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1 | zlib 1.1.3 is a general purpose data compression library. All the code\ris thread safe. The data format used by the zlib library\ris described by RFCs (Request for Comments) 1950 to 1952 in the files \rftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate\rformat) and rfc1952.txt (gzip format). These documents are also available in\rother formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html\r\rAll functions of the compression library are documented in the file zlib.h\r(volunteer to write man pages welcome, contact jloup@gzip.org). A usage\rexample of the library is given in the file example.c which also tests that\rthe library is working correctly. Another example is given in the file\rminigzip.c. The compression library itself is composed of all source files\rexcept example.c and minigzip.c.\r\rTo compile all files and run the test program, follow the instructions\rgiven at the top of Makefile. In short "make test; make install"\rshould work for most machines. For Unix: "configure; make test; make install"\rFor MSDOS, use one of the special makefiles such as Makefile.msc.\rFor VMS, use Make_vms.com or descrip.mms.\r\rQuestions about zlib should be sent to <zlib@quest.jpl.nasa.gov>, or to\rGilles Vollant <info@winimage.com> for the Windows DLL version.\rThe zlib home page is http://www.cdrom.com/pub/infozip/zlib/\rThe official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/\rBefore reporting a problem, please check those sites to verify that\ryou have the latest version of zlib; otherwise get the latest version and\rcheck whether the problem still exists or not.\r\rMark Nelson <markn@tiny.com> wrote an article about zlib for the Jan. 1997\rissue of Dr. Dobb's Journal; a copy of the article is available in\rhttp://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm\r\rThe changes made in version 1.1.3 are documented in the file ChangeLog.\rThe main changes since 1.1.2 are:\r\r- fix "an inflate input buffer bug that shows up on rare but persistent\r occasions" (Mark)\r- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)\r- fix gzseek(..., SEEK_SET) in write mode\r- fix crc check after a gzeek (Frank Faubert)\r- fix miniunzip when the last entry in a zip file is itself a zip file\r (J Lillge)\r- add contrib/asm586 and contrib/asm686 (Brian Raiter)\r See http://www.muppetlabs.com/~breadbox/software/assembly.html\r- add support for Delphi 3 in contrib/delphi (Bob Dellaca)\r- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)\r- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)\r- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)\r- added a FAQ file\r\rplus many changes for portability.\r\rUnsupported third party contributions are provided in directory "contrib".\r\rA Java implementation of zlib is available in the Java Development Kit 1.1\rhttp://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html\rSee the zlib home page http://www.cdrom.com/pub/infozip/zlib/ for details.\r\rA Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk>\ris in the CPAN (Comprehensive Perl Archive Network) sites, such as:\rftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib*\r\rA Python interface to zlib written by A.M. Kuchling <amk@magnet.com>\ris available in Python 1.5 and later versions, see\rhttp://www.python.org/doc/lib/module-zlib.html\r\rA zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com>\ris availlable at http://www.westend.com/~kupries/doc/trf/man/man.html\r\rAn experimental package to read and write files in .zip format,\rwritten on top of zlib by Gilles Vollant <info@winimage.com>, is\ravailable at http://www.winimage.com/zLibDll/unzip.html\rand also in the contrib/minizip directory of zlib.\r\r\rNotes for some targets:\r\r- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc\r and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL\r The zlib DLL support was initially done by Alessandro Iacopetti and is\r now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL\r home page at http://www.winimage.com/zLibDll\r\r From Visual Basic, you can call the DLL functions which do not take\r a structure as argument: compress, uncompress and all gz* functions.\r See contrib/visual-basic.txt for more information, or get\r http://www.tcfb.com/dowseware/cmp-z-it.zip\r\r- For 64-bit Irix, deflate.c must be compiled without any optimization.\r With -O, one libpng test fails. The test works in 32 bit mode (with\r the -n32 compiler flag). The compiler bug has been reported to SGI.\r\r- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 \r it works when compiled with cc.\r\r- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1\r is necessary to get gzprintf working correctly. This is done by configure.\r\r- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works\r with other compilers. Use "make test" to check your compiler.\r\r- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.\r\r- For Turbo C the small model is supported only with reduced performance to\r avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3\r\r- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html\r Per Harald Myrvang <perm@stud.cs.uit.no>\r\r\rAcknowledgments:\r\r The deflate format used by zlib was defined by Phil Katz. The deflate\r and zlib specifications were written by L. Peter Deutsch. Thanks to all the\r people who reported problems and suggested various improvements in zlib;\r they are too numerous to cite here.\r\rCopyright notice:\r\r (C) 1995-1998 Jean-loup Gailly and Mark Adler\r\r This software is provided 'as-is', without any express or implied\r warranty. In no event will the authors be held liable for any damages\r arising from the use of this software.\r\r Permission is granted to anyone to use this software for any purpose,\r including commercial applications, and to alter it and redistribute it\r freely, subject to the following restrictions:\r\r 1. The origin of this software must not be misrepresented; you must not\r claim that you wrote the original software. If you use this software\r in a product, an acknowledgment in the product documentation would be\r appreciated but is not required.\r 2. Altered source versions must be plainly marked as such, and must not be\r misrepresented as being the original software.\r 3. This notice may not be removed or altered from any source distribution.\r\r Jean-loup Gailly Mark Adler\r jloup@gzip.org madler@alumni.caltech.edu\r\rIf you use the zlib library in a product, we would appreciate *not*\rreceiving lengthy legal documents to sign. The sources are provided\rfor free but without warranty of any kind. The library has been\rentirely written by Jean-loup Gailly and Mark Adler; it does not\rinclude third-party code.\r\rIf you redistribute modified sources, we would appreciate that you include\rin the file ChangeLog history information documenting your changes.\r |
projects / apple / security.git / blame