1/*- 2 * Copyright (c) 1980, 1983, 1988, 1993 3 * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * - 34 * Portions Copyright (c) 1993 by Digital Equipment Corporation. 35 * 36 * Permission to use, copy, modify, and distribute this software for any 37 * purpose with or without fee is hereby granted, provided that the above 38 * copyright notice and this permission notice appear in all copies, and that 39 * the name of Digital Equipment Corporation not be used in advertising or 40 * publicity pertaining to distribution of the document or software without 41 * specific, written prior permission. 42 * 43 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 44 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 45 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 46 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 47 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 48 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 49 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 50 * SOFTWARE. 51 * - 52 * --Copyright-- 53 */ 54 55/* 56 * @(#)netdb.h 8.1 (Berkeley) 6/2/93 57 * From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $ 58 * $FreeBSD: /repoman/r/ncvs/src/include/netdb.h,v 1.41 2006/04/15 16:20:26 ume Exp $ 59 */ 60 61#ifndef _NETDB_H_ 62#define _NETDB_H_ 63 64#include <sys/cdefs.h> 65#include <sys/types.h> 66#include <sys/socket.h> 67 68#ifndef _PATH_HEQUIV 69# define _PATH_HEQUIV "/system/etc/hosts.equiv" 70#endif 71#define _PATH_HOSTS "/system/etc/hosts" 72#define _PATH_NETWORKS "/system/etc/networks" 73#define _PATH_PROTOCOLS "/system/etc/protocols" 74#define _PATH_SERVICES "/system/etc/services" 75 76/* 77 * Structures returned by network data base library. All addresses are 78 * supplied in host order, and returned in network order (suitable for 79 * use in system calls). 80 */ 81struct hostent { 82 char *h_name; /* official name of host */ 83 char **h_aliases; /* alias list */ 84 int h_addrtype; /* host address type */ 85 int h_length; /* length of address */ 86 char **h_addr_list; /* list of addresses from name server */ 87#define h_addr h_addr_list[0] /* address, for backward compatibility */ 88}; 89 90struct netent { 91 char *n_name; /* official name of net */ 92 char **n_aliases; /* alias list */ 93 int n_addrtype; /* net address type */ 94 uint32_t n_net; /* network # */ 95}; 96 97struct servent { 98 char *s_name; /* official service name */ 99 char **s_aliases; /* alias list */ 100 int s_port; /* port # */ 101 char *s_proto; /* protocol to use */ 102}; 103 104struct protoent { 105 char *p_name; /* official protocol name */ 106 char **p_aliases; /* alias list */ 107 int p_proto; /* protocol # */ 108}; 109 110struct addrinfo { 111 int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ 112 int ai_family; /* PF_xxx */ 113 int ai_socktype; /* SOCK_xxx */ 114 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 115 socklen_t ai_addrlen; /* length of ai_addr */ 116 char *ai_canonname; /* canonical name for hostname */ 117 struct sockaddr *ai_addr; /* binary address */ 118 struct addrinfo *ai_next; /* next structure in linked list */ 119}; 120 121/* 122 * Error return codes from gethostbyname() and gethostbyaddr() 123 * (left in h_errno). 124 */ 125 126#define NETDB_INTERNAL -1 /* see errno */ 127#define NETDB_SUCCESS 0 /* no problem */ 128#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ 129#define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */ 130#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 131#define NO_DATA 4 /* Valid name, no data record of requested type */ 132#define NO_ADDRESS NO_DATA /* no address, look for MX record */ 133 134/* 135 * Error return codes from getaddrinfo() 136 */ 137#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 138#define EAI_AGAIN 2 /* temporary failure in name resolution */ 139#define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 140#define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 141#define EAI_FAMILY 5 /* ai_family not supported */ 142#define EAI_MEMORY 6 /* memory allocation failure */ 143#define EAI_NODATA 7 /* no address associated with hostname */ 144#define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 145#define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 146#define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 147#define EAI_SYSTEM 11 /* system error returned in errno */ 148#define EAI_BADHINTS 12 /* invalid value for hints */ 149#define EAI_PROTOCOL 13 /* resolved protocol is unknown */ 150#define EAI_OVERFLOW 14 /* argument buffer overflow */ 151#define EAI_MAX 15 152 153/* 154 * Flag values for getaddrinfo() 155 */ 156#define AI_PASSIVE 0x00000001 /* get address to use bind() */ 157#define AI_CANONNAME 0x00000002 /* fill ai_canonname */ 158#define AI_NUMERICHOST 0x00000004 /* prevent host name resolution */ 159#define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */ 160/* valid flags for addrinfo (not a standard def, apps should not use it) */ 161#define AI_MASK \ 162 (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \ 163 AI_ADDRCONFIG) 164 165#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */ 166#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */ 167#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ 168#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */ 169/* special recommended flags for getipnodebyname */ 170#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG) 171 172/* 173 * Constants for getnameinfo() 174 */ 175#define NI_MAXHOST 1025 176#define NI_MAXSERV 32 177 178/* 179 * Flag values for getnameinfo() 180 */ 181#define NI_NOFQDN 0x00000001 182#define NI_NUMERICHOST 0x00000002 183#define NI_NAMEREQD 0x00000004 184#define NI_NUMERICSERV 0x00000008 185#define NI_DGRAM 0x00000010 186#if 0 /* obsolete */ 187#define NI_WITHSCOPEID 0x00000020 188#endif 189 190/* 191 * Scope delimit character 192 */ 193#define SCOPE_DELIMITER '%' 194 195#define IPPORT_RESERVED 1024 196 197__BEGIN_DECLS 198 199/* BIONIC-BEGIN */ 200#define h_errno (*__get_h_errno()) 201int* __get_h_errno(void); 202/* BIONIC-END */ 203void endservent(void); 204struct hostent* gethostbyaddr(const void*, socklen_t, int); 205int gethostbyaddr_r(const void*, socklen_t, int, struct hostent*, char*, size_t, struct hostent**, 206 int*) __INTRODUCED_IN(23); 207struct hostent* gethostbyname(const char*); 208int gethostbyname_r(const char*, struct hostent*, char*, size_t, struct hostent**, int*); 209struct hostent* gethostbyname2(const char*, int); 210int gethostbyname2_r(const char*, int, struct hostent*, char*, size_t, struct hostent**, int*) 211 __INTRODUCED_IN(23); 212struct hostent* gethostent(void); 213struct netent* getnetbyaddr(uint32_t, int); 214struct netent* getnetbyname(const char*); 215struct protoent* getprotobyname(const char*); 216struct protoent* getprotobynumber(int); 217struct servent* getservbyname(const char*, const char*); 218struct servent* getservbyport(int, const char*); 219struct servent* getservent(void); 220void herror(const char*); 221const char* hstrerror(int); 222 223int getaddrinfo(const char*, const char*, const struct addrinfo*, struct addrinfo**); 224/* POSIX getnameinfo uses socklen_t, not size_t, but LP64 sizeof(socklen_t) != sizeof(size_t). */ 225int getnameinfo(const struct sockaddr*, socklen_t, char*, size_t, char*, size_t, int); 226void freeaddrinfo(struct addrinfo*); 227const char* gai_strerror(int); 228void setservent(int); 229 230__END_DECLS 231 232#endif /* !_NETDB_H_ */ 233