glibc (2.38)
1 /*
2 * Copyright (c) 1983, 1987, 1989
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*
31 * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
32 *
33 * Permission to use, copy, modify, and distribute this software for any
34 * purpose with or without fee is hereby granted, provided that the above
35 * copyright notice and this permission notice appear in all copies.
36 *
37 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
38 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
40 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
41 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
42 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
43 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44 * SOFTWARE.
45 */
46
47 /*
48 * @(#)resolv.h 8.1 (Berkeley) 6/2/93
49 * $BINDId: resolv.h,v 8.31 2000/03/30 20:16:50 vixie Exp $
50 */
51
52 #ifndef _RESOLV_H_
53 #define _RESOLV_H_
54
55 #include <sys/cdefs.h>
56 #include <sys/param.h>
57 #include <sys/types.h>
58 #include <stdio.h>
59 #include <netinet/in.h>
60 #include <arpa/nameser.h>
61 #include <bits/types/res_state.h>
62
63 /*
64 * Global defines and variables for resolver stub.
65 */
66 #define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
67
68 #define RES_TIMEOUT 5 /* min. seconds between retries */
69 #define RES_MAXNDOTS 15 /* should reflect bit field size */
70 #define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */
71 #define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */
72 #define RES_DFLRETRY 2 /* Default #/tries. */
73 #define RES_MAXTIME 65535 /* Infinity, in milliseconds. */
74
75 #define nsaddr nsaddr_list[0] /* for backward compatibility */
76
77 /*
78 * Revision information. This is the release date in YYYYMMDD format.
79 * It can change every day so the right thing to do with it is use it
80 * in preprocessor commands such as "#if (__RES > 19931104)". Do not
81 * compare for equality; rather, use it to determine whether your resolver
82 * is new enough to contain a certain feature.
83 */
84
85 #define __RES 19991006
86
87 /*
88 * Resolver configuration file.
89 * Normally not present, but may contain the address of the
90 * initial name server(s) to query and the domain search list.
91 */
92
93 #ifndef _PATH_RESCONF
94 #define _PATH_RESCONF "/etc/resolv.conf"
95 #endif
96
97 struct res_sym {
98 int number; /* Identifying number, like T_MX */
99 char * name; /* Its symbolic name, like "MX" */
100 char * humanname; /* Its fun name, like "mail exchanger" */
101 };
102
103 /*
104 * Resolver options (keep these in synch with res_debug.c, please)
105 */
106 #define RES_INIT 0x00000001 /* address initialized */
107 #define RES_DEBUG 0x00000002 /* print debug messages */
108 #define RES_AAONLY \
109 __glibc_macro_warning ("RES_AAONLY is deprecated") 0x00000004
110 #define RES_USEVC 0x00000008 /* use virtual circuit */
111 #define RES_PRIMARY \
112 __glibc_macro_warning ("RES_PRIMARY is deprecated") 0x00000010
113 #define RES_IGNTC 0x00000020 /* ignore trucation errors */
114 #define RES_RECURSE 0x00000040 /* recursion desired */
115 #define RES_DEFNAMES 0x00000080 /* use default domain name */
116 #define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */
117 #define RES_DNSRCH 0x00000200 /* search up local domain tree */
118 #define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */
119 #define RES_ROTATE 0x00004000 /* rotate ns list after each query */
120 #define RES_NOCHECKNAME \
121 __glibc_macro_warning ("RES_NOCHECKNAME is deprecated") 0x00008000
122 #define RES_KEEPTSIG \
123 __glibc_macro_warning ("RES_KEEPTSIG is deprecated") 0x00010000
124 #define RES_BLAST \
125 __glibc_macro_warning ("RES_BLAST is deprecated") 0x00020000
126 #define RES_USE_EDNS0 0x00100000 /* Use EDNS0. */
127 #define RES_SNGLKUP 0x00200000 /* one outstanding request at a time */
128 #define RES_SNGLKUPREOP 0x00400000 /* -"-, but open new socket for each
129 request */
130 #define RES_USE_DNSSEC 0x00800000 /* use DNSSEC using OK bit in OPT */
131 #define RES_NOTLDQUERY 0x01000000 /* Do not look up unqualified name
132 as a TLD. */
133 #define RES_NORELOAD 0x02000000 /* No automatic configuration reload. */
134 #define RES_TRUSTAD 0x04000000 /* Request AD bit, keep it in responses. */
135 #define RES_NOAAAA 0x08000000 /* Suppress AAAA queries. */
136
137 #define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH)
138
139 /*
140 * Resolver "pfcode" values. Used by dig.
