windows-nt/Source/XPSP1/NT/admin/pchealth/sysinfo/whqlprov/whqlobj.cpp
2020-09-26 16:20:57 +08:00

759 lines
19 KiB
C++

///////////////////////////////////////////////////////////////////////////////
//This file has the implementation for the WMI Provider for WHQL.
//Uses MFC
///////////////////////////////////////////////////////////////////////////////
// WhqlObj.cpp : Implementation of CWhqlObj
#include "stdafx.h"
#include "WhqlProv.h"
#include "WhqlObj.h"
#include "setupapi.h"
/////////////////////////////////////////////////////////////////////////////
// CWhqlObj
//Fn which actually checks the signature when passed an Inf File.
extern BOOL IsInfSigned(LPTSTR FullInfPath , IWbemClassObject *pInstance = NULL);
inline VOID AddSlashes(LPTSTR str);
inline SCODE PutPropertyValue( IWbemClassObject* pInstance , LPCTSTR lpszProperty , LPCTSTR lpszValue );
STDMETHODIMP CWhqlObj::Initialize(LPWSTR pszUser, LONG lFlags,
LPWSTR pszNamespace, LPWSTR pszLocale,
IWbemServices *pNamespace,
IWbemContext *pCtx,
IWbemProviderInitSink *pInitSink)
{
if (pNamespace)
pNamespace->AddRef();
//Standard Var Inits.
m_pNamespace = pNamespace;
m_csPathStr.Empty();
m_csAntecedent.Empty();
//Let CIMOM know you are initialized
pInitSink->SetStatus(WBEM_S_INITIALIZED, 0);
DEBUGTRACE(L"Provider Initialized\n");
return WBEM_S_NO_ERROR;
}
SCODE CWhqlObj::CreateInstanceEnumAsync(BSTR RefStr, long lFlags, IWbemContext *pCtx,
IWbemObjectSink *pHandler)
{
DEBUGTRACE(L"Provider called for class = %s\n",RefStr);
HRESULT hr = S_OK;
IWbemClassObject *pClass = NULL;
IWbemClassObject **ppInstances = NULL;
VOID **ppData = NULL;
LONG cInstances, lIndex;
cInstances = lIndex = 0L;
m_ptrArr.RemoveAll();
m_csPathStr.Empty();
m_csAntecedent.Empty();
// Do a check of arguments and make sure we have pointer to Namespace
if(pHandler == NULL || m_pNamespace == NULL)
return WBEM_E_INVALID_PARAMETER;
// Get a class object from CIMOM
hr = m_pNamespace->GetObject(RefStr, 0, pCtx, &pClass, NULL);
if ( FAILED(hr) )
return WBEM_E_FAILED;
m_pClass = pClass;
VARIANT var;
VariantInit(&var);
Classes_Provided eClasses;
if(lstrcmpi(RefStr , L"Win32_PnPSignedDriver") == 0)
{
eClasses = Class_Win32_PnPSignedDriver;
}
else if(lstrcmpi(RefStr , L"Win32_PnPSignedDriverCIMDataFile") == 0)
{
eClasses = Class_Win32_PnPSignedDriverCIMDataFile;
}
else if(lstrcmpi(RefStr , L"Win32_PnPSignedDriverWin32PnPEntity") == 0)
{
eClasses = Class_Win32_PnPSignedDriverWin32PnPEntity;
}
hr = PutData( pCtx , eClasses);
if ( FAILED(hr) )
return WBEM_E_FAILED;
VariantClear(&var);
hr = pClass->Release();
cInstances = (LONG)m_ptrArr.GetSize();
ppInstances = (IWbemClassObject**)new LPVOID[cInstances];
for(int nIndex = 0 ;nIndex<cInstances ;nIndex++)
ppInstances[nIndex] = (IWbemClassObject*)m_ptrArr[nIndex];
if (SUCCEEDED(hr))
{
// Send the instances to the caller
hr = pHandler->Indicate(cInstances, ppInstances);
for (lIndex = 0; lIndex < cInstances; lIndex++)
ppInstances[lIndex]->Release();
}
// Cleanup
if (ppInstances)
{
delete []ppInstances;
ppInstances = NULL;
}
m_ptrArr.RemoveAll();
m_csPathStr.Empty();
m_csAntecedent.Empty();
m_csCurPnPID.Empty();
m_pClass = NULL;
// End Cleanup
// Set status
hr = pHandler->SetStatus(0, hr, NULL, NULL);
return hr;
}
/////////////////////////////////////
//Obsolete! For testing purposes only
//
int CWhqlObj::GetInfFileCount()
{
TCHAR lpszInfPath[MAX_PATH];
int iInstances = 0;
GetWindowsDirectory(lpszInfPath , sizeof(lpszInfPath));
lstrcat(lpszInfPath , L"\\inf\\*.inf");
WIN32_FIND_DATA findData;
HANDLE hFile = FindFirstFile(lpszInfPath , &findData);
BOOL bRet = TRUE;
while(hFile != INVALID_HANDLE_VALUE && bRet)
{
iInstances++;
bRet = FindNextFile(hFile , &findData);
}
return iInstances;
}
////////////////////////////////////////////////////
//Fills up pInstance fields passed an Inf file.
