75 lines
1.6 KiB
Ruby
75 lines
1.6 KiB
Ruby
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##
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#
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# Net::DNS::RR::MX
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#
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# $Id: MX.rb,v 1.8 2006/07/28 07:33:36 bluemonk Exp $
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#
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##
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module Net
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module DNS
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class RR
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#------------------------------------------------------------
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# RR type MX
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#------------------------------------------------------------
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class MX < RR
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attr_reader :preference, :exchange
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private
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def check_mx(str)
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if str.strip =~ /^(\d+)\s+(\S+)$/
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return $1.to_i,$2
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else
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raise RRArgumentError, "MX section not valid"
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end
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end
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def build_pack
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@mx_pack = [@preference].pack("n") + pack_name(@exchange)
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@rdlength = @mx_pack.size
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end
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def set_type
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@type = Net::DNS::RR::Types.new("MX")
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end
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def get_data
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@mx_pack
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end
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def get_inspect
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"#@preference #@exchange"
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end
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def subclass_new_from_hash(args)
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if args.has_key? :preference and args.has_key? :exchange
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@preference = args[0][:preference].to_i
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@exchange = args[0][:exchange]
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else
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raise RRArgumentError, ":preference and :exchange fields are mandatory but missing"
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end
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end
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def subclass_new_from_string(str)
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@preference,@exchange = check_mx(str)
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end
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def subclass_new_from_binary(data,offset)
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@preference = data.unpack("@#{offset} n")[0]
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offset += 2
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@exchange,offset = dn_expand(data,offset)
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return offset
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end
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end # class MX
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end # class RR
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end # module DNS
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end # module Net
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