libdns is my 're-invention of the wheel' DNS client resolver
library, written entirely in C with no external dependencies.
Supports UDP as transport protocol only (Meaning, no Zone Transfers).
I even wrote a man page.
Supplied with an example client application: dnsq.
This code is presented nearly as-is from when it was written back in 2003. The world and my abilities have come a long way in over 16 years...