--- /dev/null
+/*!\file resolv.h
+ * Resolver API.
+ */
+
+/*-
+ * Copyright (c) 1983, 1987, 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ *
+ * @(#)resolv.h 8.1 (Berkeley) 6/2/93
+ * From Id: resolv.h,v 4.9.1.2 1993/05/17 09:59:01 vixie Exp
+ * $Id: resolv.h,v 1.7 1996/08/29 20:00:58 peter Exp $
+ */
+
+#ifndef _RESOLV_H_
+#define _RESOLV_H_
+
+#include <stdio.h>
+
+#ifndef __SYS_W32API_H
+#include <sys/w32api.h>
+#endif
+
+#ifndef __SYS_PARAM_H
+#include <sys/param.h>
+#endif
+
+#ifndef __SYS_WTYPES_H
+#include <sys/wtypes.h>
+#endif
+
+#ifndef __SYS_CDEFS_H
+#include <sys/cdefs.h>
+#endif
+
+
+/*
+ * revision information. this is the release date in YYYYMMDD format.
+ * it can change every day so the right thing to do with it is use it
+ * in preprocessor commands such as "#if (__RES > 19931104)". do not
+ * compare for equality; rather, use it to determine whether your resolver
+ * is new enough to contain a certain feature.
+ */
+
+#define __RES 19960229
+
+/*
+ * Resolver configuration file.
+ * Normally not present, but may contain the address of the
+ * inital name server(s) to query and the domain search list.
+ */
+
+#ifndef _PATH_RESCONF
+#define _PATH_RESCONF "/etc/resolv.conf"
+#endif
+
+/*
+ * Global defines and variables for resolver stub.
+ */
+#define MAXNS 3 /* max # name servers we'll track */
+#define MAXDFLSRCH 3 /* # default domain levels to try */
+#define MAXDNSRCH 6 /* max # domains in search path */
+#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
+
+#define RES_TIMEOUT 5 /* min. seconds between retries */
+#define MAXRESOLVSORT 10 /* number of net to sort on */
+#define RES_MAXNDOTS 15 /* should reflect bit field size */
+
+struct __res_state {
+ int retrans; /* retransmition time interval */
+ int retry; /* number of times to retransmit */
+ u_long options; /* option flags - see below. */
+ int nscount; /* number of name servers */
+ struct sockaddr_in
+ nsaddr_list[MAXNS]; /* address of name server */
+#define nsaddr nsaddr_list[0] /* for backward compatibility */
+ u_short id; /* current packet id */
+ char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
+ char defdname[MAXDNAME]; /* default domain */
+ u_long pfcode; /* RES_PRF_ flags - see below. */
+ unsigned ndots:4; /* threshold for initial abs. query */
+ unsigned nsort:4; /* number of elements in sort_list[] */
+ char unused[3];
+ struct {
+ struct in_addr addr;
+ u_long mask;
+ } sort_list[MAXRESOLVSORT];
+ char pad[72]; /* On an i386 this means 512b total. */
+};
+
+/*
+ * Resolver options (keep these in synch with res_debug.c, please)
+ */
+#define RES_INIT 0x00000001 /* address initialized */
+#define RES_DEBUG 0x00000002 /* print debug messages */
+#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/
+#define RES_USEVC 0x00000008 /* use virtual circuit */
+#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */
+#define RES_IGNTC 0x00000020 /* ignore truncation errors */
+#define RES_RECURSE 0x00000040 /* recursion desired */
+#define RES_DEFNAMES 0x00000080 /* use default domain name */
+#define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */
+#define RES_DNSRCH 0x00000200 /* search up local domain tree */
+#define RES_INSECURE1 0x00000400 /* type 1 security disabled */
+#define RES_INSECURE2 0x00000800 /* type 2 security disabled */
+#define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */
+#define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */
+
+#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
+
+/*
+ * Resolver "pfcode" values. Used by dig.
