John Turner
87e9d1920c
All checks were successful
Portage rejects atoms with duplicated usedeps that are otherwise valid, gentoo-utils accepts these as valid however. So we will not panic on cases of disagreement where the control side fails and we detect duplicated usedeps.
76 lines
1.9 KiB
Rust
76 lines
1.9 KiB
Rust
#![deny(unused_imports)]
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#![allow(clippy::missing_safety_doc)]
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use core::slice;
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use gentoo_utils::{Parseable, atom::Atom};
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use std::{
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io::{self, Write},
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sync::{LazyLock, Mutex},
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};
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#[derive(Debug)]
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struct State {
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input: io::Stdin,
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output: io::Stdout,
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}
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#[unsafe(no_mangle)]
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pub unsafe extern "C" fn LLVMFuzzerTestOneInput(input: *const u8, len: usize) -> i32 {
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static PIPES: LazyLock<Mutex<State>> = LazyLock::new(|| {
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Mutex::new(State {
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input: io::stdin(),
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output: io::stdout(),
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})
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});
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let slice = unsafe { slice::from_raw_parts(input, len) };
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let str = str::from_utf8(slice).expect("expected ascii input");
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if str.chars().any(|c| !c.is_ascii_graphic()) {
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return -1;
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}
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let mut state = PIPES.lock().unwrap();
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writeln!(&mut state.output, "{str}").unwrap();
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let mut buffer = String::new();
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state.input.read_line(&mut buffer).unwrap();
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let control = match buffer.as_str().trim() {
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"0" => Ok(()),
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"1" => Err(()),
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other => panic!("unexpected input from pipes: {other}"),
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};
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let gentoo_utils = Atom::parse(str);
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match (control, gentoo_utils) {
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(Ok(_), Ok(_)) => {
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eprintln!("agreement that {str} is valid");
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}
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(Err(_), Err(_)) => {
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eprintln!("agreement that {str} is invalid");
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}
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(Ok(_), Err(rest)) => {
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panic!("disagreement on {str}\ncontrol:Ok\ngentoo-utils:Err({rest})");
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}
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(Err(_), Ok(atom))
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if atom
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.usedeps()
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.iter()
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.any(|usedep| atom.usedeps().iter().filter(|u| usedep == *u).count() > 1) =>
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{
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eprintln!(
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"disagreement, but we will allow it since its probably because of duplicated usdeps"
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);
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}
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(Err(_), Ok(_)) => {
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panic!("disagreement on {str}\ncontrol:Err\ngentoo-utils:Ok")
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}
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}
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0
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}
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