xref: /freebsd/include/resolv.h (revision 046c3635cdb274a1f6ccec9933899f5b3bc043a2)
1f85162f0SHajimu UMEMOTO /*
2*046c3635SPedro F. Giffuni  * Portions Copyright (C) 2004, 2005, 2008, 2009  Internet Systems Consortium, Inc. ("ISC")
3*046c3635SPedro F. Giffuni  * Portions Copyright (C) 1995-2003  Internet Software Consortium.
4*046c3635SPedro F. Giffuni  *
5*046c3635SPedro F. Giffuni  * Permission to use, copy, modify, and/or distribute this software for any
6*046c3635SPedro F. Giffuni  * purpose with or without fee is hereby granted, provided that the above
7*046c3635SPedro F. Giffuni  * copyright notice and this permission notice appear in all copies.
8*046c3635SPedro F. Giffuni  *
9*046c3635SPedro F. Giffuni  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10*046c3635SPedro F. Giffuni  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11*046c3635SPedro F. Giffuni  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12*046c3635SPedro F. Giffuni  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13*046c3635SPedro F. Giffuni  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14*046c3635SPedro F. Giffuni  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15*046c3635SPedro F. Giffuni  * PERFORMANCE OF THIS SOFTWARE.
16*046c3635SPedro F. Giffuni  */
17*046c3635SPedro F. Giffuni 
18*046c3635SPedro F. Giffuni /*
19f85162f0SHajimu UMEMOTO  * Copyright (c) 1983, 1987, 1989
20f85162f0SHajimu UMEMOTO  *    The Regents of the University of California.  All rights reserved.
21f85162f0SHajimu UMEMOTO  *
22f85162f0SHajimu UMEMOTO  * Redistribution and use in source and binary forms, with or without
23f85162f0SHajimu UMEMOTO  * modification, are permitted provided that the following conditions
24f85162f0SHajimu UMEMOTO  * are met:
25f85162f0SHajimu UMEMOTO  * 1. Redistributions of source code must retain the above copyright
26f85162f0SHajimu UMEMOTO  *    notice, this list of conditions and the following disclaimer.
27f85162f0SHajimu UMEMOTO  * 2. Redistributions in binary form must reproduce the above copyright
28f85162f0SHajimu UMEMOTO  *    notice, this list of conditions and the following disclaimer in the
29f85162f0SHajimu UMEMOTO  *    documentation and/or other materials provided with the distribution.
30f85162f0SHajimu UMEMOTO  * 3. All advertising materials mentioning features or use of this software
31f85162f0SHajimu UMEMOTO  *    must display the following acknowledgement:
32f85162f0SHajimu UMEMOTO  * 	This product includes software developed by the University of
33f85162f0SHajimu UMEMOTO  * 	California, Berkeley and its contributors.
34f85162f0SHajimu UMEMOTO  * 4. Neither the name of the University nor the names of its contributors
35f85162f0SHajimu UMEMOTO  *    may be used to endorse or promote products derived from this software
36f85162f0SHajimu UMEMOTO  *    without specific prior written permission.
37f85162f0SHajimu UMEMOTO  *
38f85162f0SHajimu UMEMOTO  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
39f85162f0SHajimu UMEMOTO  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40f85162f0SHajimu UMEMOTO  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
41f85162f0SHajimu UMEMOTO  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
42f85162f0SHajimu UMEMOTO  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
43f85162f0SHajimu UMEMOTO  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
44f85162f0SHajimu UMEMOTO  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45f85162f0SHajimu UMEMOTO  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
46f85162f0SHajimu UMEMOTO  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
47f85162f0SHajimu UMEMOTO  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48f85162f0SHajimu UMEMOTO  * SUCH DAMAGE.
49f85162f0SHajimu UMEMOTO  */
50f85162f0SHajimu UMEMOTO 
51861249f5SHajimu UMEMOTO /*%
52f85162f0SHajimu UMEMOTO  *	@(#)resolv.h	8.1 (Berkeley) 6/2/93
53*046c3635SPedro F. Giffuni  *	$Id: resolv.h,v 1.30 2009/03/03 01:52:48 each Exp $
54f85162f0SHajimu UMEMOTO  */
55f85162f0SHajimu UMEMOTO 
56f85162f0SHajimu UMEMOTO #ifndef _RESOLV_H_
57f85162f0SHajimu UMEMOTO #define	_RESOLV_H_
58f85162f0SHajimu UMEMOTO 
59f85162f0SHajimu UMEMOTO #include <sys/param.h>
60f85162f0SHajimu UMEMOTO #if (!defined(BSD)) || (BSD < 199306)
61f85162f0SHajimu UMEMOTO # include <sys/bitypes.h>
62f85162f0SHajimu UMEMOTO #else
63f85162f0SHajimu UMEMOTO # include <sys/types.h>
64f85162f0SHajimu UMEMOTO #endif
65f85162f0SHajimu UMEMOTO #include <sys/cdefs.h>
66f85162f0SHajimu UMEMOTO #include <sys/socket.h>
67f85162f0SHajimu UMEMOTO #include <stdio.h>
68f85162f0SHajimu UMEMOTO #include <arpa/nameser.h>
69f85162f0SHajimu UMEMOTO 
70861249f5SHajimu UMEMOTO /*%
71f85162f0SHajimu UMEMOTO  * Revision information.  This is the release date in YYYYMMDD format.
72f85162f0SHajimu UMEMOTO  * It can change every day so the right thing to do with it is use it
73f85162f0SHajimu UMEMOTO  * in preprocessor commands such as "#if (__RES > 19931104)".  Do not
74f85162f0SHajimu UMEMOTO  * compare for equality; rather, use it to determine whether your resolver
75f85162f0SHajimu UMEMOTO  * is new enough to contain a certain feature.
