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windows-server-2003/multimedia/dshow/vidctl/atl/statreg.h

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// This is a part of the Active Template Library.
// Copyright (C) 1996-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Active Template Library Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Active Template Library product.
#ifndef __STATREG_H
#define __STATREG_H
#define E_ATL_REGISTRAR_DESC 0x0201
#define E_ATL_NOT_IN_MAP 0x0202
#define E_ATL_UNEXPECTED_EOS 0x0203
#define E_ATL_VALUE_SET_FAILED 0x0204
#define E_ATL_RECURSE_DELETE_FAILED 0x0205
#define E_ATL_EXPECTING_EQUAL 0x0206
#define E_ATL_CREATE_KEY_FAILED 0x0207
#define E_ATL_DELETE_KEY_FAILED 0x0208
#define E_ATL_OPEN_KEY_FAILED 0x0209
#define E_ATL_CLOSE_KEY_FAILED 0x020A
#define E_ATL_UNABLE_TO_COERCE 0x020B
#define E_ATL_BAD_HKEY 0x020C
#define E_ATL_MISSING_OPENKEY_TOKEN 0x020D
#define E_ATL_CONVERT_FAILED 0x020E
#define E_ATL_TYPE_NOT_SUPPORTED 0x020F
#define E_ATL_COULD_NOT_CONCAT 0x0210
#define E_ATL_COMPOUND_KEY 0x0211
#define E_ATL_INVALID_MAPKEY 0x0212
#define E_ATL_UNSUPPORTED_VT 0x0213
#define E_ATL_VALUE_GET_FAILED 0x0214
#define E_ATL_VALUE_TOO_LARGE 0x0215
#define E_ATL_MISSING_VALUE_DELIMETER 0x0216
#define E_ATL_DATA_NOT_BYTE_ALIGNED 0x0217
namespace ATL
{
const TCHAR chDirSep = _T('\\');
const TCHAR chRightBracket = _T('}');
const TCHAR chLeftBracket = _T('{');
const TCHAR chQuote = _T('\'');
const TCHAR chEquals = _T('=');
const LPCTSTR szStringVal = _T("S");
const LPCTSTR szDwordVal = _T("D");
const LPCTSTR szBinaryVal = _T("B");
const LPCTSTR szValToken = _T("Val");
const LPCTSTR szForceRemove = _T("ForceRemove");
const LPCTSTR szNoRemove = _T("NoRemove");
const LPCTSTR szDelete = _T("Delete");
class CExpansionVector
{
public:
//Declare EXPANDER struct. Only used locally.
struct EXPANDER
{
LPOLESTR szKey;
LPOLESTR szValue;
};
CExpansionVector()
{
m_cEls = 0;
m_nSize=10;
m_p = (EXPANDER**)malloc(m_nSize*sizeof(EXPANDER*));
}
~CExpansionVector()
{
free(m_p);
}
HRESULT Add(LPCOLESTR lpszKey, LPCOLESTR lpszValue)
{
USES_CONVERSION;
HRESULT hr = S_OK;
EXPANDER* pExpand = NULL;
ATLTRY(pExpand = new EXPANDER);
if (pExpand == NULL)
return E_OUTOFMEMORY;
DWORD cbKey = (ocslen(lpszKey)+1)*sizeof(OLECHAR);
DWORD cbValue = (ocslen(lpszValue)+1)*sizeof(OLECHAR);
pExpand->szKey = (LPOLESTR)CoTaskMemAlloc(cbKey);
pExpand->szValue = (LPOLESTR)CoTaskMemAlloc(cbValue);
if (pExpand->szKey == NULL || pExpand->szValue == NULL)
{
CoTaskMemFree(pExpand->szKey);
CoTaskMemFree(pExpand->szValue);
delete pExpand;
return E_OUTOFMEMORY;
}
memcpy(pExpand->szKey, lpszKey, cbKey);
memcpy(pExpand->szValue, lpszValue, cbValue);
EXPANDER** p;
if (m_cEls == m_nSize)
{
m_nSize*=2;
p = (EXPANDER**)realloc(m_p, m_nSize*sizeof(EXPANDER*));
if (p == NULL)
{
CoTaskMemFree(pExpand->szKey);
CoTaskMemFree(pExpand->szValue);
hr = E_OUTOFMEMORY;
}
else
m_p = p;
}
if (SUCCEEDED(hr))
{
ATLASSERT(m_p != NULL);
m_p[m_cEls] = pExpand;
m_cEls++;
}
return hr;
}
LPCOLESTR Find(LPTSTR lpszKey)
{
USES_CONVERSION;
for (int iExpand = 0; iExpand < m_cEls; iExpand++)
{
if (!lstrcmpi(OLE2T(m_p[iExpand]->szKey), lpszKey)) //are equal
return m_p[iExpand]->szValue;
}
return NULL;
