diff options
Diffstat (limited to 'lib/unlinkdir.c')
-rw-r--r-- | lib/unlinkdir.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/lib/unlinkdir.c b/lib/unlinkdir.c deleted file mode 100644 index d3584bebf..000000000 --- a/lib/unlinkdir.c +++ /dev/null @@ -1,70 +0,0 @@ -/* unlinkdir.c - determine (and maybe change) whether we can unlink directories - - Copyright (C) 2005 Free Software Foundation, Inc. - - 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. - - This program 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 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. */ - -/* Written by Paul Eggert and Jim Meyering. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include "unlinkdir.h" - -#if HAVE_PRIV_H -# include <priv.h> -#endif -#include <unistd.h> - -#if ! UNLINK_CANNOT_UNLINK_DIR - -/* 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. */ - -bool -cannot_unlink_dir (void) -{ - static bool initialized; - static bool cannot; - - if (! initialized) - { -# if defined PRIV_EFFECTIVE && defined PRIV_SYS_LINKDIR - /* We might be able to unlink directories if we cannot - determine our privileges, or if we have the - PRIV_SYS_LINKDIR privilege and cannot delete it. */ - priv_set_t *pset = priv_allocset (); - if (pset) - { - cannot = - (getppriv (PRIV_EFFECTIVE, pset) == 0 - && (! priv_ismember (pset, PRIV_SYS_LINKDIR) - || (priv_delset (pset, PRIV_SYS_LINKDIR) == 0 - && setppriv (PRIV_SET, PRIV_EFFECTIVE, pset) == 0))); - priv_freeset (pset); - } -# else - /* In traditional Unix, only root can unlink directories. */ - cannot = (geteuid () != 0); -# endif - initialized = true; - } - - return cannot; -} - -#endif |