if (setsockopt (metadata, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,
                sizeof(timeout)) < 0)
        perror("setsockopt failed\n");

    if (setsockopt (metadata, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,
                sizeof(timeout)) < 0)
        perror("setsockopt failed\n");