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