Golden Doge - Smart Contract Audit Report

Summary

Golden Doge ($GDOGE) is a new community-driven Defi token on the Binance Smart Chain that pays out static rewards to holders as well as BNB rewards.

Golden Doge's Token contract is deployed at 0xa53e61578ff54f1ad70186be99332a6e20b6ffa9 on the BSC mainnet.

Notes on the Contract:
The total supply of the token is set to 100 quadrillion $GDOGE [100,000,000,000,000,000].
No minting or burn functions are present; though the circulating supply can be reduced by sending tokens to the 0x..dead address, if desired.
At the time of writing this report, 95% of the total $GDOGE token supply is in possession of a presale contract, as it has recently been deployed.
The other 5% of the $GDOGE supply is in an unverified contract.
There is a 'Tax Fee' and a 'Liquidity Fee' on all transactions for any "non-excluded" address that participates in a transfer. The owner has the ability to modify the these fees to any percentage at any time.
There is a charity wallet that receives a percentage (determined by the owner) of the BNB rewards every time rewards are distributed to a holders who call the claim BNB rewards function. The owner has the ability to update the charity wallet address.
Users who hold tokens will automatically benefit from the frictionless fee redistribution at the time of each transaction as the tokens collected through the "tax fee" are removed from the circulating supply.
The liquidity fee charged on transactions is stored in the contract and, once a threshold value is met, used to buy BNB that is sent to the "Liquidity Address". This address is controlled by the team and can be updated.
The owner has the ability to withdraw any BNB held within the contract and send it to a specified address.
The BNB rewards are funded by the BNB that was acquired during the liquidity adds.
The charity fee percent is not actually a percent, it is a divisor. Therefore, if the divisor is "5", then 20% of the rewards go to the charity address.

The owner of the contract can exclude and include accounts from fees and reward distribution.
The owner has the ability to set and update a maximum transaction percent at any time, which will impose a limit to the number of tokens that can be transferred during any given transaction. The owner can also include and exclude accounts from this transaction limit.
This maximum transaction amount does not apply to the owner during transactions where the owner is either the sender or the recipient.
The owner has the ability to use the "lock" function in order to temporarily set ownership to address(0). Ownership is restored after the duration of time determined by the owner has passed and they use the 'unlock' function. Ownership can additionally be restored (even if ownership was previously renounced), by using the unlock function a second time.
Ownership has not been renounced.
The contract utilizes SafeMath libraries along with following the BEP20 standard.
Audit Findings Summary
No external threats were identified.
We recommend that the team renounces ownership after a successful deployment.
As with any presale, please ensure trust in the team prior to investing as they have substantial control in the ecosystem.
Further, ensure trust in the team as they have control of the BNB collected from fees.
Date: July 15th, 2021

Audit Results

Vulnerability Category	Notes	Result
Arbitrary Storage Write	N/A	PASS
Arbitrary Jump	N/A	PASS
Delegate Call to Untrusted Contract	N/A	PASS
Dependence on Predictable Variables	N/A	PASS
Deprecated Opcodes	N/A	PASS
Ether Thief	N/A	PASS
Exceptions	N/A	PASS
External Calls	N/A	PASS
Flash Loans	N/A	PASS
Integer Over/Underflow	N/A	PASS
Multiple Sends	N/A	PASS
Oracles	N/A	PASS
Suicide	N/A	PASS
State Change External Calls	N/A	PASS
Unchecked Retval	N/A	PASS
User Supplied Assertion	N/A	PASS
Critical Solidity Compiler	N/A	PASS
Overall Contract Safety		PASS

Function Graph

ERC20 Token Graph

Inheritence Chart

Multi-file Token

Functions Overview


 ($) = payable function
 # = non-constant function
 
 + [Int] IBEP20 
    - [Ext] totalSupply
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #

 + [Lib] SafeMath 
    - [Int] add
    - [Int] sub
    - [Int] sub
    - [Int] mul
    - [Int] div
    - [Int] div
    - [Int] mod
    - [Int] mod

 +  Context 
    - [Int] _msgSender
    - [Int] _msgData

 + [Lib] Address 
    - [Int] isContract
    - [Int] sendValue #
    - [Int] functionCall #
    - [Int] functionCall #
    - [Int] functionCallWithValue #
    - [Int] functionCallWithValue #
    - [Prv] _functionCallWithValue #

 +  Ownable (Context)
    - [Int]  #
    - [Pub] owner
    - [Pub] renounceOwnership #
       - modifiers: onlyOwner
    - [Pub] transferOwnership #
       - modifiers: onlyOwner
    - [Pub] geUnlockTime
    - [Pub] lock #
       - modifiers: onlyOwner
    - [Pub] unlock #

 + [Int] IPancakeFactory 
    - [Ext] feeTo
    - [Ext] feeToSetter
    - [Ext] getPair
    - [Ext] allPairs
    - [Ext] allPairsLength
    - [Ext] createPair #
    - [Ext] setFeeTo #
    - [Ext] setFeeToSetter #

