DarkNet sending old packets? - GameCreators Forum

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Interplanetary Funk

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Joined: 19th Apr 2010

Location: Ipswich, United Kingdom

Posted: 22nd Apr 2010 23:32

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I'm having a problem with DarkNet, I've written this simple LAN messenger but when I run it, it will only show the first thing i entered, just the user name, or nothing, it also crashes when i run the release build. any help would be greatly appreciated.
(heres my source btw)

#include <MikeNet.h>
#include <DarkGDK.h>
#include <cstring>

void SendPacket(_int64 packet, char* UserName, char* Text, int Red, int Blue, int Green);
void RecievePacket(_int64 packet);

void DarkGDK(void)
{
	dbSetDisplayMode(600,250,32);

int Start = mnStart(3,0);
	
	if(Start==0)
	{
		mnSetLocal(1, NULL, 23009, NULL, 23010);
		mnStartBroadcast(1, 23010, true, true);
		_int64 packet = mnCreatePacket();

char* Text;

dbInk(dbRGB(255,255,255),dbRGB(0,0,0));

while(LoopGDK())
		{
			
			Text =  dbInput();

if(dbReturnKey())
				SendPacket(packet, "James", Text, 150, 160, 250);

delete[] Text;

RecievePacket(packet);

if(dbEscapeKey())
				break;
		}
	}
	mnFinish(-1);
	return;
}
void SendPacket(_int64 packet, char* UserName, char* Text, int Red, int Blue, int Green)
{
		mnAddInt(packet, Red);
		mnAddInt(packet, Blue);
		mnAddInt(packet, Green);

mnAddStringC(packet, UserName, 0, true);
		mnAddStringC(packet, Text, 0, true);

mnSendUDP(1, packet, NULL, false, true);
}
void RecievePacket(_int64 packet)
{
		int RecieveNew=mnRecvUDP(1, packet, NULL, NULL);
		if(RecieveNew==1)
		{
			int		Red, Blue, Green;
			char*	str;

//Sets Text Colour
			Red		= mnGetUnsignedInt(packet);
			Blue	= mnGetUnsignedInt(packet);
			Green	= mnGetUnsignedInt(packet);

//Set Text Colour
			dbInk(dbRGB(Red,Green,Blue), dbRGB(0,0,0));

//Display User Name
			strcpy(str, "<");
			strcat(str, mnGetStringC(packet, 0, true));
			strcat(str,"> ");
			//Display Text
			strcat (str, mnGetStringC(packet, 0, true));
			dbPrint(str);

delete[] str;

//Reset Text Colour
			dbInk(dbRGB(255,255,255), dbRGB(0,0,0));
		}
}

+ Code Snippet

#include <MikeNet.h>
#include <DarkGDK.h>
#include <cstring>

void SendPacket(_int64 packet, char* UserName, char* Text, int Red, int Blue, int Green);
void RecievePacket(_int64 packet);

void DarkGDK(void)
{
	dbSetDisplayMode(600,250,32);

	int Start = mnStart(3,0);
	
	if(Start==0)
	{
		mnSetLocal(1, NULL, 23009, NULL, 23010);
		mnStartBroadcast(1, 23010, true, true);
		_int64 packet = mnCreatePacket();

		char* Text;

		dbInk(dbRGB(255,255,255),dbRGB(0,0,0));

		while(LoopGDK())
		{
			
			Text =  dbInput();

			if(dbReturnKey())
				SendPacket(packet, "James", Text, 150, 160, 250);

			delete[] Text;

			RecievePacket(packet);

			if(dbEscapeKey())
				break;
		}
	}
	mnFinish(-1);
	return;
}
void SendPacket(_int64 packet, char* UserName, char* Text, int Red, int Blue, int Green)
{
		mnAddInt(packet, Red);
		mnAddInt(packet, Blue);
		mnAddInt(packet, Green);

		mnAddStringC(packet, UserName, 0, true);
		mnAddStringC(packet, Text, 0, true);

		mnSendUDP(1, packet, NULL, false, true);
}
void RecievePacket(_int64 packet)
{
		int RecieveNew=mnRecvUDP(1, packet, NULL, NULL);
		if(RecieveNew==1)
		{
			int		Red, Blue, Green;
			char*	str;

