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Sweden-Number/dlls/kernel32/volume.c
Paul Gofman 4907f2626c kernel32: Output a message in GetVolumeInformationW() when device has no read access. 
A lot of applications fail to install from CDs or mounted ISO images when Wine does
not return correct volume label from GetVolumeInformation() repeatedly asking to
insert correct disk. Most of the time it happens because the block device is read only
for user (which is typical default behaviour) and FS info cannot be read.
It looks like the hint about what went wrong will simplify things in this common case.

Signed-off-by: Paul Gofman <gofmanp@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2019-11-07 20:18:46 +01:00

2161 lines
71 KiB
C
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/*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winternl.h"
#include "winioctl.h"
#include "ntddcdrm.h"
#define WINE_MOUNTMGR_EXTENSIONS
#include "ddk/mountmgr.h"
#include "kernel_private.h"
#include "wine/library.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(volume);
#define BLOCK_SIZE 2048
#define SUPERBLOCK_SIZE BLOCK_SIZE
#define SYMBOLIC_LINK_QUERY 0x0001
#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,
FS_UDF /* For reference [E] = Ecma-167.pdf, [U] = udf260.pdf */
};
/* get the path of a dos device symlink in the $WINEPREFIX/dosdevices directory */
static char *get_dos_device_path( LPCWSTR name )
{
const char *config_dir = wine_get_config_dir();
char *buffer, *dev;
int i;
if (!(buffer = HeapAlloc( GetProcessHeap(), 0,
strlen(config_dir) + sizeof("/dosdevices/") + 5 )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return NULL;
}
strcpy( buffer, config_dir );
strcat( buffer, "/dosdevices/" );
dev = buffer + strlen(buffer);
/* no codepage conversion, DOS device names are ASCII anyway */
for (i = 0; i < 5; i++)
if (!(dev[i] = (char)tolowerW(name[i]))) break;
dev[5] = 0;
return buffer;
}
/* read the contents of an NT symlink object */
static NTSTATUS read_nt_symlink( const WCHAR *name, WCHAR *target, DWORD size )
{
NTSTATUS status;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HANDLE handle;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nameW;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, name );
if (!(status = NtOpenSymbolicLinkObject( &handle, SYMBOLIC_LINK_QUERY, &attr )))
{
UNICODE_STRING targetW;
targetW.Buffer = target;
targetW.MaximumLength = (size - 1) * sizeof(WCHAR);
status = NtQuerySymbolicLinkObject( handle, &targetW, NULL );
if (!status) target[targetW.Length / sizeof(WCHAR)] = 0;
NtClose( handle );
}
return status;
}
/* open a handle to a device root */
static BOOL open_device_root( LPCWSTR root, HANDLE *handle )
{
static const WCHAR default_rootW[] = {'\\',0};
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
if (!root) root = default_rootW;
if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( handle, SYNCHRONIZE, &attr, &io, 0,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &nt_name );
return set_ntstatus( status );
}
/* query the type of a drive from the mount manager */
static DWORD get_mountmgr_drive_type( LPCWSTR root )
{
HANDLE mgr;
struct mountmgr_unix_drive data;
DWORD br;
memset( &data, 0, sizeof(data) );
if (root) data.letter = root[0];
else
{
WCHAR curdir[MAX_PATH];
GetCurrentDirectoryW( MAX_PATH, curdir );
if (curdir[1] != ':' || curdir[2] != '\\') return DRIVE_UNKNOWN;
data.letter = curdir[0];
}
mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return DRIVE_UNKNOWN;
if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_UNIX_DRIVE, &data, sizeof(data), &data,
sizeof(data), &br, NULL ) && GetLastError() != ERROR_MORE_DATA)
data.type = DRIVE_UNKNOWN;
CloseHandle( mgr );
return data.type;
}
/* get the label by reading it from a file at the root of the filesystem */
static void get_filesystem_label( const UNICODE_STRING *device, WCHAR *label, DWORD len )
{
static const WCHAR labelW[] = {'.','w','i','n','d','o','w','s','-','l','a','b','e','l',0};
HANDLE handle;
UNICODE_STRING name;
IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr;
label[0] = 0;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
name.MaximumLength = device->Length + sizeof(labelW);
name.Length = name.MaximumLength - sizeof(WCHAR);
if (!(name.Buffer = HeapAlloc( GetProcessHeap(), 0, name.MaximumLength ))) return;
memcpy( name.Buffer, device->Buffer, device->Length );
memcpy( name.Buffer + device->Length / sizeof(WCHAR), labelW, sizeof(labelW) );
if (!NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ))
{
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, len ))
label[len-1] = 0;
}
RtlFreeUnicodeString( &name );
}
/* get the serial number by reading it from a file at the root of the filesystem */
static DWORD get_filesystem_serial( const UNICODE_STRING *device )
{
static const WCHAR serialW[] = {'.','w','i','n','d','o','w','s','-','s','e','r','i','a','l',0};
HANDLE handle;
UNICODE_STRING name;
IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr;
DWORD ret = 0;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
name.MaximumLength = device->Length + sizeof(serialW);
name.Length = name.MaximumLength - sizeof(WCHAR);
if (!(name.Buffer = HeapAlloc( GetProcessHeap(), 0, name.MaximumLength ))) return 0;
memcpy( name.Buffer, device->Buffer, device->Length );
memcpy( name.Buffer + device->Length / sizeof(WCHAR), serialW, sizeof(serialW) );
if (!NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_SYNCHRONOUS_IO_NONALERT ))
{
char buffer[32];
DWORD size;
if (!ReadFile( handle, buffer, sizeof(buffer)-1, &size, NULL )) size = 0;
CloseHandle( handle );
buffer[size] = 0;
ret = strtoul( buffer, NULL, 16 );
}
RtlFreeUnicodeString( &name );
return ret;
}
/******************************************************************
* VOLUME_FindCdRomDataBestVoldesc
*/
static DWORD VOLUME_FindCdRomDataBestVoldesc( HANDLE handle )
{
BYTE cur_vd_type, max_vd_type = 0;
BYTE buffer[0x800];
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 ))
{
if (GetLastError() == ERROR_BAD_DEV_TYPE) return FS_UNKNOWN; /* not a real device */
return FS_ERROR;
}
if (size < SUPERBLOCK_SIZE) return FS_UNKNOWN;
/* FIXME: do really all FAT have their name beginning with
* "FAT" ? (At least FAT12, FAT16 and FAT32 have :)
*/
if (!memcmp(buff+0x36, "FAT", 3) || !memcmp(buff+0x52, "FAT", 3))
{
/* guess which type of FAT we have */
int reasonable;
unsigned int sectors,
sect_per_fat,
total_sectors,
num_boot_sectors,
