Add EOF container validation script

[jochem-brouwer]

This PR adds a CLI to enable EOF container checks via the command line, see ipsilon/eof#146

Additionally, this exports EOFContainer and validateEOF from EVM to expose this externally.

Please do not merge until we get a 👍 that this works with the fuzzer.

Usage:

Ensure all libraries are build, cd into the monorepo and then npm i.

Now cd ./packages/evm and then tsx ./scripts/eofContainerValidator.ts. The file will read hex strings from the stdin and will either output OK if the container is valid, or err: <REASON> if there is a validation error.

[shemnon]

It seems like it should work but when I try and run a process from within Java I never get any output from the subprocess. Is there a way to force flushes? My fuzzer hangs reading from the stream.

Here's the equivelant Java code starting the process.

Process p =
    new ProcessBuilder()
        .redirectErrorStream(true)
        .command(
            "/opt/homebrew/bin/tsx",
            "/Users/shemnon/git/ethereumjs/ethereumjs-monorepo/packages/evm/scripts/eofContainerValidator.ts")
        .start();

[jochem-brouwer]

Could you retry with my latest commit? Otherwise I might have to figure out how to setup the Java process so I can test it myself 😅

[shemnon]

No dice. I think readline package may be the issue. Java processes are just pipes, there is no higher level TTY interactions.

Something like this needs to work:

echo ef00010100040200010001040000000080000000 > simple.eof
tsx scripts/eofContainerValidator.ts < simple.eof 

and output OK

[jochem-brouwer]

This latest push could fix it?

[shemnon]

That works. I'll post some findings over at ipsilon/eof#146 (comment) in a bit.

[jochem-brouwer]

Cool, thanks a lot!

[acolytec3]

Neat! We should consider rewording our Trying to read out of bounds error to be more descriptive in a future EOF related PR.

[holgerd77]

Cool, nice! 🎉❤️ Love this! 😃

From my side we could merge too (won’t do myself).