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Don't try to set the label in the superblock of FAT filesystems, that

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doesn't do the right thing anyway.
This commit is contained in:
Alexandre Julliard 2005-11-22 15:03:27 +00:00
parent 30ad95b6cd
commit 99d8083a80
1 changed files with 9 additions and 48 deletions
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57
dlls/kernel/volume.c
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@ -381,36 +381,6 @@ static void VOLUME_GetSuperblockLabel( enum fs_type type, const BYTE *superblock
}
/**************************************************************************
* VOLUME_SetSuperblockLabel
*/
static BOOL VOLUME_SetSuperblockLabel( enum fs_type type, HANDLE handle, const WCHAR *label )
{
CHAR label_data[11];
DWORD offset, len;
switch(type)
{
case FS_FAT1216:
offset = 0x2b;
break;
case FS_FAT32:
offset = 0x47;
break;
default:
SetLastError( ERROR_ACCESS_DENIED );
return FALSE;
}
RtlUnicodeToMultiByteN( label_data, sizeof(label_data), &len,
label, strlenW(label) * sizeof(WCHAR) );
if (len < sizeof(label_data))
memset( label_data + len, ' ', sizeof(label_data) - len );
return (SetFilePointer( handle, offset, NULL, FILE_BEGIN ) == offset &&
WriteFile( handle, label_data, sizeof(label_data), &len, NULL ));
}
/**************************************************************************
* VOLUME_GetSuperblockSerial
*/
@ -699,31 +669,22 @@ BOOL WINAPI SetVolumeLabelW( LPCWSTR root, LPCWSTR label )
/* try to open the device */
handle = CreateFileW( device, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE,
handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
{
/* try read-only */
handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle != INVALID_HANDLE_VALUE)
{
/* device can be read but not written, return error */
CloseHandle( handle );
SetLastError( ERROR_ACCESS_DENIED );
return FALSE;
}
}
if (handle != INVALID_HANDLE_VALUE)
{
BYTE superblock[SUPERBLOCK_SIZE];
BOOL ret;
type = VOLUME_ReadFATSuperblock( handle, superblock );
ret = VOLUME_SetSuperblockLabel( type, handle, label );
if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
CloseHandle( handle );
return ret;
if (type != FS_UNKNOWN)
{
/* we can't set the label on FAT or CDROM file systems */
TRACE( "cannot set label on device %s type %d\n", debugstr_w(device), type );
SetLastError( ERROR_ACCESS_DENIED );
return FALSE;
}
}
else
{