Note what Fibre Channel spec documents this protocol.

Note what Fibre Channel spec documents this protocol.

Don't assign the const pointers passed to hash routines to non-const
pointers.

Don't assume that strings the spec says are null-terminated are
necessarily null-terminated in the packet - use "tvb_strsize()" to find
the length of the purported null-terminated string; it'll throw the
appropriate exception if no null is found.

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