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macOS Getting Network Packets Data
- Thread starter ruhi
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libpcap is the usual library used to do it from C. That will work for a Cocoa app though you migth find someone has done an ObjC wrapper already.
HTH,
Andrew
It depends how reliable you want the packet sniffer to be. If you just want to capture TCP packets before they reach the application then you can probably use the solutions provided.
If you want to capture raw packets as soon as they leave the hardware interface then you need to start mucking around with kernel extensions (which I am currently stuck with
).
If you want to capture raw packets as soon as they leave the hardware interface then you need to start mucking around with kernel extensions (which I am currently stuck with
).
If you just want to view traffic using an existing app, Interarchy has a Traffic-viewing feature. You can limit it to a port, or it can show traffic on all ports.
http://www.interarchy.com/
Interachy does much more than view traffic. You can ignore those features.
http://www.interarchy.com/
Interachy does much more than view traffic. You can ignore those features.
If you're not a cli friend, going straight for TCPDump, there are quite a few front-ends around this.
Free ones, and the ones where the developer did a great job are the X11 port (bundled as an OSX app) of Wireshark, that is gigantic and amazing.
There is another one called CocoaShark or something. A simple search for sniffer on macupdate will get you there
Free ones, and the ones where the developer did a great job are the X11 port (bundled as an OSX app) of Wireshark, that is gigantic and amazing.
There is another one called CocoaShark or something. A simple search for sniffer on macupdate will get you there