Network fetching

[tofiffe]

Hi, I was wondering if and how it is possible to fetch network data like Nighthawk does, I don't need anything special really, what flies through the sockets.

Only possible way I could think of was to set the DNS server to localhost and to listen on those ports, but that would work if I knew the ports.

[LB]

Have you looked into packet sniffers?

[tofiffe]

no I did not, what are they? I was working with sockets, but that was about it, but don't know how to sniff packets.

[LB]

https://en.wikipedia.org/wiki/Packet_sniffer

[tofiffe]

from what I get here the packet sniffers gather information from the entire network, while I'd like to know how to do this on a pc that the program is running, also I seem to have given the wrong example for what I'd like to do.

[LB]

tofiffe wrote:

from what I get here the packet sniffers gather information from the entire network

Yes, you have a highway full of cars driving by.

tofiffe wrote:

I'd like to know how to do this on a pc that the program is running

You're only interested in cars that come from one direction.

What's the problem? Just ignore the other packets that aren't from that computer.

[tofiffe]

is that really the best way to do it? I've even thought of only gathering events going outside.

Also I've tried googling stuff like that but could not find a proper pseudocode/actual code, mind giving me a little hint?

[LB]

I have never done anything related to packet sniffing, I'm just telling you what I know.

Just a quick search and I found dozens of relevant open-source projects (C/C++):
https://github.com/search?q=packet+analyzer&ref=cmdform