Kevin A. Noll wrote:
>
> I know this should be easy to do, but I can't find it written down in
> anything I can readily find...
>
> I'm trying to decode a packet that has TLVs at the end of it. One of the
> possible TLVs is a "NULL" TLV, which is simply one or more bytes with the
> zero value. However, if it's any other kind of TLV, it is likely to start
> with a zero and then be followed by another value that indicates the actual
> type.
>
> How do I check for that second byte without reading past the end of the
> packet buffer?
How does the code that receives one of these packets check for it?
("It is likely" makes it sound as if this would be a heuristic. The
actual recipient of one of these packets doesn't have to use a
heuristic, does it?)
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