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locks; strict;
comment	@# @;


1.7
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branches;
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desc
@@


1.7
log
@## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/250261
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
@
text
@ZLIB DATA COMPRESSION LIBRARY

zlib 1.2.8 is a general purpose data compression library.  All the code is
thread safe.  The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files
http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
rfc1952 (gzip format).

All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact zlib@@gzip.org).  A usage example
of the library is given in the file test/example.c which also tests that
the library is working correctly.  Another example is given in the file
test/minigzip.c.  The compression library itself is composed of all source
files in the root directory.

To compile all files and run the test program, follow the instructions given at
the top of Makefile.in.  In short "./configure; make test", and if that goes
well, "make install" should work for most flavors of Unix.  For Windows, use
one of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
make_vms.com.

Questions about zlib should be sent to <zlib@@gzip.org>, or to Gilles Vollant
<info@@winimage.com> for the Windows DLL version.  The zlib home page is
http://zlib.net/ .  Before reporting a problem, please check this site to
verify that you have the latest version of zlib; otherwise get the latest
version and check whether the problem still exists or not.

PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.

Mark Nelson <markn@@ieee.org> wrote an article about zlib for the Jan.  1997
issue of Dr.  Dobb's Journal; a copy of the article is available at
http://marknelson.us/1997/01/01/zlib-engine/ .

The changes made in version 1.2.8 are documented in the file ChangeLog.

Unsupported third party contributions are provided in directory contrib/ .

zlib is available in Java using the java.util.zip package, documented at
http://java.sun.com/developer/technicalArticles/Programming/compression/ .

A Perl interface to zlib written by Paul Marquess <pmqs@@cpan.org> is available
at CPAN (Comprehensive Perl Archive Network) sites, including
http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .

A Python interface to zlib written by A.M. Kuchling <amk@@amk.ca> is
available in Python 1.5 and later versions, see
http://docs.python.org/library/zlib.html .

zlib is built into tcl: http://wiki.tcl.tk/4610 .

An experimental package to read and write files in .zip format, written on top
of zlib by Gilles Vollant <info@@winimage.com>, is available in the
contrib/minizip directory of zlib.


Notes for some targets:

- For Windows DLL versions, please see win32/DLL_FAQ.txt

- For 64-bit Irix, deflate.c must be compiled without any optimization. With
  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
  compiler flag). The compiler bug has been reported to SGI.

- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
  when compiled with cc.

- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
  necessary to get gzprintf working correctly. This is done by configure.

- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
  other compilers. Use "make test" to check your compiler.

- gzdopen is not supported on RISCOS or BEOS.

- For PalmOs, see http://palmzlib.sourceforge.net/


Acknowledgments:

  The deflate format used by zlib was defined by Phil Katz.  The deflate and
  zlib specifications were written by L.  Peter Deutsch.  Thanks to all the
  people who reported problems and suggested various improvements in zlib; they
  are too numerous to cite here.

Copyright notice:

 (C) 1995-2013 Jean-loup Gailly and Mark Adler

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

  Jean-loup Gailly        Mark Adler
  jloup@@gzip.org          madler@@alumni.caltech.edu

If you use the zlib library in a product, we would appreciate *not* receiving
lengthy legal documents to sign.  The sources are provided for free but without
warranty of any kind.  The library has been entirely written by Jean-loup
Gailly and Mark Adler; it does not include third-party code.

If you redistribute modified sources, we would appreciate that you include in
the file ChangeLog history information documenting your changes.  Please read
the FAQ for more information on the distribution of modified source versions.
@


1.6
log
@SVN rev 237410 on 2012-06-21 21:47:08Z by delphij

MFV: Update zlib to 1.2.7.

(x86 assembler optimization disabled for now because it
requires the new .cfi_* directives that is not supported
by base system binutils).

MFC after:	1 week
@
text
@d3 1
a3 1
zlib 1.2.7 is a general purpose data compression library.  All the code is
d34 1
a34 1
The changes made in version 1.2.7 are documented in the file ChangeLog.
d87 1
a87 1
 (C) 1995-2012 Jean-loup Gailly and Mark Adler
@


1.6.2.1
log
@file README was added on branch RELENG_8_4 on 2013-03-28 13:03:23 +0000
@
text
@d1 115
@


1.6.2.2
log
@## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/248810
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
@
text
@a0 125
ZLIB DATA COMPRESSION LIBRARY

zlib 1.2.3 is a general purpose data compression library.  All the code is
thread safe.  The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files
http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
and rfc1952.txt (gzip format). These documents are also available in other
formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html

All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact zlib@@gzip.org). A usage example
of the library is given in the file example.c which also tests that the library
is working correctly. Another example is given in the file minigzip.c. The
compression library itself is composed of all source files except example.c and
minigzip.c.