}
HRESULT ClearReplacements()
{
for (int iExpand = 0; iExpand < m_cEls; iExpand++)
{
EXPANDER* pExp = m_p[iExpand];
CoTaskMemFree(pExp->szValue);
CoTaskMemFree(pExp->szKey);
delete pExp;
}
m_cEls = 0;
return S_OK;
}
private:
EXPANDER** m_p;
int m_cEls;
int m_nSize;
};
class CRegObject;
class CRegParser
{
public:
CRegParser(CRegObject* pRegObj);
HRESULT PreProcessBuffer(LPCTSTR lpszReg, LPTSTR* ppszReg);
HRESULT RegisterBuffer(LPTSTR szReg, BOOL bRegister);
protected:
void SkipWhiteSpace();
HRESULT NextToken(LPTSTR szToken);
HRESULT AddValue(CRegKey& rkParent,LPCTSTR szValueName, LPTSTR szToken);
BOOL CanForceRemoveKey(LPCTSTR szKey);
BOOL HasSubKeys(HKEY hkey);
BOOL HasValues(HKEY hkey);
HRESULT RegisterSubkeys(LPTSTR szToken, HKEY hkParent, BOOL bRegister, BOOL bInRecovery = FALSE);
BOOL IsSpace(TCHAR ch);
LPTSTR m_pchCur;
CRegObject* m_pRegObj;
HRESULT GenerateError(UINT) {return DISP_E_EXCEPTION;}
HRESULT HandleReplacements(LPTSTR& szToken);
HRESULT SkipAssignment(LPTSTR szToken);
BOOL EndOfVar() { return chQuote == *m_pchCur && chQuote != *CharNext(m_pchCur); }
static LPCTSTR StrChr(LPCTSTR lpsz, TCHAR ch);
static HKEY HKeyFromString(LPTSTR szToken);
static BYTE ChToByte(const TCHAR ch);
static BOOL VTFromRegType(LPCTSTR szValueType, VARTYPE& vt);
static LPCTSTR rgszNeverDelete[];
static const int cbNeverDelete;
static const int MAX_VALUE;
static const int MAX_TYPE;
class CParseBuffer
{
public:
int nPos;
int nSize;
LPTSTR p;
CParseBuffer(int nInitial)
{
nPos = 0;
nSize = nInitial;
p = (LPTSTR) CoTaskMemAlloc(nSize*sizeof(TCHAR));
}
~CParseBuffer()
{
CoTaskMemFree(p);
}
BOOL AddChar(const TCHAR* pch)
{
if (nPos == nSize) // realloc
{
LPTSTR pNew;
nSize *= 2;
pNew = (LPTSTR) CoTaskMemRealloc(p, nSize*sizeof(TCHAR));
if (pNew == NULL)
return FALSE;
p = pNew;
}
p[nPos++] = *pch;
#ifndef _UNICODE
if (IsDBCSLeadByte(*pch))
p[nPos++] = *(pch + 1);
#endif
return TRUE;
}
BOOL AddString(LPCOLESTR lpsz)
{
USES_CONVERSION;
LPCTSTR lpszT = OLE2CT(lpsz);
while (*lpszT)
{
AddChar(lpszT);
lpszT++;
}
return TRUE;
}
LPTSTR Detach()
{
LPTSTR lp = p;
p = NULL;
return lp;
}
};
};
#if defined(_ATL_DLL) | defined(_ATL_DLL_IMPL)
class ATL_NO_VTABLE CRegObject
: public IRegistrar
#else
class CRegObject
#endif
{
public:
~CRegObject(){ClearReplacements();}
HRESULT FinalConstruct() {return S_OK;}
void FinalRelease() {}
// Map based methods
HRESULT STDMETHODCALLTYPE AddReplacement(LPCOLESTR lpszKey, LPCOLESTR lpszItem);
HRESULT STDMETHODCALLTYPE ClearReplacements();
LPCOLESTR StrFromMap(LPTSTR lpszKey);
// Register via a given mechanism
HRESULT STDMETHODCALLTYPE ResourceRegister(LPCOLESTR pszFileName, UINT nID, LPCOLESTR pszType);
HRESULT STDMETHODCALLTYPE ResourceRegisterSz(LPCOLESTR pszFileName, LPCOLESTR pszID, LPCOLESTR pszType);
HRESULT STDMETHODCALLTYPE ResourceUnregister(LPCOLESTR pszFileName, UINT nID, LPCOLESTR pszType);
HRESULT STDMETHODCALLTYPE ResourceUnregisterSz(LPCOLESTR pszFileName, LPCOLESTR pszID, LPCOLESTR pszType);
HRESULT STDMETHODCALLTYPE FileRegister(LPCOLESTR bstrFileName)
{
return CommonFileRegister(bstrFileName, TRUE);
}
HRESULT STDMETHODCALLTYPE FileUnregister(LPCOLESTR bstrFileName)
{
return CommonFileRegister(bstrFileName, FALSE);
}
HRESULT STDMETHODCALLTYPE StringRegister(LPCOLESTR bstrData)
