[libvirt] [PATCH] Prevent streams from becoming libvirtd controlling TTY
Eric Blake
eblake at redhat.com
Wed Mar 13 22:33:34 UTC 2013
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.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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