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