Annotation of src/include/netdb.h, Revision 1.38
1.38 ! kleink 1: /* $NetBSD: netdb.h,v 1.37 2004/05/08 18:52:15 kleink Exp $ */
1.12 itojun 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: */
1.9 perry 31:
32: /*-
1.6 mrg 33: * Copyright (c) 1980, 1983, 1988, 1993
34: * The Regents of the University of California. All rights reserved.
1.1 cgd 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.
1.31 agc 44: * 3. Neither the name of the University nor the names of its contributors
1.1 cgd 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.
1.9 perry 59: *
60: * @(#)netdb.h 8.1 (Berkeley) 6/2/93
1.10 perry 61: * Id: netdb.h,v 4.9.1.2 1993/05/17 09:59:01 vixie Exp
1.6 mrg 62: * -
63: * Portions Copyright (c) 1993 by Digital Equipment Corporation.
1.9 perry 64: *
1.6 mrg 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.
1.9 perry 71: *
1.6 mrg 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:
1.1 cgd 84: #ifndef _NETDB_H_
85: #define _NETDB_H_
86:
1.13 kleink 87: #include <machine/ansi.h>
1.37 kleink 88: #include <machine/endian_machdep.h>
1.23 kleink 89: #include <sys/ansi.h>
1.6 mrg 90: #include <sys/cdefs.h>
1.29 bjh21 91: #include <sys/featuretest.h>
1.13 kleink 92: #include <inttypes.h>
1.6 mrg 93:
1.23 kleink 94: /*
95: * Data types
96: */
97: #ifndef socklen_t
98: typedef __socklen_t socklen_t;
99: #define socklen_t __socklen_t
100: #endif
101:
1.13 kleink 102: #ifdef _BSD_SIZE_T_
103: typedef _BSD_SIZE_T_ size_t;
104: #undef _BSD_SIZE_T_
105: #endif
1.11 kleink 106:
1.29 bjh21 107: #if defined(_NETBSD_SOURCE)
1.1 cgd 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"
1.11 kleink 113: #endif
1.1 cgd 114:
1.6 mrg 115: extern int h_errno;
116:
1.1 cgd 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 */
1.28 wiz 128: #define h_addr h_addr_list[0] /* address, for backward compatibility */
1.1 cgd 129: };
130:
131: /*
132: * Assumption here is that a network number
1.6 mrg 133: * fits in an unsigned long -- probably a poor one.
1.1 cgd 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 */
1.37 kleink 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
1.1 cgd 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:
1.23 kleink 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: */
1.30 bjh21 174: #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
175: defined(_NETBSD_SOURCE)
1.12 itojun 176: struct addrinfo {
1.36 itojun 177: int ai_flags; /* AI_xxx */
1.12 itojun 178: int ai_family; /* PF_xxx */
179: int ai_socktype; /* SOCK_xxx */
180: int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
1.38 ! kleink 181: #if defined(__sparc__) && defined(_LP64)
! 182: int __ai_pad0; /* ABI compatibility */
1.23 kleink 183: #endif
184: socklen_t ai_addrlen; /* length of ai_addr */
185: #if defined(__alpha__) || (defined(__i386__) && defined(_LP64))
1.38 ! kleink 186: int __ai_pad0; /* ABI compatbility */
1.23 kleink 187: #endif
1.12 itojun 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: };
1.13 kleink 192: #endif
1.12 itojun 193:
1.1 cgd 194: /*
195: * Error return codes from gethostbyname() and gethostbyaddr()
196: * (left in extern int h_errno).
