windows-xp/Source/XPSP1/NT/admin/snapin/dnsmgr/dnssnap.cpp

// This is a part of the Microsoft Management Console.
// Copyright (C) Microsoft Corporation, 1995 - 1999
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Management Console and related
// electronic documentation provided with the interfaces.

// You will need the NT SUR Beta 2 SDK or VC 4.2 in order to build this
// project.  This is because you will need MIDL 3.00.15 or higher and new
// headers and libs.  If you have VC 4.2 installed, then everything should
// already be configured correctly.

#include "preDNSsn.h"
#include <SnapBase.h>

#include "resource.h"
#include "dnsutil.h"
#include "DNSSnap.h"
#include "snapdata.h"

#include "server.h"
#include "domain.h"
#include "record.h"
#include "zone.h"

#include "HelpArr.h"	// context help ID's


#ifdef DEBUG_ALLOCATOR
	#ifdef _DEBUG
	#define new DEBUG_NEW
	#undef THIS_FILE
	static char THIS_FILE[] = __FILE__;
	#endif
#endif

//////////////////////////////////////////////////////////////////////////////
// regsvr debugging

// define to enable MsgBox debugging for regsvr32
//#define _MSGBOX_ON_REG_FAIL


#ifdef _MSGBOX_ON_REG_FAIL
#define _MSGBOX(x) AfxMessageBox(x)
#else
#define _MSGBOX(x)
#endif

#ifdef _MSGBOX_ON_REG_FAIL
#define _REPORT_FAIL(lpszMessage, lpszClsid, lRes) \
  ReportFail(lpszMessage, lpszClsid, lRes)

void ReportFail(LPCWSTR lpszMessage, LPCWSTR lpszClsid, LONG lRes)
{
  if (lRes == ERROR_SUCCESS)
    return;

  CString sz;
  sz.Format(_T("%s %s %d"), lpszMessage,lpszClsid, lRes);
  AfxMessageBox(sz);
}

#else
#define _REPORT_FAIL(lpszMessage, lpszClsid, lRes)
#endif


//////////////////////////////////////////////////////////////////////////////
// global constants and macros

// GUIDs for snapin
const CLSID CLSID_DNSSnapin =
{ 0x2faebfa2, 0x3f1a, 0x11d0, { 0x8c, 0x65, 0x0, 0xc0, 0x4f, 0xd8, 0xfe, 0xcb } };

// {80105023-50B1-11d1-B930-00A0C9A06D2D}
const CLSID CLSID_DNSSnapinEx =
{ 0x80105023, 0x50b1, 0x11d1, { 0xb9, 0x30, 0x0, 0xa0, 0xc9, 0xa0, 0x6d, 0x2d } };

// {6C1303DC-BA00-11d1-B949-00A0C9A06D2D}
const CLSID CLSID_DNSSnapinAbout =
{ 0x6c1303dc, 0xba00, 0x11d1, { 0xb9, 0x49, 0x0, 0xa0, 0xc9, 0xa0, 0x6d, 0x2d } };

// {6C1303DD-BA00-11d1-B949-00A0C9A06D2D}
const CLSID CLSID_DNSSnapinAboutEx =
{ 0x6c1303dd, 0xba00, 0x11d1, { 0xb9, 0x49, 0x0, 0xa0, 0xc9, 0xa0, 0x6d, 0x2d } };


///////////////////////////////////////////////////////////////////////////////
// RESOURCES


BEGIN_MENU(CDNSRootDataMenuHolder)
	BEGIN_CTX
		CTX_ENTRY_VIEW(IDM_SNAPIN_ADVANCED_VIEW, L"_DNS_ADVANCED")
    CTX_ENTRY_VIEW(IDM_SNAPIN_FILTERING, L"_DNS_FILTER")
		CTX_ENTRY_TOP(IDM_SNAPIN_CONNECT_TO_SERVER, L"_DNS_CONNECTTOP")
		CTX_ENTRY_TASK(IDM_SNAPIN_CONNECT_TO_SERVER, L"_DNS_CONNECTTASK")
	END_CTX
	BEGIN_RES
		RES_ENTRY(IDS_SNAPIN_ADVANCED_VIEW)
    RES_ENTRY(IDS_SNAPIN_FILTERING)
		RES_ENTRY(IDS_SNAPIN_CONNECT_TO_SERVER)
		RES_ENTRY(IDS_SNAPIN_CONNECT_TO_SERVER)
	END_RES
END_MENU

BEGIN_MENU(CDNSServerMenuHolder)
	BEGIN_CTX
    CTX_ENTRY_VIEW(IDM_SNAPIN_ADVANCED_VIEW, L"_DNS_ADVANCED")
    CTX_ENTRY_VIEW(IDM_SNAPIN_MESSAGE, L"_DNS_MESSAGE")
    CTX_ENTRY_VIEW(IDM_SNAPIN_FILTERING, L"_DNS_FILTER")
    CTX_ENTRY_TOP(IDM_SERVER_CONFIGURE, L"_DNS_CONFIGURETOP")
#ifdef USE_NDNC
    CTX_ENTRY_TOP(IDM_SERVER_CREATE_NDNC, L"_DNS_CREATENDNC")
#endif
    CTX_ENTRY_TOP(IDM_SERVER_NEW_ZONE, L"_DNS_ZONE")
    CTX_ENTRY_TOP(IDM_SERVER_SET_AGING, L"_DNS_AGING")
    CTX_ENTRY_TOP(IDM_SERVER_SCAVENGE, L"_DNS_SCAVENGETOP")
    CTX_ENTRY_TOP(IDM_SERVER_UPDATE_DATA_FILES, L"_DNS_UPDATETOP")
    CTX_ENTRY_TOP(IDM_SERVER_CLEAR_CACHE, L"_DNS_CLEARCACHETOP")
    CTX_ENTRY_TASK(IDM_SERVER_CONFIGURE, L"_DNS_CONFIGURETASK")
    CTX_ENTRY_TASK(IDM_SERVER_SCAVENGE, L"_DNS_SCAVENGETASK")
    CTX_ENTRY_TASK(IDM_SERVER_UPDATE_DATA_FILES, L"_DNS_UPDATETASK")
    CTX_ENTRY_TASK(IDM_SERVER_CLEAR_CACHE, L"_DNS_CLEARCACHETASK")
	END_CTX
	BEGIN_RES
    RES_ENTRY(IDS_SNAPIN_ADVANCED_VIEW)
    RES_ENTRY(IDS_SNAPIN_MESSAGE)
    RES_ENTRY(IDS_SNAPIN_FILTERING)
    RES_ENTRY(IDS_SERVER_CONFIGURE)
#ifdef USE_NDNC
    RES_ENTRY(IDS_SERVER_CREATE_NDNC)
#endif
    RES_ENTRY(IDS_SERVER_NEW_ZONE)
    RES_ENTRY(IDS_SERVER_SET_AGING)
    RES_ENTRY(IDS_SERVER_SCAVENGE)
    RES_ENTRY(IDS_SERVER_UPDATE_DATA_FILES)
    RES_ENTRY(IDS_SERVER_CLEAR_CACHE)
    RES_ENTRY(IDS_SERVER_CONFIGURE)
    RES_ENTRY(IDS_SERVER_SCAVENGE)
    RES_ENTRY(IDS_SERVER_UPDATE_DATA_FILES)
    RES_ENTRY(IDS_SERVER_CLEAR_CACHE)
	END_RES
END_MENU