{
return RegisterWithString(bstrData, TRUE);
}
HRESULT STDMETHODCALLTYPE StringUnregister(LPCOLESTR bstrData)
{
return RegisterWithString(bstrData, FALSE);
}
protected:
HRESULT CommonFileRegister(LPCOLESTR pszFileName, BOOL bRegister);
HRESULT RegisterFromResource(LPCOLESTR pszFileName, LPCTSTR pszID, LPCTSTR pszType, BOOL bRegister);
HRESULT RegisterWithString(LPCOLESTR pszData, BOOL bRegister);
static HRESULT GenerateError(UINT) {return DISP_E_EXCEPTION;}
CExpansionVector m_RepMap;
// NOTE: the original atl source code used CComObjectThreadModel, but if you're linking together
// multiple objects with different threading models then this breaks because the different models see different
// initialization sizes for the ctor. since registration doesn't happen that often, we're just going to take
// the microscopic perf hit of always assuming multithread and really grabbing a real critsec. the alternative
// would be to templatize all the CRegXXX classes with a threading model parameter. but, its not worth doing that much work
// for such a low use frequency component.
CComMultiThreadModel::AutoCriticalSection m_csMap;
};
inline HRESULT STDMETHODCALLTYPE CRegObject::AddReplacement(LPCOLESTR lpszKey, LPCOLESTR lpszItem)
{
m_csMap.Lock();
HRESULT hr = m_RepMap.Add(lpszKey, lpszItem);
m_csMap.Unlock();
return hr;
}
inline HRESULT CRegObject::RegisterFromResource(LPCOLESTR bstrFileName, LPCTSTR szID,
LPCTSTR szType, BOOL bRegister)
{
USES_CONVERSION;
HRESULT hr;
CRegParser parser(this);
HINSTANCE hInstResDll;
HRSRC hrscReg;
HGLOBAL hReg;
DWORD dwSize;
LPSTR szRegA;
LPTSTR szReg;
hInstResDll = LoadLibraryEx(OLE2CT(bstrFileName), NULL, LOAD_LIBRARY_AS_DATAFILE);
if (NULL == hInstResDll)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Failed to LoadLibrary on %s\n"), OLE2CT(bstrFileName));
hr = HRESULT_FROM_WIN32(GetLastError());
goto ReturnHR;
}
hrscReg = FindResource((HMODULE)hInstResDll, szID, szType);
if (NULL == hrscReg)
{
if (DWORD_PTR(szID) <= 0xffff)
ATLTRACE2(atlTraceRegistrar, 0, _T("Failed to FindResource on ID:%d TYPE:%s\n"),
(DWORD)(DWORD_PTR)szID, szType);
else
ATLTRACE2(atlTraceRegistrar, 0, _T("Failed to FindResource on ID:%s TYPE:%s\n"),
szID, szType);
hr = HRESULT_FROM_WIN32(GetLastError());
goto ReturnHR;
}
hReg = LoadResource((HMODULE)hInstResDll, hrscReg);
if (NULL == hReg)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Failed to LoadResource \n"));
hr = HRESULT_FROM_WIN32(GetLastError());
goto ReturnHR;
}
dwSize = SizeofResource((HMODULE)hInstResDll, hrscReg);
szRegA = (LPSTR)hReg;
if (szRegA[dwSize] != NULL)
{
szRegA = (LPSTR)_alloca(dwSize+1);
memcpy(szRegA, (void*)hReg, dwSize+1);
szRegA[dwSize] = NULL;
}
szReg = A2T(szRegA);
hr = parser.RegisterBuffer(szReg, bRegister);
ReturnHR:
if (NULL != hInstResDll)
FreeLibrary((HMODULE)hInstResDll);
return hr;
}
inline HRESULT STDMETHODCALLTYPE CRegObject::ResourceRegister(LPCOLESTR szFileName, UINT nID, LPCOLESTR szType)
{
USES_CONVERSION;
return RegisterFromResource(szFileName, MAKEINTRESOURCE(nID), OLE2CT(szType), TRUE);
}
inline HRESULT STDMETHODCALLTYPE CRegObject::ResourceRegisterSz(LPCOLESTR szFileName, LPCOLESTR szID, LPCOLESTR szType)
{
USES_CONVERSION;
