#define SERVER_NAME_LEN 64
#define MSG_LEN 2047


int sock;            /* The socket file descriptor for our "listening"  socket */
int connectlist[5];  /* Array of connected sockets so we know who  we are talking to */
fd_set socks;        /* Socket file descriptors we want to wake up for, using select() */
int highsock;	     /* Highest #'d file descriptor, needed for select() */



int main()
{ 
  int port = 50002;
  struct sockaddr_in server_addr;

  char serverName[SERVER_NAME_LEN];
  struct hostent *hp;

	memset((char *) &server_addr, 0, sizeof(server_addr));
	printf("start\n");

	server_addr.sin_family = AF_INET;// hp->h_addrtype;
	server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
	server_addr.sin_port = htons(port);

	if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 
	  {
	    perror("socket");
	    exit(-1);
	  }
	printf("sock() = %d\n", sock);

	setnonblocking(sock);
	printf("nonblock()\n");

	if (bind(sock, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0 )
	  {
		perror("bind");
		close(sock);
		exit(-1);
	  }
	printf("bind()\n");
  
	listen(sock,5);
	printf("listen()\n");

	/* Since we start with only one socket, the listening socket, it is the highest socket so far. */
	highsock = sock;
	printf("highsock = % d\n", highsock);

	memset((char *) &connectlist, 0, sizeof(connectlist));

	while (1)
	  { /* Main server loop - forever */
                            int listnum = 0;
	
	            FD_ZERO(&socks);
	            FD_SET(sock,&socks);
	
	             for (; listnum < 5; listnum++)
	             {
		    if (connectlist[listnum] != 0) 
		          {
			   FD_SET(connectlist[listnum],&socks);
			   if (connectlist[listnum] > highsock)
			   {
				highsock = connectlist[listnum];
			   }
		       	   printf("sock %d in lisetning mode. ", connectlist[listnum]);
			   printf("highsock = % d\n", highsock);
		            }
		printf("connectlist[%d] = 0\n", listnum);
	                }
		printf("built select list()\n");

--------------------->>>>>>>>>>>>>>>>>>>>>>>>

		int readsocks = select(highsock+1, &socks, (fd_set *) 0, (fd_set *) 0, 0);

--------------------->>>>>>>>>>>>>>>>>>>>>>>>
		printf("readsocks = % d\n", readsocks);
		
		if (readsocks < 0)
		  {
			perror("select");
			exit(-1);
		  }
		if (readsocks == 0)
		  {
			/* Nothing ready to read, just show that
			   we're alive */
			printf(".");
			fflush(stdout);
		  } 
		else
		  {
			read_socks();
		  }
	} /* while(1) */
} /* main */