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/*
* Copyright (C) 2004-2007, 2010 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: ds.h,v 1.12 2010-12-23 23:47:08 tbox Exp $ */
#ifndef DNS_DS_H
#define DNS_DS_H 1
#include <isc/lang.h>
#include <dns/types.h>
#define DNS_DSDIGEST_SHA1 (1)
#define DNS_DSDIGEST_SHA256 (2)
#define DNS_DSDIGEST_GOST (3)
/* should not be here... */
#define ISC_GOST_DIGESTLENGTH 32U
/*
* Assuming SHA-256 digest type.
*/
#define DNS_DS_BUFFERSIZE (36)
ISC_LANG_BEGINDECLS
isc_result_t
dns_ds_buildrdata(dns_name_t *owner, dns_rdata_t *key,
unsigned int digest_type, unsigned char *buffer,
dns_rdata_t *rdata);
/*%<
* Build the rdata of a DS record.
*
* Requires:
*\li key Points to a valid DNS KEY record.
*\li buffer Points to a temporary buffer of at least
* #DNS_DS_BUFFERSIZE bytes.
*\li rdata Points to an initialized dns_rdata_t.
*
* Ensures:
* \li *rdata Contains a valid DS rdata. The 'data' member refers
* to 'buffer'.
*/
isc_boolean_t
dns_ds_digest_supported(unsigned int digest_type);
/*%<
* Is this digest algorithm supported by dns_ds_buildrdata()?
*/
ISC_LANG_ENDDECLS
#endif /* DNS_DS_H */
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