The original authors (2002) are Guillaume Valadon <guillaume at valadon.net> and Manu Letellier <manu.letellier at gmail.com>.
After asking Guillaume, he accepted to release part of the library under GPL v2 (see "COPYING"). 
This version is available in <http://guillaume.valadon.net/odns/odns-0.1.tar.gz> and is also the one (as is) found in this repository, marked as version 0.1.

Any version since then (2010) has been improved from this original version by Jehan Hysseo <hysseo at zemarmot point net>.
Jehan is the current maintainer as well.
