53e1b68390
This follows what the kernel is doing, c.f. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stddef.h>
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#include "alloc-util.h"
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#include "apparmor-util.h"
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#include "fileio.h"
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#include "parse-util.h"
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bool mac_apparmor_use(void) {
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static int cached_use = -1;
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if (cached_use < 0) {
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_cleanup_free_ char *p = NULL;
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cached_use =
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read_one_line_file("/sys/module/apparmor/parameters/enabled", &p) >= 0 &&
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parse_boolean(p) > 0;
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}
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return cached_use;
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}
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