70 lines
1.8 KiB
Rust
70 lines
1.8 KiB
Rust
use std::convert::TryFrom;
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use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
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use bitcoin::consensus::Decodable;
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use p2p::address::AddrV2;
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use honggfuzz::fuzz;
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fn do_test(data: &[u8]) {
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if data.len() < 2 {
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return;
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}
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let mut cursor = std::io::Cursor::new(data);
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let addr_v2 = if let Ok(addr) = AddrV2::consensus_decode(&mut cursor) {
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addr
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} else {
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return;
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};
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if let Ok(ip_addr) = IpAddr::try_from(addr_v2.clone()) {
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let round_trip: AddrV2 = AddrV2::from(ip_addr);
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assert_eq!(addr_v2, round_trip, "AddrV2 -> IpAddr -> AddrV2 should round-trip correctly");
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}
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if let Ok(ip_addr) = Ipv4Addr::try_from(addr_v2.clone()) {
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let round_trip: AddrV2 = AddrV2::from(ip_addr);
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assert_eq!(addr_v2, round_trip, "AddrV2 -> Ipv4Addr -> AddrV2 should round-trip correctly");
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}
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if let Ok(ip_addr) = Ipv6Addr::try_from(addr_v2.clone()) {
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let round_trip: AddrV2 = AddrV2::from(ip_addr);
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assert_eq!(addr_v2, round_trip, "AddrV2 -> Ipv6Addr -> AddrV2 should round-trip correctly");
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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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