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git.ipfire.org Git - thirdparty/glibc.git/blob - hurd/hurdid.c
1 /* Copyright (C) 1993-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
21 struct hurd_id_data _hurd_id
;
24 /* Check that _hurd_id.{gen,aux} are valid and update them if not.
25 Expects _hurd_id.lock to be held and does not release it. */
28 _hurd_check_ids (void)
32 inline void dealloc (__typeof (_hurd_id
.gen
) *p
)
36 __vm_deallocate (__mach_task_self (),
37 (vm_address_t
) p
->uids
,
38 p
->nuids
* sizeof (uid_t
));
44 __vm_deallocate (__mach_task_self (),
45 (vm_address_t
) p
->gids
,
46 p
->ngids
* sizeof (gid_t
));
54 dealloc (&_hurd_id
.gen
);
55 dealloc (&_hurd_id
.aux
);
57 if (_hurd_id
.rid_auth
!= MACH_PORT_NULL
)
59 __mach_port_deallocate (__mach_task_self (), _hurd_id
.rid_auth
);
60 _hurd_id
.rid_auth
= MACH_PORT_NULL
;
63 if (err
= __USEPORT (AUTH
, __auth_getids
65 &_hurd_id
.gen
.uids
, &_hurd_id
.gen
.nuids
,
66 &_hurd_id
.aux
.uids
, &_hurd_id
.aux
.nuids
,
67 &_hurd_id
.gen
.gids
, &_hurd_id
.gen
.ngids
,
68 &_hurd_id
.aux
.gids
, &_hurd_id
.aux
.ngids
)))
80 __mutex_init (&_hurd_id
.lock
);
82 _hurd_id
.rid_auth
= MACH_PORT_NULL
;
83 _hurd_id
.gen
.uids
= _hurd_id
.aux
.uids
= NULL
;
84 _hurd_id
.gen
.nuids
= _hurd_id
.aux
.nuids
= 0;
85 _hurd_id
.gen
.gids
= _hurd_id
.aux
.gids
= NULL
;
86 _hurd_id
.gen
.ngids
= _hurd_id
.aux
.ngids
= 0;
88 (void) &init_id
; /* Avoid "defined but not used" warning. */
90 text_set_element (_hurd_preinit_hook
, init_id
);