1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/* Drop all authentication credentials.
Copyright (C) 2013 Free Software Foundation, Inc.
Written by Justus Winter <4winter@informatik.uni-hamburg.de>
This file is part of the GNU Hurd.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <hurd.h>
/* Obtain an empty authentication handle and use it for further
authentication purposes. This effectively drops all Unix
privileges. */
error_t
setnullauth (void)
{
error_t err;
auth_t nullauth;
err = auth_makeauth (getauth (),
NULL, MACH_MSG_TYPE_COPY_SEND, 0,
NULL, 0,
NULL, 0,
NULL, 0,
NULL, 0,
&nullauth);
if (err)
return err;
err = setauth (nullauth);
return err;
}
|
