36 lines
831 B
Ruby
36 lines
831 B
Ruby
module Zip
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class ExtraField::Generic
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def self.register_map
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return unless const_defined?(:HEADER_ID)
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::Zip::ExtraField::ID_MAP[const_get(:HEADER_ID)] = self
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end
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def self.name
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@name ||= to_s.split('::')[-1]
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end
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# return field [size, content] or false
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def initial_parse(binstr)
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return false unless binstr
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if binstr[0, 2] != self.class.const_get(:HEADER_ID)
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warn 'WARNING: weird extra field header ID. Skip parsing it.'
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return false
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end
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[binstr[2, 2].unpack1('v'), binstr[4..-1]]
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end
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def to_local_bin
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s = pack_for_local
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self.class.const_get(:HEADER_ID) + [s.bytesize].pack('v') << s
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end
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def to_c_dir_bin
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s = pack_for_c_dir
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self.class.const_get(:HEADER_ID) + [s.bytesize].pack('v') << s
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end
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end
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end
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