Applying patch by Atis Elsts:

* fix connecting to INADDR_ANY work for tcp (effectively will
  connect to INADDR_LOOPBACK)
* add same behaviour to udp
* move some ipv4-specific code out of tcp into ipv4 address module
* bind() and connect() now reject addresses from non-matching 
  families
* myself: minor cleanup in udp.cpp with respect to 80 chars limit
Closes #5716 - many thanks!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36192 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/net/net_datalink.h

@@ -113,6 +113,7 @@ struct net_address_module_info {
 	bool (*equal_masked_addresses)(const sockaddr *a, const sockaddr *b, 
 					const sockaddr *mask);
 	bool (*is_empty_address)(const sockaddr *address, bool checkPort);
+	bool (*is_same_family)(const sockaddr *address);
 
 	int32 (*first_mask_bit)(const sockaddr *mask);
 
@@ -142,6 +143,8 @@ struct net_address_module_info {
 
 	bool (*matches_broadcast_address)(const sockaddr *address, 
 					const sockaddr *mask, const sockaddr *broadcastAddr);
+
+	void (*get_loopback_address)(sockaddr *result);
 };
 
 #endif	// NET_DATALINK_H