| 1 | /* $Id: strtok_r.cpp 96045 2022-08-05 00:26:04Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - No-CRT Strings, strtok_r().
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include "internal/iprt.h"
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| 32 | #include <iprt/string.h>
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| 33 |
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| 34 |
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| 35 | #undef strtok_r
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| 36 | char *RT_NOCRT(strtok_r)(char *psz, const char *pszDelimiters, char **ppszState)
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| 37 | {
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| 38 | /*
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| 39 | * Load state.
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| 40 | */
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| 41 | if (!psz)
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| 42 | {
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| 43 | psz = *ppszState;
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| 44 | if (!psz)
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| 45 | return NULL;
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| 46 | }
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| 47 |
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| 48 | /*
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| 49 | * Skip leading delimiters.
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| 50 | */
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| 51 | size_t const cchDelimiters = strlen(pszDelimiters);
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| 52 | for (;;)
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| 53 | {
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| 54 | char ch = *psz;
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| 55 | if (!ch)
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| 56 | return *ppszState = NULL;
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| 57 | if (memchr(pszDelimiters, ch, cchDelimiters) == NULL)
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| 58 | break;
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| 59 | psz++;
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| 60 | }
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| 61 |
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| 62 | /*
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| 63 | * Find the end of the token.
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| 64 | */
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| 65 | char * const pszRet = psz;
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| 66 | for (;;)
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| 67 | {
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| 68 | char ch = *++psz;
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| 69 | if (memchr(pszDelimiters, ch, cchDelimiters + 1 /* '\0' */) == NULL)
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| 70 | { /* semi-likely */ }
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| 71 | else
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| 72 | {
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| 73 | *psz = '\0';
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| 74 | *ppszState = ch ? psz + 1 : NULL;
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| 75 | return pszRet;
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| 76 | }
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| 77 | }
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| 78 | }
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| 79 | RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(strtok_r);
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| 80 |
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