1 /* Linux setrlimit implementation (32 bits off_t).
2 Copyright (C) 2016-2021 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/resource.h>
20 #include <sysdep.h>
21 #include <shlib-compat.h>
22
23 #if !__RLIM_T_MATCHES_RLIM64_T
24
25 /* The compatibility symbol is meant to match the old __NR_getrlimit syscall
26 (with broken RLIM_INFINITY definition). It should be provided iff
27 __NR_getrlimit and __NR_ugetrlimit are both defined. */
28 # ifndef __NR_ugetrlimit
29 # undef SHLIB_COMPAT
30 # define SHLIB_COMPAT(a, b, c) 0
31 # endif
32
33 int
__setrlimit(enum __rlimit_resource resource,const struct rlimit * rlim)34 __setrlimit (enum __rlimit_resource resource, const struct rlimit *rlim)
35 {
36 struct rlimit64 rlim64;
37
38 if (rlim->rlim_cur == RLIM_INFINITY)
39 rlim64.rlim_cur = RLIM64_INFINITY;
40 else
41 rlim64.rlim_cur = rlim->rlim_cur;
42 if (rlim->rlim_max == RLIM_INFINITY)
43 rlim64.rlim_max = RLIM64_INFINITY;
44 else
45 rlim64.rlim_max = rlim->rlim_max;
46
47 return INLINE_SYSCALL_CALL (prlimit64, 0, resource, &rlim64, NULL);
48 }
49
50 libc_hidden_def (__setrlimit)
51 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
52 strong_alias (__setrlimit, __setrlimit_1)
53 compat_symbol (libc, __setrlimit, setrlimit, GLIBC_2_0);
54 versioned_symbol (libc, __setrlimit_1, setrlimit, GLIBC_2_2);
55 # else
56 weak_alias (__setrlimit, setrlimit)
57 # endif
58
59 #endif /* __RLIM_T_MATCHES_RLIM64_T */
60