COPYING.OLD 10 KB

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  1. __________________________________________________________________________
  2. This is the Info-ZIP file COPYING (for UnZip), last updated 17 Jul 2000.
  3. __________________________________________________________________________
  4. FIRST NOTE:
  5. This file contains some details about the copyright history of
  6. contributions to the UnZip project.
  7. Additionally, it summarises some exceptions to the general BSD-like
  8. copyright found in LICENSE that covers our generic code and most of
  9. the system specific ports.
  10. Please read LICENSE first to find out what is allowed to do with
  11. Info-ZIP's UnZip code.
  12. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  13. There are currently two explicit copyrights on portions of UnZip
  14. code (at least, of which Info-ZIP is aware):
  15. Jim Luther's Mac OS File Manager interface code; and Christopher Evans'
  16. MacBinaryIII coding code (for the MacOS port).. These copyrights
  17. are discussed in more detail below.
  18. All remaining code is now (starting with UnZip version 5.41) covered
  19. by the new Info-ZIP license. For details, please read the acompaning
  20. file LICENSE. The terms and conditions in this license supersede the
  21. copyright conditions of the contributions by Igor Mandrichenko
  22. (vms/vms.c), Greg Roelofs (zipinfo.c, new version of unshrink.c),
  23. Mike White (Windows DLL code in "windll/*"), Steve P. Miller (Pocket
  24. UnZip GUI "wince/*"), and Mark Adler (inflate/explode decompresseion
  25. core routines, previously put into the public domain). All these
  26. Info-ZIP contributors (or "primary" authors) have permitted us to
  27. replace their copyright notes by the Info-ZIP License.
  28. Frequently Asked Questions regarding (re)distribution of Zip and UnZip
  29. are near the end of this file.
  30. There are no known patents on any of the code in UnZip. Unisys
  31. claims a patent on LZW encoding and on LZW decoding _in an apparatus
  32. that performs LZW encoding_, but the patent appears to exempt a stand-
  33. alone decoder (as in UnZip's unshrink.c). Unisys has publicly claimed
  34. otherwise, but the issue has never been tested in court. Since this
  35. point is unclear, unshrinking is not enabled by default. It is the
  36. responsibility of the user to make his or her peace with Unisys and
  37. its licensing requirements. (unshrink.c may be removed from future
  38. releases altogether.)
  39. __________________________________________________________________________
  40. The original unzip source code has been extensively modified and
  41. almost entirely rewritten (changes include random zipfile access
  42. rather than sequential; replacement of unimplode() with explode();
  43. replacement of old unshrink() with new (unrelated) unshrink(); re-
  44. placement of output routines; addition of inflate(), wildcards,
  45. filename-mapping, text translation, ...; etc.). As far as we can
  46. tell, only the core code of the unreduce method remained substantially
  47. similar to Mr. Smith's original source. As of UnZip 5.42, the complete
  48. core code is now covered by the Info-ZIP Licence. Therefore, support
  49. for the reduce method has been removed.
  50. The drop of the reduce method should only affect some test archives,
  51. reducing was never used in any publically distributed Zip program.
  52. For pathologic cases where support for reduced archive entries is
  53. needed, the unreduce code copyrighted by Samuel H. Smith is available
  54. as a separate distribution (the restricted copyright of this code is
  55. cited below in the "historical" section).
  56. The following copyright applies to the Mac OS File Manager interface code
  57. (macos/source/macstuff.[ch]), distributed with UnZip 5.4 and later:
  58. * MoreFiles
  59. *
  60. * A collection of File Manager and related routines
  61. *
  62. * by Jim Luther (Apple Macintosh Developer Technical Support Emeritus)
  63. * with significant code contributions by Nitin Ganatra
  64. * (Apple Macintosh Developer Technical Support Emeritus)
  65. * Copyright 1992-1998 Apple Computer, Inc.
  66. * Portions copyright 1995 Jim Luther
  67. * All rights reserved.
  68. * The Package "More Files" is distributed under the following
  69. * license terms:
  70. *
  71. * "You may incorporate this sample code into your
  72. * applications without restriction, though the
  73. * sample code has been provided "AS IS" and the
  74. * responsibility for its operation is 100% yours.
  75. * However, what you are not permitted to do is to
  76. * redistribute the source as "DSC Sample Code" after
  77. * having made changes. If you're going to
  78. * redistribute the source, we require that you make
  79. * it clear in the source that the code was descended
  80. * from Apple Sample Code, but that you've made
  81. * changes."
  82. The usage terms of this copyright note are compatible with the
  83. Info-ZIP license, they do not add further restrictions.
  84. The following copyright applies to the Mac OS "macbin3" decoding code
  85. (extra field compatibility with ZipIt):
  86. * MacBinaryIII.h
  87. *
  88. * Copyright 1997 Christopher Evans (cevans@poppybank.com)
  89. *
  90. * Basic encoding and decoding of Macintosh files to the
  91. * MacBinary III spec.
