6 * Copyright (c) 1983, 1987, 1989, 1993
7 * The Regents of the University of California. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
40 * Permission to use, copy, modify, and distribute this software for any
41 * purpose with or without fee is hereby granted, provided that the above
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43 * the name of Digital Equipment Corporation not be used in advertising or
44 * publicity pertaining to distribution of the document or software without
45 * specific, written prior permission.
47 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
48 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
49 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
50 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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52 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
53 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
58 * @(#)resolv.h 8.1 (Berkeley) 6/2/93
59 * From Id: resolv.h,v 4.9.1.2 1993/05/17 09:59:01 vixie Exp
60 * $Id: resolv.h,v 1.7 1996/08/29 20:00:58 peter Exp $
68 #ifndef __SYS_W32API_H
69 #include <sys/w32api.h>
73 #include <sys/param.h>
76 #ifndef __SYS_WTYPES_H
77 #include <sys/wtypes.h>
81 #include <sys/cdefs.h>
86 * revision information. this is the release date in YYYYMMDD format.
87 * it can change every day so the right thing to do with it is use it
88 * in preprocessor commands such as "#if (__RES > 19931104)". do not
89 * compare for equality; rather, use it to determine whether your resolver
90 * is new enough to contain a certain feature.
93 #define __RES 19960229
96 * Resolver configuration file.
97 * Normally not present, but may contain the address of the
98 * inital name server(s) to query and the domain search list.
101 #ifndef _PATH_RESCONF
102 #define _PATH_RESCONF "/etc/resolv.conf"
106 * Global defines and variables for resolver stub.
108 #define MAXNS 3 /* max # name servers we'll track */
109 #define MAXDFLSRCH 3 /* # default domain levels to try */
110 #define MAXDNSRCH 6 /* max # domains in search path */
111 #define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
113 #define RES_TIMEOUT 5 /* min. seconds between retries */
114 #define MAXRESOLVSORT 10 /* number of net to sort on */
115 #define RES_MAXNDOTS 15 /* should reflect bit field size */
118 int retrans; /* retransmition time interval */
119 int retry; /* number of times to retransmit */
120 u_long options; /* option flags - see below. */
121 int nscount; /* number of name servers */
123 nsaddr_list[MAXNS]; /* address of name server */
124 #define nsaddr nsaddr_list[0] /* for backward compatibility */
125 u_short id; /* current packet id */
126 char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
127 char defdname[MAXDNAME]; /* default domain */
128 u_long pfcode; /* RES_PRF_ flags - see below. */
129 unsigned ndots:4; /* threshold for initial abs. query */
130 unsigned nsort:4; /* number of elements in sort_list[] */
135 } sort_list[MAXRESOLVSORT];
136 char pad[72]; /* On an i386 this means 512b total. */
140 * Resolver options (keep these in synch with res_debug.c, please)
142 #define RES_INIT 0x00000001 /* address initialized */
143 #define RES_DEBUG 0x00000002 /* print debug messages */
144 #define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/
145 #define RES_USEVC 0x00000008 /* use virtual circuit */
146 #define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */
147 #define RES_IGNTC 0x00000020 /* ignore truncation errors */
148 #define RES_RECURSE 0x00000040 /* recursion desired */
149 #define RES_DEFNAMES 0x00000080 /* use default domain name */
150 #define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */
151 #define RES_DNSRCH 0x00000200 /* search up local domain tree */
152 #define RES_INSECURE1 0x00000400 /* type 1 security disabled */
153 #define RES_INSECURE2 0x00000800 /* type 2 security disabled */
154 #define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */
155 #define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */
157 #define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
160 * Resolver "pfcode" values. Used by dig.
