root/include/fat.h

INCLUDED FROM

#ifndef FAT_H
#define FAT_H

struct DirEntry {
    unsigned char name[11];
    unsigned char attribute;
    unsigned char reserved[10];
    unsigned char date[4];
    short int startingCluster;
    int fileSize;
};

struct BootSector {
    char jump[3];
    char oemLable[8];
    unsigned short bytesPerSector;
    unsigned char sectorsPerCluster;
    unsigned short reservedSectors;
    unsigned char fats;
    unsigned short rootEntries;
    unsigned short smallSectors;
    unsigned char mediaDescriptor;
    unsigned short sectorsPerFat;
    unsigned short sectorsPerTrack;
    unsigned short heads;
    unsigned int hiddenSectors;
    unsigned int largeSectors;
};

struct PartTable {
    unsigned char status;
    unsigned char sectorAddress[3];
    unsigned char partitionType;
    unsigned char lastSectorAddress[3];
    unsigned int LBA;
    unsigned int sectorsInPartition;
};

struct MBR {
    char code[0x1B8];
    char diskSignature[4];
    char nulls[2];
    struct PartTable PT[4];
};

struct vDirNode {
    unsigned char *name;
    unsigned long startSector;
    struct vDirNode *parent;
    struct vDirNode *nextSibling;
    struct vDirNode *firstChild;
};

struct DirSects {
    int cluster;
    int sector;
    int sectorNo;
    int sectorInCluster;
    struct vDirNode *directory;
};

unsigned long FirstFAT;
unsigned long RootDir;
unsigned long DataStart;
unsigned long FATLength;
unsigned short BytesPerSector;
unsigned char SectorsPerCluster;
unsigned short RootDirectoryEntries;

#endif