[ новости /+++ | форум | теги | ]

NAME
     libz - compression/decompression library

SYNOPSIS
     [see zlib.h for full description]

DESCRIPTION
     The libz (zlib) library is a general purpose  data  compres-
     sion  library.   The  code  is thread safe.  It provides in-
     memory compression and  decompression  functions,  including
     integrity  checks of the uncompressed data.  This version of
     the library supports only one compression method (deflation)
     but  other  algorithms will be added later and will have the
     same stream interface.

     Compression can be done in a single step if the buffers  are
     large  enough  (for example if an input file is mmap'ed), or
     can be done by repeated calls of the  compression  function.
     In  the latter case, the application must provide more input
     and/or consume the  output  (providing  more  output  space)
     before each call.

     The library also supports reading and writing files in  gzip
     (.gz) format with an interface similar to that of stdio.

     The library does not install any signal handler. The decoder
     checks  the  consistency  of  the  compressed  data,  so the
     library should never crash even in case of corrupted input.

     All functions of the compression library are  documented  in
     the  file zlib.h.  The distribution source includes examples
     of use of the library the files example.c and minigzip.c.

     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

     A  Perl  interface  to  zlib,  written  by   Paul   Marquess
     (pmarquess@bfsec.bt.co.uk)  is available at CPAN (Comprehen-
     sive Perl Archive Network) sites, such as:

          ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-
          module/Compress/Compress-Zlib*

     A  Python  interface  to  zlib  written  by  A.M.   Kuchling
     <amk@magnet.com> is available from the Python Software Asso-
     ciation sites, such as:

          ftp://ftp.python.org/pub/python/contrib/Encoding/zlib*.tar.gz

SEE ALSO
     Questions about zlib should be sent to:

          zlib@quest.jpl.nasa.gov  or,  if  this  fails,  to  the
          author addresses given below.  The zlib home page is:

          http://www.cdrom.com/pub/infozip/zlib/

     The data format used by the zlib library is described by RFC
     (Request for Comments) 1950 to 1952 in the files:

          ftp://ds.internic.net/rfc/rfc1950.txt (zlib format)
          rfc1951.txt (deflate format)
          rfc1952.txt (gzip format)

     These documents are also available in other formats from:

          ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-
          index.html

AUTHORS
     Version  1.1.3  Copyright  (C)  1995-1998  Jean-loup  Gailly
     (jloup@gzip.org) and Mark Adler (madler@alumni.caltech.edu).

     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.   See  the  distribution directory with respect to
     requirements governing redistribution.  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; who are too numerous to cite here.

     UNIX manual page by R. P. C. Rodgers, U.S. National  Library
     of Medicine (rodgers@nlm.nih.gov).

NOTES
     Source for zlib is available in the SUNWzlibS package.

Партнёры:

Хостинг: