itojun@iijlab.net writes:

> >Ok. Here's my small test program, which doesn't work. 
> >Running: 
> >  ./iftest lo0 192.168.127.26 255.255.255.0
> >should, AFAIK, be the same as: 
> >  ifconfig lo0 192.168.127.26 netmask 255.255.255.0 
> 
> 	it worked for me.  i guess your forgot to memset(&ip, 0, sizeof(ip))
> 	and the behavior of the program is unstable.

Aah.. yes, now it works much better. Thanks a lot, you've saved my
day. :)


Tomas