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/* Obsolete function to get current working directory.
Copyright (C) 1991-2017 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.")
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