1 /* SPDX-License-Identifier: LGPL-2.1 OR MIT */
2 /*
3 * Resource definitions for NOLIBC
4 * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
5 */
6
7 /* make sure to include all global symbols */
8 #include "../nolibc.h"
9
10 #ifndef _NOLIBC_SYS_RESOURCE_H
11 #define _NOLIBC_SYS_RESOURCE_H
12
13 #include "../sys.h"
14
15 #include <linux/resource.h>
16
17 /*
18 * int getrlimit(int resource, struct rlimit *rlim);
19 * int setrlimit(int resource, const struct rlimit *rlim);
20 */
21
22 static __attribute__((unused))
sys_prlimit64(pid_t pid,int resource,const struct rlimit64 * new_limit,struct rlimit64 * old_limit)23 int sys_prlimit64(pid_t pid, int resource,
24 const struct rlimit64 *new_limit, struct rlimit64 *old_limit)
25 {
26 return my_syscall4(__NR_prlimit64, pid, resource, new_limit, old_limit);
27 }
28
29 static __attribute__((unused))
getrlimit(int resource,struct rlimit * rlim)30 int getrlimit(int resource, struct rlimit *rlim)
31 {
32 struct rlimit64 rlim64;
33 int ret;
34
35 ret = __sysret(sys_prlimit64(0, resource, NULL, &rlim64));
36 rlim->rlim_cur = rlim64.rlim_cur;
37 rlim->rlim_max = rlim64.rlim_max;
38
39 return ret;
40 }
41
42 static __attribute__((unused))
setrlimit(int resource,const struct rlimit * rlim)43 int setrlimit(int resource, const struct rlimit *rlim)
44 {
45 struct rlimit64 rlim64 = {
46 .rlim_cur = rlim->rlim_cur,
47 .rlim_max = rlim->rlim_max,
48 };
49
50 return __sysret(sys_prlimit64(0, resource, &rlim64, NULL));
51 }
52
53 #endif /* _NOLIBC_SYS_RESOURCE_H */
54