[exim] Configuring Exim and a commandline antivirus scanner

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Autor: Manuel Molina Cuberos
Data:  
Dla: Exim users mailing list
CC: Lista de Adm. Correo
Temat: [exim] Configuring Exim and a commandline antivirus scanner

Hello all!

I'm trying to configure the regular expressions to make Exim work with
ESET Security suite.
It was all fine, but I detected that I have to avoid some patterns.

The scanner output for a virus is:

file-20030201-161700-14842 -> MIME*: virus="VBS/Haptime.E worm"*

The first configuration I made was:

av_scanner = cmdline:\
             /usr/bin/esets_cli --subdir %s:\
           * :: virus= : virus="(.+)"*


It was ok, and Exim was stopping the viruses, but then, I detected that
I have to avoid some output patterns from the antivirus:

file-20030202-203146-10246 -> MIME -> part000.txt*: virus="is OK"*

that means there's _no virus_ on the file.

Here begins my problem with regular expressions. I tested the following
regex with pcretest, that worked:

# pcretest
PCRE version 6.7 04-Jul-2006

re> "virus=\"(?!is OK)"
data> virus="VBS/Haptime.E worm

0: virus="
data> virus="is OK

No match

Then, I think I failed to put it on exim4.conf to work, because

av_scanner = cmdline:\
              /usr/bin/esets_cli --subdir %s:\
             :: virus="(?!is OK) : virus="(.+)"


doesn't work. It can't even detect any virus.

Can you give me a hand to correct the expression ?

Thanks in advance,

--
Manuel Molina Cuberos

Administrador de Sistemas
Área Técnica

T-Online Telecommunications Spain, S.A.U
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