[Linphone-developers] Crash with no sound card installed...

[Robin Getz]

I was running linphonec on a system with no sound card installed (I just 
wanted to create the default .linphonerc file), and I got a null pointer 
access in:

linphone-1.6.0/mediastreamer2/src/mssndcard.c:ms_snd_card_get_string_id()

const char *ms_snd_card_get_string_id(MSSndCard *obj){
        if (obj->id==NULL)
                obj->id=ms_strdup_printf("%s: 
%s",obj->desc->driver_type,obj->name);

        return obj->id;
}

Shouldn't there be a checked here as well to make sure obj != NULL, before it 
looks at ->id?

The interesting thing (I thought) was that it didn't warn me on running, but 
crashed on "quit"...

----------------------
root:~> linphonec
NLS disabled.
Ready
Warning: video is disabled in linphonec. Run with -V option to enable it.
linphonec> quit
Terminating...
No active call.

NULL pointer access 
SIGSEGV
======================

Thanks

-Robin