[ragel-users] Ragel and protocol analysis

[Horacio Sanson]

Once I tried to implement a transport protocol parser with ragel but
since ragel works with text strings any binary protocol (TCP, UDP, IP)
would be difficult to parse. For example how would you match a TCP or
IP header using text strings?

In the other hand text based protocols (RTSP, SDP, etc..) are a LOT
easier to do with Ragel.

regards,
Horacio

On Sat, Jan 24, 2009 at 8:30 AM, Adrian Thurston <thurston at complang.org> wrote:
> It's certainly possible:
>
> http://www.zedshaw.com/tips/ragel_state_charts.html
>
> Keep in mind though that this is not what ragel was designed for. It was
> made for compiling regular languages with embedded actions to C code.
>
> -Adrian
>
> Alexis Letessier wrote:
>> Hello,
>>
>> I am new to this mailing list and i am also discovering ragel.
>>
>> I would like to know if protocol analysis is possible with ragel?
>>
>> For example, would it be possible to feed ragel with tcpdump or tshark
>> ouput and validate it against a tcp state diagram ?
>> http://www.andreadrian.de/c-workshop/tcp-state-diagram.gif
>>
>> Regards
>>
>> Alexis
>>
>>
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