bool DiskImagePro::readSector(quint16 sector, QByteArray &data)
{
if (!seekToSector(sector)) {
return false;
}
QByteArray header;
header = sourceFile->read(12);
if ((quint8)header[5] != 0)
{
int dupnum = count[sector];
qDebug() << "!e" << tr("Duplicate sector: %1 dupnum: %2").arg(sector).arg(dupnum);
count[sector] = (count[sector]+1) % ((quint8)header[5]+1);
if (dupnum != 0) {
sector = m_geometry.sectorCount() + (quint8)header[6+dupnum];
/* can dupnum be 5? */
if (dupnum > 4 || sector <= 0 || sector > ((sourceFile->size()-16)/(128+12)))
{
qCritical() << "!e" << tr("Error in .pro image: sector: %1 dupnum: %2").arg(sector).arg(dupnum);
return false;
}
seekToSector(sector);
/* read sector header */
header = sourceFile->read(12);
}
}
wd1772status = header[1];
if (wd1772status != 0xff)
{
qDebug() << "!e" << tr("Bad sector");
return false;
}
data = sourceFile->read(m_geometry.bytesPerSector(sector));
if (data.size() != m_geometry.bytesPerSector(sector)) {
qCritical() << "!e" << tr("[%1] Cannot read from sector %2: %3.")
.arg(deviceName())
.arg(sector)
.arg(sourceFile->errorString());
return false;
}
return true;
}
int main (int argc, const char * argv[]) {
FILE* fp;// = fopen("samplefat.bin", "rb");
if (argc == 2) {
fp = fopen(argv[1], "rb");
if(fp == NULL)
{
printf("Invalid file path.\n");
return 0;
}
}
else {
printf("usage: %s %s\n", argv[0], "sample.bin");
return 1;
}
BootStrapSector bss;
readBootStrapSector(&bss, fp);
if(bss.magic55AA[0] != 0x55 || bss.magic55AA[1] !=0xAA)
{
printf("Invalid FAT-12 file.\n");
return 1;
}
sector_t rootDirectorySector = FIRST_FAT_SECTOR + bss.numSectorsInFAT * bss.numCopiesFAT;
size_t numSectorsInDirectory = bss.numEntriesRootDir * 32 / bss.numBytesPerSector;
sector_t firstClusterSector = rootDirectorySector + numSectorsInDirectory;
seekToSector(fp, rootDirectorySector, bss.numBytesPerSector);
// Extract
int i;
int fileCounter = 0;
seekToSector(fp, rootDirectorySector, bss.numBytesPerSector);
printf("Extracting...\n");
for (i = 0; i < bss.numEntriesRootDir; i++)
{
DirectoryEntry de;
readDirectoryEntry(&de, fp);
if (isFile(&de))
{
fileCounter++;
long offsetToNextDirectoryEntry = ftell(fp);
printf("%s.%s%s", de.filename, de.file_extension, (i < bss.numEntriesRootDir ? ", " : "\n"));
FILE* fat_file_p = fopen(de.filename, "wb");
UINT16 curCluster = de.start_cluster;
//printf("%x\n", curCluster);
BYTE buffer[bss.numBytesPerSector * bss.numSectorsPerCluster];
int fileSize = de.file_size;
while (curCluster < 0xFF8 && fileSize > 0)
{
readCluster(fp, curCluster, firstClusterSector, bss.numBytesPerSector, bss.numSectorsPerCluster, buffer);
//}
if(fileSize < bss.numBytesPerSector * bss.numSectorsPerCluster)
{
fwrite(buffer, sizeof(BYTE), fileSize, fat_file_p);
}
else
{
fwrite(buffer, sizeof(BYTE), sizeof(buffer), fat_file_p);
}
seekToSector(fp, FIRST_FAT_SECTOR, bss.numBytesPerSector);
curCluster = extract12File(fp, curCluster);
fileSize -= bss.numBytesPerSector * bss.numSectorsPerCluster;
}
fclose(fat_file_p);
fseek(fp, offsetToNextDirectoryEntry, SEEK_SET);
}
}
printf("\nExtracted: %i files\n", fileCounter);
fclose(fp);
return 0;
}
