Add 2 fuzzers for nu-path, nu-parser (#10376)

# Description

This PR adds a fuzzer for the nu-path and the nu-parser crate.
Now you can go to `crates/nu-path/fuzz`/`crates/nu-parser/fuzz` and run `cargo fuzz` to
find crashes.
https://github.com/nushell/nushell/issues/10365 and #9417 was found by
this


---------

Co-authored-by: sholderbach <sholderbach@users.noreply.github.com>
This commit is contained in:
Dongjia "toka" Zhang
2023-09-16 22:32:53 +02:00
committed by GitHub
parent 19d732f313
commit bc7736bc99
13 changed files with 138 additions and 0 deletions

7
crates/nu-path/fuzz/.gitignore vendored Normal file
View File

@ -0,0 +1,7 @@
target
corpus
artifacts
coverage
Cargo.lock
out

View File

@ -0,0 +1,27 @@
[package]
name = "nu-path-fuzz"
version = "0.0.0"
publish = false
edition = "2021"
[package.metadata]
cargo-fuzz = true
[dependencies]
libfuzzer-sys = "0.4"
[dependencies.nu-path]
path = ".."
# Prevent this from interfering with workspaces
[workspace]
members = ["."]
[profile.release]
debug = 1
[[bin]]
name = "path"
path = "fuzz_targets/path_fuzzer.rs"
test = false
doc = false

View File

@ -0,0 +1,8 @@
# Fuzzer for `nu-path`
- For detailed info, please look at [cargo-fuzz](https://github.com/rust-fuzz/cargo-fuzz)
# Quick start guide
- Install cargo-fuzz by `cargo install cargo-fuzz`
- Make output directory `mkdir out`
- Run the fuzzer with `cargo fuzz run parse out`

View File

@ -0,0 +1,25 @@
#![no_main]
use libfuzzer_sys::fuzz_target;
use nu_path::{expand_path_with, expand_tilde, expand_to_real_path, trim_trailing_slash};
fuzz_target!(|data: &[u8]| {
if let Ok(s) = std::str::from_utf8(data) {
let path = std::path::Path::new(s);
// Fuzzing expand_to_real_path function
let _ = expand_to_real_path(path);
// Fuzzing trim_trailing_slash function
let _ = trim_trailing_slash(s);
// Fuzzing expand_tilde function
let _ = expand_tilde(path);
// Fuzzing expand_path_with function
// Here, we're assuming a second path for the "relative to" aspect.
// For simplicity, we're just using the current directory.
let current_dir = std::path::Path::new(".");
let _ = expand_path_with(path, &current_dir);
}
});

View File

@ -0,0 +1,2 @@
[toolchain]
channel = "nightly"