/* Obsolete function to get current working directory.   Copyright (C) 1991, 1992, 1996, 1997, 1998 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 Library General Public License as   published by the Free Software Foundation; either version 2 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   Library General Public License for more details.   You should have received a copy of the GNU Library General Public   License along with the GNU C Library; see the file COPYING.LIB.  If not,   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,   Boston, MA 02111-1307, USA.  */#include <errno.h>#include <limits.h>#include <string.h>#include <unistd.h>char *getwd (buf)     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.")