Call this member function to get the local name for a socket (handles IPv6 addresses).
Nonzero if the function is successful; otherwise 0, and a specific error code can be retrieved by calling GetLastError. The following errors apply to this member function:
WSANOTINITIALISED A successful AfxSocketInit must occur before using this API.
WSAENETDOWN The Windows Sockets implementation detected that the network subsystem failed.
WSAEFAULT The lpSockAddrLen argument is not large enough.
WSAEINPROGRESS A blocking Windows Sockets operation is in progress.
WSAENOTSOCK The descriptor is not a socket.
WSAEINVAL The socket has not been bound to an address with Bind.
This call is the same as CAsyncSocket::GetSockName except that it handles IPv6 addresses as well as older protocols.
This call is especially useful when a Connect call has been made without doing a Bind first; this call provides the only means by which you can determine the local association which has been set by the system.