[1] | 1 | /* $Id: fileio-win.cpp 104284 2024-04-11 00:04:48Z vboxsync $ */
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| 2 | /** @file
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[8245] | 3 | * IPRT - File I/O, native implementation for the Windows host platform.
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[1] | 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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[1] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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[5999] | 11 | *
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[96407] | 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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[5999] | 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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[96407] | 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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[5999] | 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[1] | 35 | */
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| 36 |
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| 37 |
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[57358] | 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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[1] | 41 | #define LOG_GROUP RTLOGGROUP_DIR
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[39027] | 42 | #ifndef _WIN32_WINNT
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| 43 | # define _WIN32_WINNT 0x0500
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| 44 | #endif
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[75544] | 45 | #include <iprt/nt/nt-and-windows.h>
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[1] | 46 |
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| 47 | #include <iprt/file.h>
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[57620] | 48 |
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| 49 | #include <iprt/asm.h>
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| 50 | #include <iprt/assert.h>
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[1] | 51 | #include <iprt/path.h>
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| 52 | #include <iprt/string.h>
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| 53 | #include <iprt/err.h>
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[57603] | 54 | #include <iprt/ldr.h>
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[1] | 55 | #include <iprt/log.h>
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[82834] | 56 | #include <iprt/utf16.h>
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[1] | 57 | #include "internal/file.h"
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| 58 | #include "internal/fs.h"
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| 59 | #include "internal/path.h"
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[74358] | 60 | #include "internal-r3-win.h" /* For g_enmWinVer + kRTWinOSType_XXX */
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[1] | 61 |
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| 62 |
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[57358] | 63 | /*********************************************************************************************************************************
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| 64 | * Defined Constants And Macros *
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| 65 | *********************************************************************************************************************************/
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[57603] | 66 | typedef BOOL WINAPI FNVERIFYCONSOLEIOHANDLE(HANDLE);
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| 67 | typedef FNVERIFYCONSOLEIOHANDLE *PFNVERIFYCONSOLEIOHANDLE; /* No, nobody fell on the keyboard, really! */
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[1] | 68 |
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[82835] | 69 |
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[1] | 70 | /**
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| 71 | * This is wrapper around the ugly SetFilePointer api.
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| 72 | *
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| 73 | * It's equivalent to SetFilePointerEx which we so unfortunately cannot use because of
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| 74 | * it not being present in NT4 GA.
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| 75 | *
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| 76 | * @returns Success indicator. Extended error information obtainable using GetLastError().
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[37596] | 77 | * @param hFile Filehandle.
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[1] | 78 | * @param offSeek Offset to seek.
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| 79 | * @param poffNew Where to store the new file offset. NULL allowed.
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| 80 | * @param uMethod Seek method. (The windows one!)
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| 81 | */
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[37596] | 82 | DECLINLINE(bool) MySetFilePointer(RTFILE hFile, uint64_t offSeek, uint64_t *poffNew, unsigned uMethod)
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[1] | 83 | {
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[6431] | 84 | bool fRc;
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[1] | 85 | LARGE_INTEGER off;
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[6431] | 86 |
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[1] | 87 | off.QuadPart = offSeek;
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| 88 | #if 1
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[6431] | 89 | if (off.LowPart != INVALID_SET_FILE_POINTER)
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| 90 | {
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[37596] | 91 | off.LowPart = SetFilePointer((HANDLE)RTFileToNative(hFile), off.LowPart, &off.HighPart, uMethod);
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[6431] | 92 | fRc = off.LowPart != INVALID_SET_FILE_POINTER;
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| 93 | }
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| 94 | else
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| 95 | {
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| 96 | SetLastError(NO_ERROR);
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[37598] | 97 | off.LowPart = SetFilePointer((HANDLE)RTFileToNative(hFile), off.LowPart, &off.HighPart, uMethod);
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[6431] | 98 | fRc = GetLastError() == NO_ERROR;
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| 99 | }
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[1] | 100 | #else
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[37596] | 101 | fRc = SetFilePointerEx((HANDLE)RTFileToNative(hFile), off, &off, uMethod);
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[1] | 102 | #endif
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| 103 | if (fRc && poffNew)
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| 104 | *poffNew = off.QuadPart;
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| 105 | return fRc;
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| 106 | }
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| 107 |
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| 108 |
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[1532] | 109 | /**
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[77231] | 110 | * Helper for checking if a VERR_DISK_FULL isn't a VERR_FILE_TOO_BIG.
