Support getting route information for a specific destination

using SIOCGETRT. Patch by Hugo Santos.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20494 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/posix/net/route.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006, Haiku, Inc. All Rights Reserved.
+ * Copyright 2006-2007, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _NET_ROUTE_H
@@ -27,6 +27,7 @@ struct route_entry {
 	struct sockaddr	*destination;
 	struct sockaddr	*mask;
 	struct sockaddr	*gateway;
+	struct sockaddr	*source;
 	uint32_t		flags;
 	uint32_t		mtu;
 };