627 lines
20 KiB
C
627 lines
20 KiB
C
|
/*
|
||
|
* Volume management functions
|
||
|
*
|
||
|
* Copyright 1993 Erik Bos
|
||
|
* Copyright 1996, 2004 Alexandre Julliard
|
||
|
* Copyright 1999 Petr Tomasek
|
||
|
* Copyright 2000 Andreas Mohr
|
||
|
* Copyright 2003 Eric Pouech
|
||
|
*
|
||
|
* 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 "wine/port.h"
|
||
|
|
||
|
#include <stdarg.h>
|
||
|
#include <stdlib.h>
|
||
|
|
||
|
#include "windef.h"
|
||
|
#include "winbase.h"
|
||
|
#include "winreg.h"
|
||
|
#include "winnls.h"
|
||
|
#include "winternl.h"
|
||
|
#include "ntstatus.h"
|
||
|
#include "winioctl.h"
|
||
|
#include "ntddstor.h"
|
||
|
#include "ntddcdrm.h"
|
||
|
#include "wine/unicode.h"
|
||
|
#include "wine/debug.h"
|
||
|
|
||
|
WINE_DEFAULT_DEBUG_CHANNEL(volume);
|
||
|
|
||
|
#define SUPERBLOCK_SIZE 2048
|
||
|
|
||
|
#define CDFRAMES_PERSEC 75
|
||
|
#define CDFRAMES_PERMIN (CDFRAMES_PERSEC * 60)
|
||
|
#define FRAME_OF_ADDR(a) ((a)[1] * CDFRAMES_PERMIN + (a)[2] * CDFRAMES_PERSEC + (a)[3])
|
||
|
#define FRAME_OF_TOC(toc, idx) FRAME_OF_ADDR((toc)->TrackData[(idx) - (toc)->FirstTrack].Address)
|
||
|
|
||
|
#define GETWORD(buf,off) MAKEWORD(buf[(off)],buf[(off+1)])
|
||
|
#define GETLONG(buf,off) MAKELONG(GETWORD(buf,off),GETWORD(buf,off+2))
|
||
|
|
||
|
enum fs_type
|
||
|
{
|
||
|
FS_ERROR, /* error accessing the device */
|
||
|
FS_UNKNOWN, /* unknown file system */
|
||
|
FS_FAT1216,
|
||
|
FS_FAT32,
|
||
|
FS_ISO9660
|
||
|
};
|
||
|
|
||
|
|
||
|
/******************************************************************
|
||
|
* VOLUME_FindCdRomDataBestVoldesc
|
||
|
*/
|
||
|
static DWORD VOLUME_FindCdRomDataBestVoldesc( HANDLE handle )
|
||
|
{
|
||
|
BYTE cur_vd_type, max_vd_type = 0;
|
||
|
BYTE buffer[16];
|
||
|
DWORD size, offs, best_offs = 0, extra_offs = 0;
|
||
|
|
||
|
for (offs = 0x8000; offs <= 0x9800; offs += 0x800)
|
||
|
{
|
||
|
/* if 'CDROM' occurs at position 8, this is a pre-iso9660 cd, and
|
||
|
* the volume label is displaced forward by 8
|
||
|
*/
|
||
|
if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs) break;
|
||
|
if (!ReadFile( handle, buffer, sizeof(buffer), &size, NULL )) break;
|
||
|
if (size != sizeof(buffer)) break;
|
||
|
/* check for non-ISO9660 signature */
|
||
|
if (!memcmp( buffer + 11, "ROM", 3 )) extra_offs = 8;
|
||
|
cur_vd_type = buffer[extra_offs];
|
||
|
if (cur_vd_type == 0xff) /* voldesc set terminator */
|
||
|
break;
|
||
|
if (cur_vd_type > max_vd_type)
|
||
|
{
|
||
|
max_vd_type = cur_vd_type;
|
||
|
best_offs = offs + extra_offs;
|
||
|
}
|
||
|
}
|
||
|
return best_offs;
|
||
|
}
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
* VOLUME_ReadFATSuperblock
|
||
|
*/
|
||
|
