/* Obsolete function to get current working directory.

   Copyright (C) 1991-2018 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 <errno.h>

#include <limits.h>

#include <string.h>

#include <unistd.h>

char *

getwd (char *buf)

{

#ifndef PATH_MAX

#define PATH_MAX 1024

#endif

  char tmpbuf[PATH_MAX];

  if (buf == NULL)

    {

      __set_errno (EINVAL);

      return NULL;

    }

  if (__getcwd (tmpbuf, PATH_MAX) == NULL)

    {

      /* We use 1024 here since it should really be enough and because

	 this is a safe value.  */

      __strerror_r (errno, buf, 1024);

      return NULL;

    }

  /* This is completely unsafe.  Nobody can say how big the user

     provided buffer is.  Perhaps the application and the libc

     disagree about the value of PATH_MAX.  */

  return strcpy (buf, tmpbuf);

}

link_warning (getwd,

	      "the `getwd' function is dangerous and should not be used.")