| 1 | /* $Id: RTFileMove-generic.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTFileMove, Generic.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2019 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #define LOG_GROUP RTLOGGROUP_FILE
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| 32 | #include <iprt/file.h>
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| 33 | #include "internal/iprt.h"
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| 34 |
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| 35 | #include <iprt/path.h>
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| 36 | #include <iprt/err.h>
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| 37 | #include <iprt/assert.h>
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| 38 | #include <iprt/log.h>
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| 39 |
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| 40 |
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| 41 | RTDECL(int) RTFileMove(const char *pszSrc, const char *pszDst, unsigned fMove)
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| 42 | {
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| 43 | /*
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| 44 | * Validate input.
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| 45 | */
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| 46 | AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
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| 47 | AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
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| 48 | AssertMsgReturn(*pszSrc, ("%p\n", pszSrc), VERR_INVALID_PARAMETER);
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| 49 | AssertMsgReturn(*pszDst, ("%p\n", pszDst), VERR_INVALID_PARAMETER);
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| 50 | AssertMsgReturn(!(fMove & ~RTFILEMOVE_FLAGS_REPLACE), ("%#x\n", fMove), VERR_INVALID_PARAMETER);
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| 51 |
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| 52 | /*
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| 53 | * Try RTFileRename first.
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| 54 | */
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| 55 | Assert(RTPATHRENAME_FLAGS_REPLACE == RTFILEMOVE_FLAGS_REPLACE);
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| 56 | unsigned fRename = fMove;
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| 57 | int rc = RTFileRename(pszSrc, pszDst, fRename);
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| 58 | if (rc == VERR_NOT_SAME_DEVICE)
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| 59 | {
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| 60 | const char *pszDelete = NULL;
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| 61 |
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| 62 | /*
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| 63 | * The source and target are not on the same device, darn.
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| 64 | * We'll try open both ends and perform a copy.
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| 65 | */
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| 66 | RTFILE FileSrc;
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| 67 | rc = RTFileOpen(&FileSrc, pszSrc, RTFILE_O_READ | RTFILE_O_DENY_WRITE | RTFILE_O_OPEN);
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| 68 | if (RT_SUCCESS(rc))
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| 69 | {
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| 70 | RTFILE FileDst;
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| 71 | rc = RTFileOpen(&FileDst, pszDst, RTFILE_O_WRITE | RTFILE_O_DENY_ALL | RTFILE_O_CREATE_REPLACE);
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| 72 | if (RT_SUCCESS(rc))
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| 73 | {
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| 74 | rc = RTFileCopyByHandles(FileSrc, FileDst);
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| 75 | if (RT_SUCCESS(rc))
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| 76 | pszDelete = pszSrc;
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| 77 | else
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| 78 | {
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| 79 | pszDelete = pszDst;
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| 80 | Log(("RTFileMove('%s', '%s', %#x): copy failed, rc=%Rrc\n",
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| 81 | pszSrc, pszDst, fMove, rc));
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| 82 | }
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| 83 |
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| 84 | /* try delete without closing, and could perhaps avoid some trouble */
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| 85 | int rc2 = RTFileDelete(pszDelete);
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| 86 | if (RT_SUCCESS(rc2))
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| 87 | pszDelete = NULL;
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| 88 | RTFileClose(FileDst);
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| 89 | }
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| 90 | else
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| 91 | Log(("RTFileMove('%s', '%s', %#x): failed to create destination, rc=%Rrc\n",
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| 92 | pszSrc, pszDst, fMove, rc));
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| 93 | RTFileClose(FileSrc);
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| 94 | }
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| 95 | else
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| 96 | Log(("RTFileMove('%s', '%s', %#x): failed to open source, rc=%Rrc\n",
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| 97 | pszSrc, pszDst, fMove, rc));
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| 98 |
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| 99 | /* if we failed to close it while open, close it now */
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| 100 | if (pszDelete)
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| 101 | {
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| 102 | int rc2 = RTFileDelete(pszDelete);
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| 103 | if (RT_FAILURE(rc2))
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| 104 | Log(("RTFileMove('%s', '%s', %#x): failed to delete '%s', rc2=%Rrc (rc=%Rrc)\n",
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| 105 | pszSrc, pszDst, fMove, pszDelete, rc2, rc));
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| 106 | }
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| 107 | }
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| 108 |
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| 109 | LogFlow(("RTDirRename(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n",
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| 110 | pszSrc, pszSrc, pszDst, pszDst, fMove, rc));
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| 111 | return rc;
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| 112 | }
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| 113 | RT_EXPORT_SYMBOL(RTFileMove);
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| 114 |
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