if (szID == NULL || szType == NULL)
return E_INVALIDARG;
return RegisterFromResource(szFileName, OLE2CT(szID), OLE2CT(szType), TRUE);
}
inline HRESULT STDMETHODCALLTYPE CRegObject::ResourceUnregister(LPCOLESTR szFileName, UINT nID, LPCOLESTR szType)
{
USES_CONVERSION;
return RegisterFromResource(szFileName, MAKEINTRESOURCE(nID), OLE2CT(szType), FALSE);
}
inline HRESULT STDMETHODCALLTYPE CRegObject::ResourceUnregisterSz(LPCOLESTR szFileName, LPCOLESTR szID, LPCOLESTR szType)
{
USES_CONVERSION;
if (szID == NULL || szType == NULL)
return E_INVALIDARG;
return RegisterFromResource(szFileName, OLE2CT(szID), OLE2CT(szType), FALSE);
}
inline HRESULT CRegObject::RegisterWithString(LPCOLESTR bstrData, BOOL bRegister)
{
USES_CONVERSION;
CRegParser parser(this);
LPCTSTR szReg = OLE2CT(bstrData);
HRESULT hr = parser.RegisterBuffer((LPTSTR)szReg, bRegister);
return hr;
}
inline HRESULT CRegObject::ClearReplacements()
{
m_csMap.Lock();
HRESULT hr = m_RepMap.ClearReplacements();
m_csMap.Unlock();
return hr;
}
inline LPCOLESTR CRegObject::StrFromMap(LPTSTR lpszKey)
{
m_csMap.Lock();
LPCOLESTR lpsz = m_RepMap.Find(lpszKey);
if (lpsz == NULL) // not found!!
ATLTRACE2(atlTraceRegistrar, 0, _T("Map Entry not found\n"));
m_csMap.Unlock();
return lpsz;
}
inline HRESULT CRegObject::CommonFileRegister(LPCOLESTR bstrFileName, BOOL bRegister)
{
USES_CONVERSION;
CRegParser parser(this);
HANDLE hFile = CreateFile(OLE2CT(bstrFileName), GENERIC_READ, 0, NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_READONLY,
NULL);
if (INVALID_HANDLE_VALUE == hFile)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Failed to CreateFile on %s\n"), OLE2CT(bstrFileName));
return HRESULT_FROM_WIN32(GetLastError());
}
HRESULT hRes = S_OK;
DWORD cbRead;
DWORD cbFile = GetFileSize(hFile, NULL); // No HiOrder DWORD required
char* szReg = (char*)_alloca(cbFile + 1);
if (ReadFile(hFile, szReg, cbFile, &cbRead, NULL) == 0)
{
ATLTRACE2(atlTraceRegistrar, 0, "Read Failed on file%s\n", OLE2CT(bstrFileName));
hRes = HRESULT_FROM_WIN32(GetLastError());
}
if (SUCCEEDED(hRes))
{
szReg[cbRead] = NULL;
LPTSTR szConverted = A2T(szReg);
hRes = parser.RegisterBuffer(szConverted, bRegister);
}
CloseHandle(hFile);
return hRes;
}
__declspec(selectany) LPCTSTR CRegParser::rgszNeverDelete[] = //Component Catagories
{
_T("CLSID"), _T("TYPELIB")
};
__declspec(selectany) const int CRegParser::cbNeverDelete = sizeof(rgszNeverDelete) / sizeof(LPCTSTR*);
__declspec(selectany) const int CRegParser::MAX_VALUE=4096;
__declspec(selectany) const int CRegParser::MAX_TYPE=MAX_VALUE;
inline BOOL CRegParser::VTFromRegType(LPCTSTR szValueType, VARTYPE& vt)
{
struct typemap
{
LPCTSTR lpsz;
VARTYPE vt;
};
static const typemap map[] = {
{szStringVal, VT_BSTR},
{szDwordVal, VT_UI4},
{szBinaryVal, VT_UI1}
};
for (int i=0;i<sizeof(map)/sizeof(typemap);i++)
{
if (!lstrcmpi(szValueType, map[i].lpsz))
{
vt = map[i].vt;
return TRUE;
}
}
return FALSE;
}
inline BYTE CRegParser::ChToByte(const TCHAR ch)
{
switch (ch)
{
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return (BYTE) (ch - '0');
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
return (BYTE) (10 + (ch - 'A'));
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
return (BYTE) (10 + (ch - 'a'));