To compile all files and run the test program, follow the instructions given at
the top of Makefile. In short "make test; make install" should work for most
machines. For Unix: "./configure; make test; make install". For MSDOS, use one
of the special makefiles such as Makefile.msc. For VMS, use make_vms.com.

Questions about zlib should be sent to <zlib@@gzip.org>, or to Gilles Vollant
<info@@winimage.com> for the Windows DLL version. The zlib home page is
http://www.zlib.org or http://www.gzip.org/zlib/ Before reporting a problem,
please check this site to verify that you have the latest version of zlib;
otherwise get the latest version and check whether the problem still exists or
not.

PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html before asking
for help.

Mark Nelson <markn@@ieee.org> wrote an article about zlib for the Jan. 1997
issue of  Dr. Dobb's Journal; a copy of the article is available in
http://dogma.net/markn/articles/zlibtool/zlibtool.htm

The changes made in version 1.2.3 are documented in the file ChangeLog.

Unsupported third party contributions are provided in directory "contrib".

A Java implementation of zlib is available in the Java Development Kit
http://java.sun.com/j2se/1.4.2/docs/api/java/util/zip/package-summary.html
See the zlib home page http://www.zlib.org for details.

A Perl interface to zlib written by Paul Marquess <pmqs@@cpan.org> is in the
CPAN (Comprehensive Perl Archive Network) sites
http://www.cpan.org/modules/by-module/Compress/

A Python interface to zlib written by A.M. Kuchling <amk@@amk.ca> is
available in Python 1.5 and later versions, see
http://www.python.org/doc/lib/module-zlib.html

A zlib binding for TCL written by Andreas Kupries <a.kupries@@westend.com> is
availlable at http://www.oche.de/~akupries/soft/trf/trf_zip.html

An experimental package to read and write files in .zip format, written on top
of zlib by Gilles Vollant <info@@winimage.com>, is available in the
contrib/minizip directory of zlib.


Notes for some targets:

- For Windows DLL versions, please see win32/DLL_FAQ.txt

- For 64-bit Irix, deflate.c must be compiled without any optimization. With
  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
  compiler flag). The compiler bug has been reported to SGI.

- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
  when compiled with cc.

- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
  necessary to get gzprintf working correctly. This is done by configure.

- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
  other compilers. Use "make test" to check your compiler.

- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.

- For PalmOs, see http://palmzlib.sourceforge.net/

- When building a shared, i.e. dynamic library on Mac OS X, the library must be
  installed before testing (do "make install" before "make test"), since the
  library location is specified in the library.


Acknowledgments:

  The deflate format used by zlib was defined by Phil Katz. The deflate
  and zlib specifications were written by L. Peter Deutsch. Thanks to all the
  people who reported problems and suggested various improvements in zlib;
  they are too numerous to cite here.

Copyright notice:

 (C) 1995-2004 Jean-loup Gailly and Mark Adler

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

  Jean-loup Gailly        Mark Adler
  jloup@@gzip.org          madler@@alumni.caltech.edu

If you use the zlib library in a product, we would appreciate *not*
receiving lengthy legal documents to sign. The sources are provided
for free but without warranty of any kind.  The library has been
entirely written by Jean-loup Gailly and Mark Adler; it does not
include third-party code.

