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Port glibc's strstr to Rust #55

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mre opened this issue Nov 20, 2019 · 0 comments
Open

Port glibc's strstr to Rust #55

mre opened this issue Nov 20, 2019 · 0 comments
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level-intermediate topic-engineering topic-patterns-and-idioms topic-systems-programming

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@mre
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mre commented Nov 20, 2019

What?

https://sourceware.org/git/?p=glibc.git;a=blob;f=string/strstr.c;hb=9d13fb2413921c713f83efe331e8e4d219c62c6b#l21

Why?

My assumption is, that there is a lot of undefined behavior in this code.
We could talk about fuzzing, porting C code, performance benchmarks and more.

How?

  • Create a naive implementation of strstr in Rust.
  • Benchmark it against the existing C version.
  • Port the C strstr version verbatim to Rust.
  • Run afl (fuzzing) against it to check for edge-cases.

Thanks for the inspiration @jorgelbg.
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