diff options
| -rw-r--r-- | .gitignore | 4 | ||||
| -rw-r--r-- | Cargo.lock | 563 | ||||
| -rw-r--r-- | Cargo.toml | 11 | ||||
| -rw-r--r-- | src/main.rs | 45 |
4 files changed, 623 insertions, 0 deletions
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= None)] +struct Args { + /// The address and port to listen and accept cleartext UDP datagrams from + #[arg(short, long)] + bind: String, + + /// The destination to send obfuscated UDP datagrams to + #[arg(short, long)] + sendto: String, + + /// The hex representation of XOR key to use + #[arg(short, long)] + key: String, +} + +#[tokio::main] +async fn main() { + let args = Args::parse(); + let key = hex::decode(args.key) + .expect("failed to decode key hex string"); + let sock = UdpSocket::bind(&args.bind).await + .expect("failed to bind UDP endpoint"); + let mut buf = [0; 65536]; + loop { + if let Ok((len, _)) = sock.recv_from(&mut buf).await { + let mut i = 0; + let n = key.len(); + for j in 0..len { + buf[j] ^= key[i]; + i += 1; + if i == n { + i = 0; + } + } + let _ = sock.send_to(&buf[..len], &args.sendto).await; + } + } +} |