Some time ago, I wrapped some of the code from the HOTP toolkit into a
modular client/server solution, which I've decided to release here:
http://www.dynalogin.org/
APR was chosen as part of the project; mainly because I had some
experience with it from the Ganglia project, and it solves a number of
problems for a C programmer.
I believe the licensing is compatible with dynalogin (GPL v3) - if
anyone has any feedback or concerns, it is most welcome.
Thanks to all those who have contributed to APR and provided useful
building blocks for this project.
Regards,
Daniel