windows-nt/Source/XPSP1/NT/base/cluster/wmiprovider/proplist.cpp

/////////////////////////////////////////////////////////////////////////////
//
//	Copyright (c) 1997-1999 Microsoft Corporation
//
//	Module Name:
//		PropList.cpp
//
//	Description:
//		Implementation of the CClusPropList class.
//
//	Author:
//		David Potter (davidp)	February 24, 1997
//
//	Revision History:
//		Galen Barbee (galenb)	December 18, 1998
//			Added parsing methods.
//
//	Notes:
//
/////////////////////////////////////////////////////////////////////////////

#include "Pch.h"
#include "proplist.tmh"

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

#ifndef __AFX_H__
class CMemoryException
{
public:
	void Delete( void ) { }

}; //*** class CMemoryException
#endif // __AFX_H__

/////////////////////////////////////////////////////////////////////////////
// Constant Definitions
/////////////////////////////////////////////////////////////////////////////

const int BUFFER_GROWTH_FACTOR = 256;

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CchMultiSz
//
//	Description:
//		Length of all of the substrings of a multisz string minus the final NULL.
//
//		(i.e., includes the nulls of the substrings, excludes the final null)
//		multiszlen( "abcd\0efgh\0\0" => 5 + 5 = 10
//
//	Arguments:
//		psz		[IN] The string to get the length of.
//
//	Return Value:
//		Count of characters in the multisz or 0 if empty.
//
//--
/////////////////////////////////////////////////////////////////////////////
static size_t CchMultiSz(
	IN LPCWSTR psz
	)
{
	ASSERT( psz != NULL );

	size_t	_cchTotal = 0;
	size_t	_cchChars;

	while ( *psz != _T( '\0' ) )
	{
		_cchChars = lstrlenW( psz ) + 1;

		_cchTotal += _cchChars;
		psz += _cchChars;
	} // while: pointer not stopped on EOS

	return _cchTotal;

} //*** CchMultiSz

/////////////////////////////////////////////////////////////////////////////
//++
//
//	NCompareMultiSz
//
//	Description:
//		Compare two MULTI_SZ buffers.
//
//	Arguments:
//		pszSource	[IN] The source string.
//		pszTarget	[IN] The target string.
//
//	Return Value:
//		If the string pointed to by pszSource is less than the string pointed
//		to by pszTarget, the return value is negative. If the string pointed
//		to by pszSource is greater than the string pointed to by pszTarget,
//		the return value is positive. If the strings are equal, the return value
//		is zero.
//
//--
/////////////////////////////////////////////////////////////////////////////
static int NCompareMultiSz(
	IN LPCWSTR pszSource,
	IN LPCWSTR pszTarget
	)
{
	ASSERT( pszSource != NULL );
	ASSERT( pszTarget != NULL );

	while ( ( *pszSource != L'\0' ) && ( *pszTarget != L'\0') )
	{
		//
		// Move to end of strings.
		//
		while ( ( *pszSource != L'\0' ) && ( *pszTarget != L'\0') && ( *pszSource == *pszTarget ) )
		{
			++pszSource;
			++pszTarget;
		} // while: pointer not stopped on EOS

		//
		// If strings are the same, skip past terminating NUL.
		// Otherwise exit the loop.
		if ( ( *pszSource == L'\0' ) && ( *pszTarget == L'\0') )
		{
			++pszSource;
			++pszTarget;
		} // if: both stopped on EOS
		else
		{
			break;
		} // else: stopped because something is not equal -- wr are done.

	} // while: pointer not stopped on EOS

	return *pszSource - *pszTarget;

} //*** NCompareMultiSz()


//*************************************************************************//


/////////////////////////////////////////////////////////////////////////////
// CClusPropValueList class
/////////////////////////////////////////////////////////////////////////////

#ifdef __AFX_H__
IMPLEMENT_DYNAMIC( CClusPropValueList, CObject );
#endif // __AFX_H__

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropValueList::ScMoveToFirstValue
//
//	Description:
//		Move the cursor to the first value in the value list.
//
//	Arguments:
//		None.
//
//	Return Value:
//		ERROR_SUCCESS	Position moved to the first value successfully.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropValueList::ScMoveToFirstValue( void )
{
	ASSERT( m_cbhValueList.pb != NULL );

	DWORD	_sc;

	m_cbhCurrentValue = m_cbhValueList;
	m_cbDataLeft = m_cbDataSize;
	m_bAtEnd = FALSE;

	if ( m_cbhCurrentValue.pSyntax->dw == CLUSPROP_SYNTAX_ENDMARK )
	{
		_sc = ERROR_NO_MORE_ITEMS;
	} // if: no items in the value list
	else
	{
		_sc = ERROR_SUCCESS;
	} // else: items exist in the value list

	return _sc;

} //*** CClusPropValueList::ScMoveToFirstValue()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropValueList::ScMoveToNextValue
//
//	Description:
//		Move the cursor to the next value in the list.
//
//	Arguments:
//		None.
//
//	Return Value:
//		ERROR_SUCCESS		Position moved to the next value successfully.
//		ERROR_NO_MORE_ITEMS	Already at the end of the list.
//		ERROR_INVALID_DATA	Not enough data in the buffer.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropValueList::ScMoveToNextValue( void )
{
	ASSERT( m_cbhCurrentValue.pb != NULL );

	DWORD					_sc		= ERROR_NO_MORE_ITEMS;
	DWORD					_cbDataSize;
	CLUSPROP_BUFFER_HELPER	_cbhCurrentValue;

	_cbhCurrentValue = m_cbhCurrentValue;

	do
	{
		//
		// Don't try to move if we're already at the end.
		//
		if ( m_bAtEnd )
		{
			break;
		} // if: already at the end of the list

		//
		// Make sure the buffer is big enough for the value header.
		//
		if ( m_cbDataLeft < sizeof( *_cbhCurrentValue.pValue ) )
		{
			_sc = ERROR_INVALID_DATA;
			break;
		} // if: not enough data left

		//
		// Calculate how much to advance buffer pointer.
		//
		_cbDataSize = sizeof( *_cbhCurrentValue.pValue )
					+ ALIGN_CLUSPROP( _cbhCurrentValue.pValue->cbLength );

		//
		// Make sure the buffer is big enough for the value header,
		// the data itself, and the endmark.
		//
		if ( m_cbDataLeft < _cbDataSize + sizeof( CLUSPROP_SYNTAX ) )
		{
			_sc = ERROR_INVALID_DATA;
			break;
		} // if: not enough data left

		//
		// Move past the current value to the next value's syntax.
		//
		_cbhCurrentValue.pb += _cbDataSize;

		//
		// This test will ensure that the value is always valid since we won't
		// advance if the next thing is the endmark.
		//
		if ( _cbhCurrentValue.pSyntax->dw != CLUSPROP_SYNTAX_ENDMARK )
		{
			m_cbhCurrentValue = _cbhCurrentValue;
			m_cbDataLeft -= _cbDataSize;
			_sc = ERROR_SUCCESS;
		} // if: next value's syntax is not the endmark
		else
		{
			m_bAtEnd = TRUE;
		} // else: next value's syntax is the endmark
	} while ( 0 );

	return _sc;

} //*** CClusPropValueList::ScMoveToNextValue()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropValueList::ScCheckIfAtLastValue
//
//	Description:
//		Indicate whether we are on the last value in the list or not.
//
//	Arguments:
//		None.
//
//	Return Value:
//		ERROR_SUCCESS		Not currently at the last value in the list.
//		ERROR_NO_MORE_ITEMS	Currently at the last value in the list.
//		ERROR_INVALID_DATA	Not enough data in the buffer.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropValueList::ScCheckIfAtLastValue( void )
{
	ASSERT( m_cbhCurrentValue.pb != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	CLUSPROP_BUFFER_HELPER	_cbhCurrentValue;
	DWORD					_cbDataSize;