If you redistribute modified sources, we would appreciate that you include
in the file ChangeLog history information documenting your changes. Please
read the FAQ for more information on the distribution of modified source
versions.
@


1.5
log
@SVN rev 206924 on 2010-04-20 21:14:30Z by delphij

MFV: zlib 1.2.5.
@
text
@d3 1
a3 1
zlib 1.2.5 is a general purpose data compression library.  All the code is
d6 2
a7 2
http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
and rfc1952.txt (gzip format).
d11 4
a14 4
of the library is given in the file example.c which also tests that the library
is working correctly.  Another example is given in the file minigzip.c.  The
compression library itself is composed of all source files except example.c and
minigzip.c.
d18 2
a19 2
well, "make install" should work for most flavors of Unix.  For Windows, use one
of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
d34 1
a34 1
The changes made in version 1.2.5 are documented in the file ChangeLog.
d47 1
a47 1
http://www.python.org/doc/lib/module-zlib.html .
d87 1
a87 1
 (C) 1995-2010 Jean-loup Gailly and Mark Adler
@


1.5.2.1
log
@SVN rev 237691 on 2012-06-28 07:08:48Z by delphij

MFC r237410: zlib 1.2.7.
@
text
@d3 1
a3 1
zlib 1.2.7 is a general purpose data compression library.  All the code is
d6 2
a7 2
http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
rfc1952 (gzip format).
d11 4
a14 4
of the library is given in the file test/example.c which also tests that
the library is working correctly.  Another example is given in the file
test/minigzip.c.  The compression library itself is composed of all source
files in the root directory.
d18 2
a19 2
well, "make install" should work for most flavors of Unix.  For Windows, use
one of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
d34 1
a34 1
The changes made in version 1.2.7 are documented in the file ChangeLog.
d47 1
a47 1
http://docs.python.org/library/zlib.html .
d87 1
a87 1
 (C) 1995-2012 Jean-loup Gailly and Mark Adler
@


1.5.2.2
log
@## SVN ## Exported commit - http://svnweb.freebsd.org/changeset/base/254069
## SVN ## CVS IS DEPRECATED: http://wiki.freebsd.org/CvsIsDeprecated
@
text
@d3 1
a3 1
zlib 1.2.8 is a general purpose data compression library.  All the code is
d34 1
a34 1
The changes made in version 1.2.8 are documented in the file ChangeLog.
d87 1
a87 1
 (C) 1995-2013 Jean-loup Gailly and Mark Adler
@


1.4
log
@SVN rev 206708 on 2010-04-16 20:04:45Z by delphij

MFV: libz 1.2.4.3.
@
text
@d3 1
a3 1
zlib 1.2.4.3 is a general purpose data compression library.  All the code is
d34 1
a34 1
The changes made in version 1.2.4.3 are documented in the file ChangeLog.
@


1.3
log
@SVN rev 206002 on 2010-03-31 20:55:13Z by delphij

Update to 1.2.4.1 (beta).
@
text
@d3 1
a3 1
zlib 1.2.4.1 is a general purpose data compression library.  All the code is
d19 2
a20 1
of the special makefiles in win32/ or projects/ .  For VMS, use make_vms.com.
d34 1
a34 1
The changes made in version 1.2.4.1 are documented in the file ChangeLog.
@


1.2
log
@SVN rev 205471 on 2010-03-22 21:11:55Z by delphij

Update to zlib 1.2.4 and add versioned symbols to the
library.

Sponsored by:	iXsystems, Inc.
@
text
@d3 1
a3 1
zlib 1.2.4 is a general purpose data compression library.  All the code is
d33 1
a33 1
The changes made in version 1.2.4 are documented in the file ChangeLog.
@


1.1
log
@Initial revision
@
text
@d1 52
a52 35
zlib 1.0.4 is a general purpose data compression library.  All the code
is reentrant (thread safe).  The data format used by the zlib library
is described by RFCs (Request for Comments) 1950 to 1952 in the files 
ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
format) and rfc1952.txt (gzip format). These documents are also available in
other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html

All functions of the compression library are documented in the file
zlib.h. A usage example of the library is given in the file example.c
which also tests that the library is working correctly. Another
example is given in the file minigzip.c. The compression library itself
is composed of all source files except example.c and minigzip.c.

To compile all files and run the test program, follow the instructions
given at the top of Makefile. In short "make test; make install"
should work for most machines.  For MSDOS, use one of the special
makefiles such as Makefile.msc; for VMS, use Make_vms.com or descrip.mms.

