[Spice-devel] Be more specific in the case of authentication error

[mkasik at redhat.com]

When an authentication error occurs SPICE_CLIENT_ERROR_AUTH_NEEDS_PASSWORD or SPICE_CLIENT_ERROR_AUTH_NEEDS_PASSWORD_AND_USERNAME is returned as a channel error. But it can happen that only username is needed when you use e.g. GSSAPI.
It would be useful to have SPICE_CLIENT_ERROR_AUTH_NEEDS_USERNAME so that clients don't show authentication prompt which asks for username and password in this case (so it asks just for username).

It would be great if spice-gtk wouldn't ask for this at all and used default principal's name for such situations.

(https://bugs.freedesktop.org/show_bug.cgi?id=92994)

Regards

Marek