FYI, some bug fixes for DHCP have been merged.

[Ted Lemon <mellon%isc.org@localhost>]

There's nothing major in this code (or at I didn't intend that there
be) so it seems like incorporating the code was reasonable.   If
anybody's curious, the actual changes are documented in the RELNOTES
file in the src/usr.sbin/dhcp directory, and I've also included them
below.

                               _MelloN_

            CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 20

- Actually do the client fix mentioned below - Patchlevel 20 only contained
  half of the fix.

            CHANGES FROM VERSION 2.0 BETA 1 PATCHLEVEL 19

- Removed arp table clearing code from solaris client script.

- Document Linux "protocol not configured" error more thoroughly.

- Clean up some unused variables.

- Add entry and exit hooks to all dhcp client scripts, along with a
  make_resolv_conf function that can be redefined in the entry hooks.
  Document this new feature set.

- Fix client to take advantage of network APIs that allow it to
  receive a unicast instead of requesting that the DHCP server
  broadcast its response.

- Add -pf flag to all daemons allowing user to specify PID file name
  on command line.

- Undo a previous change that attempted to be clever about testing
  interface flags but wound up being stupid instead.

- Enforce access control on DHCPREQUEST messages as well as
  DHCPDISCOVER messages.