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- Sync RegGetValueA/W implementation (no functional changes though, mostly comments).

Browse source 
- Port RegQueryValueExW from Wine (but leaving RegQueryValueExA as a wrapper, with a fix).
- Implement RegSetValueA/W based on Wine's implementation, and removing old, different (A and W) versions of RegSetValue.

svn path=/trunk/; revision=36623
This commit is contained in:
Aleksey Bragin 2008-10-02 11:30:44 +00:00
parent fa71aedefe
commit 629de52bc2
1 changed files with 130 additions and 198 deletions
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328
reactos/dll/win32/advapi32/reg/reg.c
View file

@ -1809,8 +1809,8 @@ RegpApplyRestrictions( DWORD dwFlags, DWORD dwType, DWORD cbData,
/******************************************************************************
* RegGetValueW [ADVAPI32.@]
*
* Retrieves the type and data for a value name associated with a key
* optionally expanding it's content and restricting it's type.
* Retrieves the type and data for a value name associated with a key,
* optionally expanding its content and restricting its type.
*
* PARAMS
* hKey [I] Handle to an open key.
@ -1819,23 +1819,25 @@ RegpApplyRestrictions( DWORD dwFlags, DWORD dwType, DWORD cbData,
* dwFlags [I] Flags restricting the value type to retrieve.
* pdwType [O] Destination for the values type, may be NULL.
* pvData [O] Destination for the values content, may be NULL.
* pcbData [I/O] Size of pvData, updated with the size required to
* retrieve the whole content.
* pcbData [I/O] Size of pvData, updated with the size in bytes required to
* retrieve the whole content, including the trailing '\0'
* for strings.
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: nonzero error code from Winerror.h
*
* NOTES
* - Unless RRF_NOEXPAND is specified REG_EXPAND_SZ is automatically expanded
* and REG_SZ is retrieved instead.
* - Restrictions are applied after expanding, using RRF_RT_REG_EXPAND_SZ
* - Unless RRF_NOEXPAND is specified, REG_EXPAND_SZ values are automatically
* expanded and pdwType is set to REG_SZ instead.
* - Restrictions are applied after expanding, using RRF_RT_REG_EXPAND_SZ
* without RRF_NOEXPAND is thus not allowed.
* An exception is the case where RRF_RT_ANY is specified, because then
* RRF_NOEXPAND is allowed.
*/
LONG WINAPI
RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
LPDWORD pcbData )
LSTATUS WINAPI RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
LPDWORD pcbData )
{
DWORD dwType, cbData = pcbData ? *pcbData : 0;
PVOID pvBuf = NULL;
@ -1847,7 +1849,6 @@ RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
if (pvData && !pcbData)
return ERROR_INVALID_PARAMETER;
if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
return ERROR_INVALID_PARAMETER;
@ -1864,7 +1865,7 @@ RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
* if the passed buffer was too small as the expanded string might be
* smaller than the unexpanded one and could fit into cbData bytes. */
if ((ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA) &&
(dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND)))
dwType == REG_EXPAND_SZ && !(dwFlags & RRF_NOEXPAND))
{
do {
HeapFree(GetProcessHeap(), 0, pvBuf);
@ -1930,10 +1931,9 @@ RegGetValueW( HKEY hKey, LPCWSTR pszSubKey, LPCWSTR pszValue,
*
* See RegGetValueW.
*/
LONG WINAPI
RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
LPDWORD pcbData )
LSTATUS WINAPI RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
DWORD dwFlags, LPDWORD pdwType, PVOID pvData,
LPDWORD pcbData )
{
DWORD dwType, cbData = pcbData ? *pcbData : 0;
PVOID pvBuf = NULL;
@ -1945,7 +1945,6 @@ RegGetValueA( HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue,
if (pvData && !pcbData)
return ERROR_INVALID_PARAMETER;
