diff options
| author | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
|---|---|---|
| committer | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
| commit | 39ed87570bdb2f86969d4be821c94b722dc71179 (patch) | |
| tree | abc53757f75f40c80278e87650ea92808274aa59 /sp/src/public/zip | |
| download | source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.tar.xz source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.zip | |
First version of the SOurce SDK 2013
Diffstat (limited to 'sp/src/public/zip')
| -rw-r--r-- | sp/src/public/zip/XUnzip.h | 424 | ||||
| -rw-r--r-- | sp/src/public/zip/XZip.h | 342 |
2 files changed, 766 insertions, 0 deletions
diff --git a/sp/src/public/zip/XUnzip.h b/sp/src/public/zip/XUnzip.h new file mode 100644 index 00000000..14d16102 --- /dev/null +++ b/sp/src/public/zip/XUnzip.h @@ -0,0 +1,424 @@ +// XUnzip.h Version 1.1
+//
+// Authors: Mark Adler et al. (see below)
+//
+// Modified by: Lucian Wischik
+//
+// 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
+//
+// 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.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef XUNZIP_H
+#define XUNZIP_H
+
+#if !defined( DWORD )
+#ifdef _WIN32
+typedef unsigned long DWORD;
+#else
+typedef unsigned int DWORD;
+#endif
+#endif
+
+#if !defined( TCHAR )
+typedef char TCHAR;
+#endif
+
+#if defined(POSIX) && !defined(MAX_PATH)
+#include <limits.h>
+#define MAX_PATH PATH_MAX
+typedef bool BOOL;
+#endif
+
+#ifndef XZIP_H
+#if !defined(DECLARE_HANDLE)
+#if !defined(HANDLE)
+typedef void *HANDLE;
+#endif
+#define DECLARE_HANDLE(name) typedef struct name##__ { int unused; } *name
+#endif
+DECLARE_HANDLE(HZIP); // An HZIP identifies a zip file that is being created
+#endif
+
+#if defined(_WIN32) && !defined(_WINBASE_) && !defined(_FILETIME_)
+#define _FILETIME_
+typedef struct _FILETIME
+{
+ DWORD dwLowDateTime;
+ DWORD dwHighDateTime;
+} FILETIME, * LPFILETIME, *PFILETIME;
+#endif
+
+#if defined(POSIX)
+typedef time_t FILETIME;
+#endif
+
+typedef DWORD ZRESULT;
+// return codes from any of the zip functions. Listed later.
+
+#define ZIP_HANDLE 1
+#define ZIP_FILENAME 2
+#define ZIP_MEMORY 3
+
+typedef struct
+{ int index; // index of this file within the zip
+ char name[MAX_PATH]; // filename within the zip
+ DWORD attr; // attributes, as in GetFileAttributes.
+ FILETIME atime,ctime,mtime;// access, create, modify filetimes
+ long comp_size; // sizes of item, compressed and uncompressed. These
+ long unc_size; // may be -1 if not yet known (e.g. being streamed in)
+} ZIPENTRY;
+
+typedef struct
+{ int index; // index of this file within the zip
+ TCHAR name[MAX_PATH]; // filename within the zip
+ DWORD attr; // attributes, as in GetFileAttributes.
+ FILETIME atime,ctime,mtime;// access, create, modify filetimes
+ long comp_size; // sizes of item, compressed and uncompressed. These
+ long unc_size; // may be -1 if not yet known (e.g. being streamed in)
+} ZIPENTRYW;
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// OpenZip()
+//
+// Purpose: Open an existing zip archive file
+//
+// Parameters: z - archive file name if flags is ZIP_FILENAME; for other
+// uses see below
+// len - for memory (ZIP_MEMORY) should be the buffer size;
+// for other uses, should be 0
+// flags - indicates usage, see below; for files, this will be
+// ZIP_FILENAME
+//
+// Returns: HZIP - non-zero if zip archive opened ok, otherwise 0
+//
+HZIP OpenZip(void *z, unsigned int len, DWORD flags);
+// OpenZip - opens a zip file and returns a handle with which you can
+// subsequently examine its contents. You can open a zip file from:
+// from a pipe: OpenZip(hpipe_read,0, ZIP_HANDLE);
+// from a file (by handle): OpenZip(hfile,0, ZIP_HANDLE);
+// from a file (by name): OpenZip("c:\\test.zip",0, ZIP_FILENAME);
+// from a memory block: OpenZip(bufstart, buflen, ZIP_MEMORY);
+// If the file is opened through a pipe, then items may only be
+// accessed in increasing order, and an item may only be unzipped once,
+// although GetZipItem can be called immediately before and after unzipping
+// it. If it's opened i n any other way, then full random access is possible.
