| 1 | /* $Id: RTNtPathFindPossible8dot3Name.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Native NT, RTNtPathFindPossible8dot3Name.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox base platform packages, as
|
|---|
| 10 | * available from https://www.virtualbox.org.
|
|---|
| 11 | *
|
|---|
| 12 | * This program is free software; you can redistribute it and/or
|
|---|
| 13 | * modify it under the terms of the GNU General Public License
|
|---|
| 14 | * as published by the Free Software Foundation, in version 3 of the
|
|---|
| 15 | * License.
|
|---|
| 16 | *
|
|---|
| 17 | * This program is distributed in the hope that it will be useful, but
|
|---|
| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 20 | * General Public License for more details.
|
|---|
| 21 | *
|
|---|
| 22 | * You should have received a copy of the GNU General Public License
|
|---|
| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
|---|
| 24 | *
|
|---|
| 25 | * The contents of this file may alternatively be used under the terms
|
|---|
| 26 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
|
|---|
| 28 | * in the VirtualBox distribution, in which case the provisions of the
|
|---|
| 29 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 30 | *
|
|---|
| 31 | * You may elect to license modified versions of this file under the
|
|---|
| 32 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 33 | *
|
|---|
| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
|
|---|
| 35 | */
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | /*********************************************************************************************************************************
|
|---|
| 39 | * Header Files *
|
|---|
| 40 | *********************************************************************************************************************************/
|
|---|
| 41 | #define LOG_GROUP RTLOGGROUP_FS
|
|---|
| 42 | #ifdef IN_SUP_HARDENED_R3
|
|---|
| 43 | # include <iprt/nt/nt-and-windows.h>
|
|---|
| 44 | #else
|
|---|
| 45 | # include <iprt/nt/nt.h>
|
|---|
| 46 | #endif
|
|---|
| 47 |
|
|---|
| 48 |
|
|---|
| 49 |
|
|---|
| 50 | /**
|
|---|
| 51 | * Checks whether the path could be containing alternative 8.3 names generated
|
|---|
| 52 | * by NTFS, FAT, or other similar file systems.
|
|---|
| 53 | *
|
|---|
| 54 | * @returns Pointer to the first component that might be an 8.3 name, NULL if
|
|---|
| 55 | * not 8.3 path.
|
|---|
| 56 | * @param pwszPath The path to check.
|
|---|
| 57 | *
|
|---|
| 58 | * @remarks This is making bad ASSUMPTION wrt to the naming scheme of 8.3 names,
|
|---|
| 59 | * however, non-tilde 8.3 aliases are probably rare enough to not be
|
|---|
| 60 | * worth all the extra code necessary to open each path component and
|
|---|
| 61 | * check if we've got the short name or not.
|
|---|
| 62 | */
|
|---|
| 63 | RTDECL(PRTUTF16) RTNtPathFindPossible8dot3Name(PCRTUTF16 pwszPath)
|
|---|
| 64 | {
|
|---|
| 65 | PCRTUTF16 pwszName = pwszPath;
|
|---|
| 66 | for (;;)
|
|---|
| 67 | {
|
|---|
| 68 | RTUTF16 wc = *pwszPath++;
|
|---|
| 69 | if (wc == '~')
|
|---|
| 70 | {
|
|---|
| 71 | /* Could check more here before jumping to conclusions... */
|
|---|
| 72 | if (pwszPath - pwszName <= 8+1+3)
|
|---|
| 73 | return (PRTUTF16)pwszName;
|
|---|
| 74 | }
|
|---|
| 75 | else if (wc == '\\' || wc == '/' || wc == ':')
|
|---|
| 76 | pwszName = pwszPath;
|
|---|
| 77 | else if (wc == 0)
|
|---|
| 78 | break;
|
|---|
| 79 | }
|
|---|
| 80 | return NULL;
|
|---|
| 81 | }
|
|---|
| 82 |
|
|---|