Questions about zlib should be sent to <zlib@@quest.jpl.nasa.gov> or,
if this fails, to the addresses given below in the Copyright section.
The zlib home page is http://quest.jpl.nasa.gov/zlib/

The changes made in version 1.0.4 are documented in the file ChangeLog.
The main changes since 1.0.3 are:

- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
  bit, so the decompressor could decompress all the correct data but went
  on to attempt decompressing extra garbage data. This affected minigzip too.
- zlibVersion and gzerror return const char* (needed for DLL)
- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)


A Perl interface to zlib written by Paul Marquess <pmarquess@@bfsec.bt.co.uk>
is in the CPAN (Comprehensive Perl Archive Network) sites, such as:
ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib*
d57 8
a64 2
- For Turbo C the small model is supported only with reduced performance to
  avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
d66 2
a67 15
- For 64-bit Iris, deflate.c must be compiled without any optimization.
  With -O, one libpng test fails. The test works in 32 bit mode (with
  the -32 compiler flag). The compiler bug has been reported to SGI.

- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1   
  it works when compiled with cc.

- zlib doesn't work on HP-UX 9.05 with one cc compiler (the one not
  accepting the -O option). It works with the other cc compiler.

- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
  and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
  For help on building a zlib DLL, contact Alessandro Iacopetti
  <iaco@@email.alessandria.alpcom.it>  http://lisa.unial.it/iaco ,
  or contact Brad Clarke <bclarke@@cyberus.ca>.
d69 6
a74 1
- gzdopen is not supported on RISCOS
d79 4
a82 4
  The deflate format used by zlib was defined by Phil Katz. The deflate
  and zlib specifications were written by Peter Deutsch. Thanks to all the
  people who reported problems and suggested various improvements in zlib;
  they are too numerous to cite here.
d86 1
a86 1
 (C) 1995-1996 Jean-loup Gailly and Mark Adler
d105 1
a105 7
  gzip@@prep.ai.mit.edu    madler@@alumni.caltech.edu

If you use the zlib library in a product, we would appreciate *not*
receiving lengthy legal documents to sign. The sources are provided
for free but without warranty of any kind.  The library has been
entirely written by Jean-loup Gailly and Mark Adler; it does not
include third-party code.
d107 8
a114 2
If you redistribute modified sources, we would appreciate that you include
in the file ChangeLog history information documenting your changes.
@


1.1.1.1
log
@Initial import of zlib-1.0.4
@
text
@@


1.1.1.1.2.1
log
@MFC: update to zlib-1.1.1
@
text
@d1 2
a2 2
zlib 1.1.1 is a general purpose data compression library.  All the code
is thread safe.  The data format used by the zlib library
d8 5
a12 6
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact jloup@@gzip.org). A usage
example of the library is given in the file example.c which also tests that
the library is working correctly. Another example is given in the file
minigzip.c. The compression library itself is composed of all source files
except example.c and minigzip.c.
d21 11
a31 21
The zlib home page is http://www.cdrom.com/pub/infozip/zlib/
The official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/
Mark Nelson wrote an article about zlib for the Jan. 1997 issue of 
Dr. Dobb's Journal; a copy of the article is available in
http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm

The changes made in version 1.1.1 are documented in the file ChangeLog.
The main changes since 1.1.0 are:

- fix macros _tr_tally_* in deflate.h for debug mode  (Glenn Randers-Pehrson)
- remove block truncation heuristic which had very marginal effect for zlib
  (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
  compression ratio on some files. This also allows inlining _tr_tally for
  matches in deflate_slow.


Unsupported third party contributions are provided in directory "contrib".

A Java implementation of zlib is available in the Java Development Kit 1.1
http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
See the zlib home page http://www.cdrom.com/pub/infozip/zlib/ for details.
a36 8
A Python interface to zlib written by A.M. Kuchling <amk@@magnet.com>
is available from the Python Software Association sites, such as:
ftp://ftp.python.org/pub/python/contrib/Encoding/zlib*.tar.gz

An experimental package to read files in .zip format, written on top of
zlib by Gilles Vollant <info@@winimage.com>, is available at
http://www.winimage.com/zLibDll/unzip.html

d40 2
a41 10
- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
  and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
  The zlib DLL support was initially done by Alessandro Iacopetti and is
  now maintained by Gilles Vollant <info@@winimage.com>. Check the zlib DLL
  home page at http://www.winimage.com/zLibDll

  From Visual Basic, you can call the DLL functions which do not take
  a structure as argument: compress, uncompress and all gz* functions.
  See contrib/visual-basic.txt for more information.
  I don't know how to handle structures in Visual Basic, sorry.
d43 1
a43 1
- For 64-bit Irix, deflate.c must be compiled without any optimization.
d45 1
a45 1
  the -n32 compiler flag). The compiler bug has been reported to SGI.
d50 2
a51 2
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
  with other compilers. Use "make test" to check your compiler.
d53 5
a57 3
- For shared memory multiprocessors, the decompression code assumes that
  writes to pointers are atomic. Also the functions zalloc and zfree passed
  to deflateInit must be multi-threaded in this case.
d59 1
a59 4
- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.

