1 /* 2 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 7 /* All Rights Reserved */ 8 9 /* 10 * BIND 4.9.3: 11 * 12 * Copyright (c) 1980, 1983, 1988, 1993 13 * The Regents of the University of California. All rights reserved. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 3. All advertising materials mentioning features or use of this software 24 * must display the following acknowledgement: 25 * This product includes software developed by the University of 26 * California, Berkeley and its contributors. 27 * 4. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 * - 43 * Portions Copyright (c) 1993 by Digital Equipment Corporation. 44 * 45 * Permission to use, copy, modify, and distribute this software for any 46 * purpose with or without fee is hereby granted, provided that the above 47 * copyright notice and this permission notice appear in all copies, and that 48 * the name of Digital Equipment Corporation not be used in advertising or 49 * publicity pertaining to distribution of the document or software without 50 * specific, written prior permission. 51 * 52 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 53 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 54 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 55 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 56 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 57 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 58 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 59 * SOFTWARE. 60 * --Copyright-- 61 * 62 * End BIND 4.9.3 63 */ 64 65 /* 66 * Structures returned by network data base library. 67 * All addresses are supplied in host order, and 68 * returned in network order (suitable for use in system calls). 69 */ 70 71 #ifndef _NETDB_H 72 #define _NETDB_H 73 74 #pragma ident "%Z%%M% %I% %E% SMI" 75 76 #include <sys/types.h> 77 #include <netinet/in.h> 78 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) 79 #include <sys/socket.h> 80 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */ 81 #include <sys/feature_tests.h> 82 83 #ifdef __cplusplus 84 extern "C" { 85 #endif 86 87 #define _PATH_HEQUIV "/etc/hosts.equiv" 88 #define _PATH_HOSTS "/etc/hosts" 89 #define _PATH_IPNODES "/etc/inet/ipnodes" 90 #define _PATH_IPSECALGS "/etc/inet/ipsecalgs" 91 #define _PATH_NETMASKS "/etc/netmasks" 92 #define _PATH_NETWORKS "/etc/networks" 93 #define _PATH_PROTOCOLS "/etc/protocols" 94 #define _PATH_SERVICES "/etc/services" 95 96 struct hostent { 97 char *h_name; /* official name of host */ 98 char **h_aliases; /* alias list */ 99 int h_addrtype; /* host address type */ 100 int h_length; /* length of address */ 101 char **h_addr_list; /* list of addresses from name server */ 102 #define h_addr h_addr_list[0] /* address, for backward compatiblity */ 103 }; 104 105 106 /* 107 * addrinfo introduced with IPv6 for Protocol-Independent Hostname 108 * and Service Name Translation. 109 */ 110 111 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) 112 struct addrinfo { 113 int ai_flags; /* AI_PASSIVE, AI_CANONNAME, ... */ 114 int ai_family; /* PF_xxx */ 115 int ai_socktype; /* SOCK_xxx */ 116 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 117 #ifdef __sparcv9 118 int _ai_pad; /* for backwards compat with old size_t */ 119 #endif /* __sparcv9 */ 120 socklen_t ai_addrlen; 121 char *ai_canonname; /* canonical name for hostname */ 122 struct sockaddr *ai_addr; /* binary address */ 123 struct addrinfo *ai_next; /* next structure in linked list */ 124 }; 125 /* addrinfo flags */ 126 #define AI_PASSIVE 0x0008 /* intended for bind() + listen() */ 127 #define AI_CANONNAME 0x0010 /* return canonical version of host */ 128 #define AI_NUMERICHOST 0x0020 /* use numeric node address string */ 129 #define AI_NUMERICSERV 0x0040 /* servname is assumed numeric */ 130 131 /* getipnodebyname() flags */ 132 #define AI_V4MAPPED 0x0001 /* IPv4 mapped addresses if no IPv6 */ 133 #define AI_ALL 0x0002 /* IPv6 and IPv4 mapped addresses */ 134 #define AI_ADDRCONFIG 0x0004 /* AAAA or A records only if IPv6/IPv4 cnfg'd */ 135 136 /* 137 * These were defined in RFC 2553 but not SUSv3 138 * or RFC 3493 which obsoleted 2553. 