			//Sets Text Colour
			Red		= mnGetUnsignedInt(packet);
			Blue	= mnGetUnsignedInt(packet);
			Green	= mnGetUnsignedInt(packet);

			//Set Text Colour
			dbInk(dbRGB(Red,Green,Blue), dbRGB(0,0,0));

			//Display User Name
			strcpy(str, "<");
			strcat(str, mnGetStringC(packet, 0, true));
			strcat(str,"> ");
			//Display Text
			strcat (str, mnGetStringC(packet, 0, true));
			dbPrint(str);

			delete[] str;

			//Reset Text Colour
			dbInk(dbRGB(255,255,255), dbRGB(0,0,0));
		}
}

this is probably down to my poor coding and lack of experience with networking and DarkNet/DarkGDK, but I would very much like to fix it so I can continue my hopes of programming =) (especially game programming =D)

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Interplanetary Funk

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Joined: 19th Apr 2010

Location: Ipswich, United Kingdom

Posted: 23rd Apr 2010 03:50

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Also, another question about DarkNet which I cant figure out, I want to enumerate the number of clients connected and then loop through them receiving the packets being sent, any ideas on how I would do this??

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Cuddle Bunniezzz 12

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Joined: 14th Jan 2009

Location: Buffalo, NY

Posted: 23rd Apr 2010 04:21

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I'd suggest creating a Server version of this and a client version of this.

Have the clients send their messages to the Server, and when a new message is received from one client, send it to the other client.

In this case that you have above, are both users of the chat program servers?

http://www.darkgdk.us/ <- You can now submit pages, upload images, yet were lacking content. We need your help!

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Interplanetary Funk

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Location: Ipswich, United Kingdom

Posted: 23rd Apr 2010 04:27

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Well in the one above, I'm literally just sending packets to everyone and receiving them from everyone, I have already started to rewrite it with a server and client program, though I would like the client to auto find the server on the LAN, which would still need broadcasting for I think (correct me if I'm wrong though). Also, I thought it would be nice for the user to simply be able to use one program for the server and client rather than needing both. But I'll obviously get that done when I manage to figure out how to program effectively with DarkNet.

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Michael P

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Joined: 6th Mar 2006

Location: London (UK)

Posted: 23rd Apr 2010 12:26

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Your problem is here:

+ Code Snippet

char*	str;

			//Sets Text Colour
			Red		= mnGetUnsignedInt(packet);
			Blue	= mnGetUnsignedInt(packet);
			Green	= mnGetUnsignedInt(packet);

			//Set Text Colour
			dbInk(dbRGB(Red,Green,Blue), dbRGB(0,0,0));

			//Display User Name
			strcpy(str, "<");
			strcat(str, mnGetStringC(packet, 0, true));
			strcat(str,"> ");
			//Display Text
			strcat (str, mnGetStringC(packet, 0, true));
			dbPrint(str);

			delete[] str;

You should learn how to use C strings and pointers before using them. You are copying into an unallocated pointer, which is criminal!

mnGetStringC returns a newly allocated string so you need to deallocate it with delete[]. Also if(RecieveNew==1) should be if(ReceiveNew>0). You should avoid using broadcasting for anything other than server finding as it has a big overhead on network performance.

DarkNet - multiplayer plugin

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Hassan

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Posted: 23rd Apr 2010 12:42

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i believe
char* str;
should be
char* str = new char[256];
over there, as it's pointing to nothing at the moment so you will get an unhandled exception, 256 can be any number, depends on what you need

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Interplanetary Funk

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Posted: 23rd Apr 2010 23:07

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Okidoke, thank you, I now have:

//Includes, DUH!
#include <MikeNet.h>
#include <DarkGDK.h>
#include <cstring>

//Function Prototypes
bool	NotHosting(char* sIP);
int		RefreshClient();
int		RefreshServer();

//Global Variables
bool IsHost;
long long int Packet;
char* ServerIP = new char[50];
char* Message = new char[512];
char* cUsername = new char[256];
char* Username = new char[256];

void DarkGDK()
{
	//Initialize window
	dbInk(dbRGB(0,0,0), dbRGB(245,245,245));
	dbCLS(dbRGB(245,245,245));

