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Sweden-Number/memory/registry.c

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/*
* Registry management
*
* Copyright (C) 1999 Alexandre Julliard
*
* Based on misc/registry.c code
* Copyright (C) 1996 Marcus Meissner
* Copyright (C) 1998 Matthew Becker
* Copyright (C) 1999 Sylvain St-Germain
*
* This file is concerned about handle management and interaction with the Wine server.
* Registry file I/O is in misc/registry.c.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "winbase.h"
#include "winreg.h"
#include "winerror.h"
#include "wine/winbase16.h"
#include "wine/unicode.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(reg);
/* check if value type needs string conversion (Ansi<->Unicode) */
inline static int is_string( DWORD type )
{
return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ);
}
/* check if current version is NT or Win95 */
inline static int is_version_nt(void)
{
return !(GetVersion() & 0x80000000);
}
/******************************************************************************
* RegCreateKeyExA [ADVAPI32.@]
*/
DWORD WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPSTR class,
DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
LPHKEY retkey, LPDWORD dispos )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW, classW;
ANSI_STRING nameA, classA;
NTSTATUS status;
if (reserved) return ERROR_INVALID_PARAMETER;
if (!(access & KEY_ALL_ACCESS) || (access & ~KEY_ALL_ACCESS)) return ERROR_ACCESS_DENIED;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitAnsiString( &nameA, name );
RtlInitAnsiString( &classA, class );
/* FIXME: should use Unicode buffer in TEB */
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
if (!(status = RtlAnsiStringToUnicodeString( &classW, &classA, TRUE )))
{
status = NtCreateKey( retkey, access, &attr, 0, &classW, options, dispos );
RtlFreeUnicodeString( &classW );
}
RtlFreeUnicodeString( &nameW );
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegOpenKeyW [ADVAPI32.@]
*
* PARAMS
* hkey [I] Handle of open key
* name [I] Address of name of subkey to open
* retkey [O] Handle to open key
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*
* NOTES
* in case of failing is retkey = 0
*/
DWORD WINAPI RegOpenKeyW( HKEY hkey, LPCWSTR name, LPHKEY retkey )
{
return RegOpenKeyExW( hkey, name, 0, KEY_ALL_ACCESS, retkey );
}
/******************************************************************************
* RegCreateKeyA [ADVAPI32.@]
*/
DWORD WINAPI RegCreateKeyA( HKEY hkey, LPCSTR name, LPHKEY retkey )
{
return RegCreateKeyExA( hkey, name, 0, NULL, REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS, NULL, retkey, NULL );
}
/******************************************************************************
* RegOpenKeyExW [ADVAPI32.@]
*
* Opens the specified key
*
* Unlike RegCreateKeyEx, this does not create the key if it does not exist.
*
* PARAMS
* hkey [I] Handle of open key
* name [I] Name of subkey to open
* reserved [I] Reserved - must be zero
* access [I] Security access mask
* retkey [O] Handle to open key
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*
* NOTES
* in case of failing is retkey = 0
*/
DWORD WINAPI RegOpenKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, REGSAM access, LPHKEY retkey )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, name );
return RtlNtStatusToDosError( NtOpenKey( retkey, access, &attr ) );
}
/******************************************************************************
* RegOpenKeyExA [ADVAPI32.@]
*/
DWORD WINAPI RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, REGSAM access, LPHKEY retkey )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
STRING nameA;
NTSTATUS status;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitAnsiString( &nameA, name );
/* FIXME: should use Unicode buffer in TEB */
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
status = NtOpenKey( retkey, access, &attr );
RtlFreeUnicodeString( &nameW );
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegOpenKeyA [ADVAPI32.@]
*/
DWORD WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, LPHKEY retkey )
{
return RegOpenKeyExA( hkey, name, 0, KEY_ALL_ACCESS, retkey );
}
/******************************************************************************
* RegEnumKeyExA [ADVAPI32.@]
*/
DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
{
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
DWORD total_size;
TRACE( "(0x%x,%ld,%p,%p(%ld),%p,%p,%p,%p)\n", hkey, index, name, name_len,
name_len ? *name_len : -1, reserved, class, class_len, ft );
if (reserved) return ERROR_INVALID_PARAMETER;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buffer, sizeof(buffer), &total_size );
while (status == STATUS_BUFFER_OVERFLOW)
{
/* retry with a dynamically allocated buffer */
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_NODE_INFORMATION *)buf_ptr;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
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)))
status = STATUS_BUFFER_OVERFLOW;
else
{
*name_len = len;
RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
name[len] = 0;
if (class_len)
{
*class_len = cls_len;
