The GGZ Gaming Zone server ggzd is able to reject weak passwords using the cracklib or omnicracklib libraries. Omnicracklib has been written from scratch and has been designed to not repeat the functionality and API restrictions that cracklib has. Up until now, this small library has just been sitting in GGZ SVN without any chance to let people pick it up and suggest improvements. Now, more information and the download is easily possible on the omnicracklib website.