- For Turbo C the small model is supported only with reduced performance to
  avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
d71 1
a71 1
 (C) 1995-1998 Jean-loup Gailly and Mark Adler
d90 1
a90 1
  jloup@@gzip.org          madler@@alumni.caltech.edu
@


1.1.1.1.2.2
log
@MFC: backport -current's zlib 1.1.3 (current release)
@
text
@d1 1
a1 3
$FreeBSD$

zlib 1.1.3 is a general purpose data compression library.  All the code
d17 2
a18 3
should work for most machines. For Unix: "configure; make test; make install"
For MSDOS, use one of the special makefiles such as Makefile.msc.
For VMS, use Make_vms.com or descrip.mms.
d20 2
a21 2
Questions about zlib should be sent to <zlib@@quest.jpl.nasa.gov>, or to
Gilles Vollant <info@@winimage.com> for the Windows DLL version.
d24 2
a25 6
Before reporting a problem, please check those sites to verify that
you have the latest version of zlib; otherwise get the latest version and
check whether the problem still exists or not.

Mark Nelson <markn@@tiny.com> wrote an article about zlib for the Jan. 1997
issue of  Dr. Dobb's Journal; a copy of the article is available in
d28 2
a29 2
The changes made in version 1.1.3 are documented in the file ChangeLog.
The main changes since 1.1.2 are:
d31 5
a35 14
- fix "an inflate input buffer bug that shows up on rare but persistent
  occasions" (Mark)
- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
- fix gzseek(..., SEEK_SET) in write mode
- fix crc check after a gzeek (Frank Faubert)
- fix miniunzip when the last entry in a zip file is itself a zip file
  (J Lillge)
- add contrib/asm586 and contrib/asm686 (Brian Raiter)
  See http://www.muppetlabs.com/~breadbox/software/assembly.html
- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
- added a FAQ file
a36 1
plus many changes for portability.
d49 2
a50 5
is available in Python 1.5 and later versions, see
http://www.python.org/doc/lib/module-zlib.html

A zlib binding for TCL written by Andreas Kupries <a.kupries@@westend.com>
is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
d52 3
a54 4
An experimental package to read and write files in .zip format,
written on top of zlib by Gilles Vollant <info@@winimage.com>, is
available at http://www.winimage.com/zLibDll/unzip.html
and also in the contrib/minizip directory of zlib.
d67 2
a68 2
  See contrib/visual-basic.txt for more information, or get
  http://www.tcfb.com/dowseware/cmp-z-it.zip
a76 3
- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1
  is necessary to get gzprintf working correctly. This is done by configure.

d80 4
a88 3
- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
  Per Harald Myrvang <perm@@stud.cs.uit.no>

d93 1
a93 1
  and zlib specifications were written by L. Peter Deutsch. Thanks to all the
@


1.1.1.2
log
@Initial import of zlib-1.1.1

PR:		5869
Reviewed by:	jdp
@
text
@d1 2
a2 2
zlib 1.1.1 is a general purpose data compression library.  All the code
is thread safe.  The data format used by the zlib library
d8 5
a12 6
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact jloup@@gzip.org). A usage
example of the library is given in the file example.c which also tests that
the library is working correctly. Another example is given in the file
minigzip.c. The compression library itself is composed of all source files
except example.c and minigzip.c.
d21 11
a31 21
The zlib home page is http://www.cdrom.com/pub/infozip/zlib/
The official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/
Mark Nelson wrote an article about zlib for the Jan. 1997 issue of 
Dr. Dobb's Journal; a copy of the article is available in
http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm

The changes made in version 1.1.1 are documented in the file ChangeLog.
The main changes since 1.1.0 are:

- fix macros _tr_tally_* in deflate.h for debug mode  (Glenn Randers-Pehrson)
- remove block truncation heuristic which had very marginal effect for zlib
  (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
  compression ratio on some files. This also allows inlining _tr_tally for
  matches in deflate_slow.


