/*
 * 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;
	unsigned char	*bufp, *ebuf, *strp;
	unsigned char	buf[NBUF];
};
io *err;

io *openfd(int), *openstr(void), *opencore(char *, int);
int emptybuf(io*);
void pchr(io*, int);
int rchr(io*);
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*, ...);