/// <summary>
/// Read from a stream and get partition table entry, if possible
/// </summary>
/// <param name="reader">BinaryReader representing the input stream</param>
/// <returns>Partition table entry object, null on error</returns>
public static PartitionTableEntry Read(BinaryReader reader)
{
PartitionTableEntry entry = new PartitionTableEntry();
try
{
entry.Offset = reader.ReadUInt32();
entry.Length = reader.ReadUInt32();
return(entry);
}
catch
{
return(null);
}
}
/// <summary>
/// Read from a stream and get an NCSD header, if possible
/// </summary>
/// <param name="reader">BinaryReader representing the input stream</param>
/// <param name="development">True if development cart, false otherwise</param>
/// <returns>NCSD header object, null on error</returns>
public static NCSDHeader Read(BinaryReader reader, bool development)
{
NCSDHeader header = new NCSDHeader();
try
{
header.RSA2048Signature = reader.ReadBytes(0x100);
if (new string(reader.ReadChars(4)) != NCSDMagicNumber)
{
return(null);
}
header.ImageSizeInMediaUnits = reader.ReadUInt32();
header.MediaId = reader.ReadBytes(8);
header.PartitionsFSType = (FilesystemType)reader.ReadUInt64();
header.PartitionsCryptType = reader.ReadBytes(8);
header.PartitionsTable = new PartitionTableEntry[8];
for (int i = 0; i < 8; i++)
{
header.PartitionsTable[i] = PartitionTableEntry.Read(reader);
}
if (header.PartitionsFSType == FilesystemType.Normal ||
header.PartitionsFSType == FilesystemType.None)
{
header.ExheaderHash = reader.ReadBytes(0x20);
header.AdditionalHeaderSize = reader.ReadUInt32();
header.SectorZeroOffset = reader.ReadUInt32();
header.PartitionFlags = reader.ReadBytes(8);
header.PartitionIdTable = new byte[8][];
for (int i = 0; i < 8; i++)
{
header.PartitionIdTable[i] = reader.ReadBytes(8);
}
header.Reserved1 = reader.ReadBytes(0x20);
header.Reserved2 = reader.ReadBytes(0xE);
header.FirmUpdateByte1 = reader.ReadByte();
header.FirmUpdateByte2 = reader.ReadByte();
header.CARD2WritableAddressMediaUnits = reader.ReadBytes(4);
header.CardInfoBytemask = reader.ReadBytes(4);
header.Reserved3 = reader.ReadBytes(0x108);
header.TitleVersion = reader.ReadUInt16();
header.CardRevision = reader.ReadUInt16();
header.Reserved4 = reader.ReadBytes(0xCEC); // Incorrectly documented as 0xCEE
header.CardSeedKeyY = reader.ReadBytes(0x10);
header.EncryptedCardSeed = reader.ReadBytes(0x10);
header.CardSeedAESMAC = reader.ReadBytes(0x10);
header.CardSeedNonce = reader.ReadBytes(0xC);
header.Reserved5 = reader.ReadBytes(0xC4);
header.BackupHeader = NCCHHeader.Read(reader, readSignature: false);
if (development)
{
header.CardDeviceReserved1 = reader.ReadBytes(0x200);
header.TitleKey = reader.ReadBytes(0x10);
header.CardDeviceReserved2 = reader.ReadBytes(0xF0);
}
}
else if (header.PartitionsFSType == FilesystemType.FIRM)
{
header.Unknown = reader.ReadBytes(0x5E);
header.EncryptedMBR = reader.ReadBytes(0x42);
}
return(header);
}
catch
{
return(null);
}
}
