1 | /* $Id: RTStrCopyPEx.cpp 57358 2015-08-14 15:16:38Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - RTStrCopyPEx.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2010-2015 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 <iprt/string.h>
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32 | #include "internal/iprt.h"
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33 |
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34 |
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35 | RTDECL(int) RTStrCopyPEx(char **ppszDst, size_t *pcbDst, const char *pszSrc, size_t cchMaxSrc)
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36 | {
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37 | const char *pszSrcEol = RTStrEnd(pszSrc, cchMaxSrc);
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38 | size_t cchSrc = pszSrcEol ? (size_t)(pszSrcEol - pszSrc) : cchMaxSrc;
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39 | size_t const cbDst = *pcbDst;
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40 | char *pszDst = *ppszDst;
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41 | if (RT_LIKELY(cchSrc < cbDst))
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42 | {
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43 | memcpy(pszDst, pszSrc, cchSrc);
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44 | *ppszDst = pszDst += cchSrc;
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45 | *pszDst = '\0';
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46 | *pcbDst -= cchSrc;
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47 | return VINF_SUCCESS;
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48 | }
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49 |
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50 | if (cbDst != 0)
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51 | {
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52 | memcpy(*ppszDst, pszSrc, cbDst - 1);
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53 | *ppszDst = pszDst += cbDst - 1;
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54 | *pszDst = '\0';
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55 | *pcbDst = 1;
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56 | }
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57 | return VERR_BUFFER_OVERFLOW;
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58 | }
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59 | RT_EXPORT_SYMBOL(RTStrCopyPEx);
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60 |
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