[thirdparty/systemd.git] / src / shared / tomoyo-util.c

/***
  This file is part of systemd.

  Copyright 2017 Shawn Landden

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <unistd.h>

#include "tomoyo-util.h"

bool mac_tomoyo_use(void) {
        static int cached_use = -1;

        if (cached_use < 0)
                cached_use = (access("/sys/kernel/security/tomoyo/version",
                                     F_OK) == 0);

        return cached_use;
}
Commit	Line	Data
ed440f6b SL	1	/***
	2	This file is part of systemd.
	3
	4	Copyright 2017 Shawn Landden
	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
	20	#include <unistd.h>
	21
	22	#include "tomoyo-util.h"
	23
	24	bool mac_tomoyo_use(void) {
	25	static int cached_use = -1;
	26
	27	if (cached_use < 0)
	28	cached_use = (access("/sys/kernel/security/tomoyo/version",
	29	F_OK) == 0);
	30
	31	return cached_use;
	32	}