LDAP_PROTOCOL_ERROR
if ( rc == LDAP_PROTOCOL_ERROR && ldversion > LDAP_VERSION2 ) {
case LDAP_PROTOCOL_ERROR:
{ LDAP_PROTOCOL_ERROR, "Protocol error" },
{ LDAP_PROTOCOL_ERROR, 0 },
|| lderr != LDAP_PROTOCOL_ERROR ) {
case LDAP_PROTOCOL_ERROR:
case (LDAP_PROTOCOL_ERROR):