/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #define	EOF	(-1)#define	NBUF	512 struct io{	int	fd;	uchar	*bufp, *ebuf, *strp;	uchar	buf[NBUF];};io *err; io *openfd(int), *openstr(void), *opencore(char *, int);int emptybuf(io*);void pchr(io*, int);int rchr(io*);int rutf(io*, char*, Rune*);void closeio(io*);void flush(io*);int fullbuf(io*, int);void pdec(io*, int);void poct(io*, unsigned);void pptr(io*, void*);void pquo(io*, char*);void pwrd(io*, char*);void pstr(io*, char*);void pcmd(io*, tree*);void pval(io*, word*);void pfnc(io*, thread*);void pfmt(io*, char*, ...);