[conradev]

If you do need the lower-level control, Apple does still recommend `getaddrinfo`. It handles NAT64 translation for IPv6-only carrier networks:

https://developer.apple.com/library/archive/documentation/Ne...

[simscitizen]

That’s not the current documentation, as evidenced by the “archive” in the URL.

If you want to stay at a lower level the recommendation these days is to use Network.framework. If you want something higher level then use CFNetwork (probably through the classes exported by Foundation like NSURLSession).

[conradev]

I actually found it linked from here, which seems current: https://developer.apple.com/support/ipv6/

It is not best practice to use `getaddrinfo` for DNS resolution, for sure. But it is best practice to use it before connecting to an IP address directly because that address may need to be translated.

[krackers]

I'm actually surprised they suggest getaddrinfo() directly over the async CF wrapper.