307 	struct tcphdr* nth = &th;  in tcp_respond()  local
320 	nth->th_sport = thgen->th_dport;  in tcp_respond()
321 	nth->th_dport = thgen->th_sport;  in tcp_respond()
322 	nth->th_seq = htonl(seq);  in tcp_respond()
323 	nth->th_ack = htonl(ack);  in tcp_respond()
327 	nth->th_off_x2 = (sizeof(struct tcphdr) >> 2) << TH_OFF_SHIFT;  in tcp_respond()
328 	nth->th_flags = flags;  in tcp_respond()
330 		nth->th_win = htons((uint16_t) (win >> tp->rcv_scale));  in tcp_respond()
332 		nth->th_win = htons((uint16_t)win);  in tcp_respond()
333 	nth->th_urp = 0;  in tcp_respond()
334 	nth->th_sum = 0;  in tcp_respond()