+// Note: pipe input is not yet implemented.
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// GetZipItem()
+//
+// Purpose: Get information about an item in an open zip archive
+//
+// Parameters: hz - handle of open zip archive
+// index - index number (0 based) of item in zip
+// ze - pointer to a ZIPENTRY (if ANSI) or ZIPENTRYW struct
+// (if Unicode)
+//
+// Returns: ZRESULT - ZR_OK if success, otherwise some other value
+//
+
+#ifdef _UNICODE
+#define GetZipItem GetZipItemW
+#else
+#define GetZipItem GetZipItemA
+#endif
+
+ZRESULT GetZipItemA(HZIP hz, int index, ZIPENTRY *ze);
+ZRESULT GetZipItemW(HZIP hz, int index, ZIPENTRYW *ze);
+// GetZipItem - call this to get information about an item in the zip.
+// If index is -1 and the file wasn't opened through a pipe,
+// then it returns information about the whole zipfile
+// (and in particular ze.index returns the number of index items).
+// Note: the item might be a directory (ze.attr & FILE_ATTRIBUTE_DIRECTORY)
+// See below for notes on what happens when you unzip such an item.
+// Note: if you are opening the zip through a pipe, then random access
+// is not possible and GetZipItem(-1) fails and you can't discover the number
+// of items except by calling GetZipItem on each one of them in turn,
+// starting at 0, until eventually the call fails. Also, in the event that
+// you are opening through a pipe and the zip was itself created into a pipe,
+// then then comp_size and sometimes unc_size as well may not be known until
+// after the item has been unzipped.
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// FindZipItem()
+//
+// Purpose: Find item by name and return information about it
+//
+// Parameters: hz - handle of open zip archive
+// name - name of file to look for inside zip archive
+// ic - TRUE = case insensitive
+// index - pointer to index number returned, or -1
+// ze - pointer to a ZIPENTRY (if ANSI) or ZIPENTRYW struct
+// (if Unicode)
+//
+// Returns: ZRESULT - ZR_OK if success, otherwise some other value
+//
+
+#ifdef _UNICODE
+#define FindZipItem FindZipItemW
+#else
+#define FindZipItem FindZipItemA
+#endif
+
+ZRESULT FindZipItemA(HZIP hz, const TCHAR *name, bool ic, int *index, ZIPENTRY *ze);
+ZRESULT FindZipItemW(HZIP hz, const TCHAR *name, bool ic, int *index, ZIPENTRYW *ze);
+// FindZipItem - finds an item by name. ic means 'insensitive to case'.
+// It returns the index of the item, and returns information about it.
+// If nothing was found, then index is set to -1 and the function returns
+// an error code.
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// UnzipItem()
+//
+// Purpose: Find item by index and unzip it
+//
+// Parameters: hz - handle of open zip archive
+// index - index number of file to unzip
+// dst - target file name of unzipped file
+// len - for memory (ZIP_MEMORY. length of buffer;
+// otherwise 0
+// flags - indicates usage, see below; for files, this will be
+// ZIP_FILENAME
+//
+// Returns: ZRESULT - ZR_OK if success, otherwise some other value
+//
+
+ZRESULT UnzipItem(HZIP hz, int index, void *dst, unsigned int len, DWORD flags);
+// UnzipItem - given an index to an item, unzips it. You can unzip to:
+// to a pipe: UnzipItem(hz,i, hpipe_write,0,ZIP_HANDLE);
+// to a file (by handle): UnzipItem(hz,i, hfile,0,ZIP_HANDLE);
+// to a file (by name): UnzipItem(hz,i, ze.name,0,ZIP_FILENAME);
+// to a memory block: UnzipItem(hz,i, buf,buflen,ZIP_MEMORY);
+// In the final case, if the buffer isn't large enough to hold it all,
+// then the return code indicates that more is yet to come. If it was
+// large enough, and you want to know precisely how big, GetZipItem.
