252 lines
7.3 KiB
C
252 lines
7.3 KiB
C
/*
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* Copyright (c) 1995 - 2002 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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/* $Id$ */
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#ifndef __RESOLVE_H__
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#define __RESOLVE_H__
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#ifndef ROKEN_LIB_FUNCTION
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#ifdef _WIN32
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#define ROKEN_LIB_FUNCTION
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#define ROKEN_LIB_CALL __cdecl
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#else
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#define ROKEN_LIB_FUNCTION
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#define ROKEN_LIB_CALL
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#endif
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#endif
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enum {
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rk_ns_c_in = 1
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};
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enum {
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rk_ns_t_invalid = 0, /* Cookie. */
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rk_ns_t_a = 1, /* Host address. */
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rk_ns_t_ns = 2, /* Authoritative server. */
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rk_ns_t_md = 3, /* Mail destination. */
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rk_ns_t_mf = 4, /* Mail forwarder. */
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rk_ns_t_cname = 5, /* Canonical name. */
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rk_ns_t_soa = 6, /* Start of authority zone. */
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rk_ns_t_mb = 7, /* Mailbox domain name. */
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rk_ns_t_mg = 8, /* Mail group member. */
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rk_ns_t_mr = 9, /* Mail rename name. */
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rk_ns_t_null = 10, /* Null resource record. */
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rk_ns_t_wks = 11, /* Well known service. */
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rk_ns_t_ptr = 12, /* Domain name pointer. */
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rk_ns_t_hinfo = 13, /* Host information. */
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rk_ns_t_minfo = 14, /* Mailbox information. */
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rk_ns_t_mx = 15, /* Mail routing information. */
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rk_ns_t_txt = 16, /* Text strings. */
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rk_ns_t_rp = 17, /* Responsible person. */
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rk_ns_t_afsdb = 18, /* AFS cell database. */
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rk_ns_t_x25 = 19, /* X_25 calling address. */
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rk_ns_t_isdn = 20, /* ISDN calling address. */
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rk_ns_t_rt = 21, /* Router. */
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rk_ns_t_nsap = 22, /* NSAP address. */
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rk_ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
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rk_ns_t_sig = 24, /* Security signature. */
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rk_ns_t_key = 25, /* Security key. */
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rk_ns_t_px = 26, /* X.400 mail mapping. */
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rk_ns_t_gpos = 27, /* Geographical position (withdrawn). */
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rk_ns_t_aaaa = 28, /* Ip6 Address. */
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rk_ns_t_loc = 29, /* Location Information. */
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rk_ns_t_nxt = 30, /* Next domain (security). */
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rk_ns_t_eid = 31, /* Endpoint identifier. */
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rk_ns_t_nimloc = 32, /* Nimrod Locator. */
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rk_ns_t_srv = 33, /* Server Selection. */
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rk_ns_t_atma = 34, /* ATM Address */
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rk_ns_t_naptr = 35, /* Naming Authority PoinTeR */
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rk_ns_t_kx = 36, /* Key Exchange */
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rk_ns_t_cert = 37, /* Certification record */
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rk_ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
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rk_ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
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rk_ns_t_sink = 40, /* Kitchen sink (experimentatl) */
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rk_ns_t_opt = 41, /* EDNS0 option (meta-RR) */
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rk_ns_t_apl = 42, /* Address prefix list (RFC 3123) */
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rk_ns_t_ds = 43, /* Delegation Signer (RFC 3658) */
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rk_ns_t_sshfp = 44, /* SSH fingerprint */
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rk_ns_t_tkey = 249, /* Transaction key */
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rk_ns_t_tsig = 250, /* Transaction signature. */
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rk_ns_t_ixfr = 251, /* Incremental zone transfer. */
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rk_ns_t_axfr = 252, /* Transfer zone of authority. */
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rk_ns_t_mailb = 253, /* Transfer mailbox records. */
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rk_ns_t_maila = 254, /* Transfer mail agent records. */
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rk_ns_t_any = 255, /* Wildcard match. */
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rk_ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
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rk_ns_t_max = 65536
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};
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#ifndef MAXDNAME
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#define MAXDNAME 1025
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#endif
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#define mx_record rk_mx_record
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#define srv_record rk_srv_record
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#define key_record rk_key_record
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#define sig_record rk_sig_record
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#define cert_record rk_cert_record
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#define sshfp_record rk_sshfp_record
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struct rk_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 rk_mx_record{
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unsigned preference;
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char domain[1];
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};
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struct rk_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 rk_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 rk_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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size_t sig_len;
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char sig_data[1]; /* also includes signer */
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};
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struct rk_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 rk_sshfp_record {
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unsigned algorithm;
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unsigned type;
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size_t sshfp_len;
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u_char sshfp_data[1];
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};
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struct rk_ds_record {
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unsigned key_tag;
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unsigned algorithm;
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unsigned digest_type;
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size_t digest_len;
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u_char digest_data[1];
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};
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struct rk_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 rk_mx_record *mx;
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struct rk_mx_record *afsdb; /* mx and afsdb are identical */
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struct rk_srv_record *srv;
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struct in_addr *a;
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char *txt;
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struct rk_key_record *key;
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struct rk_cert_record *cert;
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struct rk_sig_record *sig;
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struct rk_sshfp_record *sshfp;
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struct rk_ds_record *ds;
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}u;
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struct rk_resource_record *next;
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};
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#define rk_DNS_MAX_PACKET_SIZE 0xffff
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struct rk_dns_header {
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unsigned id;
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unsigned flags;
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#define rk_DNS_HEADER_RESPONSE_FLAG 1
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#define rk_DNS_HEADER_AUTHORITIVE_ANSWER 2
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#define rk_DNS_HEADER_TRUNCATED_MESSAGE 4
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#define rk_DNS_HEADER_RECURSION_DESIRED 8
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#define rk_DNS_HEADER_RECURSION_AVAILABLE 16
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#define rk_DNS_HEADER_AUTHENTIC_DATA 32
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#define rk_DNS_HEADER_CHECKING_DISABLED 64
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unsigned opcode;
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unsigned response_code;
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unsigned qdcount;
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unsigned ancount;
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unsigned nscount;
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unsigned arcount;
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};
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struct rk_dns_reply{
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struct rk_dns_header h;
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struct rk_dns_query q;
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struct rk_resource_record *head;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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ROKEN_LIB_FUNCTION struct rk_dns_reply* ROKEN_LIB_CALL
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rk_dns_lookup(const char *, const char *);
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ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
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rk_dns_free_data(struct rk_dns_reply *);
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ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
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rk_dns_string_to_type(const char *name);
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ROKEN_LIB_FUNCTION const char * ROKEN_LIB_CALL
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rk_dns_type_to_string(int type);
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ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
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rk_dns_srv_order(struct rk_dns_reply*);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __RESOLVE_H__ */
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