blob: d23248274064436d25419b99520a342a499fe417 (
plain)
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
46
47
48
49
50
51
52
53
54
55
56
|
/* Copyright (C) 1993-2018 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 <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/id.h>
/* Get the effective group ID of the calling process. */
gid_t
__getegid (void)
{
error_t err;
gid_t egid;
HURD_CRITICAL_BEGIN;
__mutex_lock (&_hurd_id.lock);
if (err = _hurd_check_ids ())
{
errno = err;
egid = -1;
}
else if (_hurd_id.gen.ngids >= 1)
egid = _hurd_id.gen.gids[0];
else if (_hurd_id.aux.ngids >= 1)
/* We have no effective gids. Return the real gid. */
egid = _hurd_id.aux.gids[0];
else
{
/* We do not even have a real gid. */
errno = EGRATUITOUS;
egid = -1;
}
__mutex_unlock (&_hurd_id.lock);
HURD_CRITICAL_END;
return egid;
}
weak_alias (__getegid, getegid)
|
