io/pwd.c

   1 /* Copyright (C) 1991, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library 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 GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <mcheck.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23
  24 int
  25 main (void)
  26 {
  27   char *dir;
  28
  29   /* Let this program be used for debugging.  */
  30   mtrace ();
  31
  32   dir = getcwd ((char *) NULL, 0);
  33
  34   if (dir == NULL)
  35     perror ("getcwd");
  36   else
  37     {
  38       puts (dir);
  39       free (dir);
  40     }
  41
  42   exit (dir == NULL ? EXIT_FAILURE : EXIT_SUCCESS);
  43 }