Name: zlib

Short Name: zlib

URL: https://github.com/madler/zlib

Version: 1.3.1

Revision: 51b7f2abdade71cd9bb0e7a373ef2610ec6f9daf

Update Mechanism: Manual (https://crbug.com/422348588)

CPEPrefix: cpe:/a:zlib:zlib:1.3.1

Security Critical: yes

Shipped: yes

License: Zlib

License File: LICENSE

License Android Compatible: yes

Description:

"A massively spiffy yet delicately unobtrusive compression library."

zlib is a free, general-purpose, legally unencumbered lossless data-compression

library. zlib implements the "deflate" compression algorithm described by RFC

1951, which combines the LZ77 (Lempel-Ziv) algorithm with Huffman coding. zlib

also implements the zlib (RFC 1950) and gzip (RFC 1952) wrapper formats.

Local Modifications:

- Only source code from the http://zlib.net distribution used to build the zlib

and minizip libraries are present. Many other files have been omitted. Only *.c

and *.h files from the upstream root directory, contrib/minizip and

examples/zpipe.c were imported.

- The files named '*simd*' are original x86/Arm/RISC-V specific optimizations.

- The contents of the google directory are original Chromium-specific

additions.

- The contents of the 'contrib' of directory are either Chromium-specific

additions or heavily patched zlib files (e.g. inffast_chunk*).

- Added chromeconf.h

- Plus the changes in 'patches' folder.

- Code in contrib/ other than contrib/minizip was added to match zlib's

contributor layout.

- In sync with 1.3.1 official release

- ZIP reader modified to allow for progress callbacks during extraction.

- ZIP reader modified to add detection of AES encrypted content.