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Asked: 2026-05-23T14:03:22+00:00

Winsock 2, windows xp sp3. I have a socket, it was previously passed to

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Winsock 2, windows xp sp3.

I have a socket, it was previously passed to the bind() function, now I want to get this information from the socket.
More specifically, I want the port number that the socket was bound to.
All I have is the SOCKET instance.

How would I go about doing this?
The socket is UDP by the way.

My purpose is that I want to create a new raw UDP socket and build the ip header and udp header and tunnel information through the raw socket instead, but I don’t know what to put into the source port because I don’t know what it was bound to.

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1 Answer

  1. Editorial Team

    getsockname() should help you.

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