* Next, read the length. The first byte contains the length of
* the length. If bit 8 is set, the length is the long form,
* otherwise it's the short form. We don't allow a length that's
* Next, read the length. The first byte contains the length of
* the length. If bit 8 is set, the length is the long form,
* otherwise it's the short form. We don't allow a length that's