Thanks! I'll give that a go and let you know how it goes. Jonathan
> On Nov 21, 2014, at 1:25 PM, Michael Jones <av...@jonesmz.com> wrote: > > >> Hello,I am looking for a way for a Linux machine to tell when I return home. >> My idea is that my iPhone will always do an mDNS announcement when it joins >> my home wifi. So I'm looking for a way to watch for mDNS announcements and >> perform and action if the right one is seen. Obviously the avahi-daemon is >> watching these all the time and updating its cache, so I was thinking that >> there might be a good place to start. However the only command line way I >> can see to get to the avahi-daemon cache is to send a SIGUSR1 to get it to >> dump to /var/log/syslog. Then I can look at the timestamp to determine the >> last time it registered and compare with now. That seems quite ugly though, >> and I don't like the idea of continually dumping to syslog. >> So is there a way to make it more event driven with the avahi-daemon? I >> think from looking at the D-Bus API that might be the way to go?If it is the >> right approach, I would appreciate it if someone knew of a related chunk of >> source that I could use as a starting point. >> Thanks!Jonathan > > Write a small program that uses the Avahi API. A very high level wrapper for > the Avahi API is: https://github.com/johanneshilden/qtzeroconf > > Using that, you can detect your phone joining your home network in under 10 > lines of code. > Create the service browser object > Connect that new object to a qt slot that'll respond to the new service > joining your network, Tell the service browser object which services to > listen for. > > From there, you can do whatever you want with the information. Perhaps you > would want to send some kind of DBus signal to let other programs know. > > I'm afraid I haven't investigated the DBus API, so I'm not certain I can give > you any advice in that direction, but I have written apps using the high > level Qt API that I linked above, and I've never had any trouble with it. > > --Michael Jones > > _______________________________________________ > avahi mailing list > avahi@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/avahi
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