139 */ 140 #if !defined(_XPG6) || defined(__EXTENSIONS__) 141 #define AI_DEFAULT (AI_V4MAPPED | AI_ADDRCONFIG) 142 143 /* addrinfo errors */ 144 #define EAI_ADDRFAMILY 1 /* address family not supported */ 145 #define EAI_NODATA 7 /* no address */ 146 #endif /* !defined(_XPG6) || defined(__EXTENSIONS__) */ 147 #define EAI_AGAIN 2 /* DNS temporary failure */ 148 #define EAI_BADFLAGS 3 /* invalid ai_flags */ 149 #define EAI_FAIL 4 /* DNS non-recoverable failure */ 150 #define EAI_FAMILY 5 /* ai_family not supported */ 151 #define EAI_MEMORY 6 /* memory allocation failure */ 152 #define EAI_NONAME 8 /* host/servname not known */ 153 #define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 154 #define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 155 #define EAI_SYSTEM 11 /* system error in errno */ 156 #define EAI_OVERFLOW 12 /* argument buffer overflow */ 157 158 /* getnameinfo flags */ 159 #define NI_NOFQDN 0x0001 160 #define NI_NUMERICHOST 0x0002 /* return numeric form of address */ 161 #define NI_NAMEREQD 0x0004 /* request DNS name */ 162 #define NI_NUMERICSERV 0x0008 163 #define NI_DGRAM 0x0010 164 165 #if !defined(_XPG6) || defined(__EXTENSIONS__) 166 /* Not listed in any standards document */ 167 #define NI_WITHSCOPEID 0x0020 168 #define NI_NUMERICSCOPE 0x0040 169 170 /* getnameinfo max sizes as defined in RFC 2553 obsoleted in RFC 3493 */ 171 #define NI_MAXHOST 1025 172 #define NI_MAXSERV 32 173 #endif /* !defined(_XPG6) || defined(__EXTENSIONS__) */ 174 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */ 175 176 /* 177 * Algorithm entry for /etc/inet/ipsecalgs which defines IPsec protocols 178 * and algorithms. 179 */ 180 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 181 typedef struct ipsecalgent { 182 char **a_names; /* algorithm names */ 183 int a_proto_num; /* protocol number */ 184 int a_alg_num; /* algorithm number */ 185 char *a_mech_name; /* encryption framework mechanism name */ 186 int *a_block_sizes; /* supported block sizes */ 187 int *a_key_sizes; /* supported key sizes */ 188 int a_key_increment; /* key size increment */ 189 } ipsecalgent_t; 190 191 /* well-known IPsec protocol numbers */ 192 193 #define IPSEC_PROTO_AH 2 194 #define IPSEC_PROTO_ESP 3 195 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 196 197 /* 198 * Assumption here is that a network number 199 * fits in 32 bits -- probably a poor one. 200 */ 201 struct netent { 202 char *n_name; /* official name of net */ 203 char **n_aliases; /* alias list */ 204 int n_addrtype; /* net address type */ 205 in_addr_t n_net; /* network # */ 206 }; 207 208 struct protoent { 209 char *p_name; /* official protocol name */ 210 char **p_aliases; /* alias list */ 211 int p_proto; /* protocol # */ 212 }; 213 214 struct servent { 215 char *s_name; /* official service name */ 216 char **s_aliases; /* alias list */ 217 int s_port; /* port # */ 218 char *s_proto; /* protocol to use */ 219 }; 220 221 #ifdef __STDC__ 222 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 223 struct hostent *gethostbyname_r 224 (const char *, struct hostent *, char *, int, int *h_errnop); 225 struct hostent *gethostbyaddr_r 226 (const char *, int, int, struct hostent *, char *, int, int *h_errnop); 227 struct hostent *getipnodebyname(const char *, int, int, int *); 228 struct hostent *getipnodebyaddr(const void *, size_t, int, int *); 229 void freehostent(struct hostent *); 230 struct hostent *gethostent_r(struct hostent *, char *, int, int *h_errnop); 231 232 struct servent *getservbyname_r 233 (const char *name, const char *, struct servent *, char *, int); 234 struct servent *getservbyport_r 235 (int port, const char *, struct servent *, char *, int); 236 struct