default:
ATLASSERT(FALSE);
ATLTRACE2(atlTraceRegistrar, 0, _T("Bogus value %c passed as binary Hex value\n"), ch);
return 0;
}
}
inline HKEY CRegParser::HKeyFromString(LPTSTR szToken)
{
struct keymap
{
LPCTSTR lpsz;
HKEY hkey;
};
static const keymap map[] = {
{_T("HKCR"), HKEY_CLASSES_ROOT},
{_T("HKCU"), HKEY_CURRENT_USER},
{_T("HKLM"), HKEY_LOCAL_MACHINE},
{_T("HKU"), HKEY_USERS},
{_T("HKPD"), HKEY_PERFORMANCE_DATA},
{_T("HKDD"), HKEY_DYN_DATA},
{_T("HKCC"), HKEY_CURRENT_CONFIG},
{_T("HKEY_CLASSES_ROOT"), HKEY_CLASSES_ROOT},
{_T("HKEY_CURRENT_USER"), HKEY_CURRENT_USER},
{_T("HKEY_LOCAL_MACHINE"), HKEY_LOCAL_MACHINE},
{_T("HKEY_USERS"), HKEY_USERS},
{_T("HKEY_PERFORMANCE_DATA"), HKEY_PERFORMANCE_DATA},
{_T("HKEY_DYN_DATA"), HKEY_DYN_DATA},
{_T("HKEY_CURRENT_CONFIG"), HKEY_CURRENT_CONFIG}
};
for (int i=0;i<sizeof(map)/sizeof(keymap);i++)
{
if (!lstrcmpi(szToken, map[i].lpsz))
return map[i].hkey;
}
return NULL;
}
inline LPCTSTR CRegParser::StrChr(LPCTSTR lpsz, TCHAR ch)
{
LPCTSTR p = NULL;
while (*lpsz)
{
if (*lpsz == ch)
{
p = lpsz;
break;
}
lpsz = CharNext(lpsz);
}
return p;
}
inline CRegParser::CRegParser(CRegObject* pRegObj)
{
m_pRegObj = pRegObj;
m_pchCur = NULL;
}
inline BOOL CRegParser::IsSpace(TCHAR ch)
{
switch (ch)
{
case _T(' '):
case _T('\t'):
case _T('\r'):
case _T('\n'):
return TRUE;
}
return FALSE;
}
inline void CRegParser::SkipWhiteSpace()
{
while(IsSpace(*m_pchCur))
m_pchCur = CharNext(m_pchCur);
}
inline HRESULT CRegParser::NextToken(LPTSTR szToken)
{
USES_CONVERSION;
SkipWhiteSpace();
// NextToken cannot be called at EOS
if (NULL == *m_pchCur)
return GenerateError(E_ATL_UNEXPECTED_EOS);
// handle quoted value / key
if (chQuote == *m_pchCur)
{
LPCTSTR szOrig = szToken;
m_pchCur = CharNext(m_pchCur);
while (NULL != *m_pchCur && !EndOfVar())
{
if (chQuote == *m_pchCur) // If it is a quote that means we must skip it
m_pchCur = CharNext(m_pchCur);
LPTSTR pchPrev = m_pchCur;
m_pchCur = CharNext(m_pchCur);
if (szToken + sizeof(WORD) >= MAX_VALUE + szOrig)
return GenerateError(E_ATL_VALUE_TOO_LARGE);
for (int i = 0; pchPrev+i < m_pchCur; i++, szToken++)
*szToken = *(pchPrev+i);
}
if (NULL == *m_pchCur)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("NextToken : Unexpected End of File\n"));
return GenerateError(E_ATL_UNEXPECTED_EOS);
}
*szToken = NULL;
m_pchCur = CharNext(m_pchCur);
}
else
{ // Handle non-quoted ie parse up till first "White Space"
while (NULL != *m_pchCur && !IsSpace(*m_pchCur))
{
LPTSTR pchPrev = m_pchCur;
m_pchCur = CharNext(m_pchCur);
for (int i = 0; pchPrev+i < m_pchCur; i++, szToken++)
*szToken = *(pchPrev+i);
}
*szToken = NULL;
}
return S_OK;
}
inline HRESULT CRegParser::AddValue(CRegKey& rkParent,LPCTSTR szValueName, LPTSTR szToken)
{
USES_CONVERSION;
HRESULT hr;
TCHAR szTypeToken[MAX_TYPE];
VARTYPE vt;
LONG lRes = ERROR_SUCCESS;
UINT nIDRes = 0;
if (FAILED(hr = NextToken(szTypeToken)))
return hr;
if (!VTFromRegType(szTypeToken, vt))
{
ATLTRACE2(atlTraceRegistrar, 0, _T("%s Type not supported\n"), szTypeToken);
return GenerateError(E_ATL_TYPE_NOT_SUPPORTED);
}
TCHAR szValue[MAX_VALUE];
SkipWhiteSpace();
if (FAILED(hr = NextToken(szValue)))
return hr;
ULONG ulVal;
switch (vt)
{
case VT_BSTR:
lRes = rkParent.SetValue(szValue, szValueName);