num_fats,
num_root_dir_ents,
bytes_per_sector,
sectors_per_cluster,
nclust;
sect_per_fat = GETWORD(buff, 0x16);
if (!sect_per_fat) sect_per_fat = GETLONG(buff, 0x24);
total_sectors = GETWORD(buff, 0x13);
if (!total_sectors)
total_sectors = GETLONG(buff, 0x20);
num_boot_sectors = GETWORD(buff, 0x0e);
num_fats = buff[0x10];
num_root_dir_ents = GETWORD(buff, 0x11);
bytes_per_sector = GETWORD(buff, 0x0b);
sectors_per_cluster = buff[0x0d];
/* check if the parameters are reasonable and will not cause
* arithmetic errors in the calculation */
reasonable = num_boot_sectors < total_sectors &&
num_fats < 16 &&
bytes_per_sector >= 512 && bytes_per_sector % 512 == 0 &&
sectors_per_cluster >= 1;
if (!reasonable) return FS_UNKNOWN;
sectors = total_sectors - num_boot_sectors - num_fats * sect_per_fat -
(num_root_dir_ents * 32 + bytes_per_sector - 1) / bytes_per_sector;
nclust = sectors / sectors_per_cluster;
if ((buff[0x42] == 0x28 || buff[0x42] == 0x29) &&
!memcmp(buff+0x52, "FAT", 3)) return FS_FAT32;
if (nclust < 65525)
{
if ((buff[0x26] == 0x28 || buff[0x26] == 0x29) &&
!memcmp(buff+0x36, "FAT", 3))
return FS_FAT1216;
}
}
return FS_UNKNOWN;
}
/***********************************************************************
* VOLUME_ReadCDBlock
*/
static BOOL VOLUME_ReadCDBlock( HANDLE handle, BYTE *buff, INT offs )
{
DWORD size, whence = offs >= 0 ? FILE_BEGIN : FILE_END;
if (SetFilePointer( handle, offs, NULL, whence ) != offs ||
!ReadFile( handle, buff, SUPERBLOCK_SIZE, &size, NULL ) ||
size != SUPERBLOCK_SIZE)
return FALSE;
return TRUE;
}
/***********************************************************************
* VOLUME_ReadCDSuperblock
*/
static enum fs_type VOLUME_ReadCDSuperblock( HANDLE handle, BYTE *buff )
{
int i;
DWORD offs;
/* Check UDF first as UDF and ISO9660 structures can coexist on the same medium
* Starting from sector 16, we may find :
* - a CD-ROM Volume Descriptor Set (ISO9660) containing one or more Volume Descriptors
* - an Extended Area (UDF) -- [E] 2/8.3.1 and [U] 2.1.7
* There is no explicit end so read 16 sectors and then give up */
for( i=16; i<16+16; i++)
{
if (!VOLUME_ReadCDBlock(handle, buff, i*BLOCK_SIZE))
continue;
/* We are supposed to check "BEA01", "NSR0x" and "TEA01" IDs + verify tag checksum
* but we assume the volume is well-formatted */
if (!memcmp(&buff[1], "BEA01", 5)) return FS_UDF;
}
offs = VOLUME_FindCdRomDataBestVoldesc( handle );
if (!offs) return FS_UNKNOWN;
if (!VOLUME_ReadCDBlock(handle, buff, offs))
return FS_ERROR;
/* check for the iso9660 identifier */
if (!memcmp(&buff[1], "CD001", 5)) return FS_ISO9660;
return FS_UNKNOWN;
}
/**************************************************************************
* UDF_Find_PVD
* Find the Primary Volume Descriptor
*/
static BOOL UDF_Find_PVD( HANDLE handle, BYTE pvd[] )
{
unsigned int i;
DWORD offset;
INT locations[] = { 256, -1, -257, 512 };
for(i=0; i<ARRAY_SIZE(locations); i++)
{
if (!VOLUME_ReadCDBlock(handle, pvd, locations[i]*BLOCK_SIZE))
return FALSE;
/* Tag Identifier of Anchor Volume Descriptor Pointer is 2 -- [E] 3/10.2.1 */
if (pvd[0]==2 && pvd[1]==0)
{
/* Tag location (Uint32) at offset 12, little-endian */
offset = pvd[20 + 0];
offset |= pvd[20 + 1] << 8;
offset |= pvd[20 + 2] << 16;
offset |= pvd[20 + 3] << 24;
offset *= BLOCK_SIZE;
if (!VOLUME_ReadCDBlock(handle, pvd, offset))
return FALSE;
/* Check for the Primary Volume Descriptor Tag Id -- [E] 3/10.1.1 */
if (pvd[0]!=1 || pvd[1]!=0)
return FALSE;
/* 8 or 16 bits per character -- [U] 2.1.1 */
if (!(pvd[24]==8 || pvd[24]==16))
return FALSE;
return TRUE;
}
}
return FALSE;
}
/**************************************************************************
* VOLUME_GetSuperblockLabel
*/
static void VOLUME_GetSuperblockLabel( const UNICODE_STRING *device, HANDLE handle,
enum fs_type type, const BYTE *superblock,
WCHAR *label, DWORD len )
{
const BYTE *label_ptr = NULL;
DWORD label_len;
switch(type)
{
case FS_ERROR:
label_len = 0;
break;
case FS_UNKNOWN:
get_filesystem_label( device, label, len );
return;
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 */
unsigned 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;
}
case FS_UDF:
{
BYTE pvd[BLOCK_SIZE];
if(!UDF_Find_PVD(handle, pvd))
{
label_len = 0;
break;
}
/* [E] 3/10.1.4 and [U] 2.1.1 */
if(pvd[24]==8)
{
label_ptr = pvd + 24 + 1;
label_len = pvd[24+32-1];
break;
}
else
{
unsigned int i;
label_len = 1 + pvd[24+32-1];
for(i=0; i<label_len && i<len; i+=2)
label[i/2] = (pvd[24+1 +i] << 8) | pvd[24+1 +i+1];
label[label_len] = 0;
return;
}
}
}
if (label_len) RtlMultiByteToUnicodeN( label, (len-1) * sizeof(WCHAR),
&label_len, (LPCSTR)label_ptr, label_len );
label_len /= sizeof(WCHAR);
label[label_len] = 0;
while (label_len && label[label_len-1] == ' ') label[--label_len] = 0;
}
/**************************************************************************
* UDF_Find_FSD_Sector
* Find the File Set Descriptor used to compute the serial of a UDF volume
*/
static int UDF_Find_FSD_Sector( HANDLE handle, BYTE block[] )
{
int i, PVD_sector, PD_sector, PD_length;
if(!UDF_Find_PVD(handle,block))
goto default_sector;
/* Retrieve the tag location of the PVD -- [E] 3/7.2 */
PVD_sector = block[12 + 0];
PVD_sector |= block[12 + 1] << 8;
PVD_sector |= block[12 + 2] << 16;
PVD_sector |= block[12 + 3] << 24;
/* Find the Partition Descriptor */
for(i=PVD_sector+1; ; i++)
{
if(!VOLUME_ReadCDBlock(handle, block, i*BLOCK_SIZE))
goto default_sector;
/* Partition Descriptor Tag Id -- [E] 3/10.5.1 */
if(block[0]==5 && block[1]==0)
break;
/* Terminating Descriptor Tag Id -- [E] 3/10.9.1 */
if(block[0]==8 && block[1]==0)
goto default_sector;
}
/* Find the partition starting location -- [E] 3/10.5.8 */
PD_sector = block[188 + 0];
PD_sector |= block[188 + 1] << 8;
PD_sector |= block[188 + 2] << 16;
PD_sector |= block[188 + 3] << 24;
/* Find the partition length -- [E] 3/10.5.9 */
PD_length = block[192 + 0];
PD_length |= block[192 + 1] << 8;
PD_length |= block[192 + 2] << 16;
PD_length |= block[192 + 3] << 24;
for(i=PD_sector; i<PD_sector+PD_length; i++)
{
if(!VOLUME_ReadCDBlock(handle, block, i*BLOCK_SIZE))
goto default_sector;
/* File Set Descriptor Tag Id -- [E] 3/14.1.1 */
if(block[0]==0 && block[1]==1)
return i;
}
default_sector:
WARN("FSD sector not found, serial may be incorrect\n");
return 257;
}
/**************************************************************************
* VOLUME_GetSuperblockSerial
*/
static DWORD VOLUME_GetSuperblockSerial( const UNICODE_STRING *device, HANDLE handle,
