/*
	DIRFN.H:	Definitions for DIRFN.C routines

    Copyright 1987,1988 Michael J. Housky
    Released to the public domain: Aug. 20, 1988 by Michael J. Housky
*/

/* ------------	CONSTANTS, MACROS: */

/*	DOS Directory Attribute Bit Definitions: */

#define DATR_RDONLY	0x01	/* File is read-only */
#define DATR_HIDDEN	0x02	/* File is hidden */
#define DATR_SYSTEM	0x04	/* File is a system file */
#define DATR_VLABEL	0x08	/* Volume label entry, not a file */
#define DATR_SUBDIR	0x10	/* File is a subdirectory */
#define DATR_ARCHIV	0x20	/* File selected for archive. */

/* ------------	TYPE DEFINITIONS: */

typedef struct		/* structure of DOS FIND DTA, used by  */
{			/* used by dir_sscan/dir_cscan functions */
    char	resv[21];	/* reserved for DOS */
    unsigned char
		attr;		/* attribute byte */
    unsigned	time;		/* time word */
    unsigned	date;		/* date word */
    long	size;		/* file size in bytes */
    char	name[13];	/* file name */
} FIND_DTA;

typedef struct {		/* filename entry of array returned by */
				/* get_files() function */
	char          filename[13];
	} FILE_TYPE;

/* ------------	GETFILE.C Functions: */

int get_files(
char *,int,FILE_TYPE **);


/* ------------	DIRFN.C Functions: */

char far *cur_dta(	/* Return far pointer to current DTA */
	void);

void set_dta(		/* Set DOS Disk Transfer Address */
	char far *);		/* pdta: far pointer to new DTA */

FIND_DTA *dir_sscan(	/* Start a directory scan */
	FIND_DTA*,		/* pdta: pointer to caller's DTA struct, or */
				/*	 NULL to malloc and return pointer. */
	char*,			/* fn:   drive:path\filename to match */
	int);			/* attr: attribute bits to match */

FIND_DTA *dir_cscan(	/* Continue a directory scan. */
	FIND_DTA*);		/* pdta: pointer to caller's DTA struct, */
				/*   previously established by a dir_sscan. */