1 | /* Copyright (C) 1998-2017 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
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. |
8 | |
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. |
13 | |
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 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <errno.h> |
19 | #include <unistd.h> |
20 | #include <setxid.h> |
21 | |
22 | |
23 | int |
24 | setegid (gid_t gid) |
25 | { |
26 | int result; |
27 | |
28 | if (gid == (gid_t) ~0) |
29 | { |
30 | __set_errno (EINVAL); |
31 | return -1; |
32 | } |
33 | |
34 | #ifdef __NR_setresgid32 |
35 | result = INLINE_SETXID_SYSCALL (setresgid32, 3, -1, gid, -1); |
36 | #else |
37 | result = INLINE_SETXID_SYSCALL (setresgid, 3, -1, gid, -1); |
38 | #endif |
39 | |
40 | return result; |
41 | } |
42 | #ifndef setegid |
43 | libc_hidden_def (setegid) |
44 | #endif |
45 | |