76f85162f0SHajimu UMEMOTO  */
77f85162f0SHajimu UMEMOTO 
78*046c3635SPedro F. Giffuni #define	__RES	20090302
79f85162f0SHajimu UMEMOTO 
80861249f5SHajimu UMEMOTO /*%
81f85162f0SHajimu UMEMOTO  * This used to be defined in res_query.c, now it's in herror.c.
82f85162f0SHajimu UMEMOTO  * [XXX no it's not.  It's in irs/irs_data.c]
83f85162f0SHajimu UMEMOTO  * It was
84f85162f0SHajimu UMEMOTO  * never extern'd by any *.h file before it was placed here.  For thread
85f85162f0SHajimu UMEMOTO  * aware programs, the last h_errno value set is stored in res->h_errno.
86f85162f0SHajimu UMEMOTO  *
87f85162f0SHajimu UMEMOTO  * XXX:	There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO
88f85162f0SHajimu UMEMOTO  *	(and __h_errno_set) to the public via <resolv.h>.
89f85162f0SHajimu UMEMOTO  * XXX:	__h_errno_set is really part of IRS, not part of the resolver.
90f85162f0SHajimu UMEMOTO  *	If somebody wants to build and use a resolver that doesn't use IRS,
91f85162f0SHajimu UMEMOTO  *	what do they do?  Perhaps something like
92f85162f0SHajimu UMEMOTO  *		#ifdef WANT_IRS
93f85162f0SHajimu UMEMOTO  *		# define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
94f85162f0SHajimu UMEMOTO  *		#else
95f85162f0SHajimu UMEMOTO  *		# define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x))
96f85162f0SHajimu UMEMOTO  *		#endif
97f85162f0SHajimu UMEMOTO  */
98f85162f0SHajimu UMEMOTO 
99f85162f0SHajimu UMEMOTO #define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
100861249f5SHajimu UMEMOTO struct __res_state; /*%< forward */
101f85162f0SHajimu UMEMOTO __BEGIN_DECLS
102f85162f0SHajimu UMEMOTO void __h_errno_set(struct __res_state *res, int err);
103f85162f0SHajimu UMEMOTO __END_DECLS
104f85162f0SHajimu UMEMOTO 
105861249f5SHajimu UMEMOTO /*%
106f85162f0SHajimu UMEMOTO  * Resolver configuration file.
107f85162f0SHajimu UMEMOTO  * Normally not present, but may contain the address of the
108f85162f0SHajimu UMEMOTO  * initial name server(s) to query and the domain search list.
109f85162f0SHajimu UMEMOTO  */
110f85162f0SHajimu UMEMOTO 
111f85162f0SHajimu UMEMOTO #ifndef _PATH_RESCONF
112f85162f0SHajimu UMEMOTO #define _PATH_RESCONF        "/etc/resolv.conf"
113f85162f0SHajimu UMEMOTO #endif
114f85162f0SHajimu UMEMOTO 
115f85162f0SHajimu UMEMOTO typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
116f85162f0SHajimu UMEMOTO 	res_sendhookact;
117f85162f0SHajimu UMEMOTO 
118f85162f0SHajimu UMEMOTO #ifndef __PMT
119f85162f0SHajimu UMEMOTO #if defined(__STDC__) || defined(__cplusplus)
120f85162f0SHajimu UMEMOTO #define __PMT(args) args
121f85162f0SHajimu UMEMOTO #else
122f85162f0SHajimu UMEMOTO #define __PMT(args) ()
123f85162f0SHajimu UMEMOTO #endif
124f85162f0SHajimu UMEMOTO #endif
125f85162f0SHajimu UMEMOTO 
126f85162f0SHajimu UMEMOTO typedef res_sendhookact (*res_send_qhook)__PMT((struct sockaddr * const *,
127f85162f0SHajimu UMEMOTO 						const u_char **, int *,
128f85162f0SHajimu UMEMOTO 						u_char *, int, int *));
129f85162f0SHajimu UMEMOTO 
130f85162f0SHajimu UMEMOTO typedef res_sendhookact (*res_send_rhook)__PMT((const struct sockaddr *,
131f85162f0SHajimu UMEMOTO 						const u_char *, int, u_char *,
132f85162f0SHajimu UMEMOTO 						int, int *));
133f85162f0SHajimu UMEMOTO 
134f85162f0SHajimu UMEMOTO struct res_sym {
135861249f5SHajimu UMEMOTO 	int		number;	   /*%< Identifying number, like T_MX */
136861249f5SHajimu UMEMOTO 	const char *	name;	   /*%< Its symbolic name, like "MX" */
137861249f5SHajimu UMEMOTO 	const char *	humanname; /*%< Its fun name, like "mail exchanger" */
138f85162f0SHajimu UMEMOTO };
139f85162f0SHajimu UMEMOTO 
140861249f5SHajimu UMEMOTO /*%
141f85162f0SHajimu UMEMOTO  * Global defines and variables for resolver stub.