enum fs_type type, const BYTE *superblock )
{
int FSD_sector;
BYTE block[BLOCK_SIZE];
switch(type)
{
case FS_ERROR:
break;
case FS_UNKNOWN:
return get_filesystem_serial( device );
case FS_FAT1216:
return GETLONG( superblock, 0x27 );
case FS_FAT32:
return GETLONG( superblock, 0x33 );
case FS_UDF:
FSD_sector = UDF_Find_FSD_Sector(handle, block);
if (!VOLUME_ReadCDBlock(handle, block, FSD_sector*BLOCK_SIZE))
break;
superblock = block;
/* fallthrough */
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) || type == FS_UDF)
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 fat32W[] = {'F','A','T','3','2',0};
static const WCHAR ntfsW[] = {'N','T','F','S',0};
static const WCHAR cdfsW[] = {'C','D','F','S',0};
static const WCHAR udfW[] = {'U','D','F',0};
static const WCHAR default_rootW[] = {'\\',0};
HANDLE handle;
NTSTATUS status;
UNICODE_STRING nt_name;
IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr;
FILE_FS_DEVICE_INFORMATION info;
WCHAR *p;
enum fs_type type = FS_UNKNOWN;
BOOL ret = FALSE;
if (!root) root = default_rootW;
if (!RtlDosPathNameToNtPathName_U( root, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
/* there must be exactly one backslash in the name, at the end */
p = memchrW( nt_name.Buffer + 4, '\\', (nt_name.Length - 4) / sizeof(WCHAR) );
if (p != nt_name.Buffer + nt_name.Length / sizeof(WCHAR) - 1)
{
/* check if root contains an explicit subdir */
if (root[0] && root[1] == ':') root += 2;
while (*root == '\\') root++;
if (strchrW( root, '\\' ))
SetLastError( ERROR_DIR_NOT_ROOT );
else
SetLastError( ERROR_INVALID_NAME );
goto done;
}
/* try to open the device */
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
status = NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
nt_name.Length += sizeof(WCHAR);
if (status == STATUS_SUCCESS)
{
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(nt_name.Buffer) );
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 );
}
TRACE( "%s: found fs type %d\n", debugstr_w(nt_name.Buffer), type );
if (type == FS_ERROR)
{
CloseHandle( handle );
goto done;
}
if (label && label_len) VOLUME_GetSuperblockLabel( &nt_name, handle, type, superblock, label, label_len );
if (serial) *serial = VOLUME_GetSuperblockSerial( &nt_name, handle, type, superblock );
CloseHandle( handle );
goto fill_fs_info;
}
else
{
TRACE( "cannot open device %s: %x\n", debugstr_w(nt_name.Buffer), status );
if (status == STATUS_ACCESS_DENIED)
MESSAGE( "wine: Read access denied for device %s, FS volume label and serial are not available.\n", debugstr_w(nt_name.Buffer) );
}
/* we couldn't open the device, fallback to default strategy */
if (!set_ntstatus( NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT )))
goto done;
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
NtClose( handle );
if (!set_ntstatus( status )) goto done;
if (info.DeviceType == FILE_DEVICE_CD_ROM_FILE_SYSTEM) type = FS_ISO9660;
if (label && label_len) get_filesystem_label( &nt_name, label, label_len );
if (serial) *serial = get_filesystem_serial( &nt_name );
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_UDF:
if (fsname) lstrcpynW( fsname, udfW, fsname_len );
if (filename_len) *filename_len = 255;
if (flags)
*flags = FILE_READ_ONLY_VOLUME | FILE_UNICODE_ON_DISK | FILE_CASE_SENSITIVE_SEARCH;
break;
case FS_FAT1216:
if (fsname) lstrcpynW( fsname, fatW, fsname_len );
case FS_FAT32:
if (type == FS_FAT32 && fsname) lstrcpynW( fsname, fat32W, fsname_len );
if (filename_len) *filename_len = 255;
if (flags) *flags = FILE_CASE_PRESERVED_NAMES; /* FIXME */
break;
default:
if (fsname) lstrcpynW( fsname, ntfsW, fsname_len );
if (filename_len) *filename_len = 255;
if (flags) *flags = FILE_CASE_PRESERVED_NAMES | FILE_PERSISTENT_ACLS;
break;
}
ret = TRUE;
done:
RtlFreeUnicodeString( &nt_name );
return ret;
}
/***********************************************************************
* GetVolumeInformationA (KERNEL32.@)
*/
BOOL WINAPI GetVolumeInformationA( LPCSTR root, LPSTR label,
DWORD label_len, DWORD *serial,
DWORD *filename_len, DWORD *flags,
LPSTR fsname, DWORD fsname_len )
{
WCHAR *rootW = NULL;
LPWSTR labelW, fsnameW;
BOOL ret;
if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
labelW = label ? HeapAlloc(GetProcessHeap(), 0, label_len * sizeof(WCHAR)) : NULL;
fsnameW = fsname ? HeapAlloc(GetProcessHeap(), 0, fsname_len * sizeof(WCHAR)) : NULL;
if ((ret = GetVolumeInformationW(rootW, labelW, label_len, serial,
filename_len, flags, fsnameW, fsname_len)))
{
if (label) FILE_name_WtoA( labelW, -1, label, label_len );
if (fsname) FILE_name_WtoA( fsnameW, -1, fsname, fsname_len );
}
HeapFree( GetProcessHeap(), 0, labelW );
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, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle != INVALID_HANDLE_VALUE)
{
BYTE superblock[SUPERBLOCK_SIZE];
type = VOLUME_ReadFATSuperblock( handle, superblock );
if (type == FS_UNKNOWN) type = VOLUME_ReadCDSuperblock( handle, superblock );
CloseHandle( handle );
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
{
TRACE( "cannot open device %s: err %d\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];
if (!label[0]) /* delete label file when setting an empty label */
return DeleteFileW( labelW ) || GetLastError() == ERROR_FILE_NOT_FOUND;
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)-1, NULL, NULL ))
buffer[sizeof(buffer)-2] = 0;
strcat( buffer, "\n" );
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)
{
WCHAR *rootW = NULL, *volnameW = NULL;
BOOL ret;
if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
if (volname && !(volnameW = FILE_name_AtoW( volname, TRUE ))) return FALSE;
ret = SetVolumeLabelW( rootW, volnameW );
HeapFree( GetProcessHeap(), 0, volnameW );
return ret;
}
/***********************************************************************
* GetVolumeNameForVolumeMountPointA (KERNEL32.@)
*/
BOOL WINAPI GetVolumeNameForVolumeMountPointA( LPCSTR path, LPSTR volume, DWORD size )
{
BOOL ret;
WCHAR volumeW[50], *pathW = NULL;
DWORD len = min(ARRAY_SIZE(volumeW), size );
TRACE("(%s, %p, %x)\n", debugstr_a(path), volume, size);
if (!path || !(pathW = FILE_name_AtoW( path, TRUE )))
return FALSE;
if ((ret = GetVolumeNameForVolumeMountPointW( pathW, volumeW, len )))
FILE_name_WtoA( volumeW, -1, volume, len );
HeapFree( GetProcessHeap(), 0, pathW );
return ret;
}
/***********************************************************************
* GetVolumeNameForVolumeMountPointW (KERNEL32.@)
*/
