src/shared/tomoyo-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright © 2017 Shawn Landden
   4 ***/
   5
   6 #include <unistd.h>
   7
   8 #include "tomoyo-util.h"
   9
  10 bool mac_tomoyo_use(void) {
  11         static int cached_use = -1;
  12
  13         if (cached_use < 0)
  14                 cached_use = (access("/sys/kernel/security/tomoyo/version",
  15                                      F_OK) == 0);
  16
  17         return cached_use;
  18 }