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module Net # :nodoc:
module DNS
class RR
#
# = Name Server Record (NS)
#
# Class for DNS NS resource records.
#
class NS < RR
# Gets the name server value.
#
# Returns a String.
attr_reader :nsdname
# Gets the standardized value for this record,
# represented by the value of <tt>nsdname</tt>.
#
# Returns a String.
def value
nsdname.to_s
end
private
def subclass_new_from_hash(options)
if options.key?(:nsdname)
@nsdname = check_name(options[:nsdname])
else
raise ArgumentError, ":nsdname field is mandatory"
end
end
def subclass_new_from_string(str)
@nsdname = check_name(str)
end
def subclass_new_from_binary(data, offset)
@nsdname, offset = dn_expand(data, offset)
offset
end
def set_type
@type = Net::DNS::RR::Types.new("NS")
end
def get_inspect
value
end
def check_name(input)
name = input.to_s
unless name =~ /(\w\.?)+\s*$/ && name =~ /[a-zA-Z]/
raise ArgumentError, "Invalid Name Server `#{name}'"
end
name
end
def build_pack
@nsdname_pack = pack_name(@nsdname)
@rdlength = @nsdname_pack.size
end
def get_data
@nsdname_pack
end
end
end
end
end
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