On Thu, 29 Jun 2000, Jeffrey Goldberg wrote:
> > Give that man a beer!!
>
> OK. So now the JRH can put in a condition something like
>
> condition = "${if match{$local_part}{:}fail}
>
> in the director (I suspect I have that wrong, but a bit of playing with
> expansions should do it). But is that an time to ask for another feature,
> like
>
> require_file_nolist
>
> which is exactly like require_files, but will not be treated as a colon
> separated list.
Well, that seems a bit OTT; what you really want to do is to double any
colons in the text. The latest Exims (from 3.14) have a substitution
operator. So instead of $local_part you can write
${sg {$local_part}{:}{::}}
(It's called "sg" because it's like Perl's "s" operator with the "g"
option.)
> In general this is a warning that we should all look through our
> configs for all expansions of sender generated strings and see whether
> anyone can do anything nasty by sending something pathological.
Indeed.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
