1 /* unlinkdir.c - determine whether we can unlink directories
3 Copyright (C) 2005-2006, 2009-2011 Free Software Foundation, Inc.
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 /* Written by Paul Eggert, Jim Meyering, and David Bartley. */
22 #include "unlinkdir.h"
26 #if ! UNLINK_CANNOT_UNLINK_DIR
28 /* Return true if we cannot unlink directories, false if we might be
29 able to unlink directories. */
32 cannot_unlink_dir (void)
34 static bool initialized;
39 # if defined PRIV_SYS_LINKDIR
40 /* We might be able to unlink directories if we cannot
41 determine our privileges, or if we have the
42 PRIV_SYS_LINKDIR privilege. */
43 cannot = (priv_set_ismember (PRIV_SYS_LINKDIR) == 0);
45 /* In traditional Unix, only root can unlink directories. */
46 cannot = (geteuid () != 0);