usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Remove $FreeBSD$: one-line nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

Remove mention of minimum password length and upper/lower case checking,
patch supplied by Allan Jude <freebsd@allanjude.com>. Add xref to
pam_passwdqc(8), where that testing is now done.

PR: docs/184482
Submitted by: Ryan Gerstenkorn <ryan_gerstenkorn@fastmail.fm>
Reviewed by: jilles, eadler
MFC after: 3 days

None of these programs actually use auth.conf.

MFC after: 1 week

Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with: imp, rwatson

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Markup nits.

Fix a typo

Cross-reference pw(8) into chpass(1), passwd(1), and vipw(8).

Expand *n't contractions.

Fixed xref.

Deal with double whitespace.

Mechanically kill hard sentence breaks.

mdoc(7) police: Deal with self-xrefs.

Introduce enumerate of options using the standard way.
Remove .Pp between items.

Use `The .Nm utility'

Remove whitespace at EOL.

mdoc(7) police: removed HISTORY info from the .Os call.

mdoc(7) police: use the new features of the Nm macro.

Avoid use of direct troff requests in mdoc(7) manual pages.

Correct a few typos, including a mis-represented option (-s instead of
-h for NIS host).

Submitted by: Peter Avalos <pavalos@theshell.com>

Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

Teach passwd about a new "mixpasswordcase" login.conf parameter. If this
parameter is missing, or specified as above, then passwd behaves as normal
when the user enters an all lower case password -- i.e., it prompts them
to use mixed case, and will only grudgingly accept an all lower case
password.

If you negate this entry in login.conf, with "mixpasswordcase@", then
passwd will allow all lower case passwords without complaining.

Approved by: jkh

$Id$ -> $FreeBSD$

Clarify when the user gets a prompt for the old password, and that
passwords are not echoed.

Get quotes right in troff.

Change references from "passwordperiod" to "passwordtime", since
"passwordtime" is what passwd(1) has actually been using. I suspect
passwordperiod was the original intent. I can't figure-out which,
if either, BSDi uses. If anyone knows...

Back out the new crypt(3) stuff untill we can go through an independant
"make world" to make sure everything works properly.

Added support for multiple hash formats, and new salt generation code.
It selects which hash format to use by checking /etc/auth.conf for
auth_default. Leaving auth_default disabled will give the current
behaviour (use the same format as is currently used in the password,
or if a new password default to what crypt likes best--des if it exists).
Now you can set it to one of: des, best, md5 or sha1. best is a synonym
for sha1, currently.

We use login.conf, not login.cap

PR: doc/8897
Submitted by: Jonathan Hanna <pangolin@home.com>

Use KJH's auth.conf parser to turn on/off Kerberos in userland.

The host commandline option is -h and not -s.

PR: 7703
Submitted by: Yoshishige Arai <ryo2@on.rim.or.jp>

Type fix: when -> with

PR: 5420
Submitted by: Jonathan Hanna <jh@pc-21490.bc.rogers.wave.ca>

spelling corrections.

PR: docs/4450
Submitted by: josh@quick.net

Adds login class support for local & nis passwords:
- minpasswordlen=n override minimum password length for class.
- passwordperiod=n[smhdwy] auto-set next password change date.

Add synopsis for yppasswd.

Merge in changes to support the new rpc.yppasswdd(8) and fix a few bugs.

In passwd(1):

- Gut most of yp_passwd.c and leave only a few things that aren't common
to pw_yp.c.

- Add support for -d and -h flags to select domains and NIS server hosts
to use when updating NIS passwords. This allows passwd(1) to be used
for changing NIS passwords from machines that aren't configured as
NIS clients. (This is mostly to allow passwd(1) to work on NIS master
servers that aren't configured as clients -- an NIS server need not
necessarily be configured as a client itself.)

NOTE: Realize that having the ability to specify a domain and hostname
lets you use passwd(1) (and chpass(1) too) to submit update requests
to yppasswd daemons running on remote servers in remote domains which
you may not even be bound to. For example, my machine at home is not
an NIS client of the servers on the network that I manage, yet I can
easily change my password at work using my FreeBSD box at home by doing:
'passwd -d work.net.domain -h any.nis.server.on.my.net wpaul'. (Yes,
I do use securenets at work; temporarily modified my securenets file
to give my home system access.) Some people may not be too thrilled
with this idea. Those who don't like this feature can recompile passwd(1)
and chpass(1) with -DPARANOID to restrict the use of these flags to
the superuser.

(Oh, I should be adding proper securenets support to ypserv(8) and
rpc.yppasswdd(8) over the weekend.)

- Merge in changes to allow root on the NIS master server to bypass
authentication and change any user's NIS password. (The super-user
on the NIS master already has privileges to do this, but doing it
through passwd(1) is much easier than updating the maps by hand.)
Note that passwd(1) communicates with rpc.yppasswdd(8) via a UNIX
domain socket instead of via standard RPC/IP in this case.

- Update man page.

In chpass(1):

- Fix pw_yp.c to work properly in environments where NIS client
services aren't available.

- Use realloc() instead of malloc() in copy_yp_pass() and copy_local_pass().

- Fix silly bug in copy_yp_pass(); some of the members of the passwd
structure weren't being filled in correctly. (This went unnoticed
for a while since the old yppasswdd didn't allow changes to the
fields that were being botched.)

- chpass(1) now also allows the superuser on the NIS master server to
make unrestricted changes to any user's NIS password information.

- Use UNIX domain comm channel to rpc.yppasswdd(8) when run by the
superuser on the NIS master. This allows several new things:

o superuser can update an entire master.passwd.{byname,byuid} entry
o superuser can update records in arbitrary domains using -d flag to
select a domain (before you could only change the default domain)
o superuser can _add_ records to the NIS master.passwd maps, provided
rpc.yppasswdd(8) has been started with the -a flag (to do this,
the superuser must force NIS operation by specifying the -y flag
to chpass(1) along with -a, i.e. 'chpass -y -a 'foo:::::::::')

- Back out the 'chpass -a <new password entry> breaks with NIS' fix
from the last revision and fix it properly this time. The previous
revision fixed the immediate problem but broke NIS operation in
some cases.

- In edit.c, be a little more reasonable about deciding when to
prevent the shell field from being changed.

Submitted by Charles Owens <owensc@enc.edu>, who said:

"I made a minor (one-line) modification to chpass, with regards
to whether or not it allows the changing of shells. In the 2.0.5 code,
field changing follows the settings specified in the "list" structure
defined in table.c . For the shell, though, this is ignored. A quick
look in edit.c showed me why, but I don't understand why it was written as
such. The logic was

if shell is standard shell, allow changing

I changed it to

if shell changing is allowed (per table.c) and it is a standard shell
OR if uid=0, then allow changing."

Makes sense to me.

- Update man page.

Add a little info to this man page at the start so it doesn't
appear that ALL the passwd command does is change a users Kerberos
password, since that is incorrect.

Actually, this man page needs a good overhaul to better reflect systems
that don't have Kerberos installed.

Remove the ypchfn/ypchsh stuff from passwd and leave just the
yppasswd support. The rest is moving into chpass.

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