netdb.h revision 203964
11539Srgrimes/*- 21539Srgrimes * Copyright (c) 1980, 1983, 1988, 1993 31539Srgrimes * The Regents of the University of California. All rights reserved. 41539Srgrimes * 51539Srgrimes * Redistribution and use in source and binary forms, with or without 61539Srgrimes * modification, are permitted provided that the following conditions 71539Srgrimes * are met: 81539Srgrimes * 1. Redistributions of source code must retain the above copyright 91539Srgrimes * notice, this list of conditions and the following disclaimer. 101539Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111539Srgrimes * notice, this list of conditions and the following disclaimer in the 121539Srgrimes * documentation and/or other materials provided with the distribution. 13203964Simp * 3. Neither the name of the University nor the names of its contributors 141539Srgrimes * may be used to endorse or promote products derived from this software 151539Srgrimes * without specific prior written permission. 161539Srgrimes * 171539Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181539Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191539Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201539Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211539Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221539Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231539Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241539Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251539Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261539Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271539Srgrimes * SUCH DAMAGE. 281539Srgrimes * 291539Srgrimes * - 301539Srgrimes * Portions Copyright (c) 1993 by Digital Equipment Corporation. 318858Srgrimes * 321539Srgrimes * Permission to use, copy, modify, and distribute this software for any 331539Srgrimes * purpose with or without fee is hereby granted, provided that the above 341539Srgrimes * copyright notice and this permission notice appear in all copies, and that 351539Srgrimes * the name of Digital Equipment Corporation not be used in advertising or 361539Srgrimes * publicity pertaining to distribution of the document or software without 371539Srgrimes * specific, written prior permission. 388858Srgrimes * 391539Srgrimes * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 401539Srgrimes * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 411539Srgrimes * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 421539Srgrimes * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 431539Srgrimes * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 441539Srgrimes * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 451539Srgrimes * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 461539Srgrimes * SOFTWARE. 471539Srgrimes * - 481539Srgrimes * --Copyright-- 491539Srgrimes */ 501539Srgrimes 5136888Speter/* 5236888Speter * @(#)netdb.h 8.1 (Berkeley) 6/2/93 5336888Speter * From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $ 5450473Speter * $FreeBSD: head/include/netdb.h 203964 2010-02-16 19:39:50Z imp $ 5536888Speter */ 5636888Speter 571539Srgrimes#ifndef _NETDB_H_ 581539Srgrimes#define _NETDB_H_ 591539Srgrimes 6084463Sbde#include <sys/cdefs.h> 61102227Smike#include <sys/_types.h> 6221055Speter 63102227Smike#ifndef _SIZE_T_DECLARED 64102227Smiketypedef __size_t size_t; 65102227Smike#define _SIZE_T_DECLARED 6672510Sume#endif 6772510Sume 68102227Smike#ifndef _SOCKLEN_T_DECLARED 69102227Smiketypedef __socklen_t socklen_t; 70102227Smike#define _SOCKLEN_T_DECLARED 7184463Sbde#endif 7284463Sbde 73146244Sume#ifndef _UINT32_T_DECLARED 74146244Sumetypedef __uint32_t uint32_t; 75146244Sume#define _UINT32_T_DECLARED 76146244Sume#endif 77146244Sume 7836888Speter#ifndef _PATH_HEQUIV 7936888Speter# define _PATH_HEQUIV "/etc/hosts.equiv" 8036888Speter#endif 811539Srgrimes#define _PATH_HOSTS "/etc/hosts" 821539Srgrimes#define _PATH_NETWORKS "/etc/networks" 831539Srgrimes#define _PATH_PROTOCOLS "/etc/protocols" 841539Srgrimes#define _PATH_SERVICES "/etc/services" 851539Srgrimes 86156960Sume#define h_errno (*__h_errno()) 8710132Speter 881539Srgrimes/* 891539Srgrimes * Structures returned by network data base library. All addresses are 901539Srgrimes * supplied in host order, and returned in network order (suitable for 911539Srgrimes * use in system calls). 