public void ReadFrom(Stream stream)
{
byte[] numArray1 = new byte["PIAFILEVERSION_2.0,CTBVER1,compress\r\npmzlibcodec".Length];
if (stream.Read(numArray1, 0, numArray1.Length) != numArray1.Length)
{
throw new IOException("CTB file format error: Wrong header!");
}
if ("PIAFILEVERSION_2.0,CTBVER1,compress\r\npmzlibcodec" != Encodings.Ascii.GetString(numArray1, 0, numArray1.Length))
{
throw new IOException("CTB file format error: Wrong header!");
}
int num1 = (int)CtbFile.smethod_8(stream);
uint num2 = CtbFile.smethod_8(stream);
byte[] numArray2 = new byte[(IntPtr)CtbFile.smethod_8(stream)];
if (numArray2.Length != stream.Read(numArray2, 0, numArray2.Length))
{
throw new IOException("CTB file format error: Compressed content is too short!");
}
byte[] numArray3 = new byte[(IntPtr)num2];
using (ZlibDecompressStream decompressStream = new ZlibDecompressStream((Stream) new MemoryStream(numArray2)))
{
if (numArray3.Length != decompressStream.Read(numArray3, 0, numArray3.Length))
{
throw new IOException("CTB file format error: Expanded content is too short!");
}
}
int num3 = (int)CtbFile.smethod_0(numArray2, 0, numArray2.Length);
this.method_0(Encodings.Ascii.GetString(numArray3, 0, numArray3.Length));
}
public void WriteTo(Stream stream)
{
byte[] bytes = Encodings.Ascii.GetBytes("PIAFILEVERSION_2.0,CTBVER1,compress\r\npmzlibcodec");
stream.Write(bytes, 0, bytes.Length);
MemoryStream memoryStream1 = new MemoryStream();
this.method_1(new CtbFile.Class1003((Stream)memoryStream1));
MemoryStream memoryStream2 = new MemoryStream((int)memoryStream1.Length);
using (ZlibCompressStream zlibCompressStream = new ZlibCompressStream((Stream)memoryStream2, true))
{
memoryStream1.WriteTo((Stream)zlibCompressStream);
zlibCompressStream.Flush();
}
uint num = CtbFile.smethod_0(memoryStream2.GetBuffer(), 0, (int)memoryStream2.Length);
CtbFile.smethod_7(stream, num);
CtbFile.smethod_7(stream, (uint)memoryStream1.Length);
CtbFile.smethod_7(stream, (uint)memoryStream2.Length);
memoryStream2.WriteTo(stream);
}