| 1 | /* $Id: dir.h 28918 2010-04-29 18:30:09Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Internal Header for RTDir.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 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 | #ifndef ___internal_dir_h
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| 28 | #define ___internal_dir_h
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| 29 |
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| 30 | #include <iprt/cdefs.h>
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| 31 | #include <iprt/types.h>
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| 32 | #include "internal/magics.h"
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| 33 |
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| 34 |
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| 35 | /**
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| 36 | * Filter a the filename in the against a filter.
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| 37 | *
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| 38 | * @returns true if the name matches the filter.
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| 39 | * @returns false if the name doesn't match filter.
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| 40 | * @param pDir The directory handle.
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| 41 | * @param pszName The path to match to the filter.
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| 42 | */
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| 43 | typedef DECLCALLBACK(bool) FNRTDIRFILTER(PRTDIR pDir, const char *pszName);
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| 44 | /** Pointer to a filter function. */
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| 45 | typedef FNRTDIRFILTER *PFNRTDIRFILTER;
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| 46 |
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| 47 |
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| 48 | /**
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| 49 | * Open directory.
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| 50 | */
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| 51 | typedef struct RTDIR
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| 52 | {
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| 53 | /** Magic value, RTDIR_MAGIC. */
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| 54 | uint32_t u32Magic;
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| 55 | /** The type of filter that's to be applied to the directory listing. */
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| 56 | RTDIRFILTER enmFilter;
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| 57 | /** The filter function. */
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| 58 | PFNRTDIRFILTER pfnFilter;
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| 59 | /** The filter Code Point string.
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| 60 | * This is allocated in the same block as this structure. */
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| 61 | PRTUNICP puszFilter;
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| 62 | /** The number of Code Points in the filter string. */
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| 63 | size_t cucFilter;
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| 64 | /** The filter string.
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| 65 | * This is allocated in the same block as this structure, thus the const. */
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| 66 | const char *pszFilter;
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| 67 | /** The length of the filter string. */
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| 68 | size_t cchFilter;
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| 69 | /** Normalized path to the directory including a trailing slash.
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| 70 | * We keep this around so we can query more information if required (posix).
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| 71 | * This is allocated in the same block as this structure, thus the const. */
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| 72 | const char *pszPath;
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| 73 | /** The length of the path. */
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| 74 | size_t cchPath;
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| 75 | /** Set to indicate that the Data member contains unread data. */
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| 76 | bool fDataUnread;
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| 77 | /** Pointer to the converted filename.
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| 78 | * This can be NULL. */
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| 79 | #ifdef RT_OS_WINDOWS
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| 80 | char *pszName;
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| 81 | #else
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| 82 | char const *pszName;
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| 83 | #endif
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| 84 | /** The length of the converted filename. */
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| 85 | size_t cchName;
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| 86 |
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| 87 | #ifdef RT_OS_WINDOWS
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| 88 | /** Handle to the opened directory search. */
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| 89 | HANDLE hDir;
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| 90 | /** Find data buffer.
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| 91 | * fDataUnread indicates valid data. */
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| 92 | WIN32_FIND_DATAW Data;
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| 93 |
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| 94 | #else /* 'POSIX': */
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| 95 | /** What opendir() returned. */
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| 96 | DIR *pDir;
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| 97 | /** The max size of the d_name member.
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| 98 | * This includes the 0 terminator of course.*/
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| 99 | size_t cbMaxName;
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| 100 | /** Find data buffer.
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| 101 | * fDataUnread indicates valid data. */
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| 102 | struct dirent Data;
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| 103 | #endif
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| 104 | } RTDIR;
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| 105 |
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| 106 |
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| 107 | /**
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| 108 | * Validates a directory handle.
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| 109 | * @returns true if valid.
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| 110 | * @returns false if valid after having bitched about it first.
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| 111 | */
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| 112 | DECLINLINE(bool) rtDirValidHandle(PRTDIR pDir)
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| 113 | {
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| 114 | AssertMsgReturn(VALID_PTR(pDir), ("%p\n", pDir), false);
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| 115 | AssertMsgReturn(pDir->u32Magic == RTDIR_MAGIC, ("%#RX32\n", pDir->u32Magic), false);
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| 116 | return true;
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| 117 | }
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| 118 |
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| 119 |
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| 120 | /**
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| 121 | * Initialize the OS specific part of the handle and open the directory.
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| 122 | * Called by rtDirOpenCommon().
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| 123 | *
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| 124 | * @returns IPRT status code.
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| 125 | * @param pDir The directory to open. The pszPath member contains the
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| 126 | * path to the directory.
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| 127 | * @param pszPathBuf Pointer to a RTPATH_MAX sized buffer containing pszPath.
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| 128 | * Find-first style systems can use this to setup the
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| 129 | * wildcard expression.
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| 130 | */
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| 131 | int rtDirNativeOpen(PRTDIR pDir, char *pszPathBuf);
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| 132 |
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| 133 | #endif
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