//Starts MikeNet
	int lanStart = mnStart(2, 0);
	if(lanStart==0)
	{
		dbPrint("Network Initialized");

//Creates a packet
		Packet = mnCreatePacket();

//Asks for username
		dbPrint("Please enter your preferred username:");
		Username = dbInput();

//Checks if there's already a host on the network
		if(NotHosting(ServerIP))
		{
			//Attempts to connect to host
			int Connected = mnConnect(1, ServerIP, 21009, ServerIP, 21010, 5, true);

//Checks To see if connection was established
			if(Connected==0)
			{
				//Display Host Information
				dbPrint("Connected to host at:");
				dbPrint(ServerIP);
				
				//Client loop
				while(true)
				{
					//Refreshes the client
					RefreshClient();

//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not connect to server");
				dbWaitKey();
			}
		}
		else
		{
			//Trys to start a server
			dbPrint("Attempting to start server");
			int ServerStarted = mnStartServer(1, 50, 50, UM_CATCH_ALL_NO);

//Checks if server started
			if(ServerStarted==0)
			{
				//Display Host Information
				ServerIP = mnGetLocalIPUDP(1);
				dbPrint("Hosting at local address:");
				dbPrint(ServerIP);

//Server loop
				while(true)
				{
					//Refreshes the server
					RefreshServer();

//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not create server");
				dbWaitKey();
			}
		}

delete[] ServerIP;
		delete[] Username;

//Closes MikeNet
		int lanFinish = mnFinish(-1);
		if(lanFinish==0)
		{
			dbPrint("MikeNet Deinitialized");
		}
		else
		{
			dbPrint("MikeNet Deinitialization Failed");
			dbWaitKey();
		}
	}
	else
	{
		dbPrint("MikeNet Initialization Failed");
		dbWaitKey();
	}

dbWaitKey();
	delete[] ServerIP;
	delete[] Username;
	return;
}
bool NotHosting(char* sIP)
{
	//Turns Broadcasting on
	int BroadcastOn = mnStartBroadcast(0, 23010, false, true);
	//Checks if broadcasting is on
	if(BroadcastOn==0)
	{
		//Checks for any new packets
		int RecievedPacket = mnRecvUDP(0, Packet, NULL, NULL);
		if(RecievedPacket)
		{
			//Gets IP recieved in packet
			sIP = mnGetStringC(Packet, 0, true);

//Clears packet
			mnClearPacket(Packet);
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{
		//Display error message
		dbPrint("Broadcast state failed");
		dbWaitKey();
		return false;
	}
}
int RefreshServer()
{
	char* str = new char[600];
	//Checks for new Packets
	int Recieved = mnRecvUDP(1, Packet, NULL, NULL);
	if(Recieved>0)
	{
		//Gets text colour
		int Red		= mnGetInt(Packet);
		int Green	= mnGetInt(Packet);
		int Blue	= mnGetInt(Packet);
		cUsername	= mnGetStringC(Packet, 0, true);
		Message		= mnGetStringC(Packet, 0, true);

//Sets Text Colour
		dbInk(dbRGB(Red,Green,Blue), dbRGB(245,245,245));

//Display User Name
		strcpy(str, "<");
		strcat(str, cUsername);
		strcat(str,"> ");
		dbPrint(str);

//Displays message
		dbPrint(Message);

//Cleanup
		delete[] str;
		delete[] cUsername;
		delete[] Message;

//Forward the packet
		mnSendUDPAll(1, Packet, true, false, 0);
	}

//Gets host messages
	Message = dbInput();
	if(dbReturnKey())
	{
		//Clears the packet
		mnClearPacket(Packet);

//Adds colour information
		mnAddInt(Packet, 170);
		mnAddInt(Packet, 0);
		mnAddInt(Packet, 0);

//Add username and message
		mnAddStringC(Packet, Username, 0, true);
		mnAddStringC(Packet, Message, 0, true);
		
		//Sends the message
		mnSendUDPAll(1, Packet, true, false, 0);
	}
	delete[] Message;

return 0;
}
int	RefreshClient()
{
	return 0;
}

+ Code Snippet

//Includes, DUH!
#include <MikeNet.h>
#include <DarkGDK.h>
#include <cstring>

//Function Prototypes
bool	NotHosting(char* sIP);
int		RefreshClient();
int		RefreshServer();

