My recollection was that there was some way to get the destination
address/port to which an UDP packet was sent by toggle either options to
recvmsg(), or via setsockopt(). The option was in 4.3, I'm sure... But I
haven't used it since.

  Has it disappeared?
 
  I hate having to open a socket for each address that exists (a la BIND,
etc...) , and this is NetBSD specific.

] Train travel features AC outlets with no take-off restrictions|gigabit is no[
]   Michael Richardson, Solidum Systems   Oh where, oh where has|problem  with[
]     mcr@solidum.com   www.solidum.com   the little fishy gone?|PAX.port 1100[
] panic("Just another NetBSD/notebook using, kernel hacking, security guy");  [