courier Information

courier-imap is the IMAP engine from the courier mail server. It provides POP3, POP3-SSL, IMAP, and IMAP-SSL services for my mail servers.

Early versions of courier-imap included their own authentication routines as part of the code. When version 4 was released, the authentication code was split into a separate package called courier-authlib. This allowed people who were familiar with non-standard authentication methods to release updates to the authentication code without having to update courier-imap itself.

HOWTO pages relating to courier-imap

Running courier-imap under daemontools

Running courier-authlib under daemontools

Running courierpassd under daemontools

Building Courier-IMAP RPMs without FAM

Patch for courier-authlib-0.59.3

I have encountered a problem installing courier-authlib-0.59.3 on several CentOS 4 and CentOS 5 machines. The problem is in authvchkpw.c, the function auth_vchkpw_login() is called from auth_vchkpw(), before being declared- which means that at the time the function is called, the compiler doesn't know the types of the paramaters. The compiler makes a guess, but that guess ends up being incorrect.

At first I thought this might be something relating to the versions of gcc which are used on CentOS, but when I realized that I could fix it by simply defining the function before calling it (which is something I always do in my own code anyway) I figured it made more sense to just switch the auth_vchkpw_login() and auth_vchkpw() functions around.

The patch below fixes the issue by reversing the order of the two functions within the file. It also updates the courier-authlib.spec file so that the patch is applied while building RPM files.

To use the patch to build RPMs, download the patch and the original courier-authlib-0.59.3 source code package, into your ~/rpm/SOURCES directory. Extract the courier-authlib.spec file from the original source package, and move it to your ~/rpm/SPECS directory. Then build the package using a normal "rpmbuild -ba" command on the .spec file. The process looks like this:

$ cd ~/rpm/SOURCES
$ wget http://prdownloads.sourceforge.net/courier/courier-authlib-0.59.3.tar.bz2
...
$ wget http://qmail.jms1.net/courier/courier-authlib-0.59.3-auth_vchkpw_login.patch
...
$ tar xjf courier-authlib-0.59.3.tar.bz2 courier-authlib-0.59.3/courier-authlib.spec
$ mv courier-authlib-0.59.3/courier-authlib.spec ../SPECS
$ rmdir courier-authlib-0.59.3
$ cd ../SPECS
$ rpmbuild -ba courier-authlib.spec

Copyright 1995-2024 John M. Simpson KG4ZOW (email) (PGP key)
Last updated 2008-08-08 03:43:32 +0000