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Diffstat (limited to 'gnu/unlinkdir.c')
-rw-r--r-- | gnu/unlinkdir.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/gnu/unlinkdir.c b/gnu/unlinkdir.c new file mode 100644 index 00000000..06336eba --- /dev/null +++ b/gnu/unlinkdir.c @@ -0,0 +1,56 @@ +/* -*- buffer-read-only: t -*- vi: set ro: */ +/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ +/* unlinkdir.c - determine whether we can unlink directories + + Copyright (C) 2005-2006, 2009-2012 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 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 + 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, see <http://www.gnu.org/licenses/>. */ + +/* Written by Paul Eggert, Jim Meyering, and David Bartley. */ + +#include <config.h> + +#include "unlinkdir.h" +#include "priv-set.h" +#include <unistd.h> + +#if ! UNLINK_CANNOT_UNLINK_DIR + +/* Return true if we cannot unlink directories, false if we might be + able to unlink directories. */ + +bool +cannot_unlink_dir (void) +{ + static bool initialized; + static bool cannot; + + if (! initialized) + { +# if 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. */ + cannot = (priv_set_ismember (PRIV_SYS_LINKDIR) == 0); +# else + /* In traditional Unix, only root can unlink directories. */ + cannot = (geteuid () != 0); +# endif + initialized = true; + } + + return cannot; +} + +#endif |