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/* $Id: strtok_r.cpp $ */
/** @file
* IPRT - No-CRT Strings, strtok_r().
*/
/*
* Copyright (C) 2022-2023 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/string.h>
#undef strtok_r
char *RT_NOCRT(strtok_r)(char *psz, const char *pszDelimiters, char **ppszState)
{
/*
* Load state.
*/
if (!psz)
{
psz = *ppszState;
if (!psz)
return NULL;
}
/*
* Skip leading delimiters.
*/
size_t const cchDelimiters = strlen(pszDelimiters);
for (;;)
{
char ch = *psz;
if (!ch)
return *ppszState = NULL;
if (memchr(pszDelimiters, ch, cchDelimiters) == NULL)
break;
psz++;
}
/*
* Find the end of the token.
*/
char * const pszRet = psz;
for (;;)
{
char ch = *++psz;
if (memchr(pszDelimiters, ch, cchDelimiters + 1 /* '\0' */) == NULL)
{ /* semi-likely */ }
else
{
*psz = '\0';
*ppszState = ch ? psz + 1 : NULL;
return pszRet;
}
}
}
RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(strtok_r);
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