56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
|
/****************************************************************************
|
||
|
|
*
|
||
|
|
* Open Watcom Project
|
||
|
|
*
|
||
|
|
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* ========================================================================
|
||
|
|
*
|
||
|
|
* This file contains Original Code and/or Modifications of Original
|
||
|
|
* Code as defined in and that are subject to the Sybase Open Watcom
|
||
|
|
* Public License version 1.0 (the 'License'). You may not use this file
|
||
|
|
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
|
||
|
|
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
|
||
|
|
* provided with the Original Code and Modifications, and is also
|
||
|
|
* available at www.sybase.com/developer/opensource.
|
||
|
|
*
|
||
|
|
* The Original Code and all software distributed under the License are
|
||
|
|
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
||
|
|
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
|
||
|
|
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
|
||
|
|
* NON-INFRINGEMENT. Please see the License for the specific language
|
||
|
|
* governing rights and limitations under the License.
|
||
|
|
*
|
||
|
|
* ========================================================================
|
||
|
|
*
|
||
|
|
* Description: lseek wrapper with positive -> extend file check
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
#include "variety.h"
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#ifdef __NT__
|
||
|
|
#include <windows.h>
|
||
|
|
#endif
|
||
|
|
#include "iomode.h"
|
||
|
|
#include "rtcheck.h"
|
||
|
|
#include "seterrno.h"
|
||
|
|
#include "lseek.h"
|
||
|
|
|
||
|
|
_WCRTLINK long lseek( int handle, long offset, int origin )
|
||
|
|
{
|
||
|
|
unsigned iomode_flags;
|
||
|
|
|
||
|
|
__handle_check( handle, -1 );
|
||
|
|
|
||
|
|
/*** Set the _FILEEXT iomode_flags bit if positive offset ***/
|
||
|
|
iomode_flags = __GetIOMode( handle );
|
||
|
|
|
||
|
|
if( offset > 0 && !(iomode_flags & _APPEND) )
|
||
|
|
__SetIOMode( handle, iomode_flags | _FILEEXT );
|
||
|
|
return( __lseek( handle, offset, origin ) );
|
||
|
|
}
|