Choose correct address family for UDP socket when `udp-bind` is not specified explicitly

mullvad / udp-over-tcp

Proxy UDP traffic over a TCP stream

Apache License 2.0

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Choose correct address family for UDP socket when `udp-bind` is not specified explicitly #28

Closed dlon closed 2 years ago

dlon commented 2 years ago

udp-bind defaults to 0.0.0.0 for tcp2udp. This means that AF_INET is used as the address family even if the destination is an IPv6 address. This PR fixes this by binding the socket to :: by default if the destination is an IPv6 address.

This change is