mirror of
https://github.com/eclipse/paho.mqtt-sn.embedded-c.git
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106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
/*******************************************************************************
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* Copyright (c) 2014 IBM Corp.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* and Eclipse Distribution License v1.0 which accompany this distribution.
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*
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* The Eclipse Public License is available at
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* http://www.eclipse.org/legal/epl-v10.html
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* and the Eclipse Distribution License is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* Contributors:
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* Ian Craggs - initial API and implementation and/or initial documentation
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* Sergio R. Caprile - clarifications and/or documentation extension
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*
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* Description:
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* Short topic name used to avoid registration process
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*******************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "MQTTSNPacket.h"
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#include "rfcomm.h"
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int main(int argc, char** argv)
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{
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unsigned char buf[200];
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int buflen = sizeof(buf);
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MQTTSN_topicid topic;
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unsigned char* payload = (unsigned char*)"mypayload";
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int payloadlen = strlen((char*)payload);
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int len = 0;
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int dup = 0;
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int qos = 1;
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int retained = 0;
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short packetid = 1;
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char *host = "";
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int channel = 1;
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MQTTSNPacket_connectData options = MQTTSNPacket_connectData_initializer;
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if (argc > 1)
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host = argv[1];
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if (argc > 2)
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channel = atoi(argv[2]);
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printf("Sending to address %s channel %d\n", host, channel);
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if (rfcomm_open(host, channel) < 0)
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{
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goto exit;
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}
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options.clientID.cstring = "myclientid";
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len = MQTTSNSerialize_connect(buf, buflen, &options);
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rfcomm_sendPacketBuffer(buf, len);
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/* wait for connack */
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if (MQTTSNPacket_read(buf, buflen, rfcomm_getdata) == MQTTSN_CONNACK)
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{
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int connack_rc = -1;
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if (MQTTSNDeserialize_connack(&connack_rc, buf, buflen) != 1 || connack_rc != 0)
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{
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printf("Unable to connect, return code %d\n", connack_rc);
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goto exit;
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}
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else
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printf("connected rc %d\n", connack_rc);
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}
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else
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goto exit;
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/* publish with short name */
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topic.type = MQTTSN_TOPIC_TYPE_SHORT;
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memcpy(topic.data.short_name, "tt", 2);
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len = MQTTSNSerialize_publish(buf, buflen - len, dup, qos, retained, packetid,
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topic, payload, payloadlen);
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rfcomm_sendPacketBuffer(buf, len);
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/* wait for puback */
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if (MQTTSNPacket_read(buf, buflen, rfcomm_getdata) == MQTTSN_PUBACK)
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{
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unsigned short packet_id, topic_id;
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unsigned char returncode;
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if (MQTTSNDeserialize_puback(&topic_id, &packet_id, &returncode, buf, buflen) != 1 || returncode != MQTTSN_RC_ACCEPTED)
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printf("Unable to publish, return code %d\n", returncode);
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else
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printf("puback received, id %d\n", packet_id);
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}
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else
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goto exit;
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len = MQTTSNSerialize_disconnect(buf, buflen, 0);
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rfcomm_sendPacketBuffer(buf, len);
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exit:
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rfcomm_close();
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return 0;
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}
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