2 releases
0.3.1-dev | Feb 1, 2023 |
---|---|
0.3.0-dev | Jan 27, 2023 |
#10 in #etk
40 downloads per month
Used in 3 crates
(via fuel-etk-dasm)
10MB
115 lines
etk-4byte
Ethereum function selector reverse lookup database, populated from 4byte.directory.
Updating the Database
Since etk-4byte
is a purely offline database, it needs regular updates. To fetch the latest database and convert it to the expected format, run:
$ cargo run --features=generate --bin etk-4byte-generate > src/signatures.txt
$ cargo run --features=generate --bin etk-4byte-pack
Then recompile.
lib.rs
:
EVM Toolkit Function Selector Database.
To roughly quote 4byte.directory:
Function calls in the Ethereum Virtual Machine are specified by the first four bytes of data sent with a transaction. These function selectors are defined as the first four bytes of the Keccak-256 hash of the canonical representation of the function signature. Since this is a one-way operation, it is not possible to derive the human-readable representation of the function (signature) from the four byte selector. This database is meant to allow mapping those bytes signatures back to their human-readable versions.
Dependencies
~7–19MB
~416K SLoC