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contrib/H17-Feb-2023-633287

doc/H06-Mar-2024-2,5701,738

test/H06-Mar-2024-1,8001,336

ChangeLogH A D06-Mar-202481.9 KiB1,6191,531

FAQH A D06-Mar-202416.1 KiB368259

LICENSEH A D17-Feb-20231,002 2317

READMEH A D06-Mar-20245.2 KiB11884

adler32.cH A D20-Aug-20234.8 KiB165122

compress.cH A D20-Aug-20232.6 KiB7642

crc32.cH A D20-Aug-202330.9 KiB1,050703

crc32.hH A D08-May-2022577.9 KiB9,4479,380

deflate.cH A D06-Mar-202479.9 KiB2,1421,373

deflate.hH A D06-Mar-202413.7 KiB378188

gzclose.cH A D20-Aug-2023668 2412

gzguts.hH A D06-Mar-20246.5 KiB215153

gzlib.cH A D06-Mar-202415.9 KiB585432

gzread.cH A D20-Aug-202319.5 KiB604396

gzwrite.cH A D20-Aug-202318.8 KiB633443

infback.cH A D20-Aug-202322.2 KiB629480

inffast.cH A D20-Aug-202312.6 KiB321253

inffast.hH A D20-Aug-2023422 121

inffixed.hH A D08-May-20226.2 KiB9584

inflate.cH A D06-Mar-202454.3 KiB1,5271,149

inflate.hH A D08-May-20226.5 KiB12774

inftrees.cH A D06-Mar-202412.7 KiB300169

inftrees.hH A D06-Mar-20242.9 KiB6316

trees.cH A D06-Mar-202440 KiB1,118670

trees.hH A D08-May-20228.3 KiB129120

uncompr.cH A D20-Aug-20232.8 KiB8653

zconf.hH A D06-Mar-202416.5 KiB566454

zconf.h.inH A D06-Mar-202416.1 KiB544498

zlib.3H A D06-Mar-20244.4 KiB150148

zlib.hH A D06-Mar-202494.7 KiB1,944316

zlib.mapH A D08-May-20221.4 KiB10187

zlib.pc.inH A D08-May-2022254 1411

zutil.cH A D20-Aug-20237 KiB300214

zutil.hH A D06-Mar-20246.5 KiB255181

README

1ZLIB DATA COMPRESSION LIBRARY
2
3zlib 1.3.1 is a general purpose data compression library.  All the code is
4thread safe.  The data format used by the zlib library is described by RFCs
5(Request for Comments) 1950 to 1952 in the files
6http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
7rfc1952 (gzip format).
8
9All functions of the compression library are documented in the file zlib.h
10(volunteer to write man pages welcome, contact zlib@gzip.org).  A usage example
11of the library is given in the file test/example.c which also tests that
12the library is working correctly.  Another example is given in the file
13test/minigzip.c.  The compression library itself is composed of all source
14files in the root directory.
15
16To compile all files and run the test program, follow the instructions given at
17the top of Makefile.in.  In short "./configure; make test", and if that goes
18well, "make install" should work for most flavors of Unix.  For Windows, use
19one of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
20make_vms.com.
21
22Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
23<info@winimage.com> for the Windows DLL version.  The zlib home page is
24http://zlib.net/ .  Before reporting a problem, please check this site to
25verify that you have the latest version of zlib; otherwise get the latest
26version and check whether the problem still exists or not.
27
28PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
29
30Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan.  1997
31issue of Dr.  Dobb's Journal; a copy of the article is available at
32https://marknelson.us/posts/1997/01/01/zlib-engine.html .
33
34The changes made in version 1.3.1 are documented in the file ChangeLog.
35
36Unsupported third party contributions are provided in directory contrib/ .
37
38zlib is available in Java using the java.util.zip package. Follow the API
39Documentation link at: https://docs.oracle.com/search/?q=java.util.zip .
40
41A Perl interface to zlib and bzip2 written by Paul Marquess <pmqs@cpan.org>
42can be found at https://github.com/pmqs/IO-Compress .
43
44A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
45available in Python 1.5 and later versions, see
46http://docs.python.org/library/zlib.html .
47
48zlib is built into tcl: http://wiki.tcl.tk/4610 .
49
50An experimental package to read and write files in .zip format, written on top
51of zlib by Gilles Vollant <info@winimage.com>, is available in the
52contrib/minizip directory of zlib.
53
54
55Notes for some targets:
56
57- For Windows DLL versions, please see win32/DLL_FAQ.txt
58
59- For 64-bit Irix, deflate.c must be compiled without any optimization. With
60  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
61  compiler flag). The compiler bug has been reported to SGI.
62
63- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
64  when compiled with cc.
65
66- On Digital Unix 4.0D (formerly OSF/1) on AlphaServer, the cc option -std1 is
67  necessary to get gzprintf working correctly. This is done by configure.
68
69- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
70  other compilers. Use "make test" to check your compiler.
71
72- gzdopen is not supported on RISCOS or BEOS.
73
74- For PalmOs, see http://palmzlib.sourceforge.net/
75
76
77Acknowledgments:
78
79  The deflate format used by zlib was defined by Phil Katz.  The deflate and
80  zlib specifications were written by L.  Peter Deutsch.  Thanks to all the
81  people who reported problems and suggested various improvements in zlib; they
82  are too numerous to cite here.
83
84Copyright notice:
85
86 (C) 1995-2024 Jean-loup Gailly and Mark Adler
87
88  This software is provided 'as-is', without any express or implied
89  warranty.  In no event will the authors be held liable for any damages
90  arising from the use of this software.
91
92  Permission is granted to anyone to use this software for any purpose,
93  including commercial applications, and to alter it and redistribute it
94  freely, subject to the following restrictions:
95
96  1. The origin of this software must not be misrepresented; you must not
97     claim that you wrote the original software. If you use this software
98     in a product, an acknowledgment in the product documentation would be
99     appreciated but is not required.
100  2. Altered source versions must be plainly marked as such, and must not be
101     misrepresented as being the original software.
102  3. This notice may not be removed or altered from any source distribution.
103
104  Jean-loup Gailly        Mark Adler
105  jloup@gzip.org          madler@alumni.caltech.edu
106
107If you use the zlib library in a product, we would appreciate *not* receiving
108lengthy legal documents to sign.  The sources are provided for free but without
109warranty of any kind.  The library has been entirely written by Jean-loup
110Gailly and Mark Adler; it does not include third-party code.  We make all
111contributions to and distributions of this project solely in our personal
112capacity, and are not conveying any rights to any intellectual property of
113any third parties.
114
115If you redistribute modified sources, we would appreciate that you include in
116the file ChangeLog history information documenting your changes.  Please read
117the FAQ for more information on the distribution of modified source versions.
118