NAME

       dnsjit.core.object.dns.label - Container of a DNS label

DESCRIPTION

       The  object  that describes a DNS label.  To extract a domain name label first check that have_dn is set,
       then use offset + 1 to indicate where in the payload the label start and length for how many  bytes  long
       it is.

   Attributes
       is_end

       have_length
              Set if there is a length.

       have_offset
              Set if there is an offset.

       have_extension_bits
              Set if there is extension bits.

       have_dn
              Set if the label contained a domain name.

       extension_bits
              The extension bits.

       length The length of the domain name.

       offset If  have_dn  is  set  then  this  contains the offset within the payload to where this label start
              otherwise it contains the offset to another label.

   Functions
       Label.new(size)
              Create a new array of labels.

       Label.tostring(dns, labels, num_labels, offset_labels)
              Returns labels as a string and an offset to the next label.  The string may be nil  if  the  first
              label was an offset.  The offset may be nil if the last label was an extension bits or end marker.

       Label.tooffstr(dns, labels, num_labels, offset_labels)
              Returns  labels  as  a  string which also includes a textual notation of the offset in the form of
              <offset>label.

SEE ALSO

       dnsjit.core.object.dns(3)

AUTHORS and CONTRIBUTORS

       Jerry Lundström (DNS-OARC), Tomáš Křížek (CZ.NIC), Petr Špaček (ISC)

       Maintained by DNS-OARC

              https://www.dns-oarc.net/

BUGS

       For issues and feature requests please use:

              https://github.com/DNS-OARC/dnsjit/issues

       For question and help please use:

              admin@dns-oarc.net

dnsjit                                                1.3.0                      dnsjit.core.object.dns.label(3)