BEGIN_MENU(CDNSCathegoryFolderHolder)
	BEGIN_CTX
    CTX_ENTRY_VIEW(IDM_SNAPIN_ADVANCED_VIEW, L"_DNS_ADVANCED")		
    CTX_ENTRY_VIEW(IDM_SNAPIN_FILTERING, L"_DNS_FILTER")
	END_CTX
	BEGIN_RES
    RES_ENTRY(IDS_SNAPIN_ADVANCED_VIEW)
    RES_ENTRY(IDS_SNAPIN_FILTERING)
	END_RES
END_MENU


BEGIN_MENU(CDNSAuthoritatedZonesMenuHolder)
	BEGIN_CTX
    CTX_ENTRY_VIEW(IDM_SNAPIN_ADVANCED_VIEW, L"_DNS_ADVANCED")		
    CTX_ENTRY_VIEW(IDM_SNAPIN_FILTERING, L"_DNS_FILTER")
    CTX_ENTRY_TOP(IDM_SERVER_NEW_ZONE, L"_DNS_ZONETOP")
	END_CTX
	BEGIN_RES
    RES_ENTRY(IDS_SNAPIN_ADVANCED_VIEW)
    RES_ENTRY(IDS_SNAPIN_FILTERING)
    RES_ENTRY(IDS_SERVER_NEW_ZONE)
	END_RES
END_MENU

BEGIN_MENU(CDNSCacheMenuHolder)
	BEGIN_CTX
    CTX_ENTRY_TOP(IDM_CACHE_FOLDER_CLEAR_CACHE, L"_DNS_CLEARCACHETOP")		
    CTX_ENTRY_TASK(IDM_CACHE_FOLDER_CLEAR_CACHE, L"_DNS_CLEARCACHETASK")		
	END_CTX
	BEGIN_RES
		RES_ENTRY(IDS_CACHE_FOLDER_CLEAR_CACHE)
		RES_ENTRY(IDS_CACHE_FOLDER_CLEAR_CACHE)
	END_RES
END_MENU


BEGIN_MENU(CDNSZoneMenuHolder)
	BEGIN_CTX
    CTX_ENTRY_VIEW(IDM_SNAPIN_ADVANCED_VIEW, L"_DNS_ADVANCED")		
    CTX_ENTRY_VIEW(IDM_SNAPIN_FILTERING, L"_DNS_FILTER")

		CTX_ENTRY_TOP(IDM_ZONE_UPDATE_DATA_FILE, L"_DNS_UPDATETOP")
    CTX_ENTRY_TOP(IDM_ZONE_RELOAD, L"_DNS_RELOADTOP")
    CTX_ENTRY_TOP(IDM_ZONE_TRANSFER, L"_DNS_TRANSFERTOP")
    CTX_ENTRY_TOP(IDM_ZONE_RELOAD_FROM_MASTER, L"_DNS_RELOADMASTERTOP")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_HOST, L"_DNS_NEWHOST")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_PTR, L"_DNS_NEWPTR")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_ALIAS, L"_DNS_NEWALIAS")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_MX, L"_DNS_NEWMX")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_DOMAIN, L"_DNS_NEWDOMAIN")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_DELEGATION, L"_DNS_NEWDELEGATION")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_RECORD, L"_DNS_NEWRECORD")
		CTX_ENTRY_TASK(IDM_ZONE_UPDATE_DATA_FILE, L"_DNS_UPDATETASK")
    CTX_ENTRY_TASK(IDM_ZONE_RELOAD, L"_DNS_RELOADTASK")
    CTX_ENTRY_TASK(IDM_ZONE_TRANSFER, L"_DNS_TRANSFERTASK")
    CTX_ENTRY_TASK(IDM_ZONE_RELOAD_FROM_MASTER, L"_DNS_RELOADMASTERTASK")
	END_CTX
	BEGIN_RES
		RES_ENTRY(IDS_SNAPIN_ADVANCED_VIEW)
    RES_ENTRY(IDS_SNAPIN_FILTERING)

		//RES_ENTRY(IDS_ZONE_PAUSE)
		RES_ENTRY(IDS_ZONE_UPDATE_DATA_FILE)
    RES_ENTRY(IDS_ZONE_RELOAD)
    RES_ENTRY(IDS_ZONE_TRANSFER)
    RES_ENTRY(IDS_ZONE_RELOAD_FROM_MASTER)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_HOST)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_PTR)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_ALIAS)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_MX)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_DOMAIN)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_DELEGATION)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_RECORD)
		RES_ENTRY(IDS_ZONE_UPDATE_DATA_FILE)
    RES_ENTRY(IDS_ZONE_RELOAD)
    RES_ENTRY(IDS_ZONE_TRANSFER)
    RES_ENTRY(IDS_ZONE_RELOAD_FROM_MASTER)
	END_RES
END_MENU

BEGIN_MENU(CDNSDomainMenuHolder)
	BEGIN_CTX
    CTX_ENTRY_VIEW(IDM_SNAPIN_ADVANCED_VIEW, L"_DNS_ADVANCED")		
    CTX_ENTRY_VIEW(IDM_SNAPIN_FILTERING, L"_DNS_FITLER")

    CTX_ENTRY_TOP(IDM_DOMAIN_NEW_HOST, L"_DNS_NEWHOST")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_PTR, L"_DNS_NEWPTR")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_ALIAS, L"_DNS_NEWALIAS")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_MX, L"_DNS_NEWMX")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_DOMAIN, L"_DNS_NEWDOMAIN")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_DELEGATION, L"_DNS_NEWDELEGATION")
		CTX_ENTRY_TOP(IDM_DOMAIN_NEW_RECORD, L"_DNS_NEWRECORD")
	END_CTX
	BEGIN_RES
		RES_ENTRY(IDS_SNAPIN_ADVANCED_VIEW)
    RES_ENTRY(IDS_SNAPIN_FILTERING)

