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Arty's summary:

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drivers/fs/cdfs/fsctl: Allocate wide chars.  CD title was being truncated
drivers/fs/vfat/fsctl: Tolerate a zero bytes-per-sector
Patches by Herve Poussineau

svn path=/trunk/; revision=8761
This commit is contained in:
Art Yerkes 2004-03-16 08:30:28 +00:00
parent 7d726b9519
commit c20093e554
2 changed files with 40 additions and 33 deletions
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4
reactos/drivers/fs/cdfs/fsctl.c
View file

@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: fsctl.c,v 1.18 2004/03/08 08:51:26 ekohl Exp $
/* $Id: fsctl.c,v 1.19 2004/03/16 08:30:28 arty Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -83,7 +83,7 @@ CdfsGetPVDData(PUCHAR Buffer,
*pw++ = (WCHAR)*pc++;
}
*pw = 0;
CdInfo->VolumeLabelLength = i;
CdInfo->VolumeLabelLength = i * sizeof(WCHAR);
CdInfo->VolumeSpaceSize = Pvd->VolumeSpaceSizeL;
CdInfo->RootStart = Pvd->RootDirRecord.ExtentLocationL;

69
reactos/drivers/fs/vfat/fsctl.c
View file

@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: fsctl.c,v 1.27 2004/01/28 20:53:46 ekohl Exp $
/* $Id: fsctl.c,v 1.28 2004/03/16 08:30:28 arty Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -127,40 +127,47 @@ VfatHasFileSystem(PDEVICE_OBJECT DeviceToMount,
Status = VfatReadDisk(DeviceToMount, &Offset, DiskGeometry.BytesPerSector, (PUCHAR) Boot, FALSE);
if (NT_SUCCESS(Status))
{
FatInfo.VolumeID = Boot->VolumeID;
FatInfo.FATStart = Boot->ReservedSectors;
FatInfo.FATCount = Boot->FATCount;
FatInfo.FATSectors = Boot->FATSectors ? Boot->FATSectors : ((struct _BootSector32*) Boot)->FATSectors32;
FatInfo.BytesPerSector = Boot->BytesPerSector;
FatInfo.SectorsPerCluster = Boot->SectorsPerCluster;
FatInfo.BytesPerCluster = FatInfo.BytesPerSector * FatInfo.SectorsPerCluster;
FatInfo.rootDirectorySectors = ((Boot->RootEntries * 32) + Boot->BytesPerSector - 1) / Boot->BytesPerSector;
FatInfo.rootStart = FatInfo.FATStart + FatInfo.FATCount * FatInfo.FATSectors;
FatInfo.dataStart = FatInfo.rootStart + FatInfo.rootDirectorySectors;
FatInfo.Sectors = Sectors = Boot->Sectors ? Boot->Sectors : Boot->SectorsHuge;
Sectors -= Boot->ReservedSectors + FatInfo.FATCount * FatInfo.FATSectors + FatInfo.rootDirectorySectors;
FatInfo.NumberOfClusters = Sectors / Boot->SectorsPerCluster;
if (FatInfo.NumberOfClusters < 4085)
if (Boot->BytesPerSector != 0)
{
DPRINT("FAT12\n");
FatInfo.FatType = FAT12;
}
else if (FatInfo.NumberOfClusters >= 65525)
{
DPRINT("FAT32\n");
FatInfo.FatType = FAT32;
FatInfo.RootCluster = ((struct _BootSector32*) Boot)->RootCluster;
FatInfo.rootStart = FatInfo.dataStart + ((FatInfo.RootCluster - 2) * FatInfo.SectorsPerCluster);
FatInfo.VolumeID = ((struct _BootSector32*) Boot)->VolumeID;
FatInfo.VolumeID = Boot->VolumeID;
FatInfo.FATStart = Boot->ReservedSectors;
FatInfo.FATCount = Boot->FATCount;
FatInfo.FATSectors = Boot->FATSectors ? Boot->FATSectors : ((struct _BootSector32*) Boot)->FATSectors32;
FatInfo.BytesPerSector = Boot->BytesPerSector;
FatInfo.SectorsPerCluster = Boot->SectorsPerCluster;
FatInfo.BytesPerCluster = FatInfo.BytesPerSector * FatInfo.SectorsPerCluster;
FatInfo.rootDirectorySectors = ((Boot->RootEntries * 32) + Boot->BytesPerSector - 1) / Boot->BytesPerSector;
FatInfo.rootStart = FatInfo.FATStart + FatInfo.FATCount * FatInfo.FATSectors;
FatInfo.dataStart = FatInfo.rootStart + FatInfo.rootDirectorySectors;
FatInfo.Sectors = Sectors = Boot->Sectors ? Boot->Sectors : Boot->SectorsHuge;
Sectors -= Boot->ReservedSectors + FatInfo.FATCount * FatInfo.FATSectors + FatInfo.rootDirectorySectors;
FatInfo.NumberOfClusters = Sectors / Boot->SectorsPerCluster;
if (FatInfo.NumberOfClusters < 4085)
{
DPRINT("FAT12\n");
FatInfo.FatType = FAT12;
}
else if (FatInfo.NumberOfClusters >= 65525)
{
DPRINT("FAT32\n");
FatInfo.FatType = FAT32;
FatInfo.RootCluster = ((struct _BootSector32*) Boot)->RootCluster;
FatInfo.rootStart = FatInfo.dataStart + ((FatInfo.RootCluster - 2) * FatInfo.SectorsPerCluster);
FatInfo.VolumeID = ((struct _BootSector32*) Boot)->VolumeID;
}
else
{
DPRINT("FAT16\n");
FatInfo.FatType = FAT16;
}
if (pFatInfo)
{
*pFatInfo = FatInfo;
}
}
else
{
DPRINT("FAT16\n");
FatInfo.FatType = FAT16;
}
if (pFatInfo)
{
*pFatInfo = FatInfo;
Status = STATUS_INSUFFICIENT_RESOURCES;
}
}
ExFreePool(Boot);