Line data Source code
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 : * inital 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 :
136 : #define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH)
137 :
138 : /*
139 : * Resolver "pfcode" values. Used by dig.
140 : */
141 : #define RES_PRF_STATS 0x00000001
142 : #define RES_PRF_UPDATE 0x00000002
143 : #define RES_PRF_CLASS 0x00000004
144 : #define RES_PRF_CMD 0x00000008
145 : #define RES_PRF_QUES 0x00000010
146 : #define RES_PRF_ANS 0x00000020
147 : #define RES_PRF_AUTH 0x00000040
148 : #define RES_PRF_ADD 0x00000080
149 : #define RES_PRF_HEAD1 0x00000100
150 : #define RES_PRF_HEAD2 0x00000200
151 : #define RES_PRF_TTLID 0x00000400
152 : #define RES_PRF_HEADX 0x00000800
153 : #define RES_PRF_QUERY 0x00001000
154 : #define RES_PRF_REPLY 0x00002000
155 : #define RES_PRF_INIT 0x00004000
156 : /* 0x00008000 */
157 :
158 : /* Things involving an internal (static) resolver context. */
159 : __BEGIN_DECLS
160 : extern struct __res_state *__res_state(void) __attribute__ ((__const__));
161 : __END_DECLS
162 : #define _res (*__res_state())
163 :
164 : #define fp_nquery __fp_nquery
165 : #define fp_query __fp_query
166 : #define hostalias __hostalias
167 : #define p_query __p_query
168 : #define res_close __res_close
169 : #define res_init __res_init
170 : #define res_isourserver __res_isourserver
171 :
172 : #ifdef _LIBC
173 : # define __RESOLV_DEPRECATED
174 : # define __RESOLV_DEPRECATED_MSG(msg)
175 : #else
176 : # define __RESOLV_DEPRECATED __attribute_deprecated__
177 : # define __RESOLV_DEPRECATED_MSG(msg) __attribute_deprecated_msg__ (msg)
178 : #endif
179 :
180 : __BEGIN_DECLS
181 : void fp_nquery (const unsigned char *, int, FILE *) __THROW
182 : __RESOLV_DEPRECATED;
183 : void fp_query (const unsigned char *, FILE *) __THROW
184 : __RESOLV_DEPRECATED;
185 : const char * hostalias (const char *) __THROW
186 : __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead");
187 : void p_query (const unsigned char *) __THROW
188 : __RESOLV_DEPRECATED;
189 0 : void res_close (void) __THROW;
190 0 : int res_init (void) __THROW;
191 0 : int res_isourserver (const struct sockaddr_in *) __THROW
192 : __RESOLV_DEPRECATED;
193 : int res_mkquery (int, const char *, int, int,
194 : const unsigned char *, int, const unsigned char *,
195 : unsigned char *, int) __THROW;
196 0 : int res_query (const char *, int, int, unsigned char *, int)
197 0 : __THROW;
198 : int res_querydomain (const char *, const char *, int, int,
199 : unsigned char *, int) __THROW;
200 0 : int res_search (const char *, int, int, unsigned char *, int)
201 0 : __THROW;
202 : int res_send (const unsigned char *, int, unsigned char *, int)
203 : __THROW;
204 : __END_DECLS
205 :
206 : #define b64_ntop __b64_ntop
207 : #define b64_pton __b64_pton
208 : #define dn_count_labels __dn_count_labels
209 : #define fp_resstat __fp_resstat
210 : #define loc_aton __loc_aton
211 : #define loc_ntoa __loc_ntoa
212 : #define p_cdname __p_cdname
213 : #define p_cdnname __p_cdnname
214 : #define p_class __p_class
215 : #define p_fqname __p_fqname
216 : #define p_fqnname __p_fqnname
217 : #define p_option __p_option
218 : #define p_time __p_time
219 : #define p_type __p_type
220 : #define p_rcode __p_rcode
221 : #define putlong __putlong
222 : #define putshort __putshort
223 : #define res_hostalias __res_hostalias
224 : #define res_nameinquery __res_nameinquery
225 : #define res_nclose __res_nclose
226 : #define res_ninit __res_ninit
227 : #define res_queriesmatch __res_queriesmatch
228 : #define res_randomid __res_randomid
229 : #define sym_ntop __sym_ntop
230 : #define sym_ntos __sym_ntos
231 : #define sym_ston __sym_ston
232 : __BEGIN_DECLS
233 : int res_hnok (const char *) __THROW;
