1 /* Copyright (C) 1991, 92, 93, 94, 95, 97 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 Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 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 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
20 #include <hurd/msg_server.h>
25 _hurd_refport_secure_p (mach_port_t ref)
27 if (ref == __mach_task_self ())
29 if (__USEPORT (AUTH, ref == port))
35 _S_msg_add_auth (mach_port_t me,
41 if (err = __USEPORT (AUTH,
42 __auth_makeauth (port,
43 &addauth, 1, MACH_MSG_TYPE_MOVE_SEND,
51 err = __setauth (newauth);
52 __mach_port_deallocate (__mach_task_self (), newauth);
60 _S_msg_del_auth (mach_port_t me,
62 intarray_t uids, mach_msg_type_number_t nuids,
63 intarray_t gids, mach_msg_type_number_t ngids)
68 if (!_hurd_refport_secure_p (task))
72 __mutex_lock (&_hurd_id.lock);
73 err = _hurd_check_ids ();
78 size_t nu = _hurd_id.gen.nuids, ng = _hurd_id.gen.ngids;
82 memcpy (newu, _hurd_id.gen.uids, nu * sizeof (uid_t));
83 memcpy (newg, _hurd_id.gen.gids, ng * sizeof (gid_t));
85 for (j = 0; j < nuids; ++j)
87 const uid_t uid = uids[j];
88 for (i = 0; i < nu; ++i)
90 /* Move the last uid into this slot, and decrease the
91 number of uids so the last slot is no longer used. */
94 __vm_deallocate (__mach_task_self (),
95 (vm_address_t) uids, nuids * sizeof (uid_t));
97 for (j = 0; j < ngids; ++j)
99 const gid_t gid = gids[j];
100 for (i = 0; i < nu; ++i)
102 /* Move the last gid into this slot, and decrease the
103 number of gids so the last slot is no longer used. */
104 newu[i] = newu[--nu];
106 __vm_deallocate (__mach_task_self (),
107 (vm_address_t) gids, ngids * sizeof (gid_t));
109 err = __USEPORT (AUTH, __auth_makeauth
111 NULL, 0, MACH_MSG_TYPE_COPY_SEND,
113 _hurd_id.aux.uids, _hurd_id.aux.nuids,
115 _hurd_id.aux.uids, _hurd_id.aux.ngids,
118 __mutex_unlock (&_hurd_id.lock);
124 err = __setauth (newauth);
125 __mach_port_deallocate (__mach_task_self (), newauth);