73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* Copyright (C) 2009 Karel Zak <kzak@redhat.com>
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*
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* This file may be redistributed under the terms of the GNU Public
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* License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <blkid.h>
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#include "nls.h"
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#include "closestream.h"
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#include "c.h"
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#include "exitcodes.h"
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/* Exit codes used by findfs. */
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#define FINDFS_SUCCESS 0 /* no errors */
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#define FINDFS_NOT_FOUND 1 /* label or uuid cannot be found */
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#define FINDFS_USAGE_ERROR 2 /* user did something unexpected */
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static void __attribute__((__noreturn__)) usage(int rc)
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{
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FILE *out = rc ? stderr : stdout;
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fputs(USAGE_HEADER, out);
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fprintf(out, _(" %s [options] {LABEL,UUID,PARTUUID,PARTLABEL}=<value>\n"),
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program_invocation_short_name);
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fputs(USAGE_SEPARATOR, out);
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fputs(_("Find a filesystem by label or UUID.\n"), out);
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fputs(USAGE_OPTIONS, out);
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fputs(USAGE_HELP, out);
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fputs(USAGE_VERSION, out);
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fprintf(out, USAGE_MAN_TAIL("findfs(8)"));
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exit(rc);
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}
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int main(int argc, char **argv)
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{
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char *dev;
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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atexit(close_stdout);
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if (argc != 2)
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/* we return '2' for backward compatibility
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* with version from e2fsprogs */
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usage(FINDFS_USAGE_ERROR);
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if (strcmp(argv[1], "-V") == 0 ||
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strcmp(argv[1], "--version") == 0) {
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printf(UTIL_LINUX_VERSION);
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return FINDFS_SUCCESS;
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} else if (strcmp(argv[1], "-h") == 0 ||
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strcmp(argv[1], "--help") == 0) {
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usage(FINDFS_SUCCESS);
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} else if (argv[1][0] == '-')
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usage(FINDFS_USAGE_ERROR);
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dev = blkid_evaluate_tag(argv[1], NULL, NULL);
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if (!dev)
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errx(FINDFS_NOT_FOUND, _("unable to resolve '%s'"), argv[1]);
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puts(dev);
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return FINDFS_SUCCESS;
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}
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