netdb.h revision 1.38
1 /* $NetBSD: netdb.h,v 1.38 2004/05/08 18:55:23 kleink Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1980, 1983, 1988, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)netdb.h 8.1 (Berkeley) 6/2/93 61 * Id: netdb.h,v 4.9.1.2 1993/05/17 09:59:01 vixie Exp 62 * - 63 * Portions Copyright (c) 1993 by Digital Equipment Corporation. 64 * 65 * Permission to use, copy, modify, and distribute this software for any 66 * purpose with or without fee is hereby granted, provided that the above 67 * copyright notice and this permission notice appear in all copies, and that 68 * the name of Digital Equipment Corporation not be used in advertising or 69 * publicity pertaining to distribution of the document or software without 70 * specific, written prior permission. 71 * 72 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 73 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 74 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 75 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 76 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 77 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 78 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 79 * SOFTWARE. 80 * - 81 * --Copyright-- 82 */ 83 84 #ifndef _NETDB_H_ 85 #define _NETDB_H_ 86 87 #include <machine/ansi.h> 88 #include <machine/endian_machdep.h> 89 #include <sys/ansi.h> 90 #include <sys/cdefs.h> 91 #include <sys/featuretest.h> 92 #include <inttypes.h> 93 94 /* 95 * Data types 96 */ 97 #ifndef socklen_t 98 typedef __socklen_t socklen_t; 99 #define socklen_t __socklen_t 100 #endif 101 102 #ifdef _BSD_SIZE_T_ 103 typedef _BSD_SIZE_T_ size_t; 104 #undef _BSD_SIZE_T_ 105 #endif 106 107 #if defined(_NETBSD_SOURCE) 108 #define _PATH_HEQUIV "/etc/hosts.equiv" 109 #define _PATH_HOSTS "/etc/hosts" 110 #define _PATH_NETWORKS "/etc/networks" 111 #define _PATH_PROTOCOLS "/etc/protocols" 112 #define _PATH_SERVICES "/etc/services" 113 #endif 114 115 extern int h_errno; 116 117 /* 118 * Structures returned by network data base library. All addresses are 119 * supplied in host order, and returned in network order (suitable for 120 * use in system calls). 121 */ 122 struct hostent { 123 char *h_name; /* official name of host */ 124 char **h_aliases; /* alias list */ 125 int h_addrtype; /* host address type */ 126 int h_length; /* length of address */ 127 char **h_addr_list; /* list of addresses from name server */ 128 #define h_addr h_addr_list[0] /* address, for backward compatibility */ 129 }; 130 131 /* 132 * Assumption here is that a network number 133 * fits in an unsigned long -- probably a poor one. 134 */ 135 struct netent { 136 char *n_name; /* official name of net */ 137 char **n_aliases; /* alias list */ 138 int n_addrtype; /* net address type */ 139 #if (defined(__sparc__) && defined(_LP64)) || \ 140 (defined(__sh__) && defined(_LP64) && (_BYTE_ORDER == _BIG_ENDIAN)) 141 int __n_pad0; /* ABI compatibility */ 142 #endif 143 uint32_t n_net; /* network # */ 144 #if defined(__alpha__) || (defined(__i386__) && defined(_LP64)) || \ 145 (defined(__sh__) && defined(_LP64) && (_BYTE_ORDER == _LITTLE_ENDIAN)) 146 int __n_pad0; /* ABI compatibility */ 147 #endif 148 }; 149 150 struct servent { 151 char *s_name; /* official service name */ 152 char **s_aliases; /* alias list */ 153 int s_port; /* port # */ 154 char *s_proto; /* protocol to use */ 155 }; 156 157 struct protoent { 158 char *p_name; /* official protocol name */ 159 char **p_aliases; /* alias list */ 160 int p_proto; /* protocol # */ 161 }; 162 163 /* 164 * Note: ai_addrlen used to be a size_t, per RFC 2553. 