| 1 | /* $Id: strtok_r.cpp 96407 2022-08-22 17:43:14Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - No-CRT Strings, strtok_r().
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2022 Oracle and/or its affiliates.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox base platform packages, as
|
|---|
| 10 | * available from https://www.virtualbox.org.
|
|---|
| 11 | *
|
|---|
| 12 | * This program is free software; you can redistribute it and/or
|
|---|
| 13 | * modify it under the terms of the GNU General Public License
|
|---|
| 14 | * as published by the Free Software Foundation, in version 3 of the
|
|---|
| 15 | * License.
|
|---|
| 16 | *
|
|---|
| 17 | * This program is distributed in the hope that it will be useful, but
|
|---|
| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 20 | * General Public License for more details.
|
|---|
| 21 | *
|
|---|
| 22 | * You should have received a copy of the GNU General Public License
|
|---|
| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
|---|
| 24 | *
|
|---|
| 25 | * The contents of this file may alternatively be used under the terms
|
|---|
| 26 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
|
|---|
| 28 | * in the VirtualBox distribution, in which case the provisions of the
|
|---|
| 29 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 30 | *
|
|---|
| 31 | * You may elect to license modified versions of this file under the
|
|---|
| 32 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 33 | *
|
|---|
| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
|
|---|
| 35 | */
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | /*********************************************************************************************************************************
|
|---|
| 39 | * Header Files *
|
|---|
| 40 | *********************************************************************************************************************************/
|
|---|
| 41 | #include "internal/iprt.h"
|
|---|
| 42 | #include <iprt/string.h>
|
|---|
| 43 |
|
|---|
| 44 |
|
|---|
| 45 | #undef strtok_r
|
|---|
| 46 | char *RT_NOCRT(strtok_r)(char *psz, const char *pszDelimiters, char **ppszState)
|
|---|
| 47 | {
|
|---|
| 48 | /*
|
|---|
| 49 | * Load state.
|
|---|
| 50 | */
|
|---|
| 51 | if (!psz)
|
|---|
| 52 | {
|
|---|
| 53 | psz = *ppszState;
|
|---|
| 54 | if (!psz)
|
|---|
| 55 | return NULL;
|
|---|
| 56 | }
|
|---|
| 57 |
|
|---|
| 58 | /*
|
|---|
| 59 | * Skip leading delimiters.
|
|---|
| 60 | */
|
|---|
| 61 | size_t const cchDelimiters = strlen(pszDelimiters);
|
|---|
| 62 | for (;;)
|
|---|
| 63 | {
|
|---|
| 64 | char ch = *psz;
|
|---|
| 65 | if (!ch)
|
|---|
| 66 | return *ppszState = NULL;
|
|---|
| 67 | if (memchr(pszDelimiters, ch, cchDelimiters) == NULL)
|
|---|
| 68 | break;
|
|---|
| 69 | psz++;
|
|---|
| 70 | }
|
|---|
| 71 |
|
|---|
| 72 | /*
|
|---|
| 73 | * Find the end of the token.
|
|---|
| 74 | */
|
|---|
| 75 | char * const pszRet = psz;
|
|---|
| 76 | for (;;)
|
|---|
| 77 | {
|
|---|
| 78 | char ch = *++psz;
|
|---|
| 79 | if (memchr(pszDelimiters, ch, cchDelimiters + 1 /* '\0' */) == NULL)
|
|---|
| 80 | { /* semi-likely */ }
|
|---|
| 81 | else
|
|---|
| 82 | {
|
|---|
| 83 | *psz = '\0';
|
|---|
| 84 | *ppszState = ch ? psz + 1 : NULL;
|
|---|
| 85 | return pszRet;
|
|---|
| 86 | }
|
|---|
| 87 | }
|
|---|
| 88 | }
|
|---|
| 89 | RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(strtok_r);
|
|---|
| 90 |
|
|---|