+ */
+#define RES_PRF_STATS 0x00000001
+/* 0x00000002 */
+#define RES_PRF_CLASS 0x00000004
+#define RES_PRF_CMD 0x00000008
+#define RES_PRF_QUES 0x00000010
+#define RES_PRF_ANS 0x00000020
+#define RES_PRF_AUTH 0x00000040
+#define RES_PRF_ADD 0x00000080
+#define RES_PRF_HEAD1 0x00000100
+#define RES_PRF_HEAD2 0x00000200
+#define RES_PRF_TTLID 0x00000400
+#define RES_PRF_HEADX 0x00000800
+#define RES_PRF_QUERY 0x00001000
+#define RES_PRF_REPLY 0x00002000
+#define RES_PRF_INIT 0x00004000
+/* 0x00008000 */
+
+/* hooks are still experimental as of 4.9.2 */
+typedef enum {
+ res_goahead,
+ res_nextns,
+ res_modified,
+ res_done,
+ res_error
+ } res_sendhookact;
+
+typedef res_sendhookact (*res_send_qhook)(struct sockaddr_in * const *ns,
+ const u_char **query,
+ int *querylen,
+ u_char *ans,
+ int anssiz,
+ int *resplen);
+
+typedef res_sendhookact (*res_send_rhook)(const struct sockaddr_in *ns,
+ const u_char *query,
+ int querylen,
+ u_char *ans,
+ int anssiz,
+ int *resplen);
+
+W32_DATA struct __res_state _res;
+
+W32_DATA int h_errno;
+
+/* Private routines shared between libc/net, named, nslookup and others. */
+#define res_hnok __res_hnok
+#define res_ownok __res_ownok
+#define res_mailok __res_mailok
+#define res_dnok __res_dnok
+#define loc_ntoa __loc_ntoa
+#define loc_aton __loc_aton
+#define dn_skipname __dn_skipname
+#define fp_query __fp_query
+#define fp_nquery __fp_nquery
+#define hostalias __hostalias
+#define putlong __putlong
+#define putshort __putshort
+#define p_class __p_class
+#define p_time __p_time
+#define p_type __p_type
+#define p_cdnname __p_cdnname
+#define p_cdname __p_cdname
+#define p_fqname __p_fqname
+#define p_rr __p_rr
+#define p_option __p_option
+#define res_randomid __res_randomid
+#define res_isourserver __res_isourserver
+#define res_nameinquery __res_nameinquery
+#define res_queriesmatch __res_queriesmatch
+
+__BEGIN_DECLS
+
+W32_FUNC int __res_hnok (const char *);
+W32_FUNC int __res_ownok (const char *);
+W32_FUNC int __res_mailok (const char *);
+W32_FUNC int __res_dnok (const char *);
+W32_FUNC int __loc_aton (const char *ascii, u_char *binary);
+W32_FUNC char * __loc_ntoa (const u_char *binary, char *ascii);
+W32_FUNC int __dn_skipname(const u_char *, const u_char *);
+W32_FUNC void __fp_resstat (struct __res_state *, FILE *);
+W32_FUNC void __fp_query (const u_char *, FILE *);
+W32_FUNC void __fp_nquery (const u_char *, int, FILE *);
+W32_FUNC char *__hostalias (const char *);
+W32_FUNC void __putlong (u_long, u_char *);
+W32_FUNC void __putshort (u_short, u_char *);
+W32_FUNC char *__p_time (u_long);
+W32_FUNC void __p_query (const u_char *);
+
+W32_FUNC const u_char *__p_cdnname (const u_char *, const u_char *, int, FILE *);
+W32_FUNC const u_char *__p_cdname (const u_char *, const u_char *, FILE *);
+W32_FUNC const u_char *__p_fqname (const u_char *, const u_char *, FILE *);
+W32_FUNC const u_char *__p_rr (const u_char *, const u_char *, FILE *);
+W32_FUNC const char *__p_type (int);
+W32_FUNC const char *__p_class (int);
+W32_FUNC const char *__p_option (u_long option);
+
+W32_FUNC int dn_comp (const char *, u_char *, int, u_char **, u_char **);
+W32_FUNC int dn_expand (const u_char *, const u_char *, const u_char *, char *, int);
+
+W32_FUNC int res_init (void);
+W32_FUNC u_short res_randomid (void);
+W32_FUNC int res_query (const char *, int, int, u_char *, int);
+W32_FUNC int res_search (const char *, int, int, u_char *, int);
+W32_FUNC int res_querydomain (const char *, const char *, int, int, u_char *, int);
+W32_FUNC int res_mkquery (int, const char *, int, int, const u_char *, int, const u_char *, u_char *, int);
+W32_FUNC int res_send (const u_char *, int, u_char *, int);
+W32_FUNC int res_isourserver (const struct sockaddr_in *);
+W32_FUNC int res_nameinquery (const char *, int, int, const u_char *, const u_char *);
+W32_FUNC int res_queriesmatch(const u_char *, const u_char *, const u_char *, const u_char *);
+
+W32_FUNC void res_send_setqhook (res_send_qhook hook);
+W32_FUNC void res_send_setrhook (res_send_rhook hook);
+
+__END_DECLS
+
+#endif /* !_RESOLV_H_ */
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