1 | /* Copyright (C) 1991-2024 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 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | /* This is generic in the sense that it will work with the BSD, SYSV, |
19 | or stub versions of getrlimit. Separate versions could be written |
20 | for efficiency, but it's probably not worth it. */ |
21 | |
22 | #include <sys/vlimit.h> |
23 | #include <sys/resource.h> |
24 | #include <errno.h> |
25 | |
26 | /* Set the soft limit for RESOURCE to be VALUE. |
27 | Returns 0 for success, -1 for failure. */ |
28 | int |
29 | vlimit (enum __vlimit_resource resource, int value) |
30 | { |
31 | if (resource >= LIM_CPU && resource <= LIM_MAXRSS) |
32 | { |
33 | /* The rlimit codes happen to each be one less |
34 | than the corresponding vlimit codes. */ |
35 | enum __rlimit_resource rlimit_res = |
36 | (enum __rlimit_resource) ((int) resource - 1); |
37 | struct rlimit lims; |
38 | |
39 | if (__getrlimit (rlimit_res, &lims) < 0) |
40 | return -1; |
41 | |
42 | lims.rlim_cur = value; |
43 | return __setrlimit (rlimit_res, &lims); |
44 | } |
45 | |
46 | __set_errno (EINVAL); |
47 | return -1; |
48 | } |
49 | |