Add a limit of 10 unidentified connections per IP

Everything which isn't a CClient with a successful login counts as an
unidentified connection in this context. Modules who don't want this kind of
limit on their listening sockets can override CSocket::ConnectionFrom(), but
their sockets will still count towards this limit.


git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1561 726aef4b-f618-498e-8847-2d620e286838

Client.h

@@ -85,6 +85,8 @@ public:
 		SetMaxBufferThreshold(1024);
 
 		StartLoginTimeout();
+
+		SetNick("unknown-nick");
 	}
 
 	virtual ~CClient();