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729 lines
16 KiB
729 lines
16 KiB
//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2001 Microsoft Corporation
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//
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// Module Name:
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// EnumIPAddresses.cpp
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//
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// Description:
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// CEnumIPAddress implementation.
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//
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// Maintained By:
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// Galen Barbee (GalenB) 24-MAY-2000
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//
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//////////////////////////////////////////////////////////////////////////////
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#include "Pch.h"
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#include "IPAddressInfo.h"
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#include "EnumIPAddresses.h"
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DEFINE_THISCLASS("CEnumIPAddresses")
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// ************************************************************************
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//
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// Constructor / Destructor
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//
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// ************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//
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// HRESULT
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// CEnumIPAddresses::S_HrCreateInstance(
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// IUnknown ** ppunkOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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HRESULT
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CEnumIPAddresses::S_HrCreateInstance(
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IUnknown ** ppunkOut
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)
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{
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TraceFunc( "" );
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HRESULT hr = S_OK;
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CEnumIPAddresses * peipa = NULL;
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Assert( ppunkOut != NULL );
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if ( ppunkOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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}
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peipa = new CEnumIPAddresses;
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if ( peipa == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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}
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hr = THR( peipa->HrInit() );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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hr = THR( peipa->TypeSafeQI( IUnknown, ppunkOut ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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Cleanup:
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if ( peipa != NULL )
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{
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peipa->Release();
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}
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HRETURN( hr );
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} //*** CEnumIPAddresses::S_HrCreateInstance
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//////////////////////////////////////////////////////////////////////////////
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//
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// CEnumIPAddresses::CEnumIPAddresses
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//
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//////////////////////////////////////////////////////////////////////////////
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CEnumIPAddresses::CEnumIPAddresses( void )
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: m_cRef( 1 )
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{
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TraceFunc( "" );
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InterlockedIncrement( &g_cObjects );
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TraceFuncExit();
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} //*** CEnumIPAddresses::CEnumIPAddresses
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::HrInit
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::HrInit( void )
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{
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TraceFunc( "" );
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HRESULT hr = S_OK;
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// IUnknown stuff
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Assert( m_cRef == 1 );
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// IEnumClusCfgIPAddresses
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HRETURN( hr );
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} //*** CEnumIPAddresses::HrInit
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//////////////////////////////////////////////////////////////////////////////
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//
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// CEnumIPAddresses::~CEnumIPAddresses
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//
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//////////////////////////////////////////////////////////////////////////////
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CEnumIPAddresses::~CEnumIPAddresses( void )
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{
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TraceFunc( "" );
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if ( m_pList != NULL )
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{
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while ( m_cAlloced != 0 )
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{
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m_cAlloced --;
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(m_pList[ m_cAlloced ])->Release();
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}
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}
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InterlockedDecrement( &g_cObjects );
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TraceFuncExit();
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} //*** CEnumIPAddresses::~CEnumIPAddresses
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// ************************************************************************
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//
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// IUnknown
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//
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// ************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CEnumIPAddresses::QueryInterface
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//
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// Description:
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// Query this object for the passed in interface.
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//
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// Arguments:
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// riidIn
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// Id of interface requested.
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//
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// ppvOut
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// Pointer to the requested interface.
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//
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// Return Value:
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// S_OK
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// If the interface is available on this object.
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//
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// E_NOINTERFACE
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// If the interface is not available.
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//
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// E_POINTER
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// ppvOut was NULL.
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//
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// Remarks:
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// None.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::QueryInterface(
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REFIID riidIn
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, LPVOID * ppvOut
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)
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{
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TraceQIFunc( riidIn, ppvOut );
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HRESULT hr = S_OK;
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//
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// Validate arguments.
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//
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Assert( ppvOut != NULL );
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if ( ppvOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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}
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//
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// Handle known interfaces.
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//
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if ( IsEqualIID( riidIn, IID_IUnknown ) )
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{
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*ppvOut = static_cast< IEnumClusCfgIPAddresses * >( this );
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} // if: IUnknown
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else if ( IsEqualIID( riidIn, IID_IEnumClusCfgIPAddresses ) )
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{
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*ppvOut = TraceInterface( __THISCLASS__, IEnumClusCfgIPAddresses, this, 0 );
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} // else if: IEnumClusCfgIPAddresses
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else if ( IsEqualIID( riidIn, IID_IExtendObjectManager ) )
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{
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*ppvOut = TraceInterface( __THISCLASS__, IExtendObjectManager, this, 0 );
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} // else if: IExtendObjectManager
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else
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{
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*ppvOut = NULL;
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hr = E_NOINTERFACE;
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} // else
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//
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// Add a reference to the interface if successful.
