Support multiple address resolution in DNS requests

[sarchar]

Add two new functions to the IP class that returns all addresses/aliases associated with a given address.

This is a cherry-pick merge from 010a343 which was merged in 2.1, and has been updated to build with the latest code.

This merge adds two new methods IP.resolve_hostname_addresses and IP.get_resolve_item_addresses that returns a List of all addresses returned from the DNS request.

[fire]

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[Faless]

Looks great! 👍

[akien-mga]

Thanks! And congrats for your first merged Godot contribution 🎉

[YuriSizov]

EDIT: Opened an issue #49261, original comment below:

---

This PR breaks file downloading (e.g. export templates downloading in the editor). The download stops at an unassuming status STATUS_DISCONNECTED:

If use_threads is disabled, the status changes to STATUS_RESOLVING, but it still stops at that and never downloads anything.

Code that doesn't work:

	download_templates->set_download_file(EditorPaths::get_singleton()->get_cache_dir().plus_file("tmp_templates.tpz"));
	download_templates->set_use_threads(true);

	Error err = download_templates->request(p_url);

But requests like this do work:

	request_mirror->request("https://godotengine.org/mirrorlist/" + p_version + ".json");

Any ideas?

[akien-mga]

I had a quick go at cherry-picking this + #49269 for 3.x but there's a few conflicts to handle, and even after fixing them I'm not sure that the feature actually worked properly (the Templates tab in the project manager would freeze). So I'd suggest making a dedicated PR backporting both commits if you're interested in having this feature in 3.4+ too.

[sarchar]

I had a quick go at cherry-picking this + #49269 for 3.x but there's a few conflicts to handle, and even after fixing them I'm not sure that the feature actually worked properly (the Templates tab in the project manager would freeze). So I'd suggest making a dedicated PR backporting both commits if you're interested in having this feature in 3.4+ too.

#49020 has that commit; admittedly it isn't up to date with the MutexLock fix (I can do that quickly). Is that one still good enough?

[akien-mga]

#49020 has that commit; admittedly it isn't up to date with the MutexLock fix (I can do that quickly). Is that one still good enough?

Ah yes, please update it to address feedback from this PR if relevant, and include the regression fix.