| 1 | /* $Id: RTPathSplitA.cpp 69111 2017-10-17 14:26:02Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - RTPathSplitA and RTPathSplitFree.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2013-2017 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include "internal/iprt.h"
|
|---|
| 32 | #include <iprt/path.h>
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/assert.h>
|
|---|
| 35 | #include <iprt/err.h>
|
|---|
| 36 | #include <iprt/mem.h>
|
|---|
| 37 | #include <iprt/string.h>
|
|---|
| 38 |
|
|---|
| 39 |
|
|---|
| 40 |
|
|---|
| 41 | RTDECL(int) RTPathSplitATag(const char *pszPath, PRTPATHSPLIT *ppSplit, uint32_t fFlags, const char *pszTag)
|
|---|
| 42 | {
|
|---|
| 43 | AssertPtrReturn(ppSplit, VERR_INVALID_POINTER);
|
|---|
| 44 | *ppSplit = NULL;
|
|---|
| 45 |
|
|---|
| 46 | /*
|
|---|
| 47 | * Try estimate a reasonable buffer size based on the path length.
|
|---|
| 48 | * Note! No point in trying very hard to get it right.
|
|---|
| 49 | */
|
|---|
| 50 | size_t cbSplit = strlen(pszPath);
|
|---|
| 51 | cbSplit += RT_OFFSETOF(RTPATHSPLIT, apszComps[cbSplit / 8]) + cbSplit / 8 + 8;
|
|---|
| 52 | cbSplit = RT_ALIGN(cbSplit, 64);
|
|---|
| 53 | PRTPATHSPLIT pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
|
|---|
| 54 | if (pSplit == NULL)
|
|---|
| 55 | return VERR_NO_MEMORY;
|
|---|
| 56 |
|
|---|
| 57 | /*
|
|---|
| 58 | * First try. If it fails due to buffer, reallocate the buffer and try again.
|
|---|
| 59 | */
|
|---|
| 60 | int rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
|
|---|
| 61 | if (rc == VERR_BUFFER_OVERFLOW)
|
|---|
| 62 | {
|
|---|
| 63 | cbSplit = RT_ALIGN(pSplit->cbNeeded, 64);
|
|---|
| 64 | RTMemFree(pSplit);
|
|---|
| 65 |
|
|---|
| 66 | pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
|
|---|
| 67 | if (pSplit == NULL)
|
|---|
| 68 | return VERR_NO_MEMORY;
|
|---|
| 69 | rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
|
|---|
| 70 | }
|
|---|
| 71 |
|
|---|
| 72 | /*
|
|---|
| 73 | * Done (one way or the other).
|
|---|
| 74 | */
|
|---|
| 75 | if (RT_SUCCESS(rc))
|
|---|
| 76 | *ppSplit = pSplit;
|
|---|
| 77 | else
|
|---|
| 78 | RTMemFree(pSplit);
|
|---|
| 79 | return rc;
|
|---|
| 80 | }
|
|---|
| 81 |
|
|---|
| 82 |
|
|---|
| 83 | RTDECL(void) RTPathSplitFree(PRTPATHSPLIT pSplit)
|
|---|
| 84 | {
|
|---|
| 85 | if (pSplit)
|
|---|
| 86 | {
|
|---|
| 87 | Assert(pSplit->u16Reserved = UINT16_C(0xbeef));
|
|---|
| 88 | RTMemFree(pSplit);
|
|---|
| 89 | }
|
|---|
| 90 | }
|
|---|
| 91 |
|
|---|
