Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFH r226345, r226464, r226879:
Make dhclient use a pid file. Modify the rc script accordingly, fix some bugs

Approved by: des (mentor)

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Switch the default WARNS level for sbin/ to 6.

Submitted by: Ulrich Spörlein

Install the dhcp-options.5 manpage.

Timeout from: brooks
Approved by: re (blanket manpages)

- Remove OpenBSD'ism (bsd.own.mk).
- Remove redundant and harmful -Wall from CFLAGS.

Use SCRIPTS to install dhclient-script instead of rolling our own.

Take the OpenBSD version of the Makefile to resolve conflicts as the old
one is irrelevent. Add $FreeBSD.

Tweak a couple of utilities so they compile cleanly for /rescue. Mostly
path fixes.

Submitted by: Tim Kientzle <kientzle@acm.org>

Hook omshell(1) up to the build.

Building crunched things by hand (regenerating boot floppies for example)
without a full make release cycle fails as the correct include path
isn't setup.

Fix "make release.4" breakage.

src/contrib/isc-dhcp/includes/minires/resolv.h has a 'extern' definition
but it makes an error when linking crunched binary just like this:

dhclient.lo: In function `MRres_nquery':
dhclient.lo(.text+0x2dcce): undefined reference to `__h_errno_set'
dhclient.lo(.text+0x2dd5b): undefined reference to `__h_errno_set'
dhclient.lo: In function `MRres_nquerydomain':
dhclient.lo(.text+0x2de53): undefined reference to `__h_errno_set'

The author understands this will be a problem (see comments in resolv.h).
Murray said that the author will fix this, but as a temporary solution,
modifying the source code and not to use __h_errno_set.

BTW, I'm sorry that previous commitlog in src/sbin/dhclient/Makefile should
read "Found by:" instead of "Confirmed by"; I just found that rev 1.15
has a typo so fixed.

Tested on: ushi.jp.FreeBSD.org with today's 5-current source code.
(belive me, "make release.4" works fine now)

For unbraking "make release": s/client/common/g
(these files are sitting in src/contrib/isc-dhcp/common, not .../client.)

Confirmed by: 5.0-CURRENT-20020228-JPSNAP at snapshots.jp.FreeBSD.org

Add some ifdef(RELEASE_CRUNCH) goo to explicitly list the requisite
object files for crunchgen. Without this patch, release.4 will fail
to build the crunched binaries for the release floppies.

Makefile glue for DHCP v3 import.

Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by: mike

beforeinstall -> SCRIPTS.

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Add nsswitch support. By creating an /etc/nsswitch.conf file, you can
configure FreeBSD so that various databases such as passwd and group can be
looked up using flat files, NIS, or Hesiod.

= Hesiod has been added to libc (see hesiod(3)).

= A library routine for parsing nsswitch.conf and invoking callback
functions as specified has been added to libc (see nsdispatch(3)).

= The following C library functions have been modified to use nsdispatch:
. getgrent, getgrnam, getgrgid
. getpwent, getpwnam, getpwuid
. getusershell
. getaddrinfo
. gethostbyname, gethostbyname2, gethostbyaddr
. getnetbyname, getnetbyaddr
. getipnodebyname, getipnodebyaddr, getnodebyname, getnodebyaddr

= host.conf has been removed from src/etc. rc.network has been modified
to warn that host.conf is no longer used at boot time. In addition, if
there is a host.conf but no nsswitch.conf, the latter is created at boot
time from the former.

Obtained from: NetBSD

Blah, need to add /usr/bin to the path also.
Of course this is a bug in that the dhclient script will not work properly
if one has a local / and an NFS mounted /usr and needs to obtain its IP
address via DHCP before being able to mount /usr.

Need /usr/sbin for arp(8).

Patchlevel 3 of the ISC 2.0 dhcp client now requires us to give it the
shell script's PATH setting in the environment.

$Id$ -> $FreeBSD$

Add new file that needs compiling.

Install dhclient-script under ${DESTDIR}.

PR: 10615, 10891

More style fixes to bring this almost to bde's suggested version.

bde suggests not to trust ${COPY} to always be defined.
also fix style bugs submitted by Bruce

This commit was generated by cvs2svn to compensate for changes in r43855,
which included commits to RCS files with non-trunk default branches.

bmake framework for ISC-DHCP client