I was using Paul Gregg's checkpoppasswd.c to authenticate
POP3 users with a single-system-user id. The program used
a linear search to find a user; this could become inefficient
when the user base is large. Also, it could not resolve
two different users at different domains using the same login
name like the case "[EMAIL PROTECTED]" and " [EMAIL PROTECTED]".
I made some simple modifications to the program so that
a PostgreSQL database ( which supposedly uses a B-tree
to perform a search ) is used to do the authentication;
search based on the username and the full hostname is performed.
Interested users can obtain the source code of the program at
http://www.csusb.net/free/qmail/checkpass.c.gz
Regards,
Tong
