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c++tcpconnectioninterprocess

C++ application: Is it possible to pass accepted TCP connection from one process to another?

So I wonder - is it possible to pass accepted TCP connection (on Windows or Unix like OS) from one process to another? Here the point is to pass connection - not data in a way a proxy app would.

Solution

  • On Windows, use WSADuplicateSocket, pass the filled in WSAPROTOCOL_INFO to the other process, use WSPSocket to recreate a socket.

    On unix-like OS'es this is possible using the sendmsg() system call. libancillary abstracts this for you.