Unsupported third party contributions are provided in directory "contrib".

A Java implementation of zlib is available in the Java Development Kit 1.1
http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
See the zlib home page http://www.cdrom.com/pub/infozip/zlib/ for details.
a36 8
A Python interface to zlib written by A.M. Kuchling <amk@@magnet.com>
is available from the Python Software Association sites, such as:
ftp://ftp.python.org/pub/python/contrib/Encoding/zlib*.tar.gz

An experimental package to read files in .zip format, written on top of
zlib by Gilles Vollant <info@@winimage.com>, is available at
http://www.winimage.com/zLibDll/unzip.html

d40 2
a41 10
- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
  and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
  The zlib DLL support was initially done by Alessandro Iacopetti and is
  now maintained by Gilles Vollant <info@@winimage.com>. Check the zlib DLL
  home page at http://www.winimage.com/zLibDll

  From Visual Basic, you can call the DLL functions which do not take
  a structure as argument: compress, uncompress and all gz* functions.
  See contrib/visual-basic.txt for more information.
  I don't know how to handle structures in Visual Basic, sorry.
d43 1
a43 1
- For 64-bit Irix, deflate.c must be compiled without any optimization.
d45 1
a45 1
  the -n32 compiler flag). The compiler bug has been reported to SGI.
d50 2
a51 2
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
  with other compilers. Use "make test" to check your compiler.
d53 5
a57 3
- For shared memory multiprocessors, the decompression code assumes that
  writes to pointers are atomic. Also the functions zalloc and zfree passed
  to deflateInit must be multi-threaded in this case.
d59 1
a59 4
- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.

- For Turbo C the small model is supported only with reduced performance to
  avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
d71 1
a71 1
 (C) 1995-1998 Jean-loup Gailly and Mark Adler
d90 1
a90 1
  jloup@@gzip.org          madler@@alumni.caltech.edu
@


1.1.1.3
log
@Import zlib 1.1.3 onto the vendor branch.

Obtained from: ftp.cdrom.com:/pub/infozip/zlib
@
text
@d1 1
a1 1
zlib 1.1.3 is a general purpose data compression library.  All the code
d17 2
a18 3
should work for most machines. For Unix: "configure; make test; make install"
For MSDOS, use one of the special makefiles such as Makefile.msc.
For VMS, use Make_vms.com or descrip.mms.
d20 2
a21 2
Questions about zlib should be sent to <zlib@@quest.jpl.nasa.gov>, or to
Gilles Vollant <info@@winimage.com> for the Windows DLL version.
d24 2
a25 6
Before reporting a problem, please check those sites to verify that
you have the latest version of zlib; otherwise get the latest version and
check whether the problem still exists or not.

Mark Nelson <markn@@tiny.com> wrote an article about zlib for the Jan. 1997
issue of  Dr. Dobb's Journal; a copy of the article is available in
d28 2
a29 2
The changes made in version 1.1.3 are documented in the file ChangeLog.
The main changes since 1.1.2 are:
d31 5
a35 14
- fix "an inflate input buffer bug that shows up on rare but persistent
  occasions" (Mark)
- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
- fix gzseek(..., SEEK_SET) in write mode
- fix crc check after a gzeek (Frank Faubert)
- fix miniunzip when the last entry in a zip file is itself a zip file
  (J Lillge)
- add contrib/asm586 and contrib/asm686 (Brian Raiter)
  See http://www.muppetlabs.com/~breadbox/software/assembly.html
- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
- added a FAQ file
a36 1
plus many changes for portability.
d49 2
a50 5
is available in Python 1.5 and later versions, see
http://www.python.org/doc/lib/module-zlib.html

A zlib binding for TCL written by Andreas Kupries <a.kupries@@westend.com>
is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
d52 3
a54 4
An experimental package to read and write files in .zip format,
written on top of zlib by Gilles Vollant <info@@winimage.com>, is
available at http://www.winimage.com/zLibDll/unzip.html
and also in the contrib/minizip directory of zlib.
d67 2
a68 2
  See contrib/visual-basic.txt for more information, or get
  http://www.tcfb.com/dowseware/cmp-z-it.zip
a76 3
- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1
  is necessary to get gzprintf working correctly. This is done by configure.

