=over 4
-=item 2
+=item Z<>2
This indicates that the I<ctx> and I<hctx> have been set and the session can
continue on those parameters. Additionally it indicates that the session
call I<cb> again with an enc argument of 1 to set the new ticket (see RFC5077
3.3 paragraph 2).
-=item 1
+=item Z<>1
This indicates that the I<ctx> and I<hctx> have been set and the session can
continue on those parameters.
-=item 0
+=item Z<>0
This indicates that it was not possible to set/retrieve a session ticket and
the SSL/TLS session will continue by by negiotationing a set of cryptographic