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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_split::uumain;
use rand::Rng;
use std::ffi::OsString;
use uufuzz::{
CommandResult, compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd,
};
static CMD_PATH: &str = "split";
fn generate_split_args() -> String {
let mut rng = rand::rng();
let mut args = Vec::new();
match rng.random_range(0..=9) {
0 => {
args.push(String::from("-a")); // Suffix length
args.push(rng.random_range(1..=8).to_string());
}
1 => {
args.push(String::from("--additional-suffix"));
args.push(generate_random_string(5)); // Random suffix
}
2 => {
args.push(String::from("-b")); // Bytes per output file
args.push(rng.random_range(1..=1024).to_string() + "K");
}
3 => {
args.push(String::from("-C")); // Line bytes
args.push(rng.random_range(1..=1024).to_string());
}
4 => args.push(String::from("-d")), // Use numeric suffixes
5 => args.push(String::from("-x")), // Use hex suffixes
6 => {
args.push(String::from("-l")); // Number of lines per output file
args.push(rng.random_range(1..=1000).to_string());
}
7 => {
args.push(String::from("--filter"));
args.push(String::from("cat > /dev/null")); // Example filter command
}
8 => {
args.push(String::from("-t")); // Separator
args.push(String::from("\n")); // Newline as separator
}
9 => args.push(String::from("--verbose")), // Verbose
_ => (),
}
args.join(" ")
}
/// Function to generate a random string of lines
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 split_args = generate_split_args();
let mut args = vec![OsString::from("split")];
args.extend(split_args.split_whitespace().map(OsString::from));
let input_lines = generate_random_lines(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, 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(
"split",
&format!("{:?}", &args[1..]),
None,
&rust_result,
&gnu_result,
false, // Set to true if you want to fail on stderr diff
);
});
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