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ZIP压缩文件数据结构解析三



作者: 来源: 日期:2018/1/7 7:07:34 人气:7 

  G.  Zip64 end of central directory record

        zip64 end of central dir 

        signature                       4 bytes  (0x06064b50)

        size of zip64 end of central

        directory record                8 bytes

        version made by                 2 bytes

        version needed to extract       2 bytes

        number of this disk             4 bytes

        number of the disk with the 

        start of the central directory  4 bytes

        total number of entries in the

        central directory on this disk  8 bytes

        total number of entries in the

        central directory               8 bytes

        size of the central directory   8 bytes

        offset of start of central

        directory with respect to

        the starting disk number        8 bytes

        zip64 extensible data sector    (variable size)


        The above record structure defines Version 1 of the 

        Zip64 end of central directory record. Version 1 was 

        implemented in versions of this specification preceding 

        6.2 in support of the ZIP64(tm) large file feature. The 

        introduction of the Central Directory Encryption feature 

        implemented in version 6.2 as part of the Strong Encryption 

        Specification defines Version 2 of this record structure. 

        Refer to the section describing the Strong Encryption 

        Specification for details on the version 2 format for 

        this record.

  H.  Zip64 end of central directory locator

        zip64 end of central dir locator 

        signature                       4 bytes  (0x07064b50)

        number of the disk with the

        start of the zip64 end of 

        central directory               4 bytes

        relative offset of the zip64

        end of central directory record 8 bytes

        total number of disks           4 bytes

  I.  End of central directory record:

        end of central dir signature    4 bytes  (0x06054b50)

        number of this disk             2 bytes

        number of the disk with the

        start of the central directory  2 bytes

        total number of entries in the

        central directory on this disk  2 bytes

        total number of entries in

        the central directory           2 bytes

        size of the central directory   4 bytes

        offset of start of central

        directory with respect to

        the starting disk number        4 bytes

        .ZIP file comment length        2 bytes

        .ZIP file comment       (variable size)