| /* |
| * 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 <getopt.h> |
| |
| #include <blkid.h> |
| |
| #include "nls.h" |
| #include "closestream.h" |
| #include "c.h" |
| |
| /* Exit codes used by findfs. */ |
| #define FINDFS_SUCCESS 0 /* no errors */ |
| #define FINDFS_NOT_FOUND 1 /* label or uuid cannot be found */ |
| #define FINDFS_USAGE_ERROR 2 /* user did something unexpected */ |
| |
| static void __attribute__((__noreturn__)) usage(void) |
| { |
| FILE *out = stdout; |
| fputs(USAGE_HEADER, out); |
| fprintf(out, _(" %s [options] {LABEL,UUID,PARTUUID,PARTLABEL}=<value>\n"), |
| program_invocation_short_name); |
| |
| fputs(USAGE_SEPARATOR, out); |
| fputs(_("Find a filesystem by label or UUID.\n"), out); |
| |
| fputs(USAGE_OPTIONS, out); |
| printf(USAGE_HELP_OPTIONS(16)); |
| printf(USAGE_MAN_TAIL("findfs(8)")); |
| exit(FINDFS_SUCCESS); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| char *dev; |
| int c; |
| static const struct option longopts[] = { |
| {"version", no_argument, NULL, 'V'}, |
| {"help", no_argument, NULL, 'h'}, |
| {NULL, 0, NULL, 0} |
| }; |
| |
| setlocale(LC_ALL, ""); |
| bindtextdomain(PACKAGE, LOCALEDIR); |
| textdomain(PACKAGE); |
| atexit(close_stdout); |
| |
| if (argc != 2) { |
| /* we return '2' for backward compatibility |
| * with version from e2fsprogs */ |
| warnx(_("bad usage")); |
| errtryhelp(FINDFS_USAGE_ERROR); |
| } |
| |
| while ((c = getopt_long(argc, argv, "Vh", longopts, NULL)) != -1) |
| switch (c) { |
| case 'V': |
| printf(UTIL_LINUX_VERSION); |
| return FINDFS_SUCCESS; |
| case 'h': |
| usage(); |
| default: |
| errtryhelp(FINDFS_USAGE_ERROR); |
| } |
| |
| dev = blkid_evaluate_tag(argv[1], NULL, NULL); |
| if (!dev) |
| errx(FINDFS_NOT_FOUND, _("unable to resolve '%s'"), argv[1]); |
| |
| puts(dev); |
| return FINDFS_SUCCESS; |
| } |
| |