Index: trunk/src/VBox/Runtime/generic/RTFileCopyByHandlesEx-generic.cpp
===================================================================
--- trunk/src/VBox/Runtime/generic/RTFileCopyByHandlesEx-generic.cpp	(revision 77825)
+++ trunk/src/VBox/Runtime/generic/RTFileCopyByHandlesEx-generic.cpp	(revision 77825)
@@ -0,0 +1,155 @@
+/* $Id$ */
+/** @file
+ * IPRT - RTFileCopyByHandlesEx, generic implementation.
+ */
+
+/*
+ * 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                                                                                                                 *
+*********************************************************************************************************************************/
+#include "internal/iprt.h"
+#include <iprt/file.h>
+
+#include <iprt/alloca.h>
+#include <iprt/assert.h>
+#include <iprt/mem.h>
+#include <iprt/errcore.h>
+
+
+RTDECL(int) RTFileCopyByHandlesEx(RTFILE FileSrc, RTFILE FileDst, PFNRTPROGRESS pfnProgress, void *pvUser)
+{
+    /*
+     * Validate input.
+     */
+    AssertMsgReturn(RTFileIsValid(FileSrc), ("FileSrc=%RTfile\n", FileSrc), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(RTFileIsValid(FileDst), ("FileDst=%RTfile\n", FileDst), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(!pfnProgress || VALID_PTR(pfnProgress), ("pfnProgress=%p\n", pfnProgress), VERR_INVALID_PARAMETER);
+
+    /*
+     * Save file offset.
+     */
+    RTFOFF offSrcSaved;
+    int rc = RTFileSeek(FileSrc, 0, RTFILE_SEEK_CURRENT, (uint64_t *)&offSrcSaved);
+    if (RT_FAILURE(rc))
+        return rc;
+
+    /*
+     * Get the file size.
+     */
+    RTFOFF cbSrc;
+    rc = RTFileSeek(FileSrc, 0, RTFILE_SEEK_END, (uint64_t *)&cbSrc);
+    if (RT_FAILURE(rc))
+        return rc;
+
+    /*
+     * Allocate buffer.
+     */
+    size_t      cbBuf;
+    uint8_t    *pbBufFree = NULL;
+    uint8_t    *pbBuf;
+    if (cbSrc < _512K)
+    {
+        cbBuf = 8*_1K;
+        pbBuf = (uint8_t *)alloca(cbBuf);
+    }
+    else
+    {
+        cbBuf = _128K;
+        pbBuf = pbBufFree = (uint8_t *)RTMemTmpAlloc(cbBuf);
+    }
+    if (pbBuf)
+    {
+        /*
+         * Seek to the start of each file
+         * and set the size of the destination file.
+         */
+        rc = RTFileSeek(FileSrc, 0, RTFILE_SEEK_BEGIN, NULL);
+        if (RT_SUCCESS(rc))
+        {
+            rc = RTFileSeek(FileDst, 0, RTFILE_SEEK_BEGIN, NULL);
+            if (RT_SUCCESS(rc))
+                rc = RTFileSetSize(FileDst, cbSrc);
+            if (RT_SUCCESS(rc) && pfnProgress)
+                rc = pfnProgress(0, pvUser);
+            if (RT_SUCCESS(rc))
+            {
+                /*
+                 * Copy loop.
+                 */
+                unsigned    uPercentage = 0;
+                RTFOFF      off = 0;
+                RTFOFF      cbPercent = cbSrc / 100;
+                RTFOFF      offNextPercent = cbPercent;
+                while (off < cbSrc)
+                {
+                    /* copy block */
+                    RTFOFF cbLeft = cbSrc - off;
+                    size_t cbBlock = cbLeft >= (RTFOFF)cbBuf ? cbBuf : (size_t)cbLeft;
+                    rc = RTFileRead(FileSrc, pbBuf, cbBlock, NULL);
+                    if (RT_FAILURE(rc))
+                        break;
+                    rc = RTFileWrite(FileDst, pbBuf, cbBlock, NULL);
+                    if (RT_FAILURE(rc))
+                        break;
+
+                    /* advance */
+                    off += cbBlock;
+                    if (pfnProgress && offNextPercent < off && uPercentage < 100)
+                    {
+                        do
+                        {
+                            uPercentage++;
+                            offNextPercent += cbPercent;
+                        } while (offNextPercent < off && uPercentage < 100);
+                        rc = pfnProgress(uPercentage, pvUser);
+                        if (RT_FAILURE(rc))
+                            break;
+                    }
+                }
+
+#if 0
+                /*
+                 * Copy OS specific data (EAs and stuff).
