d class="itemcode"><a name="X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY"></a><code><b>X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY</b> = 20;</code></td>
</tr>
</table>
&nbsp;<table class="detail">
<tr class="list">
<td class="itemcode"><a name="X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE"></a><code><b>X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE</b> = 21;</code></td>
</tr>
</table>
&nbsp;<table class="detail">
<tr class="list">
<td class="itemcode"><a name="X509_V_ERR_CERT_CHAIN_TOO_LONG"></a><code><b>X509_V_