varia. now correctly sniffs in non-blocking mode (essential for multi-interface

sniffing), while requires at least libpcap 0.8

connection.cpp

@@ -64,7 +64,7 @@ u_int32_t PackList::sumanddel (timeval t)
 /* packet may be deleted by caller */
 Connection::Connection (Packet * packet)
 {
-	if (ROBUST)
+	if (!ROBUST)
 		assert (packet != NULL);
 	connections = new ConnList (this, connections);
 	sent_packets = new PackList ();