diff options
Diffstat (limited to 'misc-utils/findfs.c')
-rw-r--r-- | misc-utils/findfs.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/misc-utils/findfs.c b/misc-utils/findfs.c new file mode 100644 index 0000000..0997e1b --- /dev/null +++ b/misc-utils/findfs.c @@ -0,0 +1,79 @@ +/* + * 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); + close_stdout_atexit(); + + 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': + print_version(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; +} + |