Bug#889144: stricter PIDfile handling breaks several daemons

[Sven Hartge]

On Sun, 4 Feb 2018 15:41:37 +0000 Simon Kelley <simon at thekelleys.org.uk>
wrote:

> With my dnsmasq maintainer hat on, the current arrangement looks like this.
> 
> 1) /run/dnsmasq is a directory owned by dnsmasq:nogroup
> 2) /run/dnsmasq/dnsmasq.pid gets written by dnsmasq before it drops
> root, so is root:root
> 3) The reason /run/dnsmasq is owned by dnsmasq is so that dnsmasq can
> unlink the pidfile at shutdown, after it has dropped root and is running
> as 'dnsmasq'

Does dnsmasq need a PIDfile when running under systemd? Can't it just
not double fork, stay in the foreground using a Type=simple systemd unit?

That way the whole problem could be avoided all together.

Grüße,
Sven.

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