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/*
* Copyright (C) 2009 Karel Zak <kzak@redhat.com>
*
* This file may be redistributed under the terms of the GNU Public
* License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <blkid.h>
#include "nls.h"
#include "closestream.h"
#include "c.h"
static void __attribute__((__noreturn__)) usage(int rc)
{
FILE *out = rc ? stderr : stdout;
fputs(USAGE_HEADER, out);
fprintf(out, _(" %1$s [options] LABEL=<label>\n"
" %1$s [options] UUID=<uuid>\n"),
program_invocation_short_name);
fputs(USAGE_OPTIONS, out);
fputs(USAGE_HELP, out);
fputs(USAGE_VERSION, out);
fprintf(out, USAGE_MAN_TAIL("findfs(8)"));
exit(rc);
}
int main(int argc, char **argv)
{
char *dev, *tk, *vl;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
atexit(close_stdout);
if (argc != 2)
/* we return '2' for backward compatibility
* with version from e2fsprogs */
usage(2);
if (!strncmp(argv[1], "LABEL=", 6)) {
tk = "LABEL";
vl = argv[1] + 6;
} else if (!strncmp(argv[1], "UUID=", 5)) {
tk = "UUID";
vl = argv[1] + 5;
} else if (strcmp(argv[1], "-V") == 0 ||
strcmp(argv[1], "--version") == 0) {
printf(UTIL_LINUX_VERSION);
return EXIT_SUCCESS;
} else if (strcmp(argv[1], "-h") == 0 ||
strcmp(argv[1], "--help") == 0) {
usage(EXIT_SUCCESS);
} else
usage(2);
dev = blkid_evaluate_tag(tk, vl, NULL);
if (!dev)
errx(EXIT_FAILURE, _("unable to resolve '%s'"), argv[1]);
puts(dev);
exit(EXIT_SUCCESS);
}
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