public static long WriteTo(this Stream inStream, Stream outStream)
{
var memoryStream = inStream as MemoryStream;
if (memoryStream != null)
{
memoryStream.WriteTo(outStream);
return memoryStream.Position;
}
var data = new byte[4096];
long total = 0;
int bytesRead;
while ((bytesRead = inStream.Read(data, 0, data.Length)) > 0)
{
outStream.Write(data, 0, bytesRead);
total += bytesRead;
}
return total;
}