159deaec5SRodney W. Grimes /*- 259deaec5SRodney W. Grimes * Copyright (c) 1983, 1987, 1989, 1993 359deaec5SRodney W. Grimes * The Regents of the University of California. All rights reserved. 459deaec5SRodney W. Grimes * 559deaec5SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 659deaec5SRodney W. Grimes * modification, are permitted provided that the following conditions 759deaec5SRodney W. Grimes * are met: 859deaec5SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 959deaec5SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 1059deaec5SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 1159deaec5SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 1259deaec5SRodney W. Grimes * documentation and/or other materials provided with the distribution. 1359deaec5SRodney W. Grimes * 3. All advertising materials mentioning features or use of this software 1459deaec5SRodney W. Grimes * must display the following acknowledgement: 1559deaec5SRodney W. Grimes * This product includes software developed by the University of 1659deaec5SRodney W. Grimes * California, Berkeley and its contributors. 1759deaec5SRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 1859deaec5SRodney W. Grimes * may be used to endorse or promote products derived from this software 1959deaec5SRodney W. Grimes * without specific prior written permission. 2059deaec5SRodney W. Grimes * 2159deaec5SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2259deaec5SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2359deaec5SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2459deaec5SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2559deaec5SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2659deaec5SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2759deaec5SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2859deaec5SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2959deaec5SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3059deaec5SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3159deaec5SRodney W. Grimes * SUCH DAMAGE. 3259deaec5SRodney W. Grimes * 3359deaec5SRodney W. Grimes * @(#)resolv.h 8.1 (Berkeley) 6/2/93 3459deaec5SRodney W. Grimes * $Id: resolv.h,v 4.9.1.2 1993/05/17 09:59:01 vixie Exp $ 3559deaec5SRodney W. Grimes * - 3659deaec5SRodney W. Grimes * Portions Copyright (c) 1993 by Digital Equipment Corporation. 3759deaec5SRodney W. Grimes * 3859deaec5SRodney W. Grimes * Permission to use, copy, modify, and distribute this software for any 3959deaec5SRodney W. Grimes * purpose with or without fee is hereby granted, provided that the above 4059deaec5SRodney W. Grimes * copyright notice and this permission notice appear in all copies, and that 4159deaec5SRodney W. Grimes * the name of Digital Equipment Corporation not be used in advertising or 4259deaec5SRodney W. Grimes * publicity pertaining to distribution of the document or software without 4359deaec5SRodney W. Grimes * specific, written prior permission. 4459deaec5SRodney W. Grimes * 4559deaec5SRodney W. Grimes * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 4659deaec5SRodney W. Grimes * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 4759deaec5SRodney W. Grimes * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 4859deaec5SRodney W. Grimes * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 4959deaec5SRodney W. Grimes * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 5059deaec5SRodney W. Grimes * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 5159deaec5SRodney W. Grimes * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 5259deaec5SRodney W. Grimes * SOFTWARE. 5359deaec5SRodney W. Grimes * - 5459deaec5SRodney W. Grimes * --Copyright-- 5559deaec5SRodney W. Grimes */ 5659deaec5SRodney W. Grimes 5759deaec5SRodney W. Grimes #ifndef _RESOLV_H_ 5859deaec5SRodney W. Grimes #define _RESOLV_H_ 5959deaec5SRodney W. Grimes 6059deaec5SRodney W. Grimes #include <sys/types.h> 6159deaec5SRodney W. Grimes /* 6259deaec5SRodney W. Grimes * Resolver configuration file. 6359deaec5SRodney W. Grimes * Normally not present, but may contain the address of the 6459deaec5SRodney W. Grimes * inital name server(s) to query and the domain search list. 6559deaec5SRodney W. Grimes */ 6659deaec5SRodney W. Grimes 6759deaec5SRodney W. Grimes #ifndef _PATH_RESCONF 6859deaec5SRodney W. Grimes #define _PATH_RESCONF "/etc/resolv.conf" 6959deaec5SRodney W. Grimes #endif 7059deaec5SRodney W. Grimes 7159deaec5SRodney W. Grimes /* 7259deaec5SRodney W. Grimes * Global defines and variables for resolver stub. 7359deaec5SRodney W. Grimes */ 7459deaec5SRodney W. Grimes #define MAXNS 3 /* max # name servers we'll track */ 7559deaec5SRodney W. Grimes #define MAXDFLSRCH 3 /* # default domain levels to try */ 7659deaec5SRodney W. Grimes #define MAXDNSRCH 6 /* max # domains in search path */ 7759deaec5SRodney W. Grimes #define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */ 7859deaec5SRodney W. Grimes 7959deaec5SRodney W. Grimes #define RES_TIMEOUT 5 /* min. seconds between retries */ 8059deaec5SRodney W. Grimes 8159deaec5SRodney W. Grimes struct __res_state { 8259deaec5SRodney W. Grimes