src/shared/apparmor-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <stddef.h>
   4
   5 #include "alloc-util.h"
   6 #include "apparmor-util.h"
   7 #include "fileio.h"
   8 #include "parse-util.h"
   9
  10 bool mac_apparmor_use(void) {
  11         static int cached_use = -1;
  12
  13         if (cached_use < 0) {
  14                 _cleanup_free_ char *p = NULL;
  15
  16                 cached_use =
  17                         read_one_line_file("/sys/module/apparmor/parameters/enabled", &p) >= 0 &&
  18                         parse_boolean(p) > 0;
  19         }
  20
  21         return cached_use;
  22 }