142f85162f0SHajimu UMEMOTO  */
143861249f5SHajimu UMEMOTO #define	MAXNS			3	/*%< max # name servers we'll track */
144861249f5SHajimu UMEMOTO #define	MAXDFLSRCH		3	/*%< # default domain levels to try */
145861249f5SHajimu UMEMOTO #define	MAXDNSRCH		6	/*%< max # domains in search path */
146861249f5SHajimu UMEMOTO #define	LOCALDOMAINPARTS	2	/*%< min levels in name that is "local" */
147861249f5SHajimu UMEMOTO #define	RES_TIMEOUT		5	/*%< min. seconds between retries */
148861249f5SHajimu UMEMOTO #define	MAXRESOLVSORT		10	/*%< number of net to sort on */
149861249f5SHajimu UMEMOTO #define	RES_MAXNDOTS		15	/*%< should reflect bit field size */
150861249f5SHajimu UMEMOTO #define	RES_MAXRETRANS		30	/*%< only for resolv.conf/RES_OPTIONS */
151861249f5SHajimu UMEMOTO #define	RES_MAXRETRY		5	/*%< only for resolv.conf/RES_OPTIONS */
152861249f5SHajimu UMEMOTO #define	RES_DFLRETRY		2	/*%< Default #/tries. */
153861249f5SHajimu UMEMOTO #define	RES_MAXTIME		65535	/*%< Infinity, in milliseconds. */
154f85162f0SHajimu UMEMOTO struct __res_state_ext;
155f85162f0SHajimu UMEMOTO 
156f85162f0SHajimu UMEMOTO struct __res_state {
157861249f5SHajimu UMEMOTO 	int	retrans;	 	/*%< retransmission time interval */
158861249f5SHajimu UMEMOTO 	int	retry;			/*%< number of times to retransmit */
159f85162f0SHajimu UMEMOTO #ifdef sun
160861249f5SHajimu UMEMOTO 	u_int	options;		/*%< option flags - see below. */
161f85162f0SHajimu UMEMOTO #else
162861249f5SHajimu UMEMOTO 	u_long	options;		/*%< option flags - see below. */
163f85162f0SHajimu UMEMOTO #endif
164861249f5SHajimu UMEMOTO 	int	nscount;		/*%< number of name servers */
165f85162f0SHajimu UMEMOTO 	struct sockaddr_in
166861249f5SHajimu UMEMOTO 		nsaddr_list[MAXNS];	/*%< address of name server */
167861249f5SHajimu UMEMOTO #define	nsaddr	nsaddr_list[0]		/*%< for backward compatibility */
168861249f5SHajimu UMEMOTO 	u_short	id;			/*%< current message id */
169861249f5SHajimu UMEMOTO 	char	*dnsrch[MAXDNSRCH+1];	/*%< components of domain to search */
170861249f5SHajimu UMEMOTO 	char	defdname[256];		/*%< default domain (deprecated) */
171f85162f0SHajimu UMEMOTO #ifdef sun
172861249f5SHajimu UMEMOTO 	u_int	pfcode;			/*%< RES_PRF_ flags - see below. */
173f85162f0SHajimu UMEMOTO #else
174861249f5SHajimu UMEMOTO 	u_long	pfcode;			/*%< RES_PRF_ flags - see below. */
175f85162f0SHajimu UMEMOTO #endif
176861249f5SHajimu UMEMOTO 	unsigned ndots:4;		/*%< threshold for initial abs. query */
177861249f5SHajimu UMEMOTO 	unsigned nsort:4;		/*%< number of elements in sort_list[] */
178f85162f0SHajimu UMEMOTO 	char	unused[3];
179f85162f0SHajimu UMEMOTO 	struct {
180f85162f0SHajimu UMEMOTO 		struct in_addr	addr;
181f85162f0SHajimu UMEMOTO 		u_int32_t	mask;
182f85162f0SHajimu UMEMOTO 	} sort_list[MAXRESOLVSORT];
183861249f5SHajimu UMEMOTO 	res_send_qhook qhook;		/*%< query hook */
184861249f5SHajimu UMEMOTO 	res_send_rhook rhook;		/*%< response hook */
185861249f5SHajimu UMEMOTO 	int	res_h_errno;		/*%< last one set for this context */
186861249f5SHajimu UMEMOTO 	int	_vcsock;		/*%< PRIVATE: for res_send VC i/o */
187861249f5SHajimu UMEMOTO 	u_int	_flags;			/*%< PRIVATE: see below */
188*046c3635SPedro F. Giffuni 	u_char	_rnd[16];		/*%< PRIVATE: random state */
189861249f5SHajimu UMEMOTO 	u_int	_pad;			/*%< make _u 64 bit aligned */
190f85162f0SHajimu UMEMOTO 	union {
191f85162f0SHajimu UMEMOTO 		/* On an 32-bit arch this means 512b total. */
192*046c3635SPedro F. Giffuni 		char	pad[56 - 4*sizeof (int) - 2*sizeof (void *)];
193f85162f0SHajimu UMEMOTO 		struct {
194f85162f0SHajimu UMEMOTO 			u_int16_t		nscount;
195861249f5SHajimu UMEMOTO 			u_int16_t		nstimes[MAXNS];	/*%< ms. */
196f85162f0SHajimu UMEMOTO 			int			nssocks[MAXNS];
197861249f5SHajimu UMEMOTO 			struct __res_state_ext *ext;	/*%< extention for IPv6 */
198f85162f0SHajimu UMEMOTO 		} _ext;
199f85162f0SHajimu UMEMOTO 	} _u;
200f85162f0SHajimu UMEMOTO };
201f85162f0SHajimu UMEMOTO 
202f85162f0SHajimu UMEMOTO typedef struct __res_state *res_state;
203f85162f0SHajimu UMEMOTO 
204f85162f0SHajimu UMEMOTO union res_sockaddr_union {
205f85162f0SHajimu UMEMOTO 	struct sockaddr_in	sin;
206f85162f0SHajimu UMEMOTO #ifdef IN6ADDR_ANY_INIT
207f85162f0SHajimu UMEMOTO 	struct sockaddr_in6	sin6;
208f85162f0SHajimu UMEMOTO #endif
209f85162f0SHajimu UMEMOTO #ifdef ISC_ALIGN64
210861249f5SHajimu UMEMOTO 	int64_t			__align64;	/*%< 64bit alignment */
211f85162f0SHajimu UMEMOTO #else
212861249f5SHajimu UMEMOTO 	int32_t			__align32;	/*%< 32bit alignment */
213f85162f0SHajimu UMEMOTO #endif
214861249f5SHajimu UMEMOTO 	char			__space[128];   /*%< max size */
215f85162f0SHajimu UMEMOTO };
216f85162f0SHajimu UMEMOTO 
217861249f5SHajimu UMEMOTO /*%
218f85162f0SHajimu UMEMOTO  * Resolver flags (used to be discrete per-module statics ints).
