usr.bin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

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

fileargs_init() sets errno on failure.

Sponsored by: The FreeBSD Foundation

cap_fileargs: chase r346315, update fileargs_init in consumers

Reported by: ci.freebsd.org (8 times so far)
MFC after: 3 weeks
MFC with: r346315
Sponsored by: The FreeBSD Foundation

brandelf: capsicumize it

brandelf: fix style nits

No functional change intended.

Reviewed by: emaste, markj
Differential Revision: https://reviews.freebsd.org/D17966

various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

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.

No functional change intended.

Fix warning when compiling with gcc46:
error: variable 'verbose' set but not use

Approved by: dim
MFC after: 3 days

Reencode files from latin1 to UTF-8.

This makes a tiny percentage of entries in calendars ugly for latin1
users, but fixes them for UTF-8 users.

This badly needs a solution involving locale-dependent re-encoding.

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.

Sync program's usage() with manpage's SYNOPSIS.

Make brandelf(1)'s -t "ABI format" case insensitive, as the ABI value
given is looked up in a table and no longer stored literally in the
header.

Submitted by: Divacky Roman <xdivac02@stud.fit.vutbr.cz
PR: 80499
MFC After: 1 month

Fix typo in the BSD copyright: s/withough/without/

Spotted and suggested by: des
MFC after: 3 weeks

Style improvements recommended by Bruce as a follow up to some
of the recent WARNS commits. The idea is:

1) FreeBSD id tags should follow vendor tags.
2) Vendor tags should not be compiled (though copyrights probably should).
3) There should be no blank line between including cdefs and __FBSDIF.

Style fixes.
Use __FBSDID().
Be consistent WRT ANSI use.

OK'ed by: obrien

Quiet compiler warnings by making `WARNS 2' clean.

Submitted by: Mike Barcroft <mike@q9media.com>

Set maintainer to myself. This needs to stay in sync with what Buntils
does, and it would be best to pass functionality changes thru me to make
sure future plans are taken into account.

Fix $FreeBSD$ style.

* include/elf.h has been repo copied to include/elf-hints.h, and it no
longer includes machine/elf.h.
* consumers of elf.h now use the minimalist elf header possible.

This change is motivated by Binutils 2.11.0 and too much clashing over
our base elf headers and the Binutils elf headers.

Fix typo: compatability -> compatibility.

Compatability is not an existing english word.

fix fd leak by close(fd) at end of loop.

The SVR4 module calls itself ELFOSABI_SOLARIS, and who am I to disagree
if it runs my Solaris binaries? Add the missing "Solaris" type here
so that binaries may be branded with it rather than the seemingly-
defunct ELFOSABI_SVR4.

Change our ELF binary branding to something more acceptable to the Binutils
maintainers.

After we established our branding method of writing upto 8 characters of
the OS name into the ELF header in the padding; the Binutils maintainers
and/or SCO (as USL) decided that instead the ELF header should grow two new
fields -- EI_OSABI and EI_ABIVERSION. Each of these are an 8-bit unsigned
integer. SCO has assigned official values for the EI_OSABI field. In
addition to this, the Binutils maintainers and NetBSD decided that a better
ELF branding method was to include ABI information in a ".note" ELF
section.

With this set of changes, we will now create ELF binaries branded using
both "official" methods. Due to the complexity of adding a section to a
binary, binaries branded with ``brandelf'' will only brand using the
EI_OSABI method. Also due to the complexity of pulling a section out of an
ELF file vs. poking around in the ELF header, our image activator only
looks at the EI_OSABI header field.

Note that a new kernel can still properly load old binaries except for
Linux static binaries branded in our old method.

*
* For a short period of time, ``ld'' will also brand ELF binaries
* using our old method. This is so people can still use kernel.old
* with a new world. This support will be removed before 5.0-RELEASE,
* and may not last anywhere upto the actual release. My expiration
* time for this is about 6mo.
*

Make brandelf explain itself a little better on error.
Also, at Boris' suggestion, add -l option to list known
ELF types.

PR: bin/15285
Reviewed by: bp

$Id$ -> $FreeBSD$

Added "SVR4" as an acceptable brand

Add a forgotten 'static'.

Make brandelf test for known brands, and introduce a '-f' option to
bypass the testing.

Partially submitted by: Brian Feldman <green@feldman.dyn.ml.org>

Open the file r/o if looking only. Make the error message more useful.

PR: bin/3283
Submitted by: Martin Kammerhofer <dada@freepass.tu-graz.ac.at>

Use err(3). Typo fix in usage string.

Fill out the ELF header files to make them more or less complete.
Fix a macro name that was misspelled both in brandelf.c and
imgact_elf.h.

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

Revert $FreeBSD$ to $Id$

Add a manpage for brandelf(1). Minor stylistic fixes, and a buffer
overrun fix, too.

Submitted by: John-Mark Gurney <jmg@nike.efn.org>

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.

Utility to "brand" ELF binaries.
Man page to come...
For now use: <brandelf -t Linux linuxbin> to brand, and just
<brandelf> to verify branding on a ELF file. FreeBSD native is
set with <brandelf -t FreeBSD freebsdbin>.