if (class)
{
RtlUnicodeToMultiByteN( class, cls_len, NULL,
(WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[cls_len] = 0;
}
}
}
}
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegEnumKeyA [ADVAPI32.@]
*/
DWORD WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
{
return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
}
/******************************************************************************
* RegQueryInfoKeyA [ADVAPI32.@]
*/
DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
LPDWORD values, LPDWORD max_value, LPDWORD max_data,
LPDWORD security, FILETIME *modif )
{
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer;
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 );
if (class && !class_len && is_version_nt()) 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)
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_FULL_INFORMATION *)buf_ptr;
status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size );
}
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;
*class_len = len;
}
if (class && !status)
{
RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset),
info->ClassLength );
class[len] = 0;
}
}
else status = STATUS_SUCCESS;
if (subkeys) *subkeys = info->SubKeys;
if (max_subkey) *max_subkey = info->MaxNameLen;
if (max_class) *max_class = info->MaxClassLen;
if (values) *values = info->Values;
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 );
}
/******************************************************************************
* RegCloseKey [ADVAPI32.@]
*
* Releases the handle of the specified key
*
* PARAMS
* hkey [I] Handle of key to close
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*/
DWORD WINAPI RegCloseKey( HKEY hkey )
{
if (!hkey || hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
return RtlNtStatusToDosError( NtClose( hkey ) );
}
/******************************************************************************
* RegDeleteKeyA [ADVAPI32.@]
*/
DWORD WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
{
DWORD ret;
HKEY tmp;
if (!name || !*name) return NtDeleteKey( hkey );
if (!(ret = RegOpenKeyExA( hkey, name, 0, 0, &tmp )))
{
ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
RegCloseKey( tmp );
}
return ret;
}
/******************************************************************************
* RegSetValueExW [ADVAPI32.@]
*
* Sets the data and type of a value under a register key
*
* PARAMS
* hkey [I] Handle of key to set value for
* name [I] Name of value to set
* reserved [I] Reserved - must be zero
* type [I] Flag for value type
* data [I] Address of value data
* count [I] Size of value data
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*
* NOTES
* win95 does not care about count for REG_SZ and finds out the len by itself (js)
* NT does definitely care (aj)
*/
DWORD WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
DWORD type, CONST BYTE *data, DWORD count )
{
UNICODE_STRING nameW;
if (!is_version_nt()) /* win95 */
{
if (type == REG_SZ) count = (strlenW( (WCHAR *)data ) + 1) * sizeof(WCHAR);
}
else if (count && is_string(type))
{
LPCWSTR str = (LPCWSTR)data;
/* if user forgot to count terminating null, add it (yes NT does this) */
if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
count += sizeof(WCHAR);
}
RtlInitUnicodeString( &nameW, name );
return RtlNtStatusToDosError( NtSetValueKey( hkey, &nameW, 0, type, data, count ) );
}
/******************************************************************************
* RegSetValueExA [ADVAPI32.@]
*/
DWORD WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
CONST BYTE *data, DWORD count )
{
UNICODE_STRING nameW;
ANSI_STRING nameA;
WCHAR *dataW = NULL;
NTSTATUS status;
if (count && is_string(type))
{
/* if user forgot to count terminating null, add it (yes NT does this) */
if (data[count-1] && !data[count]) count++;
}
if (is_string( type )) /* need to convert to Unicode */
{
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;
}
RtlInitAnsiString( &nameA, name );
/* FIXME: should use Unicode buffer in TEB */
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
status = NtSetValueKey( hkey, &nameW, 0, type, data, count );
RtlFreeUnicodeString( &nameW );
}
if (dataW) HeapFree( GetProcessHeap(), 0, dataW );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegSetValueA [ADVAPI32.@]
*/
DWORD WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
{
HKEY subkey = hkey;
DWORD ret;
TRACE("(0x%x,%s,%ld,%s,%ld)\n", hkey, debugstr_a(name), type, debugstr_a(data), count );
if (type != REG_SZ) return ERROR_INVALID_PARAMETER;
if (name && name[0]) /* need to create the subkey */
{
if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
}
ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (LPBYTE)data, strlen(data)+1 );
if (subkey != hkey) RegCloseKey( subkey );
return ret;
}
/******************************************************************************
* RegQueryValueExW [ADVAPI32.@]
*
* Retrieves type and data for a specified name associated with an open key
*
* PARAMS
* hkey [I] Handle of key to query
* name [I] Name of value to query
* reserved [I] Reserved - must be NULL
* type [O] Address of buffer for value type. If NULL, the type
* is not required.
