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/* Linux setrlimit64 implementation (64 bits off_t).
Copyright (C) 2010-2017 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>
#include <shlib-compat.h>
/* Add this redirection so the strong_alias for __RLIM_T_MATCHES_RLIM64_T
linking setlimit64 to {__}setrlimit does not throw a type error. */
#undef settrlimit
#undef __sttrlimit
#define setrlimit setrlimit_redirect
#define __setrlimit __setrlimit_redirect
#include <sys/resource.h>
#undef setrlimit
#undef __setrlimit
/* Set the soft and hard limits for RESOURCE to *RLIMITS.
Only the super-user can increase hard limits.
Return 0 if successful, -1 if not (and sets errno). */
int
__setrlimit64 (enum __rlimit_resource resource, const struct rlimit64 *rlimits)
{
int res;
#ifdef __NR_prlimit64
res = INLINE_SYSCALL_CALL (prlimit64, 0, resource, rlimits, NULL);
if (res == 0 || errno != ENOSYS)
return res;
#endif
/* The fallback code only makes sense if the platform supports
__NR_setrlimit. */
#ifdef __NR_setrlimit
# if !__RLIM_T_MATCHES_RLIM64_T
struct rlimit rlimits32;
if (rlimits->rlim_cur >= RLIM_INFINITY)
rlimits32.rlim_cur = RLIM_INFINITY;
else
rlimits32.rlim_cur = rlimits->rlim_cur;
if (rlimits->rlim_max >= RLIM_INFINITY)
rlimits32.rlim_max = RLIM_INFINITY;
else
rlimits32.rlim_max = rlimits->rlim_max;
# else
# define rlimits32 (*rlimits)
# endif
res = INLINE_SYSCALL_CALL (setrlimit, resource, &rlimits32);
#endif
return res;
}
weak_alias (__setrlimit64, setrlimit64)
#if __RLIM_T_MATCHES_RLIM64_T
strong_alias (__setrlimit64, __setrlimit)
weak_alias (__setrlimit64, setrlimit)
#endif
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