usr.sbin: 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

usr.sbin: 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/

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

Rename getline with get_line to avoid collision with getline(3)

When getline(3) in 2009 was added a _WITH_GETLINE guard has also been added.
This rename is made in preparation for the removal of this guard

Let lpr build with -Wmissing-variable-declarations.

Mark variables static where possible and place the uid/euid variables in
lp.h, so that we can compile-time enforce that these variables have the
same type.

Check the return error of set[ug]id. While this can never fail in the
current version of FreeBSD, this isn't guarenteed by the API. Custom
security modules, or future implementations of the setuid and setgid
may fail.

PR: bin/172289
PR: bin/172290
PR: bin/172291
Submittud by: Erik Cederstrand <erik@cederstrand.dk>
Discussed by: freebsd-security
Approved by: cperciva
MFC after: 1 week

Remove the advertising clause from UCB copyrighted files in usr.sbin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

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.

Fix end-of-line issues that can come up when `lpq' reads information
about a queue from a remote host. That remote host may use \r, \r\n,
or \n\r as the line-ending character. In some cases the remote host
will write a single line of information without *any* EOL sequence.

Translate all the non-unix EOL's to the standard newline, and make
sure the final line includes a terminating newline. Logic is also
added to translate all unprintable characters to '?', but that is
#if-ed out for now.

PR: bin/104731
MFC after: 3 weeks

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

Fix so all parts of lpd, lpc, lpq, and lprm will use the same algorithm
for calculating the job number for a job based on the control-file name.
We might receive cf-files named by other implementations of lpr, where
the job number shown by lpq would not match the job number that other
commands expected for the same name.

This also uses a newer algorithm for determining a job number, to avoid
problems caused when a control-file is named using an IP address, instead
of the hostname.

This also moved the declaration if isowner() from lp.h to rmjob.c. When I
went to change the parameters, I noticed that rmjob.c was the only source
file which uses it.

MFC after: 2 weeks

Get the 'sccsid' lines even closer to correct style(9) form. The
'#ifdef lint/#endif' around the lines should not have been removed.
Also add blank lines where one (per file) was missing.

Reviewed by: First part noticed by bde, blank lines noticed by me
MFC after: 15 days

Take advantage of the common_source/lp.cdefs.h file to change lpr
source to use __FBSDID() for setting rcsids. Also fix the format
of 'sccsid' lines to consistently match style(9) guidelines.

Reviewed by: discussed with bde and obrien
MFC after: 15 days

Fix buffer overflow in queue file handling.

Submitted by: millert@openbsd.org, gad
Reported by: X-Force <xforce@iss.net>

Replace calls to strncpy with calls to strlcpy, and remove the extra step
needed to ensure that the result is null-terminated when using strncpy().

MFC after: 8 days

Fix most of the warnings generated by compiling lpr with -Wnon-const-format,
often by just telling gcc that some internal routine is "__printflike"
(work done by Kris Kennaway <kris@FreeBSD.org>). Also fix the new warnings
which show up once gcc starts checking the "printf-like parameters" passed
to those routines.

MFC after: 1 week

Rename a few global variables which hold hostname-related values to be
more sensible/understandable. 'from'->'from_host' 'host'->'local_host'
'fromb'->'frombuf' 'fromhost'->'origin_host' and a local-variable
named 'host'->'hostbuf'. This fixes some compile-time warnings about
local variables shadowing global variables.

Other than renaming variables, the only actual code changes are to call
strlcpy() instead of strncpy() when setting those (renamed) variables,
and that 'from_ip' is now a strdup()-created buffer instead of being a
static buffer compiled in as 1025 bytes.

Reviewed by: freebsd-print@bostonradio.org (an earlier version)
MFC after: 1 week

Fix about 90-100 warnings one gets when trying to compile lpr&friends
with BDECFLAGS on, mainly by adding 'const' to parameters in a number
of routine declarations. While I'm at it, ANSI-fy all of the routine
declarations. The resulting object code is exactly the same after
this update as before it, with the exception of one unavoidable
change to lpd.o on freebsd/alpha.

Also added $FreeBSD$ line to lpc/extern.h lpc/lpc.h lptest/lptest.c

Reviewed by: /sbin/md5, and no feedback from freebsd-audit

Cosmetic change of a structure name.
Turn 'struct queue { q_time, q_name }' (loosely-speaking)
into 'struct jobqueue { job_time, job_cfname }'

Reviewed by: GAWollman

Make the standard 'lpq' output a little more informative when listing jobs
which have long names. Instead of just listing '...', try to list some
reasonable subset of the name (with a "..." to indicate something missing).

Reviewed by: freebsd-print@bostonradio.org (only a little review)

Fix 'lpq' so it can correctly display jobs which come from hosts using
'lprNG' (which writes control-lines in a different order than our lpr).

Reviewed by: freebsd-print@bostonradio.org

$Id$ -> $FreeBSD$

The printf type checking in gcc wants %qd to be a long long, so add
a cast in case off_t is not a long long (as on alpha).

