871 lines
14 KiB
C++
871 lines
14 KiB
C++
//***************************************************************************
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//
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// Useful.CPP
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//
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// Module: CDM Provider
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//
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// Purpose: Useful classes
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//
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// Copyright (c) 2000 Microsoft Corporation
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//
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//***************************************************************************
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#include <objbase.h>
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#include <wbemprov.h>
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#include "debug.h"
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#include "useful.h"
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#include "wbemmisc.h"
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void FreeTheBSTRArray(
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BSTR *Array,
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ULONG Size
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)
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/*+++
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Routine Description:
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This routine will free the contents of an array of BSTR and then
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the array itself
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Arguments:
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Array is the array to be freed
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Size is the number of elements in the array
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Return Value:
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HRESULT
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---*/
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{
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ULONG i;
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if (Array != NULL)
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{
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for (i = 0; i < Size; i++)
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{
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if (Array[i] != NULL)
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{
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SysFreeString(Array[i]);
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}
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}
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WmipFree(Array);
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}
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}
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CBstrArray::CBstrArray()
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{
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Array = NULL;
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ListSize = 0xffffffff;
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}
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CBstrArray::~CBstrArray()
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{
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ULONG i;
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if (Array != NULL)
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{
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for (i = 0; i < ListSize; i++)
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{
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if (Array[i] != NULL)
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{
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SysFreeString(Array[i]);
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}
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}
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WmipFree(Array);
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}
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ListSize = 0xffffffff;
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}
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HRESULT CBstrArray::Initialize(
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ULONG ListCount
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)
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{
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HRESULT hr = WBEM_S_NO_ERROR;
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ULONG AllocSize;
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if (ListCount != 0)
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{
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AllocSize = ListCount * sizeof(BSTR *);
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Array = (BSTR *)WmipAlloc(AllocSize);
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if (Array != NULL)
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{
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memset(Array, 0, AllocSize);
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ListSize = ListCount;
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} else {
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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} else {
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ListSize = ListCount;
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}
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return(hr);
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}
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BOOLEAN CBstrArray::IsInitialized(
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)
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{
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return( (Array != NULL) || (ListSize == 0) );
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}
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BSTR CBstrArray::Get(
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ULONG Index
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)
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{
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WmipAssert(Index < ListSize);
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WmipAssert(IsInitialized());
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return(Array[Index]);
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}
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void CBstrArray::Set(
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ULONG Index,
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BSTR s
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)
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{
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WmipAssert(Index < ListSize);
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WmipAssert(IsInitialized());
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Array[Index] = s;
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}
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ULONG CBstrArray::GetListSize(
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)
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{
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WmipAssert(IsInitialized());
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return(ListSize);
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}
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CWbemObjectList::CWbemObjectList()
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{
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//
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// Constructor, init internal values
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//
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List = NULL;
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RelPaths = NULL;
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ListSize = 0xffffffff;
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}
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CWbemObjectList::~CWbemObjectList()