165 * In XNS5.2, and subsequently in POSIX-2001 and 166 * draft-ietf-ipngwg-rfc2553bis-02.txt it was changed to a socklen_t. 167 * To accomodate for this while preserving binary compatibility with the 168 * old interface, we prepend or append 32 bits of padding, depending on 169 * the (LP64) architecture's endianness. 170 * 171 * This should be deleted the next time the libc major number is 172 * incremented. 173 */ 174 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \ 175 defined(_NETBSD_SOURCE) 176 struct addrinfo { 177 int ai_flags; /* AI_xxx */ 178 int ai_family; /* PF_xxx */ 179 int ai_socktype; /* SOCK_xxx */ 180 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 181 #if defined(__sparc__) && defined(_LP64) 182 int __ai_pad0; /* ABI compatibility */ 183 #endif 184 socklen_t ai_addrlen; /* length of ai_addr */ 185 #if defined(__alpha__) || (defined(__i386__) && defined(_LP64)) 186 int __ai_pad0; /* ABI compatbility */ 187 #endif 188 char *ai_canonname; /* canonical name for hostname */ 189 struct sockaddr *ai_addr; /* binary address */ 190 struct addrinfo *ai_next; /* next structure in linked list */ 191 }; 192 #endif 193 194 /* 195 * Error return codes from gethostbyname() and gethostbyaddr() 196 * (left in extern int h_errno). 197 */ 198 199 #if defined(_NETBSD_SOURCE) 200 #define NETDB_INTERNAL -1 /* see errno */ 201 #define NETDB_SUCCESS 0 /* no problem */ 202 #endif 203 #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ 204 #define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */ 205 #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 206 #define NO_DATA 4 /* Valid name, no data record of requested type */ 207 #if defined(_NETBSD_SOURCE) 208 #define NO_ADDRESS NO_DATA /* no address, look for MX record */ 209 #endif 210 211 /* 212 * Error return codes from getaddrinfo() 213 */ 214 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \ 215 defined(_NETBSD_SOURCE) 216 #define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 217 #define EAI_AGAIN 2 /* temporary failure in name resolution */ 218 #define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 219 #define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 220 #define EAI_FAMILY 5 /* ai_family not supported */ 221 #define EAI_MEMORY 6 /* memory allocation failure */ 222 #define EAI_NODATA 7 /* no address associated with hostname */ 223 #define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 224 #define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 225 #define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 226 #define EAI_SYSTEM 11 /* system error returned in errno */ 227 #define EAI_BADHINTS 12 228 #define EAI_PROTOCOL 13 229 #define EAI_MAX 14 230 #endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE >= 520 || _NETBSD_SOURCE */ 231 232 /* 233 * Flag values for getaddrinfo() 234 */ 235 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \ 236 defined(_NETBSD_SOURCE) 237 #define AI_PASSIVE 0x00000001 /* get address to use bind() */ 238 #define AI_CANONNAME 0x00000002 /* fill ai_canonname */ 239 #define AI_NUMERICHOST 0x00000004 /* prevent host name resolution */ 240 #define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */ 241 /* valid flags for addrinfo (not a standard def, apps should not use it) */ 242 #define AI_MASK \ 243 (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV) 244 #endif 245 246 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \ 247 defined(_NETBSD_SOURCE) 248 /* 249 * Constants for getnameinfo() 250 */ 251 #if defined(_NETBSD_SOURCE) 252 #define NI_MAXHOST 1025 253 #define NI_MAXSERV 32 254 #endif 255 256 /* 257 * Flag values for getnameinfo() 258 */ 259 #define NI_NOFQDN 0x00000001 260 #define NI_NUMERICHOST 0x00000002 261 #define NI_NAMEREQD 0x00000004 262 #define NI_NUMERICSERV 0x00000008 263 #define NI_DGRAM 0x00000010 264 #if defined(_NETBSD_SOURCE) 265 #define NI_WITHSCOPEID 0x00000020 /*KAME