[ENet-discuss] Cannot receive connection packet from client to server

[Ng Yao Kheng]

I am following the tutorial to create a client and server program. When Client connection to the server, the server should go to case ENET_EVENT_TYPE_CONNECT: and print A new client connected from %x:%u.\n"
 
But I do not receive the message....
 
Similairly, when clients send data to the server, the case ENET_EVENT_TYPE_RECEIVE: is not activated.
 
Do anyone know the reason based on the code below? Thanks a lot.
 
 
 
Server code 
 
#include <stdio.h>
#include <conio.h>
#include "enet/enet.h"
int main(int argc, char ** argv)
{
   //Initialize Enet
   if (enet_initialize () != 0)
   {
      fprintf (stderr, "An error occurred while initializing ENet.\n");
      return EXIT_FAILURE;
   }
 
   atexit (enet_deinitialize); //Deinitialize at exit 
   //Creating an ENet server
   ENetAddress address;
   ENetHost * server;
   address.host = ENET_HOST_ANY;
   address.port = 1234;
   server = enet_host_create (&address /* the address to bind the server host to */, 
                                          32 /* allow up to 32 clients and/or outgoing connections */,
                                          0 /* assume any amount of incoming bandwidth */,
                                          0 /* assume any amount of outgoing bandwidth */);
   if (server == NULL)
   {
      fprintf(stderr, "An error occurred while trying to create an ENet server host.\n");
      exit(EXIT_FAILURE);
   }
   else
   fprintf (stderr, "Server created\n");

   
   ENetEvent event; 

   while(1)
   {
      /* Wait up to 1000 milliseconds for an event. */
      if(enet_host_service (server, &event, 1000) > 0)
     {
     switch (event.type)
     {
     case ENET_EVENT_TYPE_CONNECT:
          printf ("A new client connected from %x:%u.\n", 
                    event.peer -> address.host, 
                    event.peer -> address.port);
          /* Store any relevant client information here. */
          event.peer -> data = "Client information";
          break;
 
     case ENET_EVENT_TYPE_RECEIVE:
          printf ("A packet of length %u containing %s was received from %s on channel %u.\n",
                    event.packet -> dataLength,
                    event.packet -> data,
                    event.peer -> data,
                    event.channelID);
 
          /* Clean up the packet now that we're done using it. */
          enet_packet_destroy (event.packet);
          break;

 
      case ENET_EVENT_TYPE_DISCONNECT:
          printf ("%s disconected.\n", event.peer -> data);
          /* Reset the peer's client information. */
         event.peer -> data = NULL;
      }
   }
   else
       printf("No events received\n");
  }

   return 0;
}
 
Client code 
 
#include <stdio.h>
#include <conio.h>
#include "enet/enet.h"
int main(void)
{
   if (enet_initialize () != 0)
   {
      fprintf (stderr, "An error occurred while initializing ENet.\n");
       return EXIT_FAILURE;
   }
   atexit (enet_deinitialize); //Deinitialize at exit
 
   ENetHost * client;
   client = enet_host_create (NULL /* create a client host */,
                                           1 /* only allow 1 outgoing connection */,
                                           57600 / 8 /* 56K modem with 56 Kbps downstream bandwidth */,
                                           14400 / 8 /* 56K modem with 14 Kbps upstream bandwidth */);
   if (client == NULL)
   {
      fprintf (stderr, "An error occurred while trying to create an ENet client host.\n");
      exit (EXIT_FAILURE);
   }
   else
   fprintf (stderr, "Client created.\n");
   ENetAddress address;
   ENetEvent event;
   ENetPeer *peer;
   /* Connect to some.server.net:1234. */
   enet_address_set_host (&address, "172.21.41.99");
   address.port = 1234;
   /* Initiate the connection, allocating the two channels 0 and 1. */
   peer = enet_host_connect (client, &address, 2); 

   if (peer == NULL)
   {
      fprintf (stderr, "No available peers for initiating an ENet connection.\n");
      exit (EXIT_FAILURE);
   }

   
   /* Wait up to 5 seconds for the connection attempt to succeed. */
   if (enet_host_service (client, & event, 5000) > 0 && event.type == ENET_EVENT_TYPE_CONNECT)
   {
      puts ("Connection to localhost:1234 succeeded.");
      /* Create a reliable packet of size 7 containing "packet\0" */
      ENetPacket * packet = enet_packet_create ("packet", 
      strlen ("packet") + 1, 
      ENET_PACKET_FLAG_RELIABLE);
     
     int temp = enet_peer_send (peer, 0, packet);
     if(temp == 0)
        printf("Send Successful\n");


   }
   else
   {
      enet_peer_reset (peer);
      puts ("Connection to localhost:1234 failed.");
   }

 
return 0;
 
 
}
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