static enum fs_type VOLUME_ReadFATSuperblock( HANDLE handle, BYTE *buff )
|
||
|
{
|
||
|
DWORD size;
|
||
|
|
||
|
/* try a fixed disk, with a FAT partition */
|
||
|
if (SetFilePointer( handle, 0, NULL, FILE_BEGIN ) != 0 ||
|
||
|
!ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
|
||
|
size != SUPERBLOCK_SIZE)
|
||
|
return FS_ERROR;
|
||
|
|
||
|
if (buff[0] == 0xE9 || (buff[0] == 0xEB && buff[2] == 0x90))
|
||
|
{
|
||
|
/* guess which type of FAT we have */
|
||
|
unsigned int sz, nsect, nclust;
|
||
|
sz = GETWORD(buff, 0x16);
|
||
|
if (!sz) sz = GETLONG(buff, 0x24);
|
||
|
nsect = GETWORD(buff, 0x13);
|
||
|
if (!nsect) nsect = GETLONG(buff, 0x20);
|
||
|
nsect -= GETWORD(buff, 0x0e) + buff[0x10] * sz +
|
||
|
(GETWORD(buff, 0x11) * 32 + (GETWORD(buff, 0x0b) - 1)) / GETWORD(buff, 0x0b);
|
||
|
nclust = nsect / buff[0x0d];
|
||
|
|
||
|
if (nclust < 65525)
|
||
|
{
|
||
|
if (buff[0x26] == 0x29 && !memcmp(buff+0x36, "FAT", 3))
|
||
|
{
|
||
|
/* FIXME: do really all FAT have their name beginning with
|
||
|
* "FAT" ? (At least FAT12, FAT16 and FAT32 have :)
|
||
|
*/
|
||
|
return FS_FAT1216;
|
||
|
}
|
||
|
}
|
||
|
else if (!memcmp(buff+0x52, "FAT", 3)) return FS_FAT32;
|
||
|
}
|
||
|
return FS_UNKNOWN;
|
||
|
}
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
* VOLUME_ReadCDSuperblock
|
||
|
*/
|
||
|
static enum fs_type VOLUME_ReadCDSuperblock( HANDLE handle, BYTE *buff )
|
||
|
{
|
||
|
DWORD size, offs = VOLUME_FindCdRomDataBestVoldesc( handle );
|
||
|
|
||
|
if (!offs) return FS_UNKNOWN;
|
||
|
|
||
|
if (SetFilePointer( handle, offs, NULL, FILE_BEGIN ) != offs ||
|
||
|
!ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
|
||
|
size != SUPERBLOCK_SIZE)
|
||
|
return FS_ERROR;
|
||
|
|
||
|
/* check for iso9660 present */
|
||
|
if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660;
|
||
|
return FS_UNKNOWN;
|
||
|
}
|
||
|
|
||
|
|
||
|
/**************************************************************************
|
||
|
* VOLUME_GetSuperblockLabel
|
||
|
*/
|
||
|
static void VOLUME_GetSuperblockLabel( enum fs_type type, const BYTE *superblock,
|
||
|
WCHAR *label, DWORD len )
|
||
|
{
|
||
|
const BYTE *label_ptr = NULL;
|
||
|
DWORD label_len;
|
||
|
|
||
|
switch(type)
|
||
|
{
|
||
|
case FS_ERROR:
|
||
|
case FS_UNKNOWN:
|
||
|
label_len = 0;
|
||
|
break;
|
||
|
case FS_FAT1216:
|
||
|
label_ptr = superblock + 0x2b;
|
||
|
label_len = 11;
|
||
|
break;
|
||
|
case FS_FAT32:
|
||
|
label_ptr = superblock + 0x47;
|
||
|
label_len = 11;
|
||
|
break;
|
||
|
case FS_ISO9660:
|
||
|
{
|
||
|
BYTE ver = superblock[0x5a];
|
||
|
|
||
|
if (superblock[0x58] == 0x25 && superblock[0x59] == 0x2f && /* Unicode ID */
|
||
|
((ver == 0x40) || (ver == 0x43) || (ver == 0x45)))
|
||
|
{ /* yippee, unicode */
