if ( (sock = socket(SOCK_STREAM, AF_INET, 0)) < 0
&& setsockopt(sock, IPPROTO_TCP, TCP_FASTOPEN, &backlog, sizeof(backlog))
)
if ( (sock = socket(SOCK_STREAM, AF_INET, 0)) < 0
&& setsockopt(sock, IPPROTO_TCP, TCP_FASTOPEN, &backlog, sizeof(backlog))
)