234 : int res_ownok (const char *) __THROW;
235 : int res_mailok (const char *) __THROW;
236 : int res_dnok (const char *) __THROW;
237 : int sym_ston (const struct res_sym *, const char *, int *) __THROW
238 : __RESOLV_DEPRECATED;
239 : const char * sym_ntos (const struct res_sym *, int, int *) __THROW
240 : __RESOLV_DEPRECATED;
241 : const char * sym_ntop (const struct res_sym *, int, int *) __THROW
242 : __RESOLV_DEPRECATED;
243 : int b64_ntop (const unsigned char *, size_t, char *, size_t)
244 : __THROW;
245 : int b64_pton (char const *, unsigned char *, size_t) __THROW;
246 : int loc_aton (const char *__ascii, unsigned char *__binary) __THROW
247 : __RESOLV_DEPRECATED;
248 : const char * loc_ntoa (const unsigned char *__binary, char *__ascii) __THROW
249 : __RESOLV_DEPRECATED;
250 : int dn_skipname (const unsigned char *, const unsigned char *)
251 : __THROW;
252 : void putlong (uint32_t, unsigned char *) __THROW
253 : __RESOLV_DEPRECATED_MSG ("use NS_PUT16 instead");
254 : void putshort (uint16_t, unsigned char *) __THROW
255 : __RESOLV_DEPRECATED_MSG ("use NS_PUT32 instead");
256 : const char * p_class (int) __THROW __RESOLV_DEPRECATED;
257 : const char * p_time (uint32_t) __THROW __RESOLV_DEPRECATED;
258 : const char * p_type (int) __THROW __RESOLV_DEPRECATED;
259 : const char * p_rcode (int) __THROW __RESOLV_DEPRECATED;
260 : const unsigned char * p_cdnname (const unsigned char *, const unsigned char *,
261 : int, FILE *) __THROW __RESOLV_DEPRECATED;
262 : const unsigned char * p_cdname (const unsigned char *, const unsigned char *,
263 : FILE *) __THROW __RESOLV_DEPRECATED;
264 : const unsigned char * p_fqnname (const unsigned char *__cp,
265 : const unsigned char *__msg,
266 : int, char *, int) __THROW __RESOLV_DEPRECATED;
267 : const unsigned char * p_fqname (const unsigned char *, const unsigned char *,
268 : FILE *) __THROW __RESOLV_DEPRECATED;
269 : const char * p_option (unsigned long __option) __THROW __RESOLV_DEPRECATED;
270 : int dn_count_labels (const char *) __THROW __RESOLV_DEPRECATED;
271 : int dn_comp (const char *, unsigned char *, int, unsigned char **,
272 : unsigned char **) __THROW;
273 : int dn_expand (const unsigned char *, const unsigned char *,
274 : const unsigned char *, char *, int) __THROW;
275 : unsigned int res_randomid (void) __THROW
276 : __RESOLV_DEPRECATED_MSG ("use getentropy instead");
277 : int res_nameinquery (const char *, int, int,
278 : const unsigned char *,
279 : const unsigned char *) __THROW
280 : __RESOLV_DEPRECATED;
281 : int res_queriesmatch (const unsigned char *,
282 : const unsigned char *,
283 : const unsigned char *,
284 : const unsigned char *) __THROW
285 : __RESOLV_DEPRECATED;
286 : /* Things involving a resolver context. */
287 162 : int res_ninit (res_state) __THROW;
288 66326 : void fp_resstat (const res_state, FILE *) __THROW
289 : __RESOLV_DEPRECATED;
290 : const char * res_hostalias (const res_state, const char *, char *, size_t)
291 : __THROW __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead");
292 0 : int res_nquery (res_state, const char *, int, int,
293 0 : unsigned char *, int) __THROW;
294 594 : int res_nsearch (res_state, const char *, int, int,
295 66326 : unsigned char *, int) __THROW;
296 : int res_nquerydomain (res_state, const char *, const char *, int,
297 : int, unsigned char *, int) __THROW;
298 : int res_nmkquery (res_state, int, const char *, int, int,
299 : const unsigned char *, int,
300 : const unsigned char *, unsigned char *, int)
301 : __THROW;
302 : int res_nsend (res_state, const unsigned char *, int,
303 : unsigned char *, int) __THROW;
304 162 : void res_nclose (res_state) __THROW;
305 66326 :
306 : __END_DECLS
307 :
308 : #endif /* !_RESOLV_H_ */
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