pavucontrol segfaults if pulseaudio cannot open PCM devices

[ndim]

For some reason (unknown as of now), the pulseaudio daemon cannot open the ALSA device hw:0 here. The exact reason is irrelevant for this bug, though.

If the daemon is in that state, starting pavucontrol will execute the MainWindow::updateServer() function which then executes

     defaultSourceName = info.default_source_name;
     defaultSinkName = info.default_sink_name;

but both info.default_*_name values are (char *)NULL. This will result in a segfault.

All info at http://pa.lauft.net/pavucontrol/

[ndim]

pavucontrol backtrace and pulseaudio daemon output

[ndim]

detect the problem and abort pavucontrol with message instead of segfaulting

[lennart]

Fixed in r68

[lennart]

r68 of pavucontrol that is. The link in trac doesn't really work.