1 | /* getsid -- Return session ID of a process. Hurd version. |
2 | Copyright (C) 1995-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <sys/types.h> |
20 | #include <unistd.h> |
21 | #include <errno.h> |
22 | #include <hurd.h> |
23 | |
24 | pid_t |
25 | getsid (pid_t pid) |
26 | { |
27 | error_t err; |
28 | pid_t sid; |
29 | |
30 | if (pid == 0) |
31 | pid = _hurd_pid; |
32 | |
33 | err = __USEPORT (PROC, __proc_getsid (port, pid, &sid)); |
34 | if (err) |
35 | return (pid_t) __hurd_fail (err); |
36 | return sid; |
37 | } |
38 | libc_hidden_def (getsid) |
39 | |