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Contents
module Net # :nodoc:
module DNS
class RR
#
# = Canonical Name Record (CNAME)
#
# Class for DNS CNAME resource records.
#
# A CNAME record maps an alias or nickname to the real or Canonical name
# which may lie outside the current zone.
# Canonical means expected or real name.
#
class CNAME < RR
# Gets the canonical name value.
#
# Returns a String.
def cname
@cname
end
# Gets the standardized value for this record,
# represented by the value of <tt>cname</tt>.
#
# Returns a String.
def value
cname.to_s
end
private
def subclass_new_from_hash(options)
if options.has_key?(:cname)
@cname = check_name(options[:cname])
else
raise ArgumentError, ":cname field is mandatory"
end
end
def subclass_new_from_string(str)
@cname = check_name(str)
end
def subclass_new_from_binary(data, offset)
@cname, offset = dn_expand(data, offset)
offset
end
def set_type
@type = Net::DNS::RR::Types.new("CNAME")
end
def get_inspect
value
end
def check_name(input)
name = input.to_s
unless name =~ /(\w\.?)+\s*$/ and name =~ /[a-zA-Z]/
raise ArgumentError, "Invalid Canonical Name `#{name}'"
end
name
end
def build_pack
@cname_pack = pack_name(@cname)
@rdlength = @cname_pack.size
end
def get_data
@cname_pack
end
end
end
end
end
Version data entries
10 entries across 10 versions & 2 rubygems