//
SCODE CWhqlObj::GetInfData(LPTSTR lpszInfFile , LPTSTR lpszInfSection , LPTSTR szDeviceID , IWbemContext *pCtx ,
IWbemClassObject *pInstance)
{
TCHAR lpReturnedString[2048];
TCHAR lpSectionList[2048];
CStringArray csarrCopyFileSection;
CStringArray csarrCopyFileBinaries;
HRESULT hr = S_FALSE;
HINF InfHandle = SetupOpenInfFile(lpszInfFile, NULL,INF_STYLE_WIN4,NULL);
INFCONTEXT Context;
BOOL bRet ;
if(INVALID_HANDLE_VALUE == InfHandle)
return S_FALSE;
VARIANT v;
VariantInit(&v);
//Find CopyFiles section.
LPTSTR lpSection = NULL;
bRet = SetupFindFirstLine(InfHandle,lpszInfSection,L"CopyFiles",&Context);
if(!bRet)
{
SetupCloseInfFile( InfHandle );
return S_FALSE;
}
bRet = SetupGetLineText(&Context,InfHandle,NULL,NULL,lpReturnedString,
sizeof(lpReturnedString),NULL);
if(!bRet)
{
SetupCloseInfFile( InfHandle );
return S_FALSE;
}
DEBUGTRACE(L"CopyFiles string for file %s is %s\n",lpszInfFile,lpReturnedString);
LPTSTR seps = L",";
LPTSTR token ;
token = wcstok( lpReturnedString, seps );
csarrCopyFileSection.Add(token);//Add token to csarrCopyFileSection
while (token)
{
lpSection = token;
token = wcstok( NULL, seps );
if(token)
csarrCopyFileSection.Add(token);//Add token to csarrCopyFileSection
}
for(int nIndex = 0;nIndex < csarrCopyFileSection.GetSize() ; nIndex++)
{
//Sometimes CopyFile Might have an entry like @mydriver.sys. Take care of that.
if((csarrCopyFileSection[nIndex])[0] == '@')
{
csarrCopyFileBinaries.Add(LPCTSTR(csarrCopyFileSection[nIndex]) + 1);
DEBUGTRACE(L"Adding binary file %s\n" , LPCTSTR(csarrCopyFileSection[nIndex]) + 1);
continue;
}
bRet = SetupFindFirstLine(InfHandle,csarrCopyFileSection[nIndex],NULL,&Context);
//Put all the files mentioned in the CopyFiles section in an array.
LPTSTR token = NULL;
while(bRet)
{
bRet = SetupGetLineText(&Context,InfHandle,NULL,NULL,lpSectionList,
sizeof(lpSectionList),NULL);
token = wcstok(lpSectionList , L",");
if(token != NULL)
lstrcpy(lpSectionList ,token);
DEBUGTRACE(L"Adding binary file %s\n" , lpSectionList);
csarrCopyFileBinaries.Add(lpSectionList);
bRet = SetupFindNextLine(&Context,&Context);
}
}
CString csTemp;
TCHAR str[MAX_PATH] ;
for(nIndex = 0 ; nIndex < csarrCopyFileBinaries.GetSize() ; nIndex++)
{
hr = m_pClass->SpawnInstance(0, &pInstance);
m_ptrArr.Add(pInstance);
if(GetSystemDirectory(str , sizeof(str)) == 0)
return S_FALSE;
lstrcat(str , L"\\Drivers\\");
AddSlashes(str);
csarrCopyFileBinaries[nIndex] = str + csarrCopyFileBinaries[nIndex];
csTemp = m_csPathStr ;
csTemp += L":CIM_DataFile.Name=\"";
csTemp += csarrCopyFileBinaries[nIndex] + L"\"";
PutPropertyValue( pInstance , L"Antecedent" , m_csAntecedent );
PutPropertyValue( pInstance , L"Dependent" , csTemp );
//////////////////BugBug !
