contrib/sendmail-8.14/sendmail/sm_resolve.h

   1 /*
   2  * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  *
   5  * By using this file, you agree to the terms and conditions set
   6  * forth in the LICENSE file which can be found at the top level of
   7  * the sendmail distribution.
   8  *
   9  */
  10
  11 /*
  12  * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan
  13  * (Royal Institute of Technology, Stockholm, Sweden).
  14  * All rights reserved.
  15  *
  16  * Redistribution and use in source and binary forms, with or without
  17  * modification, are permitted provided that the following conditions
  18  * are met:
  19  *
  20  * 1. Redistributions of source code must retain the above copyright
  21  *    notice, this list of conditions and the following disclaimer.
  22  *
  23  * 2. Redistributions in binary form must reproduce the above copyright
  24  *    notice, this list of conditions and the following disclaimer in the
  25  *    documentation and/or other materials provided with the distribution.
  26  *
  27  * 3. Neither the name of the Institute nor the names of its contributors
  28  *    may be used to endorse or promote products derived from this software
  29  *    without specific prior written permission.
  30  *
  31  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  32  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  33  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  34  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  35  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  39  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  40  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  41  * SUCH DAMAGE.
  42  */
  43
  44 /* $Id: sm_resolve.h,v 8.8 2001/09/01 00:06:02 gshapiro Exp $ */
  45
  46 #if DNSMAP
  47 # ifndef __ROKEN_RESOLVE_H__
  48 #  define __ROKEN_RESOLVE_H__
  49
  50 /* We use these, but they are not always present in <arpa/nameser.h> */
  51
  52 #  ifndef T_TXT
  53 #   define T_TXT                16
  54 #  endif /* ! T_TXT */
  55 #  ifndef T_AFSDB
  56 #   define T_AFSDB              18
  57 #  endif /* ! T_AFSDB */
  58 #  ifndef T_SRV
  59 #   define T_SRV                33
  60 #  endif /* ! T_SRV */
  61 #  ifndef T_NAPTR
  62 #   define T_NAPTR              35
  63 #  endif /* ! T_NAPTR */
  64
  65 typedef struct
  66 {
  67         char            *dns_q_domain;
  68         unsigned int    dns_q_type;
  69         unsigned int    dns_q_class;
  70 } DNS_QUERY_T;
  71
  72 typedef struct
  73 {
  74         unsigned int    mx_r_preference;
  75         char            mx_r_domain[1];
  76 } MX_RECORD_T;
  77
  78 typedef struct
  79 {
  80         unsigned int    srv_r_priority;
  81         unsigned int    srv_r_weight;
  82         unsigned int    srv_r_port;
  83         char            srv_r_target[1];
  84 } SRV_RECORDT_T;
  85
  86
  87 typedef struct resource_record RESOURCE_RECORD_T;
  88
  89 struct resource_record
  90 {
  91         char                    *rr_domain;
  92         unsigned int            rr_type;
  93         unsigned int            rr_class;
  94         unsigned int            rr_ttl;
  95         unsigned int            rr_size;
  96         union
  97         {
  98                 void            *rr_data;
  99                 MX_RECORD_T     *rr_mx;
 100                 MX_RECORD_T     *rr_afsdb; /* mx and afsdb are identical */
 101                 SRV_RECORDT_T   *rr_srv;
 102 #  if NETINET
 103                 struct in_addr  *rr_a;
 104 #  endif /* NETINET */
 105 #  if NETINET6
 106                 struct in6_addr *rr_aaaa;
 107 #  endif /* NETINET6 */
 108                 char            *rr_txt;
 109         } rr_u;
 110         RESOURCE_RECORD_T *rr_next;
 111 };
 112
 113 #  if !defined(T_A) && !defined(T_AAAA)
 114 /* XXX if <arpa/nameser.h> isn't included */
 115 typedef int HEADER; /* will never be used */
 116 #  endif /* !defined(T_A) && !defined(T_AAAA)  */
 117
 118 typedef struct
 119 {
 120         HEADER                  dns_r_h;
 121         DNS_QUERY_T             dns_r_q;
 122         RESOURCE_RECORD_T       *dns_r_head;
 123 } DNS_REPLY_T;
 124
 125
 126 extern void             dns_free_data __P((DNS_REPLY_T *));
 127 extern int              dns_string_to_type __P((const char *));
 128 extern const char       *dns_type_to_string __P((int));
 129 extern DNS_REPLY_T      *dns_lookup_int __P((const char *,
 130                                 int,
 131                                 int,
 132                                 time_t,
 133                                 int));
 134 #  if 0
 135 extern DNS_REPLY_T      *dns_lookup __P((const char *domain,
 136                                 const char *type_name,
 137                                 time_t retrans,
 138                                 int retry));
 139 #  endif /* 0 */
 140
 141 # endif /* ! __ROKEN_RESOLVE_H__ */
 142 #endif /* DNSMAP */