    RES_ENTRY(IDS_DOMAIN_NEW_NEW_HOST)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_PTR)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_ALIAS)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_MX)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_DOMAIN)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_DELEGATION)
		RES_ENTRY(IDS_DOMAIN_NEW_NEW_RECORD)
	END_RES
END_MENU

BEGIN_MENU(CDNSRecordMenuHolder)
	BEGIN_CTX
	END_CTX

	BEGIN_RES
	END_RES
END_MENU


// # of columns in the result pane and map for resource strings

extern RESULT_HEADERMAP _DefaultHeaderStrings[] =
{
	{ L"", IDS_HEADER_NAME, LVCFMT_LEFT, 180},
	{ L"", IDS_HEADER_TYPE, LVCFMT_LEFT, 90},
	{ L"", IDS_HEADER_DATA, LVCFMT_LEFT, 160}
};

extern RESULT_HEADERMAP _ServerHeaderStrings[] =
{
	{ L"", IDS_HEADER_NAME, LVCFMT_LEFT, 180},
};

extern RESULT_HEADERMAP _ZoneHeaderStrings[] =
{
	{ L"", IDS_HEADER_NAME,   LVCFMT_LEFT, 180},
	{ L"", IDS_HEADER_TYPE,   LVCFMT_LEFT, 90},
//  { L"", IDS_HEADER_PARTITION, LVCFMT_LEFT, 100},
	{ L"", IDS_HEADER_STATUS, LVCFMT_LEFT, 160}
};

#define N_ZONE_TYPES (7)
extern ZONE_TYPE_MAP _ZoneTypeStrings[] = 
{
  { L"", IDS_ZONE_TYPE_AD_INTEGRATED },
  { L"", IDS_ZONE_TYPE_STANDARD_PRIMARY },
  { L"", IDS_ZONE_TYPE_SECONDARY },
  { L"", IDS_ZONE_TYPE_RUNNING },
  { L"", IDS_ZONE_TYPE_PAUSED },
  { L"", IDS_ZONE_TYPE_STUB },
  { L"", IDS_ZONE_TYPE_STUB_DS }
};

//
// Toolbar buttons
//

MMCBUTTON g_DNSMGR_SnapinButtons[] =
{
  { 0, toolbarNewServer, !TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0 },
  { 1, toolbarNewRecord, !TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0 },
  { 2, toolbarNewZone,   !TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0 }
};

//
// We have to maintain the memory for the toolbar button strings
// so this class holds the strings until it is time for them to be
// deleted
//
class CButtonStringsHolder
{
public:
  CButtonStringsHolder()
  {
    m_astr = NULL;
  }
  ~CButtonStringsHolder()
  {
    if (m_astr != NULL)
      delete[] m_astr;
  }
  CString* m_astr; // dynamic array of CStrings
};

CButtonStringsHolder g_astrButtonStrings;

BOOL LoadZoneTypeResources(ZONE_TYPE_MAP* pHeaderMap, int nCols)
{
	HINSTANCE hInstance = _Module.GetModuleInstance();
	for ( int i = 0; i < nCols ; i++)
	{
		if ( 0 == ::LoadString(hInstance, pHeaderMap[i].uResID, pHeaderMap[i].szBuffer, MAX_RESULT_HEADER_STRLEN))
			return TRUE;
	}
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////
// CDNSMgrModule

HRESULT WINAPI CDNSMgrModule::UpdateRegistryCLSID(const CLSID& clsid, BOOL bRegister)
{
	static const WCHAR szIPS32[] = _T("InprocServer32");
	static const WCHAR szCLSID[] = _T("CLSID");

	HRESULT hRes = S_OK;

	LPOLESTR lpOleStrCLSIDValue = NULL;
	::StringFromCLSID(clsid, &lpOleStrCLSIDValue);
  if (lpOleStrCLSIDValue == NULL)
  {
    return E_OUTOFMEMORY;
  }

	CRegKey key;
	if (bRegister)
	{
		LONG lRes = key.Open(HKEY_CLASSES_ROOT, szCLSID);
    _REPORT_FAIL(L"key.Open(HKEY_CLASSES_ROOT", lpOleStrCLSIDValue, lRes);
		if (lRes == ERROR_SUCCESS)
		{
			lRes = key.Create(key, lpOleStrCLSIDValue);
      _REPORT_FAIL(L"key.Create(key", lpOleStrCLSIDValue, lRes);
			if (lRes == ERROR_SUCCESS)
			{
				WCHAR szModule[_MAX_PATH];
				::GetModuleFileName(m_hInst, szModule, _MAX_PATH);
				lRes = key.SetKeyValue(szIPS32, szModule);
        _REPORT_FAIL(L"key.SetKeyValue(szIPS32", lpOleStrCLSIDValue, lRes);
			}
		}
		if (lRes != ERROR_SUCCESS)
			hRes = HRESULT_FROM_WIN32(lRes);
	}
	else
	{
		key.Attach(HKEY_CLASSES_ROOT);
		if (key.Open(key, szCLSID) == ERROR_SUCCESS)
			key.RecurseDeleteKey(lpOleStrCLSIDValue);
	}
	::CoTaskMemFree(lpOleStrCLSIDValue);
	return hRes;
}


///////////////////////////////////////////////////////////////////////////////
// Module, Object Map and DLL entry points

CDNSMgrModule _Module;

BEGIN_OBJECT_MAP(ObjectMap)
	OBJECT_ENTRY(CLSID_DNSSnapin, CDNSComponentDataObject)		// standalone snapin
	OBJECT_ENTRY(CLSID_DNSSnapinEx, CDNSComponentDataObjectEx)	// namespace extension

  OBJECT_ENTRY(CLSID_DNSSnapinAbout, CDNSSnapinAbout)	// standalone snapin about
  OBJECT_ENTRY(CLSID_DNSSnapinAboutEx, CDNSSnapinAboutEx)	// namespace extension about
END_OBJECT_MAP()


STDAPI DllCanUnloadNow(void)
{
	AFX_MANAGE_STATE(AfxGetStaticModuleState());
	return (AfxDllCanUnloadNow()==S_OK && _Module.GetLockCount()==0) ? S_OK : S_FALSE;
}

STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
	return _Module.GetClassObject(rclsid, riid, ppv);
}


static _NODE_TYPE_INFO_ENTRY _NodeTypeInfoEntryArray[] = {
	{ &CDNSRootData::NodeTypeGUID,			_T("Root DNS Snapin Subtree")	},
	{ &CDNSServerNode::NodeTypeGUID,		_T("DNS Snapin Server Node")	},
	{ &CDNSZoneNode::NodeTypeGUID,			_T("DNS Snapin Zone Node")		},
	{ &CDNSDomainNode::NodeTypeGUID,		_T("DNS Snapin Domain Node")	},
	{ &CDNSRecordNodeBase::NodeTypeGUID,	_T("DNS Snapin Record Node")	},
	{ NULL, NULL }
};


