[Libvir] [PATCH] detect path of dnsmasq, brctl

[Daniel P. Berrange]

On Thu, Sep 20, 2007 at 06:34:21PM +0100, Richard W.M. Jones wrote:
> I have found 3 bugs in libvirtd in the way that it runs the external 
> programs dnsmasq and brctl.
> 
> Bug (1) is that it searches the $PATH to find dnsmasq.  This is normally 
> OK when libvirtd is launched from start-up scripts, but it's not very 
> helpful if you run libvirtd by hand because likely-as-not your path 
> won't contain /usr/sbin (the normal location of dnsmasq).
> 
> Bug (2) is that if libvirtd can't execvp dnsmasq, then it doesn't fail 
> in any obvious way.

Yep, I've never been able to figure out a good answer for that. We
start the network at boot time, so pretty much best we could ever do
is syslog() the problem. Or we could automatically shutdown the virtual
network it dnsmasq fails, but i think that would be even more unpleasant

> Bug (3) is that the path to brctl is hard-coded.
> 
> This patch fixes bugs (1) & (3), but does not fix bug (2).

This patch looks good to apply.


Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=|