[libvirt] [PATCH] Don't spam logs with "port 0 must be in range" errors

Daniel P. Berrange berrange at redhat.com
Fri Jul 5 09:18:26 UTC 2013


On Fri, Jul 05, 2013 at 09:46:26AM +0200, Michal Privoznik wrote:
> On 04.07.2013 21:46, Jiri Denemark wrote:
> > Whenever virPortAllocatorRelease is called with port == 0, it complains
> > that the port is not in an allowed range, which is expectable as the
> > port was never allocated. Let's make virPortAllocatorRelease ignore 0
> > ports in a similar way free() ignores NULL pointers.
> > ---
> >  src/qemu/qemu_migration.c   |  4 ++--
> >  src/qemu/qemu_process.c     | 27 +++++++++++----------------
> >  src/util/virportallocator.c |  4 ++++
> >  3 files changed, 17 insertions(+), 18 deletions(-)
> 
> Since making an application to listen on port 0 on Linux is almost
> impossible I feel confident enough to give ACK.

s/almost//

If you specify a port==0 in a listen() call, the kernel will
auto-allocate a random non-zero port for you.

Daniel
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