| 1 | /* $Id: RTPathSplitReassemble.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - RTPathSplitReassemble.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2013-2020 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include "internal/iprt.h"
|
|---|
| 32 | #include <iprt/path.h>
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/assert.h>
|
|---|
| 35 | #include <iprt/errcore.h>
|
|---|
| 36 | #include <iprt/string.h>
|
|---|
| 37 |
|
|---|
| 38 |
|
|---|
| 39 | RTDECL(int) RTPathSplitReassemble(PRTPATHSPLIT pSplit, uint32_t fFlags, char *pszDstPath, size_t cbDstPath)
|
|---|
| 40 | {
|
|---|
| 41 | /*
|
|---|
| 42 | * Input validation.
|
|---|
| 43 | */
|
|---|
| 44 | AssertPtrReturn(pSplit, VERR_INVALID_POINTER);
|
|---|
| 45 | AssertReturn(pSplit->cComps > 0, VERR_INVALID_PARAMETER);
|
|---|
| 46 | AssertReturn(RTPATH_STR_F_IS_VALID(fFlags, 0) && !(fFlags & RTPATH_STR_F_MIDDLE), VERR_INVALID_FLAGS);
|
|---|
| 47 | AssertPtrReturn(pszDstPath, VERR_INVALID_POINTER);
|
|---|
| 48 | AssertReturn(cbDstPath > pSplit->cchPath, VERR_BUFFER_OVERFLOW);
|
|---|
| 49 |
|
|---|
| 50 | /*
|
|---|
| 51 | * Figure which slash to use.
|
|---|
| 52 | */
|
|---|
| 53 | char chSlash;
|
|---|
| 54 | switch (fFlags & RTPATH_STR_F_STYLE_MASK)
|
|---|
| 55 | {
|
|---|
| 56 | case RTPATH_STR_F_STYLE_HOST:
|
|---|
| 57 | chSlash = RTPATH_SLASH;
|
|---|
| 58 | break;
|
|---|
| 59 |
|
|---|
| 60 | case RTPATH_STR_F_STYLE_DOS:
|
|---|
| 61 | chSlash = '\\';
|
|---|
| 62 | break;
|
|---|
| 63 |
|
|---|
| 64 | case RTPATH_STR_F_STYLE_UNIX:
|
|---|
| 65 | chSlash = '/';
|
|---|
| 66 | break;
|
|---|
| 67 |
|
|---|
| 68 | default:
|
|---|
| 69 | AssertFailedReturn(VERR_INVALID_FLAGS); /* impossible */
|
|---|
| 70 | }
|
|---|
| 71 |
|
|---|
| 72 | /*
|
|---|
| 73 | * Do the joining.
|
|---|
| 74 | */
|
|---|
| 75 | uint32_t const cchOrgPath = pSplit->cchPath;
|
|---|
| 76 | size_t cchDstPath = 0;
|
|---|
| 77 | uint32_t const cComps = pSplit->cComps;
|
|---|
| 78 | uint32_t idxComp = 0;
|
|---|
| 79 | char *pszDst = pszDstPath;
|
|---|
| 80 | size_t cchComp;
|
|---|
| 81 |
|
|---|
| 82 | if (RTPATH_PROP_HAS_ROOT_SPEC(pSplit->fProps))
|
|---|
| 83 | {
|
|---|
| 84 | cchComp = strlen(pSplit->apszComps[0]);
|
|---|
| 85 | cchDstPath += cchComp;
|
|---|
| 86 | AssertReturn(cchDstPath <= cchOrgPath, VERR_INVALID_PARAMETER);
|
|---|
| 87 | memcpy(pszDst, pSplit->apszComps[0], cchComp);
|
|---|
| 88 |
|
|---|
| 89 | /* fix the slashes */
|
|---|
| 90 | char chOtherSlash = chSlash == '\\' ? '/' : '\\';
|
|---|
| 91 | while (cchComp-- > 0)
|
|---|
| 92 | {
|
|---|
| 93 | if (*pszDst == chOtherSlash)
|
|---|
| 94 | *pszDst = chSlash;
|
|---|
| 95 | pszDst++;
|
|---|
| 96 | }
|
|---|
| 97 | idxComp = 1;
|
|---|
| 98 | }
|
|---|
| 99 |
|
|---|
| 100 | while (idxComp < cComps)
|
|---|
| 101 | {
|
|---|
| 102 | cchComp = strlen(pSplit->apszComps[idxComp]);
|
|---|
| 103 | cchDstPath += cchComp;
|
|---|
| 104 | AssertReturn(cchDstPath <= cchOrgPath, VERR_INVALID_PARAMETER);
|
|---|
| 105 | memcpy(pszDst, pSplit->apszComps[idxComp], cchComp);
|
|---|
| 106 | pszDst += cchComp;
|
|---|
| 107 | idxComp++;
|
|---|
| 108 | if (idxComp != cComps || (pSplit->fProps & RTPATH_PROP_DIR_SLASH))
|
|---|
| 109 | {
|
|---|
| 110 | cchDstPath++;
|
|---|
| 111 | AssertReturn(cchDstPath <= cchOrgPath, VERR_INVALID_PARAMETER);
|
|---|
| 112 | *pszDst++ = chSlash;
|
|---|
| 113 | }
|
|---|
| 114 | }
|
|---|
| 115 |
|
|---|
| 116 | *pszDst = '\0';
|
|---|
| 117 |
|
|---|
| 118 | return VINF_SUCCESS;
|
|---|
| 119 | }
|
|---|
| 120 |
|
|---|