921539Srgrimes */ 9383047Sobrienstruct hostent { 941539Srgrimes char *h_name; /* official name of host */ 951539Srgrimes char **h_aliases; /* alias list */ 961539Srgrimes int h_addrtype; /* host address type */ 971539Srgrimes int h_length; /* length of address */ 981539Srgrimes char **h_addr_list; /* list of addresses from name server */ 9913771Smpp#define h_addr h_addr_list[0] /* address, for backward compatibility */ 1001539Srgrimes}; 1011539Srgrimes 10283047Sobrienstruct netent { 1031539Srgrimes char *n_name; /* official name of net */ 1041539Srgrimes char **n_aliases; /* alias list */ 1051539Srgrimes int n_addrtype; /* net address type */ 106146244Sume uint32_t n_net; /* network # */ 1071539Srgrimes}; 1081539Srgrimes 10983047Sobrienstruct servent { 1101539Srgrimes char *s_name; /* official service name */ 1111539Srgrimes char **s_aliases; /* alias list */ 1121539Srgrimes int s_port; /* port # */ 1131539Srgrimes char *s_proto; /* protocol to use */ 1141539Srgrimes}; 1151539Srgrimes 11683047Sobrienstruct protoent { 1171539Srgrimes char *p_name; /* official protocol name */ 1181539Srgrimes char **p_aliases; /* alias list */ 1191539Srgrimes int p_proto; /* protocol # */ 1201539Srgrimes}; 1211539Srgrimes 12255163Sshinstruct addrinfo { 12355163Sshin int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ 12455163Sshin int ai_family; /* PF_xxx */ 12555163Sshin int ai_socktype; /* SOCK_xxx */ 12655163Sshin int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 127146244Sume socklen_t ai_addrlen; /* length of ai_addr */ 12855163Sshin char *ai_canonname; /* canonical name for hostname */ 12955163Sshin struct sockaddr *ai_addr; /* binary address */ 13055163Sshin struct addrinfo *ai_next; /* next structure in linked list */ 13155163Sshin}; 13255163Sshin 1331539Srgrimes/* 1341539Srgrimes * Error return codes from gethostbyname() and gethostbyaddr() 135126243Sgreen * (left in h_errno). 1361539Srgrimes */ 1371539Srgrimes 13810132Speter#define NETDB_INTERNAL -1 /* see errno */ 13910132Speter#define NETDB_SUCCESS 0 /* no problem */ 1401539Srgrimes#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ 14113771Smpp#define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */ 1421539Srgrimes#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 1431539Srgrimes#define NO_DATA 4 /* Valid name, no data record of requested type */ 1441539Srgrimes#define NO_ADDRESS NO_DATA /* no address, look for MX record */ 1451539Srgrimes 14655163Sshin/* 14755163Sshin * Error return codes from getaddrinfo() 14855163Sshin */ 149121430Sume#if 0 150121430Sume/* obsoleted */ 15155163Sshin#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 152121430Sume#endif 15355163Sshin#define EAI_AGAIN 2 /* temporary failure in name resolution */ 15455163Sshin#define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 15555163Sshin#define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 15655163Sshin#define EAI_FAMILY 5 /* ai_family not supported */ 15755163Sshin#define EAI_MEMORY 6 /* memory allocation failure */ 158121430Sume#if 0 159121430Sume/* obsoleted */ 16055163Sshin#define EAI_NODATA 7 /* no address associated with hostname */ 161121430Sume#endif 16255163Sshin#define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 16355163Sshin#define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 16455163Sshin#define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 16555163Sshin#define EAI_SYSTEM 11 /* system error returned in errno */ 166158790Sume#define EAI_BADHINTS 12 /* invalid value for hints */ 167158790Sume#define EAI_PROTOCOL 13 /* resolved protocol is unknown */ 168158790Sume#define EAI_OVERFLOW 14 /* argument buffer overflow */ 169158790Sume#define EAI_MAX 15 17055163Sshin 17155163Sshin/* 17255163Sshin * Flag values for getaddrinfo() 17355163Sshin */ 17455163Sshin#define AI_PASSIVE 0x00000001 /* get address to use bind() */ 17555163Sshin#define AI_CANONNAME 0x00000002 /* fill ai_canonname */ 176140908Sume#define AI_NUMERICHOST 0x00000004 /* prevent host name resolution */ 177140908Sume#define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */ 178140908Sume/* valid flags for addrinfo (not a standard def, apps should not use it) */ 17972693Sume#define AI_MASK \ 180140908Sume (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \ 181140908Sume AI_ADDRCONFIG) 18255163Sshin 18355163Sshin#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */ 18455163Sshin#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */ 18555163Sshin#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ 18655163Sshin#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */ 18755163Sshin/* special recommended flags for getipnodebyname */ 18855163Sshin#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG) 18955163Sshin 19055163Sshin/* 19155163Sshin * Constants for getnameinfo() 