You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
492 lines
11 KiB
492 lines
11 KiB
/*++
|
|
|
|
Copyright (C) Microsoft Corporation, 1998 - 1999
|
|
|
|
Module Name:
|
|
|
|
noncom
|
|
|
|
Abstract:
|
|
|
|
This module provides a means to bypass COM, such that typical in-process
|
|
COM objects can be called directly in any operating system.
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/4/1999
|
|
|
|
Notes:
|
|
|
|
?Notes?
|
|
|
|
--*/
|
|
|
|
#ifndef WIN32_LEAN_AND_MEAN
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#endif
|
|
#include <windows.h>
|
|
#include "scardlib.h"
|
|
#include <ole2.h>
|
|
#include <unknwn.h>
|
|
#include "noncom.h"
|
|
|
|
typedef HRESULT
|
|
(STDAPICALLTYPE *GetClassObjectFunc)(
|
|
REFCLSID rclsid,
|
|
REFIID riid,
|
|
LPVOID * ppv);
|
|
|
|
|
|
#ifdef UNDER_TEST
|
|
|
|
typedef struct {
|
|
IID iid;
|
|
HINSTANCE hDll;
|
|
GetClassObjectFunc pgco;
|
|
} NonComModuleStruct;
|
|
|
|
class NonComControlStruct
|
|
{
|
|
public:
|
|
DWORD dwInitializeCount;
|
|
CRITICAL_SECTION csLock;
|
|
CDynamicArray<NonComModuleStruct> rgModules;
|
|
};
|
|
|
|
static NonComControlStruct *l_pControl = NULL;
|
|
|
|
|
|
/*++
|
|
|
|
NoCoInitialize:
|
|
|
|
This function initializes the NonCOM subsystem.
|
|
|
|
Arguments:
|
|
|
|
pvReserved - [in] Reserved; must be NULL.
|
|
|
|
Return Value:
|
|
|
|
S_OK - The NonCOM subsystem was initialized correctly.
|
|
S_FALSE - The NonCOM library is already initialized.
|
|
|
|
Remarks:
|
|
|
|
?Remarks?
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/4/1999
|
|
|
|
--*/
|
|
|
|
STDAPI
|
|
NoCoInitialize(
|
|
LPVOID pvReserved)
|
|
{
|
|
HRESULT hReturn = E_UNEXPECTED;
|
|
|
|
|
|
//
|
|
// Validate parameters.
|
|
//
|
|
|
|
if (NULL != pvReserved)
|
|
{
|
|
hReturn = E_INVALIDARG;
|
|
goto ErrorExit;
|
|
}
|
|
|
|
|
|
//
|
|
// Create the Control structure, if necessary.
|
|
//
|
|
|
|
if (NULL == l_pControl)
|
|
{
|
|
l_pControl = new NonComControlStruct;
|
|
if (NULL == l_pControl)
|
|
{
|
|
hReturn = E_OUTOFMEMORY;
|
|
goto ErrorExit;
|
|
}
|
|
InitializeCriticalSection(&l_pControl->csLock);
|
|
CCritSect csLock(&l_pControl->csLock);
|
|
// ?code? Database initialization
|
|
l_pControl->dwInitializeCount = 1;
|
|
}
|
|
else
|
|
{
|
|
CCritSect csLock(&l_pControl->csLock);
|
|
ASSERT(0 < l_pControl->dwInitializeCount);
|
|
l_pControl->dwInitializeCount += 1;
|
|
}
|
|
return S_OK;
|
|
|
|
ErrorExit:
|
|
return hReturn;
|
|
}
|
|
|
|
|
|
/*++
|
|
|
|
NoCoUninitialize:
|
|
|
|
Closes the NonCOM library on the current apartment, unloads all DLLs
|
|
loaded by the apartment, frees any other resources that the apartment
|
|
maintains, and forces all RPC connections on the apartment to close.
|
|
|
|
Arguments:
|
|
|
|
None
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
Remarks:
|
|
|
|
?Remarks?
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/4/1999
|
|
|
|
--*/
|
|
|
|
STDAPI_(void)
|
|
NoCoUninitialize(
|
|
void)
|
|
{
|
|
DWORD dwI;
|
|
NonComModuleStruct *pMod;
|
|
|
|
if (NULL != l_pControl)
|
|
{
|
|
{
|
|
CCritSect csLock(&l_pControl->csLock);
|
|
ASSERT(0 < l_pControl->dwInitializeCount);
|
|
l_pControl->dwInitializeCount -= 1;
|
|
if (0 == l_pControl->dwInitializeCount)
|
|
{
|
|
for (dwI = l_pControl->rgModules.Count(); 0 < dwI;)
|
|
{
|
|
pMod = l_pControl->rgModules[--dwI];
|
|
FreeLibrary(pMod->hDll);
|
|
delete pMod;
|
|
}
|
|
l_pControl->rgModules.Clear();
|
|
}
|
|
}
|
|
DeleteCriticalSection(&l_pControl->csLock);
|
|
delete l_pControl;
|
|
l_pControl = NULL;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
/*++
|
|
|
|
NoCoGetClassObject:
|
|
|
|
Provides a pointer to an interface on a class object associated with a
|
|
specified CLSID. CoGetClassObject locates, and if necessary, dynamically
|
|
loads the executable code required to do this.
