ap/libc/glibc/glibc-2.23/io/pwd.c

/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <mcheck.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int
main (void)
{
  char *dir;

  /* Let this program be used for debugging.  */
  mtrace ();

  dir = getcwd ((char *) NULL, 0);

  if (dir == NULL)
    perror ("getcwd");
  else
    {
      puts (dir);
      free (dir);
    }

  return (dir == NULL ? EXIT_FAILURE : EXIT_SUCCESS);
}