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Winsock packet sniffing in the bacground/callback

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Hi, I have a little program that receive the packets now, the only problem it can only examin then in a cycle. Its no good: repeat BYTES = recvfrom(sniffer,Buffer^,65536,0,0,0); //Eat as much as u can ProcessPacket(Buffer, BYTES); until ENDSIGNAL its a windowed application. When this repeat-until running, my app doesn't appears. How to set up the winsock to get the packets with a callback routine?

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The Forum FAQ points to some tutorials you can try. I would recommend against using WSAAsyncSelect(), and instead recommend setting a window timer, and using select() to see which sockets are readable inside that poll.

Another option is using something like MsgWaitForMultipleObjects() with the socket as one object, if compatibility with DOS-based Windows isn't necessary.

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