EB [EternalBoys] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Reentrancy in EternalBoys._transfer(address,address,uint256) (contracts/EternalBoys.sol#1066-1173):
External calls:
- swapBack() (contracts/EternalBoys.sol#1129)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,deadAddress,block.timestamp) (contracts/EternalBoys.sol#1200-1207)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/EternalBoys.sol#1185-1191)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (contracts/EternalBoys.sol#1237)
- (success,None) = address(buyBackWallet).call{value: address(this).balance}() (contracts/EternalBoys.sol#1244)
External calls sending eth:
- swapBack() (contracts/EternalBoys.sol#1129)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,deadAddress,block.timestamp) (contracts/EternalBoys.sol#1200-1207)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (contracts/EternalBoys.sol#1237)
- (success,None) = address(buyBackWallet).call{value: address(this).balance}() (contracts/EternalBoys.sol#1244)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (contracts/EternalBoys.sol#1166)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (contracts/EternalBoys.sol#361)
- _balances[recipient] = _balances[recipient].add(amount) (contracts/EternalBoys.sol#362)
- super._transfer(from,to,amount) (contracts/EternalBoys.sol#1172)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (contracts/EternalBoys.sol#361)
- _balances[recipient] = _balances[recipient].add(amount) (contracts/EternalBoys.sol#362)
- swapping = false (contracts/EternalBoys.sol#1131)
- tokensForBuyBack += fees * 33 / 99 (contracts/EternalBoys.sol#1147)
- tokensForBuyBack += fees * sellBuyBackFee / sellTotalFees (contracts/EternalBoys.sol#1154)
- tokensForBuyBack += fees * buyBuyBackFee / buyTotalFees (contracts/EternalBoys.sol#1161)
- tokensForLiquidity += fees * 33 / 99 (contracts/EternalBoys.sol#1146)
- tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees (contracts/EternalBoys.sol#1153)
- tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees (contracts/EternalBoys.sol#1160)
- tokensForMarketing += fees * 33 / 99 (contracts/EternalBoys.sol#1148)
- tokensForMarketing += fees * sellMarketingFee / sellTotalFees (contracts/EternalBoys.sol#1155)
- tokensForMarketing += fees * buyMarketingFee / buyTotalFees (contracts/EternalBoys.sol#1162)
Apply the check-effects-interactions pattern.

Additional information: link

EternalBoys._transfer(address,address,uint256) (contracts/EternalBoys.sol#1066-1173) performs a multiplication on the result of a division:
-fees = amount.mul(buyTotalFees).div(100) (contracts/EternalBoys.sol#1159)
-tokensForMarketing += fees * buyMarketingFee / buyTotalFees (contracts/EternalBoys.sol#1162)
Consider ordering multiplication before division.

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Reentrancy in EternalBoys.swapBack() (contracts/EternalBoys.sol#1210-1245):
External calls:
- swapTokensForEth(amountToSwapForETH) (contracts/EternalBoys.sol#1222)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/EternalBoys.sol#1185-1191)
State variables written after the call(s):
- tokensForBuyBack = 0 (contracts/EternalBoys.sol#1235)
- tokensForLiquidity = 0 (contracts/EternalBoys.sol#1233)
- tokensForMarketing = 0 (contracts/EternalBoys.sol#1234)
Apply the check-effects-interactions pattern.

Additional information: link

EternalBoys._transfer(address,address,uint256) (contracts/EternalBoys.sol#1066-1173) uses tx.origin for authorization: require(bool,string)(_holderLastTransferTimestamp[tx.origin] < block.number,_transfer:: Transfer Delay enabled. Only one purchase per block allowed.) (contracts/EternalBoys.sol#1094)
Do not use tx.origin for authorization.

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EternalBoys.addLiquidity(uint256,uint256) (contracts/EternalBoys.sol#1195-1208) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,deadAddress,block.timestamp) (contracts/EternalBoys.sol#1200-1207)
Ensure that all the return values of the function calls are used.

Additional information: link

EternalBoys.constructor().totalSupply (contracts/EternalBoys.sol#936) shadows:
- ERC20.totalSupply() (contracts/EternalBoys.sol#235-237) (function)
- IERC20.totalSupply() (contracts/EternalBoys.sol#86) (function)
Rename the local variables that shadow another component.

Additional information: link

EternalBoys.updateSellFees(uint256,uint256,uint256) (contracts/EternalBoys.sol#1025-1030) should emit an event for:
- sellMarketingFee = _marketingFee (contracts/EternalBoys.sol#1026)
- sellLiquidityFee = _liquidityFee (contracts/EternalBoys.sol#1027)
- sellBuyBackFee = _buyBackFee (contracts/EternalBoys.sol#1028)
- sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuyBackFee (contracts/EternalBoys.sol#1029)
Emit an event for critical parameter changes.

