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/

logger(1): fix timestamps in case of long run

An example:

( echo test; sleep 2; echo test2 ) | logger -h /var/run/log

Before fix, logger assigned same timestamp to both records.

Fixes: 65547fb33db901a9f352aacb0ed45ce68b0bd275
Reported by: Vadim Goncharov
MFC after: 1 week

logger: fix builds without casper

We can enter capability mode only when Casper is available in
the system.

Reported by: mjg@
MFC after: 1 week

logger: temporarily disable Capsicum when a host is provided

We don't have a way to send a UDP package.

PR: 245314
Reported by: dch
Discussed with: emaste

logger: capsicumize

Submitted by: Tiger Gao <tig@freebsdfoundation.org>
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23744

logger: fix memory leak and use-after-free

This one call to getaddrinfo() did not adhere to the common idiom
of storing the result into a second res0 variable, which is later freed.

Reported by: Coverity
CID: 1368069 1368071
Sponsored by: Dell EMC

Fix crash with a dotless hostname.

Generate fully RFC3164 compliant messages, with timestamp and hostname.
Allow to set hostname to any string with -H.

MFC after: 2 months

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

Fix gcc build.

Spotted by: lidl

- Add -S option to specify the source address/port for UDP communication.
- Document -S option.
- Document that -h option supports AF_LOCAL.
- Split preparation of UDP sockets in logmessage() into socksetup().

Add missing const keywords.

Add missing static keywords to logger(1)

When specifying the -t option (send tag in front of message), this tag
should also be forwarded to the remote logging host, not only when the
logging is done locally.

PR: bin/154324
Submitted by: Callum Gibson <callumgibson@optusnet.com.au>
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.

When reading input from a file or device (via -f option) set the
input to be in non-buffering mode so that input lines are logged
as they occur rather than being saved up until a buffer's worth of
input has been logged.

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

Minor style(9) nit.

Make logmsg take const char * arguments.
Set WARNS to 6.

Add a new command-line option, -P, which allows the user to specify
an arbitrary port to which syslog messages are to be sent.

PR: bin/54026
Submitted by: Oliver Fromme
MFC after: 10 days

Reduce compiler warning: variable might be used uninitialized, by giving
an initial value.

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

Consistently use FBSDID

1) Use FBSDID for vendor string.
2) Change an int for a size_t, as that's what it is mainly used for.
3) Add some braces to keep gcc happy.

remove __P

Improve error reporting - report error message when there is one, or
report a short read if that's what we're reporting.

The default for -p was ``kern.notice'' in the -h case.
Make it ``user.notice'', as per manpage.

(The syslog(3) function defaults to LOG_USER facility
if none is specified, but we don't use syslog() in the
-h case.)

PR: docs/30374
Noticed by: SUGIMURA Takashi <sugimura@jp.FreeBSD.org>

IPv6 support for logger.

Reviewed by: freebsd-current

Allow logger to send messages directly to a remote syslog. (This
only does IPv4 as our syslogd only does IPv4. I dunno if the KAME
people have any plans for syslogd).

PR: 19821
Submitted by: Nick Hilliard <nick@iol.ie>
Reviewed by: sheldonh

$Id$ -> $FreeBSD$

Use err(3).

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

unset TZ from the environment so the timestamp gets the system default,
which is what syslogd presumably uses too. Notice that the "protocol"
is bogus in not defining the timezone. "protocol" because it hardly
deserves the name :-)

closes bin/1739

Reported by: Stefan Zehl <sec@wg.camelot.de>

BSD 4.4 Lite Usr.bin Sources