163   register struct cstate *cs = comp->last_cs->cs_next;  in sl_compress_tcp()  local
198   if (ip->ip_src.s_addr != cs->cs_ip.ip_src.s_addr ||  in sl_compress_tcp()
199       ip->ip_dst.s_addr != cs->cs_ip.ip_dst.s_addr ||  in sl_compress_tcp()
200       *(int *) th != ((int *) &cs->cs_ip)[cs->cs_ip.ip_hl]) {  in sl_compress_tcp()
216       lcs = cs;  in sl_compress_tcp()
217       cs = cs->cs_next;  in sl_compress_tcp()
219       if (ip->ip_src.s_addr == cs->cs_ip.ip_src.s_addr  in sl_compress_tcp()
220 	  && ip->ip_dst.s_addr == cs->cs_ip.ip_dst.s_addr  in sl_compress_tcp()
221 	  && *(int *) th == ((int *) &cs->cs_ip)[cs->cs_ip.ip_hl])  in sl_compress_tcp()
223     } while (cs != lastcs);  in sl_compress_tcp()
246     if (cs == lastcs)  in sl_compress_tcp()
249       lcs->cs_next = cs->cs_next;  in sl_compress_tcp()
250       cs->cs_next = lastcs->cs_next;  in sl_compress_tcp()
251       lastcs->cs_next = cs;  in sl_compress_tcp()
265   oth = (struct tcphdr *) & ((int *) &cs->cs_ip)[hlen];  in sl_compress_tcp()
272   if (((u_short *) ip)[0] != ((u_short *) & cs->cs_ip)[0] ||  in sl_compress_tcp()
273       ((u_short *) ip)[3] != ((u_short *) & cs->cs_ip)[3] ||  in sl_compress_tcp()
274       ((u_short *) ip)[4] != ((u_short *) & cs->cs_ip)[4] ||  in sl_compress_tcp()
277        memcmp(ip + 1, &cs->cs_ip + 1, (deltaS - 5) << 2)) ||  in sl_compress_tcp()
333     if (ip->ip_len != cs->cs_ip.ip_len &&  in sl_compress_tcp()
334 	ntohs(cs->cs_ip.ip_len) == hlen)  in sl_compress_tcp()
350 	deltaS == ntohs(cs->cs_ip.ip_len) - hlen) {  in sl_compress_tcp()
358     if (deltaS == ntohs(cs->cs_ip.ip_len) - hlen) {  in sl_compress_tcp()
366   deltaS = ntohs(ip->ip_id) - ntohs(cs->cs_ip.ip_id);  in sl_compress_tcp()
379   memcpy(&cs->cs_ip, ip, hlen);  in sl_compress_tcp()
397   if (comp->last_xmit == cs->cs_id && compress_cid) {  in sl_compress_tcp()
402     comp->last_xmit = cs->cs_id;  in sl_compress_tcp()
406     *cp++ = cs->cs_id;  in sl_compress_tcp()
422   memcpy(&cs->cs_ip, ip, hlen);  in sl_compress_tcp()
423   ip->ip_p = cs->cs_id;  in sl_compress_tcp()
424   comp->last_xmit = cs->cs_id;  in sl_compress_tcp()
436   register struct cstate *cs;  in sl_uncompress_tcp()  local
446     cs = &comp->rstate[comp->last_recv = ip->ip_p];  in sl_uncompress_tcp()
461     memcpy(&cs->cs_ip, ip, hlen);  in sl_uncompress_tcp()
462     cs->cs_hlen = hlen;  in sl_uncompress_tcp()
500   cs = &comp->rstate[comp->last_recv];  in sl_uncompress_tcp()
501   hlen = cs->cs_ip.ip_hl << 2;  in sl_uncompress_tcp()
502   th = (struct tcphdr *) & ((u_char *) & cs->cs_ip)[hlen];  in sl_uncompress_tcp()
513       register u_int i = ntohs(cs->cs_ip.ip_len) - cs->cs_hlen;  in sl_uncompress_tcp()
521     th->th_seq = htonl(ntohl(th->th_seq) + ntohs(cs->cs_ip.ip_len)  in sl_uncompress_tcp()
522 		       - cs->cs_hlen);  in sl_uncompress_tcp()
543     DECODES(cs->cs_ip.ip_id)  in sl_uncompress_tcp()
545     cs->cs_ip.ip_id = htons(ntohs(cs->cs_ip.ip_id) + 1);  in sl_uncompress_tcp()
548 	    cs->cs_ip.ip_id, (u_long)ntohl(th->th_seq));  in sl_uncompress_tcp()
565   *bufp = cp - cs->cs_hlen;  in sl_uncompress_tcp()
566   len += cs->cs_hlen;  in sl_uncompress_tcp()
567   cs->cs_ip.ip_len = htons(len);  in sl_uncompress_tcp()
570   cs->cs_ip.ip_sum = 0;  in sl_uncompress_tcp()
571   bp = (u_short *)&cs->cs_ip;  in sl_uncompress_tcp()
576   cs->cs_ip.ip_sum = ~changes;  in sl_uncompress_tcp()
579   memcpy(*bufp, &cs->cs_ip, cs->cs_hlen);  in sl_uncompress_tcp()