	_cbhCurrentValue = m_cbhCurrentValue;

	do
	{
		//
		// Don't try to recalculate if we already know
		// we're at the end of the list.
		//
		if ( m_bAtEnd )
		{
			break;
		} // if: already at the end of the list

		//
		// Make sure the buffer is big enough for the value header.
		//
		if ( m_cbDataLeft < sizeof( *_cbhCurrentValue.pValue ) )
		{
			_sc = ERROR_INVALID_DATA;
			break;
		} // if: not enough data left

		//
		// Calculate how much to advance buffer pointer.
		//
		_cbDataSize = sizeof( *_cbhCurrentValue.pValue )
					+ ALIGN_CLUSPROP( _cbhCurrentValue.pValue->cbLength );

		//
		// Make sure the buffer is big enough for the value header,
		// the data itself, and the endmark.
		//
		if ( m_cbDataLeft < _cbDataSize + sizeof( CLUSPROP_SYNTAX ) )
		{
			_sc = ERROR_INVALID_DATA;
			break;
		} // if: not enough data left

		//
		// Move past the current value to the next value's syntax.
		//
		_cbhCurrentValue.pb += _cbDataSize;

		//
		// We are on the last value if the next thing after this value
		// is an endmark.
		//
		if ( _cbhCurrentValue.pSyntax->dw == CLUSPROP_SYNTAX_ENDMARK )
		{
			_sc = ERROR_NO_MORE_ITEMS;
		} // if: next value's syntax is the endmark
	} while ( 0 );

	return _sc;

} //*** CClusPropValueList::ScCheckIfAtLastValue()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropValueList::ScAllocValueList
//
//	Description:
//		Allocate a value list buffer that's big enough to hold the next
//		value.
//
//	Arguments:
//		cbMinimum	[IN] Minimum size of the value list.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions thrown by new.  By default, no exceptions are thrown.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropValueList::ScAllocValueList( IN DWORD cbMinimum )
{
	ASSERT( cbMinimum > 0 );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cbTotal = 0;

	//
	// Add the size of the item count and final endmark.
	//
	cbMinimum += sizeof( CLUSPROP_VALUE );
	_cbTotal = m_cbDataSize + cbMinimum;

	if ( m_cbBufferSize < _cbTotal )
	{
		PBYTE	_pbNewValuelist = NULL;

		cbMinimum = max( BUFFER_GROWTH_FACTOR, cbMinimum );
		_cbTotal = m_cbDataSize + cbMinimum;

		//
		// Allocate and zero a new buffer.
		//
		_pbNewValuelist = new BYTE[ _cbTotal ];
		if ( _pbNewValuelist != NULL )
		{
			ZeroMemory( _pbNewValuelist, _cbTotal );

			//
			// If there was a previous buffer, copy it and the delete it.
			//
			if ( m_cbhValueList.pb != NULL )
			{
				if ( m_cbDataSize != 0 )
				{
					CopyMemory( _pbNewValuelist, m_cbhValueList.pb, m_cbDataSize );
				} // if: data already exists in buffer

				delete [] m_cbhValueList.pb;
				m_cbhCurrentValue.pb = _pbNewValuelist + (m_cbhCurrentValue.pb - m_cbhValueList.pb);
			} // if: there was a previous buffer
			else
			{
				m_cbhCurrentValue.pb = _pbNewValuelist + sizeof( DWORD ); // move past prop count
			} // else: no previous buffer

			//
			// Save the new buffer.
			//
			m_cbhValueList.pb = _pbNewValuelist;
			m_cbBufferSize = _cbTotal;
		} // if: allocation succeeded
		else
		{
			_sc = ERROR_NOT_ENOUGH_MEMORY;
		} // else: allocation failed
	} // if: buffer isn't big enough

	return _sc;

} //*** CClusPropValueList::ScAllocValueList()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropValueList::ScGetResourceValueList
//
//	Description:
//		Get value list of a resource.
//
//	Arguments:
//		hResource		[IN] Handle for the resource to get properties from.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropValueList::ScAllocValueList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropValueList::ScGetResourceValueList(
	IN HRESOURCE	hResource,
	IN DWORD		dwControlCode,
	IN HNODE		hHostNode,
	IN LPVOID		lpInBuffer,
	IN DWORD		cbInBufferSize
	)
{
	ASSERT( hResource != NULL );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_RESOURCE << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cb = 512;

    TracePrint(( "GetResourceValueList entry\n" ));

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get values.
	//
	_sc = ScAllocValueList( _cb );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterResourceControl(
						hResource,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhValueList.pb,
						m_cbBufferSize,
						&_cb
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocValueList( _cb );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterResourceControl(
								hResource,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhValueList.pb,
								m_cbBufferSize,
								&_cb
								);
			} // if: ScAllocValueList succeeded
		} // if: buffer too small
	} // if: ScAllocValueList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeleteValueList();
	} // if: error getting properties.
	else
	{
		m_cbDataSize = _cb;
		m_cbDataLeft = _cb;
	} // else: no errors

	return _sc;

} //*** CClusPropValueList::ScGetResourceValueList()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropValueList::ScGetResourceTypeValueList
//
//	Description:
//		Get value list of a resource type.
//
//	Arguments:
//		hCluster		[IN] Handle for the cluster in which the resource
//							type resides.
//		pwszResTypeName	[IN] Name of the resource type.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropValueList::ScAllocValueList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropValueList::ScGetResourceTypeValueList(
	IN HCLUSTER	hCluster,
	IN LPCWSTR	pwszResTypeName,
	IN DWORD	dwControlCode,
	IN HNODE	hHostNode,
	IN LPVOID	lpInBuffer,
	IN DWORD	cbInBufferSize
	)
{
	ASSERT( hCluster != NULL );
	ASSERT( pwszResTypeName != NULL );
	ASSERT( *pwszResTypeName != L'\0' );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_RESOURCE_TYPE << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cb = 512;

    TracePrint(( "GetResourceTypeValueList entry\n" ));

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get values.
	//
	_sc = ScAllocValueList( _cb );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterResourceTypeControl(
						hCluster,
						pwszResTypeName,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhValueList.pb,
						m_cbBufferSize,
						&_cb
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocValueList( _cb );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterResourceTypeControl(
								hCluster,
								pwszResTypeName,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhValueList.pb,
								m_cbBufferSize,
								&_cb
								);
			} // if: ScAllocValueList succeeded
		} // if: buffer too small
	} // if: ScAllocValueList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeleteValueList();
	} // if: error getting properties.
	else
	{
		m_cbDataSize = _cb;
		m_cbDataLeft = _cb;
	} // else: no errors

	return _sc;

} //*** CClusPropValueList::ScGetResourceTypeValueList()


//*************************************************************************//


/////////////////////////////////////////////////////////////////////////////
// CClusPropList class
/////////////////////////////////////////////////////////////////////////////

#ifdef __AFX_H__
IMPLEMENT_DYNAMIC( CClusPropList, CObject );
#endif // __AFX_H__

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScCopy
//
//	Description:
//		Copy a property list.  This function is equivalent to an assignment
//		operator.  Since this operation can fail, no assignment operator is
//		provided.
//
//	Arguments:
//		pcplPropList	[IN] The proplist to copy into this instance.
//		cbListSize		[IN] The total size of the prop list.
//
//	Return Value:
//		Win32 status code.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScCopy(
	IN const PCLUSPROP_LIST	pcplPropList,
	IN DWORD				cbListSize
	)
{
	ASSERT( pcplPropList != NULL );

	DWORD	_sc = ERROR_SUCCESS;

	//
	// Clean up any vestiges of a previous prop list.
	//
	if ( m_cbhPropList.pb != NULL )
	{
		DeletePropList();
	} // if: the current list is not empty

	//
	// Allocate the new property list buffer.  If successful,
	// copy the source list.
	//
	m_cbhPropList.pb = new BYTE[ cbListSize ];
	if ( m_cbhPropList.pb != NULL )
	{
		CopyMemory( m_cbhPropList.pList, pcplPropList, cbListSize );
		m_cbBufferSize = cbListSize;
		m_cbDataSize   = cbListSize;
		m_cbDataLeft   = cbListSize;
		_sc = ScMoveToFirstProperty();
	} // if: new succeeded
	else
	{
		_sc = ERROR_NOT_ENOUGH_MEMORY;
	} // else:

	return _sc;

