forked from KolibriOS/kolibrios
update CLib
git-svn-id: svn://kolibrios.org@614 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
79
programs/develop/open watcom/trunk/clib/streamio/setvbuf.c
Normal file
79
programs/develop/open watcom/trunk/clib/streamio/setvbuf.c
Normal file
@@ -0,0 +1,79 @@
|
||||
/****************************************************************************
|
||||
*
|
||||
* 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: Platform independent setvbuf() implementation.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
|
||||
#include "variety.h"
|
||||
#include <stdio.h>
|
||||
#include <stddef.h>
|
||||
#include <limits.h>
|
||||
#include "fileacc.h"
|
||||
#include "rtdata.h"
|
||||
#include "streamio.h"
|
||||
|
||||
|
||||
extern void __full_io_exit();
|
||||
|
||||
|
||||
_WCRTLINK int setvbuf( FILE *fp, char *buf, int mode, size_t size )
|
||||
{
|
||||
__stream_check( fp, 1 );
|
||||
__null_check( buf, 2 );
|
||||
if( size > INT_MAX ) {
|
||||
/* 16-bit buffer filling code can't handle >32k (-ve size) */
|
||||
return( -1 );
|
||||
}
|
||||
/* check for allowable values for mode */
|
||||
switch( mode ) {
|
||||
case _IOFBF:
|
||||
case _IOLBF:
|
||||
case _IONBF:
|
||||
break;
|
||||
default:
|
||||
return( -1 );
|
||||
}
|
||||
if( buf != NULL && size == 0 ) { /* JBS 27-aug-90 */
|
||||
return( -1 );
|
||||
}
|
||||
_ValidFile( fp, -1 );
|
||||
_AccessFile( fp );
|
||||
__chktty( fp ); /* JBS 28-aug-90 */
|
||||
if( size != 0 ) {
|
||||
fp->_bufsize = size; /* JBS 27-aug-90 */
|
||||
}
|
||||
_FP_BASE(fp) = buf;
|
||||
fp->_ptr = buf;
|
||||
fp->_flag &= ~(_IONBF | _IOLBF | _IOFBF); /* FWC 14-jul-87 */
|
||||
fp->_flag |= mode;
|
||||
if( buf == NULL ) { /* FWC 16-mar-93 */
|
||||
__ioalloc( fp );
|
||||
}
|
||||
_ReleaseFile( fp );
|
||||
return( 0 );
|
||||
}
|
Reference in New Issue
Block a user