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/* $Id: RTPathFindCommon.cpp $ */
/** @file
* IPRT - RTPathFindCommon implementations.
*/
/*
* Copyright (C) 2020-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox 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.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "internal/iprt.h"
#include <iprt/path.h>
#include <iprt/alloca.h>
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/mem.h>
#include <iprt/string.h>
#include <iprt/uni.h>
#define RTPATH_TEMPLATE_CPP_H "RTPathFindCommon.cpp.h"
#include "rtpath-expand-template.cpp.h"
RTDECL(size_t) RTPathFindCommonEx(size_t cPaths, const char * const *papszPaths, uint32_t fFlags)
{
/*
* Validate input.
*/
AssertReturn(RTPATH_STR_F_IS_VALID(fFlags, RTPATHFINDCOMMON_F_IGNORE_DOTDOT), 0);
AssertReturn(cPaths > 0, 0);
AssertPtrReturn(papszPaths, 0);
size_t i = cPaths;
while (i-- > 0)
AssertPtrReturn(papszPaths[i], 0);
/*
* Duplicate papszPaths so we can have individual positions in each path.
* Use the stack if we haven't got too many paths.
*/
void *pvFree;
const char **papszCopy;
size_t cbNeeded = cPaths * sizeof(papszCopy[0]);
if (cbNeeded <= _2K)
{
pvFree = NULL;
papszCopy = (const char **)alloca(cbNeeded);
}
else
{
pvFree = RTMemTmpAlloc(cbNeeded);
papszCopy = (const char **)pvFree;
}
AssertReturn(papszCopy, 0);
memcpy(papszCopy, papszPaths, cbNeeded);
/*
* Invoke the worker for the selected path style.
*/
size_t cchRet;
switch (fFlags & RTPATH_STR_F_STYLE_MASK)
{
#if RTPATH_STYLE == RTPATH_STR_F_STYLE_DOS
case RTPATH_STR_F_STYLE_HOST:
#endif
case RTPATH_STR_F_STYLE_DOS:
cchRet= rtPathFindCommonStyleDos(cPaths, papszCopy, fFlags);
break;
#if RTPATH_STYLE != RTPATH_STR_F_STYLE_DOS
case RTPATH_STR_F_STYLE_HOST:
#endif
case RTPATH_STR_F_STYLE_UNIX:
cchRet = rtPathFindCommonStyleUnix(cPaths, papszCopy, fFlags);
break;
default:
AssertFailedStmt(cchRet = 0); /* impossible */
}
/*
* Clean up and return.
*/
if (pvFree)
RTMemTmpFree(pvFree);
return cchRet;
}
RT_EXPORT_SYMBOL(RTPathFindCommonEx);
RTDECL(size_t) RTPathFindCommon(size_t cPaths, const char * const *papszPaths)
{
return RTPathFindCommonEx(cPaths, papszPaths, RTPATH_STR_F_STYLE_HOST);
}
RT_EXPORT_SYMBOL(RTPathFindCommon);
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