libexec: 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 .h pattern

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

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Add a new getty/gettytab capability to generate an initial message dynamically.

This modification adds a new gettytab(5) option (iM) to specify a
program to run that will generate the initial (banner) message that is
displayed before the login prompt. Such a capability is useful when
dynamic information is needed in the banner message that cannot be
supplied by the set of % substitution sequences available in the "im"
option.

Reviewed by: vangyzen, wblock, manpages
Approved by: vangyzen (mentor)
MFC after: 1 week
Relnotes: yes
Sponsored by: Dell EMC
Differential Revision: https://reviews.freebsd.org/D12108

Remove the 3rd clause ("advertising clause") of the BSD license as
permitted by the University of Berkeley on July 22, 1999.

Reviewed by: imp
MFC after: 1 week

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.

Read gettytab(5) soon enough to fill in all necessary values.
Re-read gettytab(5) only if needed.

This fixes bugs introduced as long ago as in getty/main.c rev.1.15.

PR: bin/18181
MFC after: 1 month

Add a new gettytab(5) option - `pl', which if set tells getty that the line
in question is PPP-only line, i.e. no PPP-sequence detection is necessary and
PPP login program referenced by `pp' should be started automatically instead of
login(1)

Feature suggested and sponsored by: United Networks of Ukraine
No reply from: re
MFC after: 2 weeks

Add 'df' string to gettytab - the strftime(3) format for %d
in the banner messages (of course, defaults to "%+").

Submitted by: Gleb Smirnoff <glebius@tak.estra.ru>

Add 'nc' flag to gettytab -- no carrier. Forces non-blocking open and
setting of CLOCAL. Necessary for 3 wire RS-232 setups with dumb
terminals.

PR: 5959

$Id$ -> $FreeBSD$

Add an 'al' (autologin username) capability to getty/gettytab. This is a
damn useful thing for using with serial consoles in clusters etc or secure
console locations. Using a custom gettytab entry for console with
an entry like 'al=root' means that there is *always* a root login ready on
the console. This should replace hacks like those which go with conserver
etc. (This is a loaded gun, watch out for those feet!)

Submitted by: "Andrew J. Korty" <ajk@purdue.edu>

Import Lite2's src/libexec, except for makekey (which was spammed
by a repository copy from 1.1.5 and patched back to Lite1) and
rbootd/bootdir/SYSHPBSD (which is binary). All changed files have
already left the vendor branch.

Revert $FreeBSD$ to $Id$

Added:
ic=expect/send script modem init script
ac=expect/send script modem answer script
ct#val chat script timeout (seconds)
rt#val recycle timeout (seconds) if 'ac' set
dc#val debug bitmask for debugging chat scripts
hw (boolean) enable crtscts handshaking
if=path 'issue' file sent prior login prompt

chat.c is a simplistic expect/send chat module.

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Add a new 'de' capability, specifying a number of seconds to sleep before
emitting the initial prompt.

This is useful in a number of circumstances :
- you have (a) stupid modem(s) that assert(s) DCD too soon.
- you have dialin users with stupid diallers and poorly
written chatscripts. (esp. some Winsock diallers)

BSD/OS also has this capability.

Submitted by: damian@cablenet.net (Damian Hamill)

Add the >optional< ability to sense PPP link bringups and call an authentication program

Finally commit the changes that make getty(8) no longer depend on the
COMPAT_43 cruft. This is supposedly the last core utility that has
been using it! (So now, one should be able to remove this option from
the config files. Be aware that the last officially released xterm
however still requires it.)

The getty has been running now for several weeks on my modem line, so
i feel safe about it.

Obtained from: mostly from the NetBSD vendor-branch

Import NetBSD's termios'ed getty into a vendor branch.

Obtained from: NetBSD 1.1R

Replace this with the 1.1.5.1 getty. David says that the 4.4 version is too
broken to live.
Submitted by: jkh

BSD 4.4 Lite Libexec Sources