} //*** CClusPropList::ScCopy()

////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScMoveToFirstProperty
//
//	Description:
//		Move the cursor to the first property in the list.
//
//	Arguments:
//		None.
//
//	Return Value:
//		ERROR_SUCCESS		Position moved to the first property successfully.
//		ERROR_NO_MORE_ITEMS	There are no properties in the list.
//		ERROR_INVALID_DATA	Not enough data in the buffer.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScMoveToFirstProperty( void )
{
	ASSERT( m_cbhPropList.pb != NULL );
	ASSERT( m_cbDataSize >= sizeof( m_cbhPropList.pList->nPropertyCount ) );

	DWORD					_sc;
	DWORD					_cbDataLeft;
	DWORD					_cbDataSize;
	CLUSPROP_BUFFER_HELPER	_cbhCurrentValue;

    TracePrint(( "MoveToFirstProperty: entry\n" ));

	do
	{
		//
		// Make sure the buffer is big enough for the list header.
		//
		if ( m_cbDataSize < sizeof( m_cbhPropList.pList->nPropertyCount ) )
		{
			_sc = ERROR_INVALID_DATA;
			break;
		} // if: not enough data

		//
		// Set the property counter to the number of properties in the list.
		//
		m_nPropsRemaining = m_cbhPropList.pList->nPropertyCount;

		//
		// Point the name pointer to the first name in the list.
		//
		m_cbhCurrentPropName.pName = &m_cbhPropList.pList->PropertyName;
		m_cbDataLeft = m_cbDataSize - sizeof( m_cbhPropList.pList->nPropertyCount );

		//
		// Check to see if there are any properties in the list.
		//
		if ( m_nPropsRemaining == 0 )
		{
            TracePrint(( "MoveToFirstProperty: no properties found!\n" ));
			_sc = ERROR_NO_MORE_ITEMS;
			break;
		} // if: no properties in the list

		//
		// Make sure the buffer is big enough for the first property name.
		//
		if ( m_cbDataLeft < sizeof( *m_cbhCurrentPropName.pName ) )
		{
			_sc = ERROR_INVALID_DATA;
			break;
		} // if: not enough data left

		//
		// Calculate how much to advance the buffer pointer.
		//
		_cbDataSize = sizeof( *m_cbhCurrentPropName.pName )
					+ ALIGN_CLUSPROP( m_cbhCurrentPropName.pName->cbLength );

		//
		// Make sure the buffer is big enough for the name header
		// and the data itself.
		//
		if ( m_cbDataLeft < _cbDataSize )
		{
			_sc = ERROR_INVALID_DATA;
			break;
		} // if: not enough data left

		//
		// Point the value buffer to the first value in the list.
		//
        //TracePrint(( "MoveToFirstProperty: First Property Name = %ws, props remain = %u\n", _cbhCurrentValue.pStringValue->sz, m_nPropsRemaining ));
		_cbhCurrentValue.pb = m_cbhCurrentPropName.pb + _cbDataSize;
		_cbDataLeft = m_cbDataLeft - _cbDataSize;
		m_pvlValues.Init( _cbhCurrentValue, _cbDataLeft );

		//
		// Indicate we are successful.
		//
		_sc = ERROR_SUCCESS;

	} while ( 0 );

	//_cbhCurrentValue = m_pvlValues;
    //TracePrint(( "MoveToFirstProperty: First Property Name = %ws, props remain = %u\n", _cbhCurrentValue.pStringValue->sz, m_nPropsRemaining ));

    TracePrint(( "MoveToFirstProperty: exit\n" ));

	return _sc;

} //*** CClusPropList::ScMoveToFirstProperty

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScMoveToNextProperty
//
//	Description:
//		Move the cursor to the next property in the list.
//
//	Arguments:
//		None.
//
//	Return Value:
//		ERROR_SUCCESS		Position moved to the next property successfully.
//		ERROR_NO_MORE_ITEMS	Already at the end of the list.
//		ERROR_INVALID_DATA	Not enough data in the buffer.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScMoveToNextProperty( void )
{
	ASSERT( m_cbhPropList.pb != NULL );
	ASSERT( m_pvlValues.CbhValueList().pb != NULL );

	DWORD					_sc;
	DWORD					_cbNameSize;
	DWORD					_cbDataLeft;
	DWORD					_cbDataSize;
	CLUSPROP_BUFFER_HELPER	_cbhCurrentValue;
	CLUSPROP_BUFFER_HELPER	_cbhPropName;

	_cbhCurrentValue = m_pvlValues;
	_cbDataLeft = m_pvlValues.CbDataLeft();

    //TracePrint(( "CClusPropList:ScMoveToNextProperty  entry\n" ));

	//
	// If we aren't already at the last property, attempt to move to the next one.
	//
	_sc = ScCheckIfAtLastProperty();
	if ( _sc == ERROR_SUCCESS )
	{
		do
		{
			//
			// Make sure the buffer is big enough for the value header.
			//
			if ( _cbDataLeft < sizeof( *_cbhCurrentValue.pValue ) )
			{
				_sc = ERROR_INVALID_DATA;
				break;
			} // if: not enough data left

			//
			// Careful!  Add offset only to cbhCurrentValue.pb.  Otherwise
			// pointer arithmetic will give undesirable results.
			//
			while ( _cbhCurrentValue.pSyntax->dw != CLUSPROP_SYNTAX_ENDMARK )
			{
				//
				// Make sure the buffer is big enough for the value
				// and an endmark.
				//
				_cbDataSize = sizeof( *_cbhCurrentValue.pValue )
							+ ALIGN_CLUSPROP( _cbhCurrentValue.pValue->cbLength );
				if ( _cbDataLeft < _cbDataSize + sizeof( *_cbhCurrentValue.pSyntax ) )
				{
					_sc = ERROR_INVALID_DATA;
					break;
				} // if: not enough data left

				//
				// Advance past the value.
				//
				_cbhCurrentValue.pb += _cbDataSize;
				_cbDataLeft -= _cbDataSize;
			} // while: not at endmark

			if ( _sc != ERROR_SUCCESS )
			{
				break;
			} // if: error occurred in loop

			//
			// Advanced past the endmark.
			// Size check already performed in above loop.
			//
			_cbDataSize = sizeof( *_cbhCurrentValue.pSyntax );
			_cbhCurrentValue.pb += _cbDataSize;
			_cbDataLeft -= _cbDataSize;

			//
			// Point the name pointer to the next name in the list.
			//
			_cbhPropName = _cbhCurrentValue;
            //TracePrint(( "MoveToNextProperty: name = %ws\n", _cbhPropName.pStringValue->sz ));
			ASSERT( _cbDataLeft == m_cbDataSize - (_cbhPropName.pb - m_cbhPropList.pb) );

			//
			// Calculate the size of the name with header.
			// Make sure the buffer is big enough for the name and an endmark.
			//
			if ( _cbDataLeft < sizeof( *_cbhPropName.pName ) )
			{
				_sc = ERROR_INVALID_DATA;
				break;
			} // if: not enough data
			_cbNameSize = sizeof( *_cbhPropName.pName )
						+ ALIGN_CLUSPROP( _cbhPropName.pName->cbLength );
			if ( _cbDataLeft < _cbNameSize + sizeof( CLUSPROP_SYNTAX ) )
			{
				_sc = ERROR_INVALID_DATA;
				break;
			} // if: not enough data

			//
			// Point the value buffer to the first value in the list.
			//
			_cbhCurrentValue.pb = _cbhPropName.pb + _cbNameSize;
			m_cbhCurrentPropName = _cbhPropName;
			m_cbDataLeft = _cbDataLeft - _cbNameSize;
			m_pvlValues.Init( _cbhCurrentValue, m_cbDataLeft );

