| /* `group_member' -- test if process is in a given group. Hurd version. |
| Copyright (C) 1993-2014 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> |
| |
| int |
| __group_member (gid) |
| gid_t gid; |
| { |
| int member = 0; |
| error_t err; |
| void *crit; |
| |
| crit = _hurd_critical_section_lock (); |
| __mutex_lock (&_hurd_id.lock); |
| |
| err = _hurd_check_ids (); |
| if (! err) |
| { |
| size_t i; |
| for (i = 0; i < _hurd_id.gen.ngids; ++i) |
| if (_hurd_id.gen.gids[i] == gid) |
| { |
| member = 1; |
| break; |
| } |
| } |
| |
| __mutex_unlock (&_hurd_id.lock); |
| _hurd_critical_section_unlock (crit); |
| |
| if (err) |
| __hurd_fail (err); |
| return member; |
| } |
| |
| weak_alias (__group_member, group_member) |