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/* $Id: RTPathSplitA.cpp $ */
/** @file
* IPRT - RTPathSplitA and RTPathSplitFree.
*/
/*
* 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/mem.h>
#include <iprt/string.h>
RTDECL(int) RTPathSplitATag(const char *pszPath, PRTPATHSPLIT *ppSplit, uint32_t fFlags, const char *pszTag)
{
AssertPtrReturn(ppSplit, VERR_INVALID_POINTER);
*ppSplit = NULL;
/*
* Try estimate a reasonable buffer size based on the path length.
* Note! No point in trying very hard to get it right.
*/
size_t cbSplit = strlen(pszPath);
cbSplit += RT_UOFFSETOF_DYN(RTPATHSPLIT, apszComps[cbSplit / 8]) + cbSplit / 8 + 8;
cbSplit = RT_ALIGN(cbSplit, 64);
PRTPATHSPLIT pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
if (pSplit == NULL)
return VERR_NO_MEMORY;
/*
* First try. If it fails due to buffer, reallocate the buffer and try again.
*/
int rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
if (rc == VERR_BUFFER_OVERFLOW)
{
cbSplit = RT_ALIGN(pSplit->cbNeeded, 64);
RTMemFree(pSplit);
pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
if (pSplit == NULL)
return VERR_NO_MEMORY;
rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
}
/*
* Done (one way or the other).
*/
if (RT_SUCCESS(rc))
*ppSplit = pSplit;
else
RTMemFree(pSplit);
return rc;
}
RTDECL(void) RTPathSplitFree(PRTPATHSPLIT pSplit)
{
if (pSplit)
{
Assert(pSplit->u16Reserved = UINT16_C(0xbeef));
RTMemFree(pSplit);
}
}
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