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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/mach/hurd/getgid.c
1 /* Copyright (C) 1993-2023 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 Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the 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 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
23 /* Get the real group ID of the calling process. */
32 __mutex_lock (&_hurd_id
.lock
);
34 if (err
= _hurd_check_ids ())
39 else if (_hurd_id
.aux
.ngids
>= 1)
40 gid
= _hurd_id
.aux
.gids
[0];
43 /* We do not even have a real gid. */
48 __mutex_unlock (&_hurd_id
.lock
);
50 if (gid
== -1 && errno
== EINTR
)
51 /* Got a signal while inside an RPC of the critical section, retry again */
57 weak_alias (__getgid
, getgid
)