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// 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 parens
#![no_main]
use libfuzzer_sys::fuzz_target;
use uu_sort::uumain;
use rand::Rng;
use std::env;
use std::ffi::OsString;
use uufuzz::CommandResult;
use uufuzz::{compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd};
static CMD_PATH: &str = "sort";
fn generate_sort_args() -> String {
let mut rng = rand::rng();
let arg_count = rng.random_range(1..=5);
let mut args = Vec::new();
for _ in 0..arg_count {
match rng.random_range(0..=4) {
0 => args.push(String::from("-r")), // Reverse the result of comparisons
1 => args.push(String::from("-n")), // Compare according to string numerical value
2 => args.push(String::from("-f")), // Fold lower case to upper case characters
3 => args.push(generate_random_string(rng.random_range(1..=10))), // Random string (to simulate file names)
_ => args.push(String::from("-k") + &rng.random_range(1..=5).to_string()), // Sort via a specified field
}
}
args.join(" ")
}
fn generate_random_lines(count: usize) -> String {
let mut rng = rand::rng();
let mut lines = Vec::new();
for _ in 0..count {
lines.push(generate_random_string(rng.random_range(1..=20)));
}
lines.join("\n")
}
fuzz_target!(|_data: &[u8]| {
let sort_args = generate_sort_args();
let mut args = vec![OsString::from("sort")];
args.extend(sort_args.split_whitespace().map(OsString::from));
// Generate random lines to sort
let input_lines = generate_random_lines(10);
let rust_result = generate_and_run_uumain(&args, uumain, Some(&input_lines));
// TODO remove once uutils sort supports localization
unsafe {
env::set_var("LC_ALL", "C");
}
let gnu_result = match run_gnu_cmd(CMD_PATH, &args[1..], false, Some(&input_lines)) {
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(
"sort",
&format!("{:?}", &args[1..]),
None,
&rust_result,
&gnu_result,
false, // Set to true if you want to fail on stderr diff
);
});
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