105 	struct ip *ip = mtod(m, struct ip *);  in ip_dooptions()  local
125 	dst = ip->ip_dst;  in ip_dooptions()
126 	cp = (u_char *)(ip + 1);  in ip_dooptions()
127 	cnt = (ip->ip_hl << 2) - sizeof (struct ip);  in ip_dooptions()
136 				code = &cp[IPOPT_OLEN] - (u_char *)ip;  in ip_dooptions()
141 				code = &cp[IPOPT_OLEN] - (u_char *)ip;  in ip_dooptions()
164 				code = &cp[IPOPT_OLEN] - (u_char *)ip;  in ip_dooptions()
168 				code = &cp[IPOPT_OFFSET] - (u_char *)ip;  in ip_dooptions()
171 			ipaddr.sin_addr = ip->ip_dst;  in ip_dooptions()
194 				save_rte(m, cp, ip->ip_src);  in ip_dooptions()
214 					    inet_ntoa_r(ip->ip_src, srcbuf),  in ip_dooptions()
215 					    inet_ntoa_r(ip->ip_dst, dstbuf));  in ip_dooptions()
266 			ip->ip_dst = ipaddr.sin_addr;  in ip_dooptions()
271 			forward = !IN_MULTICAST(ntohl(ip->ip_dst.s_addr));  in ip_dooptions()
280 				code = &cp[IPOPT_OFFSET] - (u_char *)ip;  in ip_dooptions()
284 				code = &cp[IPOPT_OFFSET] - (u_char *)ip;  in ip_dooptions()
293 			(void)memcpy(&ipaddr.sin_addr, &ip->ip_dst,  in ip_dooptions()
320 			code = cp - (u_char *)ip;  in ip_dooptions()
322 				code = &cp[IPOPT_OLEN] - (u_char *)ip;  in ip_dooptions()
326 				code = &cp[IPOPT_OLEN] - (u_char *)ip;  in ip_dooptions()
332 					code = &cp[IPOPT_OFFSET] - (u_char *)ip;  in ip_dooptions()
346 					code = &cp[IPOPT_OFFSET] - (u_char *)ip;  in ip_dooptions()
363 					code = &cp[IPOPT_OFFSET] - (u_char *)ip;  in ip_dooptions()
375 				code = &cp[IPOPT_OFFSET + 1] - (u_char *)ip;  in ip_dooptions()
485 	struct ip *ip = mtod(m, struct ip *);  in ip_stripoptions()  local
488 	olen = (ip->ip_hl << 2) - sizeof(struct ip);  in ip_stripoptions()
492 	ip->ip_len = htons(ntohs(ip->ip_len) - olen);  in ip_stripoptions()
493 	ip->ip_hl = sizeof(struct ip) >> 2;  in ip_stripoptions()
495 	bcopy((char *)ip + sizeof(struct ip) + olen, (ip + 1),  in ip_stripoptions()
496 	    (size_t )(m->m_len - sizeof(struct ip)));  in ip_stripoptions()
511 	struct ip *ip = mtod(m, struct ip *);  in ip_insertoptions()  local
515 	if (optlen + ntohs(ip->ip_len) > IP_MAXPACKET) {  in ip_insertoptions()
520 		ip->ip_dst = p->ipopt_dst;  in ip_insertoptions()
530 		m->m_len -= sizeof(struct ip);  in ip_insertoptions()
531 		m->m_data += sizeof(struct ip);  in ip_insertoptions()
534 		m->m_len = optlen + sizeof(struct ip);  in ip_insertoptions()
536 		bcopy(ip, mtod(m, void *), sizeof(struct ip));  in ip_insertoptions()
541 		bcopy(ip, mtod(m, void *), sizeof(struct ip));  in ip_insertoptions()
543 	ip = mtod(m, struct ip *);  in ip_insertoptions()
544 	bcopy(p->ipopt_list, ip + 1, optlen);  in ip_insertoptions()
545 	*phlen = sizeof(struct ip) + optlen;  in ip_insertoptions()
546 	ip->ip_v = IPVERSION;  in ip_insertoptions()
547 	ip->ip_hl = *phlen >> 2;  in ip_insertoptions()
548 	ip->ip_len = htons(ntohs(ip->ip_len) + optlen);  in ip_insertoptions()
557 ip_optcopy(struct ip *ip, struct ip *jp)  in ip_optcopy()  argument
562 	cp = (u_char *)(ip + 1);  in ip_optcopy()
564 	cnt = (ip->ip_hl << 2) - sizeof (struct ip);  in ip_optcopy()
720 	struct ip *ip = mtod(m, struct ip *);  in ip_checkrouteralert()  local
725 	cp = (u_char *)(ip + 1);  in ip_checkrouteralert()
726 	cnt = (ip->ip_hl << 2) - sizeof (struct ip);  in ip_checkrouteralert()