/*
 *
 *	STDIO.H		Standard i/o include file
 *
 */

#ifndef STDIO_H
#define	STDIO_H

#include <stddef.h>
#include <stdlib.h>
#include <types.h>

/*
 *	CONSTANTS:
 */

#define	_NFILE		(20)		/* maximum number of open streams */
#define	OPEN_MAX	_NFILE		/* ANSI equivalent (replaces _NFILE) */
#define	FILENAME_MAX	(128)		/* maximum filename size */
#define	BUFSIZ		(1024)		/* default buffer size */
#define	EOF		(-1)		/* end-of-file indicator */
#define	EOS		'\0'		/* end-of-string indicator */

#ifndef FALSE
#define	FALSE		(0)		/* boolean false */
#define	TRUE		(!FALSE)	/* boolean true */
#endif

#ifndef ERROR
#define	ERROR		(-1)		/* general error condition */
#endif

/* lseek() origins */
#define	SEEK_SET	-1		/* from beginning of file */
#define	SEEK_CUR	0		/* from current location */
#define	SEEK_END	1		/* from end of file */

/* cfg_ch() control flags */
#define	_CIOB		0x01		/* use bios rather than gemdos */
#define	_CIOCH		0x02		/* return only 8-bit values */
#define	_CIOVT		0x04		/* process vt52 escape codes */

/* FILE structure flags */
#define	_IOREAD		0x0001		/* file may be read from */
#define	_IOWRT		0x0002		/* file may be written to */
#define	_IOBIN		0x0004		/* file is in "binary" mode */
#define	_IODEV		0x0008		/* file is a character device */
#define _IOAP		0x0040		/* file opened in append mode */
#define	_IORW		0x0080		/* last i/o was 0:read/1:write */
#define	_IOFBF		0x0100		/* i/o is fully buffered */
#define	_IOLBF		0x0200		/* i/o is line buffered */
#define	_IONBF		0x0400		/* i/o is not buffered */
#define	_IOMYBUF	0x0800		/* standard buffer */
#define	_IOEOF		0x1000		/* EOF has been reached */
#define	_IOERR		0x4000		/* an error has occured */
#define _IOUGET		0x8000		/* Last char was ungeted */

typedef	struct			/* FILE structure */
	{
	int		_cnt;		/* # of bytes in buffer */
	int		_pos;		/* Where we have read to */
	unsigned char	*_base;		/* base of file buffer */
	unsigned int	_flag;		/* file status flags */
	APTR		_file;		/* file handle */
	int		_bsiz;		/* buffer size */
	unsigned char	_ch;		/* tiny buffer, for "unbuffered" i/o */
	}
	FILE;

#define	L_tmpnam	20
#define	TMP_MAX		1000

extern	char	*etext;
extern	char	*edata;
extern	char	*end;

extern	void	_exit();

extern	FILE	*_iob[];
extern	FILE	*fopen(), *fdopen(), *freopen(), *fopenp();
extern	long	ftell(), fsize();
extern	void	rewind();
extern  int	setbuf(), setvbuf();
extern	char	*fgets(), *gets(), *tmpnam(), *tempnam();
extern	char	*fullpath(), *findfile(), *pfindfile(), *wildcard();

/* standard streams */
#define stdin	(_iob[0])
#define stdout	(_iob[1])
#define stderr	(_iob[2])

/* stream macros */
#define clearerr(fp)	((void) ((fp)->_flag &= ~(_IOERR|_IOEOF)))
#define feof(fp)	((fp)->_flag & _IOEOF)
#define ferror(fp)	((fp)->_flag & _IOERR)
#define fileno(fp)	((fp)->_file)

/* aliases */
#define	getc			fgetc
#define	ungetc(c,fp)		fungetc((char)(c),fp)
#define	putc			fputc
#define	getchar()		fgetc(stdin)
#define	ungetchar(c)		fungetc((char)(c),stdin)
#define	putchar(c)		fputc((c),stdout)
#define	fexists			exists
#define	exists(f)		access(f,0x00)
#define	unlink			remove
#define puts(str)		fputs(str,stdout)

#endif STDIO_H