///////////////////////////////////////////////////////////////////////////
// external GUIDs (from Computer Management Snapin)

const CLSID CLSID_SystemServiceManagementExt =	
	{0x58221C6a,0xEA27,0x11CF,{0xAD,0xCF,0x00,0xAA,0x00,0xA8,0x00,0x33}};

const CLSID CLSID_NodeTypeServerApps =
  { 0x476e6449, 0xaaff, 0x11d0, { 0xb9, 0x44, 0x0, 0xc0, 0x4f, 0xd8, 0xd5, 0xb0 } };

const CLSID CLSID_EventViewerExt = 
  { 0x394C052E, 0xB830, 0x11D0, { 0x9A, 0x86, 0x00, 0xC0, 0x4F, 0xD8, 0xDB, 0xF7 } };


////////////////////////////////////////////////////////////////////
// Server Applications Registration functions

const TCHAR DNS_KEY[] = TEXT("System\\CurrentControlSet\\Services\\DNS");
const TCHAR CONTROL_KEY[] = TEXT("System\\CurrentControlSet\\Control\\");

BOOL IsDNSServerInstalled()
{
  CRegKey regkeyDNSService;
	LONG lRes = regkeyDNSService.Open(HKEY_LOCAL_MACHINE, DNS_KEY);
	return (lRes == ERROR_SUCCESS);
}


////////////////////////////////////////////////////////////////////





STDAPI DllRegisterServer(void)
{
  AFX_MANAGE_STATE(AfxGetStaticModuleState());
	// registers all objects
	HRESULT hr = _Module.RegisterServer(/* bRegTypeLib */ FALSE);
	ASSERT(SUCCEEDED(hr));
	if (FAILED(hr))
  {
    _MSGBOX(_T("_Module.RegisterServer() failed"));
		return hr;
  }

  CString szVersion, szProvider, szSnapinName, szSnapinNameEx;

  szVersion.LoadString(IDS_SNAPIN_VERSION);
  szProvider.LoadString(IDS_SNAPIN_PROVIDER);
  szSnapinName.LoadString(IDS_SNAPIN_NAME);
  szSnapinNameEx.LoadString(IDS_SNAPIN_NAME_EX);

	// register the standalone DNS snapin into the console snapin list
	hr = RegisterSnapin(&CLSID_DNSSnapin,
                      &CDNSRootData::NodeTypeGUID,
                      &CLSID_DNSSnapinAbout,
						szSnapinName, szVersion, szProvider,
            FALSE /*bExtension*/,
						_NodeTypeInfoEntryArray,
            IDS_SNAPIN_NAME);
	ASSERT(SUCCEEDED(hr));
	if (FAILED(hr))
  {
    _MSGBOX(_T("RegisterSnapin(&CLSID_DNSSnapin) failed"));
		return hr;
  }

	// register the extension DNS snapin into the console snapin list
	hr = RegisterSnapin(&CLSID_DNSSnapinEx,
                      &CDNSRootData::NodeTypeGUID,
                      &CLSID_DNSSnapinAboutEx,
						szSnapinNameEx, szVersion, szProvider,
            TRUE /*bExtension*/,
						_NodeTypeInfoEntryArray,
            IDS_SNAPIN_NAME);
	ASSERT(SUCCEEDED(hr));
	if (FAILED(hr))
  {
    _MSGBOX(_T("RegisterSnapin(&CLSID_DNSSnapinEx) failed"));
		return hr;
  }


	// register the snapin nodes into the console node list
	for (_NODE_TYPE_INFO_ENTRY* pCurrEntry = _NodeTypeInfoEntryArray;
			pCurrEntry->m_pNodeGUID != NULL; pCurrEntry++)
	{
		hr = RegisterNodeType(pCurrEntry->m_pNodeGUID,pCurrEntry->m_lpszNodeDescription);
		ASSERT(SUCCEEDED(hr));
		if (FAILED(hr))
    {
      _MSGBOX(_T("RegisterNodeType() failed"));
			return hr;
    }
	}

	// the Services Snapin will extend the Server Node (context menu to start/stop DNS)
	//
	// JonN 9/15/98: Removed the "dynamic" setting.  I don't understand why this was
	// being registered as a dynamic extension.
	hr = RegisterNodeExtension(&CDNSServerNode::NodeTypeGUID, _T("ContextMenu"),
						&CLSID_SystemServiceManagementExt,
						_T("System Service Management Extension"), FALSE /*bDynamic*/);
	if (FAILED(hr))
  {
    _MSGBOX(_T("RegisterNodeExtension(&CDNSServerNode::NodeTypeGUID) failed"));
		return hr;
  }

  //
  // Register the event viewer as a namespace extension of the server node
  //
  hr = RegisterNodeExtension(&CDNSServerNode::NodeTypeGUID, _T("NameSpace"),
                             &CLSID_EventViewerExt, _T("Event Viewer Extension"), FALSE);
  if (FAILED(hr))
  {
    _MSGBOX(_T("RegisterNodeExtension(&CDNSServerNode::NodeTypeGUID) failed"));
		return hr;
  }

  //
  // the DNS Snapin will be a namespace extension for the Server Apps node
  // in the Computer Management Snapin
  //
	//
  // Fixed Bug 13620	DNSMGR: on workstation with AdminPak, dnsmgr.dll should not get loaded
  // 
  OSVERSIONINFOEX verInfoEx;
  verInfoEx.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  if (!::GetVersionEx((OSVERSIONINFO*)&verInfoEx) || verInfoEx.wProductType != VER_NT_WORKSTATION)
  {
	  hr = RegisterNodeExtension(&CLSID_NodeTypeServerApps, _T("NameSpace"),
						  &CLSID_DNSSnapinEx, szSnapinNameEx, TRUE /*bDynamic*/);
	  if (FAILED(hr))
    {
      _MSGBOX(_T("RegisterNodeExtension(&CLSID_NodeTypeServerApps) failed"));
		  return hr;
    }
  }
	return hr;
}

STDAPI DllUnregisterServer(void)
{
	HRESULT hr  = _Module.UnregisterServer();
	ASSERT(SUCCEEDED(hr));

	// un register the standalone snapin
	hr = UnregisterSnapin(&CLSID_DNSSnapin);
	ASSERT(SUCCEEDED(hr));

 	// un register the extension snapin
	hr = UnregisterSnapin(&CLSID_DNSSnapinEx);
	ASSERT(SUCCEEDED(hr));

	// unregister the snapin nodes,
  // this removes also the server node, with the Services Snapin extension keys
	for (_NODE_TYPE_INFO_ENTRY* pCurrEntry = _NodeTypeInfoEntryArray;
			pCurrEntry->m_pNodeGUID != NULL; pCurrEntry++)
	{
		hr = UnregisterNodeType(pCurrEntry->m_pNodeGUID);
		ASSERT(SUCCEEDED(hr));
	}

