1 /* 2 * ++Copyright++ 1980, 1983, 1988, 1993 3 * - 4 * Copyright (c) 1980, 1983, 1988, 1993 5 * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * - 35 * Portions Copyright (c) 1993 by Digital Equipment Corporation. 36 * 37 * Permission to use, copy, modify, and distribute this software for any 38 * purpose with or without fee is hereby granted, provided that the above 39 * copyright notice and this permission notice appear in all copies, and that 40 * the name of Digital Equipment Corporation not be used in advertising or 41 * publicity pertaining to distribution of the document or software without 42 * specific, written prior permission. 43 * 44 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 45 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 46 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 47 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 48 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 49 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 50 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 51 * SOFTWARE. 52 * - 53 * Portions Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 54 * All rights reserved. 55 * 56 * Redistribution and use in source and binary forms, with or without 57 * modification, are permitted provided that the following conditions 58 * are met: 59 * 1. Redistributions of source code must retain the above copyright 60 * notice, this list of conditions and the following disclaimer. 61 * 2. Redistributions in binary form must reproduce the above copyright 62 * notice, this list of conditions and the following disclaimer in the 63 * documentation and/or other materials provided with the distribution. 64 * 3. All advertising materials mentioning features or use of this software 65 * must display the following acknowledgement: 66 * This product includes software developed by WIDE Project and 67 * its contributors. 68 * 4. Neither the name of the project nor the names of its contributors 69 * may be used to endorse or promote products derived from this software 70 * without specific prior written permission. 71 * 72 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 73 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 74 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 75 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 76 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 77 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 78 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 79 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 80 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 81 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 82 * SUCH DAMAGE. 83 * - 84 * --Copyright-- 85 */ 86 87 /* 88 * @(#)netdb.h 8.1 (Berkeley) 6/2/93 89 * $Id: netdb.h,v 1.7 2004/04/15 15:54:33 wkornew Exp $ 90 */ 91 92 #ifndef _NETDB_H_ 93 #define _NETDB_H_ 94 95 #include <sys/param.h> 96 #include <sys/types.h> 97 #if (!defined(BSD)) || (BSD < 199306) 98 # include <sys/bitypes.h> 99 #endif 100 #include <sys/cdefs.h> 101 #include <sys/socket.h> 102 #include <netinet/in.h> 103 #include <stdio.h> 104 105 #ifndef _PATH_HEQUIV 106 #define _PATH_HEQUIV "/etc/hosts.equiv" 107 #endif 108 #ifndef _PATH_HOSTS 109 #define _PATH_HOSTS "/etc/hosts" 110 #endif 111 #ifndef _PATH_NETWORKS 112 #define _PATH_NETWORKS "/etc/networks" 113 #endif 114 #ifndef _PATH_PROTOCOLS 115 #define _PATH_PROTOCOLS "/etc/protocols" 116 #endif 117 #ifndef _PATH_SERVICES 118 #define _PATH_SERVICES "/etc/services" 119 #endif 120 121 __BEGIN_DECLS 122 extern int * __h_errno __P((void)); 123 __END_DECLS 124 #define h_errno (*__h_errno()) 125 126 /* 127 * Structures returned by network data base library. All addresses are 128 * supplied in host order, and returned in network order (suitable for 129 * use in system calls). 