|
||
|
int i;
|
||
|
|
||
|
if (len > 17) len = 17;
|
||
|
for (i = 0; i < len-1; i++)
|
||
|
label[i] = (superblock[40+2*i] << 8) | superblock[41+2*i];
|
||
|
label[i] = 0;
|
||
|
while (i && label[i-1] == ' ') label[--i] = 0;
|
||
|
return;
|
||
|
}
|
||
|
label_ptr = superblock + 40;
|
||
|
label_len = 32;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR),
|
||
|
&label_len, label_ptr, label_len );
|
||
|
label_len /= sizeof(WCHAR);
|
||
|
label[label_len] = 0;
|
||
|
while (label_len && label[label_len-1] == ' ') label[--label_len] = 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
/**************************************************************************
|
||
|
* VOLUME_SetSuperblockLabel
|
||
|
*/
|
||
|
static BOOL VOLUME_SetSuperblockLabel( enum fs_type type, HANDLE handle, const WCHAR *label )
|
||
|
{
|
||
|
BYTE 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
|
||
|
*/
|
||
|
static DWORD VOLUME_GetSuperblockSerial( enum fs_type type, const BYTE *superblock )
|
||
|
{
|
||
|
switch(type)
|
||
|
{
|
||
|
case FS_ERROR:
|
||
|
case FS_UNKNOWN:
|
||
|
break;
|
||
|
case FS_FAT1216:
|
||
|
return GETLONG( superblock, 0x27 );
|
||
|
case FS_FAT32:
|
||
|
return GETLONG( superblock, 0x33 );
|
||
|
case FS_ISO9660:
|
||
|
{
|
||
|
BYTE sum[4];
|
||
|
int i;
|
||
|
|
||
|
sum[0] = sum[1] = sum[2] = sum[3] = 0;
|
||
|
for (i = 0; i < 2048; i += 4)
|
||
|
{
|
||
|
/* DON'T optimize this into DWORD !! (breaks overflow) */
|
||
|
sum[0] += superblock[i+0];
|
||
|
sum[1] += superblock[i+1];
|
||
|
sum[2] += superblock[i+2];
|
||
|
sum[3] += superblock[i+3];
|
||
|
}
|
||
|
/*
|
||
|
* OK, another braindead one... argh. Just believe it.
|
||
|
* Me$$ysoft chose to reverse the serial number in NT4/W2K.
|
||
|
* It's true and nobody will ever be able to change it.
|
||
|
*/
|
||
|
if (GetVersion() & 0x80000000)
|
||
|
return (sum[3] << 24) | (sum[2] << 16) | (sum[1] << 8) | sum[0];
|
||
|
else
|
||
|
return (sum[0] << 24) | (sum[1] << 16) | (sum[2] << 8) | sum[3];
|
||
|
}
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
/**************************************************************************
|
||
|
* VOLUME_GetAudioCDSerial
|
||
|
*/
|
||
|
static DWORD VOLUME_GetAudioCDSerial( const CDROM_TOC *toc )
|
||
|
{
|
||
|
DWORD serial = 0;
|
||
|
int i;
|
||
|
|
||
|
for (i = 0; i <= toc->LastTrack - toc->FirstTrack; i++)
|
||
|
serial += ((toc->TrackData[i].Address[1] << 16) |
|
||
|
(toc->TrackData[i].Address[2] << 8) |
|
||
|
toc->TrackData[i].Address[3]);
|
||
|
|
||
|
/*
|
||
|
* dwStart, dwEnd collect the beginning and end of the disc respectively, in
|
||
|
* frames.
|
||
|
* There it is collected for correcting the serial when there are less than
|
||
|
* 3 tracks.