if ((dwFlags & RRF_RT_REG_EXPAND_SZ) && !(dwFlags & RRF_NOEXPAND) &&
((dwFlags & RRF_RT_ANY) != RRF_RT_ANY))
return ERROR_INVALID_PARAMETER;
@ -3793,120 +3792,84 @@ RegQueryReflectionKey(IN HKEY hBase,
*
* @implemented
*/
LONG STDCALL
RegQueryValueExW (HKEY hKey,
LPCWSTR lpValueName,
LPDWORD lpReserved,
LPDWORD lpType,
LPBYTE lpData,
LPDWORD lpcbData)
LONG
WINAPI
RegQueryValueExW(HKEY hkeyorg,
LPCWSTR name,
LPDWORD reserved,
LPDWORD type,
LPBYTE data,
LPDWORD count)
{
PKEY_VALUE_PARTIAL_INFORMATION ValueInfo;
UNICODE_STRING ValueName;
NTSTATUS Status;
ULONG BufferSize;
ULONG ResultSize;
HANDLE KeyHandle;
LONG ErrorCode = ERROR_SUCCESS;
ULONG MaxCopy = lpcbData != NULL && lpData != NULL ? *lpcbData : 0;
HANDLE hkey;
NTSTATUS status;
UNICODE_STRING name_str;
DWORD total_size;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
TRACE("hKey 0x%X lpValueName %S lpData 0x%X lpcbData %d\n",
hKey, lpValueName, lpData, lpcbData ? *lpcbData : 0);
TRACE("(%p,%s,%p,%p,%p,%p=%d)\n",
hkey, debugstr_w(name), reserved, type, data, count,
(count && data) ? *count : 0 );
Status = MapDefaultKey (&KeyHandle,
hKey);
if (!NT_SUCCESS(Status))
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
//if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
status = MapDefaultKey(&hkey, hkeyorg);
if (!NT_SUCCESS(status))
{
return RtlNtStatusToDosError (Status);
return RtlNtStatusToDosError(status);
}
if (lpData != NULL && lpcbData == NULL)
RtlInitUnicodeString( &name_str, name );
if (data) total_size = min( sizeof(buffer), *count + info_size );
else
{
ErrorCode = ERROR_INVALID_PARAMETER;
goto Cleanup;
total_size = info_size;
if (count) *count = 0;
}
RtlInitUnicodeString (&ValueName,
lpValueName);
BufferSize = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[0]) + MaxCopy;
ValueInfo = RtlAllocateHeap (ProcessHeap,
0,
BufferSize);
if (ValueInfo == NULL)
status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
buffer, total_size, &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
if (data)
{
ErrorCode = ERROR_OUTOFMEMORY;
goto Cleanup;
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW && total_size - info_size <= *count)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
memcpy( data, buf_ptr + info_size, total_size - info_size );
/* if the type is REG_SZ and data is not 0-terminated
* and there is enough space in the buffer NT appends a \0 */
if (total_size - info_size <= *count-sizeof(WCHAR) && is_string(info->Type))
{
WCHAR *ptr = (WCHAR *)(data + total_size - info_size);
if (ptr > (WCHAR *)data && ptr[-1]) *ptr = 0;
}
}
else if (status != STATUS_BUFFER_OVERFLOW) goto done;
}
else status = STATUS_SUCCESS;
Status = NtQueryValueKey (KeyHandle,
&ValueName,
KeyValuePartialInformation,
ValueInfo,
BufferSize,
&ResultSize);
TRACE("Status 0x%X\n", Status);
if (Status == STATUS_BUFFER_OVERFLOW)
{
/* Return ERROR_SUCCESS and the buffer space needed for a successful call */
MaxCopy = 0;
ErrorCode = lpData ? ERROR_MORE_DATA : ERROR_SUCCESS;
}
else if (!NT_SUCCESS(Status))
{
ErrorCode = RtlNtStatusToDosError (Status);
MaxCopy = 0;
if (lpcbData != NULL)
{
ResultSize = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[0]) + *lpcbData;
}
}
if (type) *type = info->Type;
if (count) *count = total_size - info_size;
if ((lpType != NULL) && (NT_SUCCESS(Status) || (Status == STATUS_BUFFER_OVERFLOW)))
{
*lpType = ValueInfo->Type;
}
if (NT_SUCCESS(Status) && lpData != NULL)
{
RtlMoveMemory (lpData,
ValueInfo->Data,
min(ValueInfo->DataLength, MaxCopy));
}
if ((ValueInfo->Type == REG_SZ) ||
(ValueInfo->Type == REG_MULTI_SZ) ||
(ValueInfo->Type == REG_EXPAND_SZ))
{
if (lpData != NULL && MaxCopy > ValueInfo->DataLength)
{
((PWSTR)lpData)[ValueInfo->DataLength / sizeof(WCHAR)] = 0;
}
if (lpcbData != NULL)
{