Additional information: link

EternalBoys.updateBuyBackWallet(address).newWallet (contracts/EternalBoys.sol#1054) lacks a zero-check on :
- buyBackWallet = newWallet (contracts/EternalBoys.sol#1056)
Check that the address is not zero.

Additional information: link

Reentrancy in EternalBoys.swapBack() (contracts/EternalBoys.sol#1210-1245):
External calls:
- swapTokensForEth(amountToSwapForETH) (contracts/EternalBoys.sol#1222)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/EternalBoys.sol#1185-1191)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (contracts/EternalBoys.sol#1237)
- addLiquidity(liquidityTokens,ethForLiquidity) (contracts/EternalBoys.sol#1239)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,deadAddress,block.timestamp) (contracts/EternalBoys.sol#1200-1207)
External calls sending eth:
- (success) = address(marketingWallet).call{value: ethForMarketing}() (contracts/EternalBoys.sol#1237)
- addLiquidity(liquidityTokens,ethForLiquidity) (contracts/EternalBoys.sol#1239)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,deadAddress,block.timestamp) (contracts/EternalBoys.sol#1200-1207)
State variables written after the call(s):
- addLiquidity(liquidityTokens,ethForLiquidity) (contracts/EternalBoys.sol#1239)
- _allowances[owner][spender] = amount (contracts/EternalBoys.sol#427)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in EternalBoys.swapBack() (contracts/EternalBoys.sol#1210-1245):
External calls:
- swapTokensForEth(amountToSwapForETH) (contracts/EternalBoys.sol#1222)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/EternalBoys.sol#1185-1191)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (contracts/EternalBoys.sol#1237)
- addLiquidity(liquidityTokens,ethForLiquidity) (contracts/EternalBoys.sol#1239)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,deadAddress,block.timestamp) (contracts/EternalBoys.sol#1200-1207)
External calls sending eth:
- (success) = address(marketingWallet).call{value: ethForMarketing}() (contracts/EternalBoys.sol#1237)
- addLiquidity(liquidityTokens,ethForLiquidity) (contracts/EternalBoys.sol#1239)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,deadAddress,block.timestamp) (contracts/EternalBoys.sol#1200-1207)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/EternalBoys.sol#428)
- addLiquidity(liquidityTokens,ethForLiquidity) (contracts/EternalBoys.sol#1239)
- SwapAndLiquify(amountToSwapForETH,ethForLiquidity,tokensForLiquidity) (contracts/EternalBoys.sol#1240)
Apply the check-effects-interactions pattern.

Additional information: link

SafeMathUint.toInt256Safe(uint256) (contracts/EternalBoys.sol#708-712) is never used and should be removed
Remove unused functions.

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solc-0.8.9 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

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Low level call in EternalBoys.swapBack() (contracts/EternalBoys.sol#1210-1245):
- (success) = address(marketingWallet).call{value: ethForMarketing}() (contracts/EternalBoys.sol#1237)
- (success,None) = address(buyBackWallet).call{value: address(this).balance}() (contracts/EternalBoys.sol#1244)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

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Variable EternalBoys._isExcludedMaxTransactionAmount (contracts/EternalBoys.sol#894) is not in mixedCase
Follow the Solidity naming convention.

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Redundant expression "this (contracts/EternalBoys.sol#10)" inContext (contracts/EternalBoys.sol#4-13)
Remove redundant statements if they congest code but offer no value.

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Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (contracts/EternalBoys.sol#722) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (contracts/EternalBoys.sol#723)
Prevent variables from having similar names.

Additional information: link

EternalBoys.updateSwapTokensAtAmount(uint256) (contracts/EternalBoys.sol#997-1002) uses literals with too many digits:
- require(bool,string)(newAmount >= totalSupply() * 1 / 100000,Swap amount cannot be lower than 0.001% total supply.) (contracts/EternalBoys.sol#998)
Use: Ether suffix, Time suffix, or The scientific notation

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SafeMathInt.MAX_INT256 (contracts/EternalBoys.sol#649) is never used in SafeMathInt (contracts/EternalBoys.sol#647-705)
Remove unused state variables.

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isExcludedFromFees(address) should be declared external:
- EternalBoys.isExcludedFromFees(address) (contracts/EternalBoys.sol#1060-1062)
Use the external attribute for functions never called from the contract.

Additional information: link

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find PancakeSwap trading pair to compute liquidity.

Unable to find PancakeSwap trading pair to compute volume.

Unable to find PancakeSwap trading pair to compute number of swaps.

Unable to find website, listings and other project-related information

Young tokens have high risks of price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank