Re: [Qemu-devel] [PATCH v2 3/5] sockets: remove use of QemuOpts from socket_connect

["Daniel P. Berrange" <berrange@redhat.com>]

On Tue, Nov 17, 2015 at 03:40:58PM -0700, Eric Blake wrote:
> On 11/17/2015 10:00 AM, Daniel P. Berrange wrote:
> > The socket_connect method accepts a QAPI SocketAddress object
> > which it then turns into QemuOpts before calling the
> > inet_connect_opts/unix_connect_opts helper methods. By
> > converting the latter to use QAPI SocketAddress directly,
> > the QemuOpts conversion step can be eliminated
> > 
> > This also fixes the problem where ipv4=off && ipv6=off
> > would be treated the same as ipv4=on && ipv6=on
> > 
> > Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
> > ---
> >  util/qemu-sockets.c | 91 +++++++++++++++++++++--------------------------------
> >  1 file changed, 36 insertions(+), 55 deletions(-)
> > 
> 
> >      ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG;
> > -    ai.ai_family = PF_UNSPEC;
> > +    ai.ai_family = inet_ai_family_from_address(saddr, &err);
> >      ai.ai_socktype = SOCK_STREAM;
> >  
> 
> >  
> > -    if (qemu_opt_get_bool(opts, "ipv4", 0)) {
> > -        ai.ai_family = PF_INET;
> > -    }
> > -    if (qemu_opt_get_bool(opts, "ipv6", 0)) {
> > -        ai.ai_family = PF_INET6;
> 
> I'm using the notation you used in 2/5, where - is unspecified, f is
> explicitly false, and t is explicitly true.  qemu_opt_get_bool(, 0)
> cannot tell the difference between - and f.
> 
> The old code treated 4=- and 6=- as PF_UNSPEC; 4=f and 6=f as PF_UNSPEC,
> and 4=t and 6=t as PF_INET6.  That doesn't quite jive with the commit
> message claiming that 4=off (is that '4=-' or '4=f'?) and 6=off was the
> same as 4=on (4=t) and 6=on.

Yeah that commit message is wrong - i'll remove that bit



Regards,
Daniel
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