DBC [DragonBall Coin] Token

Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

Different versions of Solidity is used:
- Version used: ['0.6.12', '^0.6.2']
- 0.6.12 (#25)
- 0.6.12 (#41)
- ^0.6.2 (#123)
- 0.6.12 (#178)
- 0.6.12 (#324)
- ^0.6.2 (#343)
- 0.6.12 (#395)
- 0.6.12 (#805)
Use one Solidity version.

Additional information: link

Reentrancy in DragonBall._transfer(address,address,uint256) (#1059-1103):
External calls:
- swapTokensForUSDC(swapTokensAtAmount.mul(marketingFee).div(totalFees)) (#1094)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,market,block.timestamp) (#959-965)
- swapTokensForUSDCReward(swapTokensAtAmount.mul(rewardFee).div(totalFees)) (#1095)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,reward,block.timestamp) (#978-984)
State variables written after the call(s):
- super._transfer(from,to,amount) (#1100)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#724)
- _balances[recipient] = _balances[recipient].add(amount) (#725)
- swappingBool = false (#1096)
Apply the check-effects-interactions pattern.

Additional information: link

DragonBall.addLiquidity(uint256,uint256) (#1042-1057) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,own,block.timestamp) (#1048-1055)
Ensure that all the return values of the function calls are used.

Additional information: link

ERC20.allowance(address,address).owner (#614) shadows:
- Ownable.owner() (#143-145) (function)
ERC20._approve(address,address,uint256).owner (#776) shadows:
- Ownable.owner() (#143-145) (function)
Rename the local variables that shadow another component.

Additional information: link

DragonBall.setLunchTime(uint256) (#869-871) should emit an event for:
- lunchTime = amount (#870)
DragonBall.USDCRewardsFee(uint256,uint256) (#900-903) should emit an event for:
- txone = value (#901)
- txtwo = valuea (#902)
DragonBall.setswapTokensAtAmount(uint256) (#913-915) should emit an event for:
- swapTokensAtAmount = amount (#914)
DragonBall.setLiquiditFee(uint256) (#1008-1011) should emit an event for:
- rewardFee = value (#1009)
- totalFees = rewardFee.add(marketingFee) (#1010)
DragonBall.setMarketingFee(uint256) (#1013-1017) should emit an event for:
- marketingFee = value (#1014)
- totalFees = rewardFee.add(marketingFee) (#1015)
Emit an event for critical parameter changes.

Additional information: link

DragonBall.setmarket(address).adr (#872) lacks a zero-check on :
- market = adr (#873)
Check that the address is not zero.

Additional information: link

Context._msgData() (#33-36) is never used and should be removed
DragonBall.addLiquidity(uint256,uint256) (#1042-1057) is never used and should be removed
DragonBall.launched() (#934-936) is never used and should be removed
DragonBall.swapAndLiquify(uint256) (#1019-1040) is never used and should be removed
DragonBall.swapTokensForEth(uint256) (#987-1006) is never used and should be removed
SafeMath.mod(uint256,uint256) (#301-303) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#317-320) is never used and should be removed
Remove unused functions.

Additional information: link

DragonBall.totalFees (#827) is set pre-construction with a non-constant function or state variable:
- rewardFee.add(marketingFee)
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version^0.6.2 (#123) allows old versions
Pragma version^0.6.2 (#343) allows old versions
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.

Additional information: link

Reentrancy in DragonBall._transfer(address,address,uint256) (#1059-1103):
External calls:
- swapTokensForUSDC(swapTokensAtAmount.mul(marketingFee).div(totalFees)) (#1094)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,market,block.timestamp) (#959-965)
- swapTokensForUSDCReward(swapTokensAtAmount.mul(rewardFee).div(totalFees)) (#1095)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,reward,block.timestamp) (#978-984)
State variables written after the call(s):
- swapTokensForUSDCReward(swapTokensAtAmount.mul(rewardFee).div(totalFees)) (#1095)
- _allowances[owner][spender] = amount (#783)
Reentrancy in DragonBall.constructor() (#842-862):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#847-848)
State variables written after the call(s):
- _balances[owner()] = (5 * 10 ** 6) * (10 ** 9) (#860)
- _isExcludedFromFees[owner()] = true (#853)
- _isExcludedFromFees[market] = true (#854)
- _totalSupply = (5 * 10 ** 6) * (10 ** 9) (#859)
- isbig[market] = true (#855)
- isbig[_uniswapV2Pair] = true (#856)
- isbig[address(this)] = true (#857)
- isbig[deadWallet] = true (#858)
- own = owner() (#852)
- uniswapV2Pair = _uniswapV2Pair (#851)
- uniswapV2Router = _uniswapV2Router (#850)
Reentrancy in DragonBall.swapAndLiquify(uint256) (#1019-1040):
External calls:
- swapTokensForEth(half) (#1031)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#998-1004)
- addLiquidity(otherHalf,newBalance) (#1037)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,own,block.timestamp) (#1048-1055)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1037)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,own,block.timestamp) (#1048-1055)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1037)
- _allowances[owner][spender] = amount (#783)
Apply the check-effects-interactions pattern.

