(prot_a_parse_packet): Disable the session after the initial handshake

	if the dns resolution hasn't completed yet.

src/server/prot-a.c

 /*
- * $Id: prot-a.c,v 0.81 2003/08/04 11:58:27 ceder Exp $
+ * $Id: prot-a.c,v 0.82 2003/08/05 09:50:57 ceder Exp $
  * Copyright (C) 1991-2002  Lysator Academic Computer Association.
  *
  * This file is part of the LysKOM server.
@@ -419,9 +419,16 @@ prot_a_parse_packet(Connection *client)
 	isc_flush(client->isc_session);
 	isc_set_acceptable_idle(client->isc_session,
 				param.login_timeout);
-	BUG(("[Client %lu is logged on]\n", client->session_no));
+	BUG(("[Handshake with client %lu completed]\n", client->session_no));
     }	
 
+    if (client->dns_done == FALSE)
+    {
+	isc_disable(client->isc_session);
+	client->blocked_by_dns = TRUE;
+	return;
+    }
+
     switch(client->parse_pos)
     {
     case 0:			/* Get ref_no */