=head1 RETURN VALUES
BIO_socket() returns the socket number on success or B<INVALID_SOCKET>
-(-1) on error. When an error has occured, the OpenSSL error stack
+(-1) on error. When an error has occurred, the OpenSSL error stack
will hold the error data and errno has the system error.
BIO_connect() and BIO_listen() return 1 on success or 0 on error.
-When an error has occured, the OpenSSL error stack will hold the error
+When an error has occurred, the OpenSSL error stack will hold the error
data and errno has the system error.
BIO_accept_ex() returns the accepted socket on success or
-B<INVALID_SOCKET> (-1) on error. When an error has occured, the
+B<INVALID_SOCKET> (-1) on error. When an error has occurred, the
OpenSSL error stack will hold the error data and errno has the system
error.
=head1 SEE ALSO
L<BIO_ADDR(3)>
+
+=head1 COPYRIGHT
+
+Copyright 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