public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if (partition.Start > 0)
{
return(false);
}
if (imagePlugin.Info.SectorSize != 256)
{
return(false);
}
if (imagePlugin.Info.Sectors != 683 && imagePlugin.Info.Sectors != 768 && imagePlugin.Info.Sectors != 1366 &&
imagePlugin.Info.Sectors != 3200)
{
return(false);
}
byte[] sector;
if (imagePlugin.Info.Sectors == 3200)
{
sector = imagePlugin.ReadSector(1560);
CommodoreHeader cbmHdr = new CommodoreHeader();
IntPtr cbmHdrPtr = Marshal.AllocHGlobal(Marshal.SizeOf(cbmHdr));
Marshal.Copy(sector, 0, cbmHdrPtr, Marshal.SizeOf(cbmHdr));
cbmHdr = (CommodoreHeader)Marshal.PtrToStructure(cbmHdrPtr, typeof(CommodoreHeader));
Marshal.FreeHGlobal(cbmHdrPtr);
if (cbmHdr.diskDosVersion == 0x44 && cbmHdr.dosVersion == 0x33 && cbmHdr.diskVersion == 0x44)
{
return(true);
}
}
else
{
sector = imagePlugin.ReadSector(357);
CommodoreBAM cbmBam = new CommodoreBAM();
IntPtr cbmBamPtr = Marshal.AllocHGlobal(Marshal.SizeOf(cbmBam));
Marshal.Copy(sector, 0, cbmBamPtr, Marshal.SizeOf(cbmBam));
cbmBam = (CommodoreBAM)Marshal.PtrToStructure(cbmBamPtr, typeof(CommodoreBAM));
Marshal.FreeHGlobal(cbmBamPtr);
if (cbmBam.dosVersion == 0x41 && (cbmBam.doubleSided == 0x00 || cbmBam.doubleSided == 0x80) &&
cbmBam.unused1 == 0x00 && cbmBam.directoryTrack == 0x12)
{
return(true);
}
}
return(false);
}
public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information,
Encoding encoding)
{
Encoding = new PETSCII();
byte[] sector;
StringBuilder sbInformation = new StringBuilder();
sbInformation.AppendLine("Commodore file system");
XmlFsType = new FileSystemType
{
Type = "Commodore file system",
Clusters = (long)imagePlugin.Info.Sectors,
ClusterSize = 256
};
if (imagePlugin.Info.Sectors == 3200)
{
sector = imagePlugin.ReadSector(1560);
CommodoreHeader cbmHdr = new CommodoreHeader();
IntPtr cbmHdrPtr = Marshal.AllocHGlobal(Marshal.SizeOf(cbmHdr));
Marshal.Copy(sector, 0, cbmHdrPtr, Marshal.SizeOf(cbmHdr));
cbmHdr = (CommodoreHeader)Marshal.PtrToStructure(cbmHdrPtr, typeof(CommodoreHeader));
Marshal.FreeHGlobal(cbmHdrPtr);
sbInformation.AppendFormat("Directory starts at track {0} sector {1}", cbmHdr.directoryTrack,
cbmHdr.directorySector).AppendLine();
sbInformation
.AppendFormat("Disk DOS Version: {0}", Encoding.ASCII.GetString(new[] { cbmHdr.diskDosVersion }))
.AppendLine();
sbInformation.AppendFormat("DOS Version: {0}", Encoding.ASCII.GetString(new[] { cbmHdr.dosVersion }))
.AppendLine();
sbInformation.AppendFormat("Disk Version: {0}", Encoding.ASCII.GetString(new[] { cbmHdr.diskVersion }))
.AppendLine();
sbInformation.AppendFormat("Disk ID: {0}", cbmHdr.diskId).AppendLine();
sbInformation.AppendFormat("Disk name: {0}", StringHandlers.CToString(cbmHdr.name, Encoding))
.AppendLine();
XmlFsType.VolumeName = StringHandlers.CToString(cbmHdr.name, Encoding);
XmlFsType.VolumeSerial = $"{cbmHdr.diskId}";
}
else
{
sector = imagePlugin.ReadSector(357);
CommodoreBAM cbmBam = new CommodoreBAM();
IntPtr cbmBamPtr = Marshal.AllocHGlobal(Marshal.SizeOf(cbmBam));
Marshal.Copy(sector, 0, cbmBamPtr, Marshal.SizeOf(cbmBam));
cbmBam = (CommodoreBAM)Marshal.PtrToStructure(cbmBamPtr, typeof(CommodoreBAM));
Marshal.FreeHGlobal(cbmBamPtr);
sbInformation.AppendFormat("Directory starts at track {0} sector {1}", cbmBam.directoryTrack,
cbmBam.directorySector).AppendLine();
sbInformation.AppendFormat("Disk DOS type: {0}",
Encoding.ASCII.GetString(BitConverter.GetBytes(cbmBam.dosType)))
.AppendLine();
sbInformation.AppendFormat("DOS Version: {0}", Encoding.ASCII.GetString(new[] { cbmBam.dosVersion }))
.AppendLine();
sbInformation.AppendFormat("Disk ID: {0}", cbmBam.diskId).AppendLine();
sbInformation.AppendFormat("Disk name: {0}", StringHandlers.CToString(cbmBam.name, Encoding))
.AppendLine();
XmlFsType.VolumeName = StringHandlers.CToString(cbmBam.name, Encoding);
XmlFsType.VolumeSerial = $"{cbmBam.diskId}";
}
information = sbInformation.ToString();
}