Re: Libpcap

["Gianluca Varenni" <gianluca.varenni () cacetech com>]

What do you mean by "it doesn't work correctly"?

1. compilation problems?
2. linking problems?
3. the application runs but fails to list the adapters?
4. the application runs,  you can open the adapter but you dont capture any 
packet?
5. the application runs and captures but it eventually crashes?

GV

----- Original Message ----- 
From: "Chris Davies" <cjd () slowglass com>
To: <tcpdump-workers () lists tcpdump org>
Sent: Thursday, July 16, 2009 3:13 AM
Subject: [tcpdump-workers] Libpcap


> Trying to get libpacp to work in 32 bit mode on 64 bit machines.
>
>
>
> I have a program that uses libpcap to snoop on packets for the purposes of
> monitoring.
>
> It works very well when compiled on a 32 bit Linux machine and run on a 32
> bit Linux and when 64 bit Linux machine and run on a 64 bit Linux.
>
> However it does not work correctly if I run the 32bit binary on a 64 bit
> Linux box. Is there something special I should be doing.
>
>
>
> A simplified segment of my start code is
>
>    pcap_t* handle = pcap_open_live(dev, BUFSIZ, 1, 1000, errbuf);
>
>    pcap_set_buffer_size(handle,bufSize);
>
>   pcap_compile(handle, &fp, "src port 80",1, net);
>
>   pcap_setfilter(handle, &fp);
>
>   pcap_loop(handle, -1, got_packet, (u_char*)handle);
>
>
>
> Is there anything special I should be doing to get it to work on 64 bit
> platforms
>
>
>
> Chris Davies
>
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