1 /* 2 * Copyright (C) Internet Systems Consortium, Inc. ("ISC") 3 * 4 * This Source Code Form is subject to the terms of the Mozilla Public 5 * License, v. 2.0. If a copy of the MPL was not distributed with this 6 * file, you can obtain one at https://mozilla.org/MPL/2.0/. 7 * 8 * See the COPYRIGHT file distributed with this work for additional 9 * information regarding copyright ownership. 10 */ 11 12 /*! \file */ 13 14 #include <stddef.h> 15 16 #include <isc/util.h> 17 18 #include <dns/rdataset.h> 19 #include <dns/rdatasetiter.h> 20 21 void dns_rdatasetiter_destroy(dns_rdatasetiter_t ** iteratorp)22dns_rdatasetiter_destroy(dns_rdatasetiter_t **iteratorp) { 23 /* 24 * Destroy '*iteratorp'. 25 */ 26 27 REQUIRE(iteratorp != NULL); 28 REQUIRE(DNS_RDATASETITER_VALID(*iteratorp)); 29 30 (*iteratorp)->methods->destroy(iteratorp); 31 32 ENSURE(*iteratorp == NULL); 33 } 34 35 isc_result_t dns_rdatasetiter_first(dns_rdatasetiter_t * iterator)36dns_rdatasetiter_first(dns_rdatasetiter_t *iterator) { 37 /* 38 * Move the rdataset cursor to the first rdataset at the node (if any). 39 */ 40 41 REQUIRE(DNS_RDATASETITER_VALID(iterator)); 42 43 return (iterator->methods->first(iterator)); 44 } 45 46 isc_result_t dns_rdatasetiter_next(dns_rdatasetiter_t * iterator)47dns_rdatasetiter_next(dns_rdatasetiter_t *iterator) { 48 /* 49 * Move the rdataset cursor to the next rdataset at the node (if any). 50 */ 51 52 REQUIRE(DNS_RDATASETITER_VALID(iterator)); 53 54 return (iterator->methods->next(iterator)); 55 } 56 57 void dns_rdatasetiter_current(dns_rdatasetiter_t * iterator,dns_rdataset_t * rdataset)58dns_rdatasetiter_current(dns_rdatasetiter_t *iterator, 59 dns_rdataset_t *rdataset) { 60 /* 61 * Return the current rdataset. 62 */ 63 64 REQUIRE(DNS_RDATASETITER_VALID(iterator)); 65 REQUIRE(DNS_RDATASET_VALID(rdataset)); 66 REQUIRE(!dns_rdataset_isassociated(rdataset)); 67 68 iterator->methods->current(iterator, rdataset); 69 } 70