global: convert indentation-TABs to spaces
[coreutils.git] / src / sync.c
blob593071347b8af346a098ba485f0b1569e699c0ae
1 /* sync - update the super block
2 Copyright (C) 1994-2004, 2008-2009 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Jim Meyering */
19 #include <config.h>
20 #include <getopt.h>
21 #include <stdio.h>
22 #include <sys/types.h>
24 #include "system.h"
25 #include "error.h"
26 #include "long-options.h"
28 /* The official name of this program (e.g., no `g' prefix). */
29 #define PROGRAM_NAME "sync"
31 #define AUTHORS proper_name ("Jim Meyering")
33 void
34 usage (int status)
36 if (status != EXIT_SUCCESS)
37 fprintf (stderr, _("Try `%s --help' for more information.\n"),
38 program_name);
39 else
41 printf (_("Usage: %s [OPTION]\n"), program_name);
42 fputs (_("\
43 Force changed blocks to disk, update the super block.\n\
44 \n\
45 "), stdout);
46 fputs (HELP_OPTION_DESCRIPTION, stdout);
47 fputs (VERSION_OPTION_DESCRIPTION, stdout);
48 emit_bug_reporting_address ();
50 exit (status);
53 int
54 main (int argc, char **argv)
56 initialize_main (&argc, &argv);
57 set_program_name (argv[0]);
58 setlocale (LC_ALL, "");
59 bindtextdomain (PACKAGE, LOCALEDIR);
60 textdomain (PACKAGE);
62 atexit (close_stdout);
64 parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE, Version,
65 usage, AUTHORS, (char const *) NULL);
66 if (getopt_long (argc, argv, "", NULL, NULL) != -1)
67 usage (EXIT_FAILURE);
69 if (optind < argc)
70 error (0, 0, _("ignoring all arguments"));
72 sync ();
73 exit (EXIT_SUCCESS);