BOOL WINAPI GetVolumeNameForVolumeMountPointW( LPCWSTR path, LPWSTR volume, DWORD size )
{
static const WCHAR prefixW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\',0};
static const WCHAR volumeW[] = {'\\','?','?','\\','V','o','l','u','m','e','{'};
static const WCHAR trailingW[] = {'\\',0};
MOUNTMGR_MOUNT_POINT *input = NULL, *o1;
MOUNTMGR_MOUNT_POINTS *output = NULL;
WCHAR *p;
char *r;
DWORD i, i_size = 1024, o_size = 1024;
WCHAR *nonpersist_name;
WCHAR symlink_name[MAX_PATH];
NTSTATUS status;
HANDLE mgr = INVALID_HANDLE_VALUE;
BOOL ret = FALSE;
DWORD br;
TRACE("(%s, %p, %x)\n", debugstr_w(path), volume, size);
if (path[lstrlenW(path)-1] != '\\')
{
SetLastError( ERROR_INVALID_NAME );
return FALSE;
}
if (size < 50)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return FALSE;
}
/* if length of input is > 3 then it must be a mounted folder */
if (lstrlenW(path) > 3)
{
FIXME("Mounted Folders are not yet supported\n");
SetLastError( ERROR_NOT_A_REPARSE_POINT );
return FALSE;
}
mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return FALSE;
if (!(input = HeapAlloc( GetProcessHeap(), 0, i_size )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
goto err_ret;
}
if (!(output = HeapAlloc( GetProcessHeap(), 0, o_size )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
goto err_ret;
}
/* construct the symlink name as "\DosDevices\C:" */
lstrcpyW( symlink_name, prefixW );
lstrcatW( symlink_name, path );
symlink_name[lstrlenW(symlink_name)-1] = 0;
/* Take the mount point and get the "nonpersistent name" */
/* We will then take that and get the volume name */
nonpersist_name = (WCHAR *)(input + 1);
status = read_nt_symlink( symlink_name, nonpersist_name, i_size - sizeof(*input) );
TRACE("read_nt_symlink got stat=%x, for %s, got <%s>\n", status,
debugstr_w(symlink_name), debugstr_w(nonpersist_name));
if (status != STATUS_SUCCESS)
{
SetLastError( ERROR_FILE_NOT_FOUND );
goto err_ret;
}
/* Now take the "nonpersistent name" and ask the mountmgr */
/* to give us all the mount points. One of them will be */
/* the volume name (format of \??\Volume{). */
memset( input, 0, sizeof(*input) ); /* clear all input parameters */
input->DeviceNameOffset = sizeof(*input);
input->DeviceNameLength = lstrlenW( nonpersist_name) * sizeof(WCHAR);
i_size = input->DeviceNameOffset + input->DeviceNameLength;
output->Size = o_size;
/* now get the true volume name from the mountmgr */
if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, input, i_size,
output, o_size, &br, NULL ))
goto err_ret;
/* Verify and return the data, note string is not null terminated */
TRACE("found %d matching mount points\n", output->NumberOfMountPoints);
if (output->NumberOfMountPoints < 1)
{
SetLastError( ERROR_NO_VOLUME_ID );
goto err_ret;
}
o1 = &output->MountPoints[0];
/* look for the volume name in returned values */
for(i=0;i<output->NumberOfMountPoints;i++)
{
p = (WCHAR*)((char *)output + o1->SymbolicLinkNameOffset);
r = (char *)output + o1->UniqueIdOffset;
TRACE("found symlink=%s, unique=%s, devname=%s\n",
debugstr_wn(p, o1->SymbolicLinkNameLength/sizeof(WCHAR)),
debugstr_an(r, o1->UniqueIdLength),
debugstr_wn((WCHAR*)((char *)output + o1->DeviceNameOffset),
o1->DeviceNameLength/sizeof(WCHAR)));
if (!strncmpW( p, volumeW, ARRAY_SIZE( volumeW )))
{
/* is there space in the return variable ?? */
if ((o1->SymbolicLinkNameLength/sizeof(WCHAR))+2 > size)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
goto err_ret;
}
memcpy( volume, p, o1->SymbolicLinkNameLength );
volume[o1->SymbolicLinkNameLength / sizeof(WCHAR)] = 0;
lstrcatW( volume, trailingW );
/* change second char from '?' to '\' */
volume[1] = '\\';
ret = TRUE;
break;
}
o1++;
}
err_ret:
HeapFree( GetProcessHeap(), 0, input );
HeapFree( GetProcessHeap(), 0, output );
CloseHandle( mgr );
return ret;
}
/***********************************************************************
* DefineDosDeviceW (KERNEL32.@)
*/
BOOL WINAPI DefineDosDeviceW( DWORD flags, LPCWSTR devname, LPCWSTR targetpath )
{
DWORD len, dosdev;
BOOL ret = FALSE;
char *path = NULL, *target, *p;
TRACE("%x, %s, %s\n", flags, debugstr_w(devname), debugstr_w(targetpath));
if (!(flags & DDD_REMOVE_DEFINITION))
{
if (!(flags & DDD_RAW_TARGET_PATH))
{
FIXME( "(0x%08x,%s,%s) DDD_RAW_TARGET_PATH flag not set, not supported yet\n",
flags, debugstr_w(devname), debugstr_w(targetpath) );
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
len = WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, NULL, 0, NULL, NULL );
if ((target = HeapAlloc( GetProcessHeap(), 0, len )))
{
WideCharToMultiByte( CP_UNIXCP, 0, targetpath, -1, target, len, NULL, NULL );
for (p = target; *p; p++) if (*p == '\\') *p = '/';
}
else
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return FALSE;
}
}
else target = NULL;
/* first check for a DOS device */
if ((dosdev = RtlIsDosDeviceName_U( devname )))
{
WCHAR name[5];
memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
path = get_dos_device_path( name );
}
else if (isalphaW(devname[0]) && devname[1] == ':' && !devname[2]) /* drive mapping */
{
path = get_dos_device_path( devname );
}
else SetLastError( ERROR_FILE_NOT_FOUND );
if (path)
{
if (target)
{
TRACE( "creating symlink %s -> %s\n", path, target );
unlink( path );
if (!symlink( target, path )) ret = TRUE;
else FILE_SetDosError();
}
else
{
TRACE( "removing symlink %s\n", path );
if (!unlink( path )) ret = TRUE;
else FILE_SetDosError();
}
HeapFree( GetProcessHeap(), 0, path );
}
HeapFree( GetProcessHeap(), 0, target );
return ret;
}
/***********************************************************************
* DefineDosDeviceA (KERNEL32.@)
*/
BOOL WINAPI DefineDosDeviceA(DWORD flags, LPCSTR devname, LPCSTR targetpath)
{
WCHAR *devW, *targetW = NULL;
BOOL ret;
if (!(devW = FILE_name_AtoW( devname, FALSE ))) return FALSE;
if (targetpath && !(targetW = FILE_name_AtoW( targetpath, TRUE ))) return FALSE;
ret = DefineDosDeviceW(flags, devW, targetW);
HeapFree( GetProcessHeap(), 0, targetW );
return ret;
}
/***********************************************************************
* QueryDosDeviceW (KERNEL32.@)
*
* returns array of strings terminated by \0, terminated by \0
*/
DWORD WINAPI QueryDosDeviceW( LPCWSTR devname, LPWSTR target, DWORD bufsize )
{
static const WCHAR dosdevW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\',0};
UNICODE_STRING nt_name;
NTSTATUS status;
if (!bufsize)
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
return 0;
}
if (devname)
{
WCHAR name[8];
