 more data.</p>

<p>Fatal errors that may occur are <b>SSL_ERROR_SYSCALL</b> and <b>SSL_ERROR_SSL</b>. These indicate that the stream is no longer usable. For example, this could be because the stream has been reset by the peer, or because the underlying connection has failed. You can consult the OpenSSL error stack for further details (for example by calling <a href="../man3/ERR_print_errors.html">ERR_print_errors(3)</a> to print out details of errors that have occurred). You can also consult the return va