- if (!(m = dbus_message_new_method_call("org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "StartUnit"))) {
- log_error("Could not allocate message.");
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &target,
- DBUS_TYPE_STRING, &mode,
- DBUS_TYPE_INVALID)) {
- log_error("Could not attach target and flag information to message.");
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(s->bus, m, -1, &error))) {
- log_error("Failed to start unit: %s", bus_error_message(&error));
- goto finish;
+ r = sd_bus_call_method(
+ s->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartUnit",
+ &error,
+ NULL,
+ "ss", target, mode);
+ if (r < 0) {
+ log_error("Failed to change runlevel: %s", bus_error_message(&error, -r));
+ return;