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663996b3 MS |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2010 Lennart Poettering | |
5 | ||
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. | |
10 | ||
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. | |
15 | ||
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/>. | |
18 | ***/ | |
19 | ||
663996b3 MS |
20 | #include <stdlib.h> |
21 | ||
60f067b4 | 22 | #include "sd-bus.h" |
db2df898 | 23 | |
60f067b4 | 24 | #include "bus-util.h" |
db2df898 | 25 | #include "log.h" |
663996b3 MS |
26 | |
27 | int main(int argc, char *argv[]) { | |
4c89c718 | 28 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
60f067b4 | 29 | int r; |
663996b3 MS |
30 | |
31 | if (argc != 2) { | |
32 | log_error("Incorrect number of arguments."); | |
60f067b4 | 33 | return EXIT_FAILURE; |
663996b3 MS |
34 | } |
35 | ||
36 | log_set_target(LOG_TARGET_AUTO); | |
37 | log_parse_environment(); | |
38 | log_open(); | |
39 | ||
40 | /* We send this event to the private D-Bus socket and then the | |
41 | * system instance will forward this to the system bus. We do | |
42 | * this to avoid an activation loop when we start dbus when we | |
43 | * are called when the dbus service is shut down. */ | |
44 | ||
6300502b | 45 | r = bus_connect_system_systemd(&bus); |
60f067b4 JS |
46 | if (r < 0) { |
47 | /* If we couldn't connect we assume this was triggered | |
48 | * while systemd got restarted/transitioned from | |
49 | * initrd to the system, so let's ignore this */ | |
f47781d8 | 50 | log_debug_errno(r, "Failed to get D-Bus connection: %m"); |
60f067b4 | 51 | return EXIT_FAILURE; |
663996b3 MS |
52 | } |
53 | ||
60f067b4 JS |
54 | r = sd_bus_emit_signal(bus, |
55 | "/org/freedesktop/systemd1/agent", | |
56 | "org.freedesktop.systemd1.Agent", | |
57 | "Released", | |
58 | "s", argv[1]); | |
59 | if (r < 0) { | |
f47781d8 | 60 | log_debug_errno(r, "Failed to send signal message on private connection: %m"); |
60f067b4 | 61 | return EXIT_FAILURE; |
663996b3 MS |
62 | } |
63 | ||
60f067b4 | 64 | return EXIT_SUCCESS; |
663996b3 | 65 | } |