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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
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 <dbus/dbus.h>
#include <stdlib.h>
#include "log.h"
#include "dbus-common.h"
int main(int argc, char *argv[]) {
DBusError error;
DBusConnection *bus = NULL;
DBusMessage *m = NULL;
int r = EXIT_FAILURE;
dbus_error_init(&error);
if (argc != 2) {
log_error("Incorrect number of arguments.");
goto finish;
}
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
log_parse_environment();
log_open();
/* We send this event to the private D-Bus socket and then the
* system instance will forward this to the system bus. We do
* this to avoid an activation loop when we start dbus when we
* are called when the dbus service is shut down. */
if (!(bus = dbus_connection_open_private("unix:path=/run/systemd/private", &error))) {
#ifndef LEGACY
dbus_error_free(&error);
/* Retry with the pre v21 socket name, to ease upgrades */
if (!(bus = dbus_connection_open_private("unix:abstract=/org/freedesktop/systemd1/private", &error))) {
#endif
log_error("Failed to get D-Bus connection: %s", bus_error_message(&error));
goto finish;
}
#ifndef LEGACY
}
#endif
if (bus_check_peercred(bus) < 0) {
log_error("Bus owner not root.");
goto finish;
}
if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1/agent", "org.freedesktop.systemd1.Agent", "Released"))) {
log_error("Could not allocate signal message.");
goto finish;
}
if (!dbus_message_append_args(m,
DBUS_TYPE_STRING, &argv[1],
DBUS_TYPE_INVALID)) {
log_error("Could not attach group information to signal message.");
goto finish;
}
if (!dbus_connection_send(bus, m, NULL)) {
log_error("Failed to send signal message on private connection.");
goto finish;
}
r = EXIT_SUCCESS;
finish:
if (bus) {
dbus_connection_flush(bus);
dbus_connection_close(bus);
dbus_connection_unref(bus);
}
if (m)
dbus_message_unref(m);
dbus_error_free(&error);
return r;
}
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