[HaBo]

	//create all the needed stuff
	SOCKET receiver, sender, broadcaster;
	int broadcast=1;
	int ret=0;
	int size=0;
	char buffer[540];
	SOCKADDR_IN addr, rem_addr;
	memset(&rem_addr,0,sizeof(rem_addr));
	
	//creat the 3 sockets
	broadcaster=socket(AF_INET,SOCK_DGRAM,0);
	receiver=socket(AF_INET,SOCK_DGRAM,0);
	sender=socket(AF_INET,SOCK_DGRAM,0);
	if(receiver==INVALID_SOCKET||sender==INVALID_SOCKET||broadcaster==INVALID_SOCKET)
	{
		error("One of the sockets couldn't be initialised!! Terminating");
		error(WSAErr(WSAGetLastError()));
		goto end;
	}

	//set the sockopt for broadcast (is the error here????)
	if(setsockopt(broadcaster,SOL_SOCKET,SO_BROADCAST,(char *)&broadcast,sizeof(broadcast))==SOCKET_ERROR)
	{
		error("The broadcast-setting couldn't been initiated, revew your network settings or ask your administrator, terminating");
		error(WSAErr(WSAGetLastError()));
		goto end;
	}

	//get my own adress
	addr.sin_family=AF_INET;
	addr.sin_addr.S_un.S_addr=htonl(INADDR_BROADCAST);
	addr.sin_port=htons(S_PORT);

	gethostname(buffer,sizeof(buffer));
	hostent *me=gethostbyname(buffer);
	in_addr *ptr=(in_addr*)me->h_addr;
	sprintf(buffer,"hi#%s#%d",inet_ntoa(*ptr),ID);


	rem_addr.sin_family=AF_INET;
	rem_addr.sin_port=htons(S_PORT);
	rem_addr.sin_addr=*ptr;

	//send my broadcast!!
	int len=sendto(broadcaster,buffer,(int)strlen(buffer),0,(SOCKADDR*)&addr,sizeof(addr));
	if(len!=strlen(buffer))
	{
		error("Broadcast hello couldn't been send in one packet! Review your network settings (buffer size min 540)! Terminating");
	}
	closesocket(broadcaster);

	//bind the receiver socket
	addr.sin_addr=*ptr;
	if(bind(receiver,(SOCKADDR*)&addr,sizeof(addr))==SOCKET_ERROR)
	{
		error("Couldn't bind socket to port/adress, look if it isn't in use and restart");
		error(WSAErr(WSAGetLastError()));
		goto end;
	}

	while(running)
	{
		size=sizeof(rem_addr);
		//blocking command, but it NEVER returns --> never gets a packet
		ret=recvfrom(receiver,buffer,sizeof(buffer)-1,0,(SOCKADDR*)&rem_addr,&size);
		if(ret==SOCKET_ERROR)
		{
			error("Couldn't receive from socket...");
			error(WSAErr(WSAGetLastError()));
			running=false;
			goto end;
		}
		buffer[ret]=0;

		WriteFile(pipe,buffer,(int)strlen(buffer),(LPDWORD)&size,NULL);
		if(size!=strlen(buffer))
			error("Couldn't write all data into buffer!! Expect errors!!");
		
		if(memcmp(buffer,"hi",2)==0)
		{
			sprintf(buffer,"me#%s#%d",inet_ntoa(*ptr),time(NULL));

			ret=sendto(sender,buffer,(int)strlen(buffer),0,(SOCKADDR*)&rem_addr,sizeof(rem_addr));
			if(ret==SOCKET_ERROR)
			{
				error("Couldn't send to socket...");
				error(WSAErr(WSAGetLastError()));
				running=false;
				goto end;
			}
		}
	}
	closesocket(receiver);
	closesocket(sender);

	WORD wVersionRequested;
	WSADATA wsaData;
	hostent *me;
	SOCKET sock, sender;
	SOCKADDR_IN myaddr;
	SOCKADDR_IN remoteaddr;
	int lenght=sizeof(remoteaddr);
	char buffer[540];
	int len=0;
	 
	wVersionRequested=MAKEWORD(2,2);
	 
	WSAStartup(wVersionRequested,&wsaData );


	myaddr.sin_family=AF_INET;
	myaddr.sin_port=htons(4300);

	gethostname(buffer,sizeof(buffer));
	me=gethostbyname(buffer);
	myaddr.sin_addr=*(in_addr*)me->h_addr;

	sock=socket(AF_INET,SOCK_DGRAM,0);
	sender=socket(AF_INET,SOCK_DGRAM,0);
	u_long noblock=1;
	bind(sock,(SOCKADDR*)&myaddr,sizeof(myaddr));

	while(1)
	{
	WORD wVersionRequested;
	WSADATA wsaData;
	hostent *me;
	SOCKET sock, sender;
	SOCKADDR_IN myaddr;
	SOCKADDR_IN remoteaddr;
	int lenght=sizeof(remoteaddr);
	char buffer[540];
	int len=0;
	 
	wVersionRequested=MAKEWORD(2,2);
	 
	WSAStartup(wVersionRequested,&wsaData );


	myaddr.sin_family=AF_INET;
	myaddr.sin_port=htons(4300);

	gethostname(buffer,sizeof(buffer));
	me=gethostbyname(buffer);
	myaddr.sin_addr=*(in_addr*)me->h_addr;

	sock=socket(AF_INET,SOCK_DGRAM,0);
	sender=socket(AF_INET,SOCK_DGRAM,0);
	u_long noblock=1;
	bind(sock,(SOCKADDR*)&myaddr,sizeof(myaddr));

	while(1)
	{
		//get the broadcast
		len=recvfrom(sock,buffer,sizeof(buffer)-1,0,(SOCKADDR*)&remoteaddr,&lenght);
		if(len==SOCKET_ERROR)
			printf("%s\n",err(WSAGetLastError()));
		buffer[len]=0;
		printf("%s has send %d bites, %s\n",inet_ntoa(remoteaddr.sin_addr),len,buffer);
		strcpy(buffer,"me#123.21.233.12#12342131241234");
		closesocket(sock);
		Sleep(5000);

		//hier liegt der Hund (=Fehler) vergraben
		remoteaddr.sin_port=htons(4300);

		//send the answer to the broadcaster
		len=sendto(sender,buffer,strlen(buffer),0,(SOCKADDR*)&remoteaddr,sizeof(remoteaddr));
		if(len==SOCKET_ERROR)
			printf("%s\n",err(WSAGetLastError()));
	}

	return 0;