apache's TCPmon/tcpdump-like utility ...

Is there anything out there like apache's TCPmon(itor) but written in C or
CPP (not Java)?
..
or how customizable would the utility tcpdump be so that it works
similarly?
..
Basically, you would set a tcpdump-like utility to:
..
1._ only listen to certain ports
2._ only to certain protocols within these (1.) ports otherwise would not
forward the request and only log it as a protocol anomaly/probable security
issue, including the payload in those cases
3._ for messages that have passed 1. and 2. only sniff the request headers
in and the response headers out
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Can you compile tcpdump with options to just do that so that the resulting
executable should be very small?
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it would be just a proxy sniffing the headers not the data payload.
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Thnaks
jw

I am not a clever one. But you are using Linux that can finish your job
by coworking of small program together -- grep. In addition, it is
multiuser, multi-tasking OS. Two tcpdump can run without affecting each
others. Good luck

(E-Mail Removed) wrote:
> Is there anything out there like apache's TCPmon(itor) but written in C or
> CPP (not Java)?
> .
> or how customizable would the utility tcpdump be so that it works
> similarly?
> .

tcpdump was not designed or intended to be a proxy/packet relaying
program. It is simply a command line packing sniffing utility.