130 */ 131 struct hostent { 132 char *h_name; /* official name of host */ 133 char **h_aliases; /* alias list */ 134 int h_addrtype; /* host address type */ 135 int h_length; /* length of address */ 136 char **h_addr_list; /* list of addresses from name server */ 137 #define h_addr h_addr_list[0] /* address, for backward compatiblity */ 138 }; 139 140 /* 141 * Assumption here is that a network number 142 * fits in an unsigned long -- probably a poor one. 143 */ 144 struct netent { 145 char *n_name; /* official name of net */ 146 char **n_aliases; /* alias list */ 147 int n_addrtype; /* net address type */ 148 unsigned long n_net; /* network # */ 149 }; 150 151 struct servent { 152 char *s_name; /* official service name */ 153 char **s_aliases; /* alias list */ 154 int s_port; /* port # */ 155 char *s_proto; /* protocol to use */ 156 }; 157 158 struct protoent { 159 char *p_name; /* official protocol name */ 160 char **p_aliases; /* alias list */ 161 int p_proto; /* protocol # */ 162 }; 163 164 struct addrinfo { 165 int ai_flags; /* AI_PASSIVE, AI_CANONNAME */ 166 int ai_family; /* PF_xxx */ 167 int ai_socktype; /* SOCK_xxx */ 168 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 169 size_t ai_addrlen; /* length of ai_addr */ 170 char *ai_canonname; /* canonical name for hostname */ 171 struct sockaddr *ai_addr; /* binary address */ 172 struct addrinfo *ai_next; /* next structure in linked list */ 173 }; 174 175 /* 176 * Error return codes from gethostbyname() and gethostbyaddr() 177 * (left in extern int h_errno). 178 */ 179 180 #define NETDB_INTERNAL -1 /* see errno */ 181 #define NETDB_SUCCESS 0 /* no problem */ 182 #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ 183 #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */ 184 #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 185 #define NO_DATA 4 /* Valid name, no data record of requested type */ 186 #define NO_ADDRESS NO_DATA /* no address, look for MX record */ 187 188 /* 189 * Error return codes from getaddrinfo() 190 */ 191 #define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 192 #define EAI_AGAIN 2 /* temporary failure in name resolution */ 193 #define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 194 #define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 195 #define EAI_FAMILY 5 /* ai_family not supported */ 196 #define EAI_MEMORY 6 /* memory allocation failure */ 197 #define EAI_NODATA 7 /* no address associated with hostname */ 198 #define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 199 #define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 200 #define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 201 #define EAI_SYSTEM 11 /* system error returned in errno */ 202 #define EAI_BADHINTS 12 203 #define EAI_PROTOCOL 13 204 #define EAI_MAX 14 205 206 /* 207 * Flag values for getaddrinfo() 208 */ 209 #define AI_PASSIVE 0x00000001 210 #define AI_CANONNAME 0x00000002 211 #define AI_NUMERICHOST 0x00000004 212 #define AI_MASK 0x00000007 213 214 /* 215 * Flag values for getipnodebyname() 216 */ 217 #define AI_V4MAPPED 0x00000008 218 #define AI_ALL 0x00000010 219 #define AI_ADDRCONFIG 0x00000020 220 #define AI_DEFAULT (AI_V4MAPPED|AI_ADDRCONFIG) 221 222 /* 223 * Constants for getnameinfo() 224 */ 225 #define NI_MAXHOST 1025 226 #define NI_MAXSERV 32 227 228 /* 229 * Flag values for getnameinfo() 230 */ 231 #define NI_NOFQDN 0x00000001 232 #define NI_NUMERICHOST 0x00000002 233 #define NI_NAMEREQD 0x00000004 234 #define NI_NUMERICSERV 0x00000008 235 #define NI_DGRAM 0x00000010 236 #define NI_WITHSCOPEID 0x00000020 237 #define NI_NUMERICSCOPE 0x00000040 238 239 /* 240 * Scope delimit character 241 */ 242 #define SCOPE_DELIMITER '%' 243 244 245 #if defined (__hpux) || defined(__osf__) || defined(_AIX) 246 #define _MAXALIASES 35 247 #define _MAXLINELEN 1024 248 #define _MAXADDRS 35 249 #define _HOSTBUFSIZE (BUFSIZ + 1) 250 251 struct hostent_data { 252 struct in_addr host_addr; 253 char *h_addr_ptrs[_MAXADDRS + 1]; 254 char hostaddr[_MAXADDRS]; 255 char hostbuf[_HOSTBUFSIZE]; 256 char *host_aliases[_MAXALIASES]; 257 char *host_addrs[2]; 258 FILE *hostf; 259 #ifdef __osf__ 260 int svc_gethostflag; 261 int svc_gethostbind; 262 #endif 263 #ifdef __hpux 264 short _nsw_src; 265 short _flags; 266 char *current; 267 int currentlen; 268 #endif 269 }; 270 271 struct netent_data { 272 FILE *net_fp; 273 #ifdef __osf__ 274 char line[_MAXLINELEN]; 275 #endif 276 #ifdef __hpux 277 char line[_MAXLINELEN+1]; 278 #endif 279 char *net_aliases[_MAXALIASES]; 280 #ifdef __osf__ 281 int _net_stayopen; 282 int svc_getnetflag; 283 #endif 284 #ifdef __hpux 285 short _nsw_src; 286 short _flags; 287 char *current; 288 int currentlen; 289 #endif 290 }; 291 292 struct protoent_data { 293 FILE *proto_fp; 294 #ifdef __osf__ 295 char line[1024]; 296 #endif 297 #ifdef __hpux 298 char