These are some things I've written in the past for use with LPRng. Note that I've not had cause to use LPRng for quite a while now, and so I'm no longer actively working on this code. If someone else would like to take over work on these projects, I'd be happy to pass the torch. Drop me a piece of e-mail if you'd like to volunteer.
Note also that these have not been tested with recent versions of Solaris (newer than Solaris 2.6). Your mileage may vary.
Finally, note that all of the files here are COPYRIGHTED MATERIAL, and YOU ASSUME ANY AND ALL RISK FOR THEIR USE OR ANY INABILITY TO USE THEM! If you don't feel comfortable using software without the ability to hold someone else responsible, then don't download any of the software from this page!