/*
 * Written by Paul Popelka (paulp@uts.amdahl.com)
 * 
 * You can do anything you want with this software, just don't say you wrote
 * it, and don't remove this notice.
 * 
 * This software is provided "as is".
 * 
 * The author supplies this software to be publicly redistributed on the
 * understanding that the author is not responsible for the correct
 * functioning of this software in any circumstances and is not liable for
 * any damages caused by this software.
 * 
 * October 1992
 * 
 *	$Id: direntry.h,v 1.1 1993/08/13 11:35:32 cgd Exp $
 */

/*
 * Structure of a dos directory entry.
 */
struct direntry {
	u_char deName[8];	/* filename, blank filled */
#define	SLOT_EMPTY	0x00	/* slot has never been used */
#define	SLOT_E5		0x05	/* the real value is 0xe5 */
#define	SLOT_DELETED	0xe5	/* file in this slot deleted */
	u_char deExtension[3];	/* extension, blank filled */
	u_char deAttributes;	/* file attributes */
#define	ATTR_NORMAL	0x00	/* normal file */
#define	ATTR_READONLY	0x01	/* file is readonly */
#define	ATTR_HIDDEN	0x02	/* file is hidden */
#define	ATTR_SYSTEM	0x04	/* file is a system file */
#define	ATTR_VOLUME	0x08	/* entry is a volume label */
#define	ATTR_DIRECTORY	0x10	/* entry is a directory name */
#define	ATTR_ARCHIVE	0x20	/* file is new or modified */
	char deReserved[10];	/* reserved */
	u_short deTime;		/* create/last update time */
	u_short deDate;		/* create/last update date */
	u_short deStartCluster;	/* starting cluster of file */
	u_long deFileSize;	/* size of file in bytes */
};

/*
 * This is the format of the contents of the deTime field in the direntry
 * structure.
 */
struct DOStime {
	u_short
	dt_2seconds:5,		/* seconds divided by 2 */
	dt_minutes:6,		/* minutes */
	dt_hours:5;		/* hours */
};

/*
 * This is the format of the contents of the deDate field in the direntry
 * structure.
 */
struct DOSdate {
	u_short
	dd_day:5,		/* day of month */
	dd_month:4,		/* month */
	dd_year:7;		/* years since 1980 */
};

union dostime {
	struct DOStime dts;
	u_short dti;
};

union dosdate {
	struct DOSdate dds;
	u_short ddi;
};

/*
 * The following defines are used to rename fields in the ufs_specific
 * structure in the nameidata structure in namei.h
 */
#define	ni_msdosfs	ni_ufs
#define	msdosfs_count	ufs_count
#define	msdosfs_offset	ufs_offset
#define	msdosfs_cluster	ufs_ino

#if defined(KERNEL)
void unix2dostime __P((struct timeval * tvp, union dosdate * ddp, union dostime * dtp));
void dos2unixtime __P((union dosdate * ddp, union dostime * dtp, struct timeval * tvp));
int dos2unixfn __P((u_char dn[11], u_char * un));
void unix2dosfn __P((u_char * un, u_char dn[11], int unlen));
#endif				/* defined(KERNEL) */