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

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 .c pattern

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

Mark usage function as __dead2 in programs where it does not return

In most cases, usage does not return, so mark them as __dead2. For the
cases where they do return, they have not been marked __dead2.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/735

Remove extraneous setutxent() calls in write(1).

We already call setutxent() once during initialization. Furthermore,
the subsequent calls occur after the process has entered capability
mode, so they fail, and attempts to fetch database entries fail as
a result.

PR: 235096
Submitted by: fullermd@over-yonder.net
MFC after: 3 days

capsicum: use a new capsicum helpers in tools

Use caph_{rights,ioctls,fcntls}_limit to simplify the code.

Convert `cap_enter() < 0 && errno != ENOSYS` to `caph_enter() < 0`.

No functional change intended.

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.

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

write(1): Capsicumify

Enter Capsicum capability sandbox pretty early in this setuid program.

Some minor modifications were needed to cache directory fds and use
relative lookups.

Rights restriction of the stdio descriptors is unfortunately pretty messy
because we need an ioctl capability not present in the current libcapsicum
helpers (FIODGNAME).

Reviewed by: ed
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7999

Fix write(1) to support wide characters.

Submitted by: amdmi3
PR: bin/164317

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.

Perform all trivial ports to utmpx for usr.bin/.

They were already converted to use libulog, so it's easy to convert them
to utmpx.

Let wall(1) use utmpx.

Because our implementation guarantees the strings inside struct utmpx to
be null terminated, we don't need to copy everything out, which makes
the code nicer to read.

Also set WARNS to 6 and add $FreeBSD$ to keep SVN happy.

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

write(1) needs to strip off the leading /dev/ from the tty name for the
current tty as returned from ttyname(3) so it can try to avoid writing to
the current tty if possible. Previously, it did this by trimming off any
leading directory (effectively performing a basename(3) on the path
returned from ttyname(3)). However, this chopped off too much of the path
for ttys who have directories in their name such as pts(4). Instead, just
strip off the leading /dev/ from the path returned by ttyname(3). This
fixes write(1) when using pts(4).

MFC after: 1 week
Reported by: rwatson

Fix a typo in comment.

Reviewed by: mux (mentor)

ANSIify function definitions.
Add some constness to avoid some warnings.
Remove use register keyword.
Deal with missing/unneeded extern/prototypes.
Some minor type changes/casts to avoid warnings.

Reviewed by: md5

Use getopt() to reject any options and skip "--" arguments.

remove __P

1) Move FreeBSD tag to after vendor ID, #if 0 vendor ID.
2) Add missing include of stdlib.h for exit(), spotted by gcc3.

WARNS=2 fixes, use __FBSDID(), kill register keyword.

$Id$ -> $FreeBSD$

Clean up some ambiguous nested if/elses.

Allow backspace too

Oops, fix upper controls test

Localize it. High controls disabled in any case.
Shut compiler warning about signal argument.
PR: 4466

Use err(3). Add usage() and prototypes.

Finish importing Lite2's src/usr.bin, except for ex, diff, grep, mail,
pascal and vmstat.sparc. All changed files on the vendor branch should
already have been imported.

Replace hardcoded length of "/dev/" with strlen(_PATH_DEV).

Pointed out by: bde

sprintf --> snprintf

Use _PATH_DEV instead of hard coded "/dev/"

Obtained from: OpenBSD, Jason Downs <downsj@OpenBSD.ORG>

Do unctrl in right way
Handle '\377' properly

Remove char->int promotion.
Fix uncontrol function for 8bit chars.

Now works with 8bit chars...

BSD 4.4 Lite Usr.bin Sources