WCHAR *buffer;
DWORD dosdev, ret = 0;
if ((dosdev = RtlIsDosDeviceName_U( devname )))
{
memcpy( name, devname + HIWORD(dosdev)/sizeof(WCHAR), LOWORD(dosdev) );
name[LOWORD(dosdev)/sizeof(WCHAR)] = 0;
devname = name;
}
if (!(buffer = HeapAlloc( GetProcessHeap(), 0, sizeof(dosdevW) + strlenW(devname)*sizeof(WCHAR) )))
{
SetLastError( ERROR_OUTOFMEMORY );
return 0;
}
memcpy( buffer, dosdevW, sizeof(dosdevW) );
strcatW( buffer, devname );
status = read_nt_symlink( buffer, target, bufsize );
HeapFree( GetProcessHeap(), 0, buffer );
if (!set_ntstatus( status )) return 0;
ret = strlenW( target ) + 1;
if (ret < bufsize) target[ret++] = 0; /* add an extra null */
return ret;
}
else /* return a list of all devices */
{
OBJECT_ATTRIBUTES attr;
HANDLE handle;
WCHAR *p = target;
RtlInitUnicodeString( &nt_name, dosdevW );
nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenDirectoryObject( &handle, FILE_LIST_DIRECTORY, &attr );
if (!status)
{
char data[1024];
DIRECTORY_BASIC_INFORMATION *info = (DIRECTORY_BASIC_INFORMATION *)data;
ULONG ctx = 0, len;
while (!NtQueryDirectoryObject( handle, info, sizeof(data), 1, 0, &ctx, &len ))
{
if (p + info->ObjectName.Length/sizeof(WCHAR) + 1 >= target + bufsize)
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
NtClose( handle );
return 0;
}
memcpy( p, info->ObjectName.Buffer, info->ObjectName.Length );
p += info->ObjectName.Length/sizeof(WCHAR);
*p++ = 0;
}
NtClose( handle );
}
*p++ = 0; /* terminating null */
return p - target;
}
}
/***********************************************************************
* QueryDosDeviceA (KERNEL32.@)
*
* returns array of strings terminated by \0, terminated by \0
*/
DWORD WINAPI QueryDosDeviceA( LPCSTR devname, LPSTR target, DWORD bufsize )
{
DWORD ret = 0, retW;
WCHAR *devnameW = NULL;
LPWSTR targetW;
if (devname && !(devnameW = FILE_name_AtoW( devname, FALSE ))) return 0;
targetW = HeapAlloc( GetProcessHeap(),0, bufsize * sizeof(WCHAR) );
if (!targetW)
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return 0;
}
retW = QueryDosDeviceW(devnameW, targetW, bufsize);
ret = FILE_name_WtoA( targetW, retW, target, bufsize );
HeapFree(GetProcessHeap(), 0, targetW);
return ret;
}
/***********************************************************************
* GetLogicalDrives (KERNEL32.@)
*/
DWORD WINAPI GetLogicalDrives(void)
{
static const WCHAR dosdevW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\',0};
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nt_name;
DWORD bitmask = 0;
NTSTATUS status;
HANDLE handle;
RtlInitUnicodeString( &nt_name, dosdevW );
nt_name.Length -= sizeof(WCHAR); /* without trailing slash */
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenDirectoryObject( &handle, FILE_LIST_DIRECTORY, &attr );
if (!status)
{
char data[1024];
DIRECTORY_BASIC_INFORMATION *info = (DIRECTORY_BASIC_INFORMATION *)data;
ULONG ctx = 0, len;
while (!NtQueryDirectoryObject( handle, info, sizeof(data), 1, 0, &ctx, &len ))
if(info->ObjectName.Length == 2*sizeof(WCHAR) && info->ObjectName.Buffer[1] == ':')
bitmask |= 1 << (info->ObjectName.Buffer[0] - 'A');
NtClose( handle );
}
return bitmask;
}
/***********************************************************************
* GetLogicalDriveStringsA (KERNEL32.@)
*/
UINT WINAPI GetLogicalDriveStringsA( UINT len, LPSTR buffer )
{
DWORD drives = GetLogicalDrives();
UINT drive, count;
for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
if ((count * 4) + 1 > len) return count * 4 + 1;
for (drive = 0; drive < 26; drive++)
{
if (drives & (1 << drive))
{
*buffer++ = 'A' + drive;
*buffer++ = ':';
*buffer++ = '\\';
*buffer++ = 0;
}
}
*buffer = 0;
return count * 4;
}
/***********************************************************************
* GetLogicalDriveStringsW (KERNEL32.@)
*/
UINT WINAPI GetLogicalDriveStringsW( UINT len, LPWSTR buffer )
{
DWORD drives = GetLogicalDrives();
UINT drive, count;
for (drive = count = 0; drive < 26; drive++) if (drives & (1 << drive)) count++;
if ((count * 4) + 1 > len) return count * 4 + 1;
for (drive = 0; drive < 26; drive++)
{
if (drives & (1 << drive))
{
*buffer++ = 'A' + drive;
*buffer++ = ':';
*buffer++ = '\\';
*buffer++ = 0;
}
}
*buffer = 0;
return count * 4;
}
/***********************************************************************
* GetDriveTypeW (KERNEL32.@)
*
* Returns the type of the disk drive specified. If root is NULL the
* root of the current directory is used.
*
* RETURNS
*
* Type of drive (from Win32 SDK):
*
* DRIVE_UNKNOWN unable to find out anything about the drive
* DRIVE_NO_ROOT_DIR nonexistent root dir
* DRIVE_REMOVABLE the disk can be removed from the machine
* DRIVE_FIXED the disk cannot be removed from the machine
* DRIVE_REMOTE network disk
* DRIVE_CDROM CDROM drive
* DRIVE_RAMDISK virtual disk in RAM
*/
UINT WINAPI GetDriveTypeW(LPCWSTR root) /* [in] String describing drive */
{
FILE_FS_DEVICE_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
UINT ret;
if (!open_device_root( root, &handle ))
{
/* CD ROM devices do not necessarily have a volume, but a drive type */
ret = get_mountmgr_drive_type( root );
if (ret == DRIVE_CDROM || ret == DRIVE_REMOVABLE)
return ret;
return DRIVE_NO_ROOT_DIR;
}
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsDeviceInformation );
NtClose( handle );
if (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(status) );
ret = DRIVE_UNKNOWN;
}
else
{
switch (info.DeviceType)
{
case FILE_DEVICE_CD_ROM_FILE_SYSTEM: ret = DRIVE_CDROM; break;
case FILE_DEVICE_VIRTUAL_DISK: ret = DRIVE_RAMDISK; break;
case FILE_DEVICE_NETWORK_FILE_SYSTEM: ret = DRIVE_REMOTE; break;
case FILE_DEVICE_DISK_FILE_SYSTEM:
if (info.Characteristics & FILE_REMOTE_DEVICE) ret = DRIVE_REMOTE;
else if (info.Characteristics & FILE_REMOVABLE_MEDIA) ret = DRIVE_REMOVABLE;
else if ((ret = get_mountmgr_drive_type( root )) == DRIVE_UNKNOWN) ret = DRIVE_FIXED;
break;
default:
ret = DRIVE_UNKNOWN;
break;
}
}
TRACE( "%s -> %d\n", debugstr_w(root), ret );
return ret;
}
/***********************************************************************
* GetDriveTypeA (KERNEL32.@)
*
* See GetDriveTypeW.
*/
UINT WINAPI GetDriveTypeA( LPCSTR root )
{
WCHAR *rootW = NULL;
if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return DRIVE_NO_ROOT_DIR;
return GetDriveTypeW( rootW );
}
/***********************************************************************
* GetDiskFreeSpaceExW (KERNEL32.@)
*
* This function is used to acquire the size of the available and
* total space on a logical volume.
