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 Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser 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;