glibc/sysdeps/unix/sysv/linux/setrlimit64.c

54 lines
1.7 KiB
C

/* Copyright (C) 2010-2013 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/resource.h>
#include <sys/types.h>
#include <sysdep.h>
#include <kernel-features.h>
/* 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 (resource, rlimits)
enum __rlimit_resource resource;
const struct rlimit64 *rlimits;
{
#ifdef __ASSUME_PRLIMIT64
return INLINE_SYSCALL (prlimit64, 4, 0, resource, rlimits, NULL);
#else
# ifdef __NR_prlimit64
int res = INLINE_SYSCALL (prlimit64, 4, 0, resource, rlimits, NULL);
if (res == 0 || errno != ENOSYS)
return res;
# endif
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;
return __setrlimit (resource, &rlimits32);
#endif
}