2 This file is part of systemd.
4 Copyright 2010 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include "musl_missing.h"
27 int main(int argc, char *argv[]) {
28 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
32 log_error("Incorrect number of arguments.");
36 elogind_set_program_name(argv[0]);
37 log_set_target(LOG_TARGET_AUTO);
38 log_parse_environment();
42 /* We send this event to the private D-Bus socket and then the
43 * system instance will forward this to the system bus. We do
44 * this to avoid an activation loop when we start dbus when we
45 * are called when the dbus service is shut down. */
47 r = bus_connect_system_systemd(&bus);
49 /* Unlike in systemd where this has to use a private socket,
50 since elogind doesn't associate control groups with services
51 and doesn't manage the dbus service, we can just use the
53 r = sd_bus_open_system(&bus);
58 /* If we couldn't connect we assume this was triggered
59 * while systemd got restarted/transitioned from
60 * initrd to the system, so let's ignore this */
61 log_debug_errno(r, "Failed to get D-Bus connection: %m");
63 /* If dbus isn't running or responding, there is nothing
64 * we can do about it. */
65 log_debug_errno(r, "Failed to open system bus: %m");
70 r = sd_bus_emit_signal(bus,
71 "/org/freedesktop/elogind/agent",
72 "org.freedesktop.elogind.Agent",
77 log_debug_errno(r, "Failed to send signal message on private connection: %m");
79 log_debug_errno(r, "Failed to send signal message: %m");