* data [O] Address of data buffer. If NULL, the actual data is
* not required.
* count [I/O] Address of data buffer size
*
* RETURNS
* ERROR_SUCCESS: Success
* ERROR_MORE_DATA: !!! if the specified buffer is not big enough to hold the data
* buffer is left untouched. The MS-documentation is wrong (js) !!!
*/
DWORD WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
LPBYTE data, LPDWORD count )
{
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 = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data);
TRACE("(0x%x,%s,%p,%p,%p,%p=%ld)\n",
hkey, debugstr_w(name), reserved, type, data, count, count ? *count : 0 );
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
RtlInitUnicodeString( &name_str, name );
if (data) total_size = min( sizeof(buffer), *count + info_size );
else total_size = info_size;
status = NtQueryValueKey( hkey, &name_str, KeyValuePartialInformation,
buffer, total_size, &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
if (data)
{
/* 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;
if (type) *type = info->Type;
if (count) *count = total_size - info_size;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* RegQueryValueExA [ADVAPI32.@]
*
* NOTES:
* the documentation is wrong: if the buffer is too small it remains untouched
*/
DWORD WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
LPBYTE data, LPDWORD count )
{
NTSTATUS status;
ANSI_STRING nameA;
UNICODE_STRING nameW;
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("(0x%x,%s,%p,%p,%p,%p=%ld)\n",
hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
RtlInitAnsiString( &nameA, name );
/* FIXME: should use Unicode buffer in TEB */
if ((status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
return RtlNtStatusToDosError(status);
status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
buffer, sizeof(buffer), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
/* we need to fetch the contents for a string type even if not requested,
* because we need to compute the length of the ASCII string. */
if (data || is_string(info->Type))
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
{
status = STATUS_NO_MEMORY;
goto done;
}
info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
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 );
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 );
/* 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;
}
}
total_size = len + info_size;
}
else if (data)
{
if (total_size - info_size > *count) status = STATUS_BUFFER_OVERFLOW;
else memcpy( data, buf_ptr + info_size, total_size - info_size );
}
}
else if (status != STATUS_BUFFER_OVERFLOW) goto done;
}
if (type) *type = info->Type;
if (count) *count = total_size - info_size;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
RtlFreeUnicodeString( &nameW );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* RegQueryValueA [ADVAPI32.@]
*/
DWORD WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
{
DWORD ret;
HKEY subkey = hkey;
TRACE("(%x,%s,%p,%ld)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
if (name && name[0])
{
if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
}
ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, count );
if (subkey != hkey) RegCloseKey( subkey );
if (ret == ERROR_FILE_NOT_FOUND)
{
/* return empty string if default value not found */
if (data) *data = 0;
if (count) *count = 1;
ret = ERROR_SUCCESS;
}
return ret;
}
/******************************************************************************
* RegEnumValueA [ADVAPI32.@]
*/
DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
{
NTSTATUS status;
DWORD total_size;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
TRACE("(%x,%ld,%p,%p,%p,%p,%p,%p)\n",
hkey, index, value, val_count, reserved, type, data, count );
/* NT only checks count, not val_count */
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
if (data) total_size += *count;
total_size = min( sizeof(buffer), total_size );
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buffer, total_size, &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
/* we need to fetch the contents for a string type even if not requested,
* because we need to compute the length of the ASCII string. */
if (value || data || is_string(info->Type))
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
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_FULL_INFORMATION *)buf_ptr;
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buf_ptr, total_size, &total_size );
}
if (status) goto done;
if (is_string(info->Type))
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
if (data && len)
{
if (len > *count) status = STATUS_BUFFER_OVERFLOW;
else
{
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;
}
}
info->DataLength = len;
}
else if (data)
{
