fix dual-stack ipv6 listening on windows, add listen addr option #89
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According to windows document, the sockets only operates over the IPv6 protocol by default, so we need to modify the socket before using it.
Also
--listen-addr
option is added to be able to bind on a certain address, default is [::].Tested on win10 and linux.
Refs:
https://learn.microsoft.com/en-us/windows/win32/winsock/dual-stack-sockets
https://docs.rs/tokio/1.29.1/tokio/net/struct.TcpSocket.html
https://docs.rs/socket2/latest/socket2/struct.Socket.html#method.set_only_v6