|
|
|
|
zlib 0.92 is a beta version of a general purpose compression library.
|
|
|
|
|
|
|
|
|
|
The data format used by the zlib library is described in the
|
|
|
|
|
files zlib-3.1.doc, deflate-1.1.doc and gzip-4.1.doc, available
|
|
|
|
|
in ftp.uu.net:/pub/archiving/zip/doc.
|
|
|
|
|
|
|
|
|
|
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.
|
|
|
|
|
|
|
|
|
|
To compile all files and run the test program, just type: make test
|
|
|
|
|
(For MSDOS, use one of the special makefiles such as Makefile.msc.)
|
|
|
|
|
To install the zlib library (libgz.a) in /usr/local/lib, type: make install
|
|
|
|
|
To install in a different directory, use for example: make install prefix=$HOME
|
|
|
|
|
This will install in $HOME/lib instead of /usr/local/lib.
|
|
|
|
|
|
|
|
|
|
The changes made in version 0.92 are documented in the file ChangeLog.
|
|
|
|
|
The main changes since 0.9 are:
|
|
|
|
|
- don't assume that char is signed (problem on SGI)
|
|
|
|
|
- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
|
|
|
|
|
- Document the memory requirements in zconf.h
|
|
|
|
|
- added "make install"
|
|
|
|
|
- added support for DJGPP and Pyramid
|
|
|
|
|
- fix an inflate bug for stored blocks.
|
|
|
|
|
- various speedups
|
|
|
|
|
|
|
|
|
|
On MSDOS, this version works in both large and small model. However
|
|
|
|
|
small model compression works only for small values of MAX_MEM_LEVEL
|
|
|
|
|
and MAX_WBITS (see zconf.h). Small model decompression should work up
|
|
|
|
|
to MAX_WBITS=15. This version of zlib does not support small or
|
|
|
|
|
medium model with far allocation of big objects.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Copyright (C) 1995 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
|
|
|
|
|
gzip@prep.ai.mit.edu madler@cco.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.
|
