glibc/ports/sysdeps/unix/sysv/linux/arm/ftruncate64.c

37 lines
1.2 KiB
C

/* Copyright (C) 1997-2013 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 <sys/types.h>
#include <errno.h>
#include <endian.h>
#include <unistd.h>
#include <sysdep.h>
#include <sys/syscall.h>
/* Truncate the file FD refers to to LENGTH bytes. */
int
__ftruncate64 (int fd, off64_t length)
{
unsigned int low = length & 0xffffffff;
unsigned int high = length >> 32;
int result = INLINE_SYSCALL (ftruncate64, 4, fd, 0,
__LONG_LONG_PAIR (high, low));
return result;
}
weak_alias (__ftruncate64, ftruncate64)