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dweekly | 2 months ago

Good points, all - there is a lot of subtlety here.

CFHostStartInfoResolution is deprecated, no? https://developer.apple.com/documentation/cfnetwork/cfhostst...:)

That leaves us with DNSServiceGetAddrInfo? https://developer.apple.com/documentation/dnssd/dnsservicege...:) or some kinda convoluted use of Network and NWEndpoint/NWconnection with continuations could do the same?

discuss

frumplestlatz|2 months ago

Oh yes, good catch. Yeah, you want to use `NWConnection` (or one of the other higher-level supported networking APIs), which raises another issue with doing custom DNS resolution. You need those API's connect-by-name semantics to get VPN-on-Demand:

https://developer.apple.com/documentation/technotes/tn3151-c...