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{
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ULONG i;
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//
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// Destructor, free memory held by this class
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//
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if (List != NULL)
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{
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for (i = 0; i < ListSize; i++)
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{
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if (List[i] != NULL)
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{
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List[i]->Release();
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}
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}
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WmipFree(List);
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}
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List = NULL;
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if (RelPaths != NULL)
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{
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FreeTheBSTRArray(RelPaths, ListSize);
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RelPaths = NULL;
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}
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ListSize = 0xffffffff;
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}
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HRESULT CWbemObjectList::Initialize(
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ULONG NumberPointers
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)
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{
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HRESULT hr;
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ULONG AllocSize;
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//
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// Initialize class by allocating internal list array
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//
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WmipAssert(List == NULL);
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if (NumberPointers != 0)
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{
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AllocSize = NumberPointers * sizeof(IWbemClassObject *);
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List = (IWbemClassObject **)WmipAlloc(AllocSize);
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if (List != NULL)
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{
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memset(List, 0, AllocSize);
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AllocSize = NumberPointers * sizeof(BSTR);
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RelPaths = (BSTR *)WmipAlloc(AllocSize);
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if (RelPaths != NULL)
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{
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memset(RelPaths, 0, AllocSize);
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ListSize = NumberPointers;
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hr = WBEM_S_NO_ERROR;
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} else {
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WmipDebugPrint(("CDMProv: Could not alloc memory for CWbemObjectList RelPaths\n"));
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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} else {
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WmipDebugPrint(("CDMProv: Could not alloc memory for CWbemObjectList\n"));
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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} else {
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ListSize = NumberPointers;
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hr = WBEM_S_NO_ERROR;
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}
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return(hr);
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}
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ULONG CWbemObjectList::GetListSize(
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void
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)
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{
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//
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// Accessor for list size
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//
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WmipAssert(IsInitialized());
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return(ListSize);
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}
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IWbemClassObject *CWbemObjectList::Get(
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ULONG Index
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)
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{ IWbemClassObject *Pointer;
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WmipAssert(Index < ListSize);
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WmipAssert(IsInitialized());
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Pointer = List[Index];
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return(Pointer);
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}
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HRESULT CWbemObjectList::Set(
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IN ULONG Index,
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IN IWbemClassObject *Pointer
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)
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{
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HRESULT hr;
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VARIANT v;
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WmipAssert(Pointer != NULL);
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WmipAssert(Index < ListSize);
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WmipAssert(IsInitialized());
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hr = WmiGetProperty(Pointer,
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L"__RelPath",
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CIM_REFERENCE,
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&v);
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if (hr == WBEM_S_NO_ERROR)
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{
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RelPaths[Index] = v.bstrVal;
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List[Index] = Pointer;
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}
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return(hr);
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}
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BSTR /* NOFREE */ CWbemObjectList::GetRelPath(
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IN ULONG Index
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)
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{
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WmipAssert(Index < ListSize);
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WmipAssert(IsInitialized());
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return(RelPaths[Index]);
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}
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BOOLEAN CWbemObjectList::IsInitialized(
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)
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{
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return((ListSize == 0) ||
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((List != NULL) && (RelPaths != NULL)));
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}
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CValueMapping::CValueMapping(
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)
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{
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VariantInit(&Values);
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ValueMap = NULL;
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}
