tcp_close
tp = tcp_close(tp);
tp = tcp_close(tp);
tp = tcp_close(tp);
tp = tcp_close(tp);
tp = tcp_close(tp);
return (tcp_close(tp));
tp = tcp_close(tp);
tp = tcp_close(tp);
tp = tcp_close(tp);
tcp_close(struct tcpcb *);
tp = tcp_close(tp);