76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* Linux setrlimit64 implementation (64 bits off_t).
|
|
Copyright (C) 2010-2016 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
|