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#ifndef MTOOLS_VFAT_H
#define MTOOLS_VFAT_H
#include "msdos.h"
#include "stream.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
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 */
};
struct scan_state {
int match_free;
int shortmatch;
int longmatch;
int free_start;
int free_size;
int slot;
int got_slots;
int size_needed;
int max_entry;
};
void clear_vfat(struct vfat_state *);
int check_vfat(struct vfat_state *v, struct directory *dir);
int unicode_read(struct unicode_char *, char *, int num);
int unicode_write(char *, struct unicode_char *, int num, int *end);
unsigned char sum_shortname(char *);
int write_vfat(Stream_t *, char *, char *, int);
void clear_vses(Stream_t *, int, size_t);
void autorename_short(char *, int);
void autorename_long(char *, int);
int vfat_lookup(Stream_t *Dir,
struct directory *dir, int *entry,
int *beginpos,
const char *filename,
int flags, char *outname,
char *shortname, char *longname);
struct directory *dir_read(Stream_t *Stream,
struct directory *dir,
int num,
struct vfat_state *v);
#define DO_OPEN 1
#define ACCEPT_NO_DOTS 0x4
#define ACCEPT_PLAIN 0x20
#define ACCEPT_DIR 0x10
#define ACCEPT_LABEL 0x08
#define SINGLE 2
#define MATCH_ANY 0x40
#define NO_MSG 0x80
#define NO_DOTS 0x100
#endif
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