68 lines
1.4 KiB
C
68 lines
1.4 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 "c.h"
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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, _(" %1$s [options] LABEL=<label>\n"
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" %1$s [options] UUID=<uuid>\n"),
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program_invocation_short_name);
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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, *tk, *vl;
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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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(2);
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if (!strncmp(argv[1], "LABEL=", 6)) {
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tk = "LABEL";
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vl = argv[1] + 6;
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} else if (!strncmp(argv[1], "UUID=", 5)) {
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tk = "UUID";
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vl = argv[1] + 5;
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} else 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 EXIT_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(EXIT_SUCCESS);
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} else
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usage(2);
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dev = blkid_evaluate_tag(tk, vl, NULL);
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if (!dev)
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errx(EXIT_FAILURE, _("unable to resolve '%s'"), argv[1]);
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puts(dev);
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exit(EXIT_SUCCESS);
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}
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