 buffer is too small.</p>

<h1 id="NOTES">NOTES</h1>

<p>Except when <i>n</i> is 0, both BIO_snprintf() and BIO_vsnprintf() always terminate their output with <code>&#39;\0&#39;</code>. This includes cases where -1 is returned, such as when there is insufficient space to output the whole string.</p>

<h1 id="COPYRIGHT">COPYRIGHT</h1>

<p>Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.</p>

<p>Licensed under the Apache License 2.0 (the &quot;License&quot;). You may not use this file exc