servent *getservent_r(struct servent *, char *, int); 237 238 struct netent *getnetbyname_r 239 (const char *, struct netent *, char *, int); 240 struct netent *getnetbyaddr_r(long, int, struct netent *, char *, int); 241 struct netent *getnetent_r(struct netent *, char *, int); 242 243 struct protoent *getprotobyname_r 244 (const char *, struct protoent *, char *, int); 245 struct protoent *getprotobynumber_r 246 (int, struct protoent *, char *, int); 247 struct protoent *getprotoent_r(struct protoent *, char *, int); 248 249 int getnetgrent_r(char **, char **, char **, char *, int); 250 int innetgr(const char *, const char *, const char *, const char *); 251 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 252 253 /* Old interfaces that return a pointer to a static area; MT-unsafe */ 254 struct hostent *gethostbyname(const char *); 255 struct hostent *gethostent(void); 256 struct netent *getnetbyaddr(in_addr_t, int); 257 struct netent *getnetbyname(const char *); 258 struct netent *getnetent(void); 259 struct protoent *getprotobyname(const char *); 260 struct protoent *getprotobynumber(int); 261 struct protoent *getprotoent(void); 262 struct servent *getservbyname(const char *, const char *); 263 struct servent *getservbyport(int, const char *); 264 struct servent *getservent(void); 265 266 /* gethostbyaddr() second argument is a size_t only in unix95/unix98 */ 267 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) 268 struct hostent *gethostbyaddr(const void *, socklen_t, int); 269 #else 270 struct hostent *gethostbyaddr(const void *, size_t, int); 271 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */ 272 273 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 274 int endhostent(void); 275 int endnetent(void); 276 int endprotoent(void); 277 int endservent(void); 278 int sethostent(int); 279 int setnetent(int); 280 int setprotoent(int); 281 int setservent(int); 282 #else 283 void endhostent(void); 284 void endnetent(void); 285 void endprotoent(void); 286 void endservent(void); 287 void sethostent(int); 288 void setnetent(int); 289 void setprotoent(int); 290 void setservent(int); 291 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 292 293 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) 294 295 #ifdef _XPG6 296 #ifdef __PRAGMA_REDEFINE_EXTNAME 297 #pragma redefine_extname getaddrinfo __xnet_getaddrinfo 298 #else /* __PRAGMA_REDEFINE_EXTNAME */ 299 #define getaddrinfo __xnet_getaddrinfo 300 #endif /* __PRAGMA_REDEFINE_EXTNAME */ 301 #endif /* _XPG6 */ 302 303 int getaddrinfo(const char *_RESTRICT_KYWD, 304 const char *_RESTRICT_KYWD, 305 const struct addrinfo *_RESTRICT_KYWD, 306 struct addrinfo **_RESTRICT_KYWD); 307 void freeaddrinfo(struct addrinfo *); 308 const char *gai_strerror(int); 309 int getnameinfo(const struct sockaddr *_RESTRICT_KYWD, 310 socklen_t, char *_RESTRICT_KYWD, socklen_t, 311 char *_RESTRICT_KYWD, socklen_t, int); 312 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */ 313 314 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 315 int getnetgrent(char **, char **, char **); 316 int setnetgrent(const char *); 317 int endnetgrent(void); 318 int rcmd(char **, unsigned short, 319 const char *, const char *, const char *, int *); 320 int rcmd_af(char **, unsigned short, 321 const char *, const char *, const char *, int *, int); 322 int rresvport_af(int *, int); 323 int rresvport_addr(int *, struct sockaddr_storage *); 324 int rexec(char **, unsigned short, 325 const char *, const char *, const char *, int *); 326 int rexec_af(char **, unsigned short, 327 const char *, const char *, const char *, int *, int); 328 int rresvport(int *); 329 int ruserok(const char *, int, const char *, const char *); 330 /* BIND */ 331 struct hostent *gethostbyname2(const char *, int); 332 void herror(const char *); 333 const char *hstrerror(int); 334 /* End BIND */ 335 336 /* IPsec algorithm prototype definitions */ 337 struct