| /* 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 <hurd.h> |
| #include <hurd/id.h> |
| |
| /* Set the uid set for the current user to UIDS (N of them). */ |
| int |
| seteuids (int n, const uid_t *uids) |
| { |
| error_t err; |
| auth_t newauth; |
| int i; |
| gid_t new[n]; |
| |
| /* Fault before taking locks. */ |
| for (i = 0; i < n; ++i) |
| new[i] = uids[i]; |
| |
| HURD_CRITICAL_BEGIN; |
| __mutex_lock (&_hurd_id.lock); |
| err = _hurd_check_ids (); |
| if (! err) |
| { |
| /* Get a new auth port using those IDs. */ |
| err = __USEPORT (AUTH, |
| __auth_makeauth (port, NULL, 0, 0, |
| new, n, |
| _hurd_id.aux.uids, _hurd_id.aux.nuids, |
| _hurd_id.gen.gids, _hurd_id.gen.ngids, |
| _hurd_id.aux.gids, _hurd_id.aux.ngids, |
| &newauth)); |
| } |
| __mutex_unlock (&_hurd_id.lock); |
| HURD_CRITICAL_END; |
| |
| if (err) |
| return __hurd_fail (err); |
| |
| /* Install the new auth port and reauthenticate everything. */ |
| err = __setauth (newauth); |
| __mach_port_deallocate (__mach_task_self (), newauth); |
| return err; |
| } |
