I wish to make a simple program that dumps the entries in my sendmail access.db.

I fired up DB_File, and discovered that it wouldn't work. It fails silently (ie doesn't populate $!). If I have O_CREAT on, it wants to make a new db rather than read it -- it reports this by populating $! with "file exists."

I have a testing.db that I created with DB_File (and can read with no trouble) and my sendmail.db that was created with 'makemap hash'. Using the dbinfo app that comes with DB_File, I turned up this:

testing file db_file.db...

File Type:              Berkeley DB Hash file.
File Version ID:        7
Built with Berkeley DB: 3.1.x -> 4.0.x
Byte Order:             Little Endian
Magic:                  061561
Encryption:             Not Supported
[download]

testing file sendmail.db...

File Type:              Berkeley DB Hash file.
File Version ID:        8
Built with Berkeley DB: 4.1.x or greater
Byte Order:             Little Endian
Magic:                  061561
Encryption:             Disabled
[download]

I don't really know what those version numbers are. Is my problem a libdb version mismatch? Is there a better cpan module for reading these? Am I missing something simple?

Thanks.