/*	Copyright (c) 1984, 1986, 1987, 1988 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/

#ident	"@(#)head:stdio.h	2.14.2.2"
#ifndef _NFILE
#define _NFILE	64

#if u370
#define BUFSIZ	4096
#endif
#if vax || u3b || M32 || u3b15 || u3b5 || u3b2 || i286 || i386
#define BUFSIZ	1024
#endif
#if pdp11
#define BUFSIZ	512
#endif

/* buffer size for multi-character output to unbuffered files */
#define _SBFSIZ 8

typedef struct {
#if vax || u3b || M32 || u3b15 || u3b5 || u3b2 || i286 || i386
	int	_cnt;
	unsigned char	*_ptr;
#else
	unsigned char	*_ptr;
	int	_cnt;
#endif
	unsigned char	*_base;
	char	_flag;
	char	_file;
} FILE;

/*
 * _IOLBF means that a file's output will be buffered line by line
 * In addition to being flags, _IONBF, _IOLBF and _IOFBF are possible
 * values for "type" in setvbuf.
 */
#define _IOFBF		0000
#define _IOREAD		0001
#define _IOWRT		0002
#define _IONBF		0004
#define _IOMYBUF	0010
#define _IOEOF		0020
#define _IOERR		0040
#define _IOLBF		0100
#define _IORW		0200

#ifndef NULL
#if !i286 || SMALL_M || MIDDLE_M
#define NULL		0
#else
#define NULL		0L
#endif
#endif

#ifndef EOF
#define EOF		(-1)
#endif

#define stdin		(&_iob[0])
#define stdout		(&_iob[1])
#define stderr		(&_iob[2])

#define _bufend(p)	_bufendtab[(p)->_file]
#define _bufsiz(p)	(_bufend(p) - (p)->_base)

#ifndef lint
#define getc(p)		(--(p)->_cnt < 0 ? _filbuf(p) : (int) *(p)->_ptr++)
#define putc(x, p)	(--(p)->_cnt < 0 ? \
			_flsbuf((unsigned char) (x), (p)) : \
			(int) (*(p)->_ptr++ = (unsigned char) (x)))
#define getchar()	getc(stdin)
#define putchar(x)	putc((x), stdout)
#define clearerr(p)	((void) ((p)->_flag &= ~(_IOERR | _IOEOF)))
#define feof(p)		((p)->_flag & _IOEOF)
#define ferror(p)	((p)->_flag & _IOERR)
#define fileno(p)	(p)->_file
#endif

extern FILE	_iob[_NFILE];
extern FILE	*fopen(), *fdopen(), *freopen(), *popen(), *tmpfile();
extern long	ftell();
extern void	rewind(), setbuf();
extern char	*ctermid(), *cuserid(), *fgets(), *gets(), *tempnam(), *tmpnam();
extern int	fclose(), fflush(), fread(), fwrite(), fseek(), fgetc(),
		getw(), pclose(), printf(), fprintf(), sprintf(),
		vprintf(), vfprintf(), vsprintf(), fputc(), putw(),
		puts(), fputs(), scanf(), fscanf(), sscanf(),
		setvbuf(), system(), ungetc();
extern unsigned char *_bufendtab[];

#define L_ctermid	9
#define L_cuserid	9
#define P_tmpdir	"/usr/tmp/"
#define L_tmpnam	(sizeof(P_tmpdir) + 15)
#endif
