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#[cfg(fuzzing_honggfuzz)]
pub mod fuzzer {
use std::{
mem::MaybeUninit,
panic::{catch_unwind, AssertUnwindSafe},
slice,
};
extern "C" {
fn HF_ITER(buf_ptr: *mut *const u8, len_ptr: *mut usize);
}
pub unsafe fn fuzz<F: Fn(&[u8])>(testfn: F) {
std::panic::set_hook(Box::new(|info| {
println!("{}", info);
std::process::abort();
}));
let mut buf_ptr = MaybeUninit::<*const u8>::uninit();
let mut len_ptr = MaybeUninit::<usize>::uninit();
loop {
HF_ITER(buf_ptr.as_mut_ptr(), len_ptr.as_mut_ptr());
let input = slice::from_raw_parts(buf_ptr.assume_init(), len_ptr.assume_init());
let panicked = catch_unwind(AssertUnwindSafe(|| {
testfn(&input);
}))
.is_err();
if panicked {
std::process::abort();
}
}
}
}
#[cfg(fuzzing_honggfuzz)]
pub use fuzzer::*;
#[cfg(feature = "bin")]
pub mod bin {
use std::{
ffi::CString,
os::raw::{c_char, c_int},
};
extern "C" {
pub fn honggfuzz_main(a: c_int, b: *const *const c_char) -> c_int;
}
pub unsafe fn exec<Args: Iterator<Item = String>>(args: Args) {
let args = args
.map(|arg| CString::new(arg).unwrap())
.collect::<Vec<_>>();
let c_args = args
.iter()
.map(|arg| arg.as_ptr())
.chain(Some(0 as *const _))
.collect::<Vec<_>>();
honggfuzz_main(args.len() as c_int, c_args.as_ptr());
}
}
#[cfg(feature = "bin")]
pub use bin::*;