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-rw-r--r--lib/dns/rdatasetiter.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/lib/dns/rdatasetiter.c b/lib/dns/rdatasetiter.c
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+++ b/lib/dns/rdatasetiter.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+/*! \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);
+}