sl@0: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // ziparchive.h
sl@0: // $Revision: 1.1 $
sl@0: // 
sl@0: //
sl@0: 
sl@0: #ifndef _EZIP_ARCHIVE_H_
sl@0: #define _EZIP_ARCHIVE_H_
sl@0: 
sl@0: #include "localtypes.h"
sl@0: 
sl@0: /**
sl@0: This class represents a zip archive
sl@0: 
sl@0: @publishedAll
sl@0: @released
sl@0: */
sl@0: namespace TOLDEZIP
sl@0: {
sl@0: class CZipArchive: public CBase
sl@0: 	{
sl@0: public:
sl@0: 
sl@0:     enum 
sl@0: 		{	
sl@0: 		KZipArchiveError 					= -256,
sl@0: 	    KCentralDirectoryTrailerNotFound	= KZipArchiveError - 1,
sl@0: 	    KCentralDirectoryTrailerInvalid		= KZipArchiveError - 3,
sl@0: 	    KCompressionMethodNotSupported		= KZipArchiveError - 4,
sl@0: 	    KLocalHeaderSignatureInvalid		= KZipArchiveError - 5,
sl@0: 	    KMultiDiskArchivesNotSupported		= KZipArchiveError - 6,
sl@0: 		KMemberNotFound						= KZipArchiveError - 7,
sl@0: 
sl@0: 		KZipArchiveMinError					= KZipArchiveError - 8
sl@0: 
sl@0: 		};
sl@0:     
sl@0:     enum TCompressionMethod 
sl@0: 		{
sl@0: 		
sl@0: 		EStored 		= 0,
sl@0: 		EShrunk 		= 1,
sl@0: 		EReducedCFOne	= 2,
sl@0: 		EReducedCFTwo	= 3,
sl@0: 		EReducedCFThree	= 4,
sl@0: 		EReducedCFFour	= 5,
sl@0: 		EImploded		= 6,
sl@0: 		EReservedOne	= 7,
sl@0: 		EDeflated		= 8,
sl@0: 		EReservedTwo	= 9,
sl@0: 		EPKWAREImploded	= 10
sl@0: 		
sl@0: 		};
sl@0: 
sl@0: protected:
sl@0: 
sl@0:     enum // Constants 
sl@0: 		{
sl@0:     
sl@0:         KCentralDirectorySignature  		= 0x06054b50,
sl@0:     	KCentralDirectoryHeaderSignature	= 0x02014b50,
sl@0:     	KLocalHeaderSignature   			= 0x04034b50
sl@0: 		};
sl@0: 	
sl@0: 	enum // Lengths 
sl@0: 		{
sl@0: 	
sl@0: 		KCentralDirectoryTrailerFixedLength = 22,
sl@0: 		KLocalHeaderFixedLength             = 30,
sl@0: 		KCentralDirectoryHeaderFixedLength	= 46,
sl@0: 		KSignatureLength                    =  4,
sl@0: 		KMaxTrailerSearchLength             = 65536
sl@0: 		};
sl@0: 	
sl@0: 	enum // Offsets 
sl@0: 		{
sl@0: 	
sl@0: 		KCentralFileHeaderFileNameLengthOffset   = 28,
sl@0: 		KCentralFileHeaderExtraFieldLengthOffset = 30,
sl@0: 		KCentralFileHeaderFileNameOffset         = 46
sl@0: 		};
sl@0: 	
sl@0: 	/**
sl@0: 	Represents the archive's central directory trailer - the central directory contains information
sl@0: 	about files in the arhive
sl@0: 
sl@0: 	@publishedAll
sl@0: 	@released
sl@0: 	*/
sl@0:     struct TCentralDirectoryTrailer 
sl@0: 		{
sl@0:         TUint32 iSignature;
sl@0: 		TUint16 iDiskNumber;
sl@0: 		TUint16 iStartDiskNumber;
sl@0: 		TUint16 iLocalEntryCount;
sl@0: 		TUint16 iTotalEntryCount;
sl@0: 		TUint32 iSize;
sl@0: 		TUint32 iOffset;
sl@0: 		TUint16 iCommentLength;
sl@0: 		// comment -- variable length
sl@0: 		};
sl@0: 
sl@0: 	/**
sl@0: 	Represents the archive's central directory header - the central directory contains information
sl@0: 	about files in the arhive
sl@0: 
sl@0: 	@publishedAll
sl@0: 	@released
sl@0: 	*/
sl@0: 	struct TCentralDirectoryHeader 
sl@0: 		{
sl@0: 		TUint32 iSignature;
sl@0: 		TUint16 iMadeBy;
sl@0: 		TUint16 iRequired;
sl@0: 		TUint16 iFlags;
sl@0: 		TUint16 iCompressionMethod;
sl@0: 		TUint16 iLastModifiedFileTime;
sl@0: 		TUint16 iLastModifiedFileDate;
sl@0: 		TUint32 iCRC32;
sl@0: 		TUint32 iCompressedSize;
sl@0: 		TUint32 iUncompressedSize;
sl@0: 		TUint16 iFileNameLength;
sl@0: 		TUint16 iExtraFieldLength;
sl@0: 		TUint16 iFileCommentLength;
sl@0: 		TUint16 iDiskNumberStart;
sl@0: 		TUint16 iInternalFileAttributes;
sl@0: 		TUint32 iExternalFileAttributes;
sl@0: 		TUint32 iLocalHeaderOffset;
sl@0: 		// file name    -- variable length 
sl@0: 		// extra field  -- variable length
sl@0: 		// file comment -- variable length
sl@0: 		};
sl@0: 
sl@0: 	/**
sl@0: 	Represents the archive's local header
sl@0: 
sl@0: 	@publishedAll
sl@0: 	@released
sl@0: 	*/
sl@0: 	struct TLocalHeader 
sl@0: 		{
sl@0: 		TUint32 iSignature;
sl@0: 		TUint16 iVersionNeeded;
sl@0: 		TUint16 iFlags;
sl@0: 		TUint16 iCompressionMethod;
sl@0: 		TUint16 iLastModifiedFileTime;
sl@0: 		TUint16 iLastModifiedFileDate;
sl@0: 		TUint32 iCRC32;
sl@0: 		TUint32 iCompressedSize;
sl@0: 		TUint32 iUncompressedSize;
sl@0: 		TUint16 iFileNameLength;
sl@0: 		TUint16 iExtraFieldLength;
sl@0: 		// file name    -- variable length 
sl@0: 		// extra field  -- variable length
sl@0: 		};
sl@0: 	};
sl@0: }//TOLDEZIP
sl@0: #endif /* !_ZIP_ARCHIVE_H_ */
sl@0: