39 lines
743 B
Ruby
39 lines
743 B
Ruby
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module Zip
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# Info-ZIP Extra for UNIX uid/gid
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class ExtraField::IUnix < ExtraField::Generic
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HEADER_ID = "Ux"
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register_map
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def initialize(binstr = nil)
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@uid = 0
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@gid = 0
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binstr and merge(binstr)
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end
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attr_accessor :uid, :gid
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def merge(binstr)
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return if binstr.empty?
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size, content = initial_parse(binstr)
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# size: 0 for central directory. 4 for local header
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return if (!size || size == 0)
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uid, gid = content.unpack("vv")
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@uid ||= uid
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@gid ||= gid
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end
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def ==(other)
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@uid == other.uid &&
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@gid == other.gid
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end
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def pack_for_local
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[@uid, @gid].pack("vv")
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end
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def pack_for_c_dir
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""
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end
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end
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end
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