ATLTRACE2(atlTraceRegistrar, 2, _T("Setting Value %s at %s\n"), szValue, !szValueName ? _T("default") : szValueName);
break;
case VT_UI4:
#ifdef _WIN64
ATLASSERT(FALSE);
ulVal = 0;
#pragma message( "Still need VarUI4FromStr()." )
#else
VarUI4FromStr(T2OLE(szValue), 0, 0, &ulVal);
#endif
lRes = rkParent.SetValue(ulVal, szValueName);
ATLTRACE2(atlTraceRegistrar, 2, _T("Setting Value %d at %s\n"), ulVal, !szValueName ? _T("default") : szValueName);
break;
case VT_UI1:
{
int cbValue = lstrlen(szValue);
if (cbValue & 0x00000001)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Binary Data does not fall on BYTE boundries\n"));
return E_FAIL;
}
int cbValDiv2 = cbValue/2;
BYTE* rgBinary = (BYTE*)_alloca(cbValDiv2*sizeof(BYTE));
memset(rgBinary, 0, cbValDiv2);
if (rgBinary == NULL)
return E_FAIL;
for (int irg = 0; irg < cbValue; irg++)
rgBinary[(irg/2)] |= (ChToByte(szValue[irg])) << (4*(1 - (irg & 0x00000001)));
lRes = RegSetValueEx(rkParent, szValueName, 0, REG_BINARY, rgBinary, cbValDiv2);
break;
}
}
if (ERROR_SUCCESS != lRes)
{
nIDRes = E_ATL_VALUE_SET_FAILED;
hr = HRESULT_FROM_WIN32(lRes);
}
if (FAILED(hr = NextToken(szToken)))
return hr;
return S_OK;
}
inline BOOL CRegParser::CanForceRemoveKey(LPCTSTR szKey)
{
for (int iNoDel = 0; iNoDel < cbNeverDelete; iNoDel++)
if (!lstrcmpi(szKey, rgszNeverDelete[iNoDel]))
return FALSE; // We cannot delete it
return TRUE;
}
inline BOOL CRegParser::HasSubKeys(HKEY hkey)
{
DWORD cbSubKeys = 0;
if (FAILED(RegQueryInfoKey(hkey, NULL, NULL, NULL,
&cbSubKeys, NULL, NULL,
NULL, NULL, NULL, NULL, NULL)))
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Should not be here!!\n"));
ATLASSERT(FALSE);
return FALSE;
}
return cbSubKeys > 0;
}
inline BOOL CRegParser::HasValues(HKEY hkey)
{
DWORD cbValues = 0;
LONG lResult = RegQueryInfoKey(hkey, NULL, NULL, NULL,
NULL, NULL, NULL,
&cbValues, NULL, NULL, NULL, NULL);
if (ERROR_SUCCESS != lResult)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("RegQueryInfoKey Failed "));
ATLASSERT(FALSE);
return FALSE;
}
if (1 == cbValues)
{
DWORD cbMaxName= MAX_VALUE;
TCHAR szValueName[MAX_VALUE];
// Check to see if the Value is default or named
lResult = RegEnumValue(hkey, 0, szValueName, &cbMaxName, NULL, NULL, NULL, NULL);
if (ERROR_SUCCESS == lResult && (szValueName[0] != NULL))
return TRUE; // Named Value means we have a value
return FALSE;
}
return cbValues > 0; // More than 1 means we have a non-default value
}
inline HRESULT CRegParser::SkipAssignment(LPTSTR szToken)
{
HRESULT hr;
TCHAR szValue[MAX_VALUE];
if (*szToken == chEquals)
{
if (FAILED(hr = NextToken(szToken)))
return hr;
// Skip assignment
SkipWhiteSpace();
if (FAILED(hr = NextToken(szValue)))
return hr;
if (FAILED(hr = NextToken(szToken)))
return hr;
}
return S_OK;
}
inline HRESULT CRegParser::PreProcessBuffer(LPCTSTR lpszReg, LPTSTR* ppszReg)
{
USES_CONVERSION;
ATLASSERT(lpszReg != NULL);
ATLASSERT(ppszReg != NULL);
*ppszReg = NULL;
int nSize = lstrlen(lpszReg)*2;
CParseBuffer pb(nSize);
if (pb.p == NULL)
return E_OUTOFMEMORY;
LPCTSTR pchCur = lpszReg;
HRESULT hr = S_OK;
while (*pchCur != NULL) // look for end
{
if (*pchCur == _T('%'))
{
pchCur = CharNext(pchCur);
if (*pchCur == _T('%'))
pb.AddChar(pchCur);
else
{
