| 1 | /* $Id: rtPathVolumeSpecLen.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - rtPathVolumeSpecLen
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2022 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/string.h>
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| 33 | #include <iprt/ctype.h>
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| 34 | #include "internal/path.h"
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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 | * Returns the length of the volume name specifier of the given path.
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| 40 | * If no such specifier zero is returned.
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| 41 | */
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| 42 | DECLHIDDEN(size_t) rtPathVolumeSpecLen(const char *pszPath)
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| 43 | {
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| 44 | #if defined (RT_OS_OS2) || defined (RT_OS_WINDOWS)
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| 45 | if (pszPath && *pszPath)
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| 46 | {
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| 47 | /* UNC path. */
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| 48 | /** @todo r=bird: it's UNC and we have to check that the next char isn't a
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| 49 | * slash, then skip both the server and the share name. */
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| 50 | if ( (pszPath[0] == '\\' || pszPath[0] == '/')
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| 51 | && (pszPath[1] == '\\' || pszPath[1] == '/'))
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| 52 | return strcspn(pszPath + 2, "\\/") + 2;
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| 53 |
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| 54 | /* Drive letter. */
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| 55 | if ( pszPath[1] == ':'
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| 56 | && RT_C_IS_ALPHA(pszPath[0]))
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| 57 | return 2;
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| 58 | }
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| 59 | return 0;
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| 60 |
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| 61 | #else
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| 62 | /* This isn't quite right when looking at the above stuff, but it works assuming that '//' does not mean UNC. */
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| 63 | /// @todo (dmik) well, it's better to consider there's no volume name
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| 64 | // at all on *nix systems
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| 65 | NOREF(pszPath);
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| 66 | return 0;
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| 67 | // return pszPath && pszPath[0] == '/';
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| 68 | #endif
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| 69 | }
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| 70 |
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