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| 111 | * @returns VERR_DISK_FULL or VERR_FILE_TOO_BIG.
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[1532] | 112 | */
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[77231] | 113 | static int rtFileWinCheckIfDiskReallyFull(RTFILE hFile, uint64_t cbDesired)
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[1532] | 114 | {
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| 115 | /*
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[77231] | 116 | * Windows doesn't appear to have a way to query the file size limit of a
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| 117 | * file system, so we have to deduce the limit from the file system driver name.
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| 118 | * This means it will only work for known file systems.
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[1532] | 119 | */
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[77231] | 120 | if (cbDesired >= _2G - 1)
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[1532] | 121 | {
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[77231] | 122 | uint64_t cbMaxFile = UINT64_MAX;
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| 123 | RTFSTYPE enmFsType;
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| 124 | int rc = rtNtQueryFsType((HANDLE)RTFileToNative(hFile), &enmFsType);
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| 125 | if (RT_SUCCESS(rc))
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| 126 | switch (enmFsType)
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| 127 | {
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| 128 | case RTFSTYPE_NTFS:
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| 129 | case RTFSTYPE_EXFAT:
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| 130 | case RTFSTYPE_UDF:
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| 131 | cbMaxFile = UINT64_C(0xffffffffffffffff); /* (May be limited by IFS.) */
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| 132 | break;
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| 133 |
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| 134 | case RTFSTYPE_ISO9660:
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| 135 | cbMaxFile = 8 *_1T;
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| 136 | break;
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| 137 |
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| 138 | case RTFSTYPE_FAT:
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| 139 | cbMaxFile = _4G;
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| 140 | break;
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| 141 |
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| 142 | case RTFSTYPE_HPFS:
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| 143 | cbMaxFile = _2G;
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| 144 | break;
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| 145 |
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| 146 | default:
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| 147 | break;
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| 148 | }
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| 149 | if (cbDesired >= cbMaxFile)
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| 150 | return VERR_FILE_TOO_BIG;
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[1532] | 151 | }
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[77231] | 152 | return VERR_DISK_FULL;
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[1532] | 153 | }
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| 154 |
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| 155 |
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[8560] | 156 | RTR3DECL(int) RTFileFromNative(PRTFILE pFile, RTHCINTPTR uNative)
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| 157 | {
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| 158 | HANDLE h = (HANDLE)uNative;
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[37598] | 159 | AssertCompile(sizeof(h) == sizeof(uNative));
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| 160 | if (h == INVALID_HANDLE_VALUE)
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[8560] | 161 | {
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| 162 | AssertMsgFailed(("%p\n", uNative));
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| 163 | *pFile = NIL_RTFILE;
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| 164 | return VERR_INVALID_HANDLE;
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| 165 | }
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| 166 | *pFile = (RTFILE)h;
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| 167 | return VINF_SUCCESS;
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| 168 | }
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| 169 |
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| 170 |
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[37596] | 171 | RTR3DECL(RTHCINTPTR) RTFileToNative(RTFILE hFile)
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[8560] | 172 | {
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[37596] | 173 | AssertReturn(hFile != NIL_RTFILE, (RTHCINTPTR)INVALID_HANDLE_VALUE);
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| 174 | return (RTHCINTPTR)hFile;
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[8560] | 175 | }
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| 176 |
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| 177 |
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[37596] | 178 | RTR3DECL(int) RTFileOpen(PRTFILE pFile, const char *pszFilename, uint64_t fOpen)
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[1] | 179 | {
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[77681] | 180 | return RTFileOpenEx(pszFilename, fOpen, pFile, NULL);
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| 181 | }
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| 182 |
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| 183 |
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| 184 | RTDECL(int) RTFileOpenEx(const char *pszFilename, uint64_t fOpen, PRTFILE phFile, PRTFILEACTION penmActionTaken)
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| 185 | {
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[1] | 186 | /*
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| 187 | * Validate input.
