glibc/debug/getwd_chk.c

35 lines
1.1 KiB
C

/* Copyright (C) 2005 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <unistd.h>
#include <sys/param.h>
char *
__getwd_chk (char *buf, size_t buflen)
{
char *res = __getcwd (buf, buflen);
if (res == NULL && errno == ERANGE)
__chk_fail ();
return res;
}
link_warning (getwd,
"the `getwd' function is dangerous and should not be used.")