219f85162f0SHajimu UMEMOTO  */
220861249f5SHajimu UMEMOTO #define	RES_F_VC	0x00000001	/*%< socket is TCP */
221861249f5SHajimu UMEMOTO #define	RES_F_CONN	0x00000002	/*%< socket is connected */
222861249f5SHajimu UMEMOTO #define	RES_F_EDNS0ERR	0x00000004	/*%< EDNS0 caused errors */
223861249f5SHajimu UMEMOTO #define	RES_F__UNUSED	0x00000008	/*%< (unused) */
224861249f5SHajimu UMEMOTO #define	RES_F_LASTMASK	0x000000F0	/*%< ordinal server of last res_nsend */
225861249f5SHajimu UMEMOTO #define	RES_F_LASTSHIFT	4		/*%< bit position of LASTMASK "flag" */
226f85162f0SHajimu UMEMOTO #define	RES_GETLAST(res) (((res)._flags & RES_F_LASTMASK) >> RES_F_LASTSHIFT)
227f85162f0SHajimu UMEMOTO 
228f85162f0SHajimu UMEMOTO /* res_findzonecut2() options */
229861249f5SHajimu UMEMOTO #define	RES_EXHAUSTIVE	0x00000001	/*%< always do all queries */
230861249f5SHajimu UMEMOTO #define	RES_IPV4ONLY	0x00000002	/*%< IPv4 only */
231861249f5SHajimu UMEMOTO #define	RES_IPV6ONLY	0x00000004	/*%< IPv6 only */
232f85162f0SHajimu UMEMOTO 
233861249f5SHajimu UMEMOTO /*%
234f85162f0SHajimu UMEMOTO  * Resolver options (keep these in synch with res_debug.c, please)
235f85162f0SHajimu UMEMOTO  */
236861249f5SHajimu UMEMOTO #define RES_INIT	0x00000001	/*%< address initialized */
237861249f5SHajimu UMEMOTO #define RES_DEBUG	0x00000002	/*%< print debug messages */
238861249f5SHajimu UMEMOTO #define RES_AAONLY	0x00000004	/*%< authoritative answers only (!IMPL)*/
239861249f5SHajimu UMEMOTO #define RES_USEVC	0x00000008	/*%< use virtual circuit */
240861249f5SHajimu UMEMOTO #define RES_PRIMARY	0x00000010	/*%< query primary server only (!IMPL) */
241861249f5SHajimu UMEMOTO #define RES_IGNTC	0x00000020	/*%< ignore trucation errors */
242861249f5SHajimu UMEMOTO #define RES_RECURSE	0x00000040	/*%< recursion desired */
243861249f5SHajimu UMEMOTO #define RES_DEFNAMES	0x00000080	/*%< use default domain name */
244861249f5SHajimu UMEMOTO #define RES_STAYOPEN	0x00000100	/*%< Keep TCP socket open */
245861249f5SHajimu UMEMOTO #define RES_DNSRCH	0x00000200	/*%< search up local domain tree */
246861249f5SHajimu UMEMOTO #define	RES_INSECURE1	0x00000400	/*%< type 1 security disabled */
247861249f5SHajimu UMEMOTO #define	RES_INSECURE2	0x00000800	/*%< type 2 security disabled */
248861249f5SHajimu UMEMOTO #define	RES_NOALIASES	0x00001000	/*%< shuts off HOSTALIASES feature */
249861249f5SHajimu UMEMOTO #define	RES_USE_INET6	0x00002000	/*%< use/map IPv6 in gethostbyname() */
250861249f5SHajimu UMEMOTO #define RES_ROTATE	0x00004000	/*%< rotate ns list after each query */
251861249f5SHajimu UMEMOTO #define	RES_NOCHECKNAME	0x00008000	/*%< do not check names for sanity. */
252861249f5SHajimu UMEMOTO #define	RES_KEEPTSIG	0x00010000	/*%< do not strip TSIG records */
253861249f5SHajimu UMEMOTO #define	RES_BLAST	0x00020000	/*%< blast all recursive servers */
2549aeb4147SHajimu UMEMOTO #define RES_NSID	0x00040000      /*%< request name server ID */
255861249f5SHajimu UMEMOTO #define RES_NOTLDQUERY	0x00100000	/*%< don't unqualified name as a tld */
256861249f5SHajimu UMEMOTO #define RES_USE_DNSSEC	0x00200000	/*%< use DNSSEC using OK bit in OPT */
257f85162f0SHajimu UMEMOTO /* #define RES_DEBUG2	0x00400000 */	/* nslookup internal */
258f85162f0SHajimu UMEMOTO /* KAME extensions: use higher bit to avoid conflict with ISC use */
259861249f5SHajimu UMEMOTO #define RES_USE_DNAME	0x10000000	/*%< use DNAME */
260861249f5SHajimu UMEMOTO #define RES_USE_EDNS0	0x40000000	/*%< use EDNS0 if configured */
261861249f5SHajimu UMEMOTO #define RES_NO_NIBBLE2	0x80000000	/*%< disable alternate nibble lookup */
262f85162f0SHajimu UMEMOTO 
263f85162f0SHajimu UMEMOTO #define RES_DEFAULT	(RES_RECURSE | RES_DEFNAMES | \
264f85162f0SHajimu UMEMOTO 			 RES_DNSRCH | RES_NO_NIBBLE2)
265f85162f0SHajimu UMEMOTO 
266861249f5SHajimu UMEMOTO /*%
267f85162f0SHajimu UMEMOTO  * Resolver "pfcode" values.  Used by dig.
