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154 lines
2.9 KiB
154 lines
2.9 KiB
//---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1995
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//
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// File: cprovcf.cxx
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//
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// Contents: Windows NT 3.5 Provider Object Class Factory Code
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//
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// CWinNTProviderCF::CreateInstance
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//
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// History: 01-30-95 krishnag Created.
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//
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//----------------------------------------------------------------------------
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#include "winnt.hxx"
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#pragma hdrstop
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// Class CWinNTProvider
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CWinNTProvider::CWinNTProvider()
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{
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}
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HRESULT
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CWinNTProvider::Create(
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CWinNTProvider FAR * FAR * ppProvider
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)
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{
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CWinNTProvider FAR * pProvider = NULL;
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HRESULT hr = S_OK;
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//Create the Provider Object
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pProvider = new CWinNTProvider();
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if (pProvider == NULL) {
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RRETURN(ResultFromScode(E_OUTOFMEMORY));
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}
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if (FAILED(hr)) {
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delete pProvider;
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RRETURN(hr);
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}
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*ppProvider = pProvider;
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RRETURN_EXP_IF_ERR(hr);
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}
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CWinNTProvider::~CWinNTProvider( )
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{
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ENLIST_TRACKING(CWinNTProvider);
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}
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STDMETHODIMP
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CWinNTProvider::QueryInterface(
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REFIID iid,
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LPVOID FAR* ppv
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)
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{
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if (ppv == NULL) {
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RRETURN(E_POINTER);
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}
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if (IsEqualIID(iid, IID_IUnknown))
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{
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*ppv = this;
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}
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else if (IsEqualIID(iid, IID_IParseDisplayName))
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{
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*ppv = (IADs FAR *) this;
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}
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else
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{
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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AddRef();
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return NOERROR;
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}
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STDMETHODIMP
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CWinNTProvider::ParseDisplayName(
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IBindCtx* pbc,
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WCHAR* szDisplayName,
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ULONG* pchEaten,
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IMoniker** ppmk
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)
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{
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HRESULT hr;
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*ppmk = NULL;
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if (pchEaten != NULL){
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*pchEaten = 0;
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}
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hr = ResolvePathName(
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pbc,
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szDisplayName,
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pchEaten,
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ppmk
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);
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RRETURN_EXP_IF_ERR(hr);
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}
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HRESULT
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CWinNTProvider::ResolvePathName(
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IBindCtx* pbc,
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WCHAR* szDisplayName,
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ULONG* pchEaten,
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IMoniker** ppmk
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)
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{
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HRESULT hr;
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LPUNKNOWN pUnknown = NULL;
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//
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// In try block because the Credentials do an InitCritSect
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// down the line on a static variable. This call can fail
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// so we need to catch it.
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//
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if (!pchEaten) {
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BAIL_ON_FAILURE(hr = E_INVALIDARG);
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}
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__try {
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CWinNTCredentials Credentials;
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*pchEaten = 0;
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hr = GetObject(szDisplayName, (LPVOID *)&pUnknown, Credentials);
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BAIL_ON_FAILURE(hr)
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hr = CreatePointerMoniker(pUnknown, ppmk);
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BAIL_ON_FAILURE(hr);
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*pchEaten += wcslen(szDisplayName);
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}
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__except (EXCEPTION_EXECUTE_HANDLER) {
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RRETURN(E_FAIL);
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}
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error :
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if (pUnknown) {
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pUnknown->Release();
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}
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RRETURN(hr);
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}
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