+// Note: zip files are normally stored with relative pathnames. If you
+// unzip with ZIP_FILENAME a relative pathname then the item gets created
+// relative to the current directory - it first ensures that all necessary
+// subdirectories have been created. Also, the item may itself be a directory.
+// If you unzip a directory with ZIP_FILENAME, then the directory gets created.
+// If you unzip it to a handle or a memory block, then nothing gets created
+// and it emits 0 bytes.
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// CloseZip()
+//
+// Purpose: Close an open zip archive
+//
+// Parameters: hz - handle to an open zip archive
+//
+// Returns: ZRESULT - ZR_OK if success, otherwise some other value
+//
+ZRESULT CloseZip(HZIP hz);
+// CloseZip - the zip handle must be closed with this function.
+
+unsigned int FormatZipMessage(ZRESULT code, char *buf,unsigned int len);
+// FormatZipMessage - given an error code, formats it as a string.
+// It returns the length of the error message. If buf/len points
+// to a real buffer, then it also writes as much as possible into there.
+
+
+// These are the result codes:
+#define ZR_OK 0x00000000 // nb. the pseudo-code zr-recent is never returned,
+#define ZR_RECENT 0x00000001 // but can be passed to FormatZipMessage.
+// The following come from general system stuff (e.g. files not openable)
+#define ZR_GENMASK 0x0000FF00
+#define ZR_NODUPH 0x00000100 // couldn't duplicate the handle
+#define ZR_NOFILE 0x00000200 // couldn't create/open the file
+#define ZR_NOALLOC 0x00000300 // failed to allocate some resource
+#define ZR_WRITE 0x00000400 // a general error writing to the file
+#define ZR_NOTFOUND 0x00000500 // couldn't find that file in the zip
+#define ZR_MORE 0x00000600 // there's still more data to be unzipped
+#define ZR_CORRUPT 0x00000700 // the zipfile is corrupt or not a zipfile
+#define ZR_READ 0x00000800 // a general error reading the file
+// The following come from mistakes on the part of the caller
+#define ZR_CALLERMASK 0x00FF0000
+#define ZR_ARGS 0x00010000 // general mistake with the arguments
+#define ZR_NOTMMAP 0x00020000 // tried to ZipGetMemory, but that only works on mmap zipfiles, which yours wasn't
+#define ZR_MEMSIZE 0x00030000 // the memory size is too small
+#define ZR_FAILED 0x00040000 // the thing was already failed when you called this function
+#define ZR_ENDED 0x00050000 // the zip creation has already been closed
+#define ZR_MISSIZE 0x00060000 // the indicated input file size turned out mistaken
+#define ZR_PARTIALUNZ 0x00070000 // the file had already been partially unzipped
+#define ZR_ZMODE 0x00080000 // tried to mix creating/opening a zip
+// The following come from bugs within the zip library itself
+#define ZR_BUGMASK 0xFF000000
+#define ZR_NOTINITED 0x01000000 // initialisation didn't work
+#define ZR_SEEK 0x02000000 // trying to seek in an unseekable file
+#define ZR_NOCHANGE 0x04000000 // changed its mind on storage, but not allowed
+#define ZR_FLATE 0x05000000 // an internal error in the de/inflation code
+
+
+
+
+
+// e.g.
