allowing shell users to change passwords

Does anyone else here have a need to allow shell users to change their imap/pop3 passwords? I came up with a little thing that works similarly to regular passwd(1), dovepasswd, which can be found at https://github.com/DavidGriffith/dovepasswd. It does the job for me and I'd love for other people to take a look and give me some feedback.

-- David Griffith dave@661.org

A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?