141 */
142 #define RES_PRF_STATS 0x00000001
143 #define RES_PRF_UPDATE 0x00000002
144 #define RES_PRF_CLASS 0x00000004
145 #define RES_PRF_CMD 0x00000008
146 #define RES_PRF_QUES 0x00000010
147 #define RES_PRF_ANS 0x00000020
148 #define RES_PRF_AUTH 0x00000040
149 #define RES_PRF_ADD 0x00000080
150 #define RES_PRF_HEAD1 0x00000100
151 #define RES_PRF_HEAD2 0x00000200
152 #define RES_PRF_TTLID 0x00000400
153 #define RES_PRF_HEADX 0x00000800
154 #define RES_PRF_QUERY 0x00001000
155 #define RES_PRF_REPLY 0x00002000
156 #define RES_PRF_INIT 0x00004000
157 /* 0x00008000 */
158
159 /* Things involving an internal (static) resolver context. */
160 __BEGIN_DECLS
161 extern struct __res_state *__res_state(void) __attribute__ ((__const__));
162 __END_DECLS
163 #define _res (*__res_state())
164
165 #define fp_nquery __fp_nquery
166 #define fp_query __fp_query
167 #define hostalias __hostalias
168 #define p_query __p_query
169 #define res_close __res_close
170 #define res_init __res_init
171 #define res_isourserver __res_isourserver
172
173 #ifdef _LIBC
174 # define __RESOLV_DEPRECATED
175 # define __RESOLV_DEPRECATED_MSG(msg)
176 #else
177 # define __RESOLV_DEPRECATED __attribute_deprecated__
178 # define __RESOLV_DEPRECATED_MSG(msg) __attribute_deprecated_msg__ (msg)
179 #endif
180
181 __BEGIN_DECLS
182 void fp_nquery (const unsigned char *, int, FILE *) __THROW
183 __RESOLV_DEPRECATED;
184 void fp_query (const unsigned char *, FILE *) __THROW
185 __RESOLV_DEPRECATED;
186 const char * hostalias (const char *) __THROW
187 __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead");
188 void p_query (const unsigned char *) __THROW
189 __RESOLV_DEPRECATED;
190 void res_close (void) __THROW;
191 int res_init (void) __THROW;
192 int res_isourserver (const struct sockaddr_in *) __THROW
193 __RESOLV_DEPRECATED;
194 int res_mkquery (int, const char *, int, int,
195 const unsigned char *, int, const unsigned char *,
196 unsigned char *, int) __THROW;
197 int res_query (const char *, int, int, unsigned char *, int)
198 __THROW;
199 int res_querydomain (const char *, const char *, int, int,
200 unsigned char *, int) __THROW;
201 int res_search (const char *, int, int, unsigned char *, int)
202 __THROW;
203 int res_send (const unsigned char *, int, unsigned char *, int)
204 __THROW;
205 __END_DECLS
206
207 #define b64_ntop __b64_ntop
208 #define b64_pton __b64_pton
209 #define dn_count_labels __dn_count_labels
210 #define fp_resstat __fp_resstat
211 #define loc_aton __loc_aton
212 #define loc_ntoa __loc_ntoa
213 #define p_cdname __p_cdname
214 #define p_cdnname __p_cdnname
215 #define p_class __p_class
216 #define p_fqname __p_fqname
217 #define p_fqnname __p_fqnname
218 #define p_option __p_option
219 #define p_time __p_time
220 #define p_type __p_type
221 #define p_rcode __p_rcode
222 #define putlong __putlong
223 #define putshort __putshort
224 #define res_hostalias __res_hostalias
225 #define res_nameinquery __res_nameinquery
226 #define res_nclose __res_nclose
227 #define res_ninit __res_ninit
228 #define res_queriesmatch __res_queriesmatch
229 #define res_randomid __res_randomid
230 #define sym_ntop __sym_ntop
231 #define sym_ntos __sym_ntos
232 #define sym_ston __sym_ston
233 __BEGIN_DECLS
234 int res_hnok (const char *) __THROW;
235 int res_ownok (const char *) __THROW;
236 int res_mailok (const char *) __THROW;
237 int res_dnok (const char *) __THROW;
