Imported Upstream version 5.0.2

1 files changed, 60 insertions, 0 deletions

diff --git a/src/libstrongswan/networking/host_resolver.h b/src/libstrongswan/networking/host_resolver.h
new file mode 100644
index 000000000..f944a9cdf
--- /dev/null
+++ b/src/libstrongswan/networking/host_resolver.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * 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.
+ */
+
+/**
+ * @defgroup host_resolver host_resolver
+ * @{ @ingroup networking
+ */
+
+#ifndef HOST_RESOLVER_H_
+#define HOST_RESOLVER_H_
+
+#include "host.h"
+
+typedef struct host_resolver_t host_resolver_t;
+
+/**
+ * Resolve hosts by DNS name but do so in a separate thread (calling
+ * getaddrinfo(3) directly might block indefinitely, or at least a very long
+ * time if no DNS servers are reachable).
+ */
+struct host_resolver_t {
+
+	/**
+	 * Resolve host from the given DNS name.
+	 *
+	 * @param name		name to lookup
+	 * @param family	requested address family
+	 * @return			resolved host or NULL if failed or canceled
+	 */
+	host_t *(*resolve)(host_resolver_t *this, char *name, int family);
+
+	/**
+	 * Flush the queue of queries. No new queries will be accepted afterwards.
+	 */
+	void (*flush)(host_resolver_t *this);
+
+	/**
+	 * Destroy a host_resolver_t.
+	 */
+	void (*destroy)(host_resolver_t *this);
+};
+
+/**
+ * Create a host_resolver_t instance.
+ */
+host_resolver_t *host_resolver_create();
+
+#endif /** HOST_RESOLVER_H_ @}*/