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| 188 | */
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[77681] | 189 | AssertReturn(phFile, VERR_INVALID_PARAMETER);
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| 190 | *phFile = NIL_RTFILE;
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| 191 | if (penmActionTaken)
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| 192 | *penmActionTaken = RTFILEACTION_INVALID;
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| 193 | AssertReturn(pszFilename, VERR_INVALID_PARAMETER);
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[1] | 194 |
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| 195 | /*
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| 196 | * Merge forced open flags and validate them.
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| 197 | */
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| 198 | int rc = rtFileRecalcAndValidateFlags(&fOpen);
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| 199 | if (RT_FAILURE(rc))
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| 200 | return rc;
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| 201 |
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| 202 | /*
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| 203 | * Determine disposition, access, share mode, creation flags, and security attributes
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| 204 | * for the CreateFile API call.
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| 205 | */
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| 206 | DWORD dwCreationDisposition;
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| 207 | switch (fOpen & RTFILE_O_ACTION_MASK)
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| 208 | {
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| 209 | case RTFILE_O_OPEN:
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| 210 | dwCreationDisposition = fOpen & RTFILE_O_TRUNCATE ? TRUNCATE_EXISTING : OPEN_EXISTING;
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| 211 | break;
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| 212 | case RTFILE_O_OPEN_CREATE:
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| 213 | dwCreationDisposition = OPEN_ALWAYS;
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| 214 | break;
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| 215 | case RTFILE_O_CREATE:
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| 216 | dwCreationDisposition = CREATE_NEW;
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| 217 | break;
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| 218 | case RTFILE_O_CREATE_REPLACE:
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| 219 | dwCreationDisposition = CREATE_ALWAYS;
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| 220 | break;
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| 221 | default:
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[77681] | 222 | AssertMsgFailedReturn(("Impossible fOpen=%#llx\n", fOpen), VERR_INVALID_FLAGS);
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[1] | 223 | }
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| 224 |
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| 225 | DWORD dwDesiredAccess;
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| 226 | switch (fOpen & RTFILE_O_ACCESS_MASK)
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| 227 | {
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[21582] | 228 | case RTFILE_O_READ:
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| 229 | dwDesiredAccess = FILE_GENERIC_READ; /* RTFILE_O_APPEND is ignored. */
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| 230 | break;
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| 231 | case RTFILE_O_WRITE:
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[21616] | 232 | dwDesiredAccess = fOpen & RTFILE_O_APPEND
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| 233 | ? FILE_GENERIC_WRITE & ~FILE_WRITE_DATA
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| 234 | : FILE_GENERIC_WRITE;
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[21582] | 235 | break;
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| 236 | case RTFILE_O_READWRITE:
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[21616] | 237 | dwDesiredAccess = fOpen & RTFILE_O_APPEND
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| 238 | ? FILE_GENERIC_READ | (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
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| 239 | : FILE_GENERIC_READ | FILE_GENERIC_WRITE;
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[21582] | 240 | break;
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[58768] | 241 | case RTFILE_O_ATTR_ONLY:
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| 242 | if (fOpen & RTFILE_O_ACCESS_ATTR_MASK)
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| 243 | {
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| 244 | dwDesiredAccess = 0;
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| 245 | break;
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| 246 | }
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[69046] | 247 | RT_FALL_THRU();
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[1] | 248 | default:
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[77681] | 249 | AssertMsgFailedReturn(("Impossible fOpen=%#llx\n", fOpen), VERR_INVALID_FLAGS);
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[1] | 250 | }
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[24338] | 251 | if (dwCreationDisposition == TRUNCATE_EXISTING)
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[24341] | 252 | /* Required for truncating the file (see MSDN), it is *NOT* part of FILE_GENERIC_WRITE. */
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[24338] | 253 | dwDesiredAccess |= GENERIC_WRITE;
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[18128] | 254 |
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[16650] | 255 | /* RTFileSetMode needs following rights as well. */
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[18128] | 256 | switch (fOpen & RTFILE_O_ACCESS_ATTR_MASK)