+//
+// SetCurrentDirectory("c:\\docs\\stuff");
+// HZIP hz = OpenZip("c:\\stuff.zip",0,ZIP_FILENAME);
+// ZIPENTRY ze; GetZipItem(hz,-1,&ze); int numitems=ze.index;
+// for (int i=0; i<numitems; i++)
+// { GetZipItem(hz,i,&ze);
+// UnzipItem(hz,i,ze.name,0,ZIP_FILENAME);
+// }
+// CloseZip(hz);
+//
+//
+// HRSRC hrsrc = FindResource(hInstance,MAKEINTRESOURCE(1),RT_RCDATA);
+// HANDLE hglob = LoadResource(hInstance,hrsrc);
+// void *zipbuf=LockResource(hglob);
+// unsigned int ziplen=SizeofResource(hInstance,hrsrc);
+// HZIP hz = OpenZip(zipbuf, ziplen, ZIP_MEMORY);
+// - unzip to a membuffer -
+// ZIPENTRY ze; int i; FindZipItem(hz,"file.dat",&i,&ze);
+// char *ibuf = new char[ze.unc_size];
+// UnzipItem(hz,i, ibuf, ze.unc_size,ZIP_MEMORY);
+// delete[] buf;
+// - unzip to a fixed membuff -
+// ZIPENTRY ze; int i; FindZipItem(hz,"file.dat",&i,&ze);
+// char ibuf[1024]; ZIPRESULT zr=ZR_MORE; unsigned long totsize=0;
+// while (zr==ZR_MORE)
+// { zr = UnzipItem(hz,i, ibuf,1024,ZIP_MEMORY);
+// unsigned long bufsize=1024; if (zr==ZR_OK) bufsize=ze.unc_size-totsize;
+// totsize+=bufsize;
+// }
+// - unzip to a pipe -
+// HANDLE hthread=CreateWavReaderThread(&hread,&hwrite);
+// FindZipItem(hz,"sound.wav",&i,&ze);
+// UnzipItem(hz,i, hwrite,0,ZIP_HANDLE);
+// CloseHandle(hwrite);
+// WaitForSingleObject(hthread,INFINITE);
+// CloseHandle(hread); CloseHandle(hthread);
+// - finished -
+// CloseZip(hz);
+// // note: no need to free resources obtained through Find/Load/LockResource
+//
+//
+// SetCurrentDirectory("c:\\docs\\pipedzipstuff");
+// HANDLE hread,hwrite; CreatePipe(&hread,&hwrite);
+// CreateZipWriterThread(hwrite);
+// HZIP hz = OpenZip(hread,0,ZIP_HANDLE);
+// for (int i=0; ; i++)
+// { ZIPENTRY ze; ZRESULT res = GetZipItem(hz,i,&ze);
+// if (res!=ZE_OK) break; // no more
+// UnzipItem(hz,i, ze.name,0,ZIP_FILENAME);
+// }
+// CloseZip(hz);
+//
+
+
+
+
+// Now we indulge in a little skullduggery so that the code works whether
+// the user has included just zip or both zip and unzip.
+// Idea: if header files for both zip and unzip are present, then presumably
+// the cpp files for zip and unzip are both present, so we will call
+// one or the other of them based on a dynamic choice. If the header file
+// for only one is present, then we will bind to that particular one.
+HZIP OpenZipU(void *z,unsigned int len,DWORD flags);
+ZRESULT CloseZipU(HZIP hz);
+unsigned int FormatZipMessageU(ZRESULT code, char *buf,unsigned int len);
+bool IsZipHandleU(HZIP hz);
+#define OpenZip OpenZipU
+
+#ifdef XZIP_H
+#undef CloseZip
+#define CloseZip(hz) (IsZipHandleU(hz)?CloseZipU(hz):CloseZipZ(hz))
+#else
+#define CloseZip CloseZipU
+#define FormatZipMessage FormatZipMessageU
+#endif
+
+// safe defintion of unzip, catches exceptions
+bool SafeUnzipMemory( const void *pvZipped, int cubZipped, void *pvDest, int cubDest /* should be the exact expected unzipped size */ );
+
+
+#endif //XUNZIP_H
diff --git a/sp/src/public/zip/XZip.h b/sp/src/public/zip/XZip.h new file mode 100644 index 00000000..e88343f2 --- /dev/null +++ b/sp/src/public/zip/XZip.h @@ -0,0 +1,342 @@ +// XZip.h Version 1.1
+//
+// Authors: Mark Adler et al. (see below)
+//
+// Modified by: Lucian Wischik
+//
+// 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
+//
+// 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.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef XZIP_H
+#define XZIP_H
+
+// ZIP functions -- for creating zip files
+// This file is a repackaged form of the Info-Zip source code available
+// at www.info-zip.org. The original copyright notice may be found in
+// zip.cpp. The repackaging was done by Lucian Wischik to simplify its
+// use in Windows/C++.