  // the DNS Snapin will be a namespace extension for the Server Apps node
  // in the Computer Management Snapin
	hr = UnregisterNodeExtension(&CLSID_NodeTypeServerApps, _T("NameSpace"),
						&CLSID_DNSSnapinEx, TRUE /*bDynamic*/);
  ASSERT(SUCCEEDED(hr));

	return S_OK;
}

///////////////////////////////////////////////////////////////////////////////
// CDNSSnapinApp

class CDNSSnapinApp : public CWinApp
{
public:
	virtual BOOL InitInstance();
	virtual int ExitInstance();
};

CDNSSnapinApp theApp;

BOOL CDNSSnapinApp::InitInstance()
{
	_Module.Init(ObjectMap, m_hInstance);
  
  // initialize font for Mask Control
  WCHAR szFontName[LF_FACESIZE];
  int nFontSize;
  VERIFY(LoadFontInfoFromResource(IDS_MASK_CTRL_FONT_NAME,
                            IDS_MASK_CTRL_FONT_SIZE,
                            szFontName, LF_FACESIZE,
                            nFontSize,
                            L"MS Shell Dlg", 8 // default if something goes wrong
                            ));

	if (!DNS_ControlsInitialize(m_hInstance, szFontName, nFontSize))
		return FALSE;

	if (!CDNSComponentDataObject::LoadResources())
		return FALSE;
	return CWinApp::InitInstance();
}

int CDNSSnapinApp::ExitInstance()
{
#ifdef _DEBUG_REFCOUNT
	TRACE(_T("CDNSSnapinApp::ExitInstance()\n"));
	ASSERT(CComponentDataObject::m_nOustandingObjects == 0);
	ASSERT(CComponentObject::m_nOustandingObjects == 0);
	ASSERT(CDataObject::m_nOustandingObjects == 0);
#endif // _DEBUG_REFCOUNT
	_Module.Term();
	return CWinApp::ExitInstance();
}

////////////////////////////////////////////////////////////////////////
// CDNSComponentObject (.i.e "view")


HRESULT CDNSComponentObject::InitializeHeaders(CContainerNode* pContainerNode)
{
  HRESULT hr = S_OK;
  ASSERT(m_pHeader);

  CColumnSet* pColumnSet = pContainerNode->GetColumnSet();
  POSITION pos = pColumnSet->GetHeadPosition();
  while (pos != NULL)
  {
    CColumn* pColumn = pColumnSet->GetNext(pos);

    hr = m_pHeader->InsertColumn(pColumn->GetColumnNum(), 
                                  pColumn->GetHeader(),
								                  pColumn->GetFormat(),
								                  AUTO_WIDTH);
    if (FAILED(hr))
      return hr;

    hr = m_pHeader->SetColumnWidth(pColumn->GetColumnNum(), pColumn->GetWidth());
    if (FAILED(hr))
      return hr;
  }
  return hr;
}

HRESULT CDNSComponentObject::InitializeBitmaps(CTreeNode*)
{
  // image lists for nodes
  CBitmapHolder<IDB_16x16> _bmp16x16;
  CBitmapHolder<IDB_32x32> _bmp32x32;

  HRESULT hr = S_OK;
  BOOL bLoaded = _bmp16x16.LoadBitmap() && _bmp32x32.LoadBitmap();
  if (bLoaded)
  {
    ASSERT(m_pImageResult != NULL);
    hr = m_pImageResult->ImageListSetStrip(reinterpret_cast<LONG_PTR*>(static_cast<HBITMAP>(_bmp16x16)),
                                           reinterpret_cast<LONG_PTR*>(static_cast<HBITMAP>(_bmp32x32)),
                                           0, BMP_COLOR_MASK);
  }
  else
  {
    hr = S_FALSE;
  }
  return hr;
}

CONST INT cButtons = sizeof(g_DNSMGR_SnapinButtons)/sizeof(MMCBUTTON);

HRESULT CDNSComponentObject::InitializeToolbar(IToolbar* pToolbar)
{
  ASSERT(pToolbar != NULL);
  HRESULT hr = S_OK;

  LoadToolbarStrings(g_DNSMGR_SnapinButtons);

  CBitmapHolder<IDB_TOOLBAR_BUTTONS> _bmpToolbarButtons;
  BOOL bLoaded = _bmpToolbarButtons.LoadBitmap();
  if (bLoaded)
  {
    hr = m_pToolbar->AddBitmap(cButtons, (HBITMAP)_bmpToolbarButtons, 16, 16, RGB(255,0,255));
  }
  hr = m_pToolbar->AddButtons(cButtons,  g_DNSMGR_SnapinButtons);

  return hr;
}

HRESULT CDNSComponentObject::LoadToolbarStrings(MMCBUTTON * Buttons)
{
  if (g_astrButtonStrings.m_astr == NULL ) 
  {
    //
    // load strings
    //
    g_astrButtonStrings.m_astr = new CString[2*cButtons];
    for (UINT i = 0; i < cButtons; i++) 
    {
      UINT iButtonTextId = 0, iTooltipTextId = 0;

      switch (Buttons[i].idCommand)
      {
        case toolbarNewServer:
          iButtonTextId = IDS_BUTTON_NEW_SERVER;
          iTooltipTextId = IDS_TOOLTIP_NEW_SERVER;
          break;
        case toolbarNewRecord:
          iButtonTextId = IDS_BUTTON_NEW_RECORD;
          iTooltipTextId = IDS_TOOLTIP_NEW_RECORD;
          break;
        case toolbarNewZone:
          iButtonTextId = IDS_BUTTON_NEW_ZONE;
          iTooltipTextId = IDS_TOOLTIP_NEW_ZONE;
          break;
        default:
          ASSERT(FALSE);
          break;
      }

      g_astrButtonStrings.m_astr[i*2].LoadString(iButtonTextId);
      Buttons[i].lpButtonText =
        const_cast<BSTR>((LPCTSTR)(g_astrButtonStrings.m_astr[i*2]));

      g_astrButtonStrings.m_astr[(i*2)+1].LoadString(iTooltipTextId);
      Buttons[i].lpTooltipText =
        const_cast<BSTR>((LPCTSTR)(g_astrButtonStrings.m_astr[(i*2)+1]));
    }
  }
  return S_OK;
}
////////////////////////////////////////////////////////////////////////
// CDNSComponentDataObjectBase (.i.e "document")