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CValueMapping::~CValueMapping(
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)
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{
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if (ValueMap != NULL)
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{
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WmipFree(ValueMap);
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}
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VariantClear(&Values);
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}
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HRESULT CValueMapping::EstablishByName(
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IWbemServices *pServices,
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PWCHAR ClassName,
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PWCHAR PropertyName
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)
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{
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HRESULT hr;
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PWCHAR Names[2];
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VARTYPE Types[2];
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VARIANT v[2];
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VARTYPE IsValueMapArray, IsValuesArray;
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Names[0] = L"ValueMap";
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Types[0] = VT_BSTR;
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Names[1] = L"Values";
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Types[1] = VT_BSTR;
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hr = WmiGetQualifierListByName(pServices,
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ClassName,
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PropertyName,
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2,
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Names,
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Types,
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v);
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if (hr == WBEM_S_NO_ERROR)
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{
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IsValueMapArray = v[0].vt & VT_ARRAY;
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IsValuesArray = v[1].vt & VT_ARRAY;
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if (IsValueMapArray == IsValuesArray)
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{
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if (IsValueMapArray)
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{
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//
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// Qualifiers specified as arrays so we can just
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// set them up
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//
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hr = EstablishByArrays(&v[1],
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&v[0]);
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} else {
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//
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// Qualifiers specified as scalars
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//
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hr = EstablishByScalars(v[1].bstrVal,
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v[0].bstrVal);
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}
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} else {
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//
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// Both must be an array or a scalar
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//
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hr = WBEM_E_FAILED;
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}
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VariantClear(&v[0]);
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VariantClear(&v[1]);
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}
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return(hr);
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}
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HRESULT CValueMapping::EstablishByScalars(
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BSTR vValues,
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BSTR vValueMap
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)
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{
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HRESULT hr;
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PULONG Number;
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LONG Index;
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SAFEARRAYBOUND Bound;
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//
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// First, establish the ValueMap values
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//
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ValueMap = (PULONG64)WmipAlloc(sizeof(ULONG64));
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if (ValueMap != NULL)
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{
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*ValueMap = _wtoi(vValueMap);
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ValueMapElements = 1;
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//
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// Now build a safearray to store the Values element
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//
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ValuesLBound = 0;
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Bound.lLbound = ValuesLBound;
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Bound.cElements = 1;
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Values.parray = SafeArrayCreate(VT_BSTR,
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1,
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&Bound);
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if (Values.parray != NULL)
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{
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Values.vt = VT_BSTR | VT_ARRAY;
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Index = 0;
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hr = SafeArrayPutElement(Values.parray,
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&Index,
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vValues);
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if (hr != WBEM_S_NO_ERROR)
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{
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VariantClear(&Values);
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}
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}
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} else {
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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return(hr);
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}
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HRESULT CValueMapping::EstablishByArrays(
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VARIANT *vValues,
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VARIANT *vValueMap
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)
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{
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HRESULT hr;
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BSTR s;
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LONG ValueMapLBound, ValueMapUBound;
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LONG ValuesUBound, ValuesElements;
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LONG Index;
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LONG i;
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//
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// Get the array sizes and ensure that they match
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//
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hr = WmiGetArraySize(vValueMap->parray,
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&ValueMapLBound,
