63 lines
1.7 KiB
Rust
63 lines
1.7 KiB
Rust
use bitcoin::block::{self, Block, BlockCheckedExt as _};
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use honggfuzz::fuzz;
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fn do_test(data: &[u8]) {
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let block_result: Result<bitcoin::block::Block, _> =
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bitcoin::consensus::encode::deserialize(data);
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match block_result {
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Err(_) => {}
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Ok(block) => {
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let ser = bitcoin::consensus::encode::serialize(&block);
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assert_eq!(&ser[..], data);
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// Manually call all compute functions with unchecked block data.
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let (header, transactions) = block.into_parts();
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block::compute_merkle_root(&transactions);
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block::compute_witness_commitment(&transactions, &[]); // TODO: Is empty slice ok?
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block::compute_witness_root(&transactions);
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if let Ok(block) = Block::new_checked(header, transactions) {
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let _ = block.bip34_block_height();
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block.block_hash();
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block.weight();
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}
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}
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}
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}
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fn main() {
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loop {
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fuzz!(|data| {
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do_test(data);
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});
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}
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}
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#[cfg(all(test, fuzzing))]
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mod tests {
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fn extend_vec_from_hex(hex: &str, out: &mut Vec<u8>) {
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let mut b = 0;
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for (idx, c) in hex.as_bytes().iter().enumerate() {
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b <<= 4;
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match *c {
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b'A'..=b'F' => b |= c - b'A' + 10,
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b'a'..=b'f' => b |= c - b'a' + 10,
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b'0'..=b'9' => b |= c - b'0',
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_ => panic!("Bad hex"),
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}
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if (idx & 1) == 1 {
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out.push(b);
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b = 0;
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}
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}
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}
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#[test]
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fn duplicate_crash() {
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let mut a = Vec::new();
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extend_vec_from_hex("00", &mut a);
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super::do_test(&a);
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}
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}
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