/*
 * CDE - Common Desktop Environment
 *
 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
 *
 * These libraries and programs are free software; you can
 * redistribute them and/or modify them under the terms of the GNU
 * Lesser General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * These libraries and programs are distributed in the hope that
 * they 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 these libraries and programs; if not, write
 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA 02110-1301 USA
 */
/* $XConsortium: stdvbuf.c /main/3 1995/11/01 18:40:31 rswiston $ */
/***************************************************************
*                                                              *
*                      AT&T - PROPRIETARY                      *
*                                                              *
*         THIS IS PROPRIETARY SOURCE CODE LICENSED BY          *
*                          AT&T CORP.                          *
*                                                              *
*                Copyright (c) 1995 AT&T Corp.                 *
*                     All Rights Reserved                      *
*                                                              *
*           This software is licensed by AT&T Corp.            *
*       under the terms and conditions of the license in       *
*       http://www.research.att.com/orgs/ssr/book/reuse        *
*                                                              *
*               This software was created by the               *
*           Software Engineering Research Department           *
*                    AT&T Bell Laboratories                    *
*                                                              *
*               For further information contact                *
*                     gsf@research.att.com                     *
*                                                              *
***************************************************************/
#include	"sfhdr.h"
#include	"stdio.h"

/*	Stdio function setvbuf()
**
**	Written by Kiem-Phong Vo (12/10/90)
*/

#if __STD_C
_stdsetvbuf(Sfio_t* f, char *buf, int type, int size)
#else
_stdsetvbuf(f,buf,type,size)
Sfio_t	*f;
char	*buf;
int	type;
int	size;
#endif
{
	if(type == _IOLBF)
		sfset(f,SF_LINE,1);
	else if((f->flags&SF_STRING))
		return -1;
	else if(type == _IONBF)
	{	sfsync(f);
		sfsetbuf(f,NIL(Void_t*),0);
	}
	else if(type == _IOFBF)
	{	if(size == 0)
			size = SF_BUFSIZE;
		sfsync(f);
		sfsetbuf(f,(Void_t*)buf,size);
	}

	return 0;
}