PutPropertyValue( pInstance , L"PnPID" , m_csCurPnPID );
}
if( InfHandle != INVALID_HANDLE_VALUE )
SetupCloseInfFile( InfHandle );
return hr;
}
///////////////////////////////////////////////////////////////////////
//Creates Instances & populates data given the class type asked for
//Classes_Provided eClasses
//
SCODE CWhqlObj::PutData(IWbemContext *pCtx , Classes_Provided eClasses)
{
if(pCtx == NULL)
return S_FALSE;
if( eClasses == Class_Win32_PnPSignedDriverWin32PnPEntity)
{
return CreateAssoc( pCtx );
}
LPCTSTR szRegKey = L"SYSTEM\\CurrentControlSet\\Control\\Class";
HKEY hKey , hSubKey ;
TCHAR szName[MAX_PATH] ;
TCHAR szDeviceID[MAX_PATH] , szClassGuid[MAX_PATH] , szDeviceDesc[MAX_PATH];
LONG nInstanceIndex;
LONG len = sizeof(szName);
HRESULT hr = S_FALSE;
ULONG lRet = 0L;
LONG lIndex = 0L;
IEnumWbemClassObject *pEnum = NULL;
IWbemClassObject *pInstance = NULL;
IWbemClassObject *pObject = NULL;
if(ERROR_SUCCESS != RegOpenKey(HKEY_LOCAL_MACHINE , szRegKey , &hKey))
return S_FALSE;//goto cleanup;
//Get DeviceID , ClassGuid , Description , __NameSpace , __Server from Win32_PnpEntity class
//We need all these fields for further Proc.This call will create an Enum.
BSTR language = SysAllocString(L"WQL");
BSTR query = SysAllocString(L"select DeviceID , ClassGuid , Description , __NameSpace , __Server from Win32_PnpEntity");
hr = m_pNamespace->ExecQuery(language , query ,
WBEM_FLAG_RETURN_IMMEDIATELY|WBEM_FLAG_FORWARD_ONLY, pCtx , &pEnum);
SysFreeString(language);
SysFreeString(query);
if(pEnum == NULL)
return S_FALSE;
VARIANT v;
VariantInit(&v);
m_csAntecedent.Empty();
m_csCurPnPID.Empty();
//Iterate thro' the Enum for each DeviceID.
for(lIndex = 0L ; (WBEM_S_NO_ERROR == pEnum->Next(WBEM_INFINITE , 1 , &pObject , &lRet )) ; )
{
//Fill m_csPathStr.Its value will be used in Antecedent & Dependent in assoc. class.
//At the end of the condition we should have something like
//m_csPathStr = "\\\\A-KJAW-RI1\\root\\CIMV2"
if(m_csPathStr.IsEmpty())
{
hr = pObject->Get(L"__Server", 0, &v, NULL , NULL);
if( SUCCEEDED(hr) )
{
m_csPathStr += L"\\\\";
m_csPathStr += V_BSTR(&v);
hr = pObject->Get(L"__NameSpace", 0, &v, NULL , NULL);
if( SUCCEEDED(hr) )
{
m_csPathStr += L"\\";
m_csPathStr += V_BSTR(&v);
}
DEBUGTRACE(L"Server & Namespace Path = %s\n" , m_csPathStr);
VariantClear(&v);
}
}
//Get DeviceID from the pObject in the Enum.
hr = pObject->Get(L"DeviceID", 0, &v, NULL , NULL);
if( SUCCEEDED(hr) )
{
if(eClasses == Class_Win32_PnPSignedDriverCIMDataFile)
{
lstrcpy(szDeviceID , V_BSTR(&v));
m_csCurPnPID = szDeviceID;
AddSlashes(szDeviceID);
CString csTemp = m_csPathStr ;
csTemp += L":Win32_PnPSignedDriver.PnPId=\"";
csTemp += szDeviceID;
csTemp += L"\"";
m_csAntecedent = csTemp;//This will be used in assoc. class.