 + [Int] IPancakePair 
    - [Ext] name
    - [Ext] symbol
    - [Ext] decimals
    - [Ext] totalSupply
    - [Ext] balanceOf
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transfer #
    - [Ext] transferFrom #
    - [Ext] DOMAIN_SEPARATOR
    - [Ext] PERMIT_TYPEHASH
    - [Ext] nonces
    - [Ext] permit #
    - [Ext] MINIMUM_LIQUIDITY
    - [Ext] factory
    - [Ext] token0
    - [Ext] token1
    - [Ext] getReserves
    - [Ext] price0CumulativeLast
    - [Ext] price1CumulativeLast
    - [Ext] kLast
    - [Ext] mint #
    - [Ext] burn #
    - [Ext] swap #
    - [Ext] skim #
    - [Ext] sync #
    - [Ext] initialize #

 + [Int] IPancakeRouter01 
    - [Ext] factory
    - [Ext] WETH
    - [Ext] addLiquidity #
    - [Ext] addLiquidityETH ($)
    - [Ext] removeLiquidity #
    - [Ext] removeLiquidityETH #
    - [Ext] removeLiquidityWithPermit #
    - [Ext] removeLiquidityETHWithPermit #
    - [Ext] swapExactTokensForTokens #
    - [Ext] swapTokensForExactTokens #
    - [Ext] swapExactETHForTokens ($)
    - [Ext] swapTokensForExactETH #
    - [Ext] swapExactTokensForETH #
    - [Ext] swapETHForExactTokens ($)
    - [Ext] quote
    - [Ext] getAmountOut
    - [Ext] getAmountIn
    - [Ext] getAmountsOut
    - [Ext] getAmountsIn

 + [Int] IPancakeRouter02 (IPancakeRouter01)
    - [Ext] removeLiquidityETHSupportingFeeOnTransferTokens #
    - [Ext] removeLiquidityETHWithPermitSupportingFeeOnTransferTokens #
    - [Ext] swapExactTokensForTokensSupportingFeeOnTransferTokens #
    - [Ext] swapExactETHForTokensSupportingFeeOnTransferTokens ($)
    - [Ext] swapExactTokensForETHSupportingFeeOnTransferTokens #

 +  ReentrancyGuard 
    - [Pub]  #

 +  GoldenDoge (Context, IBEP20, Ownable, ReentrancyGuard)
    - [Pub]  #
    - [Pub] name
    - [Pub] symbol
    - [Pub] decimals
    - [Pub] totalSupply
    - [Pub] balanceOf
    - [Pub] transfer #
    - [Pub] allowance
    - [Pub] approve #
    - [Pub] transferFrom #
    - [Pub] increaseAllowance #
    - [Pub] decreaseAllowance #
    - [Pub] isExcludedFromReward
    - [Pub] totalFees
    - [Pub] deliver #
    - [Pub] reflectionFromToken
    - [Pub] tokenFromReflection
    - [Pub] excludeFromReward #
       - modifiers: onlyOwner
    - [Ext] includeInReward #
       - modifiers: onlyOwner
    - [Pub] excludeFromFee #
       - modifiers: onlyOwner
    - [Pub] includeInFee #
       - modifiers: onlyOwner
    - [Ext] setTaxFeePercent #
       - modifiers: onlyOwner
    - [Ext] setLiquidityFeePercent #
       - modifiers: onlyOwner
    - [Pub] setSwapAndLiquifyEnabled #
       - modifiers: onlyOwner
    - [Pub] excludeFromBot #
       - modifiers: onlyOwner
    - [Pub] includeInBot #
       - modifiers: onlyOwner
    - [Ext]  ($)
    - [Prv] _reflectFee #
    - [Prv] _getValues
    - [Prv] _getTValues
    - [Prv] _getRValues
    - [Prv] _getRate
    - [Prv] _getCurrentSupply
    - [Prv] _takeLiquidity #
    - [Prv] calculateTaxFee
    - [Prv] calculateLiquidityFee
    - [Prv] removeAllFee #
    - [Prv] restoreAllFee #
    - [Pub] isExcludedFromFee
    - [Prv] _approve #
    - [Prv] _transfer #
    - [Prv] sendETHToFee #
    - [Prv] swapTokensForEth #
    - [Prv] _tokenTransfer #
    - [Prv] _transferBothExcluded #
    - [Prv] _transferStandard #
    - [Prv] _transferToExcluded #
    - [Prv] _transferFromExcluded #
    - [Pub] calculateBNBReward
    - [Prv] getBNBReward
    - [Pub] getRewardCycleBlock
    - [Pub] claimBNBReward #
       - modifiers: isHuman,nonReentrant
    - [Prv] topUpClaimCycleAfterTransfer #
    - [Prv] calculateTopUpClaim
    - [Pub] setMaxTxAmount #
       - modifiers: onlyOwner
    - [Pub] setExcludeFromMaxTx #
       - modifiers: onlyOwner
    - [Pub] setRewardCycleBlock #
       - modifiers: onlyOwner
    - [Pub] setLiquidityAddress #
       - modifiers: onlyOwner
    - [Pub] setCharityAddress #
       - modifiers: onlyOwner
    - [Pub] setTakeCharityFee #
       - modifiers: onlyOwner
    - [Pub] setCharityFeePercent #
       - modifiers: onlyOwner
    - [Pub] setRewardThreshold #
       - modifiers: onlyOwner
    - [Pub] setThreshHoldTopUpRate #
       - modifiers: onlyOwner
    - [Pub] setNextAvailableClaimDate #
       - modifiers: onlyOwner
    - [Pub] liquidityBnb #
       - modifiers: onlyOwner

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