From: Pascal Painparay (pascal.painparaytdf.fr)
Date: Mon Apr 21 2003 - 10:22:01 CDT

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Je suis absent jusqu'au 21/04/03 inclus.
En cas d'urgence, Vous pouvez contacter :
  Christophe Savin au 01 49 15 32 75.

Cdt
Pascal Painparay

>>> snort-users 04/21/03 17:04 >>>

"Michael L. Artz" <dragonoctober29.net> writes:

> Chris Green wrote:
>
>>Finally a use for reading in off stdin
>>
>>(for i in *.cap.gz| do gzip -dc $i; done) | snort -r - <args>
>>
>
> This seems to fail for me on the "breaks" between files with the error:
>
> pcap_loop: truncated dump file
>
> I assume that this has to do with the little header that tcpdump adds
> to the beginning of each file, i.e. I can mergecap them and run them
> through just fine. Is there something that I am missing beyond 'cat
> *.pcap | snort -r -'? Would a newer libpcap solve the problem?

Nah, I just saw a mailing list reply from Guy Harris over on the
tcpdump works mailing list that uses something more akin to

(COUNTER=0;
 for i in *.cap.gz;
 do
    if [ COUNTER -eq 0 ];
        gzip -dc $i
        COUNTER=1;
    else
        gzip -dc $i | dd bs=24 count=0 skip=1
    fi
 done) | snort -r -

>
>
> Snort 1.9.1, fairly stock RH8.0.
>
> -Mike
>
>
>
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--
Chris Green <cmgsourcefire.com>
Laugh and the world laughs with you, snore and you sleep alone.

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