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- Added a check for valid result pointers in GetDiskFreeSpaceExW.

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- Changed from CreateFileW to NtCreateFile in GetVolumeInformationW.
  CreateFileW doesn't allow to open directories.

svn path=/trunk/; revision=3367
This commit is contained in:
Hartmut Birr 2002-08-18 21:07:59 +00:00
parent 0127899031
commit 92de298b36
1 changed files with 48 additions and 15 deletions
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45
reactos/lib/kernel32/file/volume.c
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@ -1,4 +1,4 @@
/* $Id: volume.c,v 1.22 2002/04/26 13:07:33 ekohl Exp $
/* $Id: volume.c,v 1.23 2002/08/18 21:07:59 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
@ -303,11 +303,14 @@ GetDiskFreeSpaceExW(
FileFsSize.BytesPerSector * FileFsSize.SectorsPerAllocationUnit;
// FIXME: Use quota information
if (lpFreeBytesAvailableToCaller)
lpFreeBytesAvailableToCaller->QuadPart =
BytesPerCluster.QuadPart * FileFsSize.AvailableAllocationUnits.QuadPart;
if (lpTotalNumberOfBytes)
lpTotalNumberOfBytes->QuadPart =
BytesPerCluster.QuadPart * FileFsSize.TotalAllocationUnits.QuadPart;
if (lpTotalNumberOfFreeBytes)
lpTotalNumberOfFreeBytes->QuadPart =
BytesPerCluster.QuadPart * FileFsSize.AvailableAllocationUnits.QuadPart;
@ -502,6 +505,8 @@ GetVolumeInformationW(
PFILE_FS_VOLUME_INFORMATION FileFsVolume;
PFILE_FS_ATTRIBUTE_INFORMATION FileFsAttribute;
IO_STATUS_BLOCK IoStatusBlock;
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING NtPathU;
USHORT Buffer[FS_VOLUME_BUFFER_SIZE];
USHORT Buffer2[FS_ATTRIBUTE_BUFFER_SIZE];
@ -514,14 +519,42 @@ GetVolumeInformationW(
DPRINT("FileFsVolume %p\n", FileFsVolume);
DPRINT("FileFsAttribute %p\n", FileFsAttribute);
hFile = CreateFileW(lpRootPathName,
FILE_READ_ATTRIBUTES,
FILE_SHARE_READ|FILE_SHARE_WRITE,
if (!RtlDosPathNameToNtPathName_U ((LPWSTR)lpRootPathName,
&NtPathU,
NULL,
NULL))
{
DPRINT("Invalid path\n");
SetLastError(ERROR_BAD_PATHNAME);
return FALSE;
}
InitializeObjectAttributes(&ObjectAttributes,
&NtPathU,
FILE_READ_ATTRIBUTES,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
errCode = NtCreateFile (&hFile,
FILE_GENERIC_READ,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_OPEN,
0,
NULL,
0);
RtlFreeUnicodeString(&NtPathU);
if (!NT_SUCCESS(errCode))
{
SetLastErrorByStatus (errCode);
return FALSE;
}
DPRINT("hFile: %x\n", hFile);
errCode = NtQueryVolumeInformationFile(hFile,
&IoStatusBlock,