31 lines
945 B
Ruby
31 lines
945 B
Ruby
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module Zip
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# Info-ZIP Extra for Zip64 size
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class ExtraField::Zip64 < ExtraField::Generic
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attr_accessor :original_size, :compressed_size, :relative_header_offset, :disk_start_number
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HEADER_ID = "\001\000"
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register_map
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def initialize(binstr = nil)
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@original_size = nil
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@compressed_size = nil
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@relative_header_offset = nil
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@disk_start_number = nil
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binstr and merge(binstr)
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end
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def merge(binstr)
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return if binstr.empty?
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id, size, @original_size, @compressed_size, @relative_header_offset, @disk_start_number = binstr.to_s.unpack("vvQQQV")
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end
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def pack_for_local
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return '' unless @original_size && @compressed_sie && @relative_header_offset && @disk_start_number
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[1, 16, @original_size, @compressed_size, @relative_header_offset, @disk_start_number].pack("vvQQQV")
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end
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def pack_for_c_dir
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pack_for_local
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end
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end
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end
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