slackbuilds_ponce/system/mksh/TaC-mksh.txt

Terms and Conditions - The MirBSD Korn Shell
============================================

The MirBSD Korn Shell (mksh) consists of a number of "source" files,
which are provided by upstream in a number of places. This file will
list the files belonging to mksh or being part of it and the licence
terms and conditions that apply to them, in one single central place
for packagers' convenience. This list aims to be authoritative. (Yet
as it was compiled by a human, there may be bugs, please report them
if any are found. We don't think so though.)

All paths are relative to The MirOS Project's CVS repository.


The following files form The MirBSD Korn Shell R39c:
- build system, testsuite
  * mksh/Build.sh
  * mksh/check.pl
  * mksh/check.t
- documentation, configuration
  * mksh/dot.mkshrc
  * mksh/mksh.1
- source code
  * mksh/edit.c
  * mksh/emacsfn.h
  * mksh/eval.c
  * mksh/exec.c
  * mksh/expr.c
  * mksh/funcs.c
  * mksh/histrap.c
  * mksh/jobs.c
  * mksh/lalloc.c
  * mksh/lex.c
  * mksh/main.c
  * mksh/misc.c
  * mksh/sh.h
  * mksh/sh_flags.h
  * mksh/shf.c
  * mksh/syn.c
  * mksh/tree.c
  * mksh/var.c
  * mksh/var_spec.h
- upstream provided packaging
  * contrib/hosted/tg/deb/mksh/debian/** (Debian)
  * mksh/Makefile (MirBSD only, not part of mksh)
  * ports/shells/mksh/DEINSTALL
  * ports/shells/mksh/DESCR (official)
  * ports/shells/mksh/INSTALL
  * ports/shells/mksh/Makefile
  * ports/shells/mksh/PLIST
  * ports/shells/mksh/distinfo (official)
  * src/distrib/special/mksh/Makefile (for the MirBSD installer)
- website (informal)
  * www/data/tag_mksh.cfg (internal)
  * www/files/TaC-mksh.txt (this file)
  * www/pics/mksh.svg (logo source code)
  * www/pics/mksh128x100.png (logo compiled version)
  * www/src/mksh.hts (primary webpage)
  * www/src/mksh_bld.hts (supplemental webpage)
  * www/src/mksh_old.hts (supplemental webpage)

All of these files are covered by The MirOS Licence (Appendix A) ex-
cept the upstream provided packaging, some of which were copied from
other places (specifically some of the Debian packaging) and most of
which do not require a copyright licence.

The mksh author acknowledges the contribution from the Public Domain
Korn Shell and everyone who contributed to its various incarnations,
including patches, which have found their way into mksh (not all are
even known, but they gave up copyright anyway). The patches and sug-
gestions from other developers, users and other shells' authors were
also welcome.


The following files belong to mksh and are distributed inside of its
distfile, but are not part of it. They are provided for convenience,
because they are required on many operating environments for mksh or
some of its features to function:
- source code
  * mksh/setmode.c (needed for the optional mknod builtin)
  * mksh/strlcpy.c (always needed)

These files are covered by seperate licences in addition (Appendices
B and C). Some operating environments already provide their functio-
nality, such as the BSDs and OSX libc, or the Debian/freedesktop.org
libbsd package. The files are not compiled into the resulting binary
if their respective functionality is already provided.


The following files belong to mksh in a less close way, as they pro-
vide additional functionality less closely coupled or not always de-
sired. These are not included in the mksh distfile:
- source code
  * contrib/code/Snippets/arc4random.c (somewhat portable arc4random
    implementation on top of /dev/urandom - for $RANDOM reads)
  * contrib/hosted/tg/arc4rootdom.c (an even less portable implemen-
    tation of a4r_pushb for *WRT/Android/... - for $RANDOM writes)
  * contrib/hosted/tg/deb/klibc/arc4random.c (part of my klibc patch
    providing arc4random API on top of jrand48 for small size)
  * src/usr.bin/printf/printf.c (slightly modified UCB printf utili-
    ty code - for the optional, undesired printf(1) builtin)
    *DO NOT* INCLUDE printf AS A SHELL BUILT-IN UNLESS YOU ABSOLUTE-
    LY MUST (otherwise, the preferrable /usr/bin/printf is called)