			//
			// We've successfully advanced to the next property,
			// so there is now one fewer property remaining.
			//
			--m_nPropsRemaining;
			ASSERT( m_nPropsRemaining >= 1 );

			_sc = ERROR_SUCCESS;

		} while ( 0 );
	} // if: not at last property

	return _sc;

} //*** CClusPropList::ScMoveToNextProperty()


/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScMoveToPropertyByName
//
//	Description:
//		Find the passed in property name in the proplist.  Note that the
//		cursor is reset to the beginning at the beginning of the routine and
//		the current state of the cursor is lost.
//
//	Arguments:
//		pwszPropName	[IN] Name of the property
//
//	Return Value:
//		TRUE if the property was found, FALSE if not.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScMoveToPropertyByName( IN LPCWSTR pwszPropName )
{
	ASSERT( m_cbhPropList.pb != NULL );

	DWORD	_sc;

	_sc = ScMoveToFirstProperty();
	if ( _sc == ERROR_SUCCESS )
	{
		do
		{
			//
			// See if this is the specified property.  If so, we're done.
			//
			if ( lstrcmpiW( m_cbhCurrentPropName.pName->sz, pwszPropName ) == 0 )
			{
				break;
			} // if: property found

			//
			// Advance to the next property.
			//
			_sc = ScMoveToNextProperty();

		} while ( _sc == ERROR_SUCCESS );	// do-while: not end of list
	} // if: successfully moved to the first property

	return _sc;

} //*** ClusPropList::ScMoveToPropertyByName( LPCWSTR )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAllocPropList
//
//	Description:
//		Allocate a property list buffer that's big enough to hold the next
//		property.
//
//	Arguments:
//		cbMinimum	[IN] Minimum size of the property list.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions thrown by new.  By default, no exceptions are thrown.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAllocPropList( IN DWORD cbMinimum )
{
	ASSERT( cbMinimum > 0 );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cbTotal = 0;

	//
	// Add the size of the item count and final endmark.
	//
	cbMinimum += sizeof( CLUSPROP_VALUE );
	_cbTotal = m_cbDataSize + cbMinimum;

	if ( m_cbBufferSize < _cbTotal )
	{
		PBYTE	_pbNewProplist = NULL;

		cbMinimum = max( BUFFER_GROWTH_FACTOR, cbMinimum );
		_cbTotal = m_cbDataSize + cbMinimum;

		//
		// Allocate and zero a new buffer.
		//
		_pbNewProplist = new BYTE[ _cbTotal ];
		if ( _pbNewProplist != NULL )
		{
			ZeroMemory( _pbNewProplist, _cbTotal );

			//
			// If there was a previous buffer, copy it and the delete it.
			//
			if ( m_cbhPropList.pb != NULL )
			{
				if ( m_cbDataSize != 0 )
				{
					CopyMemory( _pbNewProplist, m_cbhPropList.pb, m_cbDataSize );
				} // if: data already exists in buffer

				delete [] m_cbhPropList.pb;
				m_cbhCurrentProp.pb = _pbNewProplist + (m_cbhCurrentProp.pb - m_cbhPropList.pb);
			} // if: there was a previous buffer
			else
			{
				m_cbhCurrentProp.pb = _pbNewProplist + sizeof( DWORD ); // move past prop count
			} // else: no previous buffer

			//
			// Save the new buffer.
			//
			m_cbhPropList.pb = _pbNewProplist;
			m_cbBufferSize = _cbTotal;
		} // if: allocation succeeded
		else
		{
			_sc = ERROR_NOT_ENOUGH_MEMORY;
		} // else: allocation failed
	} // if: buffer isn't big enough

	return _sc;

} //*** CClusPropList::ScAllocPropList()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAddProp
//
//	Description:
//		Add a string property to a property list if it has changed.
//
//	Arguments:
//		pwszName		[IN] Name of the property.
//		pwszValue		[IN] Value of the property to set in the list.
//		pwszPrevValue	[IN] Previous value of the property.
//
//	Return Value:
//		ERROR_SUCCESS or other Win32 error code.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAddProp(
	IN LPCWSTR 	pwszName,
	IN LPCWSTR	pwszValue,
	IN LPCWSTR	pwszPrevValue
	)
{
	ASSERT( pwszName != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	BOOL					_bValuesDifferent = TRUE;
	PCLUSPROP_PROPERTY_NAME	_pName;
	PCLUSPROP_SZ			_pValue;

	if (( pwszPrevValue != NULL ) && ( lstrcmpW( pwszValue, pwszPrevValue ) == 0 ))
	{
		_bValuesDifferent = FALSE;
	} // if: we have a prev value and the values are the same

	//
	// If we should always add, or if the new value and the previous value
	// are not equal, add the property to the property list.
	//
	if ( m_bAlwaysAddProp || _bValuesDifferent )
	{
		DWORD	_cbNameSize;
		DWORD	_cbDataSize;
		DWORD	_cbValueSize;

		//
		// Calculate sizes and make sure we have a property list.
		//
		_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
					+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
		_cbDataSize = (lstrlenW( pwszValue ) + 1) * sizeof( WCHAR );
		_cbValueSize = sizeof( CLUSPROP_SZ )
					+ ALIGN_CLUSPROP( _cbDataSize )
					+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

		_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
		if ( _sc == ERROR_SUCCESS )
		{
			//
			// Set the property name.
			//
			_pName = m_cbhCurrentProp.pName;
			CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
			m_cbhCurrentProp.pb += _cbNameSize;

			//
			// Set the property value.
			//
			_pValue = m_cbhCurrentProp.pStringValue;
			CopyProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, pwszValue, _cbDataSize );
			m_cbhCurrentProp.pb += _cbValueSize;

			//
			// Increment the property count and buffer size.
			//
			m_cbhPropList.pList->nPropertyCount++;
			m_cbDataSize += _cbNameSize + _cbValueSize;
		} // if: ScAllocPropList successfully grew the proplist

	} // if: the value has changed

	return _sc;

} //*** CClusPropList::ScAddProp( LPCWSTR )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAddMultiSzProp
//
//	Description:
//		Add a string property to a property list if it has changed.
//
//	Arguments:
//		pwszName		[IN] Name of the property.
//		pwszValue		[IN] Value of the property to set in the list.
//		pwszPrevValue	[IN] Previous value of the property.
//
//	Return Value:
//		ERROR_SUCCESS or other Win32 error code.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAddMultiSzProp(
	IN LPCWSTR 	pwszName,
	IN LPCWSTR	pwszValue,
	IN LPCWSTR	pwszPrevValue
	)
{
	ASSERT( pwszName != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	BOOL					_bValuesDifferent = TRUE;
	PCLUSPROP_PROPERTY_NAME	_pName;
	PCLUSPROP_MULTI_SZ		_pValue;

	if ( ( pwszPrevValue != NULL ) && ( NCompareMultiSz( pwszValue, pwszPrevValue ) == 0 ) )
	{
		_bValuesDifferent = FALSE;
	} // if: we have a prev value and the values are the same

	//
	// If we should always add, or if the new value and the previous value
	// are not equal, add the property to the property list.
	//
	if ( m_bAlwaysAddProp || _bValuesDifferent )
	{
		DWORD	_cbNameSize;
		DWORD	_cbDataSize;
		DWORD	_cbValueSize;

		//
		// Calculate sizes and make sure we have a property list.
		//
		_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
					+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
		_cbDataSize = (CchMultiSz( pwszValue ) + 1) * sizeof( WCHAR );
		_cbValueSize = sizeof( CLUSPROP_SZ )
					+ ALIGN_CLUSPROP( _cbDataSize )
					+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

		_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
		if ( _sc == ERROR_SUCCESS )
		{
			//
			// Set the property name.
			//
			_pName = m_cbhCurrentProp.pName;
			CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
			m_cbhCurrentProp.pb += _cbNameSize;

			//
			// Set the property value.
			//
			_pValue = m_cbhCurrentProp.pMultiSzValue;
			CopyMultiSzProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, pwszValue, _cbDataSize );
			m_cbhCurrentProp.pb += _cbValueSize;

