[brynet]

> getaddrinfo() is the way to resolve names on Linux and I suspect the *BSDs.

At least on OpenBSD, all classical/standard DNS functions (getaddrinfo/gethostbyname/...) are wrappers around OpenBSD's libc asr implementation, written by Eric Faurot.

https://man.openbsd.org/man3/asr_run.3

https://github.com/openbsd/src/tree/master/lib/libc/asr