147 lines
3.7 KiB
C
147 lines
3.7 KiB
C
/*
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* Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* $Id: resolve.h,v 1.1.1.2 2000/08/02 19:59:54 assar Exp $ */
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#ifndef __RESOLVE_H__
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#define __RESOLVE_H__
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/* We use these, but they are not always present in <arpa/nameser.h> */
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#ifndef T_TXT
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#define T_TXT 16
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#endif
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#ifndef T_AFSDB
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#define T_AFSDB 18
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#endif
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#ifndef T_SIG
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#define T_SIG 24
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#endif
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#ifndef T_KEY
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#define T_KEY 25
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#endif
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#ifndef T_SRV
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#define T_SRV 33
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#endif
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#ifndef T_NAPTR
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#define T_NAPTR 35
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#endif
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#ifndef T_CERT
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#define T_CERT 37
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#endif
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struct dns_query{
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char *domain;
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unsigned type;
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unsigned class;
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};
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struct mx_record{
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unsigned preference;
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char domain[1];
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};
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struct srv_record{
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unsigned priority;
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unsigned weight;
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unsigned port;
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char target[1];
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};
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struct key_record {
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unsigned flags;
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unsigned protocol;
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unsigned algorithm;
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size_t key_len;
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u_char key_data[1];
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};
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struct sig_record {
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unsigned type;
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unsigned algorithm;
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unsigned labels;
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unsigned orig_ttl;
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unsigned sig_expiration;
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unsigned sig_inception;
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unsigned key_tag;
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char *signer;
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unsigned sig_len;
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u_char sig_data[1]; /* also includes signer */
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};
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struct cert_record {
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unsigned type;
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unsigned tag;
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unsigned algorithm;
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size_t cert_len;
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u_char cert_data[1];
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};
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struct resource_record{
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char *domain;
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unsigned type;
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unsigned class;
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unsigned ttl;
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unsigned size;
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union {
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void *data;
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struct mx_record *mx;
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struct mx_record *afsdb; /* mx and afsdb are identical */
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struct srv_record *srv;
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struct in_addr *a;
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char *txt;
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struct key_record *key;
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struct cert_record *cert;
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struct sig_record *sig;
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}u;
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struct resource_record *next;
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};
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#ifndef T_A /* XXX if <arpa/nameser.h> isn't included */
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typedef int HEADER; /* will never be used */
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#endif
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struct dns_reply{
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HEADER h;
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struct dns_query q;
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struct resource_record *head;
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};
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struct dns_reply* dns_lookup(const char *, const char *);
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void dns_free_data(struct dns_reply *);
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int dns_string_to_type(const char *name);
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const char *dns_type_to_string(int type);
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#endif /* __RESOLVE_H__ */
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