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rust-bitcoin-unsafe-fast
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fuzz: add Script::iter tests to script deserialization test

This commit is contained in:
Andrew Poelstra 2018-08-20 18:30:05 +00:00
parent 08db6fe29f
commit fc0fec7e19
1 changed files with 31 additions and 1 deletions
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32
fuzz/fuzz_targets/deserialize_script.rs
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@ -1,7 +1,37 @@
extern crate bitcoin;
use bitcoin::blockdata::script;
use bitcoin::network::serialize;
fn do_test(data: &[u8]) {
let _: Result<bitcoin::blockdata::script::Script, _> = bitcoin::network::serialize::deserialize(data);
let s: Result<script::Script, _> = serialize::deserialize(data);
if let Ok(script) = s {
let _: Vec<script::Instruction> = script.iter(false).collect();
let enforce_min: Vec<script::Instruction> = script.iter(true).collect();
let mut b = script::Builder::new();
for ins in enforce_min {
match ins {
script::Instruction::Error(_) => return,
script::Instruction::Op(op) => { b = b.push_opcode(op); }
script::Instruction::PushBytes(bytes) => {
// Any one-byte pushes, except -0, which can be interpreted as numbers, should be
// reserialized as numbers. (For -1 through 16, this will use special ops; for
// others it'll just reserialize them as pushes.)
if bytes.len() == 1 && bytes[0] != 0x80 && bytes[0] != 0x00 {
if let Ok(num) = script::read_scriptint(bytes) {
b = b.push_int(num);
} else {
b = b.push_slice(bytes);
}
} else {
b = b.push_slice(bytes);
}
}
}
}
assert_eq!(b.into_script(), script);
}
}
#[cfg(feature = "afl")]