On 2006-11-25 Javier Fernández-Sanguino Peña <[EMAIL PROTECTED]> wrote:
> On Sat, Nov 25, 2006 at 09:47:21AM +0100, Andreas Metzler wrote:
>> On 2006-11-25 Javier Fernández-Sanguino Peña <[EMAIL PROTECTED]> wrote:
>>> Package: exim4-config
>>> Version: 4.63-10
>>> Priority: wishlist
>>> Exim4-config generates /etc/mailname automatically on postinst, based on the
>>> information provided by the user. It fails, however, to remove this
>>> configuration file if the package is purged from the system.
>> That is because /etc/mailname is a shared configuration file. Multiple
>> installed programs are using it, removing just *one* of them (exim)
>> must not break the others.
> What other programs use this file (in a standarda Debian installation)
> besides the standard mail-transport-agent (i.e exim4)? In my system's
> configuration files I only see emacs using this as well as PostgreSQL's
> reusing that information for SSL certificate generation in postinst (although
> it behaves properly if /etc/mailname does not exist)
Hello,
No idea. But it does not matter a lot if any package in a *standard*
Debian installation does, it only matters if packages in Debian can
rely on /etc/mailname on being generated by the first package
generating it and if *any* packge at all uses this.
> AFAIK only different MTAs should use this file and they should behave
> properly if the file has been removed due to a purge, as policy 11.6
> dictates. Ie, this should be ok:
No, not only MTAs, any package generating a "From:"-line.
<quote>For example, in this situation the inn package<unquote>
^^^
Especially stuff generating *usenet* messages. Check e.g knews,
postilion, slrn.
> - exim4-config gets installed and configured (/etc/mailname gets created)
> - exim4-config gets purged (automatically generated /etc/mailname gets
> removed as well as the debconf info)
> (some time later...)
> - alternate MTA (sendmail, postfix, whatever) gets installed
> --> The alternate MTA should create (on the basis of policy 11.6)
> /etc/mailname as it does not exist in the system
> This is perfectly compatible with:
This ignores the fact that packages which are not providing mta can
still generate and send outgoing mail (by smtp). Policy does not limit
the scope of /etc/mailname to MTAs and packages using MTAs (by the
/usr/sbin/sendmail interface).
[...]
> From my reading of policy 11.6 what I'm suggesting is perfectly compatible
> (if implemented properly, which might be tricky) with having a shared
> configuration file across mail-transport-agents in Debian.
The point is that it is not just shared among MTAs and packages
depending on MTAs.
cu andreas
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