Connection failure on some cases

[xhzzhang]

Hi, thanks for your great project, but I tested and found that fail to connect mNetAssist.deb or TcpUdp.exe, but success to connect server program was implement enet.

client code

`#include
#define ENET_DEBUG
#include <enet/enet.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

using namespace std;

void run()
{
ENetHost * client;
client = enet_host_create (NULL /* create a client host /,
1 / only allow 1 outgoing connection /,
2 / allow up 2 channels to be used, 0 and 1 /,
0 / assume any amount of incoming bandwidth /,
0 / assume any amount of outgoing bandwidth */);
if (client == NULL)
{
fprintf (stderr,
"An error occurred while trying to create an ENet client host.\n");
exit (EXIT_FAILURE);
}

ENetAddress address;
ENetEvent event;
ENetPeer *peer;
/* Connect to some.server.net:1234. */
enet_address_set_host (& address, "172.16.33.189");
address.port = 12345;
/* Initiate the connection, allocating the two channels 0 and 1. */
peer = enet_host_connect (client, & address, 2, 0);    
if (peer == NULL)
{
   fprintf (stderr, 
			"No available peers for initiating an ENet connection.\n");
   return ;
}
ENetPacket * packet = enet_packet_create ("packet", 
										  strlen ("packet") + 1, 
										  ENET_PACKET_FLAG_RELIABLE);
/* Extend the packet so and append the string "foo", so it now */
/* contains "packetfoo\0"                                      */
enet_packet_resize (packet, strlen ("packetfoo") + 1);
strcpy ((char*)(& packet -> data [strlen ("packet")]), "foo");

/* 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)
{
	printf ("Connection to some.server.net:1234 succeeded.");
	/* Create a reliable packet of size 7 containing "packet\0" */
	/* Send the packet to the peer over channel id 0. */
	/* One could also broadcast the packet by         */
	/* enet_host_broadcast (host, 0, packet);         */
	enet_peer_send (peer, 0, packet);
	/* One could just use enet_host_service() instead. */
	enet_host_flush (client);
	event.peer -> data = new char[10];
	strcpy ((char*)(event.peer -> data), "foo2");
}
else
{
	enet_peer_reset (peer);
	printf ("Connection to some.server.net:1234 failed.");
	return ;
}
char msg[200] = {0};
/* Wait up to 5 seconds for the connection attempt to succeed. */
while (enet_host_service (client, & event, 5000) >= 0)
{
    switch (event.type)
    {
    case ENET_EVENT_TYPE_RECEIVE:
        printf ("From %s,%u[len=%u]: %s\n",
                event.peer -> data,
                event.channelID,
                event.packet -> dataLength,
                event.packet -> data);
        /* Clean up the packet now that we're done using it. */
        //enet_packet_destroy (event.packet);
   
        break;
       
    case ENET_EVENT_TYPE_DISCONNECT:
        printf ("%s disconnected.\n", event.peer -> data);
        /* Reset the peer's client information. */
        event.peer -> data = NULL;
    }
	/************* 
	// enet应该放在单独的线程里跑,scanf阻塞后会,影响enet_host_service发送心跳
	// 心跳1s一次,如果5s内没有心跳,服务端会提示连接断开
	scanf("%s",msg);
	enet_packet_resize (packet, strlen (msg) + 1);
	strcpy ((char*)( packet -> data ), msg);
	enet_peer_send (peer, 0, packet);
	enet_host_flush (client);*/
}

}

int main()
{
if (enet_initialize () != 0)
{
fprintf (stderr, "An error occurred while initializing ENet.\n");
return EXIT_FAILURE;
}
run();

return 0;

}`

Hope someone can give me some advice, thanks.