/* Determine whether we can write any file.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2009-2013 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
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. */
#include <config.h>
#include "write-any-file.h"
+#include "priv-set.h"
+#include "root-uid.h"
-#if HAVE_PRIV_H
-# include <priv.h>
-#endif
#include <unistd.h>
/* Return true if we know that we can write any file, including
if (! initialized)
{
bool can = false;
-#if defined PRIV_EFFECTIVE && defined PRIV_FILE_DAC_WRITE
- priv_set_t *pset = priv_allocset ();
- if (pset)
- {
- can =
- (getppriv (PRIV_EFFECTIVE, pset) == 0
- && priv_ismember (pset, PRIV_FILE_DAC_WRITE));
- priv_freeset (pset);
- }
+#if defined PRIV_FILE_DAC_WRITE
+ can = (priv_set_ismember (PRIV_FILE_DAC_WRITE) == 1);
#else
/* In traditional Unix, only root can unlink directories. */
- can = (geteuid () == 0);
+ can = (geteuid () == ROOT_UID);
#endif
can_write = can;
initialized = true;