source: trunk/src/emx/include/resolv.h@ 2410

Last change on this file since 2410 was 1994, checked in by bird, 20 years ago

FreeBSD 5.3
  • Property cvs2svn:cvs-rev set to 1.7
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 15.0 KB
Line 
1/* resolv.h,v 1.5 2004/09/14 22:27:35 bird Exp */
2/** @file
3 * FreeBSD 5.3
4 * @changed bird: For IGCC.
5 */
6/*-
7 * Copyright (c) 1983, 1987, 1989, 1993
8 * The Regents of the University of California. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 */
38
39/*
40 * Portions Copyright (c) 1996 by Internet Software Consortium.
41 *
42 * Permission to use, copy, modify, and distribute this software for any
43 * purpose with or without fee is hereby granted, provided that the above
44 * copyright notice and this permission notice appear in all copies.
45 *
46 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
47 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
48 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
49 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
50 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
51 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
52 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
53 * SOFTWARE.
54 */
55
56/*
57 * @(#)resolv.h 8.1 (Berkeley) 6/2/93
58 * From Id: resolv.h,v 8.12 1998/04/28 19:36:46 halley Exp $
59 * $FreeBSD: src/include/resolv.h,v 1.25 2004/03/15 17:08:28 des Exp $
60 */
61
62#ifndef _RESOLV_H_
63#define _RESOLV_H_
64
65/* toolkit includes a bunch of headers */
66#ifndef TCPV40HDRS
67#include <sys/param.h>
68#include <types.h> /* bird - IBM header fancies this one */
69#include <sys/types.h>
70#include <sys/cdefs.h>
71#include <sys/socket.h>
72#include <stdio.h>
73#ifdef __USE_LIBC_TCPIP
74#include <netinet/in.h> /* for the struct __res_state */
75#endif
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 19960801
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 "/@unixroot/etc/resolv.conf"
95#endif
96#endif /* TCPV40HDRS */
97
98/*
99 * Global defines and variables for resolver stub.
100 */
101#define MAXNS 3 /* max # name servers we'll track */
102#define MAXDFLSRCH 3 /* # default domain levels to try */
103#ifdef TCPV40HDRS
104#define MAXDNSRCH 3 /* max # domains in search path */
105#else
106#define MAXDNSRCH 6 /* max # domains in search path */
107#endif
108#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
109
110#ifdef __USE_LIBC_TCPIP
111#define RES_TIMEOUT 5 /* min. seconds between retries */
112#else
113#define RES_TIMEOUT 4 /* min. seconds between retries */
114#endif
115#ifndef TCPV40HDRS
116#define MAXRESOLVSORT 10 /* number of net to sort on */
117#define RES_MAXNDOTS 15 /* should reflect bit field size */
118#endif
119#ifdef __USE_LIBC_TCPIP
120#define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */
121#define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */
122#endif
123
124#ifndef TCPV40HDRS
125
126#pragma pack(4)
127struct __res_state {
128 int retrans; /* retransmition time interval */
129 int retry; /* number of times to retransmit */
130 u_long options; /* option flags - see below. */
131 int nscount; /* number of name servers */
132 struct sockaddr_in
133 nsaddr_list[MAXNS]; /* address of name server */
134#define nsaddr nsaddr_list[0] /* for backward compatibility */
135 u_short id; /* current message id */
136 char defdname[256]; /* default domain (deprecated) */
137 char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
138 u_long pfcode; /* RES_PRF_ flags - see below. */
139 unsigned ndots:4; /* threshold for initial abs. query */
140 unsigned nsort:4; /* number of elements in sort_list[] */
141 char unused[3];
142 struct {
143 struct in_addr addr;
144 u_int32_t mask;
145 } sort_list[MAXRESOLVSORT];
146 char pad[72]; /* on an i386 this means 512b total */
147};
148#pragma pack()
149
150#if 0 /* OS/2 doesn't implement INET6, yet :-) */
151/* for INET6 */
152/*
153 * replacement of __res_state, separated to keep binary compatibility.
