Support for IPv6

[OxySynth]

I have to access and run the server over IPv6 because of DS-Lite and Carrier-Grade NAT. I would like to use this tool to check my API connectivity because it seem IPv6 support is currently broken and the server just can't access the API.
I have tried the 64 bit prefix-len global address and the local address, I get the following error when running
python3 sfcheck.py fe80::be24:11ff:fee9:5f2b

Traceback (most recent call last): File "/home/steam/SatisfactoryTest/SF-Tools/sfcheck.py", line 141, in <module> main(host, port, verbose) File "/home/steam/SatisfactoryTest/SF-Tools/sfcheck.py", line 106, in main response = probeServer( address, port ) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/steam/SatisfactoryTest/SF-Tools/sfcheck.py", line 55, in probeServer UDPClientSocket.sendto( msgToServer, ( srvAddress, srvPort ) ) socket.gaierror: [Errno -9] Address family for hostname not supported

[dopeghoti]

You can try altering line 54 of sfcheck.py to say family=AF_INET6 rather than family=AF_INET to see if that works in your case. Give it a try, and if it works I will add an option to explicitly test using IPv6.

[dopeghoti]

@OxySynth actually, I went one better. When you have time, check out the IPv6 branch, and give it a few tests. My IPv6 connectivity at home is, at best, dodgy, but I was able to test it a couple times successfully. Give it a go and if it seems to work, I'll merge it into main.