1 | /* $Id: RTPathJoinA.cpp 57358 2015-08-14 15:16:38Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - RTPathJoinA.
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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 "internal/iprt.h"
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32 | #include <iprt/path.h>
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33 | #include <iprt/assert.h>
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34 | #include <iprt/err.h>
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35 | #include <iprt/string.h>
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36 |
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37 |
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38 |
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39 |
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40 | RTDECL(char *) RTPathJoinA(const char *pszPathSrc, const char *pszAppend)
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41 | {
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42 | AssertPtr(pszAppend);
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43 | AssertPtr(pszPathSrc);
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44 |
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45 | /*
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46 | * The easy way: Allocate a buffer and call RTPathAppend till it succeeds.
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47 | */
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48 | size_t cchPathSrc = strlen(pszPathSrc);
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49 | size_t cchAppend = strlen(pszAppend);
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50 | size_t cbPathDst = cchPathSrc + cchAppend + 4;
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51 | char *pszPathDst = RTStrAlloc(cbPathDst);
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52 | if (pszPathDst)
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53 | {
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54 | memcpy(pszPathDst, pszPathSrc, cchPathSrc + 1);
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55 | int rc = RTPathAppend(pszPathDst, cbPathDst, pszAppend);
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56 | if (RT_FAILURE(rc))
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57 | {
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58 | /* This shouldn't happen, but if it does try again with a larger buffer... */
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59 | AssertRC(rc);
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60 |
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61 | rc = RTStrRealloc(&pszPathDst, cbPathDst * 2);
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62 | if (RT_SUCCESS(rc))
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63 | rc = RTPathAppend(pszPathDst, cbPathDst, pszAppend);
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64 | if (RT_FAILURE(rc))
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65 | {
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66 | RTStrFree(pszPathDst);
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67 | pszPathDst = NULL;
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68 | }
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69 | }
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70 | }
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71 | return pszPathDst;
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72 | }
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73 |
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