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&ValueMapUBound,
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&ValueMapElements);
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if (hr == WBEM_S_NO_ERROR)
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{
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hr = WmiGetArraySize(vValues->parray,
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&ValuesLBound,
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&ValuesUBound,
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&ValuesElements);
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if (hr == WBEM_S_NO_ERROR)
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{
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if ((ValuesLBound == ValueMapLBound) &&
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(ValuesUBound == ValueMapUBound) &&
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(ValuesElements == ValueMapElements))
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{
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//
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// The ValueMap is balance with the values so parse the
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// valuemaps from strings to ulongs
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//
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ValueMap = (PULONG64)WmipAlloc(ValueMapElements * sizeof(ULONG64));
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if (ValueMap != NULL)
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{
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for (i = 0; i < ValueMapElements; i++)
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{
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Index = i + ValueMapLBound;
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hr = SafeArrayGetElement(vValueMap->parray,
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&Index,
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&s);
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if (hr == WBEM_S_NO_ERROR)
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{
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ValueMap[i] = _wtoi(s);
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SysFreeString(s);
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}
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}
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//
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// And assign Values to our class
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//
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Values = *vValues;
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VariantInit(vValues);
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} else {
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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}
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}
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}
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return(hr);
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}
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HRESULT CValueMapping::MapToString(
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IN ULONG64 Number,
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OUT BSTR *String
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)
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{
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LONG i;
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WCHAR ss[MAX_PATH];
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LONG Index;
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HRESULT hr;
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//
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// Loop over all values and try to find a match
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//
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for (i = 0, hr = WBEM_E_FAILED;
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(i < ValueMapElements) && (hr != WBEM_S_NO_ERROR);
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i++)
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{
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if (Number == ValueMap[i])
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{
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//
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// We found something to map the value to
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//
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Index = i + ValuesLBound;
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hr = SafeArrayGetElement(Values.parray,
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&Index,
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String);
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}
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}
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if (hr != WBEM_S_NO_ERROR)
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{
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//
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// There was no match so we just leave the result as a number
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//
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wsprintfW(ss, L"%d", Number);
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*String = SysAllocString(ss);
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if (*String == NULL)
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{
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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}
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return(hr);
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}
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HRESULT CValueMapping::MapToNumber(
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IN BSTR String,
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OUT PULONG64 Number
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)
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{
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LONG i;
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BSTR s;
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LONG Index;
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HRESULT hr, hr2;
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for (i = 0, hr = WBEM_E_FAILED;
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(i < ValueMapElements) && (hr != WBEM_S_NO_ERROR);
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i++)
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{
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Index = i + ValuesLBound;
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hr2 = SafeArrayGetElement(Values.parray,
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&Index,
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&s);
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if (hr2 == WBEM_S_NO_ERROR)
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{
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if (_wcsicmp(s, String) == 0)
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{
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*Number = ValueMap[i];
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hr = WBEM_S_NO_ERROR;
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}
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SysFreeString(s);
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}
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}
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//
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// There was no match so we don't really have anything to map to
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//
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return(hr);
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}
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HRESULT CValueMapping::MapVariantToNumber(
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VARIANT *v,
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CIMTYPE NewType
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)
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{