			//
			// Increment the property count and buffer size.
			//
			m_cbhPropList.pList->nPropertyCount++;
			m_cbDataSize += _cbNameSize + _cbValueSize;
		} // if: ScAllocPropList successfully grew the proplist

	} // if: the value has changed

	return _sc;

} //*** CClusPropList::ScAddMultiSzProp( LPCWSTR )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAddExpandSzProp
//
//	Description:
//		Add an EXPAND_SZ string property to a property list if it has changed.
//
//	Arguments:
//		pwszName		[IN] Name of the property.
//		pwszValue		[IN] Value of the property to set in the list.
//		pwszPrevValue	[IN] Previous value of the property.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAddExpandSzProp(
	IN LPCWSTR	pwszName,
	IN LPCWSTR	pwszValue,
	IN LPCWSTR	pwszPrevValue
	)
{
	ASSERT( pwszName != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	BOOL					_bValuesDifferent = TRUE;
	PCLUSPROP_PROPERTY_NAME	_pName;
	PCLUSPROP_SZ			_pValue;

	if ( ( pwszPrevValue != NULL ) && ( lstrcmpW( pwszValue, pwszPrevValue ) == 0 ) )
	{
		_bValuesDifferent = FALSE;
	} // if: we have a prev value and the values are the same

	//
	// If we should always add, or if the new value and the previous value
	// are not equal, add the property to the property list.
	//
	if ( m_bAlwaysAddProp || _bValuesDifferent )
	{
		DWORD	_cbNameSize;
		DWORD	_cbDataSize;
		DWORD	_cbValueSize;

		//
		// Calculate sizes and make sure we have a property list.
		//
		_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
					+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
		_cbDataSize = (lstrlenW( pwszValue ) + 1) * sizeof( WCHAR );
		_cbValueSize = sizeof( CLUSPROP_SZ )
					+ ALIGN_CLUSPROP( _cbDataSize )
					+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

		_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
		if ( _sc == ERROR_SUCCESS )
		{
			//
			// Set the property name.
			//
			_pName = m_cbhCurrentProp.pName;
			CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
			m_cbhCurrentProp.pb += _cbNameSize;

			//
			// Set the property value.
			//
			_pValue = m_cbhCurrentProp.pStringValue;
			CopyExpandSzProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, pwszValue, _cbDataSize );
			m_cbhCurrentProp.pb += _cbValueSize;

			//
			// Increment the property count and buffer size.
			//
			m_cbhPropList.pList->nPropertyCount++;
			m_cbDataSize += _cbNameSize + _cbValueSize;
		} // if: ScAllocPropList successfully grew the proplist

	} // if: the value has changed

	return _sc;

} //*** CClusPropList::ScAddExpandSzProp( LPCWSTR )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAddProp
//
//	Description:
//		Add a DWORD property to a property list if it has changed.
//
//	Arguments:
//		pwszName		[IN] Name of the property.
//		nValue			[IN] Value of the property to set in the list.
//		nPrevValue		[IN] Previous value of the property.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAddProp(
	IN LPCWSTR	pwszName,
	IN DWORD	nValue,
	IN DWORD	nPrevValue
	)
{
	ASSERT( pwszName != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	PCLUSPROP_PROPERTY_NAME	_pName;
	PCLUSPROP_DWORD			_pValue;

	if ( m_bAlwaysAddProp || ( nValue != nPrevValue ) )
	{
		DWORD	_cbNameSize;
		DWORD	_cbValueSize;

		//
		// Calculate sizes and make sure we have a property list.
		//
		_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
					+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
		_cbValueSize = sizeof( CLUSPROP_DWORD )
					+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

		_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
		if ( _sc == ERROR_SUCCESS )
		{
			//
			// Set the property name.
			//
			_pName = m_cbhCurrentProp.pName;
			CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
			m_cbhCurrentProp.pb += _cbNameSize;

			//
			// Set the property value.
			//
			_pValue = m_cbhCurrentProp.pDwordValue;
			CopyProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, nValue );
			m_cbhCurrentProp.pb += _cbValueSize;

			//
			// Increment the property count and buffer size.
			//
			m_cbhPropList.pList->nPropertyCount++;
			m_cbDataSize += _cbNameSize + _cbValueSize;
		} // if: ScAllocPropList successfully grew the proplist

	} // if: the value has changed

	return _sc;

} //*** CClusPropList::ScAddProp( DWORD )

#if CLUSAPI_VERSION >= 0x0500

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAddProp
//
//	Description:
//		Add a LONG property to a property list if it has changed.
//
//	Arguments:
//		pwszName		[IN] Name of the property.
//		nValue			[IN] Value of the property to set in the list.
//		nPrevValue		[IN] Previous value of the property.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAddProp(
	IN LPCWSTR	pwszName,
	IN LONG		nValue,
	IN LONG		nPrevValue
	)
{
	ASSERT( pwszName != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	PCLUSPROP_PROPERTY_NAME	_pName;
	PCLUSPROP_LONG			_pValue;

	if ( m_bAlwaysAddProp || ( nValue != nPrevValue ) )
	{
		DWORD	_cbNameSize;
		DWORD	_cbValueSize;

		//
		// Calculate sizes and make sure we have a property list.
		//
		_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
					+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
		_cbValueSize = sizeof( CLUSPROP_LONG )
					+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

		_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
		if ( _sc == ERROR_SUCCESS )
		{
			//
			// Set the property name.
			//
			_pName = m_cbhCurrentProp.pName;
			CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
			m_cbhCurrentProp.pb += _cbNameSize;

			//
			// Set the property value.
			//
			_pValue = m_cbhCurrentProp.pLongValue;
			CopyProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, nValue );
			m_cbhCurrentProp.pb += _cbValueSize;

			//
			// Increment the property count and buffer size.
			//
			m_cbhPropList.pList->nPropertyCount++;
			m_cbDataSize += _cbNameSize + _cbValueSize;
		} // if: ScAllocPropList successfully grew the proplist

	} // if: the value has changed

	return _sc;

} //*** CClusPropList::ScAddProp( LONG )

#endif // CLUSAPI_VERSION >= 0x0500

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAddProp
//
//	Description:
//		Add a binary property to a property list if it has changed.
//
//	Arguments:
//		pwszName		[IN] Name of the property.
//		pbValue			[IN] Value of the property to set in the list.
//		cbValue			[IN] Count of bytes in pbValue.
//		pbPrevValue		[IN] Previous value of the property.
//		cbPrevValue		[IN] Count of bytes in pbPrevValue.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAddProp(
	IN LPCWSTR			pwszName,
	IN const PBYTE		pbValue,
	IN DWORD			cbValue,
	IN const PBYTE		pbPrevValue,
	IN DWORD			cbPrevValue
	)
{
	ASSERT( pwszName != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	BOOL					bChanged = FALSE;
	PCLUSPROP_PROPERTY_NAME	_pName;
	PCLUSPROP_BINARY		_pValue;

	//
	// Determine if the buffer has changed.
	//
	if ( m_bAlwaysAddProp || (cbValue != cbPrevValue) )
	{
		bChanged = TRUE;
	} // if: always adding the property or the value size changed
	else if ( ( cbValue != 0 ) && ( cbPrevValue != 0 ) )
	{
		bChanged = memcmp( pbValue, pbPrevValue, cbValue ) != 0;
	} // else if: value length changed

	if ( bChanged )
	{
		DWORD	_cbNameSize;
		DWORD	_cbValueSize;

		//
		// Calculate sizes and make sure we have a property list.
		//
		_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
					+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
		_cbValueSize = sizeof( CLUSPROP_BINARY )
					+ ALIGN_CLUSPROP( cbValue )
					+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

		_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
		if ( _sc == ERROR_SUCCESS )
		{
			//
			// Set the property name.
			//
			_pName = m_cbhCurrentProp.pName;
			CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
			m_cbhCurrentProp.pb += _cbNameSize;