197: */
1.5 jtc 198:
1.29 bjh21 199: #if defined(_NETBSD_SOURCE)
1.6 mrg 200: #define NETDB_INTERNAL -1 /* see errno */
201: #define NETDB_SUCCESS 0 /* no problem */
1.11 kleink 202: #endif
1.1 cgd 203: #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
1.16 mjl 204: #define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */
1.1 cgd 205: #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
206: #define NO_DATA 4 /* Valid name, no data record of requested type */
1.29 bjh21 207: #if defined(_NETBSD_SOURCE)
1.1 cgd 208: #define NO_ADDRESS NO_DATA /* no address, look for MX record */
1.11 kleink 209: #endif
1.1 cgd 210:
1.12 itojun 211: /*
212: * Error return codes from getaddrinfo()
213: */
1.30 bjh21 214: #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
215: defined(_NETBSD_SOURCE)
1.12 itojun 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 */
1.20 lukem 227: #define EAI_BADHINTS 12
228: #define EAI_PROTOCOL 13
229: #define EAI_MAX 14
1.30 bjh21 230: #endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE >= 520 || _NETBSD_SOURCE */
1.12 itojun 231:
232: /*
233: * Flag values for getaddrinfo()
234: */
1.30 bjh21 235: #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
236: defined(_NETBSD_SOURCE)
1.12 itojun 237: #define AI_PASSIVE 0x00000001 /* get address to use bind() */
238: #define AI_CANONNAME 0x00000002 /* fill ai_canonname */
1.35 itojun 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)
1.13 kleink 244: #endif
1.12 itojun 245:
1.30 bjh21 246: #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
247: defined(_NETBSD_SOURCE)
1.12 itojun 248: /*
249: * Constants for getnameinfo()
250: */
1.29 bjh21 251: #if defined(_NETBSD_SOURCE)
1.12 itojun 252: #define NI_MAXHOST 1025
253: #define NI_MAXSERV 32
1.22 kleink 254: #endif
1.12 itojun 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
1.29 bjh21 264: #if defined(_NETBSD_SOURCE)
1.20 lukem 265: #define NI_WITHSCOPEID 0x00000020 /*KAME extension*/
1.22 kleink 266: #endif
1.14 itojun 267:
268: /*
269: * Scope delimit character
270: */
1.29 bjh21 271: #if defined(_NETBSD_SOURCE)
1.20 lukem 272: #define SCOPE_DELIMITER '%' /*KAME extension*/
1.22 kleink 273: #endif
1.30 bjh21 274: #endif /* (_POSIX_C_SOURCE - 0) >= 200112L || ... */
1.18 itojun 275:
1.1 cgd 276: __BEGIN_DECLS
277: void endhostent __P((void));
278: void endnetent __P((void));
279: void endprotoent __P((void));
280: void endservent __P((void));
1.30 bjh21 281: #if (_XOPEN_SOURCE - 0) >= 500 && (_XOPEN_SOURCE - 0) < 600 || \
282: defined(_NETBSD_SOURCE)
1.12 itojun 283: void freehostent __P((struct hostent *));
1.13 kleink 284: #endif
1.21 kleink 285: struct hostent *gethostbyaddr __P((const char *, socklen_t, int));
1.3 deraadt 286: struct hostent *gethostbyname __P((const char *));
1.29 bjh21 287: #if defined(_NETBSD_SOURCE)
1.6 mrg 288: struct hostent *gethostbyname2 __P((const char *, int));
1.11 kleink 289: #endif
1.3 deraadt 290: struct hostent *gethostent __P((void));
1.30 bjh21 291: #if (_XOPEN_SOURCE - 0) >= 520 && (_XOPEN_SOURCE - 0) < 600 || \
292: defined(_NETBSD_SOURCE)
1.15 itojun 293: #if 0 /* we do not ship these */
1.12 itojun 294: struct hostent *getipnodebyaddr __P((const void *, size_t, int, int *));
295: struct hostent *getipnodebyname __P((const char *, int, int, int *));
1.15 itojun 296: #endif
1.13 kleink 297: #endif
1.37 kleink 298: struct netent *getnetbyaddr __P((uint32_t, int));
1.1 cgd 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));
1.29 bjh21 307: #if defined(_NETBSD_SOURCE)
1.1 cgd 308: void herror __P((const char *));
1.6 mrg 309: const char *hstrerror __P((int));
1.11 kleink 310: #endif
1.1 cgd 311: void sethostent __P((int));
1.29 bjh21 312: #if defined(_NETBSD_SOURCE)
1.1 cgd 313: /* void sethostfile __P((const char *)); */
1.11 kleink 314: #endif
1.1 cgd 315: void setnetent __P((int));
316: void setprotoent __P((int));
1.30 bjh21 317: #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
318: defined(_NETBSD_SOURCE)
1.12 itojun 319: int getaddrinfo __P((const char *, const char *,
320: const struct addrinfo *, struct addrinfo **));
1.18 itojun 321: int getnameinfo __P((const struct sockaddr *, socklen_t, char *,
1.26 kleink 322: socklen_t, char *, socklen_t, int));
1.12 itojun 323: void freeaddrinfo __P((struct addrinfo *));
324: char *gai_strerror __P((int));
1.13 kleink 325: #endif
1.1 cgd 326: void setservent __P((int));
1.32 christos 327:
1.34 christos 328: #if defined(_NETBSD_SOURCE) && defined(_LIBC)
1.32 christos 329:
330: struct protoent_data {
331: FILE *fp;
332: struct protoent proto;
333: char **aliases;
334: size_t maxaliases;
335: int stayopen;
1.33 christos 336: char *line;
337: void *dummy;
1.32 christos 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;
1.33 christos 355: char *line;
356: void *dummy;
1.32 christos 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:
1.34 christos 367: #endif /* _NETBSD_SOURCE && _LIBC */
1.1 cgd 368: __END_DECLS
369:
370: #endif /* !_NETDB_H_ */
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