lib/zip/extra_field/unix.rb
# frozen_string_literal: true
module Zip
# Info-ZIP Extra for UNIX uid/gid
class ExtraField::IUnix < ExtraField::Generic # :nodoc:
HEADER_ID = 'Ux'
register_map
def initialize(binstr = nil)
@uid = 0
@gid = 0
binstr && merge(binstr)
end
attr_accessor :uid, :gid
def merge(binstr)
return if binstr.empty?
size, content = initial_parse(binstr)
# size: 0 for central directory. 4 for local header
return if !size || size == 0
uid, gid = content.unpack('vv')
@uid = uid
@gid = gid
end
def ==(other)
@uid == other.uid && @gid == other.gid
end
def pack_for_local
[@uid, @gid].pack('vv')
end
def pack_for_c_dir
''
end
end
end