154 */
155struct __res_state_ext {
156 struct sockaddr_storage nsaddr_list[MAXNS];
157 struct {
158 int af; /* address family for addr, mask */
159 union {
160 struct in_addr ina;
161 struct in6_addr in6a;
162 } addr, mask;
163 } sort_list[MAXRESOLVSORT];
164};
165#endif /* Not implemented */
166
167#else /* TCPV40HDRS */
168
169#pragma pack(4)
170struct state {
171 int retrans; /* retransmition time interval */
172 int retry; /* number of times to retransmit */
173 long options; /* option flags - see below. */
174 int nscount; /* number of name servers */
175 struct sockaddr_in nsaddr_list[MAXNS]; /* address of name server */
176#define nsaddr nsaddr_list[0] /* for backward compatibility */
177 u_short id; /* current package id */
178 char defdname[MAXDNAME]; /* default domain */
179 char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
180};
181#pragma pack()
182
183#endif
184
185/*
186 * Resolver options (keep these in synch with res_debug.c, please)
187 */
188#define RES_INIT 0x00000001 /* address initialized */
189#define RES_DEBUG 0x00000002 /* print debug messages */
190#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/
191#define RES_USEVC 0x00000008 /* use virtual circuit */
192#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */
193#define RES_IGNTC 0x00000020 /* ignore truncation errors */
194#define RES_RECURSE 0x00000040 /* recursion desired */
195#define RES_DEFNAMES 0x00000080 /* use default domain name */
196#define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */
197#define RES_DNSRCH 0x00000200 /* search up local domain tree */
198#if !defined(TCPV40HDRS)
199#define RES_INSECURE1 0x00000400 /* type 1 security disabled */
200#define RES_INSECURE2 0x00000800 /* type 2 security disabled */
201#define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */
202#define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */
203#endif /* !TCPV40HDRS */
204/** @todo #define RES_USE_EDNS0 0x40000000*/ /* use EDNS0 */
205
206#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
207
208#ifndef TCPV40HDRS
209/*
210 * Resolver "pfcode" values. Used by dig.
211 */
212#define RES_PRF_STATS 0x00000001
213/** @todo #define RES_PRF_UPDATE 0x00000002*/
214#define RES_PRF_CLASS 0x00000004
215#define RES_PRF_CMD 0x00000008
216#define RES_PRF_QUES 0x00000010
217#define RES_PRF_ANS 0x00000020
218#define RES_PRF_AUTH 0x00000040
219#define RES_PRF_ADD 0x00000080
220#define RES_PRF_HEAD1 0x00000100
221#define RES_PRF_HEAD2 0x00000200
222#define RES_PRF_TTLID 0x00000400
223#define RES_PRF_HEADX 0x00000800
224#define RES_PRF_QUERY 0x00001000
225#define RES_PRF_REPLY 0x00002000
226#define RES_PRF_INIT 0x00004000
227/* 0x00008000 */
228
229typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
230 res_sendhookact;
231
232typedef res_sendhookact (* TCPCALL res_send_qhook)(struct sockaddr_in * const *ns,
233 const u_char **query,
234 int *querylen,
235 u_char *ans,
236 int anssiz,
237 int *resplen);
238
239typedef res_sendhookact (* TCPCALL res_send_rhook)(const struct sockaddr_in *ns,
240 const u_char *query,
241 int querylen,
242 u_char *ans,
243 int anssiz,
244 int *resplen);
245
246#pragma pack(4) /* not necessary */
247struct res_sym {
248 int number; /* Identifying number, like T_MX */
249 char * name; /* Its symbolic name, like "MX" */
250 char * humanname; /* Its fun name, like "mail exchanger" */
251};
252#pragma pack()
253
254__BEGIN_DECLS
255extern struct __res_state _ress[2];
256#define _res (_ress[0])
257/** @todo threaded stuff.... */
258__END_DECLS
259
260extern const struct res_sym __p_class_syms[];
261extern const struct res_sym __p_type_syms[];
262
263/* Private routines shared between libc/net, named, nslookup and others. */
264#define res_hnok __res_hnok
265#define res_ownok __res_ownok
266#define res_mailok __res_mailok
267#define res_dnok __res_dnok
268#define sym_ston __sym_ston
269#define sym_ntos __sym_ntos
270#define sym_ntop __sym_ntop
271#define b64_ntop __b64_ntop
272#define b64_pton __b64_pton
273#define loc_ntoa __loc_ntoa
274#define loc_aton __loc_aton
275#define fp_resstat __fp_resstat
276#define p_query __p_query
277#define dn_skipname __dn_skipname
278/* duplicate in FreeBSD 5.3 */
279#define fp_query __fp_query
280#define fp_nquery __fp_nquery
281#define hostalias __hostalias
282#define putlong __putlong
283#define putshort __putshort
284#define p_class __p_class
285#define p_time __p_time
286#define p_type __p_type
287/* duplicate in FreeBSD 5.3 */
288#define p_cdnname __p_cdnname
289/*#define p_section __p_section*/
