buffer B<buf>. If necessary, SSL_read() will negotiate a TLS/SSL session, if
not already explicitly performed by SSL_connect() or SSL_accept(). If the
peer requests a re-negotiation, it will be performed transparently during
-the SSL_read() operation. The behavior of SSL_read() depends on the
+the SSL_read() operation. The behaviour of SSL_read() depends on the
underlying BIO.
If the underlying BIO is B<blocking>, SSL_read() will only return, once the