[libvirt] Some questions about virConnectAuthCallbackPtr

[Richard W.M. Jones]

Some questions which seem to be left ambigious by the documentation
for virConnectAuthCallbackPtr:

http://libvirt.org/html/libvirt-libvirt.html#virConnectAuthCallbackPtr

(1) For a single open, can this be called multiple times?  I'm
thinking, some authentication methods might give the user N attempts
at typing the password, which might result in N callbacks here.

(2) The documentation says: "Returns: 0 if all interactions were
filled, or -1 upon error".  However it also says "If an interaction
cannot be filled, fill in NULL and 0".  Does that mean it's OK (not an
error, return 0) if a result field is set to NULL?

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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