windows-server-2003/admin/dsutils/migrate/clonepr/dllmain.cpp

// Copyright (C) 1999 Microsoft Corporation
//
// DllMain and COM DllXxx functions
//
// sburns 5-3-99



#include "headers.hxx"
#include "implmain.hpp"



HINSTANCE hResourceModuleHandle = 0;
const wchar_t* HELPFILE_NAME = 0;
const wchar_t* RUNTIME_NAME = L"clonepr";

DWORD DEFAULT_LOGGING_OPTIONS = OUTPUT_MUTE;

TCHAR   g_szFileName[MAX_PATH];


struct REG_DATA
{
    const wchar_t *keyName;
    const wchar_t *valueName;
    const wchar_t *value;
};



const REG_DATA g_rgEntries[] =
{
   {
      L"CLSID\\" CLSID_STRING,
      0,
      CLASSNAME_STRING
   },
   { 
      L"CLSID\\" CLSID_STRING L"\\InprocServer32",
      0,
      g_szFileName
   },
   { 
      L"CLSID\\" CLSID_STRING L"\\InprocServer32",
      L"ThreadingModel",
      L"Apartment"
   },
   {
      L"CLSID\\" CLSID_STRING L"\\ProgID",
      0,
      PROGID_VERSION_STRING
   },
   {
      L"CLSID\\" CLSID_STRING L"\\VersionIndependentProgID",
      0,
      PROGID_STRING
   },
   {
      PROGID_VERSION_STRING,
      0,
      CLASSNAME_STRING
   },
   {
      PROGID_VERSION_STRING L"\\CLSID",
      0,
      CLSID_STRING
   },
   {
      PROGID_STRING,
      0,
      CLASSNAME_STRING
   },
   {
      PROGID_STRING L"\\CLSID",
      0,
      CLSID_STRING
   },
   {
      PROGID_STRING L"\\CurVer",
      0,
      PROGID_VERSION_STRING
   },

   // register for IADsSID
   {
      PROGID_VERSION_STRING_ADSSID,
      0,
      CLASSNAME_STRING
   },
   {
      PROGID_VERSION_STRING_ADSSID L"\\CLSID",
      0,
      CLSID_STRING
   },
   {
      PROGID_STRING_ADSSID,
      0,
      CLASSNAME_STRING
   },
   {
      PROGID_STRING_ADSSID L"\\CLSID",
      0,
      CLSID_STRING
   },
   {
      PROGID_STRING_ADSSID L"\\CurVer",
      0,
      PROGID_VERSION_STRING_ADSSID
   },

   // register for IADsError
   {
      PROGID_VERSION_STRING_ADSERROR,
      0,
      CLASSNAME_STRING
   },
   {
      PROGID_VERSION_STRING_ADSERROR L"\\CLSID",
      0,
      CLSID_STRING
   },
   {
      PROGID_STRING_ADSERROR,
      0,
      CLASSNAME_STRING
   },
   {
      PROGID_STRING_ADSERROR L"\\CLSID",
      0,
      CLSID_STRING
   },
   {
      PROGID_STRING_ADSERROR L"\\CurVer",
      0,
      PROGID_VERSION_STRING_ADSERROR
   }
};

const int g_cEntries = sizeof(g_rgEntries)/sizeof(*g_rgEntries);

static
HRESULT
Unregister(const REG_DATA *rgEntries, int cEntries)
{
   LOG_FUNCTION(Unregister);

   LOG(L"Calling UnRegisterTypeLib");

   HRESULT hr =
      ::UnRegisterTypeLib(LIBID_CloneSecurityPrincipalLib, 1, 0, 0, SYS_WIN32);

   LOG_HRESULT(hr);