ipsecalgent *getipsecalgbyname(const char *, int, int *); 338 struct ipsecalgent *getipsecalgbynum(int, int, int *); 339 int getipsecprotobyname(const char *doi_name); 340 char *getipsecprotobynum(int doi_domain); 341 void freeipsecalgent(struct ipsecalgent *ptr); 342 /* END IPsec algorithm prototype definitions */ 343 344 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 345 #else /* __STDC__ */ 346 struct hostent *gethostbyname_r(); 347 struct hostent *gethostbyaddr_r(); 348 struct hostent *getipnodebyname(); 349 struct hostent *getipnodebyaddr(); 350 void freehostent(); 351 struct hostent *gethostent_r(); 352 struct servent *getservbyname_r(); 353 struct servent *getservbyport_r(); 354 struct servent *getservent_r(); 355 struct netent *getnetbyname_r(); 356 struct netent *getnetbyaddr_r(); 357 struct netent *getnetent_r(); 358 struct protoent *getprotobyname_r(); 359 struct protoent *getprotobynumber_r(); 360 struct protoent *getprotoent_r(); 361 int getnetgrent_r(); 362 int innetgr(); 363 364 /* Old interfaces that return a pointer to a static area; MT-unsafe */ 365 struct hostent *gethostbyname(); 366 struct hostent *gethostbyaddr(); 367 struct hostent *gethostent(); 368 struct netent *getnetbyname(); 369 struct netent *getnetbyaddr(); 370 struct netent *getnetent(); 371 struct servent *getservbyname(); 372 struct servent *getservbyport(); 373 struct servent *getservent(); 374 struct protoent *getprotobyname(); 375 struct protoent *getprotobynumber(); 376 struct protoent *getprotoent(); 377 int getnetgrent(); 378 379 int sethostent(); 380 int endhostent(); 381 int setnetent(); 382 int endnetent(); 383 int setservent(); 384 int endservent(); 385 int setprotoent(); 386 int endprotoent(); 387 int setnetgrent(); 388 int endnetgrent(); 389 int rcmd(); 390 int rcmd_af(); 391 int rexec(); 392 int rexec_af(); 393 int rresvport(); 394 int rresvport_af(); 395 int rresvport_addr(); 396 int ruserok(); 397 /* BIND */ 398 struct hostent *gethostbyname2(); 399 void herror(); 400 char *hstrerror(); 401 /* IPv6 prototype definitons */ 402 int getaddrinfo(); 403 void freeaddrinfo(); 404 const char *gai_strerror(); 405 int getnameinfo(); 406 /* END IPv6 prototype definitions */ 407 /* End BIND */ 408 409 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 410 /* IPsec algorithm prototype definitions */ 411 struct ipsecalgent *getalgbyname(); 412 struct ipsecalgent *getalgbydoi(); 413 int getdoidomainbyname(); 414 const char *getdoidomainbynum(); 415 void freealgent(); 416 /* END IPsec algorithm prototype definitions */ 417 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 418 419 #endif /* __STDC__ */ 420 421 /* 422 * Error return codes from gethostbyname() and gethostbyaddr() 423 * (when using the resolver) 424 */ 425 426 extern int h_errno; 427 428 #ifdef _REENTRANT 429 #ifdef __STDC__ 430 extern int *__h_errno(void); 431 #else 432 extern int *__h_errno(); 433 #endif /* __STDC__ */ 434 435 /* Only #define h_errno if there is no conflict with other use */ 436 #ifdef H_ERRNO_IS_FUNCTION 437 #define h_errno (*__h_errno()) 438 #endif /* NO_H_ERRNO_DEFINE */ 439 #endif /* _REENTRANT */ 440 441 #define HOST_NOT_FOUND 1 /* Authoritive Answer Host not found */ 442 #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */ 443 #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 444 #define NO_DATA 4 /* Valid name, no data record of requested type */ 445 446 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 447 #define NO_ADDRESS NO_DATA /* no address, look for MX record */ 448 449 /* BIND */ 450 #define NETDB_INTERNAL -1 /* see errno */ 451 #define NETDB_SUCCESS 0 /* no problem */ 452 /* End BIND */ 453 454 #define MAXHOSTNAMELEN 256 455 456 #define MAXALIASES 35 457 #define MAXADDRS 35 458 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 459 460 #ifdef __cplusplus 461 } 462 #endif 463 464 #endif /* _NETDB_H */ 465
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