//Global Variables
bool IsHost;
long long int Packet;
char* ServerIP = new char[50];
char* Message = new char[512];
char* cUsername = new char[256];
char* Username = new char[256];

void DarkGDK()
{
	//Initialize window
	dbInk(dbRGB(0,0,0), dbRGB(245,245,245));
	dbCLS(dbRGB(245,245,245));

	//Starts MikeNet
	int lanStart = mnStart(2, 0);
	if(lanStart==0)
	{
		dbPrint("Network Initialized");

		//Creates a packet
		Packet = mnCreatePacket();

		//Asks for username
		dbPrint("Please enter your preferred username:");
		Username = dbInput();

		//Checks if there's already a host on the network
		if(NotHosting(ServerIP))
		{
			//Attempts to connect to host
			int Connected = mnConnect(1, ServerIP, 21009, ServerIP, 21010, 5, true);

			//Checks To see if connection was established
			if(Connected==0)
			{
				//Display Host Information
				dbPrint("Connected to host at:");
				dbPrint(ServerIP);
				
				//Client loop
				while(true)
				{
					//Refreshes the client
					RefreshClient();

					//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not connect to server");
				dbWaitKey();
			}
		}
		else
		{
			//Trys to start a server
			dbPrint("Attempting to start server");
			int ServerStarted = mnStartServer(1, 50, 50, UM_CATCH_ALL_NO);

			//Checks if server started
			if(ServerStarted==0)
			{
				//Display Host Information
				ServerIP = mnGetLocalIPUDP(1);
				dbPrint("Hosting at local address:");
				dbPrint(ServerIP);

				//Server loop
				while(true)
				{
					//Refreshes the server
					RefreshServer();

					//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not create server");
				dbWaitKey();
			}
		}

		delete[] ServerIP;
		delete[] Username;

		//Closes MikeNet
		int lanFinish = mnFinish(-1);
		if(lanFinish==0)
		{
			dbPrint("MikeNet Deinitialized");
		}
		else
		{
			dbPrint("MikeNet Deinitialization Failed");
			dbWaitKey();
		}
	}
	else
	{
		dbPrint("MikeNet Initialization Failed");
		dbWaitKey();
	}

	dbWaitKey();
	delete[] ServerIP;
	delete[] Username;
	return;
}
bool NotHosting(char* sIP)
{
	//Turns Broadcasting on
	int BroadcastOn = mnStartBroadcast(0, 23010, false, true);
	//Checks if broadcasting is on
	if(BroadcastOn==0)
	{
		//Checks for any new packets
		int RecievedPacket = mnRecvUDP(0, Packet, NULL, NULL);
		if(RecievedPacket)
		{
			//Gets IP recieved in packet
			sIP = mnGetStringC(Packet, 0, true);

			//Clears packet
			mnClearPacket(Packet);
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{
		//Display error message
		dbPrint("Broadcast state failed");
		dbWaitKey();
		return false;
	}
}
int RefreshServer()
{
	char* str = new char[600];
	//Checks for new Packets
	int Recieved = mnRecvUDP(1, Packet, NULL, NULL);
	if(Recieved>0)
	{
		//Gets text colour
		int Red		= mnGetInt(Packet);
		int Green	= mnGetInt(Packet);
		int Blue	= mnGetInt(Packet);
		cUsername	= mnGetStringC(Packet, 0, true);
		Message		= mnGetStringC(Packet, 0, true);

		//Sets Text Colour
		dbInk(dbRGB(Red,Green,Blue), dbRGB(245,245,245));

		//Display User Name
		strcpy(str, "<");
		strcat(str, cUsername);
		strcat(str,"> ");
		dbPrint(str);

		//Displays message
		dbPrint(Message);

		//Cleanup
		delete[] str;
		delete[] cUsername;
		delete[] Message;

		//Forward the packet
		mnSendUDPAll(1, Packet, true, false, 0);
	}

	//Gets host messages
	Message = dbInput();
	if(dbReturnKey())
	{
		//Clears the packet
		mnClearPacket(Packet);

		//Adds colour information
		mnAddInt(Packet, 170);
		mnAddInt(Packet, 0);
		mnAddInt(Packet, 0);

