/* Copyright (C) 1993, 1994, 1995, 1997 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #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);