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
37
38
39
40
41
42
|
/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <sys/types.h>
#include <errno.h>
#include <hurd.h>
#include <fcntl.h>
/* Truncate FILE_NAME to LENGTH bytes. */
int
DEFUN(truncate, (file_name, length),
CONST char *file_name AND off_t length)
{
error_t err;
file_t file = __file_name_lookup (file_name, O_WRITE, 0);
if (file == MACH_PORT_NULL)
return -1;
err = __file_set_size (file, length);
__mach_port_deallocate (__mach_task_self (), file);
if (err)
return __hurd_fail (err);
return 0;
}
|