d80 4
a88 3
- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
  Per Harald Myrvang <perm@@stud.cs.uit.no>

d93 1
a93 1
  and zlib specifications were written by L. Peter Deutsch. Thanks to all the
@


1.1.1.3.6.1
log
@MFC: zlib 1.1.4. It was sitting in the -current for too long (10 months).
@
text
@d1 1
a1 1
zlib 1.1.4 is a general purpose data compression library.  All the code
d4 1
a4 1
http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
d17 1
a17 1
should work for most machines. For Unix: "./configure; make test; make install"
d21 1
a21 1
Questions about zlib should be sent to <zlib@@gzip.org>, or to
d23 3
a25 2
The zlib home page is http://www.zlib.org or http://www.gzip.org/zlib/
Before reporting a problem, please check this site to verify that
d29 1
a29 4
PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html
before asking for help.

Mark Nelson <markn@@ieee.org> wrote an article about zlib for the Jan. 1997
d31 1
a31 1
http://dogma.net/markn/articles/zlibtool/zlibtool.htm
d33 2
a34 2
The changes made in version 1.1.4 are documented in the file ChangeLog.
The only changes made since 1.1.3 are bug corrections:
d36 14
a49 12
- ZFREE was repeated on same allocation on some error conditions.
  This creates a security problem described in
  http://www.zlib.org/advisory-2002-03-11.txt
- Returned incorrect error (Z_MEM_ERROR) on some invalid data
- Avoid accesses before window for invalid distances with inflate window
  less than 32K.
- force windowBits > 8 to avoid a bug in the encoder for a window size
  of 256 bytes. (A complete fix will be available in 1.1.5).

The beta version 1.1.5beta includes many more changes. A new official
version 1.1.5 will be released as soon as extensive testing has been
completed on it.
d51 1
d55 1
a55 1
A Java implementation of zlib is available in the Java Development Kit
d57 1
a57 1
See the zlib home page http://www.zlib.org for details.
d60 2
a61 2
is in the CPAN (Comprehensive Perl Archive Network) sites
http://www.cpan.org/modules/by-module/Compress/
d120 1
a120 1
 (C) 1995-2002 Jean-loup Gailly and Mark Adler
@


1.1.1.4
log
@Import zlib 1.1.4 onto the vendor branch.
@
text
@d1 1
a1 1
zlib 1.1.4 is a general purpose data compression library.  All the code
d4 1
a4 1
http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
d17 1
a17 1
should work for most machines. For Unix: "./configure; make test; make install"
d21 1
a21 1
Questions about zlib should be sent to <zlib@@gzip.org>, or to
d23 3
a25 2
The zlib home page is http://www.zlib.org or http://www.gzip.org/zlib/
Before reporting a problem, please check this site to verify that
d29 1
a29 4
PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html
before asking for help.

Mark Nelson <markn@@ieee.org> wrote an article about zlib for the Jan. 1997
d31 1
a31 1
http://dogma.net/markn/articles/zlibtool/zlibtool.htm
d33 2
a34 2
The changes made in version 1.1.4 are documented in the file ChangeLog.
The only changes made since 1.1.3 are bug corrections:
d36 14
a49 12
- ZFREE was repeated on same allocation on some error conditions.
  This creates a security problem described in
  http://www.zlib.org/advisory-2002-03-11.txt
- Returned incorrect error (Z_MEM_ERROR) on some invalid data
- Avoid accesses before window for invalid distances with inflate window
  less than 32K.
- force windowBits > 8 to avoid a bug in the encoder for a window size
  of 256 bytes. (A complete fix will be available in 1.1.5).

The beta version 1.1.5beta includes many more changes. A new official
version 1.1.5 will be released as soon as extensive testing has been
completed on it.
d51 1
d55 1
a55 1
A Java implementation of zlib is available in the Java Development Kit
d57 1
a57 1
See the zlib home page http://www.zlib.org for details.
d60 2
a61 2
is in the CPAN (Comprehensive Perl Archive Network) sites
http://www.cpan.org/modules/by-module/Compress/
d120 1
a120 1
 (C) 1995-2002 Jean-loup Gailly and Mark Adler
@


1.1.1.5
log
@Import zlib 1.2.1 (trimmed)
@
text
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ZLIB DATA COMPRESSION LIBRARY

zlib 1.2.1 is a general purpose data compression library.  All the code is
thread safe.  The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files
http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
and rfc1952.txt (gzip format). These documents are also available in other
formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
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(volunteer to write man pages welcome, contact zlib@@gzip.org). A usage example
of the library is given in the file example.c which also tests that the library
is working correctly. Another example is given in the file minigzip.c. The
compression library itself is composed of all source files except example.c and
minigzip.c.

