On Sat, 26 Feb 2000, Marc Haber wrote:
> Is there a reason why this is not natively supported by exim in the
> form I'd like to see?
You tell me how to implement it, and I'll think about it! :-)
Remember: DBM/cdb/NIS/etc files are keyed files. They are not scanned in
order.
> Maybe I am missing something, and I assume one
> would have to do up to 33 database lookups to verify if an address is
Exactly.
> listed in a host list that way, but even that seems more elegant than
> having 33 lookup entries in the host list itself.
> Maybe one could have a net<number-range>-<searchtype> entry like
> "net24-28-lsearch" if one knows that only /24, /25, /26, /27 and /28
> entries are in the database file?
That is just a shorthand for
net24-dbm;/file : net25-dbm/file : ....
It would still do 5 probes of the file for every address. (So for an
lsearch file it would read it 5 times.)
If, as you say, your list is never going to be more than a screen long,
then I would just use an interpolated file, and forget about using a
lookup. Then it really will just scan the list once. To be less
efficient than the multiple probes, I suspect the list would have to be
quite long.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