  92. * ----------------------------------------------------------------------
  93. * This source is copyrighted by Christopher Evans (cevans@poppybank.com)
  94. * (available at ftp://ftp.lazerware.com/MacBinaryIII_src_C.sit
  95. * homepage of Leonard Rosenthol leonardr@netcom.com)
  96. This copyright note does not contain any usage terms. So, we assume
  97. that this code is freely reusable until we are proved wrong...
  98. --------------------------------------------------------------------------
  99. The remaining copyright notes have been superseeded by the new
  100. Info-ZIP license, with explicit permission from the respective
  101. original authors. They are cited here for historical reasons,
  102. only:
  103. The following copyright applies to the full-featured unreduce.c
  104. (now distributed separately):
  105. * Copyright 1989 Samuel H. Smith; All rights reserved
  106. *
  107. * Do not distribute modified versions without my permission.
  108. * Do not remove or alter this notice or any other copyright notice.
  109. * If you use this in your own program you must distribute source code.
  110. * Do not use any of this in a commercial product.
  111. Regarding the first stipulation, Mr. Smith was tracked down in southern
  112. California some years back [Samuel H. Smith, The Tool Shop; as of mid-
  113. May 1994, (213) 851-9969 (voice), (213) 887-2127(?) (subscription BBS),
  114. 71150.2731@compuserve.com]:
  115. "He says that he thought that whoever contacted him understood that
  116. he has no objection to the Info-ZIP group's inclusion of his code.
  117. His primary concern is that it remain freely distributable, he said."
  118. Despite the fact that our "normal" code has been entirely rewritten
  119. and by default no longer contains any of Mr. Smith's code, Info-ZIP
  120. remains indebted and grateful to him. We hope he finds our contribu-
  121. tions as useful as we have his.
  122. Note that the third and fourth stipulations still apply to any com-
  123. pany that wishes to incorporate the unreduce code into its products;
  124. if you wish to do so, you must contact Mr. Smith directly regarding
  125. licensing.
  126. -----
  127. The following copyright applied to most of the VMS code in vms.c,
  128. distributed with UnZip version 4.2 and later:
  129. * Copyright (c) 1992-93 Igor Mandrichenko.
  130. * Permission is granted to any individual or institution to use, copy,
  131. * or redistribute this software so long as all of the original files
  132. * are included unmodified and that this copyright notice is retained.
  133. -----
  134. The following copyright applied to the new version of unshrink.c,
  135. distributed with UnZip version 5.2 and later:
  136. * Copyright (c) 1994 Greg Roelofs.
  137. * Permission is granted to any individual/institution/corporate
  138. * entity to use, copy, redistribute or modify this software for
  139. * any purpose whatsoever, subject to the conditions noted in the
  140. * Frequently Asked Questions section below, plus one additional
  141. * condition: namely, that my name not be removed from the source
  142. * code. (Other names may, of course, be added as modifications
  143. * are made.) Corporate legal staff (like at IBM :-) ) who have
  144. * problems understanding this can contact me through Zip-Bugs...
  145. -----
  146. The following copyright applied to the Windows DLL code (windll/*),
  147. distributed with UnZip version 5.2 and later:
  148. * Copyright (c) 1996 Mike White.
  149. * Permission is granted to any individual or institution to use,
  150. * copy, or redistribute this software so long as all of the original
  151. * files are included, that it is not sold for profit, and that this
  152. * copyright notice is retained.
  153. -----
  154. The following copyright applied to the Windows CE GUI port, ``Pocket
  155. UnZip,'' distributed with UnZip version 5.3 and later:
  156. * All the source files for Pocket UnZip, except for components
  157. * written by the Info-ZIP group, are copyrighted 1997 by Steve P.
  158. * Miller. The product "Pocket UnZip" itself is property of the
  159. * author and cannot be altered in any way without written consent
  160. * from Steve P. Miller.
  161. -----
  162. The remaining code was written by many people associated with the
  163. Info-ZIP group, with large contributions from (but not limited to):
  164. Greg Roelofs (overall program logic, ZipInfo, unshrink, filename
  165. mapping/portability, etc.), Mark Adler (inflate, explode, funzip),
  166. Kai Uwe Rommel (OS/2), John Bush and Paul Kienitz (Amiga), Antoine
  167. Verheijen (Macintosh), Hunter Goatley (more VMS), Mike White (Windows
  168. DLLs), Christian Spieler (overall logic, optimization, VMS, etc.) and
  169. others. See the file CONTRIBS in the source distribution for a much
  170. more complete list of contributors.
  171. The decompression core code for the deflate method (inflate.[ch],
  172. explode.c) was originally written by Mark Adler who submitted it
  173. as public domain code.
  174. --------------------------------------------------------------------------