/// <summary>
/// Remove the handshake string from the buffer.
///
/// On entry and exit, "position" is the #of bytes in the buffer.
/// </summary>
internal static void consumeHandshake(ByteBuffer buf)
{
// in theory, nothing else can have arrived, so this is overkill
buf.flip(); // limit<-posn, posn<-0
buf.position = mHandshake.Length;
buf.compact(); // shift posn...limit, posn<-pending data
}