*lpcbData = (ResultSize - FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[0]));
TRACE("(string) Returning Size: %lu\n", *lpcbData);
}
}
else
{
if (lpcbData != NULL)
{
*lpcbData = ResultSize - FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[0]);
TRACE("(other) Returning Size: %lu\n", *lpcbData);
}
}
TRACE("Type %d Size %d\n", ValueInfo->Type, ValueInfo->DataLength);
RtlFreeHeap (ProcessHeap,
0,
ValueInfo);
Cleanup:
ClosePredefKey(KeyHandle);
return ErrorCode;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
ClosePredefKey(hkey);
return RtlNtStatusToDosError(status);
}
@ -3955,6 +3918,9 @@ RegQueryValueExA (HKEY hKey,
ValueData.Buffer = NULL;
ValueData.Length = 0;
ValueData.MaximumLength = 0;
if (lpcbData)
*lpcbData = 0;
}
RtlCreateUnicodeStringFromAsciiz (&ValueName,
@ -4754,47 +4720,39 @@ RegSetValueExW (HKEY hKey,
* @implemented
*/
LONG STDCALL
RegSetValueA (HKEY hKey,
RegSetValueA (HKEY hKeyOriginal,
LPCSTR lpSubKey,
DWORD dwType,
LPCSTR lpData,
DWORD cbData)
{
LONG ret;
HKEY hSubKey;
HKEY subkey;
HANDLE hKey;
DWORD ret;
NTSTATUS Status;
if (dwType != REG_SZ)
{
return ERROR_INVALID_PARAMETER;
}
TRACE("(%p,%s,%d,%s,%d)\n", hKey, debugstr_a(lpSubKey), dwType, debugstr_a(lpData), cbData );
if (lpSubKey != NULL && lpSubKey[0] != '\0')
{
ret = RegCreateKeyA(hKey,
lpSubKey,
&hSubKey);
if (dwType != REG_SZ || !lpData) return ERROR_INVALID_PARAMETER;
if (ret != ERROR_SUCCESS)
{
return ret;
}
}
else
hSubKey = hKey;
Status = MapDefaultKey(&hKey, hKeyOriginal);
if (!NT_SUCCESS(Status))
{
return RtlNtStatusToDosError (Status);
}
subkey = hKey;
ret = RegSetValueExA(hSubKey,
NULL,
0,
REG_SZ,
(CONST BYTE*)lpData,
strlen(lpData) + 1);
if (lpSubKey && lpSubKey[0]) /* need to create the subkey */
{
if ((ret = RegCreateKeyA( hKey, lpSubKey, &subkey )) != ERROR_SUCCESS) goto Cleanup;
}
ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (const BYTE*)lpData, strlen(lpData)+1 );
if (subkey != hKey) RegCloseKey( subkey );
if (hSubKey != hKey)
{
RegCloseKey(hSubKey);
}
Cleanup:
ClosePredefKey(hKey);
return ret;
return ret;
}
@ -4804,67 +4762,41 @@ RegSetValueA (HKEY hKey,
* @implemented
*/
LONG STDCALL
RegSetValueW (HKEY hKey,
RegSetValueW (HKEY hKeyOriginal,
LPCWSTR lpSubKey,
DWORD dwType,
LPCWSTR lpData,
DWORD cbData)
{
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING SubKeyString;
HANDLE KeyHandle;
HANDLE RealKey;
BOOL CloseRealKey;
NTSTATUS Status;
LONG ErrorCode;
HKEY subkey;
HANDLE hKey;
DWORD ret;
NTSTATUS Status;
Status = MapDefaultKey (&KeyHandle,
hKey);
if (!NT_SUCCESS(Status))
TRACE("(%p,%s,%d,%s,%d)\n", hKeyOriginal, debugstr_w(lpSubKey), dwType, debugstr_w(lpData), cbData );
if (dwType != REG_SZ || !lpData) return ERROR_INVALID_PARAMETER;
Status = MapDefaultKey(&hKey, hKeyOriginal);
if (!NT_SUCCESS(Status))
{
return RtlNtStatusToDosError (Status);
return RtlNtStatusToDosError (Status);
}
subkey = hKey;
if (lpSubKey && lpSubKey[0]) /* need to create the subkey */
{
if ((ret = RegCreateKeyW( hKey, lpSubKey, &subkey )) != ERROR_SUCCESS) goto Cleanup;
}
if ((lpSubKey) && (wcslen(lpSubKey) != 0))
{
RtlInitUnicodeString (&SubKeyString,
(LPWSTR)lpSubKey);
InitializeObjectAttributes (&ObjectAttributes,
&SubKeyString,
OBJ_CASE_INSENSITIVE,
KeyHandle,
NULL);
Status = NtOpenKey (&RealKey,
KEY_SET_VALUE,
&ObjectAttributes);
if (!NT_SUCCESS(Status))
{
ErrorCode = RtlNtStatusToDosError (Status);
goto Cleanup;
}
CloseRealKey = TRUE;
}
else
{
RealKey = hKey;
CloseRealKey = FALSE;
}
ErrorCode = RegSetValueExW (RealKey,
NULL,
0,
dwType,
(LPBYTE)lpData,
cbData);
if (CloseRealKey == TRUE)
{
NtClose (RealKey);
}
ret = RegSetValueExW( subkey, NULL, 0, REG_SZ, (const BYTE*)lpData,
(wcslen( lpData ) + 1) * sizeof(WCHAR) );
if (subkey != hKey) RegCloseKey( subkey );
Cleanup:
ClosePredefKey(KeyHandle);
ClosePredefKey(hKey);
return ErrorCode;
return ret;
}