LPCTSTR lpszNext = StrChr(pchCur, _T('%'));
if (lpszNext == NULL)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Error no closing % found\n"));
hr = GenerateError(E_ATL_UNEXPECTED_EOS);
break;
}
int nLength = int(lpszNext - pchCur);
if (nLength > 31)
{
hr = E_FAIL;
break;
}
TCHAR buf[32];
lstrcpyn(buf, pchCur, nLength+1);
LPCOLESTR lpszVar = m_pRegObj->StrFromMap(buf);
if (lpszVar == NULL)
{
hr = GenerateError(E_ATL_NOT_IN_MAP);
break;
}
pb.AddString(lpszVar);
while (pchCur != lpszNext)
pchCur = CharNext(pchCur);
}
}
else
pb.AddChar(pchCur);
pchCur = CharNext(pchCur);
}
pb.AddChar(pchCur);
if (SUCCEEDED(hr))
*ppszReg = pb.Detach();
return hr;
}
inline HRESULT CRegParser::RegisterBuffer(LPTSTR szBuffer, BOOL bRegister)
{
TCHAR szToken[MAX_VALUE];
HRESULT hr = S_OK;
LPTSTR szReg;
hr = PreProcessBuffer(szBuffer, &szReg);
if (FAILED(hr))
return hr;
#if defined(_DEBUG) && defined(DEBUG_REGISTRATION)
OutputDebugString(szReg); //would call ATLTRACE but szReg is > 512 bytes
OutputDebugString(_T("\n"));
#endif //_DEBUG
m_pchCur = szReg;
// Preprocess szReg
while (NULL != *m_pchCur)
{
if (FAILED(hr = NextToken(szToken)))
break;
HKEY hkBase;
if ((hkBase = HKeyFromString(szToken)) == NULL)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("HKeyFromString failed on %s\n"), szToken);
hr = GenerateError(E_ATL_BAD_HKEY);
break;
}
if (FAILED(hr = NextToken(szToken)))
break;
if (chLeftBracket != *szToken)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Syntax error, expecting a {, found a %s\n"), szToken);
hr = GenerateError(E_ATL_MISSING_OPENKEY_TOKEN);
break;
}
if (bRegister)
{
LPTSTR szRegAtRegister = m_pchCur;
hr = RegisterSubkeys(szToken, hkBase, bRegister);
if (FAILED(hr))
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Failed to register, cleaning up!\n"));
m_pchCur = szRegAtRegister;
RegisterSubkeys(szToken, hkBase, FALSE);
break;
}
}
else
{
if (FAILED(hr = RegisterSubkeys(szToken, hkBase, bRegister)))
break;
}
SkipWhiteSpace();
}
CoTaskMemFree(szReg);
return hr;
}
inline HRESULT CRegParser::RegisterSubkeys(LPTSTR szToken, HKEY hkParent, BOOL bRegister, BOOL bRecover)
{
CRegKey keyCur;
LONG lRes;
LPTSTR szKey = NULL;
BOOL bDelete = TRUE;
BOOL bInRecovery = bRecover;
HRESULT hr = S_OK;
ATLTRACE2(atlTraceRegistrar, 2, _T("Num Els = %d\n"), cbNeverDelete);
if (FAILED(hr = NextToken(szToken)))
return hr;
while (*szToken != chRightBracket) // Continue till we see a }
{
BOOL bTokenDelete = !lstrcmpi(szToken, szDelete);
if (!lstrcmpi(szToken, szForceRemove) || bTokenDelete)
{
if (FAILED(hr = NextToken(szToken)))
break;
if (bRegister)
{
CRegKey rkForceRemove;
if (StrChr(szToken, chDirSep) != NULL)
return GenerateError(E_ATL_COMPOUND_KEY);
if (CanForceRemoveKey(szToken))
{
rkForceRemove.Attach(hkParent);
rkForceRemove.RecurseDeleteKey(szToken);
rkForceRemove.Detach();
}
if (bTokenDelete)
{
if (FAILED(hr = NextToken(szToken)))
break;
if (FAILED(hr = SkipAssignment(szToken)))
break;
goto EndCheck;
}
}
}
if (!lstrcmpi(szToken, szNoRemove))
{
bDelete = FALSE; // set even for register
if (FAILED(hr = NextToken(szToken)))
break;
}
if (!lstrcmpi(szToken, szValToken)) // need to add a value to hkParent
{
TCHAR szValueName[_MAX_PATH];
if (FAILED(hr = NextToken(szValueName)))
break;
