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/* Copyright (C) 2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/types.h>
/* Add this redirection so the strong_alias linking getrlimit64 to
{__}getrlimit does not throw a type error. */
#undef getrlimit
#undef __getrlimit
#define getrlimit getrlimit_redirect
#define __getrlimit __getrlimit_redirect
#include <sys/resource.h>
#undef getrlimit
#undef __getrlimit
/* RLIM64_INFINITY was supposed to be a glibc convention rather than
anything seen by the kernel, but it ended being passed to the kernel
through the prlimit64 syscall. Given that a lot of binaries with
the wrong constant value are in the wild, provide a wrapper function
fixing the value after the syscall. */
#define KERNEL_RLIM64_INFINITY 0xffffffffffffffffULL
int
__getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
{
struct rlimit64 krlimits;
if (INLINE_SYSCALL_CALL (prlimit64, 0, resource, NULL, &krlimits) < 0)
return -1;
if (krlimits.rlim_cur == KERNEL_RLIM64_INFINITY)
rlimits->rlim_cur = RLIM64_INFINITY;
else
rlimits->rlim_cur = krlimits.rlim_cur;
if (krlimits.rlim_max == KERNEL_RLIM64_INFINITY)
rlimits->rlim_max = RLIM64_INFINITY;
else
rlimits->rlim_max = krlimits.rlim_max;
return 0;
}
libc_hidden_def (__getrlimit64)
strong_alias (__getrlimit64, __GI_getrlimit)
strong_alias (__getrlimit64, __GI___getrlimit)
strong_alias (__getrlimit64, __getrlimit)
weak_alias (__getrlimit64, getrlimit)
weak_alias (__getrlimit64, getrlimit64)
libc_hidden_weak (getrlimit64)
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