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#![deny(unused_imports)]
#![allow(clippy::missing_safety_doc)]
use core::slice;
use gentoo_utils::{Parseable, atom::Atom};
use std::{
env::{self},
io::{self, Write},
};
#[unsafe(no_mangle)]
pub unsafe extern "C" fn LLVMFuzzerTestOneInput(input: *const u8, len: usize) -> i32 {
let slice = unsafe { slice::from_raw_parts(input, len) };
let str = str::from_utf8(slice).expect("expected ascii input");
if str.chars().any(|c| !c.is_ascii_graphic()) {
return -1;
}
let stdin = io::stdin();
let mut stdout = io::stdout();
let mut buffer = String::new();
writeln!(&mut stdout, "{str}").unwrap();
stdin.read_line(&mut buffer).unwrap();
let control = match buffer.as_str().trim() {
"0" => Ok(()),
"1" => Err(()),
other => panic!("unexpected input from pipes: {other}"),
};
let gentoo_utils = Atom::parse(str);
match (control, gentoo_utils) {
(Ok(_), Ok(_)) => {
if env::var("FUZZER_LOG").is_ok() {
eprintln!("agreement that {str} is valid");
}
}
(Err(_), Err(_)) => {
if env::var("FUZZER_LOG").is_ok() {
eprintln!("agreement that {str} is invalid");
}
}
(Ok(_), Err(rest)) => {
panic!("disagreement on {str}\ncontrol:Ok\ngentoo-utils:Err({rest})");
}
(Err(_), Ok(atom))
if atom.usedeps().iter().any(|usedep| {
atom.usedeps()
.iter()
.filter(|u| *usedep.flag() == *u.flag())
.count()
> 1
}) =>
{
if env::var("FUZZER_LOG").is_ok() {
eprintln!(
"disagreement, but we will allow it since its probably because of duplicated usdeps"
);
}
}
(Err(_), Ok(_)) => {
panic!("disagreement on {str}\ncontrol:Err\ngentoo-utils:Ok")
}
}
0
}
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