+
+#if !defined( DWORD )
+#ifdef _WIN32
+typedef unsigned long DWORD;
+#else
+typedef unsigned int DWORD;
+#endif
+#endif
+
+#if !defined( TCHAR )
+typedef char TCHAR;
+#endif
+
+#ifndef XUNZIP_H
+#if !defined(DECLARE_HANDLE)
+#if !defined(HANDLE)
+typedef void * HANDLE;
+#endif
+#define DECLARE_HANDLE(name) typedef struct name##__ { int unused; } *name
+#endif
+DECLARE_HANDLE(HZIP); // An HZIP identifies a zip file that is being created
+#endif
+
+typedef DWORD ZRESULT; // result codes from any of the zip functions. Listed later.
+
+// flag values passed to some functions
+#define ZIP_HANDLE 1
+#define ZIP_FILENAME 2
+#define ZIP_MEMORY 3
+#define ZIP_FOLDER 4
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// CreateZip()
+//
+// Purpose: Create a zip archive file
+//
+// Parameters: z - archive file name if flags is ZIP_FILENAME; for other
+// uses see below
+// len - for memory (ZIP_MEMORY) should be the buffer size;
+// for other uses, should be 0
+// flags - indicates usage, see below; for files, this will be
+// ZIP_FILENAME
+//
+// Returns: HZIP - non-zero if zip archive created ok, otherwise 0
+//
+HZIP CreateZip(void *z, unsigned int len, DWORD flags);
+// CreateZip - call this to start the creation of a zip file.
+// As the zip is being created, it will be stored somewhere:
+// to a pipe: CreateZip(hpipe_write, 0,ZIP_HANDLE);
+// in a file (by handle): CreateZip(hfile, 0,ZIP_HANDLE);
+// in a file (by name): CreateZip("c:\\test.zip", 0,ZIP_FILENAME);
+// in memory: CreateZip(buf, len,ZIP_MEMORY);
+// or in pagefile memory: CreateZip(0, len,ZIP_MEMORY);
+// The final case stores it in memory backed by the system paging file,
+// where the zip may not exceed len bytes. This is a bit friendlier than
+// allocating memory with new[]: it won't lead to fragmentation, and the
+// memory won't be touched unless needed.
+// Note: because pipes don't allow random access, the structure of a zipfile
+// created into a pipe is slightly different from that created into a file
+// or memory. In particular, the compressed-size of the item cannot be
+// stored in the zipfile until after the item itself. (Also, for an item added
+// itself via a pipe, the uncompressed-size might not either be known until
+// after.) This is not normally a problem. But if you try to unzip via a pipe
+// as well, then the unzipper will not know these things about the item until
+// after it has been unzipped. Therefore: for unzippers which don't just write
+// each item to disk or to a pipe, but instead pre-allocate memory space into
+// which to unzip them, then either you have to create the zip not to a pipe,
+// or you have to add items not from a pipe, or at least when adding items
+// from a pipe you have to specify the length.
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// ZipAdd()
+//
+// Purpose: Add a file to a zip archive
+//
+// Parameters: hz - handle to an open zip archive
+// dstzn - name used inside the zip archive to identify the file
+// src - for a file (ZIP_FILENAME) this specifies the filename
+// to be added to the archive; for other uses, see below
+// len - for memory (ZIP_MEMORY) this specifies the buffer
+// length; for other uses, this should be 0
+// flags - indicates usage, see below; for files, this will be
+// ZIP_FILENAME
+//
+// Returns: ZRESULT - ZR_OK if success, otherwise some other value
+//
+ZRESULT ZipAdd(HZIP hz, const TCHAR *dstzn, void *src, unsigned int len, DWORD flags);
+// ZipAdd - call this for each file to be added to the zip.