line[_MAXLINELEN+1]; 299 #endif 300 char *proto_aliases[_MAXALIASES]; 301 #ifdef __osf__ 302 int _proto_stayopen; 303 int svc_getprotoflag; 304 #endif 305 #ifdef __hpux 306 short _nsw_src; 307 short _flags; 308 char *current; 309 int currentlen; 310 #endif 311 }; 312 313 struct servent_data { 314 FILE *serv_fp; 315 #ifdef __osf__ 316 char line[_MAXLINELEN]; 317 #endif 318 #ifdef __hpux 319 char line[_MAXLINELEN+1]; 320 #endif 321 char *serv_aliases[_MAXALIASES]; 322 #ifdef __osf__ 323 int _serv_stayopen; 324 int svc_getservflag; 325 #endif 326 #ifdef __hpux 327 short _nsw_src; 328 short _flags; 329 char *current; 330 int currentlen; 331 #endif 332 }; 333 #endif 334 335 __BEGIN_DECLS 336 void endhostent __P((void)); 337 void endnetent __P((void)); 338 void endprotoent __P((void)); 339 void endservent __P((void)); 340 void freehostent __P((struct hostent *)); 341 struct hostent *gethostbyaddr __P((const char *, int, int)); 342 struct hostent *gethostbyname __P((const char *)); 343 struct hostent *gethostbyname2 __P((const char *, int)); 344 struct hostent *gethostent __P((void)); 345 struct hostent *getipnodebyaddr __P((const void *, size_t, int, int *)); 346 struct hostent *getipnodebyname __P((const char *, int, int, int *)); 347 struct netent *getnetbyaddr __P((unsigned long, int)); 348 struct netent *getnetbyname __P((const char *)); 349 struct netent *getnetent __P((void)); 350 struct protoent *getprotobyname __P((const char *)); 351 struct protoent *getprotobynumber __P((int)); 352 struct protoent *getprotoent __P((void)); 353 struct servent *getservbyname __P((const char *, const char *)); 354 struct servent *getservbyport __P((int, const char *)); 355 struct servent *getservent __P((void)); 356 void herror __P((const char *)); 357 const char *hstrerror __P((int)); 358 void sethostent __P((int)); 359 /* void sethostfile __P((const char *)); */ 360 void setnetent __P((int)); 361 void setprotoent __P((int)); 362 void setservent __P((int)); 363 int getaddrinfo __P((const char *, const char *, 364 const struct addrinfo *, struct addrinfo **)); 365 int getnameinfo __P((const struct sockaddr *, size_t, char *, 366 size_t, char *, size_t, int)); 367 void freeaddrinfo __P((struct addrinfo *)); 368 const char *gai_strerror __P((int)); 369 struct hostent *getipnodebyname __P((const char *, int, int, int *)); 370 struct hostent *getipnodebyaddr __P((const void *, size_t, int, int *)); 371 void freehostent __P((struct hostent *)); 372 373 374 struct hostent *gethostbyaddr_r __P((const char *, int, int, struct hostent *, 375 char *, int, int *)); 376 struct hostent *gethostbyname_r __P((const char *, struct hostent *, 377 char *, int, int *)); 378 struct hostent *gethostent_r __P((struct hostent *, char *, int, int *)); 379 void sethostent_r __P((int)); 380 void endhostent_r __P((void)); 381 382 struct netent *getnetbyname_r __P((const char *, struct netent *, 383 char *, int)); 384 struct netent *getnetbyaddr_r __P((long, int, struct netent *, 385 char *, int)); 386 struct netent *getnetent_r __P((struct netent *, char *, int)); 387 void setnetent_r __P((int)); 388 void endnetent_r __P((void)); 389 390 struct protoent *getprotobyname_r __P((const char *, 391 struct protoent *, char *, int)); 392 struct protoent *getprotobynumber_r __P((int, 393 struct protoent *, char *, int)); 394 struct protoent *getprotoent_r __P((struct protoent *, char *, int)); 395 void setprotoent_r __P((int)); 396 void endprotoent_r __P((void)); 397 398 struct servent *getservbyname_r __P((const char *name, const char *, 399 struct servent *, char *, int)); 400 struct servent *getservbyport_r __P((int port, const char *, 401 struct servent *, char *, int)); 402 struct servent *getservent_r __P((struct servent *, char *, int)); 403 void setservent_r __P((int)); 404 void endservent_r __P((void)); 405 __END_DECLS 406 407 /* This is nec'y to make this include file properly replace the sun version. */ 408 #ifdef sun 409 #ifdef __GNU_LIBRARY__ 410 #include <rpc/netdb.h> 411 #else 412 struct rpcent { 413 char *r_name; /* name of server for this rpc program */ 414 char **r_aliases; /* alias list */ 415 int r_number; /* rpc program number */ 416 }; 417 struct rpcent *getrpcbyname(), *getrpcbynumber(), *getrpcent(); 418 #endif /* __GNU_LIBRARY__ */ 419 #endif /* sun */ 420 421 #endif /* !_NETDB_H_ */ 422