| 1 | /* $Id: dir.h 1 1970-01-01 00:00:00Z vboxsync $ */
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| 2 | /** @file
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| 3 | * InnoTek Portable Runtime - 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 InnoTek Systemberatung GmbH
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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 as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * If you received this file as part of a commercial VirtualBox
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| 18 | * distribution, then only the terms of your commercial VirtualBox
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| 19 | * license agreement apply instead of the previous paragraph.
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| 20 | */
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| 21 |
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| 22 |
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| 23 | #ifndef __internal_dir_h__
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| 24 | #define __internal_dir_h__
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| 25 |
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| 26 | #include <iprt/cdefs.h>
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| 27 | #include <iprt/types.h>
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| 28 |
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| 29 |
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| 30 | /**
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| 31 | * Filter a the filename in the against a filter.
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| 32 | *
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| 33 | * @returns true if the name matches the filter.
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| 34 | * @returns false if the name doesn't match filter.
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| 35 | * @param pDir The directory handle.
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| 36 | * @param pszName The path to match to the filter.
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| 37 | */
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| 38 | typedef DECLCALLBACK(bool) FNRTDIRFILTER(PRTDIR pDir, const char *pszName);
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| 39 | /** Pointer to a filter function. */
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| 40 | typedef FNRTDIRFILTER *PFNRTDIRFILTER;
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| 41 |
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| 42 |
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| 43 | /**
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| 44 | * Open directory.
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| 45 | */
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| 46 | typedef struct RTDIR
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| 47 | {
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| 48 | /** Magic value, RTDIR_MAGIC. */
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| 49 | uint32_t u32Magic;
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| 50 | /** The type of filter that's to be applied to the directory listing. */
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| 51 | RTDIRFILTER enmFilter;
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| 52 | /** The filter function. */
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| 53 | PFNRTDIRFILTER pfnFilter;
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| 54 | /** The filter Code Point string.
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| 55 | * This is allocated in the same block as this structure. */
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| 56 | PRTUNICP puszFilter;
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| 57 | /** The number of Code Points in the filter string. */
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| 58 | size_t cucFilter;
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| 59 | /** The filter string.
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| 60 | * This is allocated in the same block as this structure, thus the const. */
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| 61 | const char *pszFilter;
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| 62 | /** The length of the filter string. */
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| 63 | unsigned cchFilter;
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| 64 | /** Normalized path to the directory including a trailing slash.
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| 65 | * We keep this around so we can query more information if required (posix).
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| 66 | * This is allocated in the same block as this structure, thus the const. */
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| 67 | const char *pszPath;
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| 68 | /** The length of the path. */
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| 69 | unsigned cchPath;
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| 70 | /** Set to indicate that the Data member contains unread data. */
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| 71 | bool fDataUnread;
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| 72 | #ifndef RT_DONT_CONVERT_FILENAMES
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| 73 | /** Pointer to the converted filename.
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| 74 | * This can be NULL. */
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| 75 | char *pszName;
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| 76 | /** The length of the converted filename. */
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| 77 | unsigned cchName;
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| 78 | #endif
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| 79 |
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| 80 | #ifdef __WIN__
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| 81 | /** Handle to the opened directory search. */
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| 82 | HANDLE hDir;
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| 83 | /** Find data buffer.
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| 84 | * fDataUnread indicates valid data. */
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| 85 | # ifdef RT_DONT_CONVERT_FILENAMES
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| 86 | WIN32_FIND_DATAA Data;
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| 87 | # else
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| 88 | WIN32_FIND_DATAW Data;
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| 89 | # endif
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| 90 |
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| 91 | #else /* 'POSIX': */
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| 92 | /** What opendir() returned. */
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| 93 | DIR *pDir;
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| 94 | /** Find data buffer.
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| 95 | * fDataUnread indicates valid data. */
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| 96 | struct dirent Data;
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| 97 | #endif
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| 98 | } RTDIR;
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| 99 |
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| 100 | /** The value of RTDIR::u32Magic. (Michael Ende) */
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| 101 | #define RTDIR_MAGIC 0x19291112
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| 102 | /** The value of RTDIR::u32Magic after RTDirClose(). */
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| 103 | #define RTDIR_MAGIC_DEAD 0x19950829
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| 104 |
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| 105 |
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| 106 | /**
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| 107 | * Validates a directory handle.
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| 108 | * @returns true if valid.
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| 109 | * @returns false if valid after having bitched about it first.
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| 110 | */
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| 111 | DECLINLINE(bool) rtDirValidHandle(PRTDIR pDir)
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| 112 | {
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| 113 | AssertMsgReturn(VALID_PTR(pDir), ("%p\n", pDir), false);
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| 114 | AssertMsgReturn(pDir->u32Magic == RTDIR_MAGIC, ("%#RX32\n", pDir->u32Magic), false);
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| 115 | return true;
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| 116 | }
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| 117 |
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| 118 |
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| 119 | /**
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| 120 | * Initialize the OS specific part of the handle and open the directory.
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| 121 | * Called by rtDirOpenCommon().
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| 122 | *
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| 123 | * @returns IPRT status code.
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| 124 | * @param pDir The directory to open. The pszPath member contains the
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| 125 | * path to the directory.
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| 126 | * @param pszPathBuf Pointer to a RTPATH_MAX sized buffer containing pszPath.
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| 127 | * Find-first style systems can use this to setup the
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| 128 | * wildcard expression.
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| 129 | */
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| 130 | int rtOpenDirNative(PRTDIR pDir, char *pszPathBuf);
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| 131 |
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| 132 | #endif
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