			//
			// Set the property value.
			//
			_pValue = m_cbhCurrentProp.pBinaryValue;
			CopyProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, pbValue, cbValue );
			m_cbhCurrentProp.pb += _cbValueSize;

			//
			// Increment the property count and buffer size.
			//
			m_cbhPropList.pList->nPropertyCount++;
			m_cbDataSize += _cbNameSize + _cbValueSize;
		} // if: ScAllocPropList successfully grew the proplist

	} // if: the value has changed

	return _sc;

} //*** CClusPropList::ScAddProp( PBYTE )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScAddProp
//
//	Routine Description:
//		Add a ULONGLONG property to a property list if it has changed.
//
//	Arguments:
//		pwszName		[IN] Name of the property.
//		ullValue		[IN] Value of the property to set in the list.
//		ullPrevValue	[IN] Previous value of the property.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScAddProp(
	IN LPCWSTR		pwszName,
	IN ULONGLONG	ullValue,
	IN ULONGLONG	ullPrevValue
	)
{
	ASSERT( pwszName != NULL );

	DWORD						_sc = ERROR_SUCCESS;
	PCLUSPROP_PROPERTY_NAME		_pName;
	PCLUSPROP_ULARGE_INTEGER	_pValue;

	if ( m_bAlwaysAddProp || ( ullValue != ullPrevValue ) )
	{
		DWORD	_cbNameSize;
		DWORD	_cbValueSize;

		//
		// Calculate sizes and make sure we have a property list.
		//
		_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
					+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
		_cbValueSize = sizeof( CLUSPROP_ULARGE_INTEGER )
					+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

		_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
		if ( _sc == ERROR_SUCCESS )
		{
			//
			// Set the property name.
			//
			_pName = m_cbhCurrentProp.pName;
			CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
			m_cbhCurrentProp.pb += _cbNameSize;

			//
			// Set the property value.
			//
			_pValue = m_cbhCurrentProp.pULargeIntegerValue;
			CopyProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, ullValue );
			m_cbhCurrentProp.pb += _cbValueSize;

			//
			// Increment the property count and buffer size.
			//
			m_cbhPropList.pList->nPropertyCount++;
			m_cbDataSize += _cbNameSize + _cbValueSize;
		} // if: ScAllocPropList successfully grew the proplist

	} // if: the value has changed

	return _sc;

} //*** CClusPropList::ScAddProp( ULONGLONG )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScSetPropToDefault
//
//	Description:
//		Add a property to the property list so that it will revert to its
//		default value.
//
//	Arguments:
//		pwszName	[IN] Name of the property.
//		cpfPropFmt	[IN] Format of property
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScSetPropToDefault(
	IN LPCWSTR					pwszName,
	IN CLUSTER_PROPERTY_FORMAT	cpfPropFmt
	)
{
	ASSERT( pwszName != NULL );

	DWORD					_sc = ERROR_SUCCESS;
	DWORD					_cbNameSize;
	DWORD					_cbValueSize;
	PCLUSPROP_PROPERTY_NAME	_pName;
	PCLUSPROP_VALUE			_pValue;

	// Calculate sizes and make sure we have a property list.
	_cbNameSize = sizeof( CLUSPROP_PROPERTY_NAME )
				+ ALIGN_CLUSPROP( (lstrlenW( pwszName ) + 1) * sizeof( WCHAR ) );
	_cbValueSize = sizeof( CLUSPROP_BINARY )
				+ sizeof( CLUSPROP_SYNTAX ); // value list endmark

	_sc = ScAllocPropList( _cbNameSize + _cbValueSize );
	if ( _sc == ERROR_SUCCESS )
	{
		//
		// Set the property name.
		//
		_pName = m_cbhCurrentProp.pName;
		CopyProp( _pName, CLUSPROP_TYPE_NAME, pwszName );
		m_cbhCurrentProp.pb += _cbNameSize;

		//
		// Set the property value.
		//
		_pValue = m_cbhCurrentProp.pValue;
		CopyEmptyProp( _pValue, CLUSPROP_TYPE_LIST_VALUE, cpfPropFmt );
		m_cbhCurrentProp.pb += _cbValueSize;

		//
		// Increment the property count and buffer size.
		//
		m_cbhPropList.pList->nPropertyCount++;
		m_cbDataSize += _cbNameSize + _cbValueSize;
	} // if:

	return _sc;

} //*** CClusPropList::ScSetPropToDefault()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyProp
//
//	Description:
//		Copy a string property to a property structure.
//
//	Arguments:
//		pprop		[OUT] Property structure to fill.
//		cptPropType	[IN] Type of string.
//		psz			[IN] String to copy.
//		cbsz		[IN] Count of bytes in pwsz string.  If specified as 0,
//						the the length will be determined by a call to strlen.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyProp(
	OUT PCLUSPROP_SZ			pprop,
	IN CLUSTER_PROPERTY_TYPE	cptPropType,
	IN LPCWSTR					psz,
	IN size_t					cbsz		// = 0
	)
{
	ASSERT( pprop != NULL );
	ASSERT( psz != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

	pprop->Syntax.wFormat = CLUSPROP_FORMAT_SZ;
	pprop->Syntax.wType = static_cast< WORD >( cptPropType );
	if ( cbsz == 0 )
	{
		cbsz = (lstrlenW( psz ) + 1) * sizeof( WCHAR );
	} // if: zero size specified
	ASSERT( cbsz == (lstrlenW( psz ) + 1) * sizeof( WCHAR ) );
	pprop->cbLength = cbsz;
	lstrcpyW( pprop->sz, psz );

	//
	// Set an endmark.
	//
	_cbhProps.pStringValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pStringValue ) + ALIGN_CLUSPROP( cbsz );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyProp()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyMultiSzProp
//
//	Description:
//		Copy a MULTI_SZ string property to a property structure.
//
//	Arguments:
//		pprop		[OUT] Property structure to fill.
//		cptPropType	[IN] Type of string.
//		psz			[IN] String to copy.
//		cbsz		[IN] Count of bytes in psz string.  If specified as 0,
//						the the length will be determined by calls to strlen.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyMultiSzProp(
	OUT PCLUSPROP_MULTI_SZ		pprop,
	IN CLUSTER_PROPERTY_TYPE	cptPropType,
	IN LPCWSTR					psz,
	IN size_t					cbsz
	)
{
	ASSERT( pprop != NULL );
	ASSERT( psz != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

	pprop->Syntax.wFormat = CLUSPROP_FORMAT_MULTI_SZ;
	pprop->Syntax.wType = static_cast< WORD >( cptPropType );
	if ( cbsz == 0 )
	{
		cbsz = (CchMultiSz( psz ) + 1) * sizeof( WCHAR );
	} // if: zero size specified
	ASSERT( cbsz == (CchMultiSz( psz ) + 1) * sizeof( WCHAR ) );
	pprop->cbLength = cbsz;
	CopyMemory( pprop->sz, psz, cbsz );

	//
	// Set an endmark.
	//
	_cbhProps.pMultiSzValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pMultiSzValue ) + ALIGN_CLUSPROP( cbsz );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyMultiSzProp()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyExpandSzProp
//
//	Description:
//		Copy an EXPAND_SZ string property to a property structure.
//
//	Arguments:
//		pprop		[OUT] Property structure to fill.
//		cptPropType	[IN] Type of string.
//		psz			[IN] String to copy.
//		cbsz		[IN] Count of bytes in psz string.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyExpandSzProp(
	OUT PCLUSPROP_SZ			pprop,
	IN CLUSTER_PROPERTY_TYPE	cptPropType,
	IN LPCWSTR					psz,
	IN size_t					cbsz
	)
{
	ASSERT( pprop != NULL );
	ASSERT( psz != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

	pprop->Syntax.wFormat = CLUSPROP_FORMAT_EXPAND_SZ;
	pprop->Syntax.wType = static_cast< WORD >( cptPropType );
	if ( cbsz == 0 )
	{
		cbsz = (lstrlenW( psz ) + 1) * sizeof( WCHAR );
	} // if: cbsz == 0
	ASSERT( cbsz == (lstrlenW( psz ) + 1) * sizeof( WCHAR ) );
	pprop->cbLength = cbsz;
	lstrcpyW( pprop->sz, psz );