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HRESULT hr;
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VARTYPE BaseType, IsArray;
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ULONG64 Number;
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VARTYPE NewVarType;
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WCHAR ss[MAX_PATH];
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BaseType = v->vt & ~VT_ARRAY;
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IsArray = v->vt & VT_ARRAY;
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WmipAssert(BaseType == VT_BSTR);
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if (IsArray == VT_ARRAY)
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{
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//
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// The variant is an array so we need to map each element in an
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// array
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//
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SAFEARRAYBOUND Bounds;
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SAFEARRAY *Array;
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ULONG Value;
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LONG UBound, LBound, Elements, Index;
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BSTR s;
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LONG i;
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hr = WmiGetArraySize(v->parray,
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&LBound,
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&UBound,
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&Elements);
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if (hr == WBEM_S_NO_ERROR)
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{
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if ((NewType == (CIM_SINT64 | CIM_FLAG_ARRAY)) ||
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(NewType == (CIM_UINT64 | CIM_FLAG_ARRAY)))
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{
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//
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// If we are mapping to a 64bit number we need to make
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// it into a string so setup as an safearray of strings
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//
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NewVarType = VT_BSTR | VT_ARRAY;
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} else {
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NewVarType = (VARTYPE)NewType;
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}
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Bounds.lLbound = LBound;
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Bounds.cElements = Elements;
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Array = SafeArrayCreate(NewVarType,
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1,
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&Bounds);
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|
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if (Array != NULL)
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{
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for (i = 0;
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(i < Elements) && (hr == WBEM_S_NO_ERROR);
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i++)
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{
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Index = i + LBound;
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hr = SafeArrayGetElement(v->parray,
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&Index,
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&s);
|
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if (hr == WBEM_S_NO_ERROR)
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{
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hr = MapToNumber(s,
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&Number);
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SysFreeString(s);
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|
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if (hr == WBEM_S_NO_ERROR)
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{
|
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if (NewVarType == (VT_BSTR | VT_ARRAY))
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{
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//
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|
// Mapping to a 64bit number so convert
|
|
// to string first
|
|
//
|
|
wsprintfW(ss, L"%d", Number);
|
|
s = SysAllocString(ss);
|
|
if (s != NULL)
|
|
{
|
|
hr = SafeArrayPutElement(Array,
|
|
&Index,
|
|
s);
|
|
SysFreeString(s);
|
|
} else {
|
|
hr = WBEM_E_OUT_OF_MEMORY;
|
|
}
|
|
} else {
|
|
hr = SafeArrayPutElement(Array,
|
|
&Index,
|
|
&Number);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
VariantClear(v);
|
|
v->vt = NewType | VT_ARRAY;
|
|
v->parray = Array;
|
|
} else {
|
|
SafeArrayDestroy(Array);
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
//
|
|
// The variant is a scalar so we just need to map one thing
|
|
//
|
|
hr = MapToNumber(v->bstrVal,
|
|
&Number);
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
VariantClear(v);
|
|
WmiSetNumberInVariant(v,
|
|
NewType,
|
|
Number);
|
|
}
|
|
}
|
|
return(hr);
|
|
}
|
|
|
|
HRESULT CValueMapping::MapVariantToString(
|
|
VARIANT *v,
|
|
CIMTYPE OldType
|
|
)
|
|
{
|
|
VARTYPE BaseType, IsArray;
|
|
ULONG64 Number;
|
|
BSTR s;
|
|
HRESULT hr;
|
|
LONG i;
|
|
|
|
BaseType = v->vt & ~VT_ARRAY;
|
|
IsArray = v->vt & VT_ARRAY;
|
|
|
|
if (IsArray == VT_ARRAY)
|
|
{
|
|
//
|
|
// The variant is an array so we need to map each element in an
|
|
// array
|
|
//
|
|
SAFEARRAYBOUND Bounds;
|
|
SAFEARRAY *Array;
|
|
ULONG Value;
|
|
LONG UBound, LBound, Elements, Index;
|
|
|
|
hr = WmiGetArraySize(v->parray,
|
|
&LBound,
|
|
&UBound,
|
|
&Elements);
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
Bounds.lLbound = LBound;
|
|
Bounds.cElements = Elements;
|
|
Array = SafeArrayCreate(VT_BSTR,
|
|
1,
|
|
&Bounds);
|
|
|
|
if (Array != NULL)
|
|
{
|
|
for (i = 0;
|
|
(i < Elements) && (hr == WBEM_S_NO_ERROR);
|
|
i++)
|
|
{
|
|
Index = i + LBound;
|
|
|
|
if (BaseType == VT_BSTR)
|
|
{
|
|
//
|
|
// If base type is a string then we assume that
|
|
// we've got a 64bit number which is encoded as
|
|
// a string. So we need to fish out the string
|
|
// and convert it to a ULONG64
|
|
//
|
|
WmipAssert((OldType == (CIM_SINT64 | CIM_FLAG_ARRAY)) ||
|
|
(OldType == (CIM_UINT64 | CIM_FLAG_ARRAY)));
|
|
|
|
hr = SafeArrayGetElement(v->parray,
|
|
&Index,
|
|
&s);
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
Number = _wtoi(s);
|
|
SysFreeString(s);
|
|
}
|
|
} else {
|
|
//
|
|
// Otherwise the number is acutally encoded as
|
|
// a number so fish out the number
|
|
//
|
|
Number = 0;
|
|
hr = SafeArrayGetElement(v->parray,
|
|
&Index,
|
|
&Number);
|
|
}
|
|
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
hr = MapToString(Number,
|
|
&s);
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
hr = SafeArrayPutElement(Array,
|
|
&Index,
|
|
s);
|
|
SysFreeString(s);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
VariantClear(v);
|
|
v->vt = VT_BSTR | VT_ARRAY;
|
|
v->parray = Array;
|
|
} else {
|
|
SafeArrayDestroy(Array);
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
//
|
|
// The variant is a scalar so we just need to map one thing
|
|
//
|
|
WmiGetNumberFromVariant(v,
|
|
OldType,
|
|
&Number);
|
|
|
|
hr = MapToString(Number,
|
|
&s);
|
|
if (hr == WBEM_S_NO_ERROR)
|
|
{
|
|
VariantClear(v);
|
|
v->vt = VT_BSTR;
|
|
v->bstrVal = s;
|
|
}
|
|
}
|
|
return(hr);
|
|
}
|
|
|
|
#ifndef HEAP_DEBUG
|
|
PVOID WmipAlloc(
|
|
IN ULONG Size
|
|
)
|
|
/*+++
|
|
|
|
Routine Description:
|
|
|
|
Internal memory allocator
|
|
|
|
Arguments:
|
|
|
|
Size is the number of bytes to allocate
|
|
|
|
Return Value:
|
|
|
|
pointer to alloced memory or NULL
|
|
|
|
---*/
|
|
{
|
|
return(LocalAlloc(LPTR, Size));
|
|
}
|
|
|
|
void WmipFree(
|
|
IN PVOID Ptr
|
|
)
|
|
/*+++
|
|
|
|
Routine Description:
|
|
|
|
Internal memory deallocator
|
|
|
|
Arguments:
|
|
|
|
Pointer to freed memory
|
|
|
|
Return Value:
|
|
|
|
void
|
|
|
|
---*/
|
|
{
|
|
WmipAssert(Ptr != NULL);
|
|
LocalFree(Ptr);
|
|
}
|
|
|
|
#endif
|
|
|
|
|