199 lines
6.2 KiB
C++
199 lines
6.2 KiB
C++
//ZipStruct.h
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#if !defined(ZIPSTRUCT_H)
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#define ZIPSTRUCT_H
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#include "zlib.h"
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#include "ZipException.h"
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//½âѹÓõ½µÄ½á¹¹
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#define SIZECENTRALDIRITEM (0x2e)
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#define SIZEZIPLOCALHEADER (0x1e)
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#ifndef UNZ_BUFSIZE
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#define UNZ_BUFSIZE (16384)
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#endif
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#ifndef UNZ_MAXFILENAMEINZIP
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#define UNZ_MAXFILENAMEINZIP (256)
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#endif
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#define BUFREADCOMMENT (0x400)
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#define UNZ_PARAMERROR (-102)
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#define UNZ_BADZIPFILE (-103)
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#define UNZ_CRCERROR (-105)
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/* unz_global_info structure contain global data about the ZIPfile
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These data comes from the end of central dir */
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struct unz_global_info
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{
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uLong number_entry; /* total number of entries in
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the central dir on this disk */
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uLong size_comment; /* size of the global comment of the zipfile */
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};
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/* unz_file_info contain information about a file in the zipfile */
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struct unz_file_info
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{
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uLong version; /* version made by 2 bytes */
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uLong version_needed; /* version needed to extract 2 bytes */
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uLong flag; /* general purpose bit flag 2 bytes */
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uLong compression_method; /* compression method 2 bytes */
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uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
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uLong crc; /* crc-32 4 bytes */
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uLong compressed_size; /* compressed size 4 bytes */
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uLong uncompressed_size; /* uncompressed size 4 bytes */
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uLong size_filename; /* filename length 2 bytes */
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uLong size_file_extra; /* extra field length 2 bytes */
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uLong size_file_comment; /* file comment length 2 bytes */
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uLong disk_num_start; /* disk number start 2 bytes */
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uLong internal_fa; /* internal file attributes 2 bytes */
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uLong external_fa; /* external file attributes 4 bytes */
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CTime tmu_date;
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};
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/* unz_file_info_interntal contain internal info about a file in zipfile*/
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struct unz_file_info_internal
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{
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uLong offset_curfile;/* relative offset of local header 4 bytes */
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};
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/* file_in_zip_read_info_s contain internal information about a file in zipfile,
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when reading and decompress it */
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struct file_in_zip_read_info
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{
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file_in_zip_read_info();
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~file_in_zip_read_info();
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char *read_buffer; /* internal buffer for compressed data */
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z_stream stream; /* zLib stream structure for inflate */
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uLong pos_in_zipfile; /* position in byte on the zipfile, for fseek*/
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uLong stream_initialised; /* flag set if stream structure is initialised*/
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uLong offset_local_extrafield;/* offset of the local extra field */
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uInt size_local_extrafield;/* size of the local extra field */
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uLong pos_local_extrafield; /* position in the local extra field in read*/
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uLong crc32; /* crc32 of all data uncompressed */
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uLong crc32_wait; /* crc32 we must obtain after decompress all */
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uLong rest_read_compressed; /* number of byte to be decompressed */
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uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/
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// CFile* file; /* io structore of the zipfile */
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uLong compression_method; /* compression method (0==store) */
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uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
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};
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//ѹËõÓõ½µÄ½á¹¹
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#ifndef VERSIONMADEBY
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# define VERSIONMADEBY (0x0) /* platform depedent */
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#endif
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#define FLAG_LOCALHEADER_OFFSET (0x06)
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#define CRC_LOCALHEADER_OFFSET (0x0e)
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#define SIZECENTRALHEADER (0x2e) /* 46 */
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#ifndef Z_BUFSIZE
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#define Z_BUFSIZE (16384)
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#endif
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#ifndef Z_MAXFILENAMEINZIP
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#define Z_MAXFILENAMEINZIP (256)
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#endif
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#ifndef DEF_MEM_LEVEL
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#if MAX_MEM_LEVEL >= 8
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# define DEF_MEM_LEVEL 8
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#else
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# define DEF_MEM_LEVEL MAX_MEM_LEVEL
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#endif
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#endif
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#define SIZEDATA_INDATABLOCK (4096-(4*4))
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#define LOCALHEADERMAGIC (0x04034b50)
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#define CENTRALHEADERMAGIC (0x02014b50)
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#define ENDHEADERMAGIC (0x06054b50)
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#define SIZECENTRALHEADER (0x2e) /* 46 */
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// it doesn't compile anyway
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// const char z_copyright[] =
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// " unzip & zip 0.15 Copyright 1998 Gilles Vollant & MFC/C++ revision Copyright 2000 Tadeusz Dracz";
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#define ZIP_PARAMERROR (-102)
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struct zip_fileinfo
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{
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CTime tmz_date; /* date in understandable format */
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uLong dosDate; /* if dos_date == 0, tmu_date is used */
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/* uLong flag; */ /* general purpose bit flag 2 bytes */
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uLong internal_fa; /* internal file attributes 2 bytes */
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uLong external_fa; /* external file attributes 4 bytes */
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public:
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uLong get_dos_date();
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zip_fileinfo();
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};
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struct curfile_info
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{
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curfile_info();
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~curfile_info();
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z_stream stream; /* zLib stream structure for inflate */
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int stream_initialised; /* 1 is stream is initialised */
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UINT pos_in_buffered_data; /* last written byte in buffered_data */
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DWORD pos_local_header; /* offset of the local header of the file
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currenty writing */
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char* central_header; /* central header data for the current file */
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DWORD size_centralheader; /* size of the central header for cur file */
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uLong flag; /* flag of the file currently writing */
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int method; /* compression method of file currenty wr.*/
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Byte* buffered_data;/* buffer contain compressed data to be writ*/
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uLong dosDate;
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uLong crc32;
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public:
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void free_central_header();
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void alloc_central_header();
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};
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class linkedlist_datablock_internal
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{
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public:
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linkedlist_datablock_internal();
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~linkedlist_datablock_internal();
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class linkedlist_datablock_internal* next_datablock;
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uLong avail_in_this_block;
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uLong filled_in_this_block;
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uLong unused; /* for future use and alignement */
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unsigned char* data;
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};
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class CZipFile_Memory;
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class linkedlist_data
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{
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public:
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void add_data_in_datablock(char* buf, uLong len);
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linkedlist_data();
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~linkedlist_data();
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int write_datablock(CFile & f);
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int write_datablock(CZipFile_Memory *pZipFile_Memory);
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linkedlist_datablock_internal* first_block;
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linkedlist_datablock_internal* last_block;
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};
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#endif |