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| 257 | {
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[21616] | 258 | case RTFILE_O_ACCESS_ATTR_READ: dwDesiredAccess |= FILE_READ_ATTRIBUTES | SYNCHRONIZE; break;
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[18128] | 259 | case RTFILE_O_ACCESS_ATTR_WRITE: dwDesiredAccess |= FILE_WRITE_ATTRIBUTES | SYNCHRONIZE; break;
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| 260 | case RTFILE_O_ACCESS_ATTR_READWRITE: dwDesiredAccess |= FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES | SYNCHRONIZE; break;
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| 261 | default:
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| 262 | /* Attributes access is the same as the file access. */
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| 263 | switch (fOpen & RTFILE_O_ACCESS_MASK)
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| 264 | {
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[21616] | 265 | case RTFILE_O_READ: dwDesiredAccess |= FILE_READ_ATTRIBUTES | SYNCHRONIZE; break;
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| 266 | case RTFILE_O_WRITE: dwDesiredAccess |= FILE_WRITE_ATTRIBUTES | SYNCHRONIZE; break;
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| 267 | case RTFILE_O_READWRITE: dwDesiredAccess |= FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES | SYNCHRONIZE; break;
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[18128] | 268 | default:
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[77681] | 269 | AssertMsgFailedReturn(("Impossible fOpen=%#llx\n", fOpen), VERR_INVALID_FLAGS);
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[18128] | 270 | }
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| 271 | }
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[1] | 272 |
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| 273 | DWORD dwShareMode;
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| 274 | switch (fOpen & RTFILE_O_DENY_MASK)
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| 275 | {
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| 276 | case RTFILE_O_DENY_NONE: dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE; break;
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| 277 | case RTFILE_O_DENY_READ: dwShareMode = FILE_SHARE_WRITE; break;
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| 278 | case RTFILE_O_DENY_WRITE: dwShareMode = FILE_SHARE_READ; break;
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| 279 | case RTFILE_O_DENY_READWRITE: dwShareMode = 0; break;
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| 280 |
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[69102] | 281 | case RTFILE_O_DENY_NOT_DELETE: dwShareMode = FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE; break;
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[1] | 282 | case RTFILE_O_DENY_NOT_DELETE | RTFILE_O_DENY_READ: dwShareMode = FILE_SHARE_DELETE | FILE_SHARE_WRITE; break;
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| 283 | case RTFILE_O_DENY_NOT_DELETE | RTFILE_O_DENY_WRITE: dwShareMode = FILE_SHARE_DELETE | FILE_SHARE_READ; break;
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| 284 | case RTFILE_O_DENY_NOT_DELETE | RTFILE_O_DENY_READWRITE:dwShareMode = FILE_SHARE_DELETE; break;
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| 285 | default:
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[77681] | 286 | AssertMsgFailedReturn(("Impossible fOpen=%#llx\n", fOpen), VERR_INVALID_FLAGS);
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[1] | 287 | }
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| 288 |
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| 289 | SECURITY_ATTRIBUTES SecurityAttributes;
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| 290 | PSECURITY_ATTRIBUTES pSecurityAttributes = NULL;
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| 291 | if (fOpen & RTFILE_O_INHERIT)
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| 292 | {
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| 293 | SecurityAttributes.nLength = sizeof(SecurityAttributes);
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| 294 | SecurityAttributes.lpSecurityDescriptor = NULL;
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| 295 | SecurityAttributes.bInheritHandle = TRUE;
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| 296 | pSecurityAttributes = &SecurityAttributes;
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| 297 | }
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| 298 |
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| 299 | DWORD dwFlagsAndAttributes;
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[96076] | 300 | dwFlagsAndAttributes = !(fOpen & RTFILE_O_TEMP_AUTO_DELETE) ? FILE_ATTRIBUTE_NORMAL : FILE_ATTRIBUTE_TEMPORARY;
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| 301 | if (fOpen & RTFILE_O_TEMP_AUTO_DELETE)
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| 302 | fOpen |= FILE_FLAG_DELETE_ON_CLOSE;
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[1] | 303 | if (fOpen & RTFILE_O_WRITE_THROUGH)
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| 304 | dwFlagsAndAttributes |= FILE_FLAG_WRITE_THROUGH;
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[19186] | 305 | if (fOpen & RTFILE_O_ASYNC_IO)
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| 306 | dwFlagsAndAttributes |= FILE_FLAG_OVERLAPPED;
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[21493] | 307 | if (fOpen & RTFILE_O_NO_CACHE)
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[23047] | 308 | {
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[21493] | 309 | dwFlagsAndAttributes |= FILE_FLAG_NO_BUFFERING;
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[23047] | 310 | dwDesiredAccess &= ~FILE_APPEND_DATA;
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| 311 | }
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[1] | 312 |
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| 313 | /*
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| 314 | * Open/Create the file.
