147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* -*- Mode: C; tab-width: 4 -*- 247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * Copyright (c) 2002-2004 Apple Computer, Inc. All rights reserved. 447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * Licensed under the Apache License, Version 2.0 (the "License"); 647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * you may not use this file except in compliance with the License. 747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * You may obtain a copy of the License at 847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * http://www.apache.org/licenses/LICENSE-2.0 1047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * 1147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * Unless required by applicable law or agreed to in writing, software 1247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * distributed under the License is distributed on an "AS IS" BASIS, 1347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * See the License for the specific language governing permissions and 1547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt * limitations under the License. 1647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt */ 1747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 1847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#ifndef __mDNSUNP_h 1947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define __mDNSUNP_h 2047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 2147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#include <sys/types.h> 2247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#include <sys/socket.h> 2347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#include <net/if.h> 2447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#include <netinet/in.h> 2547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 2647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#ifdef HAVE_LINUX 2747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#include <linux/socket.h> 2847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define IPV6_2292_PKTINFO IPV6_2292PKTINFO 2947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define IPV6_2292_HOPLIMIT IPV6_2292HOPLIMIT 3047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#else 3147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// The following are the supported non-linux posix OSes - 3247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// netbsd, freebsd and openbsd. 3347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if HAVE_IPV6 3447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define IPV6_2292_PKTINFO 19 3547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define IPV6_2292_HOPLIMIT 20 3647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 3747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 3847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 3947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#ifdef __cplusplus 4047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt extern "C" { 4147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 4247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 4347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#ifdef NOT_HAVE_SOCKLEN_T 4447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt typedef unsigned int socklen_t; 4547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 4647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 47dd52342e088715929196886494c5055f9186d5c3Robert Greenwalt#if !defined(_SS_MAXSIZE) && !defined(__ANDROID__) 4847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if HAVE_IPV6 4947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define sockaddr_storage sockaddr_in6 5047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#else 5147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define sockaddr_storage sockaddr 5247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif // HAVE_IPV6 53dd52342e088715929196886494c5055f9186d5c3Robert Greenwalt#endif // !defined(_SS_MAXSIZE) && !defined(__ANDROID__) 5447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 5547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#ifndef NOT_HAVE_SA_LEN 5647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define GET_SA_LEN(X) (sizeof(struct sockaddr) > ((struct sockaddr*)&(X))->sa_len ? \ 5747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt sizeof(struct sockaddr) : ((struct sockaddr*)&(X))->sa_len ) 5847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#elif HAVE_IPV6 5947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : \ 6047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt ((struct sockaddr*)&(X))->sa_family == AF_INET6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr)) 6147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#else 6247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr)) 6347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 6447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 6547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define IFI_NAME 16 /* same as IFNAMSIZ in <net/if.h> */ 6647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define IFI_HADDR 8 /* allow for 64-bit EUI-64 in future */ 6747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 6847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt// Renamed from my_in_pktinfo because in_pktinfo is used by Linux. 6947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 7047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstruct my_in_pktinfo { 7147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct sockaddr_storage ipi_addr; 7247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt int ipi_ifindex; /* received interface index */ 7347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char ipi_ifname[IFI_NAME]; /* received interface name */ 7447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt}; 7547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 7647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* From the text (Stevens, section 20.2): */ 7747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* 'As an example of recvmsg we will write a function named recvfrom_flags that */ 7847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* is similar to recvfrom but also returns: */ 7947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* 1. the returned msg_flags value, */ 8047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* 2. the destination addres of the received datagram (from the IP_RECVDSTADDR socket option, and */ 8147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* 3. the index of the interface on which the datagram was received (the IP_RECVIF socket option).' */ 8247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltextern ssize_t recvfrom_flags(int fd, void *ptr, size_t nbytes, int *flagsp, 8347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct sockaddr *sa, socklen_t *salenptr, struct my_in_pktinfo *pktp, u_char *ttl); 8447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 8547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltstruct ifi_info { 8647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt char ifi_name[IFI_NAME]; /* interface name, null terminated */ 8747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt u_char ifi_haddr[IFI_HADDR]; /* hardware address */ 8847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt u_short ifi_hlen; /* #bytes in hardware address: 0, 6, 8 */ 8947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt short ifi_flags; /* IFF_xxx constants from <net/if.h> */ 9047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt short ifi_myflags; /* our own IFI_xxx flags */ 9147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt int ifi_index; /* interface index */ 9247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct sockaddr *ifi_addr; /* primary address */ 9347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct sockaddr *ifi_netmask; 9447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct sockaddr *ifi_brdaddr;/* broadcast address */ 9547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct sockaddr *ifi_dstaddr;/* destination address */ 9647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt struct ifi_info *ifi_next; /* next of these structures */ 9747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt}; 9847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 9947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if defined(AF_INET6) && HAVE_IPV6 && HAVE_LINUX 10047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define PROC_IFINET6_PATH "/proc/net/if_inet6" 10147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltextern struct ifi_info *get_ifi_info_linuxv6(int family, int doaliases); 10247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 10347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 10447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#if defined(AF_INET6) && HAVE_IPV6 10547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define INET6_ADDRSTRLEN 46 /*Maximum length of IPv6 address */ 10647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 10747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 10847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 10947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 11047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#define IFI_ALIAS 1 /* ifi_addr is an alias */ 11147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 11247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* From the text (Stevens, section 16.6): */ 11347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* 'Since many programs need to know all the interfaces on a system, we will develop a */ 11447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* function of our own named get_ifi_info that returns a linked list of structures, one */ 11547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* for each interface that is currently "up."' */ 11647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltextern struct ifi_info *get_ifi_info(int family, int doaliases); 11747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 11847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* 'The free_ifi_info function, which takes a pointer that was */ 11947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt/* returned by get_ifi_info and frees all the dynamic memory.' */ 12047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltextern void free_ifi_info(struct ifi_info *); 12147e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 12247e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#ifdef NOT_HAVE_DAEMON 12347e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwaltextern int daemon(int nochdir, int noclose); 12447e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 12547e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 12647e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#ifdef __cplusplus 12747e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt } 12847e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 12947e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt 13047e4cebad7397422144bb03a21f3f7682c062c4aRobert Greenwalt#endif 131