Thread: failed with error 11004

i have a winsock program that is in unicode and it is having problems resolving some ips/hostnames , i used get last error to get the error and i got this

failed with error 11004: The request name is valid and was found in the database , but it does not have the correct associated data being resolved for

would any one know why that is?

heres the code

Code:

int ConnectAndSend(){

unsigned short port = 9980;
int retval = 0;
struct sockaddr_in server;
WSADATA wsaData;
SOCKET conns;
struct hostent *hp;
unsigned int addr;
TCHAR server_name[128];

retval = WSAStartup(0x202, &wsaData);

if (retval != 0){
  AppendWindowText(hwndRichEdit, _T("ERROR: Cannot load winsock DLL.\r\n"));
  return 1;
}

AppendWindowText(hwndRichEdit, _T("> Winsock DLL loaded.\r\n"));

SendMessage(hwndIPEdit, WM_GETTEXT, (WPARAM)ARRAYSIZE(server_name), (LPARAM)server_name);
if (SendMessage(hwndIPEdit, WM_GETTEXT, (WPARAM)ARRAYSIZE(server_name), (LPARAM)server_name))
{
	char server_nameA[128];

	// Convert down to ansi...
	TToAnsi(server_name, server_nameA, ARRAYSIZE(server_nameA));

	// Now use the A version where needed...
	if (isalpha(server_nameA[0]))
	{
		hp = gethostbyname(server_nameA);
	}
	else
	{
		addr = inet_addr(server_nameA);
		hp = gethostbyaddr((const char *) &addr, 4, AF_INET);
	}

if (hp == NULL){
  ErrorExit(hp);
  AppendWindowText(hwndRichEdit, _T("Can't resolve IP/Hostname. Please make sure it is correct.\r\n"));
  WSACleanup();
  return 1;
}

i did that with yahoo as the domain and got this

DNS query for yahoo.com failed: Connection reset

it happens with a few ip..

could there be a better alternative to A server?

The same thing is happening to me, execpt I'm not using unicode and I'm only using the gethostbyaddr().

I figured out my problem, when i use gethostbyname() it works fine