[sane-devel] net backend changes

[Henning Meier-Geinitz]

Hi,

I have changed the handling of option descriptors in the net backend.
The old version freed the option descriptions and malloced new ones
whenever SANE_INFO_RELOAD_OPTIONS was set. However, this is against
the standard. So now I copy the contents of the descriptors, the
addresses aren't changed.

I found out about this with tstbackend but I remember seeing problems
with this behavour before with the mustek backend. So maybe some more
net problems have been fixed.

Please test with your backends (e.g. scanimage -d
net:localhost:backend).

Bye,
  Henning