private void ReadNextPacket(int len)
{
inBuffer = inBufferRef.Target as byte[];
if (inBuffer == null || inBuffer.Length < len)
{
inBuffer = new byte[len];
}
MySqlStream.ReadFully(baseStream, inBuffer, 0, len);
}
// Read MySQL packet
// since SSPI blobs data cannot be larger than ~12K,
// handling just single packet is sufficient
private byte[] ReadData()
{
byte[] buffer;
MySqlStream.ReadFully(stream, packetHeader, 0, 4);
int length = (int)(packetHeader[0] + (packetHeader[1] << 8) +
(packetHeader[2] << 16));
seq = packetHeader[3] + 1;
buffer = new byte[length];
MySqlStream.ReadFully(stream, buffer, 0, length);
return(buffer);
}
private void PrepareNextPacket()
{
MySqlStream.ReadFully(baseStream, lengthBytes, 0, 7);
int compressedLength = lengthBytes[0] + (lengthBytes[1] << 8) + (lengthBytes[2] << 16);
// lengthBytes[3] is seq
int unCompressedLength = lengthBytes[4] + (lengthBytes[5] << 8) +
(lengthBytes[6] << 16);
if (unCompressedLength == 0)
{
unCompressedLength = compressedLength;
zInStream = null;
}
else
{
ReadNextPacket(compressedLength);
MemoryStream ms = new MemoryStream(inBuffer);
zInStream = new GZipStream(ms, CompressionMode.Compress);
}
inPos = 0;
maxInPos = unCompressedLength;
}