Bug in the [non-]propagation of control messages

[Russ Allbery]

Julien ÉLIE <julien at trigofacile.com> writes:

> There is a bug when I send a newgroup control article to local.example:
> if the newsfeeds pattern of a site is "*, at local.*", the control article
> is sent to that site!  Such a leak is not very good...

What was the control message for?  If it wasn't for a local.* group, that
sounds correct to me.  Control messages should propagate according to the
superset of the affected group and the Newsgroups header.

The best way to keep control messages local to a site is with a
distribution.

> I tried to fix the bug (and, meanwhile, to add the support of accepting
> checkgroups posted to newsgroups not carried -- which could be of help
> for instance to the upstream server for ftp.isc.org).

I don't think the checkgroups part is right.  That code requires that
there be an argument to the control command specifying the affected group,
and it does article propagation based on that argument.  checkgroups takes
no argument, so that doesn't work.

-- 
Russ Allbery (rra at stanford.edu)             <http://www.eyrie.org/~eagle/>

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