/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
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 <errno.h>
#include <getopt.h>
#include <stdbool.h>
#include <stdlib.h>
#include "util.h"
#include "virt.h"
static bool arg_quiet = false;
static enum {
static void help(void) {
printf("%s [OPTIONS...]\n\n"
"Detect execution in a virtualized environment.\n\n"
" -h --help Show this help\n"
" --version Show package version\n"
" -c --container Only detect whether we are run in a container\n"
" -v --vm Only detect whether we are run in a VM\n"
" -r --chroot Detect whether we are run in a chroot() environment\n"
" -q --quiet Don't output anything, just set return value\n"
}
enum {
};
{}
};
int c;
switch (c) {
case 'h':
help();
return 0;
case ARG_VERSION:
return version();
case 'q':
arg_quiet = true;
break;
case 'c':
break;
case 'v':
break;
case 'r':
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
return -EINVAL;
}
return 1;
}
int r;
/* This is mostly intended to be used for scripts which want
* to detect whether we are being run in a virtualized
* environment or not */
log_open();
if (r <= 0)
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
switch (arg_mode) {
case ONLY_VM:
r = detect_vm();
if (r < 0) {
log_error_errno(r, "Failed to check for VM: %m");
return EXIT_FAILURE;
}
break;
case ONLY_CONTAINER:
r = detect_container();
if (r < 0) {
log_error_errno(r, "Failed to check for container: %m");
return EXIT_FAILURE;
}
break;
case ONLY_CHROOT:
r = running_in_chroot();
if (r < 0) {
log_error_errno(r, "Failed to check for chroot() environment: %m");
return EXIT_FAILURE;
}
return r ? EXIT_SUCCESS : EXIT_FAILURE;
case ANY_VIRTUALIZATION:
default:
r = detect_virtualization();
if (r < 0) {
log_error_errno(r, "Failed to check for virtualization: %m");
return EXIT_FAILURE;
}
break;
}
if (!arg_quiet)
}