WSADuplicateSocket used to implement ssh session multiplexing?

[Jeff Hardy]

I understand that windows does not allow sending open file descriptors
over sockets and that is the reason that session multiplexing through
a control master doesn't work. The documentation for
WSADuplicateSocket states that the resulting WSAPROTOCOL_INFO
structure can be sent through an IPC to a target process and that the
target process can then call WSASocket with that info and the effect
is a shared socket. If the sending process closes the socket, then the
target has the connection to itself.

 Is this essentially the same as sending an open file descriptor
through a socket? I am of course assuming that the fd that is being
sent is for a socket.

Or am I really missing the big picture?

-jeff hardy

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