Unix Programming - Re: My simple tcp sniffer sniffs only incoming packts and not outgoing

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Re: My simple tcp sniffer sniffs only incoming packts and not outgoing

Nils O. Selåsdal

2006-04-15, 10:01 pm

Barry Margolin wrote:
> In article <1145114847.133884.43090@v46g2000cwv.googlegroups.com>,
> "The Dark Free Soul" <thedarkfreesoul@gmail.com> wrote:
>
>
> Because read() is used to read things that you receive, and you don't
> receive your own outgoing packets.
>
> If you want to write a sniffer, "man bpf".
>

Or use libpcap which has an easy user interface for packet capturing,
as well as beeing quite portable.

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