1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2011 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include <systemd/sd-daemon.h>
26 #include <systemd/sd-login.h>
28 #include "logind-acl.h"
32 int main(int argc, char *argv[]) {
34 const char *path = NULL, *seat;
35 bool changed_acl = false;
38 log_set_target(LOG_TARGET_AUTO);
39 log_parse_environment();
44 if (argc < 2 || argc > 3) {
45 log_error("This program expects one or two arguments.");
50 /* Make sure we don't muck around with ACLs the system is not
56 seat = argc < 3 || isempty(argv[2]) ? "seat0" : argv[2];
58 r = sd_seat_get_active(seat, NULL, &uid);
60 /* No active session on this seat */
64 log_error("Failed to determine active user on seat %s.", seat);
68 r = devnode_acl(path, true, false, 0, true, uid);
70 log_error("Failed to apply ACL on %s: %s", path, strerror(-r));
78 if (path && !changed_acl) {
80 /* Better be safe that sorry and reset ACL */
82 k = devnode_acl(path, true, false, 0, false, 0);
84 log_error("Failed to apply ACL on %s: %s", path, strerror(-k));
90 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;