[PATCH 0/1] MR3878: server: Return WSAEOPNOTSUPP on listen() if the socket's type is SOCK_DGRAM

[Ally Sommers (＠dropbear)]

On Windows, `listen()` throws `WSAEOPNOTSUPP` when provided with a `SOCK_DGRAM` socket. Wine currently only throws `WSAEOPNOTSUPP` if the socket is bound; otherwise it throws `WSAEINVAL`. This patch modifies the `IOCTL_AFD_LISTEN` case in wineserver's `sock_ioctl()` throw `WSAEOPNOTSUPP` if it's passed an unbound `SOCK_DGRAM` socket.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/3878