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/*
* Copyright (C) 1999, 2000 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.
*/
/* $Id: dbiterator.c,v 1.11 2000/08/01 01:22:16 tale Exp $ */
#include <config.h>
#include <isc/util.h>
#include <dns/dbiterator.h>
#include <dns/name.h>
void
dns_dbiterator_destroy(dns_dbiterator_t **iteratorp) {
/*
* Destroy '*iteratorp'.
*/
REQUIRE(iteratorp != NULL);
REQUIRE(DNS_DBITERATOR_VALID(*iteratorp));
(*iteratorp)->methods->destroy(iteratorp);
ENSURE(*iteratorp == NULL);
}
isc_result_t
dns_dbiterator_first(dns_dbiterator_t *iterator) {
/*
* Move the node cursor to the first node in the database (if any).
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
return (iterator->methods->first(iterator));
}
isc_result_t
dns_dbiterator_last(dns_dbiterator_t *iterator) {
/*
* Move the node cursor to the first node in the database (if any).
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
return (iterator->methods->last(iterator));
}
isc_result_t
dns_dbiterator_seek(dns_dbiterator_t *iterator, dns_name_t *name) {
/*
* Move the node cursor to the node with name 'name'.
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
return (iterator->methods->seek(iterator, name));
}
isc_result_t
dns_dbiterator_prev(dns_dbiterator_t *iterator) {
/*
* Move the node cursor to the previous node in the database (if any).
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
return (iterator->methods->prev(iterator));
}
isc_result_t
dns_dbiterator_next(dns_dbiterator_t *iterator) {
/*
* Move the node cursor to the next node in the database (if any).
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
return (iterator->methods->next(iterator));
}
isc_result_t
dns_dbiterator_current(dns_dbiterator_t *iterator, dns_dbnode_t **nodep,
dns_name_t *name)
{
/*
* Return the current node.
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
REQUIRE(nodep != NULL && *nodep == NULL);
REQUIRE(name == NULL || dns_name_hasbuffer(name));
return (iterator->methods->current(iterator, nodep, name));
}
isc_result_t
dns_dbiterator_pause(dns_dbiterator_t *iterator) {
/*
* Pause iteration.
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
return (iterator->methods->pause(iterator));
}
isc_result_t
dns_dbiterator_origin(dns_dbiterator_t *iterator, dns_name_t *name) {
/*
* Return the origin to which returned node names are relative.
*/
REQUIRE(DNS_DBITERATOR_VALID(iterator));
REQUIRE(iterator->relative_names);
REQUIRE(dns_name_hasbuffer(name));
return (iterator->methods->origin(iterator, name));
}
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