	//
	// Set an endmark.
	//
	_cbhProps.pStringValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pStringValue ) + ALIGN_CLUSPROP( cbsz );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyExpandSzProp()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyProp
//
//	Description:
//		Copy a DWORD property to a property structure.
//
//	Arguments:
//		pprop		[OUT] Property structure to fill.
//		cptPropType	[IN] Type of DWORD.
//		nValue		[IN] Property value to copy.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyProp(
	OUT PCLUSPROP_DWORD			pprop,
	IN CLUSTER_PROPERTY_TYPE	cptPropType,
	IN DWORD					nValue
	)
{
	ASSERT( pprop != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

	pprop->Syntax.wFormat = CLUSPROP_FORMAT_DWORD;
	pprop->Syntax.wType = static_cast< WORD >( cptPropType );
	pprop->cbLength = sizeof( DWORD );
	pprop->dw = nValue;

	//
	// Set an endmark.
	//
	_cbhProps.pDwordValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pDwordValue );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyProp( DWORD )

#if CLUSAPI_VERSION >= 0x0500

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyProp
//
//	Description:
//		Copy a LONG property to a property structure.
//
//	Arguments:
//		pprop		[OUT] Property structure to fill.
//		cptPropType	[IN] Type of LONG.
//		nValue		[IN] Property value to copy.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyProp(
	OUT PCLUSPROP_LONG			pprop,
	IN CLUSTER_PROPERTY_TYPE	cptPropType,
	IN LONG						nValue
	)
{
	ASSERT( pprop != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

	pprop->Syntax.wFormat = CLUSPROP_FORMAT_LONG;
	pprop->Syntax.wType = static_cast< WORD >( cptPropType );
	pprop->cbLength = sizeof( DWORD );
	pprop->l = nValue;

	//
	// Set an endmark.
	//
	_cbhProps.pLongValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pLongValue );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyProp( LONG )

#endif // CLUSAPI_VERSION >= 0x0500

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyProp
//
//	Description:
//		Copy a ULONGLONG property to a property structure.
//
//	Arguments:
//		pprop		[OUT]	Property structure to fill.
//		proptype	[IN]	Type of LONG.
//		nValue		[IN]	Property value to copy.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyProp(
	OUT	PCLUSPROP_ULARGE_INTEGER	pprop,
	IN	CLUSTER_PROPERTY_TYPE		proptype,
	IN	ULONGLONG					nValue
	)
{
	ASSERT( pprop != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

	pprop->Syntax.wFormat = CLUSPROP_FORMAT_ULARGE_INTEGER;
	pprop->Syntax.wType = static_cast< WORD >( proptype );
	pprop->cbLength = sizeof( ULONGLONG );
	pprop->li.QuadPart = nValue;

	//
	// Set an endmark.
	//
	_cbhProps.pULargeIntegerValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pULargeIntegerValue );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyProp( ULONGLONG )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyProp
//
//	Description:
//		Copy a binary property to a property structure.
//
//	Arguments:
//		pprop		[OUT] Property structure to fill.
//		cptPropType	[IN] Type of string.
//		pb			[IN] Block to copy.
//		cbsz		[IN] Count of bytes in pb buffer.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyProp(
	OUT PCLUSPROP_BINARY		pprop,
	IN CLUSTER_PROPERTY_TYPE	cptPropType,
	IN const PBYTE				pb,
	IN size_t					cb
	)
{
	ASSERT( pprop != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

	pprop->Syntax.wFormat = CLUSPROP_FORMAT_BINARY;
	pprop->Syntax.wType = static_cast< WORD >( cptPropType );
	pprop->cbLength = cb;
	if ( cb > 0 )
	{
		CopyMemory( pprop->rgb, pb, cb );
	} // if: non-zero data length

	//
	// Set an endmark.
	//
	_cbhProps.pBinaryValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pStringValue ) + ALIGN_CLUSPROP( cb );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyProp( PBYTE )

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::CopyEmptyProp
//
//	Description:
//		Copy an empty property to a property structure.
//
//	Arguments:
//		pprop		[OUT] Property structure to fill.
//		cptPropType	[IN] Type of property.
//		cpfPropFmt	[IN] Format of property.
//
//	Return Value:
//		None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CClusPropList::CopyEmptyProp(
	OUT PCLUSPROP_VALUE			pprop,
	IN CLUSTER_PROPERTY_TYPE	cptPropType,
	IN CLUSTER_PROPERTY_FORMAT	cptPropFmt
	)
{
	ASSERT( pprop != NULL );

	CLUSPROP_BUFFER_HELPER	_cbhProps;

    pprop->Syntax.wFormat = static_cast< WORD >( cptPropFmt );
    pprop->Syntax.wType = static_cast< WORD >( cptPropType );
    pprop->cbLength = 0;

	//
	// Set an endmark.
	//
	_cbhProps.pValue = pprop;
	_cbhProps.pb += sizeof( *_cbhProps.pValue );
	_cbhProps.pSyntax->dw = CLUSPROP_SYNTAX_ENDMARK;

} //*** CClusPropList::CopyEmptyProp()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScGetNodeProperties
//
//	Description:
//		Get properties on a node.
//
//	Arguments:
//		hNode			[IN] Handle for the node to get properties from.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropList::ScAllocPropList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScGetNodeProperties(
	IN HNODE		hNode,
	IN DWORD		dwControlCode,
	IN HNODE		hHostNode,
	IN LPVOID		lpInBuffer,
	IN DWORD		cbInBufferSize
	)
{
	ASSERT( hNode != NULL );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_NODE << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cbProps = 256;

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get properties.
	//
	_sc = ScAllocPropList( _cbProps );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterNodeControl(
						hNode,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhPropList.pb,
						m_cbBufferSize,
						&_cbProps
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocPropList( _cbProps );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterNodeControl(
								hNode,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhPropList.pb,
								m_cbBufferSize,
								&_cbProps
							);
			} // if: ScAllocPropList succeeded
		} // if: buffer too small
	} // if: ScAllocPropList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeletePropList();
	} // if: error getting properties.
	else
	{
		m_cbDataSize = _cbProps;
		m_cbDataLeft = _cbProps;
	} // else: no errors

	return _sc;

} //*** CClusPropList::ScGetNodeProperties()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScGetGroupProperties
//
//	Description:
//		Get properties on a group.
//
//	Arguments:
//		hGroup			[IN] Handle for the group to get properties from.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropList::ScAllocPropList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScGetGroupProperties(
	IN HGROUP		hGroup,
	IN DWORD		dwControlCode,
	IN HNODE		hHostNode,
	IN LPVOID		lpInBuffer,
	IN DWORD		cbInBufferSize
	)
{
	ASSERT( hGroup != NULL );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_GROUP << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cbProps = 256;

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get properties.
	//
	_sc = ScAllocPropList( _cbProps );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterGroupControl(
						hGroup,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhPropList.pb,
						m_cbBufferSize,
						&_cbProps
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocPropList( _cbProps );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterGroupControl(
								hGroup,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhPropList.pb,
								m_cbBufferSize,
								&_cbProps
								);
			} // if: ScAllocPropList succeeded
		} // if: buffer too small
	} // if: ScAllocPropList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeletePropList();
	} // if: error getting properties.
	else
	{
		m_cbDataSize = _cbProps;
		m_cbDataLeft = _cbProps;
	} // else: no errors

	return _sc;

} //*** CClusPropList::ScGetGroupProperties()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScGetResourceProperties
//
//	Description:
//		Get properties on a resource.
//
//	Arguments:
//		hResource		[IN] Handle for the resource to get properties from.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropList::ScAllocPropList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScGetResourceProperties(
	IN HRESOURCE	hResource,
	IN DWORD		dwControlCode,
	IN HNODE		hHostNode,
	IN LPVOID		lpInBuffer,
	IN DWORD		cbInBufferSize
	)
{
	ASSERT( hResource != NULL );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_RESOURCE << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cbProps = 256;