*
* RETURNS
*
* Zero on failure, nonzero upon success. Use GetLastError to obtain
* detailed error information.
*
*/
BOOL WINAPI GetDiskFreeSpaceExW( LPCWSTR root, PULARGE_INTEGER avail,
PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
{
FILE_FS_SIZE_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
UINT units;
TRACE( "%s,%p,%p,%p\n", debugstr_w(root), avail, total, totalfree );
if (!open_device_root( root, &handle )) return FALSE;
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
NtClose( handle );
if (!set_ntstatus( status )) return FALSE;
units = info.SectorsPerAllocationUnit * info.BytesPerSector;
if (total) total->QuadPart = info.TotalAllocationUnits.QuadPart * units;
if (totalfree) totalfree->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
/* FIXME: this one should take quotas into account */
if (avail) avail->QuadPart = info.AvailableAllocationUnits.QuadPart * units;
return TRUE;
}
/***********************************************************************
* GetDiskFreeSpaceExA (KERNEL32.@)
*
* See GetDiskFreeSpaceExW.
*/
BOOL WINAPI GetDiskFreeSpaceExA( LPCSTR root, PULARGE_INTEGER avail,
PULARGE_INTEGER total, PULARGE_INTEGER totalfree )
{
WCHAR *rootW = NULL;
if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
return GetDiskFreeSpaceExW( rootW, avail, total, totalfree );
}
/***********************************************************************
* GetDiskFreeSpaceW (KERNEL32.@)
*/
BOOL WINAPI GetDiskFreeSpaceW( LPCWSTR root, LPDWORD cluster_sectors,
LPDWORD sector_bytes, LPDWORD free_clusters,
LPDWORD total_clusters )
{
FILE_FS_SIZE_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
UINT units;
TRACE( "%s,%p,%p,%p,%p\n", debugstr_w(root),
cluster_sectors, sector_bytes, free_clusters, total_clusters );
if (!open_device_root( root, &handle )) return FALSE;
status = NtQueryVolumeInformationFile( handle, &io, &info, sizeof(info), FileFsSizeInformation );
NtClose( handle );
if (!set_ntstatus( status )) return FALSE;
units = info.SectorsPerAllocationUnit * info.BytesPerSector;
if( GetVersion() & 0x80000000) { /* win3.x, 9x, ME */
/* cap the size and available at 2GB as per specs */
if (info.TotalAllocationUnits.QuadPart * units > 0x7fffffff) {
info.TotalAllocationUnits.QuadPart = 0x7fffffff / units;
if (info.AvailableAllocationUnits.QuadPart * units > 0x7fffffff)
info.AvailableAllocationUnits.QuadPart = 0x7fffffff / units;
}
/* nr. of clusters is always <= 65335 */
while( info.TotalAllocationUnits.QuadPart > 65535 ) {
info.TotalAllocationUnits.QuadPart /= 2;
info.AvailableAllocationUnits.QuadPart /= 2;
info.SectorsPerAllocationUnit *= 2;
}
}
if (cluster_sectors) *cluster_sectors = info.SectorsPerAllocationUnit;
if (sector_bytes) *sector_bytes = info.BytesPerSector;
if (free_clusters) *free_clusters = info.AvailableAllocationUnits.u.LowPart;
if (total_clusters) *total_clusters = info.TotalAllocationUnits.u.LowPart;
TRACE("%#08x, %#08x, %#08x, %#08x\n", info.SectorsPerAllocationUnit, info.BytesPerSector,
info.AvailableAllocationUnits.u.LowPart, info.TotalAllocationUnits.u.LowPart);
return TRUE;
}
/***********************************************************************
* GetDiskFreeSpaceA (KERNEL32.@)
*/
BOOL WINAPI GetDiskFreeSpaceA( LPCSTR root, LPDWORD cluster_sectors,
LPDWORD sector_bytes, LPDWORD free_clusters,
LPDWORD total_clusters )
{
WCHAR *rootW = NULL;
if (root && !(rootW = FILE_name_AtoW( root, FALSE ))) return FALSE;
return GetDiskFreeSpaceW( rootW, cluster_sectors, sector_bytes, free_clusters, total_clusters );
}
/***********************************************************************
* GetVolumePathNameA (KERNEL32.@)
*/
BOOL WINAPI GetVolumePathNameA(LPCSTR filename, LPSTR volumepathname, DWORD buflen)
{
BOOL ret;
WCHAR *filenameW = NULL, *volumeW = NULL;
TRACE("(%s, %p, %d)\n", debugstr_a(filename), volumepathname, buflen);
if (filename && !(filenameW = FILE_name_AtoW( filename, FALSE )))
return FALSE;
if (volumepathname && !(volumeW = HeapAlloc( GetProcessHeap(), 0, buflen * sizeof(WCHAR) )))
return FALSE;
if ((ret = GetVolumePathNameW( filenameW, volumeW, buflen )))
FILE_name_WtoA( volumeW, -1, volumepathname, buflen );
HeapFree( GetProcessHeap(), 0, volumeW );
return ret;
}
/***********************************************************************
* GetVolumePathNameW (KERNEL32.@)
*
* This routine is intended to find the most basic path on the same filesystem
* for any particular path name. Since we can have very complicated drive/path
* relationships on Unix systems, due to symbolic links, the safest way to
* handle this is to start with the full path and work our way back folder by
* folder unil we find a folder on a different drive (or run out of folders).