		//Add username and message
		mnAddStringC(Packet, Username, 0, true);
		mnAddStringC(Packet, Message, 0, true);
		
		//Sends the message
		mnSendUDPAll(1, Packet, true, false, 0);
	}
	delete[] Message;

	return 0;
}
int	RefreshClient()
{
	return 0;
}

however, when trying to receive UDP files when acting as a server, i get an error message from DarkNet telling me that there is an invalid client ID. The documentation clearly states that when UDP mode is set to UM_CATCH_ALL that the client id is ignored and can be set to anything. This is a problem as I want to get data from ALL clients and forward it straight away to the rest, and I thought this would be much easier than creating a client struct and looping through it to send data, but that doesn't seem to be the case.

(Sreenshot of error attached)

when I click no to do I want to exit, I receive the exact same error when I try to close the program.

any help??

(sorry to be such a pest, but I am new to this whole networking thing and have only really been programming C++ for about a month or 2)

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Michael P

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Joined: 6th Mar 2006

Location: London (UK)

Posted: 24th Apr 2010 22:00

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In server state you need to set the clientID to the ID of the client you want to receive from.

Quote: "In client state UDP modes UM_CATCH_ALL and UM_CATCH_ALL_NO this parameter should be ignored and can be set to anything."

DarkNet - multiplayer plugin

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Interplanetary Funk

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Joined: 19th Apr 2010

Location: Ipswich, United Kingdom

Posted: 24th Apr 2010 22:18 Edited at: 24th Apr 2010 22:40

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Ah, okay, sorry, my bad

, is there anyway easy way to loop through all connected clients and receive messages or will I have to create a struct that stores the information in an array or something??

Edit:
I've now written this:

//Includes, DUH!
#include <MikeNet.h>
#include <DarkGDK.h>
#include <cstring>

struct CLIENT
{
	int ClientID;

CLIENT()
	{
		ClientID=0;
	}
};

//Function Prototypes
bool	NotHosting(char* sIP);
int		RefreshClient();
int		RefreshServer();

//Global Variables
bool IsHost;
long long int Packet;
char* ServerIP = new char[50];
char* Message = new char[512];
char* cUsername = new char[256];
char* Username = new char[256];

CLIENT clientlist[50];

void DarkGDK()
{
	//Initialize window
	dbInk(dbRGB(0,0,0), dbRGB(245,245,245));
	dbCLS(dbRGB(245,245,245));

//Starts MikeNet
	int lanStart = mnStart(2, 0);
	if(lanStart==0)
	{
		dbPrint("Network Initialized");

//Creates a packet
		Packet = mnCreatePacket();

//Asks for username
		dbPrint("Please enter your preferred username:");
		Username = dbInput();

//Checks if there's already a host on the network
		bool IsNotHost = NotHosting(ServerIP);
		if(IsNotHost)
		{
			//Attempts to connect to host
			int Connected = mnConnect(1, ServerIP, 21009, ServerIP, 21010, 5, true);

//Checks To see if connection was established
			if(Connected==0)
			{
				//Display Host Information
				dbPrint("Connected to host at:");
				dbPrint(ServerIP);
				
				//Client loop
				while(true)
				{
					//Refreshes the client
					RefreshClient();

//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not connect to server");
				dbWaitKey();
			}
		}
		else
		{
			//Trys to start a server
			dbPrint("Attempting to start server");
			int ServerStarted = mnStartServer(1, 50, 1, UM_CATCH_ALL_NO);

//Checks if server started
			if(ServerStarted==0)
			{
				//Display Host Information
				ServerIP = mnGetLocalIPUDP(1);
				dbPrint("Hosting at local address:");
				dbPrint(ServerIP);

//Server loop
				while(true)
				{
					//Refreshes the server
					RefreshServer();

//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not create server");
				dbWaitKey();
			}
		}

delete[] ServerIP;
		delete[] Username;

