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Use ntdll functions instead of MultiByteToWideChar/WideCharToMultiByte 

to avoid corrupting the last error code.
This commit is contained in:
Alexandre Julliard 2001-12-05 22:18:48 +00:00
parent 996c0bff59
commit 60fd03d248
2 changed files with 77 additions and 93 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
dlls/advapi32/registry.c
View File

@ -345,12 +345,11 @@ DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len
if (!status)
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD cls_len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength / sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD len, cls_len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
if (len >= *name_len || (class_len && (cls_len >= *class_len)))
@ -358,17 +357,16 @@ DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len
else
{
*name_len = len;
WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
name, len, NULL, NULL );
RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
name[len] = 0;
if (class_len)
{
*class_len = cls_len;
if (class)
{
WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength / sizeof(WCHAR),
class, cls_len, NULL, NULL );
RtlUnicodeToMultiByteN( class, cls_len, NULL,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[cls_len] = 0;
}
}
@ -516,10 +514,7 @@ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWOR
if (status) goto done;
len = WideCharToMultiByte( CP_ACP, 0,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength/sizeof(WCHAR),
NULL, 0, NULL, NULL );
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
if (class_len)
{
if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
@ -527,10 +522,8 @@ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWOR
}
if (class && !status)
{
WideCharToMultiByte( CP_ACP, 0,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength/sizeof(WCHAR),
class, len, NULL, NULL );
RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[len] = 0;
}
}
@ -679,11 +672,11 @@ DWORD WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
if (is_string( type )) /* need to convert to Unicode */
{
DWORD lenW = MultiByteToWideChar( CP_ACP, 0, data, count, NULL, 0 );
if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW*sizeof(WCHAR) )))
return ERROR_OUTOFMEMORY;
MultiByteToWideChar( CP_ACP, 0, data, count, dataW, lenW );
count = lenW * sizeof(WCHAR);
DWORD lenW;
RtlMultiByteToUnicodeSize( &lenW, data, count );
if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
RtlMultiByteToUnicodeN( dataW, lenW, NULL, data, count );
count = lenW;
data = (BYTE *)dataW;
}
@ -878,17 +871,17 @@ DWORD WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD
if (is_string(info->Type))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info_size),
(total_size - info_size) /sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD len;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info_size),
total_size - info_size );
if (data && len)
{
if (len > *count) status = STATUS_BUFFER_OVERFLOW;
else
{
WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info_size),
(total_size - info_size) /sizeof(WCHAR),
data, len, NULL, NULL );
RtlUnicodeToMultiByteN( data, len, NULL, (WCHAR *)(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 (len < *count && data[len-1]) data[len] = 0;
@ -1104,24 +1097,24 @@ DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_cou
if (value)
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
if (len >= *val_count)
{
status = STATUS_BUFFER_OVERFLOW;
goto done;
}
WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
value, len, NULL, NULL );
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
*val_count = len;
}
if (is_string(info->Type))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->DataOffset),
(total_size - info->DataOffset) / sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD len;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
if (data && len)
{
if (len > *count)
@ -1129,9 +1122,8 @@ DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_cou
status = STATUS_BUFFER_OVERFLOW;
goto done;
}
WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->DataOffset),
(total_size - info->DataOffset) / sizeof(WCHAR),
data, len, NULL, NULL );
RtlUnicodeToMultiByteN( data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
/* 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 (len < *count && data[len-1]) data[len] = 0;

72
memory/registry.c
View File

@ -152,12 +152,11 @@ DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len
if (!status)
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD cls_len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength / sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD len, cls_len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
if (ft) *ft = *(FILETIME *)&info->LastWriteTime;
if (len >= *name_len || (class_len && (cls_len >= *class_len)))
@ -165,17 +164,16 @@ DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len
else
{
*name_len = len;
WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
name, len, NULL, NULL );
RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
name[len] = 0;
if (class_len)
{
*class_len = cls_len;
if (class)
{
WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength / sizeof(WCHAR),
class, cls_len, NULL, NULL );
RtlUnicodeToMultiByteN( class, cls_len, NULL,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[cls_len] = 0;
}
}
@ -207,7 +205,7 @@ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWOR
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
DWORD total_size;
DWORD total_size, len;
TRACE( "(0x%x,%p,%ld,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
@ -216,6 +214,7 @@ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWOR
return ERROR_INVALID_PARAMETER;
status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
if (class || class_len)
{
@ -229,12 +228,9 @@ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWOR
status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
}
if (!status)
{
DWORD len = WideCharToMultiByte( CP_ACP, 0,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength/sizeof(WCHAR),
NULL, 0, NULL, NULL );
if (status) goto done;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
if (class_len)
{
if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
@ -242,17 +238,13 @@ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWOR
}
if (class && !status)
{
WideCharToMultiByte( CP_ACP, 0,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength/sizeof(WCHAR),
class, len, NULL, NULL );
RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[len] = 0;
}
}
}
else status = STATUS_SUCCESS;
if (!status || status == STATUS_BUFFER_OVERFLOW)
{
if (subkeys) *subkeys = info->SubKeys;
if (max_subkey) *max_subkey = info->MaxNameLen;
if (max_class) *max_class = info->MaxClassLen;
@ -260,8 +252,8 @@ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWOR
if (max_value) *max_value = info->MaxValueNameLen;
if (max_data) *max_data = info->MaxValueDataLen;
if (modif) *modif = *(FILETIME *)&info->LastWriteTime;
}
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError( status );
}
@ -324,11 +316,11 @@ DWORD WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
if (is_string( type )) /* need to convert to Unicode */
{
DWORD lenW = MultiByteToWideChar( CP_ACP, 0, data, count, NULL, 0 );
if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW*sizeof(WCHAR) )))
return ERROR_OUTOFMEMORY;
MultiByteToWideChar( CP_ACP, 0, data, count, dataW, lenW );
count = lenW * sizeof(WCHAR);
DWORD lenW;
RtlMultiByteToUnicodeSize( &lenW, data, count );
if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
RtlMultiByteToUnicodeN( dataW, lenW, NULL, data, count );
count = lenW;
data = (BYTE *)dataW;
}
@ -529,24 +521,24 @@ DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_cou
if (value)
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
if (len >= *val_count)
{
status = STATUS_BUFFER_OVERFLOW;
goto done;
}
WideCharToMultiByte( CP_ACP, 0, info->Name, info->NameLength/sizeof(WCHAR),
value, len, NULL, NULL );
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
*val_count = len;
}
if (is_string(info->Type))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->DataOffset),
(total_size - info->DataOffset) / sizeof(WCHAR),
NULL, 0, NULL, NULL );
DWORD len;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
if (data && len)
{
if (len > *count)
@ -554,9 +546,8 @@ DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_cou
status = STATUS_BUFFER_OVERFLOW;
goto done;
}
WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info->DataOffset),
(total_size - info->DataOffset) / sizeof(WCHAR),
data, len, NULL, NULL );
RtlUnicodeToMultiByteN( data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
/* 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 (len < *count && data[len-1]) data[len] = 0;
@ -569,6 +560,7 @@ DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_cou
else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
}
}
else status = STATUS_SUCCESS;
if (type) *type = info->Type;
if (count) *count = info->DataLength;