|
||
|
*/
|
||
|
if (toc->LastTrack - toc->FirstTrack + 1 < 3)
|
||
|
{
|
||
|
DWORD dwStart = FRAME_OF_TOC(toc, toc->FirstTrack);
|
||
|
DWORD dwEnd = FRAME_OF_TOC(toc, toc->LastTrack + 1);
|
||
|
serial += dwEnd - dwStart;
|
||
|
}
|
||
|
return serial;
|
||
|
}
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
* GetVolumeInformationW (KERNEL32.@)
|
||
|
*/
|
||
|
BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len,
|
||
|
DWORD *serial, DWORD *filename_len, DWORD *flags,
|
||
|
LPWSTR fsname, DWORD fsname_len )
|
||
|
{
|
||
|
static const WCHAR audiocdW[] = {'A','u','d','i','o',' ','C','D',0};
|
||
|
static const WCHAR fatW[] = {'F','A','T',0};
|
||
|
static const WCHAR cdfsW[] = {'C','D','F','S',0};
|
||
|
|
||
|
WCHAR device[] = {'\\','\\','.','\\','A',':',0};
|
||
|
HANDLE handle;
|
||
|
enum fs_type type = FS_UNKNOWN;
|
||
|
|
||
|
if (!root)
|
||
|
{
|
||
|
WCHAR path[MAX_PATH];
|
||
|
GetCurrentDirectoryW( MAX_PATH, path );
|
||
|
device[4] = path[0];
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if (!root[0] || root[1] != ':')
|
||
|
{
|
||
|
SetLastError( ERROR_INVALID_NAME );
|
||
|
return FALSE;
|
||
|
}
|
||
|
device[4] = root[0];
|
||
|
}
|
||
|
|
||
|
/* try to open the device */
|
||
|
|
||
|
handle = CreateFileW( device, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
|
||
|
NULL, OPEN_EXISTING, 0, 0 );
|
||
|
if (handle != INVALID_HANDLE_VALUE)
|
||
|
{
|
||
|
BYTE superblock[SUPERBLOCK_SIZE];
|
||
|
CDROM_TOC toc;
|
||
|
DWORD br;
|
||
|
|
||
|
/* check for audio CD */
|
||
|
/* FIXME: we only check the first track for now */
|
||
|
if (DeviceIoControl( handle, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, 0 ))
|
||
|
{
|
||
|
if (!(toc.TrackData[0].Control & 0x04)) /* audio track */
|
||
|
{
|
||
|
TRACE( "%s: found audio CD\n", debugstr_w(device) );
|
||
|
if (label) lstrcpynW( label, audiocdW, label_len );
|
||
|
if (serial) *serial = VOLUME_GetAudioCDSerial( &toc );
|
||
|
CloseHandle( handle );
|
||
|
type = FS_ISO9660;
|
||
|
goto fill_fs_info;
|
||
|
}
|
||
|
type = VOLUME_ReadCDSuperblock( handle, superblock );
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
type = VOLUME_ReadFATSuperblock( handle, superblock );
|
||
|
if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
|
||
|
}
|
||
|
CloseHandle( handle );
|
||
|
TRACE( "%s: found fs type %d\n", debugstr_w(device), type );
|
||
|
if (type == FS_ERROR) return FALSE;
|
||
|
|
||
|
if (label && label_len) VOLUME_GetSuperblockLabel( type, superblock, label, label_len );
|
||
|
if (serial) *serial = VOLUME_GetSuperblockSerial( type, superblock );
|
||
|
goto fill_fs_info;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() );
|
||
|
if (GetLastError() != ERROR_ACCESS_DENIED) return FALSE;
|
||
|
}
|
||
|
|
||
|
/* we couldn't open the device, fallback to default strategy */
|
||
|
|
||
|
switch(GetDriveTypeW( root ))
|
||
|
{
|
||
|
case DRIVE_UNKNOWN:
|
||
|
case DRIVE_NO_ROOT_DIR:
|
||
|
SetLastError( ERROR_NOT_READY );
|
||
|
return FALSE;
|
||
|
case DRIVE_REMOVABLE:
|
||
|
case DRIVE_FIXED:
|
||
|
case DRIVE_REMOTE:
|
||
|
case DRIVE_RAMDISK:
|
||
|
type = FS_UNKNOWN;
|
||
|
break;
|
||
|
