Yes, there is. I'm not just making this up. I've gotten takes from "musl people", including Rich Felker, that this was a deliberate choice, and that not only is musl's behavior of pretending that truncated UDP responses are valid acceptable, but that it's somehow better (maybe for performance?) --- that you can always serve "getaddrinfo" off of just the truncated UDP result. Which is, of course, false.

There is a weird thing going on; maybe you can relay this back to the #musl channel you're talking on, and they can keep discussing.

The functionality was explicitly not added by the developer.

> My choice not to do TCP in musl's stub resolver was based on an interpretation that truncated results are not just acceptable but better ux - not only do you save major round-trip delays to DNS but you also get a reasonable upper bound on # of addrs in result.

https://twitter.com/RichFelker/status/994629795551031296

Maybe he is willing to consider it now, I don't know.