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36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/*
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* Copyright (c) 2006-2009 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __DNS_H__
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#define __DNS_H__
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#include "common.h"
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typedef enum {
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QR_QUERY = 0,
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QR_ANSWER = 1
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} qr_t;
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extern int dnsc_use_edns0;
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int dns_encode(char *, size_t, struct query *, qr_t, char *, size_t);
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int dns_encode_ns_response(char *buf, size_t buflen, struct query *q, char *topdomain);
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int dns_encode_a_response(char *buf, size_t buflen, struct query *q);
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unsigned short dns_get_id(char *packet, size_t packetlen);
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int dns_decode(char *, size_t, struct query *, qr_t, char *, size_t);
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#endif /* _DNS_H_ */
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