268f85162f0SHajimu UMEMOTO  */
269f85162f0SHajimu UMEMOTO #define RES_PRF_STATS	0x00000001
270f85162f0SHajimu UMEMOTO #define RES_PRF_UPDATE	0x00000002
271f85162f0SHajimu UMEMOTO #define RES_PRF_CLASS   0x00000004
272f85162f0SHajimu UMEMOTO #define RES_PRF_CMD	0x00000008
273f85162f0SHajimu UMEMOTO #define RES_PRF_QUES	0x00000010
274f85162f0SHajimu UMEMOTO #define RES_PRF_ANS	0x00000020
275f85162f0SHajimu UMEMOTO #define RES_PRF_AUTH	0x00000040
276f85162f0SHajimu UMEMOTO #define RES_PRF_ADD	0x00000080
277f85162f0SHajimu UMEMOTO #define RES_PRF_HEAD1	0x00000100
278f85162f0SHajimu UMEMOTO #define RES_PRF_HEAD2	0x00000200
279f85162f0SHajimu UMEMOTO #define RES_PRF_TTLID	0x00000400
280f85162f0SHajimu UMEMOTO #define RES_PRF_HEADX	0x00000800
281f85162f0SHajimu UMEMOTO #define RES_PRF_QUERY	0x00001000
282f85162f0SHajimu UMEMOTO #define RES_PRF_REPLY	0x00002000
283f85162f0SHajimu UMEMOTO #define RES_PRF_INIT	0x00004000
284f85162f0SHajimu UMEMOTO #define RES_PRF_TRUNC	0x00008000
285f85162f0SHajimu UMEMOTO /*			0x00010000	*/
286f85162f0SHajimu UMEMOTO 
287f85162f0SHajimu UMEMOTO /* Things involving an internal (static) resolver context. */
288f85162f0SHajimu UMEMOTO #ifdef _REENTRANT
289f85162f0SHajimu UMEMOTO __BEGIN_DECLS
290f85162f0SHajimu UMEMOTO extern struct __res_state *__res_state(void);
291f85162f0SHajimu UMEMOTO __END_DECLS
292f85162f0SHajimu UMEMOTO #define _res (*__res_state())
293f85162f0SHajimu UMEMOTO #else
294f85162f0SHajimu UMEMOTO #ifdef __linux
295f85162f0SHajimu UMEMOTO __BEGIN_DECLS
296f85162f0SHajimu UMEMOTO extern struct __res_state * __res_state(void);
297f85162f0SHajimu UMEMOTO __END_DECLS
298f85162f0SHajimu UMEMOTO #endif
299f85162f0SHajimu UMEMOTO #ifndef __BIND_NOSTATIC
300f85162f0SHajimu UMEMOTO extern struct __res_state _res;
301f85162f0SHajimu UMEMOTO #endif
302f85162f0SHajimu UMEMOTO #endif
303f85162f0SHajimu UMEMOTO 
304f85162f0SHajimu UMEMOTO #ifndef __BIND_NOSTATIC
305f85162f0SHajimu UMEMOTO #define fp_nquery		__fp_nquery
306f85162f0SHajimu UMEMOTO #define fp_query		__fp_query
307f85162f0SHajimu UMEMOTO #define hostalias		__hostalias
308f85162f0SHajimu UMEMOTO #define p_query			__p_query
309f85162f0SHajimu UMEMOTO #define res_close		__res_close
310f85162f0SHajimu UMEMOTO #define res_init		__res_init
311f85162f0SHajimu UMEMOTO #define res_isourserver		__res_isourserver
312f85162f0SHajimu UMEMOTO #define res_mkquery		__res_mkquery
313f85162f0SHajimu UMEMOTO #define res_query		__res_query
314f85162f0SHajimu UMEMOTO #define res_querydomain		__res_querydomain
315f85162f0SHajimu UMEMOTO #define res_search		__res_search
316f85162f0SHajimu UMEMOTO #define res_send		__res_send
317f85162f0SHajimu UMEMOTO #define res_sendsigned		__res_sendsigned
318f85162f0SHajimu UMEMOTO 
319f85162f0SHajimu UMEMOTO __BEGIN_DECLS
320f85162f0SHajimu UMEMOTO void		fp_nquery __P((const u_char *, int, FILE *));
321f85162f0SHajimu UMEMOTO void		fp_query __P((const u_char *, FILE *));
322f85162f0SHajimu UMEMOTO const char *	hostalias __P((const char *));
323f85162f0SHajimu UMEMOTO void		p_query __P((const u_char *));
324f85162f0SHajimu UMEMOTO void		res_close __P((void));
325f85162f0SHajimu UMEMOTO int		res_init __P((void));
326f85162f0SHajimu UMEMOTO int		res_isourserver __P((const struct sockaddr_in *));
327f85162f0SHajimu UMEMOTO int		res_mkquery __P((int, const char *, int, int, const u_char *,
328f85162f0SHajimu UMEMOTO 				 int, const u_char *, u_char *, int));
329f85162f0SHajimu UMEMOTO int		res_query __P((const char *, int, int, u_char *, int));
330f85162f0SHajimu UMEMOTO int		res_querydomain __P((const char *, const char *, int, int,
331f85162f0SHajimu UMEMOTO 				     u_char *, int));
332f85162f0SHajimu UMEMOTO int		res_search __P((const char *, int, int, u_char *, int));
333f85162f0SHajimu UMEMOTO int		res_send __P((const u_char *, int, u_char *, int));
334f85162f0SHajimu UMEMOTO int		res_sendsigned __P((const u_char *, int, ns_tsig_key *,
335f85162f0SHajimu UMEMOTO 				    u_char *, int));
336f85162f0SHajimu UMEMOTO __END_DECLS
