#include "compound-file.h"
#include "emb-logging.h"
#include "helpers-binary.h"
#include <stdio.h>
#include <stdlib.h>

const unsigned int sizeOfFatEntry = sizeof(unsigned int);

bcf_file_fat* bcfFileFat_create(const unsigned int sectorSize)
{
    bcf_file_fat* fat = (bcf_file_fat*)malloc(sizeof(bcf_file_fat));
    if(!fat) { embLog_error("compound-file-fat.c bcfFileFat_create(), cannot allocate memory for fat\n"); } /* TODO: avoid crashing. null pointer will be accessed */
    fat->numberOfEntriesInFatSector = sectorSize / sizeOfFatEntry;
    fat->fatEntryCount = 0;
    return fat;
}

void loadFatFromSector(bcf_file_fat* fat, EmbFile* file)
{
    unsigned int i;
    unsigned int currentNumberOfFatEntries = fat->fatEntryCount;
    unsigned int newSize = currentNumberOfFatEntries + fat->numberOfEntriesInFatSector;
    for(i = currentNumberOfFatEntries; i < newSize; ++i)
    {
        unsigned int fatEntry = binaryReadUInt32(file);
        fat->fatEntries[i] = fatEntry;
    }
    fat->fatEntryCount = newSize;
}

void bcf_file_fat_free(bcf_file_fat* fat)
{
    free(fat);
    fat = 0;
}

/* kate: bom off; indent-mode cstyle; indent-width 4; replace-trailing-space-save on; */