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John W. Baxter (jwblist@???) said, in message
<BB7CD572.4A68%jwblist@???>:
>
> With the increased need to verify things, I'm seeing lots of regular
> expressions posted here recently whose task is to recognize "IP address" vs
> "not IP address".
>
> Wish list item (priority: nice to have, as opposed to must have):
>
> A predicate we could use in the general form
>
> isIPaddress:<something>
As a quicky, you could have this by jumping into perl (if compiled in):
In /etc/exim/exim.pl:
sub isipaddr
{
return ((/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/)
&& ($1 >= 0) && ($1 <= 255)
&& ($2 >= 0) && ($2 <= 255)
&& ($3 >= 0) && ($3 <= 255)
&& ($4 >= 0) && ($4 <= 255)) ? "yes" : "no";
}
In exim.conf:
perl_startup = do '/etc/exim/exim.pl'
To test:
${perl{isipaddr}{$some_variable}}
Cheers,
Alun.
p.s. The formatting of that code was nice when it left here :-)
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Alun Jones auj@???
Systems Support, (01970) 62 2494
Information Services,
University of Wales, Aberystwyth
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