Mega lpd/lpd upgrade, part I:

- Get rid of a lot of the static variables which were shared by
many routines and programs in the suite.
- Create an abstract interface to the printcap database, so that
other retrieval and iteration mechanisms could be developed
(e.g., YP, Hesiod, or automatic retrieval from a trusted server).
- Give each capability a human-readable name in addition to the historic
two-character one.
- Otherwise generally clean up a lot of dark corners. Many still remain.
- When submitting jobs, use the official login name record (from getlogin())
if there is one, rather than reverse-mapping the uid.

More to come...

Argl! Who's got the pointy hat these days? Hand it over to me, ASAP!

When setting an alarm that didn't trigger, i gotta clear it again
before going on. Hmpf!

One could be surprised how much bugs can still be found here...

Properlay clean the global RM variable if cgetstr() failed for it.
Otherwise, a connection attempt to a remote machine was made (and a
bogus result code printed) if a local printer followed a remote one in
printcap, and you did a `lpq -a', since checkremote() falsely assumed
the printer to be a remote one.

While i was at it, removed a gratuituous newline printed in front of
the remote machine's name, thus making the output more consistent (and
better machine-parseable) now.

Improve my hack from rev 1.6 of displayq.c, and make the TCP
connection timeout controllable by a new printcap(5) capability named
`ct' (connectiom timeout), defaulting to 120 seconds (which is the
default TCP connection timeout).

Would anybody see a problem with merging all this into RELENG_2_2?

common_source: staticize private version of warn() so to not conflict
with libc's version.

lpd: use getopt(3), err(3), add usage(), allow specification of a port #
on the command line as the documentation suggested for more than 10 years.

PR: docs/3290

Two minor, pedantic fixes from bde for my last pedantic fixes, plus
the following from recent OpenBSD changes. These changes (and all
I've made) should be merged back into 2.2 when they are vetted in
-current.

common.c:
OpenBSD 1.7: mickey: #if __STDC__ --> #ifdef __STDC__

displayq.c:
OpenBSD 1.8: deraadt: 1 byte oflows; millert

rmjob.c:
OpenBSD 1.8: deraadt: 1 byte oflows; millert

cmds.c:
OpenBSD 1.9: grr: restore traditional "all" keyword option - see lpc(8)
[[ This makes lpc status all work again -- imp ]]

printjob.c:
OpenBSD 1.17: deraadt: use sendmail -t
OpenBSD 1.16: mickey: #if __STDC__ --> #ifdef __STDC__
OpenBSD 1.15: deraadt: 1 byte oflow; Don.Lewis@tsc.tdk.com

recvjob.c:
OpenBSD 1.11: mickey: #if __STDC__ --> #ifdef __STDC__

lpr.c:
OpenBSD 1.19: mickey: #if __STDC__ --> #ifdef __STDC__

Obtained from: OpenBSD

Use setuid/seteuid around dangerous operations. Also a few buffer
overflow patches that were "near" to where these operations are taking
place. The buffer overflows are from OpenBSD. The setuid/seteuid patches
are from NetBSD by way of OpenBSD (they changed them a little), at least from
my read of the tree.

This is the first of a series of OpenBSD lpr/et al merges. It (and them)
should be merged back into 2.2 and/or 2.1 (if requested) branches when they
have been shaken out in -current.
Obtained from: OpenBSD

Imply a 10-second connection timeout when querying remote queues, to
prevent lpq from hanging indefinately (well, 10 minutes are for sure
counting as `indefinately' in this case).

Buffer overflow from OpenBSD:
Rev 1.4 deraadt: (partial from full commit, other files not done yet)
proactive bounds checking; help from millert
Rev 1.5 millert:
Possible buf oflow.

Plus minor style nits to keep the style police happy (I hope)
Obtained from: OpenBSD

Cleanup.

The removed files are no longer needed, they are actually labelled as
``Use only if you are not 4.4BSD''. (Yeah, the ol' crufty printcap.c
is really gone!)

Properly declare all external objects in files ending in .h, as
opposed to embed them into files ending in .c.

Pull a bunch of fixes from the 4.4BSD-Lite2 branch. It's really
surprising how many trivial errors there have been... :-)

Some more cleanup is needed, but i'd like to separate the Lite2 changes
from other work, that's why this goes into a different commit.

People with serial printers should see whether i have broken the stty-
style printcap options (i hope not).

Inspired by: Sergey Shkonda <serg@bcs1.bcs.zaporizhzhe.ua>

Fix my botched 4.4Lite2 import, and revert these files to their HEAD
versions.

Vendor-branch import of the 4.4BSD-Lite2 code for lpr. There are
several bugfixes in it that are worth considering.

Don't be alarmed about the import conflicts...

Obtained from: 4.4BSD-Lite2

BSD 4.4 Lite usr.sbin Sources