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/* Copyright (C) 1999, 2000, 2003, 2006 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <sys/resource.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <shlib-compat.h>
#include <bp-checks.h>
#include <kernel-features.h>
extern int __new_getrlimit (enum __rlimit_resource resource,
struct rlimit *__unbounded rlimits);
/* Linux 2.3.25 introduced a new system call since the types used for
the limits are now unsigned. */
#if defined __NR_ugetrlimit && !defined __ASSUME_NEW_GETRLIMIT_SYSCALL
int __have_no_new_getrlimit;
#endif
int
__new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
{
#ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL
return INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
#else
int result;
# ifdef __NR_ugetrlimit
if (__have_no_new_getrlimit <= 0)
{
result = INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
/* If the system call is available remember this fact and return. */
if (result != -1 || errno != ENOSYS)
{
__have_no_new_getrlimit = -1;
return result;
}
/* Remember that the system call is not available. */
__have_no_new_getrlimit = 1;
}
# endif
/* Fall back to the old system call. */
result = INLINE_SYSCALL (getrlimit, 2, resource, CHECK_1 (rlimits));
if (result == -1)
return result;
/* We might have to correct the limits values. Since the old values
were signed the infinity value is too small. */
if (rlimits->rlim_cur == RLIM_INFINITY >> 1)
rlimits->rlim_cur = RLIM_INFINITY;
if (rlimits->rlim_max == RLIM_INFINITY >> 1)
rlimits->rlim_max = RLIM_INFINITY;
return result;
#endif
}
weak_alias (__new_getrlimit, __getrlimit);
versioned_symbol (libc, __new_getrlimit, getrlimit, GLIBC_2_2);
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