+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetAndSetEnvironment")) {
+ char **l_set = NULL, **l_unset = NULL, **e = NULL, **f = NULL;
+ DBusMessageIter iter;
+
+ if (!dbus_message_iter_init(message, &iter))
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ r = bus_parse_strv_iter(&iter, &l_unset);
+ if (r < 0) {
+ if (r == -ENOMEM)
+ goto oom;
+
+ return bus_send_error_reply(connection, message, NULL, r);
+ }
+
+ if (!dbus_message_iter_next(&iter)) {
+ strv_free(l_unset);
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+ }
+
+ r = bus_parse_strv_iter(&iter, &l_set);
+ if (r < 0) {
+ strv_free(l_unset);
+ if (r == -ENOMEM)
+ goto oom;
+
+ return bus_send_error_reply(connection, message, NULL, r);
+ }
+
+ e = strv_env_delete(m->environment, 1, l_unset);
+ strv_free(l_unset);
+
+ if (!e) {
+ strv_free(l_set);
+ goto oom;
+ }
+
+ f = strv_env_merge(2, e, l_set);
+ strv_free(l_set);
+ strv_free(e);
+
+ if (!f)
+ goto oom;
+
+ if (!(reply = dbus_message_new_method_return(message))) {
+ strv_free(f);
+ goto oom;
+ }
+
+ strv_free(m->environment);
+ m->environment = f;
+