337f85162f0SHajimu UMEMOTO #endif
338f85162f0SHajimu UMEMOTO 
339f85162f0SHajimu UMEMOTO #if !defined(SHARED_LIBBIND) || defined(LIB)
340f85162f0SHajimu UMEMOTO /*
341f85162f0SHajimu UMEMOTO  * If libbind is a shared object (well, DLL anyway)
342f85162f0SHajimu UMEMOTO  * these externs break the linker when resolv.h is
343f85162f0SHajimu UMEMOTO  * included by a lib client (like named)
344f85162f0SHajimu UMEMOTO  * Make them go away if a client is including this
345f85162f0SHajimu UMEMOTO  *
346f85162f0SHajimu UMEMOTO  */
347f85162f0SHajimu UMEMOTO extern const struct res_sym __p_key_syms[];
348f85162f0SHajimu UMEMOTO extern const struct res_sym __p_cert_syms[];
349f85162f0SHajimu UMEMOTO extern const struct res_sym __p_class_syms[];
350f85162f0SHajimu UMEMOTO extern const struct res_sym __p_type_syms[];
351f85162f0SHajimu UMEMOTO extern const struct res_sym __p_rcode_syms[];
352f85162f0SHajimu UMEMOTO #endif /* SHARED_LIBBIND */
353f85162f0SHajimu UMEMOTO 
354f85162f0SHajimu UMEMOTO #define b64_ntop		__b64_ntop
355f85162f0SHajimu UMEMOTO #define b64_pton		__b64_pton
356f85162f0SHajimu UMEMOTO #define dn_comp			__dn_comp
357f85162f0SHajimu UMEMOTO #define dn_count_labels		__dn_count_labels
358f85162f0SHajimu UMEMOTO #define dn_expand		__dn_expand
359f85162f0SHajimu UMEMOTO #define dn_skipname		__dn_skipname
360f85162f0SHajimu UMEMOTO #define fp_resstat		__fp_resstat
361f85162f0SHajimu UMEMOTO #define loc_aton		__loc_aton
362f85162f0SHajimu UMEMOTO #define loc_ntoa		__loc_ntoa
363f85162f0SHajimu UMEMOTO #define p_cdname		__p_cdname
364f85162f0SHajimu UMEMOTO #define p_cdnname		__p_cdnname
365f85162f0SHajimu UMEMOTO #define p_class			__p_class
366f85162f0SHajimu UMEMOTO #define p_fqname		__p_fqname
367f85162f0SHajimu UMEMOTO #define p_fqnname		__p_fqnname
368f85162f0SHajimu UMEMOTO #define p_option		__p_option
369f85162f0SHajimu UMEMOTO #define p_secstodate		__p_secstodate
370f85162f0SHajimu UMEMOTO #define p_section		__p_section
371f85162f0SHajimu UMEMOTO #define p_time			__p_time
372f85162f0SHajimu UMEMOTO #define p_type			__p_type
373f85162f0SHajimu UMEMOTO #define p_rcode			__p_rcode
374f85162f0SHajimu UMEMOTO #define p_sockun		__p_sockun
375f85162f0SHajimu UMEMOTO #define putlong			__putlong
376f85162f0SHajimu UMEMOTO #define putshort		__putshort
377f85162f0SHajimu UMEMOTO #define res_dnok		__res_dnok
378f85162f0SHajimu UMEMOTO #define res_findzonecut		__res_findzonecut
379f85162f0SHajimu UMEMOTO #define res_findzonecut2	__res_findzonecut2
380f85162f0SHajimu UMEMOTO #define res_hnok		__res_hnok
381f85162f0SHajimu UMEMOTO #define res_hostalias		__res_hostalias
382f85162f0SHajimu UMEMOTO #define res_mailok		__res_mailok
383f85162f0SHajimu UMEMOTO #define res_nameinquery		__res_nameinquery
384f85162f0SHajimu UMEMOTO #define res_nclose		__res_nclose
385f85162f0SHajimu UMEMOTO #define res_ninit		__res_ninit
386f85162f0SHajimu UMEMOTO #define res_nmkquery		__res_nmkquery
387f85162f0SHajimu UMEMOTO #define res_pquery		__res_pquery
388f85162f0SHajimu UMEMOTO #define res_nquery		__res_nquery
389f85162f0SHajimu UMEMOTO #define res_nquerydomain	__res_nquerydomain
390f85162f0SHajimu UMEMOTO #define res_nsearch		__res_nsearch
391f85162f0SHajimu UMEMOTO #define res_nsend		__res_nsend
392f85162f0SHajimu UMEMOTO #define res_nsendsigned		__res_nsendsigned
393f85162f0SHajimu UMEMOTO #define res_nisourserver	__res_nisourserver
394f85162f0SHajimu UMEMOTO #define res_ownok		__res_ownok
395f85162f0SHajimu UMEMOTO #define res_queriesmatch	__res_queriesmatch
396*046c3635SPedro F. Giffuni #define res_rndinit		__res_rndinit
397f85162f0SHajimu UMEMOTO #define res_randomid		__res_randomid
398*046c3635SPedro F. Giffuni #define res_nrandomid		__res_nrandomid
399f85162f0SHajimu UMEMOTO #define sym_ntop		__sym_ntop
400f85162f0SHajimu UMEMOTO #define sym_ntos		__sym_ntos
401f85162f0SHajimu UMEMOTO #define sym_ston		__sym_ston
402f85162f0SHajimu UMEMOTO #define res_nopt		__res_nopt
4039aeb4147SHajimu UMEMOTO #define res_nopt_rdata       	__res_nopt_rdata
