#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#if !defined(_WIN32)
#include <unistd.h>
#else
#include <windows.h>
#endif
 
#define ADDRESS     "tcp://mqtt.eclipse.org:1883"
#define CLIENTID    "ExampleClientPub"
#define TOPIC       "MQTT Examples"
#define PAYLOAD     "Hello World!"
#define QOS         1
#define TIMEOUT     10000L
 
 
{
    printf("Message with token value %d delivery confirmed\n", dt);
    deliveredtoken = dt;
}
 
{
    printf("Message arrived\n");
    printf("     topic: %s\n", topicName);
    return 1;
}
 
void connlost(void *context, char *cause)
{
    printf("\nConnection lost\n");
    printf("     cause: %s\n", cause);
}
 
int main(int argc, char* argv[])
{
    int rc;
 
    {
        printf("Failed to create client, return code %d\n", rc);
        rc = EXIT_FAILURE;
        goto exit;
    }
 
    {
        printf("Failed to set callbacks, return code %d\n", rc);
        rc = EXIT_FAILURE;
        goto destroy_exit;
    }
 
    {
        printf("Failed to connect, return code %d\n", rc);
        rc = EXIT_FAILURE;
        goto destroy_exit;
    }
 
    deliveredtoken = 0;
    {
        printf("Failed to publish message, return code %d\n", rc);
        rc = EXIT_FAILURE;
    }
    else
    {
        printf("Waiting for publication of %s\n"
            "on topic %s for client with ClientID: %s\n",
            PAYLOAD, TOPIC, CLIENTID);
        while (deliveredtoken != token)
        {
                        #if defined(_WIN32)
                                Sleep(100);
                        #else
                                usleep(10000L);
                        #endif
        }
    }
 
    {
        printf("Failed to disconnect, return code %d\n", rc);
        rc = EXIT_FAILURE;
    }
 
destroy_exit:
 
exit:
    return rc;
}