1/* Linux setrlimit implementation (32 bits off_t).
2 Copyright (C) 2016-2020 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 <errno.h>
20#include <sys/resource.h>
21#include <sys/types.h>
22#include <shlib-compat.h>
23
24#if !__RLIM_T_MATCHES_RLIM64_T
25
26/* The compatibility symbol is meant to match the old __NR_getrlimit syscall
27 (with broken RLIM_INFINITY definition). It should be provided iff
28 __NR_getrlimit and __NR_ugetrlimit are both defined. */
29# ifndef __NR_ugetrlimit
30# undef SHLIB_COMPAT
31# define SHLIB_COMPAT(a, b, c) 0
32# endif
33
34int
35__setrlimit (enum __rlimit_resource resource, const struct rlimit *rlim)
36{
37 struct rlimit64 rlim64;
38
39 if (rlim->rlim_cur == RLIM_INFINITY)
40 rlim64.rlim_cur = RLIM64_INFINITY;
41 else
42 rlim64.rlim_cur = rlim->rlim_cur;
43 if (rlim->rlim_max == RLIM_INFINITY)
44 rlim64.rlim_max = RLIM64_INFINITY;
45 else
46 rlim64.rlim_max = rlim->rlim_max;
47
48 return INLINE_SYSCALL_CALL (prlimit64, 0, resource, &rlim64, NULL);
49}
50
51libc_hidden_def (__setrlimit)
52# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
53strong_alias (__setrlimit, __setrlimit_1)
54compat_symbol (libc, __setrlimit, setrlimit, GLIBC_2_0);
55versioned_symbol (libc, __setrlimit_1, setrlimit, GLIBC_2_2);
56# else
57weak_alias (__setrlimit, setrlimit)
58# endif
59
60#endif /* __RLIM_T_MATCHES_RLIM64_T */
61