XZip_Demo好用的编程实现unzip 和 zip

// XUnzip.cpp Version 1.3 // // Authors: Mark Adler et al. (see below) // // Modified by: Lucian Wischik // lu@wischik.com // // Version 1.0 - Turned C files into just a single CPP file // - Made them compile cleanly as C++ files // - Gave them simpler APIs // - Added the ability to zip/unzip directly in memory without // any intermediate files // // Modified by: Hans Dietrich // hdietrich@gmail.com // // Version 1.3: - Corrected size bug introduced by 1.2 // // Version 1.2: - Many bug fixes. See CodeProject article for list. // // Version 1.1: - Added Unicode support to CreateZip() and ZipAdd() // - Changed file names to avoid conflicts with Lucian's files // /////////////////////////////////////////////////////////////////////////////// // // Lucian Wischik's comments: // -------------------------- // THIS FILE is almost entirely based upon code by Info-ZIP. // It has been modified by Lucian Wischik. // The original code may be found at http://www.info-zip.org // The original copyright text follows. // /////////////////////////////////////////////////////////////////////////////// // // Original authors' comments: // --------------------------- // This is version 2002-Feb-16 of the Info-ZIP copyright and license. The // definitive version of this document should be available at // ftp://ftp.info-zip.org/pub/infozip/license.html indefinitely. // // Copyright (c) 1990-2002 Info-ZIP. All rights reserved. // // For the purposes of this copyright and license, "Info-ZIP" is defined as // the following set of individuals: // // Mark Adler, John Bush, Karl Davis, Harald Denker, Jean-Michel Dubois, // Jean-loup Gailly, Hunter Goatley, Ian Gorman, Chris Herborth, Dirk Haase, // Greg Hartwig, Robert Heath, Jonathan Hudson, Paul Kienitz, // David Kirschbaum, Johnny Lee, Onno van der Linden, Igor Mandrichenko, // Steve P. Miller, Sergio Monesi, Keith Owens, George Petrov, Greg Roelofs, // Kai Uwe Rommel, Steve Salisbury, Dave Smith, Christian Spieler, // Antoine Verheijen, Paul von Behren, Rich Wales, Mike White // // This software is provided "as is", without warranty of any kind, express // or implied. In no event shall Info-ZIP or its contributors be held liable // for any direct, indirect, incidental, special or consequential damages // arising out of the use of or inability to use 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. Redistributions of source code must retain the above copyright notice, // definition, disclaimer, and this list of conditions. // // 2. Redistributions in binary form (compiled executables) must reproduce // the above copyright notice, definition, disclaimer, and this list of // conditions in documentation and/or other materials provided with the // distribution. The sole exception to this condition is redistribution // of a standard UnZipSFX binary as part of a self-extracting archive; // that is permitted without inclusion of this license, as long as the // normal UnZipSFX banner has not been removed from the binary or disabled. // // 3. Altered versions--including, but not limited to, ports to new // operating systems, existing ports with new graphical interfaces, and // dynamic, shared, or static library versions--must be plainly marked // as such and must not be misrepresented as being the original source. // Such altered versions also must not be misrepresented as being // Info-ZIP releases--including, but not limited to, labeling of the // altered versions with the names "Info-ZIP" (or any variation thereof, // including, but not limited to, different capitalizations), // "Pocket UnZip", "WiZ" or "MacZip" without the explicit permission of // Info-ZIP. Such altered versions are further prohibited from // misrepresentative use of the Zip-Bugs or Info-ZIP e-mail addresses or // of the Info-ZIP URL(s). // // 4. Info-ZIP retains the right to use the names "Info-ZIP", "Zip", "UnZip", // "UnZipSFX", "WiZ", "Pocket UnZip", "Pocket Zip", and "MacZip" for its // own source and binary releases. // /////////////////////////////////////////////////////////////////////////////// #define _USE_32BIT_TIME_T //+++1.2 #define STRICT #define WIN32_LEAN_AND_MEAN #include <windows.h> #include <time.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <tchar.h> #include "XUnzip.h" #pragma warning(disable : 4996) // disable bogus deprecation warning // THIS FILE is almost entirely based upon code by Jean-loup Gailly // and Mark Adler. It has been modified by Lucian Wischik. // The original code may be found at http://www.gzip.org/zlib/ // The original copyright text follows. // // // // 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 // jloup@gzip.org madler@alumni.caltech.edu // // // 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 #define zmalloc(len) malloc(len) #define zfree(p) free(p) /* void *zmalloc(unsigned int len) { char *buf = new char[len+32]; for (int i=0; i<16; i++) { buf[i]=i; buf[len+31-i]=i; } *((unsig