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//
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if ( SUCCEEDED( hr ) )
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{
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((IUnknown *) *ppvOut)->AddRef();
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} // if: success
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Cleanup:
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QIRETURN_IGNORESTDMARSHALLING( hr, riidIn );
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} //*** CEnumIPAddresses::QueryInterface
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP_(ULONG)
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// CEnumIPAddresses::AddRef
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_( ULONG )
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CEnumIPAddresses::AddRef( void )
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{
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TraceFunc( "[IUnknown]" );
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InterlockedIncrement( &m_cRef );
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CRETURN( m_cRef );
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} //*** CEnumIPAddresses::AddRef
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP_(ULONG)
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// CEnumIPAddresses::Release
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_( ULONG )
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CEnumIPAddresses::Release( void )
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{
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TraceFunc( "[IUnknown]" );
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LONG cRef;
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cRef = InterlockedDecrement( &m_cRef );
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if ( cRef == 0 )
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{
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TraceDo( delete this );
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}
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CRETURN( cRef );
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} //*** CEnumIPAddresses::Release
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// ************************************************************************
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//
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// IExtendObjectManager
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//
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// ************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::FindObject(
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// OBJECTCOOKIE cookieIn
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// , REFCLSID rclsidTypeIn
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// , LPCWSTR pcszNameIn
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// , LPUNKNOWN * punkOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::FindObject(
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OBJECTCOOKIE cookieIn
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, REFCLSID rclsidTypeIn
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, LPCWSTR pcszNameIn
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, LPUNKNOWN * ppunkOut
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)
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{
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TraceFunc( "[IExtendObjectManager]" );
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OBJECTCOOKIE cookie;
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OBJECTCOOKIE cookieParent;
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IServiceProvider * psp;
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HRESULT hr = S_FALSE;
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IObjectManager * pom = NULL;
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IStandardInfo * psi = NULL;
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IEnumCookies * pec = NULL;
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DWORD cookieCount = 0;
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//
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// Check arguments
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//
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if ( cookieIn == 0 )
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{
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hr = THR( E_INVALIDARG );
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goto Cleanup;
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}
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if ( rclsidTypeIn != CLSID_IPAddressType )
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{
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hr = THR( E_INVALIDARG );
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goto Cleanup;
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}
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if ( ppunkOut == NULL )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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}
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AssertMsg( pcszNameIn == NULL, "Enums shouldn't have names." );
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//
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// Grab the object manager.
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//
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hr = THR( CoCreateInstance( CLSID_ServiceManager,
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NULL,
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CLSCTX_INPROC_SERVER,
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TypeSafeParams( IServiceProvider, &psp )
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) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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hr = THR( psp->TypeSafeQS( CLSID_ObjectManager,
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IObjectManager,
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&pom
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) );
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psp->Release(); // release promptly
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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//
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// Ask the Object Manager for information about our cookie so we can
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// get to the "parent" cookie.
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//
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hr = THR( pom->GetObject( DFGUID_StandardInfo,
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cookieIn,
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reinterpret_cast< IUnknown ** >( &psi )
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) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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hr = STHR( psi->GetParent( &cookieParent ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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//
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// Now ask the Object Manager for a cookie enumerator.
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//
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hr = THR( pom->FindObject( CLSID_IPAddressType,
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cookieParent,
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NULL,
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DFGUID_EnumCookies,
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NULL,
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reinterpret_cast< IUnknown ** >( &pec )
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) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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pec = TraceInterface( L"CEnumIPAddresses!IEnumCookies", IEnumCookies, pec, 1 );
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//
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// Ask the enumerator how many cookies it has.
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//
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hr = THR( pec->Count( &cookieCount ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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m_cAlloced = cookieCount;
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if ( m_cAlloced == 0 )
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{
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// The error text is better than the coding value.
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hr = HRESULT_FROM_WIN32( TW32( ERROR_NOT_FOUND ) );
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goto Cleanup;
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}
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//
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// Allocate a buffer to store the punks.
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//
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m_pList = (IClusCfgIPAddressInfo **) TraceAlloc( HEAP_ZERO_MEMORY, m_cAlloced * sizeof(IClusCfgIPAddressInfo *) );
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if ( m_pList == NULL )
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{
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hr = THR( E_OUTOFMEMORY );
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goto Cleanup;
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}
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//
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// Reset the enumerator.
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//
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hr = THR( pec->Reset() );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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//
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// Now loop thru to collect the interfaces.
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//
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m_cIter = 0;
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while ( hr == S_OK && m_cIter < m_cAlloced )
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{
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hr = STHR( pec->Next( 1, &cookie, NULL ) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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if ( hr == S_FALSE )
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{
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break; // exit condition
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}
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hr = THR( pom->GetObject( DFGUID_IPAddressInfo,
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cookie,
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reinterpret_cast< IUnknown ** >( &m_pList[ m_cIter ] )
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) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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m_cIter++;
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} // while: S_OK
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//
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// Reset the iter.
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//
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m_cIter = 0;
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//
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// Grab the interface.