if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
}
if (value && !status)
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
if (len >= *val_count)
{
status = STATUS_BUFFER_OVERFLOW;
if (*val_count)
{
len = *val_count - 1;
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
}
}
else
{
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
*val_count = len;
}
}
}
else status = STATUS_SUCCESS;
if (type) *type = info->Type;
if (count) *count = info->DataLength;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* RegDeleteValueA [ADVAPI32.@]
*/
DWORD WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
{
UNICODE_STRING nameW;
STRING nameA;
NTSTATUS status;
RtlInitAnsiString( &nameA, name );
/* FIXME: should use Unicode buffer in TEB */
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
status = NtDeleteValueKey( hkey, &nameW );
RtlFreeUnicodeString( &nameW );
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* RegLoadKeyA [ADVAPI32.@]
*/
LONG WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
{
HANDLE file;
WCHAR buffer[MAX_PATH];
DWORD ret, len, err = GetLastError();
TRACE( "(%x,%s,%s)\n", hkey, debugstr_a(subkey), debugstr_a(filename) );
if (!filename || !*filename) return ERROR_INVALID_PARAMETER;
if (!subkey || !*subkey) return ERROR_INVALID_PARAMETER;
if (!(len = MultiByteToWideChar( CP_ACP, 0, subkey, strlen(subkey), buffer, MAX_PATH )))
return ERROR_INVALID_PARAMETER;
if ((file = CreateFileA( filename, GENERIC_READ, 0, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, 0 )) == INVALID_HANDLE_VALUE)
{
ret = GetLastError();
goto done;
}
SERVER_START_REQ( load_registry )
{
req->hkey = hkey;
req->file = file;
wine_server_add_data( req, buffer, len * sizeof(WCHAR) );
ret = RtlNtStatusToDosError( wine_server_call(req) );
}
SERVER_END_REQ;
CloseHandle( file );
done:
SetLastError( err ); /* restore the last error code */
return ret;
}
/******************************************************************************
* RegSaveKeyA [ADVAPI32.@]
*
* PARAMS
* hkey [I] Handle of key where save begins
* lpFile [I] Address of filename to save to
* sa [I] Address of security structure
*/
LONG WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
{
char buffer[1024];
int count = 0;
LPSTR name;
DWORD ret, err;
HANDLE handle;
TRACE( "(%x,%s,%p)\n", hkey, debugstr_a(file), sa );
if (!file || !*file) return ERROR_INVALID_PARAMETER;
err = GetLastError();
GetFullPathNameA( file, sizeof(buffer), buffer, &name );
for (;;)
{
sprintf( name, "reg%04x.tmp", count++ );
handle = CreateFileA( buffer, GENERIC_WRITE, 0, NULL,
CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
if (handle != INVALID_HANDLE_VALUE) break;
if ((ret = GetLastError()) != ERROR_ALREADY_EXISTS) goto done;
/* Something gone haywire ? Please report if this happens abnormally */
if (count >= 100)
MESSAGE("Wow, we are already fiddling with a temp file %s with an ordinal as high as %d !\nYou might want to delete all corresponding temp files in that directory.\n", buffer, count);
}
SERVER_START_REQ( save_registry )
{
req->hkey = hkey;
req->file = handle;
ret = RtlNtStatusToDosError( wine_server_call( req ) );
}
SERVER_END_REQ;
CloseHandle( handle );
if (!ret)
{
if (!MoveFileExA( buffer, file, MOVEFILE_REPLACE_EXISTING ))
{
ERR( "Failed to move %s to %s\n", buffer, file );
ret = GetLastError();
}
}
if (ret) DeleteFileA( buffer );
done:
SetLastError( err ); /* restore last error code */
return ret;
}
/******************************************************************************
* RegUnLoadKeyA [ADVAPI32.@]
*
* PARAMS
* hkey [I] Handle of open key
* lpSubKey [I] Address of name of subkey to unload
*/
LONG WINAPI RegUnLoadKeyA( HKEY hkey, LPCSTR lpSubKey )
{
FIXME("(%x,%s): stub\n",hkey, debugstr_a(lpSubKey));
return ERROR_SUCCESS;
}
/******************************************************************************
* RegReplaceKeyA [ADVAPI32.@]
*
* PARAMS
* hkey [I] Handle of open key
* lpSubKey [I] Address of name of subkey
* lpNewFile [I] Address of filename for file with new data
* lpOldFile [I] Address of filename for backup file
*/
LONG WINAPI RegReplaceKeyA( HKEY hkey, LPCSTR lpSubKey, LPCSTR lpNewFile,
LPCSTR lpOldFile )
{
FIXME("(%x,%s,%s,%s): stub\n", hkey, debugstr_a(lpSubKey),
debugstr_a(lpNewFile),debugstr_a(lpOldFile));
return ERROR_SUCCESS;
}
/******************************************************************************
* RegFlushKey [ADVAPI32.@]
* Immediately writes key to registry.
* Only returns after data has been written to disk.
*
* FIXME: does it really wait until data is written ?
*
* PARAMS
* hkey [I] Handle of key to write
*
* RETURNS
* Success: ERROR_SUCCESS
* Failure: Error code
*/
DWORD WINAPI RegFlushKey( HKEY hkey )
{
FIXME( "(%x): stub\n", hkey );
return ERROR_SUCCESS;
}
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