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

Purge more stray embedded $FreeBSD$ strings

These do not use __FBSDID but instead use bare char arrays.

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41957

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 blacklist support to fingerd

Reviewed by: rpaulo
Approved by: rpaulo
Relnotes: YES
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D5916

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.

Forgot to initialize the debug variable.

MFC after: 2 weeks

Add a debugging option (-d)
Add a -k option which fingerd(8) passes through to finger(1).

MFC after: 2 weeks

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.

Mark functions as __dead2 in order to help the LLVM static checker
understand which code paths aren't possible.

This commit eliminates 117 false positive bug reports of the form
"allocate memory; error out if pointer is NULL; use pointer".

Fix most cases where the address of an int is passed to a function expecting a
socklen_t * argument.

Make fingerd(8) WARNS2 clean.

Mark the logerr() function __printflike().

MFC after: 3 days

When the -p flag is specified, set an environment variable to the name
of the remote host (or rather, the name as mangled by realhostname_sa())
so that the process can use it to behave differently depending on the
origin on the request. We use this to implement rudimentary visibility
control on our user information.

Make sure that the child process's standard error goes through the same
NVT-ASCII filter as is applied to the standard output.

Don't attempt to call logerr() from the child since stdio is not safe in
a vforked process. Just write a message to fd 2 instead. (Ideally, the
parent would open two pipes, and siphon off our stderr to some place less
public, but I have not attempted to do so in this implementation.)

Add used include of <string.h>.
Delete unused include of <strings.h>.

Revert revision 1.11. FreeBSD/alpha has suppport for T/TCP.

MFC after: 1 week

o Eliminate __P
o Use new-style function definitions
o remove some !__STDC__ code
o eliminate register

Terminate the array of execv(3) pointers by a NULL pointer in the edge case.

PR: bin/30913
Submitted by: Dimitri Lommers <dimitri@hinttech.com>

Check malloc() and strdup() return values

Reviewed by: kris

Support logging for IPv6 remote host.

Approved by: jkh

PR: bin/16789
Submitted by: Ben Smithurst <ben@scientia.demon.co.uk

$Id$ -> $FreeBSD$

Identify illegal switches, don't print them as '?' in the error..

Fix the size of rhost, don't forget to NUL terminate
it and use brackets for sizeof.
Requested by: bde

Use realhostname() rather than various combinations of
gethostbyaddr() & gethostbyname().

Remove brokeness in ftpd for hosts of MAXHOSTNAMELEN length.

NetBSD kernels don't support TCP_NOPUSH, so on alpha don't try setting
this socket option. This is temporary code while the alpha still uses
NetBSD socket code in the kernel.

Add const to copyright string. Put sccsid under #if 0/#endif control.

Log the request from the remote side, in addition to it having happened.

Reviewed by: julian

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

Revert $FreeBSD$ to $Id$

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.

Implement server-side transaction TCP. (Has no effect on non-TTCP clients.)

Fix the bug which allowed people to avoid the "-s" (secure) bug.
Now, "finger" is invoked with "--" before the first network supplied
argument, so the "--" and "-l" hacks will be stopped.

Remove trailing whitespace.

fixed spelling error.

BSD 4.4 Lite Libexec Sources