run MailScanner in foreground (non-debugging)

[Mariano Absatz]

Hi Julian,

it'd be nice to be able to give MailScanner an option to run in the
foreground so it can be controlled by something like daemontools supervise
(see http://cr.yp.to/daemontools.html
http://cr.yp.to/daemontools/supervise.html and
http://cr.yp.to/daemontools/svc.html ). I also know of high availability
clustering software that also requires that managed daemons run in the
foreground.

I think it should be a matter of not calling ForkDaemon() if this option is
given (but somehow setting "$SIG{'CHLD'} = \&Reaper;", anyway)... so the
'parent MailScanner' is the original one (and not is child) and the children
are directly forked by it...

Not closing stdout/stderr also allows us to call something to capture any
output from the process and log it somehow (see
http://cr.yp.to/daemontools/multilog.html ). This would help capturing some
errors that, up to now I had to chase manually inserting Log calls.

What do U think?

Regards.

--
Mariano Absatz
El Baby
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Give me ambiguity or give me something else.