vfat.h

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#ifndef MTOOLS_VFAT_H
#define MTOOLS_VFAT_H

#include "msdos.h"

/*
 * VFAT-related common header file
 */
#define VFAT_SUPPORT

struct unicode_char {
        char lchar;
        char uchar;
};


/* #define MAX_VFAT_SUBENTRIES 32 */ /* Theoretical max # of VSEs */
#define MAX_VFAT_SUBENTRIES 20          /* Max useful # of VSEs */
#define VSE_NAMELEN 13

#define VSE1SIZE 5
#define VSE2SIZE 6
#define VSE3SIZE 2

#include "stream.h"

struct vfat_subentry {
        unsigned char id;               /* 0x40 = last; & 0x1f = VSE ID */
        struct unicode_char text1[VSE1SIZE] PACKED;
        unsigned char attribute;        /* 0x0f for VFAT */
        unsigned char hash1;            /* Always 0? */
        unsigned char sum;              /* Checksum of short name */
        struct unicode_char text2[VSE2SIZE] PACKED;
        unsigned char sector_l;         /* 0 for VFAT */
        unsigned char sector_u;         /* 0 for VFAT */
        struct unicode_char text3[VSE3SIZE] PACKED;
};

/* Enough size for a worst case number of full VSEs plus a null */
#define VBUFSIZE ((MAX_VFAT_SUBENTRIES*VSE_NAMELEN) + 1)

/* Max legal length of a VFAT long name */
#define MAX_VNAMELEN (255)

#define VSE_PRESENT 0x01
#define VSE_LAST 0x40
#define VSE_MASK 0x1f

struct vfat_state {
        char name[VBUFSIZE];
        int status; /* is now a bit map of 32 bits */
        int subentries;
        unsigned char sum; /* no need to remember the sum for each entry,
                            * it is the same anyways */
        int present;
};


struct scan_state {
        int match_free;
        int shortmatch;
        int longmatch;
        int free_start;
        int free_end;
        int slot;
        int got_slots;
        int size_needed;
        int max_entry;
};

#include "mtoolsDirent.h"

void clear_vfat(struct vfat_state  *);
int unicode_write(char *, struct unicode_char *, int num, int *end);

int clear_vses(Stream_t *, int, size_t);
void autorename_short(char *, int);
void autorename_long(char *, int);

int lookupForInsert(Stream_t *Dir,
                                        char *dosname,
                                        char *longname,
                                        struct scan_state *ssp, 
                                        int ignore_entry,
                                        int source_entry,
                                        int pessimisticShortRename);

#define DO_OPEN 1 /* open all files that are found */
#define ACCEPT_LABEL 0x08
#define ACCEPT_DIR 0x10
#define ACCEPT_PLAIN 0x20
#define MATCH_ANY 0x40
#define NO_MSG 0x80
#define NO_DOTS 0x100 /* accept no dots if matched by wildcard */
#define DO_OPEN_DIRS 0x400 /* open all directories that are found */
#define OPEN_PARENT 0x1000  /* in target lookup, open parent
                             * instead of file itself */
#define NO_UNIX 0x2000 /* in target lookup, consider all files to reside on
                        * the DOS fs */
#endif

---