C++ Winsock API how to get connecting client IP before accepting the connection?

Question

I am using the Winsock API (not CAsyncSocket) to make a socket that listens for incoming connections.

When somebody tries to connect, how can I get their IP address

Answer 1

SO_CONDITIONAL_ACCEPT socket option. Here

Also, pretty sure it's available in XP and Server 2003, not just Vista.