extension*/ 266 #endif 267 268 /* 269 * Scope delimit character 270 */ 271 #if defined(_NETBSD_SOURCE) 272 #define SCOPE_DELIMITER '%' /*KAME extension*/ 273 #endif 274 #endif /* (_POSIX_C_SOURCE - 0) >= 200112L || ... */ 275 276 __BEGIN_DECLS 277 void endhostent __P((void)); 278 void endnetent __P((void)); 279 void endprotoent __P((void)); 280 void endservent __P((void)); 281 #if (_XOPEN_SOURCE - 0) >= 500 && (_XOPEN_SOURCE - 0) < 600 || \ 282 defined(_NETBSD_SOURCE) 283 void freehostent __P((struct hostent *)); 284 #endif 285 struct hostent *gethostbyaddr __P((const char *, socklen_t, int)); 286 struct hostent *gethostbyname __P((const char *)); 287 #if defined(_NETBSD_SOURCE) 288 struct hostent *gethostbyname2 __P((const char *, int)); 289 #endif 290 struct hostent *gethostent __P((void)); 291 #if (_XOPEN_SOURCE - 0) >= 520 && (_XOPEN_SOURCE - 0) < 600 || \ 292 defined(_NETBSD_SOURCE) 293 #if 0 /* we do not ship these */ 294 struct hostent *getipnodebyaddr __P((const void *, size_t, int, int *)); 295 struct hostent *getipnodebyname __P((const char *, int, int, int *)); 296 #endif 297 #endif 298 struct netent *getnetbyaddr __P((uint32_t, int)); 299 struct netent *getnetbyname __P((const char *)); 300 struct netent *getnetent __P((void)); 301 struct protoent *getprotobyname __P((const char *)); 302 struct protoent *getprotobynumber __P((int)); 303 struct protoent *getprotoent __P((void)); 304 struct servent *getservbyname __P((const char *, const char *)); 305 struct servent *getservbyport __P((int, const char *)); 306 struct servent *getservent __P((void)); 307 #if defined(_NETBSD_SOURCE) 308 void herror __P((const char *)); 309 const char *hstrerror __P((int)); 310 #endif 311 void sethostent __P((int)); 312 #if defined(_NETBSD_SOURCE) 313 /* void sethostfile __P((const char *)); */ 314 #endif 315 void setnetent __P((int)); 316 void setprotoent __P((int)); 317 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \ 318 defined(_NETBSD_SOURCE) 319 int getaddrinfo __P((const char *, const char *, 320 const struct addrinfo *, struct addrinfo **)); 321 int getnameinfo __P((const struct sockaddr *, socklen_t, char *, 322 socklen_t, char *, socklen_t, int)); 323 void freeaddrinfo __P((struct addrinfo *)); 324 char *gai_strerror __P((int)); 325 #endif 326 void setservent __P((int)); 327 328 #if defined(_NETBSD_SOURCE) && defined(_LIBC) 329 330 struct protoent_data { 331 FILE *fp; 332 struct protoent proto; 333 char **aliases; 334 size_t maxaliases; 335 int stayopen; 336 char *line; 337 void *dummy; 338 }; 339 340 struct protoent *getprotoent_r __P((struct protoent *, struct protoent_data *)); 341 struct protoent *getprotobyname_r __P((const char *, 342 struct protoent *, struct protoent_data *)); 343 struct protoent *getprotobynumber_r __P((int, 344 struct protoent *, struct protoent_data *)); 345 struct protoent *getprotoent_r __P((struct protoent *, struct protoent_data *)); 346 void setprotoent_r __P((int, struct protoent_data *)); 347 void endprotoent_r __P((struct protoent_data *)); 348 349 struct servent_data { 350 FILE *fp; 351 struct servent serv; 352 char **aliases; 353 size_t maxaliases; 354 int stayopen; 355 char *line; 356 void *dummy; 357 }; 358 359 struct servent *getservent_r __P((struct servent *, struct servent_data *)); 360 struct servent *getservbyname_r __P((const char *, const char *, 361 struct servent *, struct servent_data *)); 362 struct servent *getservbyport_r __P((int, const char *, 363 struct servent *, struct servent_data *)); 364 void setservent_r __P((int, struct servent_data *)); 365 void endservent_r __P((struct servent_data *)); 366 367 #endif /* _NETBSD_SOURCE && _LIBC */ 368 __END_DECLS 369 370 #endif /* !_NETDB_H_ */ 371
Indexes created Mon Sep 29 15:09:53 GMT 2025