Well, I think it should be pointed out that machines do not
have IP addresses.
interfaces have IP addresses, and
often more than one - and not necessarely unique. My home box
for instance has 2 ethernet cards, but 4 interfaces, each with
a different IP address (the interfaces are
lo,
eth0,
eth1 and
ppp0, with the IP addresses
127.0.0.1,
10.0.0.15,
192.168.0.1
and
213.84.146.74). Well, in fact there are 6 interfaces,
but two of them don't have an IP address.
If you want something portable, your best chance is probably
to just return 127.0.0.1.
Abigail