*/
BOOL WINAPI GetVolumePathNameW(LPCWSTR filename, LPWSTR volumepathname, DWORD buflen)
{
static const WCHAR deviceprefixW[] = { '\\','?','?','\\',0 };
static const WCHAR ntprefixW[] = { '\\','\\','?','\\',0 };
WCHAR fallbackpathW[] = { 'C',':','\\',0 };
NTSTATUS status = STATUS_SUCCESS;
WCHAR *volumenameW = NULL, *c;
int pos, last_pos, stop_pos;
UNICODE_STRING nt_name;
ANSI_STRING unix_name;
BOOL first_run = TRUE;
dev_t search_dev = 0;
struct stat st;
TRACE("(%s, %p, %d)\n", debugstr_w(filename), volumepathname, buflen);
if (!filename || !volumepathname || !buflen)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
last_pos = pos = strlenW( filename );
/* allocate enough memory for searching the path (need room for a slash and a NULL terminator) */
if (!(volumenameW = HeapAlloc( GetProcessHeap(), 0, (pos + 2) * sizeof(WCHAR) )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return FALSE;
}
strcpyW( volumenameW, filename );
/* Normalize path */
for (c = volumenameW; *c; c++) if (*c == '/') *c = '\\';
stop_pos = 0;
/* stop searching slashes early for NT-type and nearly NT-type paths */
if (strncmpW(ntprefixW, filename, strlenW(ntprefixW)) == 0)
stop_pos = strlenW(ntprefixW)-1;
else if (strncmpW(ntprefixW, filename, 2) == 0)
stop_pos = 2;
do
{
volumenameW[pos+0] = '\\';
volumenameW[pos+1] = '\0';
if (!RtlDosPathNameToNtPathName_U( volumenameW, &nt_name, NULL, NULL ))
goto cleanup;
volumenameW[pos] = '\0';
status = wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE );
RtlFreeUnicodeString( &nt_name );
if (status == STATUS_SUCCESS)
{
if (stat( unix_name.Buffer, &st ) != 0)
{
RtlFreeAnsiString( &unix_name );
status = STATUS_OBJECT_NAME_INVALID;
goto cleanup;
}
if (first_run)
{
first_run = FALSE;
search_dev = st.st_dev;
}
else if (st.st_dev != search_dev)
{
/* folder is on a new filesystem, return the last folder */
RtlFreeAnsiString( &unix_name );
break;
}
}
RtlFreeAnsiString( &unix_name );
last_pos = pos;
c = strrchrW( volumenameW, '\\' );
if (c != NULL)
pos = c-volumenameW;
} while (c != NULL && pos > stop_pos);
if (status != STATUS_SUCCESS)
{
WCHAR cwdW[MAX_PATH];
/* the path was completely invalid */
if (filename[0] == '\\' && strncmpW(deviceprefixW, filename, strlenW(deviceprefixW)) != 0)
{
/* NT-style paths (that are not device paths) fail */
status = STATUS_OBJECT_NAME_INVALID;
goto cleanup;
}
/* DOS-style paths (anything not beginning with a slash) have fallback replies */
if (filename[1] == ':')
{
/* if the path is semi-sane (X:) then use the given drive letter (if it is mounted) */
fallbackpathW[0] = filename[0];
if (!isalphaW(filename[0]) || GetDriveTypeW( fallbackpathW ) == DRIVE_NO_ROOT_DIR)
{
status = STATUS_OBJECT_NAME_NOT_FOUND;
goto cleanup;
}
}
else if (GetCurrentDirectoryW(ARRAY_SIZE(cwdW), cwdW ))
{
/* if the path is completely bogus then revert to the drive of the working directory */
fallbackpathW[0] = cwdW[0];
}
else
{
status = STATUS_OBJECT_NAME_INVALID;
goto cleanup;
}
last_pos = strlenW(fallbackpathW) - 1; /* points to \\ */
filename = fallbackpathW;
status = STATUS_SUCCESS;
}
if (last_pos + 1 <= buflen)
{
memcpy(volumepathname, filename, last_pos * sizeof(WCHAR));
if (last_pos + 2 <= buflen) volumepathname[last_pos++] = '\\';
volumepathname[last_pos] = '\0';
/* DOS-style paths always return upper-case drive letters */
if (volumepathname[1] == ':')
volumepathname[0] = toupperW(volumepathname[0]);
TRACE("Successfully translated path %s to mount-point %s\n",
debugstr_w(filename), debugstr_w(volumepathname));
}
else
status = STATUS_NAME_TOO_LONG;
cleanup:
HeapFree( GetProcessHeap(), 0, volumenameW );
return set_ntstatus( status );
}
/***********************************************************************
* GetVolumePathNamesForVolumeNameA (KERNEL32.@)
*/
BOOL WINAPI GetVolumePathNamesForVolumeNameA(LPCSTR volumename, LPSTR volumepathname, DWORD buflen, PDWORD returnlen)
{
BOOL ret;
WCHAR *volumenameW = NULL, *volumepathnameW;
if (volumename && !(volumenameW = FILE_name_AtoW( volumename, TRUE ))) return FALSE;
if (!(volumepathnameW = HeapAlloc( GetProcessHeap(), 0, buflen * sizeof(WCHAR) )))
{
HeapFree( GetProcessHeap(), 0, volumenameW );
return FALSE;
}
if ((ret = GetVolumePathNamesForVolumeNameW( volumenameW, volumepathnameW, buflen, returnlen )))
{
char *path = volumepathname;
const WCHAR *pathW = volumepathnameW;
while (*pathW)
{
int len = strlenW( pathW ) + 1;
FILE_name_WtoA( pathW, len, path, buflen );
buflen -= len;
pathW += len;
path += len;
}
path[0] = 0;
}
HeapFree( GetProcessHeap(), 0, volumenameW );
HeapFree( GetProcessHeap(), 0, volumepathnameW );
return ret;
}
static MOUNTMGR_MOUNT_POINTS *query_mount_points( HANDLE mgr, MOUNTMGR_MOUNT_POINT *input, DWORD insize )
{
MOUNTMGR_MOUNT_POINTS *output;
DWORD outsize = 1024;
DWORD br;
for (;;)
{
if (!(output = HeapAlloc( GetProcessHeap(), 0, outsize )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return NULL;
}
if (DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, input, insize, output, outsize, &br, NULL )) break;
outsize = output->Size;
HeapFree( GetProcessHeap(), 0, output );
if (GetLastError() != ERROR_MORE_DATA) return NULL;
}
return output;
}
/***********************************************************************
* GetVolumePathNamesForVolumeNameW (KERNEL32.@)
*/
BOOL WINAPI GetVolumePathNamesForVolumeNameW(LPCWSTR volumename, LPWSTR volumepathname, DWORD buflen, PDWORD returnlen)
{
static const WCHAR dosdevicesW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\'};
HANDLE mgr;
DWORD len, size;
MOUNTMGR_MOUNT_POINT *spec;
MOUNTMGR_MOUNT_POINTS *link, *target = NULL;
WCHAR *name, *path;
BOOL ret = FALSE;
UINT i, j;
TRACE("%s, %p, %u, %p\n", debugstr_w(volumename), volumepathname, buflen, returnlen);
if (!volumename || (len = strlenW( volumename )) != 49)
{
SetLastError( ERROR_INVALID_NAME );
return FALSE;
}
mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return FALSE;
size = sizeof(*spec) + sizeof(WCHAR) * (len - 1); /* remove trailing backslash */
if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
spec->SymbolicLinkNameOffset = sizeof(*spec);
spec->SymbolicLinkNameLength = size - sizeof(*spec);
name = (WCHAR *)((char *)spec + spec->SymbolicLinkNameOffset);
memcpy( name, volumename, size - sizeof(*spec) );
name[1] = '?'; /* map \\?\ to \??\ */
target = query_mount_points( mgr, spec, size );
HeapFree( GetProcessHeap(), 0, spec );
if (!target)
{
goto done;
}
if (!target->NumberOfMountPoints)
{
SetLastError( ERROR_FILE_NOT_FOUND );
goto done;
}
len = 0;
path = volumepathname;
for (i = 0; i < target->NumberOfMountPoints; i++)
{
link = NULL;
if (target->MountPoints[i].DeviceNameOffset)
{
const WCHAR *device = (const WCHAR *)((const char *)target + target->MountPoints[i].DeviceNameOffset);
USHORT device_len = target->MountPoints[i].DeviceNameLength;
size = sizeof(*spec) + device_len;
if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
spec->DeviceNameOffset = sizeof(*spec);
spec->DeviceNameLength = device_len;
memcpy( (char *)spec + spec->DeviceNameOffset, device, device_len );
link = query_mount_points( mgr, spec, size );
HeapFree( GetProcessHeap(), 0, spec );
}
else if (target->MountPoints[i].UniqueIdOffset)
{
const WCHAR *id = (const WCHAR *)((const char *)target + target->MountPoints[i].UniqueIdOffset);
