14b22b933Srs /* -*- Mode: C; tab-width: 4 -*- 24b22b933Srs * 33b436d06SToomas Soome * Copyright (c) 2002-2018 Apple Inc. All rights reserved. 44b22b933Srs * 54b22b933Srs * Licensed under the Apache License, Version 2.0 (the "License"); 64b22b933Srs * you may not use this file except in compliance with the License. 74b22b933Srs * You may obtain a copy of the License at 85ffb0c9bSToomas Soome * 94b22b933Srs * http://www.apache.org/licenses/LICENSE-2.0 105ffb0c9bSToomas Soome * 114b22b933Srs * Unless required by applicable law or agreed to in writing, software 124b22b933Srs * distributed under the License is distributed on an "AS IS" BASIS, 134b22b933Srs * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 144b22b933Srs * See the License for the specific language governing permissions and 154b22b933Srs * limitations under the License. 165ffb0c9bSToomas Soome */ 174b22b933Srs 184b22b933Srs #ifndef __mDNSUNP_h 194b22b933Srs #define __mDNSUNP_h 204b22b933Srs 214b22b933Srs #include <sys/types.h> 224b22b933Srs #include <sys/socket.h> 234b22b933Srs #include <net/if.h> 244b22b933Srs #include <netinet/in.h> 254b22b933Srs 264b22b933Srs #ifdef HAVE_LINUX 274b22b933Srs #include <linux/socket.h> 285ffb0c9bSToomas Soome #define IPV6_2292_PKTINFO IPV6_2292PKTINFO 295ffb0c9bSToomas Soome #define IPV6_2292_HOPLIMIT IPV6_2292HOPLIMIT 305ffb0c9bSToomas Soome #else 315ffb0c9bSToomas Soome // The following are the supported non-linux posix OSes - 325ffb0c9bSToomas Soome // netbsd, freebsd and openbsd. 335ffb0c9bSToomas Soome #if HAVE_IPV6 345ffb0c9bSToomas Soome #define IPV6_2292_PKTINFO 19 355ffb0c9bSToomas Soome #define IPV6_2292_HOPLIMIT 20 365ffb0c9bSToomas Soome #endif 374b22b933Srs #endif 384b22b933Srs 394b22b933Srs #ifdef __cplusplus 405ffb0c9bSToomas Soome extern "C" { 414b22b933Srs #endif 424b22b933Srs 434b22b933Srs #ifdef NOT_HAVE_SOCKLEN_T 445ffb0c9bSToomas Soome typedef unsigned int socklen_t; 454b22b933Srs #endif 464b22b933Srs 474b22b933Srs #ifndef NOT_HAVE_SA_LEN 484b22b933Srs #define GET_SA_LEN(X) (sizeof(struct sockaddr) > ((struct sockaddr*)&(X))->sa_len ? \ 494b22b933Srs sizeof(struct sockaddr) : ((struct sockaddr*)&(X))->sa_len ) 504b22b933Srs #elif HAVE_IPV6 514b22b933Srs #define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : \ 524b22b933Srs ((struct sockaddr*)&(X))->sa_family == AF_INET6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr)) 534b22b933Srs #else 544b22b933Srs #define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr)) 554b22b933Srs #endif 564b22b933Srs 573b436d06SToomas Soome #define IFI_NAME IFNAMSIZ /* same as IFNAMSIZ in <net/if.h> */ 583b436d06SToomas Soome #define IFI_HADDR 8 /* allow for 64-bit EUI-64 in future */ 594b22b933Srs 604b22b933Srs // Renamed from my_in_pktinfo because in_pktinfo is used by Linux. 614b22b933Srs 624b22b933Srs struct my_in_pktinfo { 634b22b933Srs struct sockaddr_storage ipi_addr; 645ffb0c9bSToomas Soome int ipi_ifindex; /* received interface index */ 655ffb0c9bSToomas Soome char ipi_ifname[IFI_NAME]; /* received interface name */ 664b22b933Srs }; 674b22b933Srs 684b22b933Srs /* From the text (Stevens, section 20.2): */ 694b22b933Srs /* 'As an example of recvmsg we will write a function named recvfrom_flags that */ 704b22b933Srs /* is similar to recvfrom but also returns: */ 714b22b933Srs /* 1. the returned msg_flags value, */ 724b22b933Srs /* 2. the destination addres of the received datagram (from the IP_RECVDSTADDR socket option, and */ 734b22b933Srs /* 3. the index of the interface on which the datagram was received (the IP_RECVIF socket option).' */ 744b22b933Srs extern ssize_t recvfrom_flags(int fd, void *ptr, size_t nbytes, int *flagsp, 755ffb0c9bSToomas Soome struct sockaddr *sa, socklen_t *salenptr, struct my_in_pktinfo *pktp, u_char *ttl); 764b22b933Srs 774b22b933Srs struct ifi_info { 785ffb0c9bSToomas Soome char ifi_name[IFI_NAME]; /* interface name, null terminated */ 795ffb0c9bSToomas Soome u_char ifi_haddr[IFI_HADDR]; /* hardware address */ 805ffb0c9bSToomas Soome u_short ifi_hlen; /* #bytes in hardware address: 0, 6, 8 */ 815ffb0c9bSToomas Soome short ifi_flags; /* IFF_xxx constants from <net/if.h> */ 825ffb0c9bSToomas Soome short ifi_myflags; /* our own IFI_xxx flags */ 835ffb0c9bSToomas Soome int ifi_index; /* interface index */ 845ffb0c9bSToomas Soome struct sockaddr *ifi_addr; /* primary address */ 855ffb0c9bSToomas Soome struct sockaddr *ifi_netmask; 865ffb0c9bSToomas Soome struct sockaddr *ifi_brdaddr; /* broadcast address */ 875ffb0c9bSToomas Soome struct sockaddr *ifi_dstaddr; /* destination address */ 885ffb0c9bSToomas Soome struct ifi_info *ifi_next; /* next of these structures */ 894b22b933Srs }; 904b22b933Srs 914b22b933Srs #define IFI_ALIAS 1 /* ifi_addr is an alias */ 924b22b933Srs 934b22b933Srs /* From the text (Stevens, section 16.6): */ 944b22b933Srs /* 'Since many programs need to know all the interfaces on a system, we will develop a */ 954b22b933Srs /* function of our own named get_ifi_info that returns a linked list of structures, one */ 964b22b933Srs /* for each interface that is currently "up."' */ 974b22b933Srs extern struct ifi_info *get_ifi_info(int family, int doaliases); 984b22b933Srs 994b22b933Srs /* 'The free_ifi_info function, which takes a pointer that was */ 1004b22b933Srs /* returned by get_ifi_info and frees all the dynamic memory.' */ 101*472cd20dSToomas Soome extern void free_ifi_info(struct ifi_info *); 102*472cd20dSToomas Soome 103*472cd20dSToomas Soome #if defined(AF_INET6) && HAVE_IPV6 104*472cd20dSToomas Soome #define INET6_ADDRSTRLEN 46 /*Maximum length of IPv6 address */ 105*472cd20dSToomas Soome #endif 1064b22b933Srs 1074b22b933Srs #ifdef NOT_HAVE_DAEMON 1084b22b933Srs extern int daemon(int nochdir, int noclose); 1094b22b933Srs #endif 1104b22b933Srs 1114b22b933Srs #ifdef __cplusplus 1125ffb0c9bSToomas Soome } 1134b22b933Srs #endif 1144b22b933Srs 1154b22b933Srs #endif 116