+// dstzn is the name that the file will be stored as in the zip file.
+// The file to be added to the zip can come
+// from a pipe: ZipAdd(hz,"file.dat", hpipe_read,0,ZIP_HANDLE);
+// from a file: ZipAdd(hz,"file.dat", hfile,0,ZIP_HANDLE);
+// from a fname: ZipAdd(hz,"file.dat", "c:\\docs\\origfile.dat",0,ZIP_FILENAME);
+// from memory: ZipAdd(hz,"subdir\\file.dat", buf,len,ZIP_MEMORY);
+// (folder): ZipAdd(hz,"subdir", 0,0,ZIP_FOLDER);
+// Note: if adding an item from a pipe, and if also creating the zip file itself
+// to a pipe, then you might wish to pass a non-zero length to the ZipAdd
+// function. This will let the zipfile store the items size ahead of the
+// compressed item itself, which in turn makes it easier when unzipping the
+// zipfile into a pipe.
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// CloseZip()
+//
+// Purpose: Close an open zip archive
+//
+// Parameters: hz - handle to an open zip archive
+//
+// Returns: ZRESULT - ZR_OK if success, otherwise some other value
+//
+ZRESULT CloseZip(HZIP hz);
+// CloseZip - the zip handle must be closed with this function.
+
+
+ZRESULT ZipGetMemory(HZIP hz, void **buf, unsigned long *len);
+// ZipGetMemory - If the zip was created in memory, via ZipCreate(0,ZIP_MEMORY),
+// then this function will return information about that memory block.
+// buf will receive a pointer to its start, and len its length.
+// Note: you can't add any more after calling this.
+
+
+unsigned int FormatZipMessage(ZRESULT code, char *buf,unsigned int len);
+// FormatZipMessage - given an error code, formats it as a string.
+// It returns the length of the error message. If buf/len points
+// to a real buffer, then it also writes as much as possible into there.
+
+
+
+// These are the result codes:
+#define ZR_OK 0x00000000 // nb. the pseudo-code zr-recent is never returned,
+#define ZR_RECENT 0x00000001 // but can be passed to FormatZipMessage.
+// The following come from general system stuff (e.g. files not openable)
+#define ZR_GENMASK 0x0000FF00
+#define ZR_NODUPH 0x00000100 // couldn't duplicate the handle
+#define ZR_NOFILE 0x00000200 // couldn't create/open the file
+#define ZR_NOALLOC 0x00000300 // failed to allocate some resource
+#define ZR_WRITE 0x00000400 // a general error writing to the file
+#define ZR_NOTFOUND 0x00000500 // couldn't find that file in the zip
+#define ZR_MORE 0x00000600 // there's still more data to be unzipped
+#define ZR_CORRUPT 0x00000700 // the zipfile is corrupt or not a zipfile
+#define ZR_READ 0x00000800 // a general error reading the file
+// The following come from mistakes on the part of the caller
+#define ZR_CALLERMASK 0x00FF0000
+#define ZR_ARGS 0x00010000 // general mistake with the arguments
+#define ZR_NOTMMAP 0x00020000 // tried to ZipGetMemory, but that only works on mmap zipfiles, which yours wasn't
+#define ZR_MEMSIZE 0x00030000 // the memory size is too small
+#define ZR_FAILED 0x00040000 // the thing was already failed when you called this function
+#define ZR_ENDED 0x00050000 // the zip creation has already been closed
+#define ZR_MISSIZE 0x00060000 // the indicated input file size turned out mistaken
+#define ZR_PARTIALUNZ 0x00070000 // the file had already been partially unzipped
+#define ZR_ZMODE 0x00080000 // tried to mix creating/opening a zip
+// The following come from bugs within the zip library itself
+#define ZR_BUGMASK 0xFF000000
+#define ZR_NOTINITED 0x01000000 // initialisation didn't work
+#define ZR_SEEK 0x02000000 // trying to seek in an unseekable file
+#define ZR_NOCHANGE 0x04000000 // changed its mind on storage, but not allowed
+#define ZR_FLATE 0x05000000 // an internal error in the de/inflation code
+
+
+
+// e.g.
