40 lines
974 B
C
40 lines
974 B
C
/*
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* (C) Masami Komiya <mkomiya@sonare.it> 2005
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* Copyright 2009, Robin Getz <rgetz@blackfin.uclinux.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2, or (at
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* your option) any later version.
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*/
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#ifndef __DNS_H__
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#define __DNS_H__
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#define DNS_SERVICE_PORT 53
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#define DNS_TIMEOUT 10000UL
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/* http://en.wikipedia.org/wiki/List_of_DNS_record_types */
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enum dns_query_type {
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DNS_A_RECORD = 0x01,
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DNS_CNAME_RECORD = 0x05,
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DNS_MX_RECORD = 0x0f,
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};
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/*
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* DNS network packet
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*/
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struct header {
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uint16_t tid; /* Transaction ID */
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uint16_t flags; /* Flags */
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uint16_t nqueries; /* Questions */
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uint16_t nanswers; /* Answers */
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uint16_t nauth; /* Authority PRs */
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uint16_t nother; /* Other PRs */
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unsigned char data[1]; /* Data, variable length */
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};
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extern void DnsStart(void); /* Begin DNS */
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#endif
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