1 files changed, 92 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..8f7d9141
--- /dev/null
+++ b/src/VBox/Runtime/r3/nt/RTFileQueryFsSizes-nt.cpp
@@ -0,0 +1,92 @@
+/* $Id: RTFileQueryFsSizes-nt.cpp $ */
+/** @file
+ * IPRT - RTFileQueryFsSizes, Native NT.
+ */
+
+/*
+ * Copyright (C) 2006-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+
+/*********************************************************************************************************************************
+*   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;
+}
+