summaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/ftruncate.c
blob: 1068f2abe4deda1e60231a324c88b44249ea6545 (plain)
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
/* Copyright (C) 2016-2017 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 <unistd.h>
#include <sysdep.h>
#include <errno.h>

#ifndef __OFF_T_MATCHES_OFF64_T
/* Truncate the file FD refers to LENGTH bytes.  */
int
__ftruncate (int fd, off_t length)
{
# ifndef __NR_ftruncate
  return INLINE_SYSCALL_CALL (ftruncate64, fd,
			      __ALIGNMENT_ARG SYSCALL_LL (length));
# else
  return INLINE_SYSCALL_CALL (ftruncate, fd, length);
# endif
}
weak_alias (__ftruncate, ftruncate)
#endif