DH_free() frees the B<DH> structure and its components. The values are
erased before the memory is returned to the system.
+If B<dh> is NULL nothing is done.
=head1 RETURN VALUES
If the allocation fails, DH_new() returns B<NULL> and sets an error
-code that can be obtained by L<ERR_get_error(3)|ERR_get_error(3)>. Otherwise it returns
+code that can be obtained by L<ERR_get_error(3)>. Otherwise it returns
a pointer to the newly allocated structure.
DH_free() returns no value.
=head1 SEE ALSO
-L<dh(3)|dh(3)>, L<err(3)|err(3)>,
-L<DH_generate_parameters(3)|DH_generate_parameters(3)>,
-L<DH_generate_key(3)|DH_generate_key(3)>
-
-=head1 HISTORY
-
-DH_new() and DH_free() are available in all versions of SSLeay and OpenSSL.
+L<dh(3)>, L<ERR_get_error(3)>,
+L<DH_generate_parameters(3)>,
+L<DH_generate_key(3)>
=cut