if (!(dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE_AS_STRING, &sub)) ||
!(dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &rdata, size)) ||
!(dbus_message_iter_close_container(&iter, &sub)))
return -1;
if (!(dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE_AS_STRING, &sub)) ||
!(dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &rdata, size)) ||
!(dbus_message_iter_close_container(&iter, &sub)))
return -1;