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/* $Id: RTPathParsedReassemble.cpp $ */
/** @file
* IPRT - RTPathParsedReassemble.
*/
/*
* Copyright (C) 2013-2019 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/path.h>
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/string.h>
RTDECL(int) RTPathParsedReassemble(const char *pszSrcPath, PRTPATHPARSED pParsed, uint32_t fFlags,
char *pszDstPath, size_t cbDstPath)
{
/*
* Input validation.
*/
AssertPtrReturn(pszSrcPath, VERR_INVALID_POINTER);
AssertPtrReturn(pParsed, VERR_INVALID_POINTER);
AssertReturn(pParsed->cComps > 0, VERR_INVALID_PARAMETER);
AssertReturn(RTPATH_STR_F_IS_VALID(fFlags, 0) && !(fFlags & RTPATH_STR_F_MIDDLE), VERR_INVALID_FLAGS);
AssertPtrReturn(pszDstPath, VERR_INVALID_POINTER);
AssertReturn(cbDstPath > pParsed->cchPath, VERR_BUFFER_OVERFLOW);
/*
* Figure which slash to use.
*/
char chSlash;
switch (fFlags & RTPATH_STR_F_STYLE_MASK)
{
case RTPATH_STR_F_STYLE_HOST:
chSlash = RTPATH_SLASH;
break;
case RTPATH_STR_F_STYLE_DOS:
chSlash = '\\';
break;
case RTPATH_STR_F_STYLE_UNIX:
chSlash = '/';
break;
default:
AssertFailedReturn(VERR_INVALID_FLAGS); /* impossible */
}
/*
* Do the joining.
*/
uint32_t const cchOrgPath = pParsed->cchPath;
uint32_t cchDstPath = 0;
uint32_t const cComps = pParsed->cComps;
uint32_t idxComp = 0;
char *pszDst = pszDstPath;
uint32_t cchComp;
if (RTPATH_PROP_HAS_ROOT_SPEC(pParsed->fProps))
{
cchComp = pParsed->aComps[0].cch;
cchDstPath += cchComp;
AssertReturn(cchDstPath <= cchOrgPath, VERR_INVALID_PARAMETER);
memcpy(pszDst, &pszSrcPath[pParsed->aComps[0].off], cchComp);
/* fix the slashes */
char chOtherSlash = chSlash == '\\' ? '/' : '\\';
while (cchComp-- > 0)
{
if (*pszDst == chOtherSlash)
*pszDst = chSlash;
pszDst++;
}
idxComp = 1;
}
while (idxComp < cComps)
{
cchComp = pParsed->aComps[idxComp].cch;
cchDstPath += cchComp;
AssertReturn(cchDstPath <= cchOrgPath, VERR_INVALID_PARAMETER);
memcpy(pszDst, &pszSrcPath[pParsed->aComps[idxComp].off], cchComp);
pszDst += cchComp;
idxComp++;
if (idxComp != cComps || (pParsed->fProps & RTPATH_PROP_DIR_SLASH))
{
cchDstPath++;
AssertReturn(cchDstPath <= cchOrgPath, VERR_INVALID_PARAMETER);
*pszDst++ = chSlash;
}
}
*pszDst = '\0';
return VINF_SUCCESS;
}
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