1 files changed, 114 insertions, 0 deletions
diff --git a/src/VBox/Runtime/generic/RTFileMove-generic.cpp b/src/VBox/Runtime/generic/RTFileMove-generic.cpp
new file mode 100644
index 00000000..bc1a79af
--- /dev/null
+++ b/src/VBox/Runtime/generic/RTFileMove-generic.cpp
@@ -0,0 +1,114 @@
+/* $Id: RTFileMove-generic.cpp $ */
+/** @file
+ * IPRT - RTFileMove, Generic.
+ */
+
+/*
+ * Copyright (C) 2006-2020 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 <iprt/file.h>
+#include "internal/iprt.h"
+
+#include <iprt/path.h>
+#include <iprt/err.h>
+#include <iprt/assert.h>
+#include <iprt/log.h>
+
+
+RTDECL(int) RTFileMove(const char *pszSrc, const char *pszDst, unsigned fMove)
+{
+    /*
+     * Validate input.
+     */
+    AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
+    AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
+    AssertMsgReturn(*pszSrc, ("%p\n", pszSrc), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(*pszDst, ("%p\n", pszDst), VERR_INVALID_PARAMETER);
+    AssertMsgReturn(!(fMove & ~RTFILEMOVE_FLAGS_REPLACE), ("%#x\n", fMove), VERR_INVALID_PARAMETER);
+
+    /*
+     * Try RTFileRename first.
+     */
+    Assert(RTPATHRENAME_FLAGS_REPLACE == RTFILEMOVE_FLAGS_REPLACE);
+    unsigned fRename = fMove;
+    int rc = RTFileRename(pszSrc, pszDst, fRename);
+    if (rc == VERR_NOT_SAME_DEVICE)
+    {
+        const char *pszDelete = NULL;
+
+        /*
+         * The source and target are not on the same device, darn.
+         * We'll try open both ends and perform a copy.
+         */
+        RTFILE FileSrc;
+        rc = RTFileOpen(&FileSrc, pszSrc, RTFILE_O_READ | RTFILE_O_DENY_WRITE | RTFILE_O_OPEN);
+        if (RT_SUCCESS(rc))
+        {
+            RTFILE FileDst;
+            rc = RTFileOpen(&FileDst, pszDst, RTFILE_O_WRITE | RTFILE_O_DENY_ALL | RTFILE_O_CREATE_REPLACE);
+            if (RT_SUCCESS(rc))
+            {
+                rc = RTFileCopyByHandles(FileSrc, FileDst);
+                if (RT_SUCCESS(rc))
+                    pszDelete = pszSrc;
+                else
+                {
+                    pszDelete = pszDst;
+                    Log(("RTFileMove('%s', '%s', %#x): copy failed, rc=%Rrc\n",
+                         pszSrc, pszDst, fMove, rc));
+                }
+
+                /* try delete without closing, and could perhaps avoid some trouble */
+                int rc2 = RTFileDelete(pszDelete);
+                if (RT_SUCCESS(rc2))
+                    pszDelete = NULL;
+                RTFileClose(FileDst);
+            }
+            else
+                Log(("RTFileMove('%s', '%s', %#x): failed to create destination, rc=%Rrc\n",
+                     pszSrc, pszDst, fMove, rc));
+            RTFileClose(FileSrc);
+        }
+        else
+            Log(("RTFileMove('%s', '%s', %#x): failed to open source, rc=%Rrc\n",
+                 pszSrc, pszDst, fMove, rc));
+
+        /* if we failed to close it while open, close it now */
+        if (pszDelete)
+        {
+            int rc2 = RTFileDelete(pszDelete);
+            if (RT_FAILURE(rc2))
+                Log(("RTFileMove('%s', '%s', %#x): failed to delete '%s', rc2=%Rrc (rc=%Rrc)\n",
+                     pszSrc, pszDst, fMove, pszDelete, rc2, rc));
+        }
+    }
+
+    LogFlow(("RTDirRename(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n",
+             pszSrc, pszSrc, pszDst, pszDst, fMove, rc));
+    return rc;
+}
+RT_EXPORT_SYMBOL(RTFileMove);
+