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get properties.
	//
	_sc = ScAllocPropList( _cbProps );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterResourceControl(
						hResource,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhPropList.pb,
						m_cbBufferSize,
						&_cbProps
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocPropList( _cbProps );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterResourceControl(
								hResource,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhPropList.pb,
								m_cbBufferSize,
								&_cbProps
								);
			} // if: ScAllocPropList succeeded
		} // if: buffer too small
	} // if: ScAllocPropList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeletePropList();
	} // if: error getting properties.
	else
	{
		m_cbDataSize = _cbProps;
		m_cbDataLeft = _cbProps;
	} // else: no errors

	return _sc;

} //*** CClusPropList::ScGetResourceProperties()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScGetResourceTypeProperties
//
//	Description:
//		Get properties on a resource type.
//
//	Arguments:
//		hCluster		[IN] Handle for the cluster in which the resource
//							type resides.
//		pwszResTypeName	[IN] Name of the resource type.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropList::ScAllocPropList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScGetResourceTypeProperties(
	IN HCLUSTER		hCluster,
	IN LPCWSTR		pwszResTypeName,
	IN DWORD		dwControlCode,
	IN HNODE		hHostNode,
	IN LPVOID		lpInBuffer,
	IN DWORD		cbInBufferSize
	)
{
	ASSERT( hCluster != NULL );
	ASSERT( pwszResTypeName != NULL );
	ASSERT( *pwszResTypeName != L'\0' );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_RESOURCE_TYPE << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cbProps = 256;

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get properties.
	//
	_sc = ScAllocPropList( _cbProps );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterResourceTypeControl(
						hCluster,
						pwszResTypeName,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhPropList.pb,
						m_cbBufferSize,
						&_cbProps
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocPropList( _cbProps );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterResourceTypeControl(
								hCluster,
								pwszResTypeName,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhPropList.pb,
								m_cbBufferSize,
								&_cbProps
								);
			} // if: ScAllocPropList succeeded
		} // if: buffer too small
	} // if: ScAllocPropList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeletePropList();
	} // if: error getting properties.
	else
	{
		m_cbDataSize = _cbProps;
		m_cbDataLeft = _cbProps;
	} // else: no errors

	return _sc;

} //*** CClusPropList::ScGetResourceTypeProperties()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScGetNetworkProperties
//
//	Description:
//		Get properties on a network.
//
//	Arguments:
//		hNetwork		[IN] Handle for the network to get properties from.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropList::ScAllocPropList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScGetNetworkProperties(
	IN HNETWORK		hNetwork,
	IN DWORD		dwControlCode,
	IN HNODE		hHostNode,
	IN LPVOID		lpInBuffer,
	IN DWORD		cbInBufferSize
	)
{
	ASSERT( hNetwork != NULL );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_NETWORK << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc = ERROR_SUCCESS;
	DWORD	_cbProps = 256;

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get properties.
	//
	_sc = ScAllocPropList( _cbProps );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterNetworkControl(
						hNetwork,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhPropList.pb,
						m_cbBufferSize,
						&_cbProps
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocPropList( _cbProps );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterNetworkControl(
								hNetwork,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhPropList.pb,
								m_cbBufferSize,
								&_cbProps
								);
			} // if: ScAllocPropList succeeded
		} // if: buffer too small
	} // if: ScAllocPropList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeletePropList();
	} // if: error getting private properties.
	else
	{
		m_cbDataSize = _cbProps;
		m_cbDataLeft = _cbProps;
	} // else: no errors

	return _sc;

} //*** CClusPropList::ScGetNetworkProperties()

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScGetNetInterfaceProperties
//
//	Description:
//		Get properties on a network interface.
//
//	Arguments:
//		hNetInterface	[IN] Handle for the network interface to get properties from.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropList::ScAllocPropList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScGetNetInterfaceProperties(
	IN HNETINTERFACE	hNetInterface,
	IN DWORD			dwControlCode,
	IN HNODE			hHostNode,
	IN LPVOID			lpInBuffer,
	IN DWORD			cbInBufferSize
	)
{
	ASSERT( hNetInterface != NULL );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_NETINTERFACE << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc= ERROR_SUCCESS;
	DWORD	_cbProps = 256;

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get properties.
	//
	_sc = ScAllocPropList( _cbProps );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterNetInterfaceControl(
						hNetInterface,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhPropList.pb,
						m_cbBufferSize,
						&_cbProps
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocPropList( _cbProps );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterNetInterfaceControl(
								hNetInterface,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhPropList.pb,
								m_cbBufferSize,
								&_cbProps
								);
			} // if: ScAllocPropList succeeded
		} // if: buffer too small
	} // if: ScAllocPropList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeletePropList();
	} // if: error getting private properties.
	else
	{
		m_cbDataSize = _cbProps;
		m_cbDataLeft = _cbProps;
	} // else: no errors

	return _sc;

} //*** CClusPropList::ScGetNetInterfaceProperties()

#if CLUSAPI_VERSION >= 0x0500

/////////////////////////////////////////////////////////////////////////////
//++
//
//	CClusPropList::ScGetClusterProperties
//
//	Description:
//		Get properties on a cluster.
//
//	Arguments:
//		hCluster		[IN] Handle for the cluster to get properties from.
//		dwControlCode	[IN] Control code for the request.
//		hHostNode		[IN] Handle for the node to direct this request to.
//							Defaults to NULL.
//		lpInBuffer		[IN] Input buffer for the request.  Defaults to NULL.
//		cbInBufferSize	[IN] Size of the input buffer.  Defaults to 0.
//
//	Return Value:
//		None.
//
//	Exceptions Thrown:
//		Any exceptions CClusPropList::ScAllocPropList().
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD CClusPropList::ScGetClusterProperties(
	IN HCLUSTER	hCluster,
	IN DWORD	dwControlCode,
	IN HNODE	hHostNode,
	IN LPVOID	lpInBuffer,
	IN DWORD	cbInBufferSize
	)
{
	ASSERT( hCluster != NULL );
	ASSERT( (dwControlCode & (CLUSCTL_OBJECT_MASK << CLUSCTL_OBJECT_SHIFT))
			== (CLUS_OBJECT_CLUSTER << CLUSCTL_OBJECT_SHIFT) );

	DWORD	_sc= ERROR_SUCCESS;
	DWORD	_cbProps = 256;

	//
	// Overwrite anything that may be in the buffer.
	// Allows this class instance to be reused.
	//
	m_cbDataSize = 0;

	//
	// Get properties.
	//
	_sc = ScAllocPropList( _cbProps );
	if ( _sc == ERROR_SUCCESS )
	{
		_sc = ClusterControl(
						hCluster,
						hHostNode,
						dwControlCode,
						lpInBuffer,
						cbInBufferSize,
						m_cbhPropList.pb,
						m_cbBufferSize,
						&_cbProps
						);
		if ( _sc == ERROR_MORE_DATA )
		{
			_sc = ScAllocPropList( _cbProps );
			if ( _sc == ERROR_SUCCESS )
			{
				_sc = ClusterControl(
								hCluster,
								hHostNode,
								dwControlCode,
								lpInBuffer,
								cbInBufferSize,
								m_cbhPropList.pb,
								m_cbBufferSize,
								&_cbProps
								);
			} // if: ScAllocPropList succeeded
		} // if: buffer too small
	} // if: ScAllocPropList succeeded

	if ( _sc != ERROR_SUCCESS )
	{
		DeletePropList();
	} // if: error getting private properties.
	else
	{
		m_cbDataSize = _cbProps;
		m_cbDataLeft = _cbProps;
	} // else: no errors

	return _sc;

} //*** CClusPropList::ScGetClusterProperties()


#endif // CLUSAPI_VERSION >= 0x0500