((struct ip *)ti)->ip_len = sizeof (struct tcpiphdr) + optlen + len;
((struct ip *)ti)->ip_ttl = TCP_TTL;
if (so->so_options & SO_DONTROUTE)
((struct ip *)ti)->ip_len = sizeof (struct tcpiphdr) + optlen + len;
((struct ip *)ti)->ip_ttl = TCP_TTL;
if (so->so_options & SO_DONTROUTE)