Re: [PATCH v4 2/4] util/qemu-sockets.c: Split host:port parsing out of inet_parse

[Daniel P . Berrangé]

On Wed, Mar 03, 2021 at 10:06:50AM -0800, Doug Evans wrote:
> On Sun, Feb 28, 2021 at 1:40 PM Samuel Thibault <samuel.thibault@gnu.org>
> wrote:
> 
> > [...]
> >
> > > +  Examples:
> > > +  hostfwd_add net0 tcp:127.0.0.1:10022-:22
> > > +  hostfwd_add net0 tcp:[::1]:10022-[fe80::1:2:3:4]:22
> >
> > Yep, that looks good to me.
> >
> >
> 
> Daniel, you wanted me to use inet_parse().
> Is the above syntax ok with you?
> You must have had some expectation that at least some of
> the various flags that inet_parse() recognizes would be needed here.

It feels like the ,ipv4=on|off,ipv6=on|off flags are relevant here,
especially in the empty address case. eg

   tcp::10022          - attempt to listen on both ipv4 + ipv6
   tcp::10022,ipv4=off - listen on default address, but only for ipv6
   tcp::10022,ipv6=off - listen on default address, but only for ipv4

Basically this ends up bringing the hostfwd stuff into alignment with
the way other backends deal with this

Regards,
Daniel
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