resolver with IPv6 transport support

[Mark Kettenis]

   From: <venaas@nvg.ntnu.no>
   Date:   Sun, 23 Jul 2000 15:53:55 +0200

   Just a quick question. Can I make nsaddr_list an array of pointers
   or must it be kept as it is for compatibility reasons. Are there
   programs that looks at or modifies nsaddr_list?

As Ulrich already said, you cannot touch anything before the first
member that says it's PRIVATE.

Also note that res_nsend() goes to considerable trouble to detect when
nsaddr_list is modified.  That's what the funky union and the EXT
macro are there for.

Mark