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- /*
- * Copyright (c) 1983, 1987, 1989 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.
- *
- * @(#)resolv.h 5.15 (Berkeley) 4/3/91
- */
-
- #ifndef _RESOLV_H_
- #define _RESOLV_H_
-
- /*
- * 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 */
-
- struct state {
- int retrans; /* retransmition time interval */
- int retry; /* number of times to retransmit */
- 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 defdname[MAXDNAME]; /* default domain */
- char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
- };
-
- /*
- * Resolver options
- */
- #define RES_INIT 0x0001 /* address initialized */
- #define RES_DEBUG 0x0002 /* print debug messages */
- #define RES_AAONLY 0x0004 /* authoritative answers only */
- #define RES_USEVC 0x0008 /* use virtual circuit */
- #define RES_PRIMARY 0x0010 /* query primary server only */
- #define RES_IGNTC 0x0020 /* ignore trucation errors */
- #define RES_RECURSE 0x0040 /* recursion desired */
- #define RES_DEFNAMES 0x0080 /* use default domain name */
- #define RES_STAYOPEN 0x0100 /* Keep TCP socket open */
- #define RES_DNSRCH 0x0200 /* search up local domain tree */
-
- #define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
-
- extern struct state _res;
-
- #include <sys/cdefs.h>
- #include <stdio.h>
-
- /* Private routines shared between libc/net, named, nslookup and others. */
- #define dn_skipname __dn_skipname
- #define fp_query __fp_query
- #define hostalias __hostalias
- #define putlong __putlong
- #define putshort __putshort
- #define p_class __p_class
- #define p_time __p_time
- #define p_type __p_type
- __BEGIN_DECLS
- int __dn_skipname __P((const u_char *, const u_char *));
- void __fp_query __P((char *, FILE *));
- char *__hostalias __P((const char *));
- void __putlong __P((u_long, u_char *));
- void __putshort __P((u_short, u_char *));
- char *__p_class __P((int));
- char *__p_time __P((u_long));
- char *__p_type __P((int));
-
- int dn_comp __P((const u_char *, u_char *, int, u_char **, u_char **));
- int dn_expand __P((const u_char *, const u_char *, const u_char *,
- u_char *, int));
- int res_init __P((void));
- int res_mkquery __P((int, const char *, int, int, const char *, int,
- const struct rrec *, char *, int));
- int res_send __P((const char *, int, char *, int));
- __END_DECLS
-
- #endif /* !_RESOLV_H_ */
-