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Diffstat (limited to '')
-rw-r--r-- | src/VBox/Runtime/r3/nt/RTFileQueryFsSizes-nt.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/nt/RTFileQueryFsSizes-nt.cpp b/src/VBox/Runtime/r3/nt/RTFileQueryFsSizes-nt.cpp new file mode 100644 index 00000000..63a88211 --- /dev/null +++ b/src/VBox/Runtime/r3/nt/RTFileQueryFsSizes-nt.cpp @@ -0,0 +1,102 @@ +/* $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; +} + |