84 lines
2.5 KiB
Rust
84 lines
2.5 KiB
Rust
extern crate bitcoin;
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use bitcoin::blockdata::script;
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use bitcoin::network::serialize;
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fn do_test(data: &[u8]) {
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let s: Result<script::Script, _> = serialize::deserialize(data);
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if let Ok(script) = s {
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let _: Vec<script::Instruction> = script.iter(false).collect();
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let enforce_min: Vec<script::Instruction> = script.iter(true).collect();
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let mut b = script::Builder::new();
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for ins in enforce_min {
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match ins {
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script::Instruction::Error(_) => return,
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script::Instruction::Op(op) => { b = b.push_opcode(op); }
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script::Instruction::PushBytes(bytes) => {
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// Any one-byte pushes, except -0, which can be interpreted as numbers, should be
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// reserialized as numbers. (For -1 through 16, this will use special ops; for
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// others it'll just reserialize them as pushes.)
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if bytes.len() == 1 && bytes[0] != 0x80 && bytes[0] != 0x00 {
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if let Ok(num) = script::read_scriptint(bytes) {
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b = b.push_int(num);
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} else {
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b = b.push_slice(bytes);
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}
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} else {
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b = b.push_slice(bytes);
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}
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}
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}
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}
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assert_eq!(b.into_script(), script);
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assert_eq!(data, &serialize::serialize(&script).unwrap()[..]);
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}
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}
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#[cfg(feature = "afl")]
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extern crate afl;
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#[cfg(feature = "afl")]
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fn main() {
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afl::read_stdio_bytes(|data| {
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do_test(&data);
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});
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}
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#[cfg(feature = "honggfuzz")]
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#[macro_use] extern crate honggfuzz;
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#[cfg(feature = "honggfuzz")]
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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(test)]
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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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