404f85162f0SHajimu UMEMOTO #define res_ndestroy		__res_ndestroy
405f85162f0SHajimu UMEMOTO #define	res_nametoclass		__res_nametoclass
406f85162f0SHajimu UMEMOTO #define	res_nametotype		__res_nametotype
407f85162f0SHajimu UMEMOTO #define	res_setservers		__res_setservers
408f85162f0SHajimu UMEMOTO #define	res_getservers		__res_getservers
409f85162f0SHajimu UMEMOTO #define	res_buildprotolist	__res_buildprotolist
410f85162f0SHajimu UMEMOTO #define	res_destroyprotolist	__res_destroyprotolist
411f85162f0SHajimu UMEMOTO #define	res_destroyservicelist	__res_destroyservicelist
412f85162f0SHajimu UMEMOTO #define	res_get_nibblesuffix	__res_get_nibblesuffix
413f85162f0SHajimu UMEMOTO #define	res_get_nibblesuffix2	__res_get_nibblesuffix2
414f85162f0SHajimu UMEMOTO #define	res_ourserver_p		__res_ourserver_p
415f85162f0SHajimu UMEMOTO #define	res_protocolname	__res_protocolname
416f85162f0SHajimu UMEMOTO #define	res_protocolnumber	__res_protocolnumber
417f85162f0SHajimu UMEMOTO #define	res_send_setqhook	__res_send_setqhook
418f85162f0SHajimu UMEMOTO #define	res_send_setrhook	__res_send_setrhook
419f85162f0SHajimu UMEMOTO #define	res_servicename		__res_servicename
420f85162f0SHajimu UMEMOTO #define	res_servicenumber	__res_servicenumber
421f85162f0SHajimu UMEMOTO __BEGIN_DECLS
422f85162f0SHajimu UMEMOTO int		res_hnok __P((const char *));
423f85162f0SHajimu UMEMOTO int		res_ownok __P((const char *));
424f85162f0SHajimu UMEMOTO int		res_mailok __P((const char *));
425f85162f0SHajimu UMEMOTO int		res_dnok __P((const char *));
426f85162f0SHajimu UMEMOTO int		sym_ston __P((const struct res_sym *, const char *, int *));
427f85162f0SHajimu UMEMOTO const char *	sym_ntos __P((const struct res_sym *, int, int *));
428f85162f0SHajimu UMEMOTO const char *	sym_ntop __P((const struct res_sym *, int, int *));
429f85162f0SHajimu UMEMOTO int		b64_ntop __P((u_char const *, size_t, char *, size_t));
430f85162f0SHajimu UMEMOTO int		b64_pton __P((char const *, u_char *, size_t));
431f85162f0SHajimu UMEMOTO int		loc_aton __P((const char *, u_char *));
432f85162f0SHajimu UMEMOTO const char *	loc_ntoa __P((const u_char *, char *));
433f85162f0SHajimu UMEMOTO int		dn_skipname __P((const u_char *, const u_char *));
434f85162f0SHajimu UMEMOTO void		putlong __P((u_int32_t, u_char *));
435f85162f0SHajimu UMEMOTO void		putshort __P((u_int16_t, u_char *));
436f85162f0SHajimu UMEMOTO #ifndef __ultrix__
437f85162f0SHajimu UMEMOTO u_int16_t	_getshort __P((const u_char *));
438f85162f0SHajimu UMEMOTO u_int32_t	_getlong __P((const u_char *));
439f85162f0SHajimu UMEMOTO #endif
440f85162f0SHajimu UMEMOTO const char *	p_class __P((int));
441f85162f0SHajimu UMEMOTO const char *	p_time __P((u_int32_t));
442f85162f0SHajimu UMEMOTO const char *	p_type __P((int));
443f85162f0SHajimu UMEMOTO const char *	p_rcode __P((int));
444f85162f0SHajimu UMEMOTO const char *	p_sockun __P((union res_sockaddr_union, char *, size_t));
445f85162f0SHajimu UMEMOTO const u_char *	p_cdnname __P((const u_char *, const u_char *, int, FILE *));
446f85162f0SHajimu UMEMOTO const u_char *	p_cdname __P((const u_char *, const u_char *, FILE *));
447f85162f0SHajimu UMEMOTO const u_char *	p_fqnname __P((const u_char *, const u_char *,
448f85162f0SHajimu UMEMOTO 			       int, char *, int));
449f85162f0SHajimu UMEMOTO const u_char *	p_fqname __P((const u_char *, const u_char *, FILE *));
450f85162f0SHajimu UMEMOTO const char *	p_option __P((u_long));
451f85162f0SHajimu UMEMOTO char *		p_secstodate __P((u_long));
452f85162f0SHajimu UMEMOTO int		dn_count_labels __P((const char *));
453f85162f0SHajimu UMEMOTO int		dn_comp __P((const char *, u_char *, int,
454f85162f0SHajimu UMEMOTO 			     u_char **, u_char **));
455f85162f0SHajimu UMEMOTO int		dn_expand __P((const u_char *, const u_char *, const u_char *,
456f85162f0SHajimu UMEMOTO 			       char *, int));
457*046c3635SPedro F. Giffuni void		res_rndinit __P((res_state));
458f85162f0SHajimu UMEMOTO u_int		res_randomid __P((void));
