diff options
Diffstat (limited to 'sysdeps/mach/hurd/getgroups.c')
-rw-r--r-- | sysdeps/mach/hurd/getgroups.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/sysdeps/mach/hurd/getgroups.c b/sysdeps/mach/hurd/getgroups.c deleted file mode 100644 index 5141796101..0000000000 --- a/sysdeps/mach/hurd/getgroups.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Copyright (C) 1993-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <unistd.h> -#include <hurd.h> -#include <hurd/id.h> -#include <string.h> - -int -__getgroups (int n, gid_t *gidset) -{ - error_t err; - int ngids; - void *crit; - - if (n < 0) - return __hurd_fail (EINVAL); - - crit = _hurd_critical_section_lock (); - __mutex_lock (&_hurd_id.lock); - - if (err = _hurd_check_ids ()) - { - __mutex_unlock (&_hurd_id.lock); - _hurd_critical_section_unlock (crit); - return __hurd_fail (err); - } - - ngids = _hurd_id.gen.ngids; - - if (n != 0) - { - /* Copy the gids onto stack storage and then release the idlock. */ - gid_t gids[ngids]; - memcpy (gids, _hurd_id.gen.gids, sizeof (gids)); - __mutex_unlock (&_hurd_id.lock); - _hurd_critical_section_unlock (crit); - - /* Now that the lock is released, we can safely copy the - group set into the user's array, which might fault. */ - if (ngids > n) - return __hurd_fail (EINVAL); - memcpy (gidset, gids, ngids * sizeof (gid_t)); - } - else - { - __mutex_unlock (&_hurd_id.lock); - _hurd_critical_section_unlock (crit); - } - - return ngids; -} - -weak_alias (__getgroups, getgroups) |