windows-nt/Source/XPSP1/NT/enduser/windows.com/inc/safereg.h

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2020-09-26 03:20:57 -05:00
//
// SafeReg.h
//
// Functions to ensure strings read from the registry are null-terminated.
//
// History:
//
// 2002-03-20 KenSh Created
//
// Copyright (c) 2002 Microsoft Corporation
//
#pragma once
#define REG_E_MORE_DATA HRESULT_FROM_WIN32(ERROR_MORE_DATA)
// Override these if you need a custom allocator for the safe reg functions
#ifndef SafeRegMalloc
#define SafeRegMalloc malloc
#define SafeRegFree(p) ((p) ? free(p) : NULL)
#endif
HRESULT WINAPI SafeRegQueryStringValueCch
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR pszBuf,
IN int cchBuf,
OUT OPTIONAL int* pcchValueSize, // S_OK: chars written, excluding trailing null
// REG_E_MORE_DATA: required size, including null
OUT OPTIONAL BOOL* pfExpandSz = NULL // TRUE if reg string is actually REG_EXPAND_SZ
);
HRESULT WINAPI SafeRegQueryStringValueCb
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR pszBuf,
IN int cbBuf,
OUT OPTIONAL int* pcbValueSize, // S_OK: bytes written, excluding trailing null
// REG_E_MORE_DATA: required size, including null
OUT OPTIONAL BOOL* pfExpandSz = NULL // TRUE if reg string is actually REG_EXPAND_SZ
);
HRESULT WINAPI SafeRegQueryMultiStringValueCch
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR pszBuf,
IN int cchBuf,
OUT OPTIONAL int* pcchValueSize // S_OK: chars written, excluding final trailing null
// REG_E_MORE_DATA: required size, including nulls
);
HRESULT WINAPI SafeRegQueryMultiStringValueCb
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR pszBuf,
IN int cbBuf,
OUT OPTIONAL int* pcbValueSize // S_OK: bytes written, excluding final trailing null
// REG_E_MORE_DATA: required size, including nulls
);
HRESULT WINAPI SafeRegQueryStringValueCchAlloc
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR* ppszBuf,
OUT OPTIONAL int* pcchValueSize, // chars written, excluding trailing null
OUT OPTIONAL BOOL* pfExpandSz = NULL //TRUE if reg string is actually REG_EXPAND_SZ
);
HRESULT WINAPI SafeRegQueryStringValueCbAlloc
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR* ppszBuf,
OUT OPTIONAL int* pcbValueSize, // bytes written, excluding trailing null
OUT OPTIONAL BOOL* pfExpandSz = NULL // TRUE if reg string is actually REG_EXPAND_SZ
);
HRESULT WINAPI SafeRegQueryMultiStringValueCchAlloc
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR* ppszBuf,
OUT OPTIONAL int* pcchValueSize // chars written, excluding final trailing null
);
HRESULT WINAPI SafeRegQueryMultiStringValueCbAlloc
(
IN HKEY hkey,
IN LPCTSTR pszValueName,
OUT LPTSTR* ppszBuf,
OUT OPTIONAL int* pcchValueSize // chars written, excluding final trailing null
);