src/pwd.c

   1 /* pwd - print current directory
   2    Copyright (C) 1994-1997, 1999-2004 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 Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 "error.h"
  27 #include "xgetcwd.h"
  28
  29 /* The official name of this program (e.g., no `g' prefix).  */
  30 #define PROGRAM_NAME "pwd"
  31
  32 #define AUTHORS "Jim Meyering"
  33
  34 /* The name this program was run with. */
  35 char *program_name;
  36
  37 void
  38 usage (int status)
  39 {
  40   if (status != EXIT_SUCCESS)
  41     fprintf (stderr, _("Try `%s --help' for more information.\n"),
  42              program_name);
  43   else
  44     {
  45       printf (_("Usage: %s [OPTION]\n"), program_name);
  46       fputs (_("\
  47 Print the full filename of the current working directory.\n\
  48 \n\
  49 "), stdout);
  50       fputs (HELP_OPTION_DESCRIPTION, stdout);
  51       fputs (VERSION_OPTION_DESCRIPTION, stdout);
  52       printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
  53     }
  54   exit (status);
  55 }
  56
  57 int
  58 main (int argc, char **argv)
  59 {
  60   char *wd;
  61
  62   initialize_main (&argc, &argv);
  63   program_name = argv[0];
  64   setlocale (LC_ALL, "");
  65   bindtextdomain (PACKAGE, LOCALEDIR);
  66   textdomain (PACKAGE);
  67
  68   atexit (close_stdout);
  69
  70   parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
  71                       usage, AUTHORS, (char const *) NULL);
  72
  73   if (1 < argc)
  74     error (0, 0, _("ignoring non-option arguments"));
  75
  76   wd = xgetcwd ();
  77   if (wd == NULL)
  78     error (EXIT_FAILURE, errno, _("cannot get current directory"));
  79   printf ("%s\n", wd);
  80
  81   exit (EXIT_SUCCESS);
  82 }