case DRIVE_CDROM:
|
||
|
type = FS_ISO9660;
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
if (label && label_len)
|
||
|
{
|
||
|
WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
|
||
|
|
||
|
labelW[0] = device[4];
|
||
|
handle = CreateFileW( labelW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
||
|
OPEN_EXISTING, 0, 0 );
|
||
|
if (handle != INVALID_HANDLE_VALUE)
|
||
|
{
|
||
|
char buffer[256], *p;
|
||
|
DWORD size;
|
||
|
|
||
|
if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
|
||
|
CloseHandle( handle );
|
||
|
p = buffer + size;
|
||
|
while (p > buffer && (p[-1] == ' ' || p[-1] == '\r' || p[-1] == '\n')) p--;
|
||
|
*p = 0;
|
||
|
if (!MultiByteToWideChar( CP_UNIXCP, 0, buffer, -1, label, label_len ))
|
||
|
label[label_len-1] = 0;
|
||
|
}
|
||
|
else label[0] = 0;
|
||
|
}
|
||
|
if (serial)
|
||
|
{
|
||
|
WCHAR serialW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0};
|
||
|
|
||
|
serialW[0] = device[4];
|
||
|
handle = CreateFileW( serialW, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
||
|
OPEN_EXISTING, 0, 0 );
|
||
|
if (handle != INVALID_HANDLE_VALUE)
|
||
|
{
|
||
|
char buffer[32];
|
||
|
DWORD size;
|
||
|
|
||
|
if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
|
||
|
CloseHandle( handle );
|
||
|
buffer[size] = 0;
|
||
|
*serial = strtoul( buffer, NULL, 16 );
|
||
|
}
|
||
|
else *serial = 0;
|
||
|
}
|
||
|
|
||
|
fill_fs_info: /* now fill in the information that depends on the file system type */
|
||
|
|
||
|
switch(type)
|
||
|
{
|
||
|
case FS_ISO9660:
|
||
|
if (fsname) lstrcpynW( fsname, cdfsW, fsname_len );
|
||
|
if (filename_len) *filename_len = 221;
|
||
|
if (flags) *flags = FILE_READ_ONLY_VOLUME;
|
||
|
break;
|
||
|
case FS_FAT1216:
|
||
|
case FS_FAT32:
|
||
|
default: /* default to FAT file system (FIXME) */
|
||
|
if (fsname) lstrcpynW( fsname, fatW, fsname_len );
|
||
|
if (filename_len) *filename_len = 255;
|
||
|
if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */
|
||
|
break;
|
||
|
}
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
* GetVolumeInformationA (KERNEL32.@)
|
||
|
*/
|
||
|
BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
|
||
|
DWORD label_len, DWORD *serial,
|
||
|
DWORD *filename_len, DWORD *flags,
|
||
|
LPSTR fsname, DWORD fsname_len )
|
||
|
{
|
||
|
UNICODE_STRING rootW;
|
||
|
LPWSTR labelW, fsnameW;
|
||
|
BOOL ret;
|
||
|
|
||
|
if (root) RtlCreateUnicodeStringFromAsciiz(&rootW, root);
|
||
|
else rootW.Buffer = NULL;
|
||
|
labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL;
|
||
|
fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL;
|
||
|
|
||
|
if ((ret = GetVolumeInformationW(rootW.Buffer, labelW, label_len, serial,
|
||
|
filename_len, flags, fsnameW, fsname_len)))
|
||
|
{
|
||
|
if (label) WideCharToMultiByte(CP_ACP, 0, labelW, -1, label, label_len, NULL, NULL);
|
||
|
if (fsname) WideCharToMultiByte(CP_ACP, 0, fsnameW, -1, fsname, fsname_len, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
RtlFreeUnicodeString(&rootW);
|
||
|
if (labelW) HeapFree( GetProcessHeap(), 0, labelW );
|
||
|
if (fsnameW) HeapFree( GetProcessHeap(), 0, fsnameW );
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
