src/sync.c

   1 /* sync - update the super block
   2    Copyright (C) 1994, 1995 Free Software Foundation, Inc.
   3
   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 2, or (at your option)
   7    any later version.
   8
   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.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  17
  18 /* Jim Meyering <meyering@comco.com> */
  19
  20 #include <config.h>
  21 #include <stdio.h>
  22 #include <sys/types.h>
  23
  24 #include "system.h"
  25 #include "long-options.h"
  26 #include "version.h"
  27 #include "error.h"
  28
  29 /* The name this program was run with. */
  30 char *program_name;
  31
  32 static void
  33 usage (int status)
  34 {
  35   if (status != 0)
  36     fprintf (stderr, _("Try `%s --help' for more information.\n"),
  37              program_name);
  38   else
  39     {
  40       printf (_("Usage: %s [OPTION]\n"), program_name);
  41       printf (_("\
  42 Force changed blocks to disk, update the super block.\n\
  43 \n\
  44   --help      display this help and exit\n\
  45   --version   output version information and exit\n\
  46 "));
  47     }
  48   exit (status);
  49 }
  50
  51 void
  52 main (int argc, char **argv)
  53 {
  54   program_name = argv[0];
  55
  56   parse_long_options (argc, argv, "sync", version_string, usage);
  57
  58   if (argc != 1)
  59     error (0, 0, _("ignoring all arguments"));
  60
  61   sync ();
  62   exit (0);
  63 }