Remove copyright strings ifdef'd out

We've ifdef'd out the copyright strings for some time now. Go ahead and
remove the ifdefs. Plus whatever other detritis was left over from other
recent removals. These copyright strings are present in the comments and
are largely from CSRG's attempt at adding their copyright to every
binary file (which modern interpretations of the license doesn't
require).

Sponsored by: Netflix

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 .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

getty: Avoid NULL deref if stdin is not a tty.

Sponsored by: Klara, Inc.
Obtained from: Apple OSS Distributions
Differential Revision: https://reviews.freebsd.org/D37265

getty: code cleanup, part 2

* Clean up whitespace
* Reindent

Sponsored by: Klara, Inc.

getty: code cleanup, part 1

* Avoid unnecessary use of `unsigned char *`
* Use explicit casts when assigning `unsigned char *` to `char *` or vice versa
* Drop unused global variables (and fix memory leak in `gettable()`)
* Use `snprintf()` instead of `strcpy()` + `strcat()`
* Drop spurious braces in switch

Sponsored by: Klara, Inc.
Obtained from: Apple OSS Distributions (in part)
Differential Revision: https://reviews.freebsd.org/D37263

getty: const'ify search pointer.

No functional change.

MFC after: 2 weeks

Simplify code with strlcpy/strlcat.

MFC after: 2 weeks

Prevent getty(8) from looping indefinitely if the device node doesn't
exist. This behaviour makes no sense for eg USB serial adapters, or
USB device-side serial templates.

This mostly reverts to pre-r135941 behaviour.

Reviewed by: imp@
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D14198

Build getty(8) with WARNS=6.

Reviewed by: imp@
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D14197

Sprinkle static; avoid nested externs.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Rename getty's getline() to get_line(), to avoid clash with getline(3).

Obtained from: DragonFlyBSD
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

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 LOG_ODELAY because it does nothing.

Reviewed by: jilles
CR: https://reviews.freebsd.org/D611

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

Add __unused. Ansi prototypes.

Add a new libc function: cfmakesane(3).

I've noticed various terminal emulators that need to obtain a sane
default termios structure use very complex `hacks'. Even though POSIX
doesn't provide any functionality for this, extend our termios API with
cfmakesane(3), which is similar to the commonly supported cfmakeraw(3),
except that it fills the termios structure with sane defaults.

Change all code in our base system to use this function, instead of
depending on <sys/ttydefaults.h> to provide TTYDEF_*.

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.

Include gettytab.h before extern.h so that the declarations of struct
gettyflags, gettynums and gettystrs are available.

Report once that the device isn't there, but keep trying. Don't
filter the errno values. They don't make as much sense as they used
to given how we do devices in /dev.

Prototype defttymode() instead of just declaring it.

- Use the initial terminal mode instead of the current mode
as the source of defaults for terminal device parameters.

- Do duplucate code reduction and simplification enabled by
the above.

Reviewed by: green
MFC after: 1 month

In the last clean-up of this code, the fact that the default tty mode
information could only be gleaned from the the tty descriptor itself
was neglected, so never did the tty's default settings get copied from
the kernel. Specifically, this caused all manner of ctrl-keys to not
work. Fix this by calling dogettytab() in all the proper places, and
retrieving the terminfo temporarily in dogettytab().

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

Spot one more place where boolean variables were incremented
instead of just being assigned a truth value.

Coding style fix: Use "foo = 1" instead of "foo++" to assign
the truth value to a boolean variable, especially when inside
a loop. The variable can overflow otherwise, at least in theory.

Fix some minor bugs, namely:

- Initialize "rval", which would be used uninitialized
if al or pl options were set.

- Don't pass an empty string to login(1) as a user name
(this could be triggered by entering a name and then killing it
with backspace or ^U.)

- Don't loop endlessly if the al option specifies a bogus (i.e.,
not alphanumeric) auto-login name.

- Don't pass a bogus user name to login(1) if a good name were
entered and then killed with ^U.

- Exit with status 0, not 1, on receiving an EOF character,
since it's not a error condition.

MFC after: 1 week

Fix a typo (missed &&).

Submitted by: marcus

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

#include <sys/time.h> instead of depending on namespace pollution in
<sys/stat.h> for its prerequisite <sys/time.h>.

Removed a duplicated include. Sorted includes.

Remove some unused variables, mark unused parameters as unused and change
names of variables that shadow globally declared variables. This should
help people doing later WARNS= fixes.

o __P removal
o remove register
o use strict prototypes

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>

Check return code from login_tty. Allow getty to try and become
a daemon and session leader (thus allowing getty to be run from
a shell command line or script).

Partially Reviewed by: bde

Don't depend on <sys/stat.h> bogusly including <sys/time.h> (and thereby
<time.h>).

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

Changed setflags() to set_flags(). This fixes world breakage due to
recently incremented namespace pollution in <unistd.h>.

$Id$ -> $FreeBSD$

Ensure that things returned by gethostname() and
friends are terminated and allow for a maximum
host name length of MAXHOSTNAMELEN - 1.
Put parenthesis around sizeof args.
Make some variables static.
Fix telnetd -u (broken by my last commit)

Prompted by: bde

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>

Set the CPU resource limit back to infinity before exec()ing PP.
PR: 10399

This thing has its own puts function, so use it.
Submitted by: Matthew Jacob <mjacob@nas.nasa.gov>

Correct incompletes .Xrs. Remove duplicate #includes and unused variables.

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.

Removed unused variables.

Reset alarm before invoking ppplogin.
PR: 3733
Reviewed by:
Submitted by: kfurge@worldnet.att.net
Obtained from:

Revert $FreeBSD$ to $Id$

Tidy-up modem-chat handling: ensure tty modes are restored to
'sane' standard (not raw) settings before abort/exiting; move
responsibility of setting raw mode for chat-handling out of
chat.c to avoid doing redundant tc{s,g}etattr()s; move DE
pause prior setting standard mode before issue/login prompt to
avoid echoing modem connect strings. Fixed up comment styles
in a couple of places.

Increased username size to allow passing username:auth_method to
login.

Make username size dependant on MAXLOGNAME in sys/param.h. Was
previously hard-coded at 16 characters (and possibly overflowing
the field when NUL terminating a username of exactly 16 characters
in length).

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.

Fix bug in %s, %m, %r and %v macros not displaying data.

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

Replace non-POSIX speed setting by POSIX one

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

Back this change out. It's just not worth arguing over and any further emails
I get on this topic will go straight to /dev/null. This is absolutely the
last word on this topic you'll see from me. Too much time has already been
wasted.

A useful aid.. Add support for:

%r: current release
%m: machine architecture type (i386 for now)
%s: OS name (FreeBSD)

from uname() in banner string.

Remove trailing whitespace.

Fix from John Kohl:

/usr/libexec/getty doesn't properly interpret the '%d' escape. It tries
to use %P to get AM or PM, but instead all it gets is "P".

Submitted by: John Kohl

Ignore SIGQUITs, cause getty dumps core on garbadge from modem line

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

Implement fbtab ala SunSO.
Could not compile it (on thud) because ttychar.h was still broken.
Reviewed by:
Submitted by: guido

BSD 4.4 Lite Libexec Sources