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/* $Id: RTFileQueryFsSizes-nt.cpp $ */
/** @file
* IPRT - RTFileQueryFsSizes, Native NT.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_FILE
#include "internal-r3-nt.h"
#include <iprt/file.h>
#include <iprt/errcore.h>
RTR3DECL(int) RTFileQueryFsSizes(RTFILE hFile, PRTFOFF pcbTotal, RTFOFF *pcbFree,
uint32_t *pcbBlock, uint32_t *pcbSector)
{
int rc;
/*
* Get the volume information.
*/
FILE_FS_SIZE_INFORMATION FsSizeInfo;
IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
NTSTATUS rcNt = NtQueryVolumeInformationFile((HANDLE)RTFileToNative(hFile), &Ios,
&FsSizeInfo, sizeof(FsSizeInfo), FileFsSizeInformation);
if (NT_SUCCESS(rcNt))
{
/*
* Calculate the return values.
*/
if (pcbTotal)
{
*pcbTotal = FsSizeInfo.TotalAllocationUnits.QuadPart
* FsSizeInfo.SectorsPerAllocationUnit
* FsSizeInfo.BytesPerSector;
if ( *pcbTotal / FsSizeInfo.SectorsPerAllocationUnit / FsSizeInfo.BytesPerSector
!= FsSizeInfo.TotalAllocationUnits.QuadPart)
*pcbTotal = UINT64_MAX;
}
if (pcbFree)
{
*pcbFree = FsSizeInfo.AvailableAllocationUnits.QuadPart
* FsSizeInfo.SectorsPerAllocationUnit
* FsSizeInfo.BytesPerSector;
if ( *pcbFree / FsSizeInfo.SectorsPerAllocationUnit / FsSizeInfo.BytesPerSector
!= FsSizeInfo.AvailableAllocationUnits.QuadPart)
*pcbFree = UINT64_MAX;
}
rc = VINF_SUCCESS;
if (pcbBlock)
{
*pcbBlock = FsSizeInfo.SectorsPerAllocationUnit * FsSizeInfo.BytesPerSector;
if (*pcbBlock / FsSizeInfo.BytesPerSector != FsSizeInfo.SectorsPerAllocationUnit)
rc = VERR_OUT_OF_RANGE;
}
if (pcbSector)
*pcbSector = FsSizeInfo.BytesPerSector;
}
else
rc = RTErrConvertFromNtStatus(rcNt);
return rc;
}
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