459*046c3635SPedro F. Giffuni u_int		res_nrandomid __P((res_state));
460f85162f0SHajimu UMEMOTO int		res_nameinquery __P((const char *, int, int, const u_char *,
461f85162f0SHajimu UMEMOTO 				     const u_char *));
462f85162f0SHajimu UMEMOTO int		res_queriesmatch __P((const u_char *, const u_char *,
463f85162f0SHajimu UMEMOTO 				      const u_char *, const u_char *));
464f85162f0SHajimu UMEMOTO const char *	p_section __P((int, int));
465f85162f0SHajimu UMEMOTO /* Things involving a resolver context. */
466f85162f0SHajimu UMEMOTO int		res_ninit __P((res_state));
467f85162f0SHajimu UMEMOTO int		res_nisourserver __P((const res_state,
468f85162f0SHajimu UMEMOTO 				      const struct sockaddr_in *));
469f85162f0SHajimu UMEMOTO void		fp_resstat __P((const res_state, FILE *));
470f85162f0SHajimu UMEMOTO void		res_pquery __P((const res_state, const u_char *, int, FILE *));
471f85162f0SHajimu UMEMOTO const char *	res_hostalias __P((const res_state, const char *,
472f85162f0SHajimu UMEMOTO 				   char *, size_t));
473f85162f0SHajimu UMEMOTO int		res_nquery __P((res_state, const char *, int, int,
474f85162f0SHajimu UMEMOTO 				u_char *, int));
475f85162f0SHajimu UMEMOTO int		res_nsearch __P((res_state, const char *, int, int, u_char *,
476f85162f0SHajimu UMEMOTO 				 int));
477f85162f0SHajimu UMEMOTO int		res_nquerydomain __P((res_state, const char *, const char *,
478f85162f0SHajimu UMEMOTO 				      int, int, u_char *, int));
479f85162f0SHajimu UMEMOTO int		res_nmkquery __P((res_state, int, const char *, int, int,
480f85162f0SHajimu UMEMOTO 				  const u_char *, int, const u_char *,
481f85162f0SHajimu UMEMOTO 				  u_char *, int));
482f85162f0SHajimu UMEMOTO int		res_nsend __P((res_state, const u_char *, int, u_char *, int));
483f85162f0SHajimu UMEMOTO int		res_nsendsigned __P((res_state, const u_char *, int,
484f85162f0SHajimu UMEMOTO 				     ns_tsig_key *, u_char *, int));
485f85162f0SHajimu UMEMOTO int		res_findzonecut __P((res_state, const char *, ns_class, int,
486f85162f0SHajimu UMEMOTO 				     char *, size_t, struct in_addr *, int));
487f85162f0SHajimu UMEMOTO int		res_findzonecut2 __P((res_state, const char *, ns_class, int,
488f85162f0SHajimu UMEMOTO 				      char *, size_t,
489f85162f0SHajimu UMEMOTO 				      union res_sockaddr_union *, int));
490f85162f0SHajimu UMEMOTO void		res_nclose __P((res_state));
491f85162f0SHajimu UMEMOTO int		res_nopt __P((res_state, int, u_char *, int, int));
4929aeb4147SHajimu UMEMOTO int		res_nopt_rdata __P((res_state, int, u_char *, int, u_char *,
4939aeb4147SHajimu UMEMOTO 				    u_short, u_short, u_char *));
494f85162f0SHajimu UMEMOTO void		res_send_setqhook __P((res_send_qhook));
495f85162f0SHajimu UMEMOTO void		res_send_setrhook __P((res_send_rhook));
496f85162f0SHajimu UMEMOTO int		__res_vinit __P((res_state, int));
497f85162f0SHajimu UMEMOTO void		res_destroyservicelist __P((void));
498f85162f0SHajimu UMEMOTO const char *	res_servicename __P((u_int16_t, const char *));
499f85162f0SHajimu UMEMOTO const char *	res_protocolname __P((int));
500f85162f0SHajimu UMEMOTO void		res_destroyprotolist __P((void));
501f85162f0SHajimu UMEMOTO void		res_buildprotolist __P((void));
502f85162f0SHajimu UMEMOTO const char *	res_get_nibblesuffix __P((res_state));
503f85162f0SHajimu UMEMOTO const char *	res_get_nibblesuffix2 __P((res_state));
504f85162f0SHajimu UMEMOTO void		res_ndestroy __P((res_state));
505f85162f0SHajimu UMEMOTO u_int16_t	res_nametoclass __P((const char *, int *));
506f85162f0SHajimu UMEMOTO u_int16_t	res_nametotype __P((const char *, int *));
507f85162f0SHajimu UMEMOTO void		res_setservers __P((res_state,
508f85162f0SHajimu UMEMOTO 				    const union res_sockaddr_union *, int));
509f85162f0SHajimu UMEMOTO int		res_getservers __P((res_state,
510f85162f0SHajimu UMEMOTO 				    union res_sockaddr_union *, int));
511f85162f0SHajimu UMEMOTO __END_DECLS
512f85162f0SHajimu UMEMOTO 
513f85162f0SHajimu UMEMOTO #endif /* !_RESOLV_H_ */
514861249f5SHajimu UMEMOTO /*! \file */
515