X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Funlinkdir.c;h=9c3ff006552996f10dd9a113d8b76cbd65d70c8a;hb=8d2524ce78ca107074727cbd8780c26a203a107c;hp=d3584bebfb2609155882d85c71513764e0b92905;hpb=7c3f8da8f075e3813ced160d5b53a28c6f7dfe78;p=gnulib.git

diff --git a/lib/unlinkdir.c b/lib/unlinkdir.c
index d3584bebf..9c3ff0065 100644
--- a/lib/unlinkdir.c
+++ b/lib/unlinkdir.c
@@ -1,11 +1,11 @@
 /* unlinkdir.c - determine (and maybe change) whether we can unlink directories
 
-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005-2006, 2009 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,14 +13,11 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert and Jim Meyering.  */
 
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
 
 #include "unlinkdir.h"
 
@@ -33,7 +30,11 @@
 
 /* Return true if we cannot unlink directories, false if we might be
    able to unlink directories.  If possible, tell the kernel we don't
-   want to be able to unlink directories, so that we can return true.  */
+   want to be able to unlink directories, so that we can return true.
+
+   Note: this function may modify the process privilege set, to remove
+   the PRIV_SYS_LINKDIR privilege, so is neither thread-safe, nor
+   appropriate for use in a library.  */
 
 bool
 cannot_unlink_dir (void)