290#define p_cdname __p_cdname
291#define p_fqnname __p_fqnname
292#define p_fqname __p_fqname
293#define p_option __p_option
294#define p_secstodate __p_secstodate
295#define dn_count_labels __dn_count_labels
296#define dn_comp __dn_comp
297#define dn_expand __dn_expand
298#define res_init __res_init
299#define res_randomid __res_randomid
300#define res_query __res_query
301#define res_search __res_search
302#define res_querydomain __res_querydomain
303#define res_mkquery __res_mkquery
304#define res_send __res_send
305#define res_isourserver __res_isourserver
306#define res_nameinquery __res_nameinquery
307#define res_queriesmatch __res_queriesmatch
308#define res_close __res_close
309/*#define res_opt __res_opt
310#define res_mkupdate __res_mkupdate
311#define res_mkupdrec __res_mkupdrec
312#define res_freeupdrec __res_freeupdrec
313*/
314
315/* not in FreeBSD 5.3 header */
316#define p_rr __p_rr
317
318
319__BEGIN_DECLS
320int TCPCALL res_hnok(const char *);
321int TCPCALL res_ownok(const char *);
322int TCPCALL res_mailok(const char *);
323int TCPCALL res_dnok(const char *);
324int TCPCALL sym_ston(const struct res_sym *, char *, int *);
325const char * TCPCALL sym_ntos(const struct res_sym *, int, int *);
326const char * TCPCALL sym_ntop(const struct res_sym *, int, int *);
327int TCPCALL b64_ntop(u_char const *, size_t, char *, size_t);
328int TCPCALL b64_pton(char const *, u_char *, size_t);
329int TCPCALL loc_aton(const char *, u_char *);
330const char * TCPCALL loc_ntoa(const u_char *, char *);
331int TCPCALL dn_skipname(const u_char *, const u_char *);
332void TCPCALL fp_resstat(struct __res_state *, int);
333void TCPCALL fp_query(const u_char *, int);
334void TCPCALL fp_nquery(const u_char *, int, int);
335const char * TCPCALL hostalias(const char *);
336void TCPCALL putlong(u_int32_t, u_char *);
337void TCPCALL putshort(u_int16_t, u_char *);
338const char * TCPCALL p_class(int);
339const char * TCPCALL p_time(u_int32_t);
340const char * TCPCALL p_type(int);
341void TCPCALL p_query(const u_char *);
342const u_char * TCPCALL p_cdnname(const u_char *, const u_char *, int, int);
343const u_char * TCPCALL p_cdname(const u_char *, const u_char *, int);
344const u_char * TCPCALL p_fqnname(const u_char *cp, const u_char *msg,
345 int, char *, int);
346const u_char * TCPCALL p_fqname(const u_char *, const u_char *, int);
347const char * TCPCALL p_option(u_long option);
348char * TCPCALL p_secstodate(u_long);
349int TCPCALL dn_count_labels(char *);
350int TCPCALL dn_comp(const char *, u_char *, int, u_char **, u_char **);
351int TCPCALL dn_expand(const u_char *, const u_char *, const u_char *,
352 char *, int);
353int TCPCALL res_init(void);
354u_int TCPCALL res_randomid(void);
355int TCPCALL res_query(const char *, int, int, u_char *, int);
356int TCPCALL res_search(const char *, int, int, u_char *, int);
357int TCPCALL res_querydomain(const char *, const char *, int, int,
358 u_char *, int);
359int TCPCALL res_mkquery(int, const char *, int, int, const u_char *, int,
360 const u_char *, u_char *, int);
361int TCPCALL res_send(const u_char *, int, u_char *, int);
362int TCPCALL res_isourserver(const struct sockaddr_in *);
363int TCPCALL res_nameinquery(const char *, int, int,
364 const u_char *, const u_char *);
365int TCPCALL res_queriesmatch(const u_char *, const u_char *,
366 const u_char *, const u_char *);
367void TCPCALL res_close(void);
368/** @todo int res_opt(int, u_char *, int, int); */
369/** @todo const char * p_section(int, int); */
370/* XXX These must be exported for BIND4 compatibility. */
371/** @todo void __putlong(u_int32_t, u_char *); */
372/** @todo void __putshort(u_int16_t, u_char *); */
373/** @todo u_int32_t _getlong(const u_char *); */
374/** @todo u_int16_t _getshort(const u_char *); */
375/* XXX The following depend on the ns_updrec typedef in arpa/nameser.h */
376#ifdef _ARPA_NAMESER_H_
377/** @todo int res_update(ns_updrec *); */
378/** @todo int res_mkupdate(ns_updrec *, u_char *, int); */
379/** @todo ns_updrec * res_mkupdrec(int, const char *, u_int, u_int, u_long); */
380/** @todo void res_freeupdrec(ns_updrec *); */
381#endif
382
383
384/* not in FreeBSD 5.3 */
385const u_char * TCPCALL p_rr(const u_char *, const u_char *, int);
386int TCPCALL dn_find(u_char *exp_dn, u_char *msg,
387 u_char **dnptrs, u_char **lastdnptr);
388
389__END_DECLS
390
391#else /* TCPV40HDRS */
392
393extern struct state _res;
394
395#endif /* TCPV40HDRS */
396
397
398#endif /* !_RESOLV_H_ */
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