--- libaitmqtt/inc/Attic/mqttcli.h	2022/09/15 15:04:44	1.1
+++ libaitmqtt/inc/Attic/mqttcli.h	2022/09/16 04:18:17	1.1.2.3
@@ -0,0 +1,117 @@
+/*************************************************************************
+* (C) 2022 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
+*  by Michael Pounov <misho@elwix.org>
+*
+* $Author: misho $
+* $Id: mqttcli.h,v 1.1.2.3 2022/09/16 04:18:17 misho Exp $
+*
+**************************************************************************
+The ELWIX and AITNET software is distributed under the following
+terms:
+
+All of the documentation and software included in the ELWIX and AITNET
+Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
+
+Copyright 2004 - 2022
+	by Michael Pounov <misho@elwix.org>.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+This product includes software developed by Michael Pounov <misho@elwix.org>
+ELWIX - Embedded LightWeight unIX and its contributors.
+4. Neither the name of AITNET nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+*/
+#ifndef __MQTTCLI_H
+#define __MQTTCLI_H
+
+#ifdef API_CLIENT_SIDE
+/* MQTT client structure */
+
+typedef struct {
+	int		sock;
+	unsigned short	timeout;
+	mqtt_msg_t	*buf;
+} mqtt_cli_t;
+
+
+/*
+ * mqtt_cli_Open() - Open client connection to MQTT broker
+ *
+ * @addr = brokers address
+ * @timeout = timeout
+ * return: NULL error or !=NULL connected to broker
+ */
+mqtt_cli_t *mqtt_cli_Open(struct sockaddr *addr, unsigned short timeout);
+/*
+ * mqtt_cli_Close() - Close client connection
+ *
+ * @cli = connected client
+ * return: -1 error or 0 disconnected client and freed all resources
+ */
+int mqtt_cli_Close(mqtt_cli_t ** __restrict cli);
+
+/*
+ * mqtt_cli_Subscribe() - Subscribe to broker
+ *
+ * @cli = connected client
+ * @Topics = Topics for subscribes
+ * @msgID = Message ID
+ * return: NULL error or !=NULL allocated array with subscribed QoS responses, 
+ * 	must be e_free() result!
+ */
+unsigned char *mqtt_cli_Subscribe(mqtt_cli_t * __restrict cli, 
+		mqtt_subscr_t * __restrict Topics, unsigned short msgID);
+/*
+ * mqtt_cli_Unsubscribe() - Unsubscribe from broker
+ *
+ * @cli = connected client
+ * @Topics = Topics for unsubscribes
+ * @msgID = Message ID
+ * @Dup = Duplicated request
+ * @QoS = Message QoS
+ * return: -1 error or 0 ok
+ */
+int mqtt_cli_Unsubscribe(mqtt_cli_t * __restrict cli, 
+		mqtt_subscr_t * __restrict Topics, unsigned short msgID, 
+		unsigned char Dup, unsigned char QoS);
+/*
+ * mqtt_cli_Publish() - Publish message to broker
+ *
+ * @cli = connected client
+ * @msgID = Message ID
+ * @Dup = Duplicated request
+ * @QoS = Message QoS
+ * @Retain = Retain message
+ * @csTopic = Topic
+ * @pData = Data
+ * @datLen = Data length
+ * return: -1 error or > -1 sended bytes
+ */
+int mqtt_cli_Publish(mqtt_cli_t * __restrict cli, unsigned short msgID, 
+		unsigned char Dup, unsigned char QoS, unsigned char Retain, 
+		const char *csTopic, const void *pData, int datLen);
+#endif
+
+#endif