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项目描述

zlib is designed to be a free, general-purpose, legally unencumbered, lossless data-compression library for use on virtually any computer hardware and operating system. The zlib data format is itself portable across platforms. Unlike the LZW compression method used in Unix compress(1), the compression method currently used in zlib essentially never expands the data. (LZW can double or triple the file size in extreme cases.) zlib's memory footprint is also independent of the input data and can be reduced, if necessary, at some cost in compression.

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2012-02-01 07:23
1.2.6

作了很多小错误修正和增强功能。
标签: Minor feature enhancements, Minor bugfixes
Many minor bugfixes and enhancements were made.

2010-07-08 22:32
1.2.5

错误是固定在adler32_combine(),compressBound()和deflateBound()。被替换的GZ功能与更快的版本和gzbuffer(),gzoffset(),gzclose_r()和gzclose_w()函数被加入。更快Z_HUFFMAN_ONLY和Z_RLE介绍了压缩的图像和其他专门的压缩。阿Z_BLOCK刷新选项被添加到缩小()与Z_TREES的膨胀()刷新选项一起。 inflateReset2()和inflateMark()功能的加入,以帮助后者在随机访问的应用程序。许多便携性进行了改进。例子和贡献进行了更新。
标签: Minor bugfixes, Major feature enhancements
Bugs were fixed in adler32_combine(), compressBound(), and deflateBound(). The gz functions were replaced with faster versions and gzbuffer(), gzoffset(), gzclose_r(), and gzclose_w() functions were added. Faster Z_HUFFMAN_ONLY and Z_RLE compression was introduced for images and other specialized compression. A Z_BLOCK flush option was added to deflate() along with a Z_TREES flush option for inflate(). inflateReset2() and inflateMark() functions were added, the latter to aid in random access applications. Many portability improvements were made. Examples and contribs were updated.

2005-10-14 10:28
1.2.3

一个潜在的安全漏洞,当解码无效的压缩数据被淘汰。一个潜在的安全漏洞,当解码特制压缩数据被淘汰。甲时,没有距离码压缩动态块是固定的错误。一个gzread CRC校验错误()后gzungetc()是固定的。一个错误返回时不再使用gzread()的一个空文件。
标签: Major security fixes
A potential security vulnerability when decoding
invalid compressed data was eliminated. A
potential security vulnerability when decoding
specially crafted compressed data was eliminated.
A bug when decompressing dynamic blocks with no
distance codes was fixed. A CRC check bug in
gzread() after gzungetc() was fixed. An error is
no longer returned when using gzread() on an empty
file.

2005-07-12 01:37
1.2.2

此版本1.2.1中消除了潜在的安全漏洞,所以1.2.1所有用户应立即升级。这消除了潜在的安全漏洞时,解码无效的压缩数据,修正了错误时,解压缩动态块,没有距离码,并且不返回错误当使用gzread()的一个空文件。
标签: Major security fixes
This release eliminates a potential security vulnerability in 1.2.1, so all users of 1.2.1 should upgrade immediately. It eliminates a potential security vulnerability when decoding invalid compressed data, fixes a bug when decompressing dynamic blocks with no distance codes, and does not return an error when using gzread() on an empty file.

2003-12-02 16:40
1.2.1

此版本增加了许多改进和功能zlib的。
标签: Major feature enhancements
This release adds many improvements and features
to zlib.

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