DBusMessage *reply;if(agent_if ==NULL|| agent_if->pending_reply ==NULL)return0;if(identity ==NULL|| passphrase ==NULL)return-EINVAL; reply =dbus_message_new_method_return(agent_if->pending_reply);if(reply ==NULL)return-ENOMEM; dbus_message_iter_init_append(reply, &arg);if(cui_dbus...