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|
#![no_main]
use arbitrary::Arbitrary;
use libfuzzer_sys::fuzz_target;
use tor_bytes::Reader;
#[derive(Clone, Debug, Arbitrary)]
enum Op {
GetLen,
GetRemaining,
GetConsumed,
Advance(usize),
CheckExhausted,
Truncate(usize),
Peek(usize),
ReadNestedU8(Vec<Op>),
ReadNestedU16(Vec<Op>),
ReadNestedU32(Vec<Op>),
Take(usize),
TakeRest,
TakeU8,
TakeU16,
TakeU32,
TakeU64,
TakeU128,
TakeUntil(u8),
ExtractU32,
ExtractU32N(usize),
TakeInto(u16),
}
#[derive(Clone, Debug, Arbitrary)]
struct Example {
input: Vec<u8>,
ops: Vec<Op>,
}
#[cfg(not(tarpaulin_include))]
impl Example {
fn run(self) {
let mut r = Reader::from_slice(&self.input[..]);
for op in self.ops {
op.run(&mut r);
}
let _ignore = r.into_rest();
}
}
#[cfg(not(tarpaulin_include))]
impl Op {
fn run(self, r: &mut Reader) {
use Op::*;
match self {
GetLen => {
let _len = r.total_len();
}
GetRemaining => {
let _rem = r.remaining();
}
GetConsumed => {
let _cons = r.consumed();
}
Advance(n) => {
let _ignore = r.advance(n);
}
CheckExhausted => {
let _ignore = r.should_be_exhausted();
}
Truncate(n) => {
r.truncate(n);
}
Peek(n) => {
let _ignore = r.peek(n);
}
ReadNestedU8(ops) => {
let _ignore = r.read_nested_u8len(|r_inner| {
ops.into_iter().for_each(|op| op.run(r_inner));
Ok(())
});
}
ReadNestedU16(ops) => {
let _ignore = r.read_nested_u16len(|r_inner| {
ops.into_iter().for_each(|op| op.run(r_inner));
Ok(())
});
}
ReadNestedU32(ops) => {
let _ignore = r.read_nested_u32len(|r_inner| {
ops.into_iter().for_each(|op| op.run(r_inner));
Ok(())
});
}
Take(n) => {
let _ignore = r.take(n);
}
TakeRest => {
let _ignore = r.take_rest();
}
TakeInto(n) => {
let n = n as usize;
let mut v = vec![0; n];
let _ignore = r.take_into(&mut v[..]);
}
TakeU8 => {
let _u = r.take_u8();
}
TakeU16 => {
let _u16 = r.take_u16();
}
TakeU32 => {
let _u32 = r.take_u32();
}
TakeU64 => {
let _u64 = r.take_u64();
}
TakeU128 => {
let _u128 = r.take_u128();
}
TakeUntil(byte) => {
let _ignore = r.take_until(byte);
}
ExtractU32 => {
let _ignore: Result<u32, _> = r.extract();
}
ExtractU32N(n) => {
let _ignore: Result<Vec<u32>, _> = r.extract_n(n);
}
}
}
}
fuzz_target!(|ex: Example| {
ex.run();
});
|