}
lstrcpy(szDeviceID , V_BSTR(&v));
DEBUGTRACE(L"PnPID = %s\n" , szDeviceID);
VariantClear(&v);
}
//Get ClassGuid from the pObject in the Enum.
hr = pObject->Get(L"ClassGuid", 0, &v, NULL , NULL);
if( SUCCEEDED(hr) )
{
lstrcpy(szClassGuid , V_BSTR(&v));
DEBUGTRACE(L"ClassGuid = %s\n" , szClassGuid);
TRACE(V_BSTR(&v));
}
//Get Description from the pObject in the Enum.
hr = pObject->Get(L"Description", 0, &v, NULL , NULL);
if( SUCCEEDED(hr) )
{
lstrcpy(szDeviceDesc , V_BSTR(&v));
DEBUGTRACE(L"DriverDesc = %s\n" , szDeviceDesc);
TRACE(V_BSTR(&v));
}
if(ERROR_SUCCESS == RegOpenKey(hKey, szClassGuid, &hSubKey) )
{
//BugBug:
//Get no. of subKeys for the GUID.
//If there are no subKeys (i presume) this means no Instances of the device
//represented by the GUID are present so we need not Instantiate an Instance Of win32_PnPSignedDriver.
RegQueryInfoKey(hSubKey , NULL , NULL , NULL , &lRet , NULL , NULL , NULL , NULL
, NULL , NULL , NULL);
if(eClasses == Class_Win32_PnPSignedDriver && lRet > 0)
{
hr = m_pClass->SpawnInstance(0, &pInstance);
if(FAILED(hr))
continue;
m_ptrArr.Add(pInstance);
PutPropertyValue( pInstance , L"PnPID" , szDeviceID );
PutPropertyValue( pInstance , L"ClassGuid" , szClassGuid );
//PutPropertyValue( pInstance , L"DriverDesc" , szDeviceDesc );
PutPropertyValue( pInstance , L"Description" , szDeviceDesc );
szName[0] = '\0';
hr = GetService(szDeviceID , szName , (ULONG*)&len);
CStringArray hwidArr;
LPTSTR szHwid = szName;
hwidArr.RemoveAll();
while(len > 0 && *szHwid != '\0')
{
hwidArr.Add(szHwid);
szHwid += lstrlen(szHwid) + 1;
}
if( hwidArr.GetSize() )
{
LPSAFEARRAY psa;
LONG lArrSize = (LONG)hwidArr.GetSize();
SAFEARRAYBOUND rgsabound[] = { lArrSize , 0 };
psa = SafeArrayCreate(VT_BSTR, 1, rgsabound);
if (!psa)
{
return E_OUTOFMEMORY;
}
long dim[1];
BSTR bstr = NULL;
for(int nIdx = 0 ; nIdx < lArrSize ; nIdx++)
{
bstr = hwidArr[nIdx].AllocSysString();
dim[0] = nIdx;
hr = SafeArrayPutElement(psa, dim , bstr);
}
v.vt = VT_ARRAY|VT_BSTR;
v.parray = psa;
hr = pInstance->Put(L"HardwareID", 0, &v, 0 );
VariantClear(&v);
hr = SafeArrayDestroyData(psa);
}
}
nInstanceIndex = 0;
EnumRegKeys(hSubKey , pInstance , szDeviceDesc , szDeviceID , pCtx , eClasses);
RegCloseKey(hSubKey);
if(eClasses == Class_Win32_PnPSignedDriver)
{
PutPropertyValue( pInstance , L"Service" , szName );
}
}
else
{
continue;
}
hr = pObject->Release();
}
//cleanup:
RegCloseKey(hKey);
if(pEnum)
pEnum->Release();
return S_OK;
}
//////////////////////////////////////////////////
//Will return the Service the device supports.
//
SCODE CWhqlObj::GetService(IN LPTSTR szDeviceID , OUT LPTSTR szName , IN ULONG* plen )
{
HKEY hSubKey , hInstanceKey;
DWORD dwType = REG_SZ ;
if(ERROR_SUCCESS != RegOpenKey(HKEY_LOCAL_MACHINE , L"SYSTEM\\CurrentControlSet\\Enum", &hSubKey))
return S_FALSE;
if(ERROR_SUCCESS != RegOpenKey(hSubKey , szDeviceID, &hInstanceKey))
{
RegCloseKey(hSubKey);
return S_FALSE;
}
//RegQueryValueEx(hInstanceKey , L"Service", NULL , &dwType
// , (UCHAR*)szName , (ULONG*)&len );
//Return HardwareID from this func. not service.
dwType = REG_MULTI_SZ;
LONG lRet = RegQueryValueEx(hInstanceKey , L"HardwareID", NULL , &dwType
, (UCHAR*)szName , (ULONG*)plen);
RegCloseKey(hSubKey);
RegCloseKey(hInstanceKey);
return S_OK;
}
///////////////////////////////////////////////////////
//Enumerates reg key & fills up pInstance fields.