   // don't break: continue on attempting to remove as much as possible
   // of our registration

   bool success = SUCCEEDED(hr);
   for (int i = cEntries - 1; i >= 0; i--)
   {
      LONG err = ::RegDeleteKey(HKEY_CLASSES_ROOT, rgEntries[i].keyName);
      if (err != ERROR_SUCCESS)
      {
         success = false;
      }
   }

   return success ? S_OK : S_FALSE;
}



static HRESULT Register(const REG_DATA *rgEntries, int cEntries)
{

   BOOL bSuccess = TRUE;
   HRESULT hr = S_OK;   // 447822 prefix warning
   const REG_DATA *pEntry = rgEntries;

    while (pEntry < rgEntries + cEntries)
    {
        HKEY hkey;
        LONG err = RegCreateKey(HKEY_CLASSES_ROOT,
                                pEntry->keyName,
                               &hkey);
        if (err == ERROR_SUCCESS)
        {
            if (pEntry->value)
                err = RegSetValueEx(hkey, 
                                pEntry->valueName,
                                0, REG_SZ, 
                                (const BYTE*)pEntry->value,
                                (lstrlen(pEntry->value) + 1) * sizeof(TCHAR));
            if (err != ERROR_SUCCESS)
            {
                bSuccess = FALSE;
                Unregister(rgEntries, static_cast<int>(1 + pEntry - rgEntries));
            }
            RegCloseKey(hkey);
        }
        if (err != ERROR_SUCCESS)
        {
            bSuccess = FALSE;
            if (pEntry != rgEntries)
                Unregister(rgEntries, static_cast<int>(pEntry - rgEntries));
        }
        pEntry++;
    };

   if (bSuccess)
	{
      OLECHAR g_wszFileName[MAX_PATH];

      // ISSUE-2002/03/06-sburns consider strsafe function
      
      lstrcpy(g_wszFileName, g_szFileName);     
		ITypeLib *ptl = 0;
		hr = LoadTypeLib(g_wszFileName, &ptl);
		if (SUCCEEDED(hr))
		{
			hr = RegisterTypeLib(ptl, g_wszFileName, 0);
			ptl->Release();
		}

		if (bSuccess)
			hr = S_OK;
		else
			hr = E_FAIL;
	}

    return hr ;//bSuccess ? S_OK : E_FAIL;
}



BOOL
APIENTRY
DllMain(HINSTANCE h, DWORD dwReason, void *)
{
   switch (dwReason)
   {
      case DLL_PROCESS_ATTACH:
      {
         hResourceModuleHandle = h;

         LOG(L"DLL_PROCESS_ATTACH");

// @@ remove this 
        GetModuleFileName(h, g_szFileName, MAX_PATH);



         break;
      }
      case DLL_PROCESS_DETACH:
      {

#ifdef DEBUG_BUILD
         LOG(TEXT("DLL_PROCESS_DETACH"));
         if (!ComServerLockState::CanUnloadNow())
         {
            LOG(L"server locks and/or outstanding object instances exit");
         }
         else
         {
            LOG(L"server can unload now.");
         }
#endif

         break;
      }
      case DLL_THREAD_ATTACH:
      case DLL_THREAD_DETACH:
      default:
      {
         break;
      }
   }

   return TRUE;
}



STDAPI
DllRegisterServer()
{
   LOG_FUNCTION(DllRegisterServer);

   return Register(g_rgEntries, g_cEntries);
}



STDAPI
DllUnregisterServer()
{
   LOG_FUNCTION(DllUnregisterServer);

   return Unregister(g_rgEntries, g_cEntries);
}



STDAPI
DllCanUnloadNow()
{
   LOG_FUNCTION(DllCanUnloadNow);

   if (ComServerLockState::CanUnloadNow())
   {
      return S_OK;
   }

   return S_FALSE;
}


STDAPI
DllGetClassObject(
   const CLSID&   classID,
   const IID&     interfaceID,
   void**         interfaceDesired)
{
   LOG_FUNCTION(DllGetClassObject);

   IClassFactory* factory = 0;

   // The class objects are instances of ClassFactory<>, which are ref-counted
   // in the usual fashion (i.e. they track their ref counts, and
   // self-destruct on final Release).  I could have used static instances of
   // a C++ class that ignored the refcounting (ala Don Box's examples in
   // Essential COM)

   if (classID == CLSID_CloneSecurityPrincipal)
   {
      factory = new ClassFactory<CloneSecurityPrincipal>;
   }
   else
   {
      *interfaceDesired = 0;
      return CLASS_E_CLASSNOTAVAILABLE;
   }

   // the class factory instance starts with a ref count of 1.  If the QI
   // fails, then it self-destructs upon Release.
   HRESULT hr = factory->QueryInterface(interfaceID, interfaceDesired);
   factory->Release();
   return hr;
}