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//
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hr = THR( QueryInterface( DFGUID_EnumIPAddressInfo,
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reinterpret_cast< void ** >( ppunkOut )
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) );
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if ( FAILED( hr ) )
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{
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goto Cleanup;
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}
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Cleanup:
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if ( pom != NULL )
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{
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pom->Release();
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}
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if ( psi != NULL )
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{
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psi->Release();
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}
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if ( pec != NULL )
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{
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pec->Release();
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}
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HRETURN( hr );
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} //*** CEnumIPAddresses::FindObject
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//****************************************************************************
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//
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// IEnumClusCfgIPAddresses
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//
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//****************************************************************************
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//////////////////////////////////////////////////////////////////////////////
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//
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// STDMETHODIMP
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// CEnumIPAddresses::Next(
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// ULONG celt,
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// IClusCfgNode ** rgOut,
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// ULONG * pceltFetchedOut
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// )
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//
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//////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP
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CEnumIPAddresses::Next(
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ULONG celt,
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IClusCfgIPAddressInfo * rgOut[],
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ULONG * pceltFetchedOut
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)
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{
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TraceFunc( "[IEnumClusCfgIPAddresses]" );
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ULONG celtFetched;
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HRESULT hr = S_FALSE;
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//
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// Check parameters
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//
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if ( rgOut == NULL || celt == 0 )
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{
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hr = THR( E_POINTER );
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goto Cleanup;
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}
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|
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//
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// Zero the return count.
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//
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if ( pceltFetchedOut != NULL )
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{
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*pceltFetchedOut = 0;
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}
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//
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// Clear the buffer
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//
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ZeroMemory( rgOut, celt * sizeof(rgOut[0]) );
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//
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// Loop thru copying the interfaces.
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//
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for( celtFetched = 0
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; celtFetched + m_cIter < m_cAlloced && celtFetched < celt
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; celtFetched ++
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)
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{
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hr = THR( m_pList[ m_cIter + celtFetched ]->TypeSafeQI( IClusCfgIPAddressInfo, &rgOut[ celtFetched ] ) );
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if ( FAILED( hr ) )
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{
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goto CleanupList;
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}
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rgOut[ celtFetched ] = TraceInterface( L"EnumIPAddresses!IClusCfgIPAddressInfo", IClusCfgIPAddressInfo, rgOut[ celtFetched ], 1 );
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} // for: celtFetched
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if ( pceltFetchedOut != NULL )
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{
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*pceltFetchedOut = celtFetched;
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}
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m_cIter += celtFetched;
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|
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if ( celtFetched != celt )
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{
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hr = S_FALSE;
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}
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else
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{
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hr = S_OK;
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}
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Cleanup:
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HRETURN( hr );
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CleanupList:
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for ( ; celtFetched != 0 ; )
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{
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celtFetched --;
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rgOut[ celtFetched ]->Release();
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rgOut[ celtFetched ] = NULL;
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}
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goto Cleanup;
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} //*** CEnumIPAddresses::Next
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|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
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// STDMETHODIMP
|
|
// CEnumIPAddresses::Skip(
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// ULONG celt
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// )
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//
|
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//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CEnumIPAddresses::Skip(
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ULONG celt
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)
|
|
{
|
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TraceFunc( "[IEnumClusCfgIPAddresses]" );
|
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|
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HRESULT hr = S_OK;
|
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|
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m_cIter += celt;
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|
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if ( m_cIter > m_cAlloced )
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{
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m_cIter = m_cAlloced;
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hr = S_FALSE;
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}
|
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HRETURN( hr );
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} //*** CEnumIPAddresses::Skip
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|
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//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// STDMETHODIMP
|
|
// CEnumIPAddresses::Reset( void )
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CEnumIPAddresses::Reset( void )
|
|
{
|
|
TraceFunc( "[IEnumClusCfgIPAddresses]" );
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
m_cIter = 0;
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEnumIPAddresses::Reset
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// STDMETHODIMP
|
|
// CEnumIPAddresses::Clone(
|
|
// IEnumClusCfgIPAddresses ** ppenumOut
|
|
// )
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CEnumIPAddresses::Clone(
|
|
IEnumClusCfgIPAddresses ** ppenumOut
|
|
)
|
|
{
|
|
TraceFunc( "[IEnumClusCfgIPAddresses]" );
|
|
|
|
//
|
|
// KB: not going to implement this method.
|
|
//
|
|
HRESULT hr = THR( E_NOTIMPL );
|
|
|
|
HRETURN( hr );
|
|
|
|
} //*** CEnumIPAddresses::Clone
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// STDMETHODIMP
|
|
// CEnumIPAddresses::Count(
|
|
// DWORD * pnCountOut
|
|
// )
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
STDMETHODIMP
|
|
CEnumIPAddresses::Count(
|
|
DWORD * pnCountOut
|
|
)
|
|
{
|
|
TraceFunc( "[IEnumClusCfgIPAddresses]" );
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
if ( pnCountOut == NULL )
|
|
{
|
|
hr = THR( E_POINTER );
|
|
goto Cleanup;
|
|
}
|
|
|
|
*pnCountOut = m_cAlloced;
|
|
|
|
Cleanup:
|
|
HRETURN( hr );
|
|
|
|
} //*** CEnumIPAddresses::Count
|