=head1 NAME
-BIO_push, BIO_pop, BIO_set_next - add and remove BIOs from a chain.
+BIO_push, BIO_pop, BIO_set_next - add and remove BIOs from a chain
=head1 SYNOPSIS
The BIO_set_next() function was added in OpenSSL version 1.1.0.
+=head1 COPYRIGHT
+
+Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
=cut