CDNSComponentDataObjectBase::CDNSComponentDataObjectBase()
{
	CWatermarkInfo* pWatermarkInfo = new CWatermarkInfo;
  if (pWatermarkInfo)
  {
	  pWatermarkInfo->m_nIDBanner = IDB_WIZBANNER;
	  pWatermarkInfo->m_nIDWatermark = IDB_WIZWATERMARK;
  }
	SetWatermarkInfo(pWatermarkInfo);

  m_columnSetList.AddTail(new CDNSDefaultColumnSet(L"---Default Column Set---"));
  m_columnSetList.AddTail(new CDNSServerColumnSet(L"---Server Column Set---"));
  m_columnSetList.AddTail(new CDNSZoneColumnSet(L"---Zone Column Set---"));

  SetLogFileName(L"dcpromodns");
}



HRESULT CDNSComponentDataObjectBase::OnSetImages(LPIMAGELIST lpScopeImage)
{
  // image lists for nodes
  CBitmapHolder<IDB_16x16> _bmp16x16;
  CBitmapHolder<IDB_32x32> _bmp32x32;

  BOOL bLoaded = _bmp16x16.LoadBitmap() && _bmp32x32.LoadBitmap();

  HRESULT hr = S_OK;
  if (bLoaded)
  {
    ASSERT(lpScopeImage != NULL);
	  hr = lpScopeImage->ImageListSetStrip(reinterpret_cast<LONG_PTR*>(static_cast<HBITMAP>(_bmp16x16)),
		                                     reinterpret_cast<LONG_PTR*>(static_cast<HBITMAP>(_bmp32x32)),
		                                     0, BMP_COLOR_MASK);
  }
  else
  {
    hr = S_FALSE;
  }
  return hr;
}


CRootData* CDNSComponentDataObjectBase::OnCreateRootData()
{
	CDNSRootData* pDNSRootNode = new CDNSRootData(this);
	AFX_MANAGE_STATE(AfxGetStaticModuleState());
	CString szSnapinType;
	szSnapinType.LoadString(IDS_SNAPIN_NAME);
	pDNSRootNode->SetDisplayName(szSnapinType);
	return pDNSRootNode;
}

BOOL CDNSComponentDataObjectBase::LoadResources()
{
  return 
	       LoadContextMenuResources(CDNSRootDataMenuHolder::GetMenuMap()) &&
	       LoadContextMenuResources(CDNSServerMenuHolder::GetMenuMap()) &&
	       LoadContextMenuResources(CDNSCathegoryFolderHolder::GetMenuMap()) &&
	       LoadContextMenuResources(CDNSAuthoritatedZonesMenuHolder::GetMenuMap()) &&
         LoadContextMenuResources(CDNSCacheMenuHolder::GetMenuMap()) &&
	       LoadContextMenuResources(CDNSZoneMenuHolder::GetMenuMap()) &&
	       LoadContextMenuResources(CDNSDomainMenuHolder::GetMenuMap()) &&
         LoadContextMenuResources(CDNSRecordMenuHolder::GetMenuMap()) &&
 	       LoadResultHeaderResources(_DefaultHeaderStrings,N_DEFAULT_HEADER_COLS) &&
         LoadResultHeaderResources(_ServerHeaderStrings,N_SERVER_HEADER_COLS) &&
         LoadResultHeaderResources(_ZoneHeaderStrings,N_ZONE_HEADER_COLS) &&
         LoadZoneTypeResources(_ZoneTypeStrings, N_ZONE_TYPES) &&
	       CDNSRecordInfo::LoadResources();
}


STDMETHODIMP CDNSComponentDataObjectBase::CreateComponent(LPCOMPONENT* ppComponent)
{
    ASSERT(ppComponent != NULL);

    CComObject<CDNSComponentObject>* pObject;
    CComObject<CDNSComponentObject>::CreateInstance(&pObject);
    ASSERT(pObject != NULL);

    // Store IComponentData
    pObject->SetIComponentData(this);

    return  pObject->QueryInterface(IID_IComponent,
                    reinterpret_cast<void**>(ppComponent));
}


void CDNSComponentDataObjectBase::OnTimer()
{
	CDNSRootData* pDNSRootData = (CDNSRootData*)GetRootData();
	pDNSRootData->TestServers(m_dwTimerTime, GetTimerInterval(), this);
	m_dwTimerTime += GetTimerInterval();
}

void CDNSComponentDataObjectBase::OnTimerThread(WPARAM wParam, LPARAM lParam)
{
	CDNSRootData* pDNSRootData = (CDNSRootData*)GetRootData();
	pDNSRootData->OnServerTestData(wParam,lParam, this);
}

CTimerThread* CDNSComponentDataObjectBase::OnCreateTimerThread()
{
	return new CDNSServerTestTimerThread;
}



void CDNSComponentDataObjectBase::OnNodeContextHelp(CNodeList* pNodeList)
{
  ASSERT(pNodeList != NULL);

  CComPtr<IDisplayHelp> spHelp;
  HRESULT hr = GetConsole()->QueryInterface(IID_IDisplayHelp, (void **)&spHelp);
  if (SUCCEEDED(hr)) 
    spHelp->ShowTopic(L"DNSconcepts.chm::/sag_DNStopnode.htm");

/*
  CString szNode;

  if (IS_CLASS(*pNode, CDNSRootData))
  {
    szNode = _T("Root Node");
  }
  else if (IS_CLASS(*pNode, CDNSServerNode))
  {
    szNode = _T("Server Node");
  }
  else if (IS_CLASS(*pNode, CDNSForwardZonesNode))
  {
    szNode = _T("Forward Zones Node");
  }
  else if (IS_CLASS(*pNode, CDNSReverseZonesNode))
  {
    szNode = _T("Reverse Zones Node");
  }
  else if (IS_CLASS(*pNode, CDNSZoneNode))
  {
    szNode = _T("Zone Node");
  }
  else if (IS_CLASS(*pNode, CDNSDomainNode))
  {
    szNode = _T("Domain Node");
  }
  else if (IS_CLASS(*pNode, CDNSCacheNode))
  {
    szNode = _T("Domain Node");
  }
  else if (dynamic_cast<CDNSRecordNodeBase*>(pNode) != NULL)
  {
    szNode = _T("Record Node");
  }

  if (!szNode.IsEmpty())
  {
    CString szMsg = _T("Context Help on ");
    szMsg += szNode;
    AFX_MANAGE_STATE(AfxGetStaticModuleState());
    AfxMessageBox(szMsg);
  }
*/
}

LPCWSTR g_szContextHelpFileName = L"\\help\\dnsmgr.hlp";
LPCWSTR g_szHTMLHelpFileName = L"\\help\\dnsmgr.chm";