+                 */
+                rtFileCopyOSStuff(FileSrc, FileDst);
+#endif
+
+                /* 100% */
+                if (pfnProgress && uPercentage < 100 && RT_SUCCESS(rc))
+                    rc = pfnProgress(100, pvUser);
+            }
+        }
+        RTMemTmpFree(pbBufFree);
+    }
+    else
+        rc = VERR_NO_MEMORY;
+
+    /*
+     * Restore source position.
+     */
+    RTFileSeek(FileSrc, offSrcSaved, RTFILE_SEEK_BEGIN, NULL);
+
+    return rc;
+}
+
Index: trunk/src/VBox/Runtime/generic/RTFileCopyEx-generic.cpp
===================================================================
--- trunk/src/VBox/Runtime/generic/RTFileCopyEx-generic.cpp	(revision 77825)
+++ trunk/src/VBox/Runtime/generic/RTFileCopyEx-generic.cpp	(revision 77825)
@@ -0,0 +1,87 @@
+/* $Id$ */
+/** @file
+ * IPRT - RTFileCopyEx, generic implementation.
+ */
+
+/*
+ * 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                                                                                                                 *
+*********************************************************************************************************************************/
+#include "internal/iprt.h"
+#include <iprt/file.h>
+
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+
+
+RTDECL(int) RTFileCopyEx(const char *pszSrc, const char *pszDst, uint32_t fFlags, PFNRTPROGRESS pfnProgress, void *pvUser)
+{
+    /*
+     * Validate input.
+     */
+    AssertMsgReturn(VALID_PTR(pszSrc), ("pszSrc=%p\n", pszSrc), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(*pszSrc, ("pszSrc=%p\n", pszSrc), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(VALID_PTR(pszDst), ("pszDst=%p\n", pszDst), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(*pszDst, ("pszDst=%p\n", pszDst), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(!pfnProgress || VALID_PTR(pfnProgress), ("pfnProgress=%p\n", pfnProgress), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(!(fFlags & ~RTFILECOPY_FLAGS_MASK), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
+
+    /*
+     * Open the files.
+     */
+    RTFILE FileSrc;
+    int rc = RTFileOpen(&FileSrc, pszSrc,
+                        RTFILE_O_READ | RTFILE_O_OPEN
+                        | (fFlags & RTFILECOPY_FLAGS_NO_SRC_DENY_WRITE ? RTFILE_O_DENY_NONE : RTFILE_O_DENY_WRITE));
+    if (RT_SUCCESS(rc))
+    {
+        RTFILE FileDst;
+        rc = RTFileOpen(&FileDst, pszDst,
+                        RTFILE_O_WRITE | RTFILE_O_CREATE
+                        | (fFlags & RTFILECOPY_FLAGS_NO_DST_DENY_WRITE ? RTFILE_O_DENY_NONE : RTFILE_O_DENY_WRITE));
+        if (RT_SUCCESS(rc))
+        {
+            /*
+             * Call the ByHandles version and let it do the job.
+             */
+            rc = RTFileCopyByHandlesEx(FileSrc, FileDst, pfnProgress, pvUser);
+
+            /*
+             * Close the files regardless of the result.
+             * Don't bother cleaning up or anything like that.
+             */
+            int rc2 = RTFileClose(FileDst);
+            AssertRC(rc2);
+            if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
+                rc = rc2;
+        }
+
+        int rc2 = RTFileClose(FileSrc);
+        AssertRC(rc2);
+        if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
+            rc = rc2;
+    }
+    return rc;
+}
+