+//
+// (1) Traditional use, creating a zipfile from existing files
+// HZIP hz = CreateZip("c:\\temp.zip",0,ZIP_FILENAME);
+// ZipAdd(hz,"src1.txt", "c:\\src1.txt",0,ZIP_FILENAME);
+// ZipAdd(hz,"src2.bmp", "c:\\src2_origfn.bmp",0,ZIP_FILENAME);
+// CloseZip(hz);
+//
+// (2) Memory use, creating an auto-allocated mem-based zip file from various sources
+// HZIP hz = CreateZip(0,100000,ZIP_MEMORY);
+// // adding a conventional file...
+// ZipAdd(hz,"src1.txt", "c:\\src1.txt",0,ZIP_FILENAME);
+// // adding something from memory...
+// char buf[1000]; for (int i=0; i<1000; i++) buf[i]=(char)(i&0x7F);
+// ZipAdd(hz,"file.dat", buf,1000,ZIP_MEMORY);
+// // adding something from a pipe...
+// HANDLE hread,hwrite; CreatePipe(&hread,&write,NULL,0);
+// HANDLE hthread = CreateThread(ThreadFunc,(void*)hwrite);
+// ZipAdd(hz,"unz3.dat", hread,0,ZIP_HANDLE);
+// WaitForSingleObject(hthread,INFINITE);
+// CloseHandle(hthread); CloseHandle(hread);
+// ... meanwhile DWORD CALLBACK ThreadFunc(void *dat)
+// { HANDLE hwrite = (HANDLE)dat;
+// char buf[1000]={17};
+// DWORD writ; WriteFile(hwrite,buf,1000,&writ,NULL);
+// CloseHandle(hwrite);
+// return 0;
+// }
+// // and now that the zip is created, let's do something with it:
+// void *zbuf; unsigned long zlen; ZipGetMemory(hz,&zbuf,&zlen);
+// HANDLE hfz = CreateFile("test2.zip",GENERIC_WRITE,CREATE_ALWAYS);
+// DWORD writ; WriteFile(hfz,zbuf,zlen,&writ,NULL);
+// CloseHandle(hfz);
+// CloseZip(hz);
+//
+// (3) Handle use, for file handles and pipes
+// HANDLE hzread,hzwrite; CreatePipe(&hzread,&hzwrite);
+// HANDLE hthread = CreateThread(ZipReceiverThread,(void*)hread);
+// HZIP hz = ZipCreate(hzwrite,ZIP_HANDLE);
+// // ... add to it
+// CloseZip(hz);
+// CloseHandle(hzwrite);
+// WaitForSingleObject(hthread,INFINITE);
+// CloseHandle(hthread);
+// ... meanwhile DWORD CALLBACK ThreadFunc(void *dat)
+// { HANDLE hread = (HANDLE)dat;
+// char buf[1000];
+// while (true)
+// { DWORD red; ReadFile(hread,buf,1000,&red,NULL);
+// // ... and do something with this zip data we're receiving
+// if (red==0) break;
+// }
+// CloseHandle(hread);
+// return 0;
+// }
+//
+
+
+// Now we indulge in a little skullduggery so that the code works whether
+// the user has included just zip or both zip and unzip.
+// Idea: if header files for both zip and unzip are present, then presumably
+// the cpp files for zip and unzip are both present, so we will call
+// one or the other of them based on a dynamic choice. If the header file
+// for only one is present, then we will bind to that particular one.
+HZIP CreateZipZ(void *z,unsigned int len,DWORD flags);
+ZRESULT CloseZipZ(HZIP hz);
+unsigned int FormatZipMessageZ(ZRESULT code, char *buf,unsigned int len);
+bool IsZipHandleZ(HZIP hz);
+#define CreateZip CreateZipZ
+
+#ifdef XUNZIP_H
+#undef CloseZip
+#define CloseZip(hz) (IsZipHandleZ(hz)?CloseZipZ(hz):CloseZipU(hz))
+#else
+#define CloseZip CloseZipZ
+#define FormatZipMessage FormatZipMessageZ
+#endif
+
+
+#endif //XZIP_H
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