The arc4rootdom.c file is covered by the MirOS Licence (Appendix A).
The klibc/arc4random.c file is also covered by The MirOS Licence but
dual-licenced with klibc's as we hope it gets included. The printf.c
file is covered by the UCB's three-clause BSD licence (Appendix B).

The arc4random.c file is a conglomerate of The MirOS Licence as well
as another but many people have touched this code so there are other
versions of it around with differing terms. See Appendix D for ours.


The MirOS Licence also applies as a collective-work copyright on The
MirBSD Korn Shell.

Note that these appendices may represent the terms and conditions of
more than one file, hence the actual wording of the files was folded
into one representation, with different copyright holders and years,
separated if merging was undesirable.


Appendix A - The MirOS Licence (OSI approved)
==============================

The MirBSD Korn Shell (mksh) is
Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
	Thorsten "mirabilos" Glaser <tg@mirbsd.org>
All rights reserved.

The mksh logo is
Copyright © 2008, 2009
	Lukas U. <smultron@midnightbsd.org>
Copyright © 2008, 2009
	Thorsten "mirabilos" Glaser <tg@mirbsd.org>

The arc4random for *WRT, Android, klibc functions are
Copyright © 2009
	Thorsten "mirabilos" Glaser <tg@mirbsd.org>


Provided that these terms and disclaimer and all copyright notices
are retained or reproduced in an accompanying document, permission
is granted to deal in this work without restriction, including un‐
limited rights to use, publicly perform, distribute, sell, modify,
merge, give away, or sublicence.

This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
the utmost extent permitted by applicable law, neither express nor
implied; without malicious intent or gross negligence. In no event
may a licensor, author or contributor be held liable for indirect,
direct, other damage, loss, or other issues arising in any way out
of dealing in the work, even if advised of the possibility of such
damage or existence of a defect, except proven that it results out
of said person’s immediate fault when using the work as intended.


Appendix B - The UCB (3-clause BSD) licence (OSI approved)
===========================================

printf.c is
Copyright (c) 1989
	The Regents of the University of California.
All rights reserved.

setmode.c is
Copyright (c) 1989, 1993, 1994
	The Regents of the University of California.
All rights reserved.

This code is derived from software contributed to Berkeley by
Dave Borman at Cray Research, Inc.


Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.


Appendix C - ISC Licence (OSI approved)
========================

strlcpy.c is
Copyright (c) 2006, 2008, 2009
	Thorsten Glaser <tg@mirbsd.org>
Copyright (c) 1998
	Todd C. Miller <Todd.Miller@courtesan.com>


Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.


Appendix D - Licence of mircvs://contrib/code/Snippets/arc4random.c
===================================================================

/*-
 * Arc4 random number generator for OpenBSD.
 * Copyright 1996 David Mazieres <dm@lcs.mit.edu>.
 *
 * Modification and redistribution in source and binary forms is
 * permitted provided that due credit is given to the author and the
 * OpenBSD project by leaving this copyright notice intact.
 */

/*-
 * This code is derived from section 17.1 of Applied Cryptography,
 * second edition, [...]
 *
 * RC4 is a registered trademark of RSA Laboratories.
 */

/*-
 * Modified by Robert Connolly from OpenBSD lib/libc/crypt/arc4random.c v1.11.
 * This is arc4random(3) using urandom.
 */

arc4random_uniform() is derived from code written by
	Damien Miller <djm@openbsd.org>
published under the ISC licence (see Appendix C).

arc4random.c additionally is Copyright © 2008, 2009
	Thorsten Glaser <tg@mirbsd.org>
and covered by the MirOS Licence (see Appendix A).


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