63 lines
1.9 KiB
Rust
63 lines
1.9 KiB
Rust
use honggfuzz::fuzz;
|
|
|
|
fn do_test(data: &[u8]) {
|
|
let tx_result: Result<bitcoin::blockdata::transaction::Transaction, _> =
|
|
bitcoin::consensus::encode::deserialize(data);
|
|
match tx_result {
|
|
Err(_) => {}
|
|
Ok(mut tx) => {
|
|
let ser = bitcoin::consensus::encode::serialize(&tx);
|
|
assert_eq!(&ser[..], data);
|
|
let len = ser.len();
|
|
let calculated_weight = tx.weight().to_wu() as usize;
|
|
for input in &mut tx.input {
|
|
input.witness = bitcoin::blockdata::witness::Witness::default();
|
|
}
|
|
let no_witness_len = bitcoin::consensus::encode::serialize(&tx).len();
|
|
// For 0-input transactions, `no_witness_len` will be incorrect because
|
|
// we serialize as segwit even after "stripping the witnesses". We need
|
|
// to drop two bytes (i.e. eight weight)
|
|
if tx.input.is_empty() {
|
|
assert_eq!(no_witness_len * 3 + len - 8, calculated_weight);
|
|
} else {
|
|
assert_eq!(no_witness_len * 3 + len, calculated_weight);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
loop {
|
|
fuzz!(|data| {
|
|
do_test(data);
|
|
});
|
|
}
|
|
}
|
|
|
|
#[cfg(all(test, fuzzing))]
|
|
mod tests {
|
|
fn extend_vec_from_hex(hex: &str, out: &mut Vec<u8>) {
|
|
let mut b = 0;
|
|
for (idx, c) in hex.as_bytes().iter().enumerate() {
|
|
b <<= 4;
|
|
match *c {
|
|
b'A'..=b'F' => b |= c - b'A' + 10,
|
|
b'a'..=b'f' => b |= c - b'a' + 10,
|
|
b'0'..=b'9' => b |= c - b'0',
|
|
_ => panic!("Bad hex"),
|
|
}
|
|
if (idx & 1) == 1 {
|
|
out.push(b);
|
|
b = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn duplicate_crash() {
|
|
let mut a = Vec::new();
|
|
extend_vec_from_hex("000700000001000000010000", &mut a);
|
|
super::do_test(&a);
|
|
}
|
|
}
|