|
|
|
|
Arguments:
|
|
|
|
rclsid - [in] CLSID associated with the data and code that you will use to
|
|
create the objects.
|
|
|
|
riid - [in] Reference to the identifier of the interface, which will be
|
|
supplied in ppv on successful return. This interface will be used to
|
|
communicate with the class object.
|
|
|
|
ppv - [out] Address of pointer variable that receives the interface
|
|
pointer requested in riid. Upon successful return, *ppv contains the
|
|
requested interface pointer.
|
|
|
|
Return Value:
|
|
|
|
S_OK - Location and connection to the specified class object was successful.
|
|
|
|
REGDB_E_CLASSNOTREG - CLSID is not properly registered. Can also indicate
|
|
that the value you specified in dwClsContext is not in the registry.
|
|
|
|
E_NOINTERFACE - Either the object pointed to by ppv does not support the
|
|
interface identified by riid, or the QueryInterface operation on the
|
|
class object returned E_NOINTERFACE.
|
|
|
|
REGDB_E_READREGDB - Error reading the registration database.
|
|
|
|
CO_E_DLLNOTFOUND - In-process DLL not found.
|
|
|
|
E_ACCESSDENIED - General access failure.
|
|
|
|
Remarks:
|
|
|
|
?Remarks?
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/4/1999
|
|
|
|
--*/
|
|
|
|
STDAPI
|
|
NoCoGetClassObject(
|
|
REFCLSID rclsid,
|
|
REFIID riid,
|
|
LPVOID * ppv)
|
|
{
|
|
DWORD dwStatus;
|
|
HRESULT hReturn = E_UNEXPECTED;
|
|
TCHAR szGuid[40];
|
|
CBuffer szDll;
|
|
HINSTANCE hDll = NULL;
|
|
GetClassObjectFunc pfGetObject;
|
|
|
|
#ifdef UNDER_TEST
|
|
if (NULL == l_pControl)
|
|
{
|
|
hReturn = NoCoInitialize(NULL);
|
|
if (S_OK != hReturn)
|
|
goto ErrorExit;
|
|
}
|
|
|
|
{
|
|
DWORD dwI;
|
|
CCritSect(&l_pControl->csLock);
|
|
|
|
for (dwI = l_pControl->rgModules.Count(); 0 < dwI;)
|
|
{
|
|
dwI -= 1;
|
|
if (IsEqualGUID(l_pControl->rgModules[dwI]->iid, rclsid))
|
|
{
|
|
try
|
|
{
|
|
hReturn = (*l_pControl->rgModules[dwI]->pgco)(rclsid, riid, ppv);
|
|
}
|
|
catch (...)
|
|
{
|
|
hReturn = E_UNEXPECTED;
|
|
}
|
|
goto ErrorExit;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
StringFromGuid(&rclsid, szGuid);
|
|
|
|
try
|
|
{
|
|
|
|
//
|
|
// Open the Class Registry Database.
|
|
//
|
|
|
|
CRegistry regClsId(
|
|
HKEY_CLASSES_ROOT,
|
|
TEXT("ClsID"),
|
|
KEY_READ);
|
|
dwStatus = regClsId.Status(TRUE);
|
|
if (ERROR_SUCCESS != dwStatus)
|
|
{
|
|
hReturn = REGDB_E_READREGDB;
|
|
goto ErrorExit;
|
|
}
|
|
|
|
|
|
//
|
|
// Look up the specified Class.
|
|
//
|
|
|
|
CRegistry regClass(
|
|
regClsId,
|
|
szGuid,
|
|
KEY_READ);
|
|
dwStatus = regClass.Status(TRUE);
|
|
if (ERROR_SUCCESS != dwStatus)
|
|
{
|
|
hReturn = REGDB_E_CLASSNOTREG;
|
|
goto ErrorExit;
|
|
}
|
|
|
|
|
|
//
|
|
// Get the registered InProcess Server.
|
|
//
|
|
|
|
CRegistry regServer(
|
|
regClass,
|
|
TEXT("InprocServer32"),
|
|
KEY_READ);
|
|
dwStatus = regServer.Status(TRUE);
|
|
if (ERROR_SUCCESS != dwStatus)
|
|
{
|
|
hReturn = REGDB_E_CLASSNOTREG;
|
|
goto ErrorExit;
|
|
}
|
|
|
|
|
|
//
|
|
// Get the handler DLL name.
