Leaked source code of windows server 2003
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276 lines
8.1 KiB

//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1997 - 2002.
//
// File: regprop.hxx
//
// Contents: Class for parsing cached properties as listed in the registry.
//
// Classes: CParseRegistryProperty
//
// History: 11-Nov-97 KyleP Created.
//
//----------------------------------------------------------------------------
#pragma once
#include <ciguid.hxx>
#include <ctype.h>
//+---------------------------------------------------------------------------
//
// Class: CParseRegistryProperty
//
// Purpose: Parses a registry property entry
//
// History: 11-Nov-97 KyleP Created.
//
//----------------------------------------------------------------------------
class CParseRegistryProperty
{
public:
inline CParseRegistryProperty( WCHAR *pValueName, ULONG uValueType,
VOID *pValueData, ULONG uValueLength );
BOOL IsOk() { return _fOk; }
CFullPropSpec & GetFPS() { return _fps; }
ULONG Type() { return _vt; }
ULONG Size() { return _cb; }
BOOL IsModifiable() { return _fModifiable; }
DWORD StorageLevel() { return _dwStoreLevel; }
private:
BOOL _fOk; // TRUE if parse succeeded
CFullPropSpec _fps; // Property stored here
ULONG _vt; // Datatype
ULONG _cb; // Size
BOOL _fModifiable; // Is this modifiable once entered into metabase?
DWORD _dwStoreLevel;// Storage level
};
//+---------------------------------------------------------------------------
//
// Class: CBuildRegistryProperty
//
// Purpose: Builds a registry property entry
//
// History: 11-Nov-97 KyleP Created.
//
//----------------------------------------------------------------------------
class CBuildRegistryProperty
{
public:
inline CBuildRegistryProperty( CFullPropSpec const & fps, ULONG vt,
ULONG cb, DWORD dwStoreLevel = SECONDARY_STORE,
BOOL fModifiable = TRUE);
WCHAR const * GetValue() { return _xwcsValue.Get(); }
WCHAR const * GetData() { return _xwcsData.Get(); }
private:
XGrowable<WCHAR> _xwcsValue;
XGrowable<WCHAR> _xwcsData;
};
//+---------------------------------------------------------------------------
//
// Member: CParseRegistryProperty::CParseRegistryProperty, public
//
// Synopsis: Parses a registry entry for a property value
//
// Arguments: [pValueName] -- Name of value (should be FULLPROPSPEC)
// [pValueType] -- Value type. Should be REG_SZ
// [pValueData] -- Data (should be "<type>,<size>"
// [uValueLength] -- Size of [pValueData]
//
// History: 10-Nov-97 KyleP Created
//
//----------------------------------------------------------------------------
inline CParseRegistryProperty::CParseRegistryProperty( WCHAR *pValueName,
ULONG uValueType,
VOID *pValueData,
ULONG uValueLength )
: _fOk( FALSE ),
_dwStoreLevel( SECONDARY_STORE ),
_fModifiable( TRUE )
{
//
// Format is GUID [PROPID | "PropName"] = datatype,length[,storagelevel[,fModifiable]]
// storagelevel, if absent, defaults to Secondary Store.
// fModifiable, if absent, defaults to TRUE.
do
{
//
// Has to be at least 38 characters long (36 for guid plus space + name/number)
//
unsigned cc = wcslen(pValueName);
if ( cc < 38 || pValueName[36] != L' ' )
break;
if ( REG_SZ != uValueType )
break;
//
// Parse GUID
//
GUID guid;
pValueName[36] = 0;
if ( !ParseGuid( pValueName, guid ) )
break;
_fps.SetPropSet( guid );
pValueName[36] = L' ';
//
// Parse number/name
//
PROPID pid = 0;
for ( WCHAR * p = pValueName + 37; *p; p++ )
{
if ( !isdigit(*p) )
{
pid = 0;
break;
}
pid = pid * 10 + *p - L'0';
}
if ( 0 == pid )
{
if ( !_fps.SetProperty( pValueName + 37 ) )
THROW( CException( E_OUTOFMEMORY ) );
}
else
_fps.SetProperty( pid );
//
// Parse data type
//
_vt = 0;
for ( p = (WCHAR *)pValueData; *p && isdigit(*p); p++ )
_vt = _vt * 10 + *p - L'0';
if ( L',' != *p )
break;
_cb = 0;
for ( p++; *p && isdigit(*p); p++ )
_cb = _cb * 10 + *p - L'0';
//
// Parse storage level
//
if ( L',' == *p )
{
_dwStoreLevel = 0;
for ( p++; *p && isdigit(*p); p++ )
_dwStoreLevel = _dwStoreLevel * 10 + *p - L'0';
// if we don't see a primary or a secondary store signature,
// consider the registry string corrupt.
if (PRIMARY_STORE != _dwStoreLevel &&
SECONDARY_STORE != _dwStoreLevel)
break;
}
//
// Parse modifiability
//
if ( L',' == *p )
{
int iVal = 0;
for ( p++; *p && isdigit(*p); p++ )
iVal = iVal * 10 + *p - L'0';
// if we don't see a TRUE (1) or FALSE (0) signature,
// consider the registry string corrupt.
if (0 != iVal && 1 != iVal)
break;
_fModifiable = BOOL(iVal);
}
_fOk = TRUE;
} while(FALSE);
}
//+---------------------------------------------------------------------------
//
// Member: CBuildRegistryProperty::CBuildRegistryProperty, public
//
// Synopsis: Builds property registry entry from components
//
// Arguments: [fps] -- Property
// [vt] -- Data type
// [cb] -- Size of data in cache
// [dwStoreLevel] -- Property storage level
// [fModifiable] -- Can property metadata be modified once set?
//
// History: 10-Nov-97 KyleP Created
//
//----------------------------------------------------------------------------
inline CBuildRegistryProperty::CBuildRegistryProperty( CFullPropSpec const & fps, ULONG vt,
ULONG cb, DWORD dwStoreLevel,
BOOL fModifiable )
{
GUID const & guid = fps.GetPropSet();
unsigned cc = 36 + 10 + 2; // GUID + space + MAX_INT + null
if ( fps.IsPropertyName() )
cc += wcslen( fps.GetPropertyName() );
_xwcsValue.SetSize( cc );
swprintf( _xwcsValue.Get(),
L"%08lX-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X ",
guid.Data1,
guid.Data2,
guid.Data3,
guid.Data4[0], guid.Data4[1],
guid.Data4[2], guid.Data4[3],
guid.Data4[4], guid.Data4[5],
guid.Data4[6], guid.Data4[7] );
if ( fps.IsPropertyName() )
swprintf( _xwcsValue.Get() + 37, L"%ws", fps.GetPropertyName() );
else
swprintf( _xwcsValue.Get() + 37, L"%u", fps.GetPropertyPropid() );
_xwcsData.SetSize( 35 ); // 3*MAX_INT + 3*comma + fModifiable + NULL =
// 3*10 + 3 + 1 + 1
swprintf( _xwcsData.Get(), L"%u,%u,%u,%u", vt, cb, dwStoreLevel, fModifiable?1:0 );
}