/* Change a port cell to a directory by looking up a name.
- Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1999-2016 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 Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
- Library General Public License for more details.
+ Lesser 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. */
+ 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 <unistd.h>
/* Append trailing "/." to directory name to force ENOTDIR if it's not a
directory and EACCES if we don't have search permission. */
len = strlen (name);
- if (name[len - 2] == '/' && name[len - 1] == '.')
+ if (len >= 2 && name[len - 2] == '/' && name[len - 1] == '.')
lookup = name;
+ else if (len == 0)
+ /* Special-case empty file name according to POSIX. */
+ return __hurd_fail (ENOENT);
else
{
- char *n = alloca (len + 2);
+ char *n = alloca (len + 3);
memcpy (n, name, len);
n[len] = '/';
n[len + 1] = '.';