setbuf.c

一个类linux的dos下开发的操作系统.

#include <stdio.h> /* FILE, fflush() */
/*****************************************************************************
*****************************************************************************/
void setbuf(FILE *stream, char *buffer)
{
	fflush(stream); /* ??? */
	stream->buf_base = stream->buf_ptr = buffer;
	if(buffer != NULL)
	{
		stream->size = stream->room=BUFSIZ;
		stream->flags = _IOFBF;
	}
	else
	{
		stream->size = stream->room = 0;
		stream->flags = _IONBF;
	}
}