//Closes MikeNet
		int lanFinish = mnFinish(-1);
		if(lanFinish==0)
		{
			dbPrint("MikeNet Deinitialized");
		}
		else
		{
			dbPrint("MikeNet Deinitialization Failed");
			dbWaitKey();
		}
	}
	else
	{
		dbPrint("MikeNet Initialization Failed");
		dbWaitKey();
	}

int lanClose = mnFinish(-1);
	if(lanClose<0)
	{
		dbPrint("MikeNet Deinitialization Failed");
	}
	delete[] Username;
	delete[] ServerIP;
	return;
}
bool NotHosting(char* sIP)
{
	//Turns Broadcasting on
	int BroadcastOn = mnStartBroadcast(0, 23010, false, true);
	//Checks if broadcasting is on
	if(BroadcastOn==0)
	{
		for(int j=0; j<=1000; j++)
		{
			//Checks for any new packets
			int RecievedPacket = mnRecvUDP(0, Packet, NULL, NULL);
			if(RecievedPacket)
			{
				//Gets IP recieved in packet
				sIP = mnGetStringC(Packet, 0, true);

//Clears packet
				mnClearPacket(Packet);
				return true;
			}
			else
			{
				return false;
			}
			dbWait(1);
		}
	}
	else
	{
		//Display error message
		dbPrint("Broadcast state failed");
		dbWaitKey();
		return false;
	}
}
int RefreshServer()
{
	char* str = new char[600];
	int Recieved;
	int Red;
	int Green;
	int Blue;
	//Checks for new Packets
	for(int j=0; j<50; j++)
	{
		if(clientlist[j].ClientID!=0)
		{
			Recieved = mnRecvUDP(1, Packet, clientlist[j].ClientID, 1);
			if(Recieved>0)
			{
				//Gets text colour
				int Red		= mnGetInt(Packet);
				int Green	= mnGetInt(Packet);
				int Blue	= mnGetInt(Packet);
				cUsername	= mnGetStringC(Packet, 0, true);
				Message		= mnGetStringC(Packet, 0, true);

//Sets Text Colour
				dbInk(dbRGB(Red,Green,Blue), dbRGB(245,245,245));

//Display User Name
				strcpy(str, "<");
				strcat(str, cUsername);
				strcat(str,"> ");
				dbPrint(str);

//Displays message
				dbPrint(Message);

//Forward the packet
				mnSendUDPAll(1, Packet, true, false, 0);

//Clean up
				delete[] Message;
				delete[] str;
				delete[] cUsername;
			}
		}
	}

//Gets host messages
	Message = dbInput();
	if(dbReturnKey())
	{
		//Clears the packet
		mnClearPacket(Packet);

//Adds colour information
		mnAddInt(Packet, 170);
		mnAddInt(Packet, 0);
		mnAddInt(Packet, 0);

//Add username and message
		mnAddStringC(Packet, Username, 0, true);
		mnAddStringC(Packet, Message, 0, true);
		
		//Sends the message
		mnSendUDPAll(1, Packet, true, false, 0);

//Clean up
		delete[] Message;
	}

return 0;
}
int	RefreshClient()
{
	return 0;
}

+ Code Snippet

//Includes, DUH!
#include <MikeNet.h>
#include <DarkGDK.h>
#include <cstring>

struct CLIENT
{
	int ClientID;

	CLIENT()
	{
		ClientID=0;
	}
};

//Function Prototypes
bool	NotHosting(char* sIP);
int		RefreshClient();
int		RefreshServer();

//Global Variables
bool IsHost;
long long int Packet;
char* ServerIP = new char[50];
char* Message = new char[512];
char* cUsername = new char[256];
char* Username = new char[256];

CLIENT clientlist[50];

void DarkGDK()
{
	//Initialize window
	dbInk(dbRGB(0,0,0), dbRGB(245,245,245));
	dbCLS(dbRGB(245,245,245));

	//Starts MikeNet
	int lanStart = mnStart(2, 0);
	if(lanStart==0)
	{
		dbPrint("Network Initialized");

		//Creates a packet
		Packet = mnCreatePacket();

		//Asks for username
		dbPrint("Please enter your preferred username:");
		Username = dbInput();

		//Checks if there's already a host on the network
		bool IsNotHost = NotHosting(ServerIP);
		if(IsNotHost)
		{
			//Attempts to connect to host
			int Connected = mnConnect(1, ServerIP, 21009, ServerIP, 21010, 5, true);

			//Checks To see if connection was established
			if(Connected==0)
			{
				//Display Host Information
				dbPrint("Connected to host at:");
				dbPrint(ServerIP);
				
