Re: [Qemu-devel] Is ivshmem's test for unix domain client socket valid?

[Paolo Bonzini <pbonzini@redhat.com>]

On 20/11/2015 18:56, Markus Armbruster wrote:
> Looks rather fishy:
> 
>         if (strncmp(s->server_chr->filename, "unix:", 5)) {
>             error_setg(errp, "chardev is not a unix client socket");
>             return;
>         }
> 
> Paolo, is this reliable?

Yes, though by total chance (which is already a curious definition of
reliability).  If you create "-chardev file,path=unix:foo",
chr->filename ends up with "file" because only pty and socket chardevs
set chr->filename.  Everything else does not set it, and the field is
thus set to the default---the backend name.

> Is it the proper way to check?

It's the only one, which makes it the most proper too.  Sarcasm is
intentional.

Paolo