This is a ground-up rebuild of both the libnss-mysql and pam-mysql projects, targetting exclusively Linux and MySQL 5.x or higher to simplify the decade- old code and clean it up using modern practices.

The configuration file, while similar, is wildly simplified to speed parsing by requiring entire name/value pairs to be on a single line. It supports all standard line-ending types (DOS, linux, Mac) and will attempt to return sane error messages including line/character positions. Also all 'values' are now limited to a single 4K page (including terminating byte, to 4095 characters) so if you need a more complex query to assemble one of the views you'll need to setup an appropriate 'CREATE VIEW' construct instead.

Also the example is geared to require the MySQL-tallied UIDs/GIDs to stay at all times identical, I.E. there is only a single unique 'ID' field, returned for queries of both the UID and GID. Arbitrary additional GID membership all works still, but you cannot have a separate UID/GID by default.