static enum_func_status
php_mysqlnd_auth_response_read(MYSQLND_CONN_DATA * conn, void * _packet)
{
	register MYSQLND_PACKET_AUTH_RESPONSE * packet= (MYSQLND_PACKET_AUTH_RESPONSE *) _packet;
	MYSQLND_ERROR_INFO * error_info = conn->error_info;
	MYSQLND_PFC * pfc = conn->protocol_frame_codec;
	MYSQLND_VIO * vio = conn->vio;
	MYSQLND_STATS * stats = conn->stats;
	MYSQLND_CONNECTION_STATE * connection_state = &conn->state;
	zend_uchar local_buf[AUTH_RESP_BUFFER_SIZE];
	size_t buf_len = pfc->cmd_buffer.buffer? pfc->cmd_buffer.length: AUTH_RESP_BUFFER_SIZE;
	zend_uchar *buf = pfc->cmd_buffer.buffer? (zend_uchar *) pfc->cmd_buffer.buffer : local_buf;
	const zend_uchar * p = buf;
	const zend_uchar * const begin = buf;

	DBG_ENTER("php_mysqlnd_auth_response_read");

	/* leave space for terminating safety \0 */
	buf_len--;
	if (FAIL == mysqlnd_read_packet_header_and_body(&(packet->header), pfc, vio, stats, error_info, connection_state, buf, buf_len, "OK", PROT_OK_PACKET)) {
		DBG_RETURN(FAIL);
	}
	BAIL_IF_NO_MORE_DATA;

	/*
	  zero-terminate the buffer for safety. We are sure there is place for the \0
	  because buf_len is -1 the size of the buffer pointed
	*/
	buf[packet->header.size] = '\0';

	/* Should be always 0x0 or ERROR_MARKER for error */
	packet->response_code = uint1korr(p);
	p++;
	BAIL_IF_NO_MORE_DATA;

	if (ERROR_MARKER == packet->response_code) {
		php_mysqlnd_read_error_from_line(p, packet->header.size - 1,
										 packet->error, sizeof(packet->error),
										 &packet->error_no, packet->sqlstate
										);
		DBG_RETURN(PASS);
	}
	if (0xFE == packet->response_code) {
		/* Authentication Switch Response */
		if (packet->header.size > (size_t) (p - buf)) {
			packet->new_auth_protocol = mnd_pestrdup((char *)p, FALSE);
			packet->new_auth_protocol_len = strlen(packet->new_auth_protocol);
			p+= packet->new_auth_protocol_len + 1; /* +1 for the \0 */

			packet->new_auth_protocol_data_len = packet->header.size - (size_t) (p - buf);
			if (packet->new_auth_protocol_data_len) {
				packet->new_auth_protocol_data = mnd_emalloc(packet->new_auth_protocol_data_len);
				memcpy(packet->new_auth_protocol_data, p, packet->new_auth_protocol_data_len);
			}
			DBG_INF_FMT("The server requested switching auth plugin to : %s", packet->new_auth_protocol);
			DBG_INF_FMT("Server salt : [%d][%.*s]", packet->new_auth_protocol_data_len, packet->new_auth_protocol_data_len, packet->new_auth_protocol_data);
		}
	} else {
		zend_ulong net_len;
		/* Everything was fine! */
		packet->affected_rows  = php_mysqlnd_net_field_length_ll(&p);
		BAIL_IF_NO_MORE_DATA;

		packet->last_insert_id = php_mysqlnd_net_field_length_ll(&p);
		BAIL_IF_NO_MORE_DATA;

		packet->server_status = uint2korr(p);
		p+= 2;
		BAIL_IF_NO_MORE_DATA;

		packet->warning_count = uint2korr(p);
		p+= 2;
		BAIL_IF_NO_MORE_DATA;

		/* There is a message */
		if (packet->header.size > (size_t) (p - buf) && (net_len = php_mysqlnd_net_field_length(&p))) {
			packet->message_len = MIN(net_len, buf_len - (p - begin));
			packet->message = mnd_pestrndup((char *)p, packet->message_len, FALSE);
		} else {
			packet->message = NULL;
			packet->message_len = 0;
		}

		DBG_INF_FMT("OK packet: aff_rows=%lld last_ins_id=%pd server_status=%u warnings=%u",
					packet->affected_rows, packet->last_insert_id, packet->server_status,
					packet->warning_count);
	}

	DBG_RETURN(PASS);
premature_end:
	DBG_ERR_FMT("OK packet %d bytes shorter than expected", p - begin - packet->header.size);
	php_error_docref(NULL, E_WARNING, "AUTH_RESPONSE packet "MYSQLND_SZ_T_SPEC" bytes shorter than expected",
					 p - begin - packet->header.size);
	DBG_RETURN(FAIL);
Unknown