C / C++ / MFC

CString CMainFrame::OnCompareAddress(CMySocket* pSocket)
{
	CString strAddress,strListAddress, strDns, strName;
	unsigned int iPort;
	
	pSocket->GetPeerName(strAddress, iPort);

	int iCount = m_array.GetSize();
	while(iCount > 0)
	{	
		ProcessMessages();

		sfriend pFriend; // Structure in my array
		pFriend = m_array.GetAt(iCount-1);
		CString strDns = pFriend.strDns;

		// Resolve the host name "DNS" name to a IP Address
		hostent *pHost = gethostbyname(strDns);
		if ( pHost != 0 )
		{
			// Copy the IP address into sockaddr_in structure
			// There is only one hostent structure per thread, so we need to copy it before we call the function
			// again.
			sockaddr_in addr;
			memset( &addr, 0, sizeof(addr) );
			addr.sin_family = AF_INET;
			memcpy( &addr.sin_addr, pHost->h_addr, pHost->h_length );
			
			strListAddress = inet_ntoa(addr.sin_addr);
		}
		else
			iCount = 0;

		// If the IP Addresses match, return the host name from our array;
		if(!strAddress.CompareNoCase(strListAddress))
		{
			strName = strDns;
			iCount = 0;
		}
		else
			iCount --;
	}

	if(!strName.IsEmpty())	// not empty, send DNS name..
		return strName;
	else					// Empty, send the ip address of the socket..
		return strAddress;
}

void CMainFrame::OnAccept()
{
	CMySocket* pSocket = new CMySocket();
	pSocket->SetParent(this);

	if (!m_sListen.Accept(*pSocket))
		delete pSocket;
	else
	{
		// Socket was Accepted successfully..

		// Put the pointer at the tail of our pointer list..
		m_pConnectionList.AddTail(pSocket);
		
		// Get the DNS name of the socket..
		CString strName = OnCompareAddress(pSocket); // If I make strName = DNS or IP address it works.. WEIRD

		int nFound = 0;
		
		int iCount = m_array.GetSize();
		while(iCount > 0)
		{
			sfriend pFriend;
			pFriend = m_array.GetAt(iCount-1);
			CString strDns = pFriend.strDns;
					
			if(!strDns.CompareNoCase(strName))	// We have a match
			{
				nFound = 1;
				iCount = 0;
			}
			else								// No match try again
				iCount --;
		}

		if(nFound = 0 /* Not Found */)
		{
			CString strMessage;
			strMessage = "(NOT_IN_LIST): ";
								
			int iLen = strMessage.GetLength();
			pSocket->Send((LPCSTR)strMessage,iLen);

			OnCloseConnection(pSocket);
		}
		else // We found the friend, lets send them our status..
			OnSendMyStatus(pSocket);
	}
}