USHORT id_len = target->MountPoints[i].UniqueIdLength;
size = sizeof(*spec) + id_len;
if (!(spec = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size ))) goto done;
spec->UniqueIdOffset = sizeof(*spec);
spec->UniqueIdLength = id_len;
memcpy( (char *)spec + spec->UniqueIdOffset, id, id_len );
link = query_mount_points( mgr, spec, size );
HeapFree( GetProcessHeap(), 0, spec );
}
if (!link) continue;
for (j = 0; j < link->NumberOfMountPoints; j++)
{
const WCHAR *linkname;
if (!link->MountPoints[j].SymbolicLinkNameOffset) continue;
linkname = (const WCHAR *)((const char *)link + link->MountPoints[j].SymbolicLinkNameOffset);
if (link->MountPoints[j].SymbolicLinkNameLength == sizeof(dosdevicesW) + 2 * sizeof(WCHAR) &&
!strncmpiW( linkname, dosdevicesW, ARRAY_SIZE( dosdevicesW )))
{
len += 4;
if (volumepathname && len < buflen)
{
path[0] = linkname[ARRAY_SIZE( dosdevicesW )];
path[1] = ':';
path[2] = '\\';
path[3] = 0;
path += 4;
}
}
}
HeapFree( GetProcessHeap(), 0, link );
}
if (buflen <= len) SetLastError( ERROR_MORE_DATA );
else if (volumepathname)
{
volumepathname[len] = 0;
ret = TRUE;
}
if (returnlen) *returnlen = len + 1;
done:
HeapFree( GetProcessHeap(), 0, target );
CloseHandle( mgr );
return ret;
}
/***********************************************************************
* FindFirstVolumeA (KERNEL32.@)
*/
HANDLE WINAPI FindFirstVolumeA(LPSTR volume, DWORD len)
{
WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
HANDLE handle = FindFirstVolumeW( buffer, len );
if (handle != INVALID_HANDLE_VALUE)
{
if (!WideCharToMultiByte( CP_ACP, 0, buffer, -1, volume, len, NULL, NULL ))
{
FindVolumeClose( handle );
handle = INVALID_HANDLE_VALUE;
}
}
HeapFree( GetProcessHeap(), 0, buffer );
return handle;
}
/***********************************************************************
* FindFirstVolumeW (KERNEL32.@)
*/
HANDLE WINAPI FindFirstVolumeW( LPWSTR volume, DWORD len )
{
DWORD size = 1024;
DWORD br;
HANDLE mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, 0, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (mgr == INVALID_HANDLE_VALUE) return INVALID_HANDLE_VALUE;
for (;;)
{
MOUNTMGR_MOUNT_POINT input;
MOUNTMGR_MOUNT_POINTS *output;
if (!(output = HeapAlloc( GetProcessHeap(), 0, size )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
break;
}
memset( &input, 0, sizeof(input) );
if (!DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_POINTS, &input, sizeof(input),
output, size, &br, NULL ))
{
if (GetLastError() != ERROR_MORE_DATA) break;
size = output->Size;
HeapFree( GetProcessHeap(), 0, output );
continue;
}
CloseHandle( mgr );
/* abuse the Size field to store the current index */
output->Size = 0;
if (!FindNextVolumeW( output, volume, len ))
{
HeapFree( GetProcessHeap(), 0, output );
return INVALID_HANDLE_VALUE;
}
return output;
}
CloseHandle( mgr );
return INVALID_HANDLE_VALUE;
}
/***********************************************************************
* FindNextVolumeA (KERNEL32.@)
*/
BOOL WINAPI FindNextVolumeA( HANDLE handle, LPSTR volume, DWORD len )
{
WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
BOOL ret;
if ((ret = FindNextVolumeW( handle, buffer, len )))
{
if (!WideCharToMultiByte( CP_ACP, 0, buffer, -1, volume, len, NULL, NULL )) ret = FALSE;
}
HeapFree( GetProcessHeap(), 0, buffer );
return ret;
}
/***********************************************************************
* FindNextVolumeW (KERNEL32.@)
*/
BOOL WINAPI FindNextVolumeW( HANDLE handle, LPWSTR volume, DWORD len )
{
MOUNTMGR_MOUNT_POINTS *data = handle;
while (data->Size < data->NumberOfMountPoints)
{
static const WCHAR volumeW[] = {'\\','?','?','\\','V','o','l','u','m','e','{',};
WCHAR *link = (WCHAR *)((char *)data + data->MountPoints[data->Size].SymbolicLinkNameOffset);
DWORD size = data->MountPoints[data->Size].SymbolicLinkNameLength;
data->Size++;
/* skip non-volumes */
if (size < sizeof(volumeW) || memcmp( link, volumeW, sizeof(volumeW) )) continue;
if (size + sizeof(WCHAR) >= len * sizeof(WCHAR))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return FALSE;
}
memcpy( volume, link, size );
volume[1] = '\\'; /* map \??\ to \\?\ */
volume[size / sizeof(WCHAR)] = '\\'; /* Windows appends a backslash */
volume[size / sizeof(WCHAR) + 1] = 0;
TRACE( "returning entry %u %s\n", data->Size - 1, debugstr_w(volume) );
return TRUE;
}
SetLastError( ERROR_NO_MORE_FILES );
return FALSE;
}
/***********************************************************************
* FindVolumeClose (KERNEL32.@)
*/
BOOL WINAPI FindVolumeClose(HANDLE handle)
{
return HeapFree( GetProcessHeap(), 0, handle );
}
/***********************************************************************
* FindFirstVolumeMountPointA (KERNEL32.@)
*/
HANDLE WINAPI FindFirstVolumeMountPointA(LPCSTR root, LPSTR mount_point, DWORD len)
{
FIXME("(%s, %p, %d), stub!\n", debugstr_a(root), mount_point, len);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return INVALID_HANDLE_VALUE;
}
/***********************************************************************
* FindFirstVolumeMountPointW (KERNEL32.@)
*/
HANDLE WINAPI FindFirstVolumeMountPointW(LPCWSTR root, LPWSTR mount_point, DWORD len)
{
FIXME("(%s, %p, %d), stub!\n", debugstr_w(root), mount_point, len);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return INVALID_HANDLE_VALUE;
}
/***********************************************************************
* FindVolumeMountPointClose (KERNEL32.@)
*/
BOOL WINAPI FindVolumeMountPointClose(HANDLE h)
{
FIXME("(%p), stub!\n", h);
return FALSE;
}
/***********************************************************************
* DeleteVolumeMountPointA (KERNEL32.@)
*/
BOOL WINAPI DeleteVolumeMountPointA(LPCSTR mountpoint)
{
FIXME("(%s), stub!\n", debugstr_a(mountpoint));
return FALSE;
}
/***********************************************************************
* DeleteVolumeMountPointW (KERNEL32.@)
*/
BOOL WINAPI DeleteVolumeMountPointW(LPCWSTR mountpoint)
{
FIXME("(%s), stub!\n", debugstr_w(mountpoint));
return FALSE;
}
/***********************************************************************
* SetVolumeMountPointA (KERNEL32.@)
*/
BOOL WINAPI SetVolumeMountPointA(LPCSTR path, LPCSTR volume)
{
FIXME("(%s, %s), stub!\n", debugstr_a(path), debugstr_a(volume));
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
/***********************************************************************
* SetVolumeMountPointW (KERNEL32.@)
*/
BOOL WINAPI SetVolumeMountPointW(LPCWSTR path, LPCWSTR volume)
{
FIXME("(%s, %s), stub!\n", debugstr_w(path), debugstr_w(volume));
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
/***********************************************************************
* GetVolumeInformationByHandleW (KERNEL32.@)
*/
BOOL WINAPI GetVolumeInformationByHandleW(HANDLE handle, WCHAR *volnamebuf, DWORD volnamesize, DWORD *volserial, DWORD *maxlength, DWORD *flags, WCHAR *fsnamebuf, DWORD fsnamesize)
{
FIXME("%p %p %d %p %p %p %p %d\n", handle, volnamebuf, volnamesize, volserial, maxlength, flags, fsnamebuf, fsnamesize);
if(volnamebuf && volnamesize)
*volnamebuf = 0;
if(volserial)
*volserial = 0;
if(maxlength)
*maxlength = 0;
if(flags)
*flags = 0;
if(fsnamebuf && fsnamesize)
*fsnamebuf = 0;
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
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