diff options
Diffstat (limited to 'REORG.TODO/hurd/hurdid.c')
-rw-r--r-- | REORG.TODO/hurd/hurdid.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/REORG.TODO/hurd/hurdid.c b/REORG.TODO/hurd/hurdid.c new file mode 100644 index 0000000000..66d760beef --- /dev/null +++ b/REORG.TODO/hurd/hurdid.c @@ -0,0 +1,90 @@ +/* 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 <hurd.h> +#include <hurd/id.h> + +struct hurd_id_data _hurd_id; + + +/* Check that _hurd_id.{gen,aux} are valid and update them if not. + Expects _hurd_id.lock to be held and does not release it. */ + +error_t +_hurd_check_ids (void) +{ + if (! _hurd_id.valid) + { + inline void dealloc (__typeof (_hurd_id.gen) *p) + { + if (p->uids) + { + __vm_deallocate (__mach_task_self (), + (vm_address_t) p->uids, + p->nuids * sizeof (uid_t)); + p->uids = NULL; + } + p->nuids = 0; + if (p->gids) + { + __vm_deallocate (__mach_task_self (), + (vm_address_t) p->gids, + p->ngids * sizeof (gid_t)); + p->gids = NULL; + } + p->ngids = 0; + } + + error_t err; + + dealloc (&_hurd_id.gen); + dealloc (&_hurd_id.aux); + + if (_hurd_id.rid_auth != MACH_PORT_NULL) + { + __mach_port_deallocate (__mach_task_self (), _hurd_id.rid_auth); + _hurd_id.rid_auth = MACH_PORT_NULL; + } + + if (err = __USEPORT (AUTH, __auth_getids + (port, + &_hurd_id.gen.uids, &_hurd_id.gen.nuids, + &_hurd_id.aux.uids, &_hurd_id.aux.nuids, + &_hurd_id.gen.gids, &_hurd_id.gen.ngids, + &_hurd_id.aux.gids, &_hurd_id.aux.ngids))) + return err; + + _hurd_id.valid = 1; + } + + return 0; +} + +static void +init_id (void) +{ + __mutex_init (&_hurd_id.lock); + _hurd_id.valid = 0; + _hurd_id.rid_auth = MACH_PORT_NULL; + _hurd_id.gen.uids = _hurd_id.aux.uids = NULL; + _hurd_id.gen.nuids = _hurd_id.aux.nuids = 0; + _hurd_id.gen.gids = _hurd_id.aux.gids = NULL; + _hurd_id.gen.ngids = _hurd_id.aux.ngids = 0; + + (void) &init_id; /* Avoid "defined but not used" warning. */ +} +text_set_element (_hurd_preinit_hook, init_id); |