Gas Guard v0.2

Gas Guard is a straightforward bash script that identifies susceptible gas leak-vulnerable code using grep regex within smart contracts.

Usage

For a single input, use the -i flag

./gasGuard.sh -i contract.sol

And for multiple inputs, use the -mi flag

./gasGuard.sh -mi contract.sol another-contract.sol

Gas Optimization Issues

gasGuard is able to find vulnerable code related to the list below

1. DEFAULT INITIALIZATION ISSUE
2. CACHE ARRAY LENGTH OUTSIDE OF LOOP
3. GREATER THAN 0 COMPARISON
4. USE CUSTOM ERROR FOR OUTPUT
5. USE ++i AND --i INSTEAD OF OTHER INC/DEC
6. USE SHIFT Right/Left INSTEAD OF DIVISION/MULTIPLICATION
7. USE CALLDATA INSTEAD OF MEMORY FOR FUNCTIONS
8. USE ASSEMBLY TO CHECK FOR ADDRESS(0)

More are coming soon..

Demo Output