"SfR Fresh" - the SfR Freeware/Shareware Archive

Member "vnc_winsrc/vncviewer/zlib/README" of archive tightvnc-1.3.9_winsrc.zip:

    1 zlib 1.1.4 is a general purpose data compression library.  All the code
    2 is thread safe.  The data format used by the zlib library
    3 is described by RFCs (Request for Comments) 1950 to 1952 in the files 
    4 http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
    5 format) and rfc1952.txt (gzip format). These documents are also available in
    6 other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
    7 
    8 All functions of the compression library are documented in the file zlib.h
    9 (volunteer to write man pages welcome, contact jloup@gzip.org). A usage
   10 example of the library is given in the file example.c which also tests that
   11 the library is working correctly. Another example is given in the file
   12 minigzip.c. The compression library itself is composed of all source files
   13 except example.c and minigzip.c.
   14 
   15 To compile all files and run the test program, follow the instructions
   16 given at the top of Makefile. In short "make test; make install"
   17 should work for most machines. For Unix: "./configure; make test; make install"
   18 For MSDOS, use one of the special makefiles such as Makefile.msc.
   19 For VMS, use Make_vms.com or descrip.mms.
   20 
   21 Questions about zlib should be sent to <zlib@gzip.org>, or to
   22 Gilles Vollant <info@winimage.com> for the Windows DLL version.
   23 The zlib home page is http://www.zlib.org or http://www.gzip.org/zlib/
   24 Before reporting a problem, please check this site to verify that
   25 you have the latest version of zlib; otherwise get the latest version and
   26 check whether the problem still exists or not.
   27 
   28 PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html
   29 before asking for help.
   30 
   31 Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
   32 issue of  Dr. Dobb's Journal; a copy of the article is available in
   33 http://dogma.net/markn/articles/zlibtool/zlibtool.htm
   34 
   35 The changes made in version 1.1.4 are documented in the file ChangeLog.
   36 The only changes made since 1.1.3 are bug corrections:
   37 
   38 - ZFREE was repeated on same allocation on some error conditions.
   39   This creates a security problem described in
   40   http://www.zlib.org/advisory-2002-03-11.txt
   41 - Returned incorrect error (Z_MEM_ERROR) on some invalid data
   42 - Avoid accesses before window for invalid distances with inflate window
   43   less than 32K.
   44 - force windowBits > 8 to avoid a bug in the encoder for a window size
   45   of 256 bytes. (A complete fix will be available in 1.1.5).
   46 
   47 The beta version 1.1.5beta includes many more changes. A new official
   48 version 1.1.5 will be released as soon as extensive testing has been
   49 completed on it.
   50 
   51 
   52 Unsupported third party contributions are provided in directory "contrib".
   53 
   54 A Java implementation of zlib is available in the Java Development Kit
   55 http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
   56 See the zlib home page http://www.zlib.org for details.
   57 
   58 A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk>
   59 is in the CPAN (Comprehensive Perl Archive Network) sites
   60 http://www.cpan.org/modules/by-module/Compress/
   61 
   62 A Python interface to zlib written by A.M. Kuchling <amk@magnet.com>
   63 is available in Python 1.5 and later versions, see
   64 http://www.python.org/doc/lib/module-zlib.html
   65 
   66 A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com>
   67 is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
   68 
   69 An experimental package to read and write files in .zip format,
   70 written on top of zlib by Gilles Vollant <info@winimage.com>, is
   71 available at http://www.winimage.com/zLibDll/unzip.html
   72 and also in the contrib/minizip directory of zlib.
   73 
   74 
   75 Notes for some targets:
   76 
   77 - To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
   78   and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
   79   The zlib DLL support was initially done by Alessandro Iacopetti and is
   80   now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL
   81   home page at http://www.winimage.com/zLibDll
   82 
   83   From Visual Basic, you can call the DLL functions which do not take
   84   a structure as argument: compress, uncompress and all gz* functions.
   85   See contrib/visual-basic.txt for more information, or get
   86   http://www.tcfb.com/dowseware/cmp-z-it.zip
   87 
   88 - For 64-bit Irix, deflate.c must be compiled without any optimization.
   89   With -O, one libpng test fails. The test works in 32 bit mode (with
   90   the -n32 compiler flag). The compiler bug has been reported to SGI.
   91 
   92 - zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1   
   93   it works when compiled with cc.
   94 
   95 - on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1
   96   is necessary to get gzprintf working correctly. This is done by configure.
   97 
   98 - zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
   99   with other compilers. Use "make test" to check your compiler.
  100 
  101 - gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.
  102 
  103 - For Turbo C the small model is supported only with reduced performance to
  104   avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
  105 
  106 - For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
  107   Per Harald Myrvang <perm@stud.cs.uit.no>
  108 
  109 
  110 Acknowledgments:
  111 
  112   The deflate format used by zlib was defined by Phil Katz. The deflate
  113   and zlib specifications were written by L. Peter Deutsch. Thanks to all the
  114   people who reported problems and suggested various improvements in zlib;
  115   they are too numerous to cite here.
  116 
  117 Copyright notice:
  118 
  119  (C) 1995-2002 Jean-loup Gailly and Mark Adler
  120 
  121   This software is provided 'as-is', without any express or implied
  122   warranty.  In no event will the authors be held liable for any damages
  123   arising from the use of this software.
  124 
  125   Permission is granted to anyone to use this software for any purpose,
  126   including commercial applications, and to alter it and redistribute it
  127   freely, subject to the following restrictions:
  128 
  129   1. The origin of this software must not be misrepresented; you must not
  130      claim that you wrote the original software. If you use this software
  131      in a product, an acknowledgment in the product documentation would be
  132      appreciated but is not required.
  133   2. Altered source versions must be plainly marked as such, and must not be
  134      misrepresented as being the original software.
  135   3. This notice may not be removed or altered from any source distribution.
  136 
  137   Jean-loup Gailly        Mark Adler
  138   jloup@gzip.org          madler@alumni.caltech.edu
  139 
  140 If you use the zlib library in a product, we would appreciate *not*
  141 receiving lengthy legal documents to sign. The sources are provided
  142 for free but without warranty of any kind.  The library has been
  143 entirely written by Jean-loup Gailly and Mark Adler; it does not
  144 include third-party code.
  145 
  146 If you redistribute modified sources, we would appreciate that you include
  147 in the file ChangeLog history information documenting your changes.