[6810] in RedHat Linux List
Re: Qpopper can't open Bulletin DB.
daemon@ATHENA.MIT.EDU (Jon Klaren)
Sun Dec 1 13:42:32 1996
Date: Sun, 1 Dec 1996 03:19:25 -0800
From: Jon Klaren <jklaren@qualcomm.com>
To: "Lincoln L. Bauer" <lbauer1@sirus.com>
Cc: qpopper@qualcomm.com, redhat-list@redhat.com
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
On Fri, 29 Nov 96 20:52:11 -0500, "Lincoln L. Bauer"
<lbauer1@sirus.com> wrote to <redhat-list@redhat.com>:
> I am having a problem with qpopper 2.2. For the most part, it appears
> to work great. I have set it up to use the Bulletin database to track
> which bulletins a user has already read. However, when more than one
> person is trying to access their pop account, the second person gets
> an "ERR: Can't open Bulletin Database..." From this I surmised
> (possibly incorrectly) that it is a file locking problem.
>
> Just in case anyone else has this problem, I have solved it
> temporarily by not using the bulletin functions of qpopper. That is,
> I did not tell it about a bulletin directory or to use the bulletin db
> when compiling.
>
> Does anyone else have this working?
The bulletin feature uses two different methods to determine which
bulletins a user has already read:
a) keep track of the last bulletin # in the the file ~/.popbull
b) keep track of it in a global hashed db using calls to libdbm (or libndbm).
I have had problems getting the latter to work on Linux, but the former
works just fine. To enable it, simply compile with the option:
-DBULLDIR=\"/var/spool/bulls\" (edit that directory name). Using the
-DBULLDB option will try to use method (b) above.
I'm not sure yet why option (b) doesn't work, but here are my
observations:
I linked with libndbm, and when a pop user starts a session, qpopper
recognizes that there are unread bulletins, and initializes the bulletin
database as bulldb.db (at this point bulldb.pag and bulldb.dir exist but
are empty). After the pop session ends, the bulletin database is left
empty and any subsequent attempt by a user to start a pop session ends
in the "-ERR unable to open bulletin database" message. I am not yet
sure if this is an incompatibility with the Linux and other versions of
libndbm or what.
I've CC'd qpopper@qualcomm.com. Maybe they can shed some light on this.
For their benefit, we're talking about running qpopper2.2 on Red Hat
Commercial Linux.
-Jon
---------
Jon Klaren
San Diego, CA USA
jklaren@qualcomm.com
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