Update copyright notices with scripts/update-copyrights

[thirdparty/glibc.git] / sysdeps / mach / hurd / chroot.c

diff --git a/sysdeps/mach/hurd/chroot.c b/sysdeps/mach/hurd/chroot.c
index 918a36363a69e9eee0674ed973f9befac1d9aa97..08bb701d7ebd62c16b7e9c6013e9f426639500d6 100644 (file)
--- a/sysdeps/mach/hurd/chroot.c
+++ b/sysdeps/mach/hurd/chroot.c
@@ -1,20 +1,19 @@
-/* Copyright (C) 1991,92,93,94,95,97,99,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2014 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 <string.h>
 #include <unistd.h>
@@ -36,11 +35,14 @@ chroot (const char *path)
   /* 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 (path);
-  if (path[len - 2] == '/' && path[len - 1] == '.')
+  if (len >= 2 && path[len - 2] == '/' && path[len - 1] == '.')
     lookup = path;
+  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, path, len);
       n[len] = '/';
       n[len + 1] = '.';