[libvirt] [PATCH] Prevent streams from becoming libvirtd controlling TTY
Daniel P. Berrange
berrange at redhat.com
Thu Mar 14 11:38:52 UTC 2013
On Wed, Mar 13, 2013 at 04:33:34PM -0600, Eric Blake wrote:
> On 03/13/2013 11:24 AM, Daniel P. Berrange wrote:
> > From: "Daniel P. Berrange" <berrange at redhat.com>
> >
> > When opening a stream to a device which is a TTY, that device
> > may become the controlling TTY of libvirtd, if libvirtd was
> > daemonized. This in turn means when the other end of the stream
> > closes, libvirtd gets SIGHUP, causing it to reload its config.
> > Prevent this by forcing O_NOCTTY on all streams that are opened
> >
> > Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> > ---
> > src/fdstream.c | 2 ++
> > 1 file changed, 2 insertions(+)
>
> ACK. Bet you had fun tracking down that dark corner of POSIX.
I can think of many appropriate words for what I had to do to
discover this. 'fun' is not one of them :-P
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
More information about the libvir-list
mailing list