mirror of
https://github.com/eclipse/paho.mqtt-sn.embedded-c.git
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95 lines
2.5 KiB
C
95 lines
2.5 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 "transport.h"
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int main(int argc, char** argv)
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{
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int rc = 0;
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int mysock;
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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 = 0;
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int retained = 0;
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short packetid = 0;
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// char *topicname = "a long topic name";
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char *host = "127.0.0.1";
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int port = 1883;
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MQTTSNPacket_connectData options = MQTTSNPacket_connectData_initializer;
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mysock = transport_open();
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if(mysock < 0)
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return mysock;
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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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port = atoi(argv[2]);
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printf("Sending to hostname %s port %d\n", host, port);
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options.clientID.cstring = "myclientid";
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len = MQTTSNSerialize_connect(buf, buflen, &options);
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rc = transport_sendPacketBuffer(host, port, buf, len);
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/* wait for connack */
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if (MQTTSNPacket_read(buf, buflen, transport_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, dup, qos, retained, packetid,
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topic, payload, payloadlen);
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rc = transport_sendPacketBuffer(host, port, buf, len);
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printf("rc %d from send packet for publish length %d\n", rc, len);
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exit:
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transport_close();
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return 0;
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}
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