1/* 2 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#ifndef ADDR_INFO_H 31#define ADDR_INFO_H 32 33/* special compatibility hack */ 34#undef EAI_ADDRFAMILY 35#undef EAI_AGAIN 36#undef EAI_BADFLAGS 37#undef EAI_FAIL 38#undef EAI_FAMILY 39#undef EAI_MEMORY 40#undef EAI_NODATA 41#undef EAI_NONAME 42#undef EAI_SERVICE 43#undef EAI_SOCKTYPE 44#undef EAI_SYSTEM 45#undef EAI_BADHINTS 46#undef EAI_PROTOCOL 47#undef EAI_MAX 48 49#undef AI_PASSIVE 50#undef AI_CANONNAME 51#undef AI_NUMERICHOST 52#undef AI_NUMERICSERV 53#undef AI_ALL 54#undef AI_ADDRCONFIG 55#undef AI_V4MAPPED 56#undef AI_DEFAULT 57 58#undef NI_NOFQDN 59#undef NI_NUMERICHOST 60#undef NI_NAMEREQD 61#undef NI_NUMERICSERV 62#undef NI_DGRAM 63 64#ifndef __P 65# ifdef HAVE_PROTOTYPES 66# define __P(args) args 67# else 68# define __P(args) () 69# endif 70#endif 71 72/* special compatibility hack -- end*/ 73 74 75/* 76 * Error return codes from getaddrinfo() 77 */ 78#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 79#define EAI_AGAIN 2 /* temporary failure in name resolution */ 80#define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 81#define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 82#define EAI_FAMILY 5 /* ai_family not supported */ 83#define EAI_MEMORY 6 /* memory allocation failure */ 84#define EAI_NODATA 7 /* no address associated with hostname */ 85#define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 86#define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 87#define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 88#define EAI_SYSTEM 11 /* system error returned in errno */ 89#define EAI_BADHINTS 12 90#define EAI_PROTOCOL 13 91#define EAI_MAX 14 92 93/* 94 * Flag values for getaddrinfo() 95 */ 96#define AI_PASSIVE 0x00000001 /* get address to use bind() */ 97#define AI_CANONNAME 0x00000002 /* fill ai_canonname */ 98#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */ 99#define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */ 100/* valid flags for addrinfo */ 101#ifndef __HAIKU__ 102#undef AI_MASK 103#define AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV) 104#endif 105 106#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */ 107#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */ 108#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ 109#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */ 110/* special recommended flags for getipnodebyname */ 111#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG) 112 113/* 114 * Constants for getnameinfo() 115 */ 116#ifndef NI_MAXHOST 117#define NI_MAXHOST 1025 118#define NI_MAXSERV 32 119#endif 120 121/* 122 * Flag values for getnameinfo() 123 */ 124#define NI_NOFQDN 0x00000001 125#define NI_NUMERICHOST 0x00000002 126#define NI_NAMEREQD 0x00000004 127#define NI_NUMERICSERV 0x00000008 128#define NI_DGRAM 0x00000010 129 130#ifndef HAVE_TYPE_STRUCT_ADDRINFO 131struct addrinfo { 132 int ai_flags; /* AI_PASSIVE, AI_CANONNAME */ 133 int ai_family; /* PF_xxx */ 134 int ai_socktype; /* SOCK_xxx */ 135 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 136 size_t ai_addrlen; /* length of ai_addr */ 137 char *ai_canonname; /* canonical name for hostname */ 138 struct sockaddr *ai_addr; /* binary address */ 139 struct addrinfo *ai_next; /* next structure in linked list */ 140}; 141#endif 142 143#ifndef HAVE_GETADDRINFO 144#undef getaddrinfo 145#define getaddrinfo getaddrinfo__compat 146#endif 147#ifndef HAVE_GETNAMEINFO 148#undef getnameinfo 149#define getnameinfo getnameinfo__compat 150#endif 151#ifndef HAVE_FREEHOSTENT 152#undef freehostent 153#define freehostent freehostent__compat 154#endif 155#ifndef HAVE_FREEADDRINFO 156#undef freeaddrinfo 157#define freeaddrinfo freeaddrinfo__compat 158#endif 159 160extern int getaddrinfo __P(( 161 const char *hostname, const char *servname, 162 const struct addrinfo *hints, 163 struct addrinfo **res)); 164 165extern int getnameinfo __P(( 166 const struct sockaddr *sa, 167 socklen_t salen, 168 char *host, 169 socklen_t hostlen, 170 char *serv, 171 socklen_t servlen, 172 int flags)); 173 174extern void freehostent __P((struct hostent *)); 175extern void freeaddrinfo __P((struct addrinfo *)); 176extern 177#ifdef GAI_STRERROR_CONST 178const 179#endif 180char *gai_strerror __P((int)); 181 182/* In case there is no definition of offsetof() provided - though any proper 183Standard C system should have one. */ 184 185#ifndef offsetof 186#define offsetof(p_type,field) ((size_t)&(((p_type *)0)->field)) 187#endif 188 189#endif 190