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#360) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#361) is not in mixedCase
Function IUniswapV2Pair.MUM_LIQUIDITY() (#377) is not in mixedCase
Function IUniswapV2Router01.WETH() (#399) is not in mixedCase
Variable ERC20._balances (#539) is not in mixedCase
Variable ERC20._totalSupply (#543) is not in mixedCase
Function DragonBall.USDCRewardsFee(uint256,uint256) (#900-903) is not in mixedCase
Variable DragonBall.USDT (#820) is not in mixedCase
Variable DragonBall._isExcludedFromFees (#836) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#34)" inContext (#28-37)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#404) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#405)
Prevent variables from having similar names.

Additional information: link

DragonBall.slitherConstructorVariables() (#809-1105) uses literals with too many digits:
- deadWallet = 0x000000000000000000000000000000000000dEaD (#815)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DragonBall.USDT (#820) should be constant
DragonBall.deadWallet (#815) should be constant
DragonBall.reward (#818) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Reentrancy in DragonBall._transfer(address,address,uint256) (#1059-1103):
External calls:
- swapTokensForUSDC(swapTokensAtAmount.mul(marketingFee).div(totalFees)) (#1094)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,market,block.timestamp) (#959-965)
- swapTokensForUSDCReward(swapTokensAtAmount.mul(rewardFee).div(totalFees)) (#1095)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,reward,block.timestamp) (#978-984)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#784)
- swapTokensForUSDCReward(swapTokensAtAmount.mul(rewardFee).div(totalFees)) (#1095)
- Transfer(sender,recipient,amount) (#726)
- super._transfer(from,to,amount) (#1100)
Reentrancy in DragonBall.constructor() (#842-862):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#847-848)
Event emitted after the call(s):
- Transfer(address(0),owner(),(5 * 10 ** 6) * (10 ** 9)) (#861)
Reentrancy in DragonBall.swapAndLiquify(uint256) (#1019-1040):
External calls:
- swapTokensForEth(half) (#1031)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#998-1004)
- addLiquidity(otherHalf,newBalance) (#1037)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,own,block.timestamp) (#1048-1055)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1037)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,own,block.timestamp) (#1048-1055)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#784)
- addLiquidity(otherHalf,newBalance) (#1037)
Apply the check-effects-interactions pattern.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#162-165)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#171-175)
name() should be declared external:
- ERC20.name() (#567-569)
symbol() should be declared external:
- ERC20.symbol() (#575-577)
decimals() should be declared external:
- ERC20.decimals() (#580-582)
totalSupply() should be declared external:
- ERC20.totalSupply() (#587-589)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#606-609)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#614-616)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#625-628)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#643-651)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#665-668)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#684-687)
setmarket(address) should be declared external:
- DragonBall.setmarket(address) (#872-874)
setBigNumber(address,bool) should be declared external:
- DragonBall.setBigNumber(address,bool) (#892-894)
setswapTokensAtAmount(uint256) should be declared external:
- DragonBall.setswapTokensAtAmount(uint256) (#913-915)
seteddToken(address,uint256) should be declared external:
- DragonBall.seteddToken(address,uint256) (#917-919)
copyMapData(address[],uint256) should be declared external:
- DragonBall.copyMapData(address[],uint256) (#942-947)
Use the external attribute for functions never called from the contract.

Additional information: link

Average 30d PancakeSwap liquidity is low.

Number of Binance Smart Chain (BSC) token holders is low.

Token is deployed only at one blockchain

Token has only one trading pair

Contract has 5% buy tax and 5% sell tax.
Taxes are low and contract ownership is renounced.

BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link

Unable to find token on CoinGecko

Additional information: link

Unable to find token on CoinMarketCap

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Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)

Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

Additional information: link

Unable to find code repository for the project

Unable to verify token contract address on the website

Unable to find audit link on the website

Unable to find whitepaper link on the website

Young tokens have high risks of scam / price dump / death

Young tokens have high risks of scam / price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank

Young tokens have high risks of price dump / death