| 1 | /* $Id: RTPathGetCurrentDrive-generic.cpp 69111 2017-10-17 14:26:02Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTPathGetCurrentDrive, generic implementation.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2014-2017 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 | #define LOG_GROUP RTLOGGROUP_PATH
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| 32 | #include <iprt/path.h>
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| 33 | #include "internal/iprt.h"
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| 34 |
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| 35 | #include <iprt/ctype.h>
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| 36 | #include <iprt/err.h>
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| 37 | #include <iprt/string.h>
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| 38 | #include "internal/path.h"
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| 39 |
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| 40 |
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| 41 | RTDECL(int) RTPathGetCurrentDrive(char *pszPath, size_t cbPath)
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| 42 | {
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| 43 | #ifdef HAVE_DRIVE
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| 44 | /*
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| 45 | * Query the current directroy and extract the wanted information from it.
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| 46 | */
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| 47 | int rc = RTPathGetCurrent(pszPath, cbPath);
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| 48 | if (RT_SUCCESS(rc))
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| 49 | {
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| 50 | /*
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| 51 | * Drive letter? Chop off at root slash.
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| 52 | */
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| 53 | if (pszPath[0] && RTPATH_IS_VOLSEP(pszPath[1]))
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| 54 | {
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| 55 | pszPath[2] = '\0';
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| 56 | return rc;
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| 57 | }
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| 58 |
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| 59 | /*
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| 60 | * UNC? Chop off after share.
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| 61 | */
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| 62 | if ( RTPATH_IS_SLASH(pszPath[0])
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| 63 | && RTPATH_IS_SLASH(pszPath[1])
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| 64 | && !RTPATH_IS_SLASH(pszPath[2])
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| 65 | && pszPath[2])
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| 66 | {
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| 67 | /* Work thru the server name. */
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| 68 | size_t off = 3;
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| 69 | while (!RTPATH_IS_SLASH(pszPath[off]) && pszPath[off])
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| 70 | off++;
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| 71 | size_t offServerSlash = off;
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| 72 |
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| 73 | /* Is there a share name? */
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| 74 | if (RTPATH_IS_SLASH(pszPath[off]))
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| 75 | {
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| 76 | while (RTPATH_IS_SLASH(pszPath[off]))
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| 77 | off++;
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| 78 | if (pszPath[off])
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| 79 | {
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| 80 | /* Work thru the share name. */
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| 81 | while (!RTPATH_IS_SLASH(pszPath[off]) && pszPath[off])
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| 82 | off++;
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| 83 | }
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| 84 | /* No share name, chop at server name. */
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| 85 | else
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| 86 | off = offServerSlash;
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| 87 | }
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| 88 | }
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| 89 | return VERR_INTERNAL_ERROR_4;
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| 90 | }
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| 91 | return rc;
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| 92 |
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| 93 | #else /* !HAVE_DRIVE */
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| 94 | /*
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| 95 | * No drive letters on this system, return empty string.
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| 96 | */
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| 97 | if (cbPath > 0)
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| 98 | {
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| 99 | *pszPath = '\0';
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| 100 | return VINF_SUCCESS;
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| 101 | }
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| 102 | return VERR_BUFFER_OVERFLOW;
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| 103 | #endif /* !HAVE_DRIVE */
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| 104 | }
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| 105 | RT_EXPORT_SYMBOL(RTPathGetCurrentDrive);
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| 106 |
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