Hi Assar,

you wrote in <199604071757.TAA00275@assaris.pdc.kth.se>:
> That does not solve the problem.

Yes.

> The hostname can be of any length.

Yes.

> Either make the field variable-length or (my preference)

Mine too.

> just log the IP-address and let last/who/whatever do the reverse mapping.

No, that way has many disadvantages, e.g.:

1.) Reverse resolving is not always possible.
2.) IP address assignments may change.

-- 
Matthias Scheler
tron@lyssa.owl.de