LPCWSTR CDNSComponentDataObjectBase::GetHTMLHelpFileName()
{
  return g_szHTMLHelpFileName;
}

void CDNSComponentDataObjectBase::OnDialogContextHelp(UINT nDialogID, HELPINFO* pHelpInfo)
{
	ULONG nContextTopic;
  if (FindDialogContextTopic(nDialogID, pHelpInfo, &nContextTopic))
	  WinHelp(g_szContextHelpFileName, HELP_CONTEXTPOPUP, nContextTopic);
}

////////////////////////////////////////////////////////////////////////////////
// help context macros and maps

#define BEGIN_HELP_MAP(map)	static DWORD_PTR map[] = {
#define HELP_MAP_ENTRY(x)	x, (DWORD_PTR)&g_aHelpIDs_##x ,
#define END_HELP_MAP		 0, 0 };


#define NEXT_HELP_MAP_ENTRY(p) ((p)+2)
#define MAP_ENTRY_DLG_ID(p) (*p)
#define MAP_ENTRY_TABLE(p) ((DWORD*)(*(p+1)))
#define IS_LAST_MAP_ENTRY(p) (MAP_ENTRY_DLG_ID(p) == 0)

#define NEXT_HELP_TABLE_ENTRY(p) ((p)+2)
#define TABLE_ENTRY_CTRL_ID(p) (*p)
#define TABLE_ENTRY_HELP_ID(p) (*(p+1))
#define IS_LAST_TABLE_ENTRY(p) (TABLE_ENTRY_CTRL_ID(p) == 0)

BEGIN_HELP_MAP(_DNSMgrContextHelpMap)
  // misc dialogs
  HELP_MAP_ENTRY(IDD_CHOOSER_CHOOSE_MACHINE)
  HELP_MAP_ENTRY(IDD_BROWSE_DIALOG)
  HELP_MAP_ENTRY(IDD_FILTERING_LIMITS)
  HELP_MAP_ENTRY(IDD_FILTERING_NAME)

  // misc. add dialogs
  HELP_MAP_ENTRY(IDD_DOMAIN_ADDNEWHOST) // TODO
  HELP_MAP_ENTRY(IDD_DOMAIN_ADDNEWDOMAIN)// TODO
  HELP_MAP_ENTRY(IDD_SELECT_RECORD_TYPE_DIALOG)

  // name servers page, there are more than one
  HELP_MAP_ENTRY(IDD_NAME_SERVERS_PAGE)
  HELP_MAP_ENTRY(IDD_COPY_ROOTHINTS_DIALOG)

  // server property pages
  HELP_MAP_ENTRY(IDD_SERVER_INTERFACES_PAGE)
  HELP_MAP_ENTRY(IDD_SERVER_DOMAIN_FORWARDERS_PAGE)
  HELP_MAP_ENTRY(IDD_SERVER_NEW_DOMAIN_FORWARDER)
  HELP_MAP_ENTRY(IDD_SERVER_ADVANCED_PAGE)
  HELP_MAP_ENTRY(IDD_SERVER_DEBUG_LOGGING_PAGE)
  HELP_MAP_ENTRY(IDD_IP_FILTER_DIALOG)
  HELP_MAP_ENTRY(IDD_SERVER_EVENT_LOGGING_PAGE)
  HELP_MAP_ENTRY(IDD_SERVMON_TEST_PAGE)
  HELP_MAP_ENTRY(IDD_SERVER_AGING_DIALOG)

  // zone property pages
#ifdef USE_NDNC
  HELP_MAP_ENTRY(IDD_ZONE_GENERAL_PAGE_NDNC)
  HELP_MAP_ENTRY(IDD_ZONE_GENERAL_CHANGE_REPLICATION)
#else
  HELP_MAP_ENTRY(IDD_ZONE_GENERAL_PAGE)
#endif // USE_NDNC
  HELP_MAP_ENTRY(IDD_ZONE_GENERAL_CHANGE_TYPE)
  HELP_MAP_ENTRY(IDD_ZONE_WINS_PAGE)
  HELP_MAP_ENTRY(IDD_ZONE_NBSTAT_PAGE)
  HELP_MAP_ENTRY(IDD_ZONE_ZONE_TRANSFER_PAGE)
  HELP_MAP_ENTRY(IDD_ZONE_WINS_ADVANCED) // this is a subdialog
  HELP_MAP_ENTRY(IDD_ZONE_NOTIFY_SUBDIALOG) // this is a subdialog
  HELP_MAP_ENTRY(IDD_ZONE_AGING_DIALOG)

  // record property pages
  HELP_MAP_ENTRY(IDD_RR_NS_EDIT)
  HELP_MAP_ENTRY(IDD_RR_SOA)
  HELP_MAP_ENTRY(IDD_RR_A)
  HELP_MAP_ENTRY(IDD_RR_ATMA)
  HELP_MAP_ENTRY(IDD_RR_CNAME)
  HELP_MAP_ENTRY(IDD_RR_MX)
  HELP_MAP_ENTRY(IDD_RR_UNK)
  HELP_MAP_ENTRY(IDD_RR_TXT)
  HELP_MAP_ENTRY(IDD_RR_X25)
  HELP_MAP_ENTRY(IDD_RR_ISDN)
  HELP_MAP_ENTRY(IDD_RR_HINFO)
  HELP_MAP_ENTRY(IDD_RR_AAAA)
  HELP_MAP_ENTRY(IDD_RR_MB)
  HELP_MAP_ENTRY(IDD_RR_MG)
  HELP_MAP_ENTRY(IDD_RR_MD)
  HELP_MAP_ENTRY(IDD_RR_MF)
  HELP_MAP_ENTRY(IDD_RR_MR)
  HELP_MAP_ENTRY(IDD_RR_MINFO)
  HELP_MAP_ENTRY(IDD_RR_RP)
  HELP_MAP_ENTRY(IDD_RR_RT)
  HELP_MAP_ENTRY(IDD_RR_AFSDB)
  HELP_MAP_ENTRY(IDD_RR_WKS)
  HELP_MAP_ENTRY(IDD_RR_PTR)
  HELP_MAP_ENTRY(IDD_RR_SRV)
  HELP_MAP_ENTRY(IDD_RR_KEY)
  HELP_MAP_ENTRY(IDD_RR_SIG)
  HELP_MAP_ENTRY(IDD_RR_NXT)
END_HELP_MAP