//
SCODE CWhqlObj::EnumRegKeys(HKEY hSubKey , IWbemClassObject* pInstance , LPTSTR szDeviceDesc , LPTSTR szDeviceID ,
IWbemContext *pCtx , Classes_Provided eClasses)
{
LONG nInstanceIndex = 0;
HKEY hInstanceKey;
TCHAR szTempStr[MAX_PATH];
ULONG len = sizeof(szTempStr);
LONG lRet = -1;
DWORD dwType = REG_SZ ;
HRESULT hr = S_FALSE;
BOOL bIsSigned = FALSE;
TCHAR szInfPath[MAX_PATH] , szInfSection[MAX_PATH] , str[MAX_PATH] ;
VARIANT v;
VariantInit(&v);
while(ERROR_SUCCESS == RegEnumKey(hSubKey , nInstanceIndex++, szTempStr , sizeof(szTempStr)) )
{
lRet = RegOpenKey(hSubKey, szTempStr, &hInstanceKey);
if(lRet != ERROR_SUCCESS)
continue;
//Get DriverDesc
len = MAX_PATH;
lRet = RegQueryValueEx(hInstanceKey , L"DriverDesc", NULL , &dwType
, (UCHAR*)szTempStr, &len );
if(lRet != ERROR_SUCCESS)
continue;
if(lstrcmpi(szTempStr , szDeviceDesc) != 0)
{
RegCloseKey(hInstanceKey);
continue;
}
if(eClasses == Class_Win32_PnPSignedDriver)
{
DEBUGTRACE(L"DriverDesc= %s\n" , szTempStr);
//Put DriverDesc
PutPropertyValue( pInstance , L"DriverDesc" , szTempStr );
//Get DriverDate
len = MAX_PATH;
lRet = RegQueryValueEx(hInstanceKey,L"DriverDate", NULL , &dwType , (UCHAR*)szTempStr,(ULONG*)&len );
//if(lRet != ERROR_SUCCESS)
// continue;
DEBUGTRACE(L"DriverDate = %s\n" , szTempStr);
//Put DriverDesc
PutPropertyValue( pInstance , L"DriverDate" , szTempStr );
//Get DriverVersion
len = MAX_PATH;
lRet = RegQueryValueEx(hInstanceKey,L"DriverVersion", NULL , &dwType ,
(UCHAR*)szTempStr,(ULONG*)&len );
//if(lRet != ERROR_SUCCESS)
// continue;
DEBUGTRACE(L"DriverVersion= %s\n" , szTempStr);
//Put DriverVersion
PutPropertyValue( pInstance , L"DriverVersion" , szTempStr );
//Get ProviderName
len = MAX_PATH;
lRet = RegQueryValueEx(hInstanceKey,L"ProviderName", NULL , &dwType ,
(UCHAR*)szTempStr,(ULONG*)&len );
//if(lRet != ERROR_SUCCESS)
// continue;
DEBUGTRACE(L"ProviderName= %s\n" , szTempStr);
//Put ProviderName
PutPropertyValue( pInstance , L"ProviderName" , szTempStr );
}
//Get InfPath
szInfPath[0] = '\0';
len = MAX_PATH;
lRet = RegQueryValueEx(hInstanceKey,L"InfPath", NULL , &dwType , (UCHAR*)szInfPath,(ULONG*)&len );
//if(lRet != ERROR_SUCCESS)
// continue;
DEBUGTRACE(L"InfPath = %s\n" , szInfPath);
//Put InfPath
if(eClasses == Class_Win32_PnPSignedDriver)
{
PutPropertyValue( pInstance , L"InfPath" , szInfPath );
}
//Get Infsection
szInfSection[0] = '\0';
len = MAX_PATH;
lRet = RegQueryValueEx(hInstanceKey,L"InfSection", NULL , &dwType , (UCHAR*)szInfSection,(ULONG*)&len );
//if(lRet != ERROR_SUCCESS)
// continue;
DEBUGTRACE(L"InfSection = %s\n" , szInfSection);
//Get InfsectionExt
szTempStr[0] = '\0';
len = MAX_PATH;
lRet = RegQueryValueEx(hInstanceKey,L"InfSectionExt", NULL , &dwType , (UCHAR*)szTempStr,(ULONG*)&len );
//if(lRet != ERROR_SUCCESS)
// continue;
DEBUGTRACE(L"InfSectionExt = %s\n" , szTempStr);
lstrcat(szInfSection , szTempStr);
//Only if Class_Win32_PnPSignedDriverCIMDataFile call GetInfData to fill up all the
//Win32_PnPSignedDriverCIMDataFile class data.
