coreutils/fuzz/fuzz_targets/fuzz_env.rs

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2024-03-31 23:03:14 +00:00
// This file is part of the uutils coreutils package.
//
// For the full copyright and license information, please view the LICENSE
// file that was distributed with this source code.
// spell-checker:ignore chdir
#![no_main]
use libfuzzer_sys::fuzz_target;
use uu_env::uumain;
use std::ffi::OsString;
mod fuzz_common;
use crate::fuzz_common::{
compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd, CommandResult,
};
use rand::Rng;
static CMD_PATH: &str = "env";
fn generate_env_args() -> Vec<String> {
let mut rng = rand::thread_rng();
let mut args = Vec::new();
let opts = ["-i", "-0", "-v", "-vv"];
for opt in &opts {
if rng.gen_bool(0.2) {
args.push(opt.to_string());
}
}
if rng.gen_bool(0.3) {
args.push(format!(
"-u={}",
generate_random_string(rng.gen_range(3..10))
));
}
if rng.gen_bool(0.2) {
args.push(format!("--chdir={}", "/tmp")); // Simplified example
}
/*
Options not implemented for now
if rng.gen_bool(0.15) {
let sig_opts = ["--block-signal"];//, /*"--default-signal",*/ "--ignore-signal"];
let chosen_sig_opt = sig_opts[rng.gen_range(0..sig_opts.len())];
args.push(chosen_sig_opt.to_string());
// Simplify by assuming SIGPIPE for demonstration
if !chosen_sig_opt.ends_with("list-signal-handling") {
args.push(String::from("SIGPIPE"));
}
}*/
// Adding a few random NAME=VALUE pairs
for _ in 0..rng.gen_range(0..3) {
args.push(format!(
"{}={}",
generate_random_string(5),
generate_random_string(5)
));
}
args
}
fuzz_target!(|_data: &[u8]| {
let env_args = generate_env_args();
let mut args = vec![OsString::from("env")];
args.extend(env_args.iter().map(OsString::from));
let input_lines = generate_random_string(10);
let rust_result = generate_and_run_uumain(&args, uumain, Some(&input_lines));
let gnu_result = match run_gnu_cmd(CMD_PATH, &args[1..], false, None) {
Ok(result) => result,
Err(error_result) => {
eprintln!("Failed to run GNU command:");
eprintln!("Stderr: {}", error_result.stderr);
eprintln!("Exit Code: {}", error_result.exit_code);
CommandResult {
stdout: String::new(),
stderr: error_result.stderr,
exit_code: error_result.exit_code,
}
}
};
compare_result(
"env",
&format!("{:?}", &args[1..]),
None,
&rust_result,
&gnu_result,
false,
);
});