if (FAILED(hr = NextToken(szToken)))
break;
if (*szToken != chEquals)
return GenerateError(E_ATL_EXPECTING_EQUAL);
if (bRegister)
{
CRegKey rk;
rk.Attach(hkParent);
hr = AddValue(rk, szValueName, szToken);
rk.Detach();
if (FAILED(hr))
return hr;
goto EndCheck;
}
else
{
if (!bRecover)
{
ATLTRACE2(atlTraceRegistrar, 1, _T("Deleting %s\n"), szValueName);
CRegKey rkParent;
rkParent.Attach(hkParent);
rkParent.DeleteValue(szValueName);
rkParent.Detach();
}
if (FAILED(hr = SkipAssignment(szToken)))
break;
continue; // can never have a subkey
}
}
if (StrChr(szToken, chDirSep) != NULL)
return GenerateError(E_ATL_COMPOUND_KEY);
if (bRegister)
{
lRes = keyCur.Open(hkParent, szToken, KEY_ALL_ACCESS);
if (ERROR_SUCCESS != lRes)
{
// Failed all access try read only
lRes = keyCur.Open(hkParent, szToken, KEY_READ);
if (ERROR_SUCCESS != lRes)
{
// Finally try creating it
ATLTRACE2(atlTraceRegistrar, 2, _T("Creating key %s\n"), szToken);
lRes = keyCur.Create(hkParent, szToken);
if (ERROR_SUCCESS != lRes)
return GenerateError(E_ATL_CREATE_KEY_FAILED);
}
}
if (FAILED(hr = NextToken(szToken)))
break;
if (*szToken == chEquals)
{
if (FAILED(hr = AddValue(keyCur, NULL, szToken))) // NULL == default
break;
}
}
else
{
if (!bRecover && keyCur.Open(hkParent, szToken, KEY_READ) != ERROR_SUCCESS)
bRecover = TRUE;
// TRACE out Key open status and if in recovery mode
#ifdef _DEBUG
if (!bRecover)
ATLTRACE2(atlTraceRegistrar, 1, _T("Opened Key %s\n"), szToken);
else
ATLTRACE2(atlTraceRegistrar, 0, _T("Ignoring Open key on %s : In Recovery mode\n"), szToken);
#endif //_DEBUG
// Remember Subkey
if (szKey == NULL)
szKey = (LPTSTR)_alloca(sizeof(TCHAR)*_MAX_PATH);
lstrcpyn(szKey, szToken, _MAX_PATH);
// If in recovery mode
if (bRecover || HasSubKeys(keyCur) || HasValues(keyCur))
{
if (FAILED(hr = NextToken(szToken)))
break;
if (FAILED(hr = SkipAssignment(szToken)))
break;
if (*szToken == chLeftBracket)
{
if (FAILED(hr = RegisterSubkeys(szToken, keyCur.m_hKey, bRegister, bRecover)))
break;
if (bRecover) // Turn off recovery if we are done
{
bRecover = bInRecovery;
ATLTRACE2(atlTraceRegistrar, 0, _T("Ending Recovery Mode\n"));
if (FAILED(hr = NextToken(szToken)))
break;
if (FAILED(hr = SkipAssignment(szToken)))
break;
continue;
}
}
if (!bRecover && HasSubKeys(keyCur))
{
// See if the KEY is in the NeverDelete list and if so, don't
if (CanForceRemoveKey(szKey))
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Deleting non-empty subkey %s by force\n"), szKey);
keyCur.RecurseDeleteKey(szKey);
}
if (FAILED(hr = NextToken(szToken)))
break;
continue;
}
if (bRecover)
continue;
}
if (!bRecover && keyCur.Close() != ERROR_SUCCESS)
return GenerateError(E_ATL_CLOSE_KEY_FAILED);
if (!bRecover && bDelete)
{
ATLTRACE2(atlTraceRegistrar, 0, _T("Deleting Key %s\n"), szKey);
CRegKey rkParent;
rkParent.Attach(hkParent);
rkParent.DeleteSubKey(szKey);
rkParent.Detach();
}
if (FAILED(hr = NextToken(szToken)))
break;
if (FAILED(hr = SkipAssignment(szToken)))
break;
}
EndCheck:
if (bRegister)
{
if (*szToken == chLeftBracket && lstrlen(szToken) == 1)
{
if (FAILED(hr = RegisterSubkeys(szToken, keyCur.m_hKey, bRegister, FALSE)))
break;
if (FAILED(hr = NextToken(szToken)))
break;
}
}
}
return hr;
}
}; //namespace ATL
#endif //__STATREG_H