src/detect-virt.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  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   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <stdlib.h>
  23 #include <stdbool.h>
  24 #include <errno.h>
  25 #include <string.h>
  26
  27 #include "util.h"
  28 #include "virt.h"
  29
  30 int main(int argc, char *argv[]) {
  31         Virtualization r;
  32         const char *id;
  33
  34         /* This is mostly intended to be used for scripts which want
  35          * to detect whether we are being run in a virtualized
  36          * environment or not */
  37
  38         r = detect_virtualization(&id);
  39         if (r < 0) {
  40                 log_error("Failed to check for virtualization: %s", strerror(-r));
  41                 return EXIT_FAILURE;
  42         }
  43
  44         if (r > 0)
  45                 puts(id);
  46
  47         return r > 0 ? EXIT_SUCCESS : EXIT_FAILURE;
  48 }