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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2010 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
#include "stdhdr.h"
int
setvbuf(Sfio_t* f, char* buf, int type, size_t size)
{
STDIO_INT(f, "setvbuf", int, (Sfio_t*, char*, int, size_t), (f, buf, type, size))
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, 0);
}
else if (type == _IOFBF)
{
if (size == 0)
size = SF_BUFSIZE;
sfsync(f);
sfsetbuf(f, (Void_t*)buf, size);
}
return 0;
}
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