|
|
//
|
|
|
|
regServer.GetValue(TEXT(""), szDll);
|
|
}
|
|
catch (DWORD dwError)
|
|
{
|
|
switch (dwError)
|
|
{
|
|
case ERROR_OUTOFMEMORY:
|
|
hReturn = E_OUTOFMEMORY;
|
|
break;
|
|
default:
|
|
hReturn = HRESULT_FROM_WIN32(dwError);
|
|
}
|
|
goto ErrorExit;
|
|
}
|
|
|
|
|
|
//
|
|
// We've got the target DLL. Load it and look for the entrypoint.
|
|
//
|
|
|
|
hDll = LoadLibrary((LPCTSTR)szDll.Access());
|
|
if (NULL == hDll)
|
|
{
|
|
hReturn = CO_E_DLLNOTFOUND;
|
|
goto ErrorExit;
|
|
}
|
|
pfGetObject = (GetClassObjectFunc)GetProcAddress(
|
|
hDll,
|
|
"DllGetClassObject");
|
|
if (NULL == pfGetObject)
|
|
{
|
|
hReturn = E_NOINTERFACE;
|
|
goto ErrorExit;
|
|
}
|
|
|
|
#ifdef UNDER_TEST
|
|
{
|
|
NonComModuleStruct *pMod = new NonComModuleStruct;
|
|
|
|
if (NULL == pMod)
|
|
{
|
|
hReturn = E_OUTOFMEMORY;
|
|
goto ErrorExit;
|
|
}
|
|
|
|
pMod->hDll = hDll;
|
|
CopyMemory(&pMod->iid, &rclsid, sizeof(IID));
|
|
pMod->pgco = pfGetObject;
|
|
try
|
|
{
|
|
l_pControl->rgModules.Add(pMod);
|
|
}
|
|
catch (...)
|
|
{
|
|
delete pMod;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
try
|
|
{
|
|
hReturn = (*pfGetObject)(rclsid, riid, ppv);
|
|
}
|
|
catch (...)
|
|
{
|
|
hReturn = E_UNEXPECTED;
|
|
}
|
|
if (S_OK != hReturn)
|
|
goto ErrorExit;
|
|
|
|
|
|
//
|
|
// Add the Handler to our database.
|
|
//
|
|
|
|
// ?code? -- No database yet.
|
|
hDll = NULL;
|
|
|
|
ASSERT(NULL == hDll);
|
|
return S_OK;
|
|
|
|
ErrorExit:
|
|
if (NULL != hDll)
|
|
FreeLibrary(hDll);
|
|
return hReturn;
|
|
}
|
|
|
|
|
|
/*++
|
|
|
|
NoCoCreateInstance:
|
|
|
|
Creates a single uninitialized object of the class associated with a
|
|
specified CLSID. Call CoCreateInstance when you want to create only one
|
|
object on the local system.
|
|
|
|
Arguments:
|
|
|
|
rclsid - [in] CLSID associated with the data and code that will be used to
|
|
create the object.
|
|
|
|
pUnkOuter - [in] If NULL, indicates that the object is not being created as
|
|
part of an aggregate. If non-NULL, pointer to the aggregate object's
|
|
IUnknown interface (the controlling IUnknown).
|
|
|
|
riid - [in] Reference to the identifier of the interface to be used to
|
|
communicate with the object.
|
|
|
|
ppv - [out] Address of pointer variable that receives the interface
|
|
pointer requested in riid. Upon successful return, *ppv contains the
|
|
requested interface pointer.
|
|
|
|
Return Value:
|
|
|
|
S_OK - An instance of the specified object class was successfully created.
|
|
|
|
REGDB_E_CLASSNOTREG - A specified class is not registered in the
|
|
registration database. Also can indicate that the type of server you
|
|
requested in the CLSCTX enumeration is not registered or the values
|
|
for the server types in the registry are corrupt.
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/15/1999
|
|
|
|
--*/
|
|
|
|
STDAPI
|
|
NoCoCreateInstance(
|
|
REFCLSID rclsid,
|
|
LPUNKNOWN pUnkOuter,
|
|
REFIID riid,
|
|
LPVOID * ppv)
|
|
{
|
|
HRESULT hReturn = E_UNEXPECTED;
|
|
IClassFactory *pCF = NULL;
|
|
|
|
hReturn = NoCoGetClassObject(rclsid, IID_IClassFactory, (LPVOID*)&pCF);
|
|
if (S_OK != hReturn)
|
|
goto ErrorExit;
|
|
hReturn = pCF->CreateInstance(pUnkOuter, riid, ppv);
|
|
if (S_OK != hReturn)
|
|
goto ErrorExit;
|
|
pCF->Release();
|
|
pCF = NULL;
|
|
return S_OK;
|
|
|
|
ErrorExit:
|
|
if (NULL != pCF)
|
|
pCF->Release();
|
|
return hReturn;
|
|
}
|
|
|