Dell C5765DN MFP Color Laser Printer User Manual

Page 647

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About License

647

zlib.h -- interface of the 'zlib' general purpose compression library version 1.1.3, July 9th, 1998

Copyright (C) 1995-1998 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
[email protected] [email protected]

The data format used by the zlib library is described by RFCs (Request for Comments) 1950

to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate

format) and rfc1952.txt (gzip format).

The 'zlib' compression library 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.

for more info about .ZIP format, see ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-

iz.zip
PkWare has also a specification at ftp://ftp.pkware.com/probdesc.zip

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