[Libguestfs] New tool proposal

Hi Rich, We just talked about a new tool virt-diff which can diff files between two guest, suggested by Kamezawa Hiroyuki <kamezawa.hiroyu(a)jp.fujitsu.com&gt; things like below, # virt-diff -Nru --guest=Guest0 --guest=Guest1 /etc/hosts Any thought about this? Another question, what do you think about implement iptables, firewall, yum, rpm, etc into libguestfs? Thanks, Wanlong Gao