19255163Sshin */ 19355163Sshin#define NI_MAXHOST 1025 19455163Sshin#define NI_MAXSERV 32 19555163Sshin 19655163Sshin/* 19755163Sshin * Flag values for getnameinfo() 19855163Sshin */ 19955163Sshin#define NI_NOFQDN 0x00000001 20055163Sshin#define NI_NUMERICHOST 0x00000002 20155163Sshin#define NI_NAMEREQD 0x00000004 20255163Sshin#define NI_NUMERICSERV 0x00000008 20355163Sshin#define NI_DGRAM 0x00000010 204146690Sume#if 0 /* obsolete */ 20555163Sshin#define NI_WITHSCOPEID 0x00000020 206121316Sume#endif 20755163Sshin 20855163Sshin/* 20955163Sshin * Scope delimit character 21055163Sshin */ 21157033Sshin#define SCOPE_DELIMITER '%' 21255163Sshin 2131539Srgrimes__BEGIN_DECLS 21493032Simpvoid endhostent(void); 21593032Simpvoid endnetent(void); 21693032Simpvoid endprotoent(void); 21793032Simpvoid endservent(void); 218189826Sdas#if __BSD_VISIBLE || (__POSIX_VISIBLE && __POSIX_VISIBLE <= 200112) 219189826Sdasstruct hostent *gethostbyaddr(const void *, socklen_t, int); 220189826Sdasstruct hostent *gethostbyname(const char *); 221189826Sdas#endif 222189826Sdasstruct hostent *gethostent(void); 223189826Sdasstruct netent *getnetbyaddr(uint32_t, int); 224189826Sdasstruct netent *getnetbyname(const char *); 225189826Sdasstruct netent *getnetent(void); 226189826Sdasstruct protoent *getprotobyname(const char *); 227189826Sdasstruct protoent *getprotobynumber(int); 228189826Sdasstruct protoent *getprotoent(void); 229189826Sdasstruct servent *getservbyname(const char *, const char *); 230189826Sdasstruct servent *getservbyport(int, const char *); 231189826Sdasstruct servent *getservent(void); 232189826Sdasvoid sethostent(int); 233189826Sdas/* void sethostfile(const char *); */ 234189826Sdasvoid setnetent(int); 235189826Sdasvoid setprotoent(int); 236189826Sdasint getaddrinfo(const char *, const char *, 237189826Sdas const struct addrinfo *, struct addrinfo **); 238189826Sdasint getnameinfo(const struct sockaddr *, socklen_t, char *, 239189826Sdas size_t, char *, size_t, int); 240189826Sdasvoid freeaddrinfo(struct addrinfo *); 241189826Sdasconst char *gai_strerror(int); 242189826Sdasvoid setservent(int); 243189826Sdas 244189826Sdas#if __BSD_VISIBLE 245189826Sdasvoid endnetgrent(void); 24693032Simpvoid freehostent(struct hostent *); 247158477Sumeint gethostbyaddr_r(const void *, socklen_t, int, struct hostent *, 248158477Sume char *, size_t, struct hostent **, int *); 249157779Sumeint gethostbyname_r(const char *, struct hostent *, char *, size_t, 250157779Sume struct hostent **, int *); 25193032Simpstruct hostent *gethostbyname2(const char *, int); 252157779Sumeint gethostbyname2_r(const char *, int, struct hostent *, char *, 253157779Sume size_t, struct hostent **, int *); 254157779Sumeint gethostent_r(struct hostent *, char *, size_t, 255157779Sume struct hostent **, int *); 25693032Simpstruct hostent *getipnodebyaddr(const void *, size_t, int, int *); 25793032Simpstruct hostent *getipnodebyname(const char *, int, int, int *); 258157779Sumeint getnetbyaddr_r(uint32_t, int, struct netent *, char *, size_t, 259157779Sume struct netent**, int *); 260157779Sumeint getnetbyname_r(const char *, struct netent *, char *, size_t, 261157779Sume struct netent **, int *); 262157779Sumeint getnetent_r(struct netent *, char *, size_t, struct netent **, 263157779Sume int *); 26493032Simpint getnetgrent(char **, char **, char **); 265157779Sumeint getprotobyname_r(const char *, struct protoent *, char *, 266157779Sume size_t, struct protoent **); 267157779Sumeint getprotobynumber_r(int, struct protoent *, char *, size_t, 268157779Sume struct protoent **); 269157779Sumeint getprotoent_r(struct protoent *, char *, size_t, 270157779Sume struct protoent **); 271157779Sumeint getservbyname_r(const char *, const char *, struct servent *, 272157779Sume char *, size_t, struct servent **); 273157779Sumeint getservbyport_r(int, const char *, struct servent *, char *, 274157779Sume size_t, struct servent **); 275157779Sumeint getservent_r(struct servent *, char *, size_t, 276157779Sume struct servent **); 27793032Simpvoid herror(const char *); 27893032Simp__const char *hstrerror(int); 27993032Simpint innetgr(const char *, const char *, const char *, const char *); 28093032Simpvoid setnetgrent(const char *); 281189826Sdas#endif 28217902Speter 283189826Sdas 28417902Speter/* 28517902Speter * PRIVATE functions specific to the FreeBSD implementation 28617902Speter */ 28717902Speter 28817902Speter/* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */ 289156960Sumeint * __h_errno(void); 2901539Srgrimes__END_DECLS 2911539Srgrimes 2921539Srgrimes#endif /* !_NETDB_H_ */ 293