Better null session handle

cme/connection.py

@@ -79,7 +79,8 @@ class connection(object):
             self.enum_host_info()
             self.proto_logger()
             self.print_host_info()
-            self.login()
+            # because of null session
+            if self.login() or (self.username == '' and self.password == ''):
                 if hasattr(self.args, 'module') and self.args.module:
                     self.call_modules()
                 else:

cme/protocols/smb.py

@@ -533,7 +533,7 @@ class smb(connection):
                 self.username
             )[0][0]
         except:
-            return
+            pass
         permissions = []
 
         try: