| 1 | /* $Id: RTPathStripFilename.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTPathStripFilename
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 |
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| 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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| 41 | #include "internal/iprt.h"
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| 42 | #include <iprt/path.h>
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| 43 | #include <iprt/ctype.h>
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| 44 |
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| 45 |
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| 46 | /**
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| 47 | * Strips the filename from a path. Truncates the given string in-place by overwriting the
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| 48 | * last path separator character with a null byte in a platform-neutral way.
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| 49 | *
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| 50 | * @param pszPath Path from which filename should be extracted, will be truncated.
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| 51 | * If the string contains no path separator, it will be changed to a "." string.
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| 52 | */
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| 53 | RTDECL(void) RTPathStripFilename(char *pszPath)
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| 54 | {
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| 55 | char *psz = pszPath;
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| 56 | char *pszLastSep = NULL;
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| 57 |
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| 58 |
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| 59 | for (;; psz++)
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| 60 | {
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| 61 | switch (*psz)
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| 62 | {
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| 63 | /* handle separators. */
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| 64 | #if defined(RT_OS_WINDOWS) || defined(RT_OS_OS2)
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| 65 | case ':':
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| 66 | pszLastSep = psz + 1;
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| 67 | if (RTPATH_IS_SLASH(psz[1]))
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| 68 | pszPath = psz + 1;
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| 69 | else
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| 70 | pszPath = psz;
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| 71 | break;
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| 72 |
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| 73 | case '\\':
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| 74 | #endif
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| 75 | case '/':
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| 76 | pszLastSep = psz;
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| 77 | break;
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| 78 |
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| 79 | /* the end */
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| 80 | case '\0':
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| 81 | if (!pszLastSep)
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| 82 | {
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| 83 | /* no directory component */
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| 84 | pszPath[0] = '.';
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| 85 | pszPath[1] = '\0';
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| 86 | }
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| 87 | else if (pszLastSep == pszPath)
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| 88 | {
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| 89 | /* only root. */
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| 90 | pszLastSep[1] = '\0';
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| 91 | }
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| 92 | else
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| 93 | pszLastSep[0] = '\0';
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| 94 | return;
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| 95 | }
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| 96 | }
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| 97 | /* will never get here */
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| 98 | }
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| 99 |
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