* SetVolumeLabelW (KERNEL32.@)
|
||
|
*/
|
||
|
BOOL WINAPI SetVolumeLabelW( LPCWSTR root, LPCWSTR label )
|
||
|
{
|
||
|
WCHAR device[] = {'\\','\\','.','\\','A',':',0};
|
||
|
HANDLE handle;
|
||
|
enum fs_type type = FS_UNKNOWN;
|
||
|
|
||
|
if (!root)
|
||
|
{
|
||
|
WCHAR path[MAX_PATH];
|
||
|
GetCurrentDirectoryW( MAX_PATH, path );
|
||
|
device[4] = path[0];
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if (!root[0] || root[1] != ':')
|
||
|
{
|
||
|
SetLastError( ERROR_INVALID_NAME );
|
||
|
return FALSE;
|
||
|
}
|
||
|
device[4] = root[0];
|
||
|
}
|
||
|
|
||
|
/* try to open the device */
|
||
|
|
||
|
handle = CreateFileW( device, GENERIC_READ|GENERIC_WRITE, 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 );
|
||
|
CloseHandle( handle );
|
||
|
return ret;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
TRACE( "cannot open device %s: err %ld\n", debugstr_w(device), GetLastError() );
|
||
|
if (GetLastError() != ERROR_ACCESS_DENIED) return FALSE;
|
||
|
}
|
||
|
|
||
|
/* we couldn't open the device, fallback to default strategy */
|
||
|
|
||
|
switch(GetDriveTypeW( root ))
|
||
|
{
|
||
|
case DRIVE_UNKNOWN:
|
||
|
case DRIVE_NO_ROOT_DIR:
|
||
|
SetLastError( ERROR_NOT_READY );
|
||
|
break;
|
||
|
case DRIVE_REMOVABLE:
|
||
|
case DRIVE_FIXED:
|
||
|
{
|
||
|
WCHAR labelW[] = {'A',':','\\','.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
|
||
|
|
||
|
labelW[0] = device[4];
|
||
|
handle = CreateFileW( labelW, GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
||
|
CREATE_ALWAYS, 0, 0 );
|
||
|
if (handle != INVALID_HANDLE_VALUE)
|
||
|
{
|
||
|
char buffer[64];
|
||
|
DWORD size;
|
||
|
|
||
|
if (!WideCharToMultiByte( CP_UNIXCP, 0, label, -1, buffer, sizeof(buffer), NULL, NULL ))
|
||
|
buffer[sizeof(buffer)-1] = 0;
|
||
|
WriteFile( handle, buffer, strlen(buffer), &size, NULL );
|
||
|
CloseHandle( handle );
|
||
|
return TRUE;
|
||
|
}
|
||
|
break;
|
||
|
}
|
||
|
case DRIVE_REMOTE:
|
||
|
case DRIVE_RAMDISK:
|
||
|
case DRIVE_CDROM:
|
||
|
SetLastError( ERROR_ACCESS_DENIED );
|
||
|
break;
|
||
|
}
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
/***********************************************************************
|
||
|
* SetVolumeLabelA (KERNEL32.@)
|
||
|
*/
|
||
|
BOOL WINAPI SetVolumeLabelA(LPCSTR root, LPCSTR volname)
|
||
|
{
|
||
|
UNICODE_STRING rootW, volnameW;
|
||
|
BOOL ret;
|
||
|
|
||
|
if (root) RtlCreateUnicodeStringFromAsciiz(&rootW, root);
|
||
|
else rootW.Buffer = NULL;
|
||
|
if (volname) RtlCreateUnicodeStringFromAsciiz(&volnameW, volname);
|
||
|
else volnameW.Buffer = NULL;
|
||
|
|
||
|
ret = SetVolumeLabelW( rootW.Buffer, volnameW.Buffer );
|
||
|
|
||
|
RtlFreeUnicodeString(&rootW);
|
||
|
RtlFreeUnicodeString(&volnameW);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
|
||
|
/***********************************************************************
|
||
|
* GetVolumeNameForVolumeMountPointW (KERNEL32.@)
|
||
|
*/
|
||
|
BOOL WINAPI GetVolumeNameForVolumeMountPointW(LPCWSTR str, LPWSTR dst, DWORD size)
|
||
|
{
|
||
|
FIXME("(%s, %p, %lx): stub\n", debugstr_w(str), dst, size);
|
||
|
return 0;
|
||
|
}
|