sys/fs/msdosfs/direntry.h

/*
 * 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
 *
 *      from NetBSD:    direntry.h,v 1.1 1993/08/13 11:35:32 cgd Exp
 *      $Id$
 */

/*
 * 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) */