if(eClasses == Class_Win32_PnPSignedDriverCIMDataFile)
{
GetInfData(szInfPath , szInfSection , szDeviceID , pCtx , pInstance);
}
RegCloseKey(hInstanceKey);
if(eClasses == Class_Win32_PnPSignedDriver)
{
if(GetWindowsDirectory(str , sizeof(str)) == 0)
return S_FALSE;
lstrcat(str , L"\\inf\\" );
lstrcat(str , szInfPath);
IsInfSigned( str , pInstance);
}
break;
}
return hr;
}
SCODE CWhqlObj::CreateAssoc( IWbemContext *pCtx )
{
IEnumWbemClassObject *pEnum = NULL;
IWbemClassObject *pInstance = NULL;
IWbemClassObject *pObject = NULL;
CComBSTR language = L"WQL";
CComBSTR query = L"select DeviceID , ClassGuid , __NameSpace , __Server from Win32_PnpEntity";
CComBSTR tmpBstr = NULL;
CComVariant v;
ULONG ulRet = 0;
HRESULT hr = m_pNamespace->ExecQuery(language , query ,
WBEM_FLAG_RETURN_IMMEDIATELY|WBEM_FLAG_FORWARD_ONLY, pCtx , &pEnum);
if(pEnum == NULL)
return hr;
for( ; (WBEM_S_NO_ERROR == pEnum->Next(WBEM_INFINITE , 1 , &pObject , &ulRet )) ; )
{
//Fill m_csPathStr.Its value will be used in Antecedent & Dependent in assoc. class.
//At the end of the condition we should have something like
//m_csPathStr = "\\\\A-KJAW-RI1\\root\\CIMV2"
if(m_csPathStr.IsEmpty())
{
hr = pObject->Get(L"__Server", 0, &v, NULL , NULL);
if( SUCCEEDED(hr) )
{
m_csPathStr += L"\\\\";
m_csPathStr += V_BSTR(&v);
hr = pObject->Get(L"__NameSpace", 0, &v, NULL , NULL);
if( SUCCEEDED(hr) )
{
m_csPathStr += L"\\";
m_csPathStr += V_BSTR(&v);
}
DEBUGTRACE(L"Server & Namespace Path = %s\n" , m_csPathStr);
VariantClear(&v);
}
}
hr = m_pClass->SpawnInstance(0, &pInstance);
hr = pObject->Get(L"__PATH", 0, &v, NULL , NULL);
hr = pInstance->Put(L"Dependent", 0, &v, 0 );
v.Clear();
hr = pObject->Get(L"DeviceID", 0, &v, NULL , NULL);
tmpBstr = m_csPathStr + "\\Win32_PnPSignedDriver.PnPID=\"";
tmpBstr += v.bstrVal;
tmpBstr += "\"";
PutPropertyValue( pInstance , L"Antecedent" , tmpBstr );
m_ptrArr.Add(pInstance);
}
return hr;
}
VOID AddSlashes(LPTSTR str)
{
LONG len = lstrlen(str);
TCHAR szTmp[MAX_PATH];
int nIndex1,nIndex2;
for(nIndex1 = nIndex2= 0 ; nIndex1 < len ; nIndex1++ , nIndex2++)
{
if(str[nIndex1] == '\\')
szTmp[nIndex2++] = '\\';
szTmp[nIndex2] = str[nIndex1];
}
szTmp[nIndex2] = '\0';
lstrcpy(str , szTmp);
}
VOID DEBUGTRACE(LPTSTR pszText , ... )
{
#ifdef _DEBUG
TCHAR szDebugStr[256];
va_list argList;
va_start(argList, pszText);
vswprintf(szDebugStr , pszText, argList);
va_end(argList);
OutputDebugString(szDebugStr);
#endif
}
SCODE PutPropertyValue( IWbemClassObject* pInstance , LPCTSTR lpszProperty , LPCTSTR lpszValue )
{
HRESULT hr = S_FALSE;
if(pInstance == NULL)
return hr;
CComVariant var;
var = lpszValue;
hr = pInstance->Put(lpszProperty , 0, &var, 0 );
return hr;
}