#ifndef _BIO_H#define _BIO_Htypedef	struct	Biobuf	Biobuf;#define Biobufhdr	Biobuf enum{	Bsize		= 8*1024,	Bungetsize	= UTFmax+1,		/* space for ungetc */	Bmagic		= 0x314159,	Beof		= -1,	Bbad		= -2, 	Binactive	= 0,		/* states */	Bractive,	Bwactive,	Bracteof, 	Bend}; struct	Biobuf{	int	icount;		/* neg num of bytes at eob */	int	ocount;		/* num of bytes at bob */	int	rdline;		/* num of bytes after rdline */	int	runesize;	/* num of bytes of last getrune */	int	state;		/* r/w/inactive */	int	fid;		/* open file */	int	flag;		/* magic if malloc'ed */	vlong	offset;		/* offset of buffer in file */	int	bsize;		/* size of buffer */	uchar*	bbuf;		/* pointer to beginning of buffer */	uchar*	ebuf;		/* pointer to end of buffer */	uchar*	gbuf;		/* pointer to good data in buf */	uchar	b[Bungetsize+Bsize];}; /* Dregs, redefined as functions for backwards compatibility */#define	BGETC(bp)	Bgetc(bp)#define	BPUTC(bp,c)	Bputc(bp,c)#define	BOFFSET(bp)	Boffset(bp)#define	BLINELEN(bp)	Blinelen(bp)#define	BFILDES(bp)	Bfildes(bp) int	Bbuffered(Biobuf*);int	Bfildes(Biobuf*);int	Bflush(Biobuf*);int	Bgetc(Biobuf*);int	Bgetd(Biobuf*, double*);long	Bgetrune(Biobuf*);int	Binit(Biobuf*, int, int);int	Binits(Biobuf*, int, int, uchar*, int);int	Blinelen(Biobuf*);vlong	Boffset(Biobuf*);Biobuf*	Bopen(char*, int);int	Bprint(Biobuf*, char*, ...);int	Bvprint(Biobuf*, char*, va_list);int	Bputc(Biobuf*, int);int	Bputrune(Biobuf*, long);void*	Brdline(Biobuf*, int);char*	Brdstr(Biobuf*, int, int);long	Bread(Biobuf*, void*, long);vlong	Bseek(Biobuf*, vlong, int);int	Bterm(Biobuf*);int	Bungetc(Biobuf*);int	Bungetrune(Biobuf*);long	Bwrite(Biobuf*, void*, long); #pragma	varargck	argpos	Bprint	2#endif