diff options
Diffstat (limited to 'sys-utils/unshare.c')
| -rw-r--r-- | sys-utils/unshare.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/sys-utils/unshare.c b/sys-utils/unshare.c index b11919d96..13ee1e411 100644 --- a/sys-utils/unshare.c +++ b/sys-utils/unshare.c @@ -54,18 +54,21 @@ static void usage(int status) { FILE *out = status == EXIT_SUCCESS ? stdout : stderr; - fputs(_("\nUsage:\n"), out); + fputs(USAGE_HEADER, out); fprintf(out, _(" %s [options] <program> [args...]\n"), program_invocation_short_name); - fputs(_("\nOptions:\n"), out); - fputs(_(" -h, --help usage information (this)\n" - " -m, --mount unshare mounts namespace\n" + fputs(USAGE_OPTIONS, out); + fputs(_(" -m, --mount unshare mounts namespace\n" " -u, --uts unshare UTS namespace (hostname etc)\n" " -i, --ipc unshare System V IPC namespace\n" " -n, --net unshare network namespace\n"), out); - fputs(_("\nFor more information see unshare(1).\n"), out); + fputs(USAGE_SEPARATOR, out); + fputs(USAGE_HELP, out); + fputs(USAGE_VERSION, out); + fprintf(out, USAGE_MAN_TAIL("unshare(1)")); + exit(status); } @@ -73,6 +76,7 @@ int main(int argc, char *argv[]) { static const struct option longopts[] = { { "help", no_argument, 0, 'h' }, + { "version", no_argument, 0, 'V'}, { "mount", no_argument, 0, 'm' }, { "uts", no_argument, 0, 'u' }, { "ipc", no_argument, 0, 'i' }, @@ -88,10 +92,13 @@ int main(int argc, char *argv[]) bindtextdomain(PACKAGE, LOCALEDIR); textdomain(PACKAGE); - while((c = getopt_long(argc, argv, "hmuin", longopts, NULL)) != -1) { + while((c = getopt_long(argc, argv, "hVmuin", longopts, NULL)) != -1) { switch(c) { case 'h': usage(EXIT_SUCCESS); + case 'V': + printf(UTIL_LINUX_VERSION); + return EXIT_SUCCESS; case 'm': unshare_flags |= CLONE_NEWNS; break; |