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freebsd/lib/dns/rdatasetiter.c
2012-04-04 23:11:25 +00:00

81 lines
2.1 KiB
C

/*
* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2001 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: rdatasetiter.c,v 1.16 2007/06/19 23:47:16 tbox Exp $ */
/*! \file */
#include <config.h>
#include <stddef.h>
#include <isc/util.h>
#include <dns/rdataset.h>
#include <dns/rdatasetiter.h>
void
dns_rdatasetiter_destroy(dns_rdatasetiter_t **iteratorp) {
/*
* Destroy '*iteratorp'.
*/
REQUIRE(iteratorp != NULL);
REQUIRE(DNS_RDATASETITER_VALID(*iteratorp));
(*iteratorp)->methods->destroy(iteratorp);
ENSURE(*iteratorp == NULL);
}
isc_result_t
dns_rdatasetiter_first(dns_rdatasetiter_t *iterator) {
/*
* Move the rdataset cursor to the first rdataset at the node (if any).
*/
REQUIRE(DNS_RDATASETITER_VALID(iterator));
return (iterator->methods->first(iterator));
}
isc_result_t
dns_rdatasetiter_next(dns_rdatasetiter_t *iterator) {
/*
* Move the rdataset cursor to the next rdataset at the node (if any).
*/
REQUIRE(DNS_RDATASETITER_VALID(iterator));
return (iterator->methods->next(iterator));
}
void
dns_rdatasetiter_current(dns_rdatasetiter_t *iterator,
dns_rdataset_t *rdataset)
{
/*
* Return the current rdataset.
*/
REQUIRE(DNS_RDATASETITER_VALID(iterator));
REQUIRE(DNS_RDATASET_VALID(rdataset));
REQUIRE(! dns_rdataset_isassociated(rdataset));
iterator->methods->current(iterator, rdataset);
}