162 #define RES_PRF_STATS 0x00000001
164 #define RES_PRF_CLASS 0x00000004
165 #define RES_PRF_CMD 0x00000008
166 #define RES_PRF_QUES 0x00000010
167 #define RES_PRF_ANS 0x00000020
168 #define RES_PRF_AUTH 0x00000040
169 #define RES_PRF_ADD 0x00000080
170 #define RES_PRF_HEAD1 0x00000100
171 #define RES_PRF_HEAD2 0x00000200
172 #define RES_PRF_TTLID 0x00000400
173 #define RES_PRF_HEADX 0x00000800
174 #define RES_PRF_QUERY 0x00001000
175 #define RES_PRF_REPLY 0x00002000
176 #define RES_PRF_INIT 0x00004000
179 /* hooks are still experimental as of 4.9.2 */
188 typedef res_sendhookact (*res_send_qhook)(struct sockaddr_in * const *ns,
189 const u_char **query,
195 typedef res_sendhookact (*res_send_rhook)(const struct sockaddr_in *ns,
202 W32_DATA struct __res_state _res;
204 W32_DATA int h_errno;
206 /* Private routines shared between libc/net, named, nslookup and others. */
207 #define res_hnok __res_hnok
208 #define res_ownok __res_ownok
209 #define res_mailok __res_mailok
210 #define res_dnok __res_dnok
211 #define loc_ntoa __loc_ntoa
212 #define loc_aton __loc_aton
213 #define dn_skipname __dn_skipname
214 #define fp_query __fp_query
215 #define fp_nquery __fp_nquery
216 #define hostalias __hostalias
217 #define putlong __putlong
218 #define putshort __putshort
219 #define p_class __p_class
220 #define p_time __p_time
221 #define p_type __p_type
222 #define p_cdnname __p_cdnname
223 #define p_cdname __p_cdname
224 #define p_fqname __p_fqname
226 #define p_option __p_option
227 #define res_randomid __res_randomid
228 #define res_isourserver __res_isourserver
229 #define res_nameinquery __res_nameinquery
230 #define res_queriesmatch __res_queriesmatch
234 W32_FUNC int __res_hnok (const char *);
235 W32_FUNC int __res_ownok (const char *);
236 W32_FUNC int __res_mailok (const char *);
237 W32_FUNC int __res_dnok (const char *);
238 W32_FUNC int __loc_aton (const char *ascii, u_char *binary);
239 W32_FUNC char * __loc_ntoa (const u_char *binary, char *ascii);
240 W32_FUNC int __dn_skipname(const u_char *, const u_char *);
241 W32_FUNC void __fp_resstat (struct __res_state *, FILE *);
242 W32_FUNC void __fp_query (const u_char *, FILE *);
243 W32_FUNC void __fp_nquery (const u_char *, int, FILE *);
244 W32_FUNC char *__hostalias (const char *);
245 W32_FUNC void __putlong (u_long, u_char *);
246 W32_FUNC void __putshort (u_short, u_char *);
247 W32_FUNC char *__p_time (u_long);
248 W32_FUNC void __p_query (const u_char *);
250 W32_FUNC const u_char *__p_cdnname (const u_char *, const u_char *, int, FILE *);
251 W32_FUNC const u_char *__p_cdname (const u_char *, const u_char *, FILE *);
252 W32_FUNC const u_char *__p_fqname (const u_char *, const u_char *, FILE *);
253 W32_FUNC const u_char *__p_rr (const u_char *, const u_char *, FILE *);
254 W32_FUNC const char *__p_type (int);
255 W32_FUNC const char *__p_class (int);
256 W32_FUNC const char *__p_option (u_long option);
258 W32_FUNC int dn_comp (const char *, u_char *, int, u_char **, u_char **);
259 W32_FUNC int dn_expand (const u_char *, const u_char *, const u_char *, char *, int);
261 W32_FUNC int res_init (void);
262 W32_FUNC u_short res_randomid (void);
263 W32_FUNC int res_query (const char *, int, int, u_char *, int);
264 W32_FUNC int res_search (const char *, int, int, u_char *, int);
265 W32_FUNC int res_querydomain (const char *, const char *, int, int, u_char *, int);
266 W32_FUNC int res_mkquery (int, const char *, int, int, const u_char *, int, const u_char *, u_char *, int);
267 W32_FUNC int res_send (const u_char *, int, u_char *, int);
268 W32_FUNC int res_isourserver (const struct sockaddr_in *);
269 W32_FUNC int res_nameinquery (const char *, int, int, const u_char *, const u_char *);
270 W32_FUNC int res_queriesmatch(const u_char *, const u_char *, const u_char *, const u_char *);
272 W32_FUNC void res_send_setqhook (res_send_qhook hook);
273 W32_FUNC void res_send_setrhook (res_send_rhook hook);
277 #endif /* !_RESOLV_H_ */