238 int sym_ston (const struct res_sym *, const char *, int *) __THROW
239 __RESOLV_DEPRECATED;
240 const char * sym_ntos (const struct res_sym *, int, int *) __THROW
241 __RESOLV_DEPRECATED;
242 const char * sym_ntop (const struct res_sym *, int, int *) __THROW
243 __RESOLV_DEPRECATED;
244 int b64_ntop (const unsigned char *, size_t, char *, size_t)
245 __THROW;
246 int b64_pton (char const *, unsigned char *, size_t) __THROW;
247 int loc_aton (const char *__ascii, unsigned char *__binary) __THROW
248 __RESOLV_DEPRECATED;
249 const char * loc_ntoa (const unsigned char *__binary, char *__ascii) __THROW
250 __RESOLV_DEPRECATED;
251 int dn_skipname (const unsigned char *, const unsigned char *)
252 __THROW;
253 void putlong (uint32_t, unsigned char *) __THROW
254 __RESOLV_DEPRECATED_MSG ("use NS_PUT16 instead");
255 void putshort (uint16_t, unsigned char *) __THROW
256 __RESOLV_DEPRECATED_MSG ("use NS_PUT32 instead");
257 const char * p_class (int) __THROW __RESOLV_DEPRECATED;
258 const char * p_time (uint32_t) __THROW __RESOLV_DEPRECATED;
259 const char * p_type (int) __THROW __RESOLV_DEPRECATED;
260 const char * p_rcode (int) __THROW __RESOLV_DEPRECATED;
261 const unsigned char * p_cdnname (const unsigned char *, const unsigned char *,
262 int, FILE *) __THROW __RESOLV_DEPRECATED;
263 const unsigned char * p_cdname (const unsigned char *, const unsigned char *,
264 FILE *) __THROW __RESOLV_DEPRECATED;
265 const unsigned char * p_fqnname (const unsigned char *__cp,
266 const unsigned char *__msg,
267 int, char *, int) __THROW __RESOLV_DEPRECATED;
268 const unsigned char * p_fqname (const unsigned char *, const unsigned char *,
269 FILE *) __THROW __RESOLV_DEPRECATED;
270 const char * p_option (unsigned long __option) __THROW __RESOLV_DEPRECATED;
271 int dn_count_labels (const char *) __THROW __RESOLV_DEPRECATED;
272 int dn_comp (const char *, unsigned char *, int, unsigned char **,
273 unsigned char **) __THROW;
274 int dn_expand (const unsigned char *, const unsigned char *,
275 const unsigned char *, char *, int) __THROW;
276 unsigned int res_randomid (void) __THROW
277 __RESOLV_DEPRECATED_MSG ("use getentropy instead");
278 int res_nameinquery (const char *, int, int,
279 const unsigned char *,
280 const unsigned char *) __THROW
281 __RESOLV_DEPRECATED;
282 int res_queriesmatch (const unsigned char *,
283 const unsigned char *,
284 const unsigned char *,
285 const unsigned char *) __THROW
286 __RESOLV_DEPRECATED;
287 /* Things involving a resolver context. */
288 int res_ninit (res_state) __THROW;
289 void fp_resstat (const res_state, FILE *) __THROW
290 __RESOLV_DEPRECATED;
291 const char * res_hostalias (const res_state, const char *, char *, size_t)
292 __THROW __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead");
293 int res_nquery (res_state, const char *, int, int,
294 unsigned char *, int) __THROW;
295 int res_nsearch (res_state, const char *, int, int,
296 unsigned char *, int) __THROW;
297 int res_nquerydomain (res_state, const char *, const char *, int,
298 int, unsigned char *, int) __THROW;
299 int res_nmkquery (res_state, int, const char *, int, int,
300 const unsigned char *, int,
301 const unsigned char *, unsigned char *, int)
302 __THROW;
303 int res_nsend (res_state, const unsigned char *, int,
304 unsigned char *, int) __THROW;
305 void res_nclose (res_state) __THROW;
306
307 __END_DECLS
308
309 #endif /* !_RESOLV_H_ */
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