BOOL CDNSComponentDataObjectBase::FindDialogContextTopic(/*IN*/UINT nDialogID,
                                              /*IN*/ HELPINFO* pHelpInfo,
                                              /*OUT*/ ULONG* pnContextTopic)
{
	ASSERT(pHelpInfo != NULL);
    *pnContextTopic = 0;
	const DWORD_PTR* pMapEntry = _DNSMgrContextHelpMap;
	while (!IS_LAST_MAP_ENTRY(pMapEntry))
	{
		if (nDialogID == MAP_ENTRY_DLG_ID(pMapEntry))
		{
			DWORD* pTable = MAP_ENTRY_TABLE(pMapEntry);
			// look inside the table
			while (!IS_LAST_TABLE_ENTRY(pTable))
			{
				if (TABLE_ENTRY_CTRL_ID(pTable) == static_cast<UINT>(pHelpInfo->iCtrlId))
        {
					*pnContextTopic = TABLE_ENTRY_HELP_ID(pTable);
          return TRUE;
        }
				pTable = NEXT_HELP_TABLE_ENTRY(pTable);
			}
		}
		pMapEntry = NEXT_HELP_MAP_ENTRY(pMapEntry);
	}
	return FALSE;
}

////////////////////////////////////////////////////////////////////////
// CDNSComponentDataObjectEx (.i.e "document")
// extension snapin


unsigned int g_CFMachineName =
	RegisterClipboardFormat(L"MMC_SNAPIN_MACHINE_NAME");


LPWSTR ExtractMachineName(LPDATAOBJECT lpDataObject)
{
    ASSERT(lpDataObject != NULL);

    STGMEDIUM stgmedium = { TYMED_HGLOBAL, NULL };
	FORMATETC formatetc = { (CLIPFORMAT)g_CFMachineName, NULL,
                            DVASPECT_CONTENT, -1, TYMED_HGLOBAL
                          };

    // Allocate memory for the stream
    stgmedium.hGlobal = GlobalAlloc(GMEM_SHARE, 512);

	LPWSTR pwszMachineName = NULL;
    // Attempt to get data from the object
    do
	{
		if (stgmedium.hGlobal == NULL)
			break;

		if (FAILED(lpDataObject->GetDataHere(&formatetc, &stgmedium)))
			break;
		
        pwszMachineName = reinterpret_cast<LPWSTR>(stgmedium.hGlobal);

   		if (pwszMachineName == NULL)
			break;

	} while (FALSE);

    return pwszMachineName;
}




HRESULT CDNSComponentDataObjectEx::OnExtensionExpand(LPDATAOBJECT lpDataObject, LPARAM param)
{
	// this is a namespace extension, need to add
	// the root of the snapin

	AFX_MANAGE_STATE(AfxGetStaticModuleState());

	// NOTICE: the name of the root node is already set in the constructor

	// insert the root node in the console
	CDNSRootData* pDNSRootNode = (CDNSRootData*)GetRootData();
	HSCOPEITEM pParent = param;
	pDNSRootNode->SetScopeID(pParent);
	HRESULT hr = AddContainerNode(pDNSRootNode, pParent);
	if (FAILED(hr))
		return hr;

  BOOL bLocalHost = FALSE;
  if (!pDNSRootNode->IsEnumerated())
  {
   	// get information from the data object
	  LPWSTR pwszMachineName = ExtractMachineName(lpDataObject);
	  if ( (pwszMachineName == NULL) || (pwszMachineName[0] == NULL) )
	  {		
		  if (pwszMachineName != NULL)
			  ::GlobalFree((void*)pwszMachineName);
		  DWORD dwCharLen = MAX_COMPUTERNAME_LENGTH+1;
		  pwszMachineName = (LPWSTR)GlobalAlloc(GMEM_SHARE, sizeof(WCHAR)*dwCharLen);
      if (pwszMachineName)
      {
		    BOOL bRes = ::GetComputerName(pwszMachineName, &dwCharLen);
		    ASSERT(dwCharLen <= MAX_COMPUTERNAME_LENGTH);
		    if (!bRes)
        {
			    wcscpy(pwszMachineName, _T("localhost."));
        }
        bLocalHost = TRUE;
      }
	  }

	  // add a new server node with the server name from the data object
	  CDNSServerNode* pDNSServerNode = new CDNSServerNode(pwszMachineName, bLocalHost);
	  FREE_INTERNAL((void*)pwszMachineName);
    VERIFY(pDNSRootNode->AddChildToList(pDNSServerNode));
	  pDNSRootNode->AddServerToThreadList(pDNSServerNode, this);

    pDNSRootNode->MarkEnumerated();
  }
	return hr;
}


HRESULT CDNSComponentDataObjectEx::OnRemoveChildren(LPDATAOBJECT, LPARAM)
{
  ASSERT(IsExtensionSnapin());

  CDNSRootData* pDNSRootNode = (CDNSRootData*)GetRootData();
	CNodeList* pChildList = pDNSRootNode->GetContainerChildList();
	ASSERT(pChildList != NULL);

  // loop through thelist of servers and remove them from
  // the test list
	for(POSITION pos = pChildList->GetHeadPosition(); pos != NULL; )
	{
    CDNSServerNode* pCurrServerNode = (CDNSServerNode*)pChildList->GetNext(pos);
		ASSERT(pCurrServerNode != NULL);
    pDNSRootNode->RemoveServerFromThreadList(pCurrServerNode, this);
  }

  // detach all the threads that might be still running
	GetRunningThreadTable()->RemoveAll();

  // shut down property sheets, if any
	GetPropertyPageHolderTable()->WaitForAllToShutDown();

  // remove all the children of the root from chaild list
  pDNSRootNode->RemoveAllChildrenFromList();

  pDNSRootNode->MarkEnumerated(FALSE);
	return S_OK;
}


//////////////////////////////////////////////////////////////////////////
// CDNSSnapinAbout

CDNSSnapinAbout::CDNSSnapinAbout()
{
  m_uIdStrProvider = IDS_SNAPIN_PROVIDER;
	m_uIdStrVersion = IDS_SNAPIN_VERSION;
	m_uIdStrDestription = IDS_SNAPINABOUT_DESCRIPTION;
	m_uIdIconImage = IDI_DNS_SNAPIN;
	m_uIdBitmapSmallImage = IDB_ABOUT_16x16;
	m_uIdBitmapSmallImageOpen = IDB_ABOUT_OPEN_16x16;
	m_uIdBitmapLargeImage = IDB_ABOUT_32x32;
	m_crImageMask = BMP_COLOR_MASK;
}


//////////////////////////////////////////////////////////////////////////
// CDNSSnapinAboutEx

CDNSSnapinAboutEx::CDNSSnapinAboutEx()
{
  m_uIdStrProvider = IDS_SNAPIN_PROVIDER;
	m_uIdStrVersion = IDS_SNAPIN_VERSION;
	m_uIdStrDestription = IDS_SNAPINABOUT_DESCRIPTION;
	m_uIdIconImage = IDI_DNS_SNAPIN;
	m_uIdBitmapSmallImage = IDB_16x16;
	m_uIdBitmapSmallImageOpen = IDB_16x16;
	m_uIdBitmapLargeImage = IDB_32x32;
	m_crImageMask = BMP_COLOR_MASK;
}