sdfsd.rs

        let port = match get_available_port(DEAFULT_PORT_FROM, DEFAULT_PORT_TO) {
            Some(port) => port,
            None => panic!("failed to find available port"),
        };

        let sockaddr = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), port);

        let new_sock = match UdpSocket::bind(&sockaddr) {
            Ok(sock) => sock,
            Err(e) => panic!("failed to bind socket to port {}; err={:?}", port, e),
        };

        match new_sock.set_nonblocking(true) {
            Ok(_) => (),
            Err(e) => panic!("failed to set socket to non-blocking; err={:?}", e),
        };