diff options
Diffstat (limited to 'sysdeps/mach/hurd/setresuid.c')
| -rw-r--r-- | sysdeps/mach/hurd/setresuid.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/sysdeps/mach/hurd/setresuid.c b/sysdeps/mach/hurd/setresuid.c deleted file mode 100644 index 39f64d44e0..0000000000 --- a/sysdeps/mach/hurd/setresuid.c +++ /dev/null @@ -1,124 +0,0 @@ -/* setresuid -- set real user ID, effective user ID, and saved-set user ID - Copyright (C) 2002-2017 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> - -/* Set the real user ID, effective user ID, and saved-set user ID, - of the calling process to RUID, EUID, and SUID, respectively. */ -int -__setresuid (uid_t ruid, uid_t euid, uid_t suid) -{ - auth_t newauth; - error_t err; - - HURD_CRITICAL_BEGIN; - __mutex_lock (&_hurd_id.lock); - err = _hurd_check_ids (); - - if (!err) - { - /* Make a new auth handle which has EUID as the first element in the - list of effective uids. */ - - uid_t *newgen, *newaux; - uid_t auxs[2] = { ruid, suid }; - size_t ngen, naux; - - newgen = _hurd_id.gen.uids; - ngen = _hurd_id.gen.nuids; - if (euid != -1) - { - if (_hurd_id.gen.nuids == 0) - { - /* No effective uids now. The new set will be just UID. */ - newgen = &euid; - ngen = 1; - } - else - { - _hurd_id.gen.uids[0] = euid; - _hurd_id.valid = 0; - } - } - - newaux = _hurd_id.aux.uids; - naux = _hurd_id.aux.nuids; - if (ruid != -1) - { - if (_hurd_id.aux.nuids == 0) - { - newaux = &ruid; - naux = 1; - } - else - { - _hurd_id.aux.uids[0] = ruid; - _hurd_id.valid = 0; - } - } - - if (suid != -1) - { - if (ruid == -1) - { - if (_hurd_id.aux.nuids >= 1) - auxs[0] = _hurd_id.aux.uids[0]; - else if (_hurd_id.gen.nuids >= 1) - auxs[0] = _hurd_id.gen.uids[0]; - else - /* Not even an effective UID. - Fall back to the only UID we have. */ - auxs[0] = suid; - } - if (_hurd_id.aux.nuids <= 1) - { - /* No saved uids now. The new set will be just UID. */ - newaux = auxs; - naux = 2; - } - else - { - _hurd_id.aux.uids[1] = suid; - _hurd_id.valid = 0; - } - } - - err = __USEPORT (AUTH, __auth_makeauth - (port, NULL, MACH_MSG_TYPE_COPY_SEND, 0, - newgen, ngen, newaux, naux, - _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 handle and reauthenticate everything. */ - err = __setauth (newauth); - __mach_port_deallocate (__mach_task_self (), newauth); - return err; -} -libc_hidden_def (__setresuid) -weak_alias (__setresuid, setresuid) |