/*
 * Copyright (C) 2001  Internet Software Consortium.
 *
 * Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM
 * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
 * INTERNET SOFTWARE CONSORTIUM 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.
 */

/* $ISC: zonekey.c,v 1.3 2001/02/26 02:49:19 bwelling Exp $ */

#include <config.h>

#include <isc/result.h>
#include <isc/types.h>
#include <isc/util.h>

#include <dns/keyvalues.h>
#include <dns/rdata.h>
#include <dns/rdatastruct.h>
#include <dns/types.h>
#include <dns/zonekey.h>

isc_boolean_t
dns_zonekey_iszonekey(dns_rdata_t *keyrdata) {
	isc_result_t result;
	dns_rdata_key_t key;
	isc_boolean_t iszonekey = ISC_TRUE;

	REQUIRE(keyrdata != NULL);

	result = dns_rdata_tostruct(keyrdata, &key, NULL);
	if (result != ISC_R_SUCCESS)
		return (ISC_FALSE);

	if ((key.flags & DNS_KEYTYPE_NOAUTH) != 0)
		iszonekey = ISC_FALSE;
	if ((key.flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE)
		iszonekey = ISC_FALSE;
	if (key.protocol != DNS_KEYPROTO_DNSSEC &&
	key.protocol != DNS_KEYPROTO_ANY)
		iszonekey = ISC_FALSE;
	
	return (iszonekey);
}