42     struct cmsghdr  *cmptr;  in recvfrom_flags()  local
93     for (cmptr = CMSG_FIRSTHDR(&msg); cmptr != NULL;  in recvfrom_flags()
94          cmptr = CMSG_NXTHDR(&msg, cmptr)) {  in recvfrom_flags()
105         if (cmptr->cmsg_level == IPPROTO_IP &&  in recvfrom_flags()
106             cmptr->cmsg_type == IP_PKTINFO) {  in recvfrom_flags()
110             tmp = (struct in_pktinfo *) CMSG_DATA(cmptr);  in recvfrom_flags()
120         if (cmptr->cmsg_level == IPPROTO_IP &&  in recvfrom_flags()
121             cmptr->cmsg_type == IP_RECVDSTADDR) {  in recvfrom_flags()
125             sin->sin_addr = *(struct in_addr*)CMSG_DATA(cmptr);  in recvfrom_flags()
132         if (cmptr->cmsg_level == IPPROTO_IP &&  in recvfrom_flags()
133             cmptr->cmsg_type == IP_RECVIF) {  in recvfrom_flags()
134             struct sockaddr_dl  *sdl = (struct sockaddr_dl *) CMSG_DATA(cmptr);  in recvfrom_flags()
152         if (cmptr->cmsg_level == IPPROTO_IP &&  in recvfrom_flags()
153             cmptr->cmsg_type == IP_RECVTTL) {  in recvfrom_flags()
154             *ttl = *(u_char*)CMSG_DATA(cmptr);  in recvfrom_flags()
157         else if (cmptr->cmsg_level == IPPROTO_IP &&  in recvfrom_flags()
158 …   cmptr->cmsg_type == IP_TTL) {  // some implementations seem to send IP_TTL instead of IP_RECVTTL  in recvfrom_flags()
159             *ttl = *(int*)CMSG_DATA(cmptr);  in recvfrom_flags()
165         if (cmptr->cmsg_level == IPPROTO_IPV6 &&  in recvfrom_flags()
166             cmptr->cmsg_type  == IPV6_2292_PKTINFO) {  in recvfrom_flags()
168             struct in6_pktinfo *ip6_info = (struct in6_pktinfo*)CMSG_DATA(cmptr);  in recvfrom_flags()
184         if (cmptr->cmsg_level == IPPROTO_IPV6 &&  in recvfrom_flags()
185             cmptr->cmsg_type == IPV6_2292_HOPLIMIT) {  in recvfrom_flags()
186             *ttl = *(int*)CMSG_DATA(cmptr);  in recvfrom_flags()