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diff --git a/src/shutdownd.h b/src/shutdownd.h
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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef fooshutdowndhfoo
+#define fooshutdowndhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "util.h"
+#include "macro.h"
+
+/* This is a private message, we don't care much about ABI
+ * stability. */
+
+_packed_ struct shutdownd_command {
+ usec_t elapse;
+ char mode; /* H, P, r, i.e. the switches usually passed to
+ * shutdown to select whether to halt, power-off or
+ * reboot the machine */
+ bool dry_run;
+ bool warn_wall;
+
+ /* Yepp, sometimes we are lazy and use fixed-size strings like
+ * this one. Shame on us. But then again, we'd have to
+ * pre-allocate the receive buffer anyway, so there's nothing
+ * too bad here. */
+ char wall_message[4096];
+};
+
+#endif