pointer to memory maintained within B<s> and should not be free'd.
SSL_SESSION_set1_alpn_selected() sets the ALPN protocol for this session to the
-value in B<*alpn> which should be of length B<len> bytes. A copy of this value
-is taken.
+value in B<alpn> which should be of length B<len> bytes. A copy of the input
+value is made, and the caller retains ownership of the memory pointed to by
+B<alpn>.
=head1 SEE ALSO