Implemented rr_set_t interface

src/libstrongswan/Makefile.am

@@ -26,7 +26,7 @@ networking/host.c networking/host_resolver.c networking/packet.c \
 networking/tun_device.c \
 pen/pen.c plugins/plugin_loader.c plugins/plugin_feature.c processing/jobs/job.c \
 processing/jobs/callback_job.c processing/processor.c processing/scheduler.c \
-resolver/resolver_manager.c \
+resolver/resolver_manager.c resolver/rr_set.c \
 selectors/traffic_selector.c threading/thread.c threading/thread_value.c \
 threading/mutex.c threading/semaphore.c threading/rwlock.c threading/spinlock.c \
 utils/utils.c utils/chunk.c utils/debug.c utils/enum.c utils/identification.c \

src/libstrongswan/resolver/rr_set.c

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2012 Reto Guadagnini
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "rr_set.h"
+
+#include <library.h>
+#include <utils/debug.h>
+
+typedef struct private_rr_set_t private_rr_set_t;
+
+/**
+* private data of the rr_set
+*/
+struct private_rr_set_t {
+
+	/**
+	 * public functions
+	 */
+	rr_set_t public;
+
+	/**
+	 * List of Resource Records which form the RRset
+	 */
+	linked_list_t *rr_list;
+
+	/**
+	 * List of the signatures (RRSIGs) of the Resource Records contained in
+	 * this set
+	 */
+	linked_list_t *rrsig_list;
+};
+
+METHOD(rr_set_t, create_rr_enumerator, enumerator_t*,
+	private_rr_set_t *this)
+{
+	return this->rr_list->create_enumerator(this->rr_list);
+}
+
+METHOD(rr_set_t, create_rrsig_enumerator, enumerator_t*,
+	private_rr_set_t *this)
+{
+	if (this->rrsig_list)
+	{
+		return this->rrsig_list->create_enumerator(this->rrsig_list);
+	}
+	return NULL;
+}
+
+METHOD(rr_set_t, destroy, void,
+	private_rr_set_t *this)
+{
+	this->rr_list->destroy_offset(this->rr_list,
+								  offsetof(rr_t, destroy));
+	if (this->rrsig_list)
+	{
+		this->rrsig_list->destroy_offset(this->rrsig_list,
+										 offsetof(rr_t, destroy));
+	}
+	free(this);
+}
+
+/*
+ * see header
+ */
+rr_set_t *rr_set_create(linked_list_t *list_of_rr, linked_list_t *list_of_rrsig)
+{
+	private_rr_set_t *this;
+
+	INIT(this,
+		.public = {
+			.create_rr_enumerator = _create_rr_enumerator,
+			.create_rrsig_enumerator = _create_rrsig_enumerator,
+			.destroy = _destroy,
+		},
+	);
+
+	if (list_of_rr == NULL)
+	{
+		DBG1(DBG_LIB, "could not create a rr_set without a list_of_rr");
+		_destroy(this);
+		return NULL;
+	}
+	this->rr_list = list_of_rr;
+	this->rrsig_list = list_of_rrsig;
+
+	return &this->public;
+}
+

src/libstrongswan/resolver/rr_set.h

@@ -25,6 +25,7 @@ typedef struct rr_set_t rr_set_t;
 
 #include <library.h>
 #include <collections/enumerator.h>
+#include <collections/linked_list.h>
 
 /**
  * A set of DNS Resource Records.
@@ -64,4 +65,15 @@ struct rr_set_t {
 	void (*destroy) (rr_set_t *this);
 };
 
+/**
+ * Create an rr_set instance.
+ *
+ * @param list_of_rr		list of Resource Records which form this RRset
+ * @param list_of_rrsig		list of the signatures (RRSIGs) of the
+ * 							Resource Records of this set
+ * @return					Resource Record set, NULL on failure
+ */
+rr_set_t *rr_set_create(linked_list_t *list_of_rr,
+						linked_list_t *list_of_rrsig);
+
 #endif /** RR_SET_H_ @}*/