zip
zip is a file format to archive files, composed of binary data.chunk
- name
- local_file_header
- local_file_header_extra
- data
- central_file_header
- central_file_header_extra
- zip64_end_of_central_directory_record
- zip64_end_of_central_directory_locator
- end_of_central_directory_record
- signature
50 4b 03 04
01 00
- 0byte
50 4b 01 02
01 00
50 4b 06 06
50 4b 06 07
50 4b 05 06
- data
- (26+n)bytes
- (0,10,18)bytes
- ?
- (42+n)bytes
- (0,10,18,26)bytes
- (52+n)bytes
- 16bytes
- (18+n)bytes
local_file_header
data
- version_needed_to_extract(2)
- general_purpose_bit_flag(2)
- compression_method(2)
- last_mod_file_time(2)
- last_mod_file_date(2)
- crc(4)
- compressed_size(4)
- uncompressed_size(4)
- file_name_length(2)
- extra_field_length(2)
- file_name(?)
- extra_field(?)
local_file_header_extra
data
- size(2)
- original_size(8)
- compressed_size(8)
central_file_header
data
- version_made_by(2)
- version_needed_to_extract(2)
- general_purpose_bit_flag(2)
- compression_method(2)
- last_mod_file_time(2)
- last_mod_file_date(2)
- crc(4)
- compressed_size(4)
- uncompressed_size(4)
- file_name_length(2)
- extra_field_length(2)
- file_comment_length(2)
- disk_number_start(2)
- internal_file_attributes(2)
- external_file_attributes(4)
- relative_offset_of_local_header(4)
- file_name(?)
- extra_field(?)
- file_comment(?)
central_file_header_extra
data
- size(2)
- original_size(8)
- compressed_size(8)
- relative_header_offset(8)
zip64_end_of_central_directory_record
data
- size_of_zip64_end_of_central_directory_record(8)
- version_made_by(2)
- version_needed_to_extract(2)
- number_of_this_disk(4)
- number_of_the_disk_with_the_start_of_the_central_directory(4)
- total_number_of_entries_in_the_central_directory_on_this_disk(8)
- total_number_of_entries_in_the_central_directory(8)
- size_of_the_central_directory(8)
- offset_of_start_of_central_directory_with_respect_to_the_starting_disk_number(8)
- zip64_extensible_data_sector(?)
zip64_end_of_central_directory_locator
data
- number_of_the_disk_with_the_start_of_the_zip64_end_of_central_directory(4)
- relative_offset_of_the_zip64_end_of_central_directory_record(8)
- total_number_of_disks(4)
end_of_central_directory_record
data
- number_of_this_disk(2)
- number_of_the_disk_with_the_start_of_the_central_directory(2)
- total_number_of_entries_in_the_central_directory_on_this_disk(2)
- total_number_of_entries_in_the_central_directory(2)
- size_of_the_central_directory(4)
- offset_of_start_of_central_directory_with_respect_to_the_starting_disk_number(4)
- .ZIP_file_comment_length(2)
- .ZIP_file_comment(?)