about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/arm/ftruncate64.c
blob: 75bd0162b2e10be24fd4da01899945582366b7e9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/* Copyright (C) 1997-2015 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)