				//Client loop
				while(true)
				{
					//Refreshes the client
					RefreshClient();

					//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not connect to server");
				dbWaitKey();
			}
		}
		else
		{
			//Trys to start a server
			dbPrint("Attempting to start server");
			int ServerStarted = mnStartServer(1, 50, 1, UM_CATCH_ALL_NO);

			//Checks if server started
			if(ServerStarted==0)
			{
				//Display Host Information
				ServerIP = mnGetLocalIPUDP(1);
				dbPrint("Hosting at local address:");
				dbPrint(ServerIP);

				//Server loop
				while(true)
				{
					//Refreshes the server
					RefreshServer();

					//Reduces processor usage
					dbWait(1);
				}
			}
			else
			{
				//Display error message
				dbPrint("Could not create server");
				dbWaitKey();
			}
		}

		delete[] ServerIP;
		delete[] Username;

		//Closes MikeNet
		int lanFinish = mnFinish(-1);
		if(lanFinish==0)
		{
			dbPrint("MikeNet Deinitialized");
		}
		else
		{
			dbPrint("MikeNet Deinitialization Failed");
			dbWaitKey();
		}
	}
	else
	{
		dbPrint("MikeNet Initialization Failed");
		dbWaitKey();
	}

	int lanClose = mnFinish(-1);
	if(lanClose<0)
	{
		dbPrint("MikeNet Deinitialization Failed");
	}
	delete[] Username;
	delete[] ServerIP;
	return;
}
bool NotHosting(char* sIP)
{
	//Turns Broadcasting on
	int BroadcastOn = mnStartBroadcast(0, 23010, false, true);
	//Checks if broadcasting is on
	if(BroadcastOn==0)
	{
		for(int j=0; j<=1000; j++)
		{
			//Checks for any new packets
			int RecievedPacket = mnRecvUDP(0, Packet, NULL, NULL);
			if(RecievedPacket)
			{
				//Gets IP recieved in packet
				sIP = mnGetStringC(Packet, 0, true);

				//Clears packet
				mnClearPacket(Packet);
				return true;
			}
			else
			{
				return false;
			}
			dbWait(1);
		}
	}
	else
	{
		//Display error message
		dbPrint("Broadcast state failed");
		dbWaitKey();
		return false;
	}
}
int RefreshServer()
{
	char* str = new char[600];
	int Recieved;
	int Red;
	int Green;
	int Blue;
	//Checks for new Packets
	for(int j=0; j<50; j++)
	{
		if(clientlist[j].ClientID!=0)
		{
			Recieved = mnRecvUDP(1, Packet, clientlist[j].ClientID, 1);
			if(Recieved>0)
			{
				//Gets text colour
				int Red		= mnGetInt(Packet);
				int Green	= mnGetInt(Packet);
				int Blue	= mnGetInt(Packet);
				cUsername	= mnGetStringC(Packet, 0, true);
				Message		= mnGetStringC(Packet, 0, true);

				//Sets Text Colour
				dbInk(dbRGB(Red,Green,Blue), dbRGB(245,245,245));

				//Display User Name
				strcpy(str, "<");
				strcat(str, cUsername);
				strcat(str,"> ");
				dbPrint(str);

				//Displays message
				dbPrint(Message);

				//Forward the packet
				mnSendUDPAll(1, Packet, true, false, 0);

				//Clean up
				delete[] Message;
				delete[] str;
				delete[] cUsername;
			}
		}
	}

	//Gets host messages
	Message = dbInput();
	if(dbReturnKey())
	{
		//Clears the packet
		mnClearPacket(Packet);

		//Adds colour information
		mnAddInt(Packet, 170);
		mnAddInt(Packet, 0);
		mnAddInt(Packet, 0);

		//Add username and message
		mnAddStringC(Packet, Username, 0, true);
		mnAddStringC(Packet, Message, 0, true);
		
		//Sends the message
		mnSendUDPAll(1, Packet, true, false, 0);

		//Clean up
		delete[] Message;
	}

	return 0;
}
int	RefreshClient()
{
	return 0;
}

though now when I try to close it, it just freezes, its responding, but I can't close it, also, if I try to close it before the "if(IsNotHost)" it still goes into the if statement. Sorry to be such a nuisance.

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Dark GDK / DarkNet sending old packets?

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