int retrans; /* retransmition time interval */ 8359deaec5SRodney W. Grimes int retry; /* number of times to retransmit */ 8459deaec5SRodney W. Grimes long options; /* option flags - see below. */ 8559deaec5SRodney W. Grimes int nscount; /* number of name servers */ 8659deaec5SRodney W. Grimes struct sockaddr_in nsaddr_list[MAXNS]; /* address of name server */ 8759deaec5SRodney W. Grimes #define nsaddr nsaddr_list[0] /* for backward compatibility */ 8859deaec5SRodney W. Grimes u_short id; /* current packet id */ 8959deaec5SRodney W. Grimes char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */ 9059deaec5SRodney W. Grimes char defdname[MAXDNAME]; /* default domain */ 9159deaec5SRodney W. Grimes long pfcode; /* RES_PRF_ flags - see below. */ 9259deaec5SRodney W. Grimes }; 9359deaec5SRodney W. Grimes 9459deaec5SRodney W. Grimes /* 9559deaec5SRodney W. Grimes * Resolver options (keep these in synch with res_debug.c, please) 9659deaec5SRodney W. Grimes */ 9759deaec5SRodney W. Grimes #define RES_INIT 0x0001 /* address initialized */ 9859deaec5SRodney W. Grimes #define RES_DEBUG 0x0002 /* print debug messages */ 9959deaec5SRodney W. Grimes #define RES_AAONLY 0x0004 /* authoritative answers only */ 10059deaec5SRodney W. Grimes #define RES_USEVC 0x0008 /* use virtual circuit */ 10159deaec5SRodney W. Grimes #define RES_PRIMARY 0x0010 /* query primary server only */ 10259deaec5SRodney W. Grimes #define RES_IGNTC 0x0020 /* ignore trucation errors */ 10359deaec5SRodney W. Grimes #define RES_RECURSE 0x0040 /* recursion desired */ 10459deaec5SRodney W. Grimes #define RES_DEFNAMES 0x0080 /* use default domain name */ 10559deaec5SRodney W. Grimes #define RES_STAYOPEN 0x0100 /* Keep TCP socket open */ 10659deaec5SRodney W. Grimes #define RES_DNSRCH 0x0200 /* search up local domain tree */ 10759deaec5SRodney W. Grimes 10859deaec5SRodney W. Grimes #define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH) 10959deaec5SRodney W. Grimes 11059deaec5SRodney W. Grimes /* 11159deaec5SRodney W. Grimes * Resolver "pfcode" values. Used by dig. 11259deaec5SRodney W. Grimes */ 11359deaec5SRodney W. Grimes #define RES_PRF_STATS 0x0001 11459deaec5SRodney W. Grimes /* 0x0002 */ 11559deaec5SRodney W. Grimes #define RES_PRF_CLASS 0x0004 11659deaec5SRodney W. Grimes #define RES_PRF_CMD 0x0008 11759deaec5SRodney W. Grimes #define RES_PRF_QUES 0x0010 11859deaec5SRodney W. Grimes #define RES_PRF_ANS 0x0020 11959deaec5SRodney W. Grimes #define RES_PRF_AUTH 0x0040 12059deaec5SRodney W. Grimes #define RES_PRF_ADD 0x0080 12159deaec5SRodney W. Grimes #define RES_PRF_HEAD1 0x0100 12259deaec5SRodney W. Grimes #define RES_PRF_HEAD2 0x0200 12359deaec5SRodney W. Grimes #define RES_PRF_TTLID 0x0400 12459deaec5SRodney W. Grimes #define RES_PRF_HEADX 0x0800 12559deaec5SRodney W. Grimes #define RES_PRF_QUERY 0x1000 12659deaec5SRodney W. Grimes #define RES_PRF_REPLY 0x2000 12759deaec5SRodney W. Grimes #define RES_PRF_INIT 0x4000 12859deaec5SRodney W. Grimes /* 0x8000 */ 12959deaec5SRodney W. Grimes 13059deaec5SRodney W. Grimes #include <sys/cdefs.h> 13159deaec5SRodney W. Grimes #include <stdio.h> 13259deaec5SRodney W. Grimes 13359deaec5SRodney W. Grimes extern struct __res_state _res; 13459deaec5SRodney W. Grimes 13559deaec5SRodney W. Grimes /* Private routines shared between libc/net, named, nslookup and others. */ 13659deaec5SRodney W. Grimes #define dn_skipname __dn_skipname 13759deaec5SRodney W. Grimes #define fp_query __fp_query 13859deaec5SRodney W. Grimes #define hostalias __hostalias 13959deaec5SRodney W. Grimes #define putlong __putlong 14059deaec5SRodney W. Grimes #define putshort __putshort 14159deaec5SRodney W. Grimes #define p_class __p_class 14259deaec5SRodney W. Grimes #define p_time __p_time 14359deaec5SRodney W. Grimes #define p_type __p_type 14459deaec5SRodney W. Grimes __BEGIN_DECLS 14559deaec5SRodney W. Grimes int __dn_skipname __P((const u_char *, const u_char *)); 14659deaec5SRodney W. Grimes void __fp_resstat __P((struct __res_state *, FILE *)); 14759deaec5SRodney W. Grimes void __fp_query __P((char *, FILE *)); 14859deaec5SRodney W. Grimes char *__hostalias __P((const char *)); 14959deaec5SRodney W. Grimes void __putlong __P((u_int32_t, u_char *)); 15059deaec5SRodney W. Grimes void __putshort __P((u_short, u_char *)); 15159deaec5SRodney W. Grimes char *__p_class __P((int)); 15259deaec5SRodney W. Grimes char *__p_time __P((u_int32_t)); 15359deaec5SRodney W. Grimes char *__p_type __P((int)); 15459deaec5SRodney W. Grimes 15559deaec5SRodney W. Grimes int dn_comp __P((const u_char *, u_char *, int, u_char **, u_char **)); 15659deaec5SRodney W. Grimes int dn_expand __P((const u_char *, const u_char *, const u_char *, 15759deaec5SRodney W. Grimes u_char *, int)); 15859deaec5SRodney W. Grimes int res_init __P((void)); 15959deaec5SRodney W. Grimes int res_mkquery __P((int, const char *, int, int, const char *, int, 16059deaec5SRodney W. Grimes const char *, char *, int)); 16159deaec5SRodney W. Grimes int res_send __P((const char *, int, char *, int)); 16259deaec5SRodney W. Grimes __END_DECLS 16359deaec5SRodney W. Grimes 16459deaec5SRodney W. Grimes #endif /* !_RESOLV_H_ */ 165