Thread: I am writing a (http) proxy server in windows, it doesn't work I expect?

Code:

nfds = sacceptedclient > swebside ? sacceptedclient : swebside;
	send(swebside, buf, sizeof(buf), 0);
	ZeroMemory(buf, sizeof(buf));
	//tv.tv_sec = 2;
	//tv.tv_usec = 20;
	while(1)
	{
		FD_ZERO(&fds1);
		FD_SET(sacceptedclient, &fds1);
		FD_SET(swebside, &fds1);
		if((j = select(nfds+1, &fds1, NULL, NULL, NULL)) == SOCKET_ERROR)
			break;
		//if(j <= 0) break;
		if(FD_ISSET(swebside, &fds1))
		{
			ZeroMemory(buf, sizeof(buf));
			i = recv(swebside, buf, sizeof(buf), 0);
			if(i > 0)
			send(sacceptedclient,buf, i, 0);
			else break;
		}
		if(FD_ISSET(sacceptedclient, &fds1))
		{
			ZeroMemory(buf, sizeof(buf));
			i = recv(sacceptedclient, buf, sizeof(buf), 0);
			if(i > 0)
			send(swebside, buf, i, 0);
			else break;
		}		
	}

I receive http error 400.



What is the problm?