Fixed a couple bugs in the smb-* scripts involving undeclared variables. These only cropped up if the guest/anonymous accounts were disabled, which I'd never seen before.

nselib/smb.lua

@@ -1274,7 +1274,7 @@ function start_session_basic(smb, log_errors, overrides)
 		stdnse.print_debug(1, "SMB: ERROR: %s", username)
 	end
 
-	return false, get_status_name(status)
+	return false, username
 end
 
 function start_session_extended(smb, log_errors, overrides)

scripts/smb-system-info.nse

@@ -93,6 +93,7 @@ end
 local function get_info_registry(host)
 
 	local result = {}
+	local status, smbstate, bind_result, openhklm_result
 
 	-- Create the SMB session
 	status, smbstate = msrpc.start_smb(host, msrpc.WINREG_PATH)