To compile all files and run the test program, follow the instructions given at
the top of Makefile. In short "make test; make install" should work for most
machines. For Unix: "./configure; make test; make install" For MSDOS, use one
of the special makefiles such as Makefile.msc. For VMS, use Make_vms.com or
descrip.mms.

Questions about zlib should be sent to <zlib@@gzip.org>, or to Gilles Vollant
<info@@winimage.com> for the Windows DLL version. The zlib home page is
http://www.zlib.org or http://www.gzip.org/zlib/ Before reporting a problem,
please check this site to verify that you have the latest version of zlib;
otherwise get the latest version and check whether the problem still exists or
not.
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PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html before asking
for help.
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The changes made in version 1.2.1 are documented in the file ChangeLog.
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http://java.sun.com/j2se/1.4.2/docs/api/java/util/zip/package-summary.html
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A Perl interface to zlib written by Paul Marquess <pmqs@@cpan.org> is in the
CPAN (Comprehensive Perl Archive Network) sites
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A Python interface to zlib written by A.M. Kuchling <amk@@magnet.com> is
available in Python 1.5 and later versions, see
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A zlib binding for TCL written by Andreas Kupries <a.kupries@@westend.com> is
availlable at http://www.oche.de/~akupries/soft/trf/trf_zip.html
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An experimental package to read and write files in .zip format, written on top
of zlib by Gilles Vollant <info@@winimage.com>, is available in the
contrib/minizip directory of zlib.
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- For Windows DLL versions, please see win32/DLL_FAQ.txt

- For 64-bit Irix, deflate.c must be compiled without any optimization. With
  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
  compiler flag). The compiler bug has been reported to SGI.
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- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
  when compiled with cc.
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- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
  necessary to get gzprintf working correctly. This is done by configure.
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- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
  other compilers. Use "make test" to check your compiler.
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- For PalmOs, see http://palmzlib.sourceforge.net/
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- When building a shared, i.e. dynamic library on Mac OS X, the library must be
  installed before testing (do "make install" before "make test"), since the
  library location is specified in the library.
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 (C) 1995-2003 Jean-loup Gailly and Mark Adler
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in the file ChangeLog history information documenting your changes. Please
read the FAQ for more information on the distribution of modified source
versions.
@


1.1.1.5.2.1
log
@MFC: ZLib 1.2.2 (Part 2: Files unchanged from vendor distribution)
@
text
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zlib 1.2.2 is a general purpose data compression library.  All the code is
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The changes made in version 1.2.2 are documented in the file ChangeLog.
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A Python interface to zlib written by A.M. Kuchling <amk@@amk.ca> is
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 (C) 1995-2004 Jean-loup Gailly and Mark Adler
@


1.1.1.6
log
@ZLib 1.2.2
@
text
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zlib 1.2.2 is a general purpose data compression library.  All the code is
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The changes made in version 1.2.2 are documented in the file ChangeLog.
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A Python interface to zlib written by A.M. Kuchling <amk@@amk.ca> is
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 (C) 1995-2004 Jean-loup Gailly and Mark Adler
@


1.1.1.6.2.1
log
@MFC: upgrade to 1.2.3.

Approved by:	re (hrs)
@
text
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zlib 1.2.3 is a general purpose data compression library.  All the code is
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machines. For Unix: "./configure; make test; make install". For MSDOS, use one
of the special makefiles such as Makefile.msc. For VMS, use make_vms.com.
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The changes made in version 1.2.3 are documented in the file ChangeLog.
@


1.1.1.7
log
@Vendor import of ZLib 1.2.3.
@
text
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zlib 1.2.3 is a general purpose data compression library.  All the code is
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machines. For Unix: "./configure; make test; make install". For MSDOS, use one
of the special makefiles such as Makefile.msc. For VMS, use make_vms.com.
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The changes made in version 1.2.3 are documented in the file ChangeLog.
@