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| 315 | */
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[74460] | 316 | PRTUTF16 pwszFilename;
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| 317 | rc = RTPathWinFromUtf8(&pwszFilename, pszFilename, 0 /*fFlags*/);
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| 318 | if (RT_SUCCESS(rc))
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[74358] | 319 | {
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[74460] | 320 | HANDLE hFile = CreateFileW(pwszFilename,
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| 321 | dwDesiredAccess,
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| 322 | dwShareMode,
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| 323 | pSecurityAttributes,
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| 324 | dwCreationDisposition,
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| 325 | dwFlagsAndAttributes,
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| 326 | NULL);
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[77681] | 327 | DWORD const dwErr = GetLastError();
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[74460] | 328 | if (hFile != INVALID_HANDLE_VALUE)
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| 329 | {
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[77681] | 330 | /*
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| 331 | * Calculate the action taken value.
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| 332 | */
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| 333 | RTFILEACTION enmActionTaken;
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| 334 | switch (dwCreationDisposition)
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| 335 | {
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| 336 | case CREATE_NEW:
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| 337 | enmActionTaken = RTFILEACTION_CREATED;
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| 338 | break;
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| 339 | case CREATE_ALWAYS:
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| 340 | AssertMsg(dwErr == ERROR_ALREADY_EXISTS || dwErr == NO_ERROR, ("%u\n", dwErr));
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| 341 | enmActionTaken = dwErr == ERROR_ALREADY_EXISTS ? RTFILEACTION_REPLACED : RTFILEACTION_CREATED;
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| 342 | break;
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| 343 | case OPEN_EXISTING:
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| 344 | enmActionTaken = RTFILEACTION_OPENED;
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| 345 | break;
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| 346 | case OPEN_ALWAYS:
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| 347 | AssertMsg(dwErr == ERROR_ALREADY_EXISTS || dwErr == NO_ERROR, ("%u\n", dwErr));
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| 348 | enmActionTaken = dwErr == ERROR_ALREADY_EXISTS ? RTFILEACTION_OPENED : RTFILEACTION_CREATED;
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| 349 | break;
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| 350 | case TRUNCATE_EXISTING:
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| 351 | enmActionTaken = RTFILEACTION_TRUNCATED;
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| 352 | break;
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| 353 | default:
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| 354 | AssertMsgFailed(("%d %#x\n", dwCreationDisposition, dwCreationDisposition));
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| 355 | enmActionTaken = RTFILEACTION_INVALID;
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| 356 | break;
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| 357 | }
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[74358] | 358 |
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[74460] | 359 | /*
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[77681] | 360 | * Turn off indexing of directory through Windows Indexing Service if
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| 361 | * we created a new file or replaced an existing one.
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[74460] | 362 | */
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[77681] | 363 | if ( (fOpen & RTFILE_O_NOT_CONTENT_INDEXED)
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| 364 | && ( enmActionTaken == RTFILEACTION_CREATED
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| 365 | || enmActionTaken == RTFILEACTION_REPLACED) )
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[74358] | 366 | {
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[77681] | 367 | /** @todo there must be a way to do this via the handle! */
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[74460] | 368 | if (!SetFileAttributesW(pwszFilename, FILE_ATTRIBUTE_NOT_CONTENT_INDEXED))
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| 369 | rc = RTErrConvertFromWin32(GetLastError());
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[74358] | 370 | }
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[74460] | 371 | /*
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[77681] | 372 | * If RTFILEACTION_OPENED, we may need to truncate the file.
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[74460] | 373 | */
|
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[77681] | 374 | else if ( (fOpen & (RTFILE_O_TRUNCATE | RTFILE_O_ACTION_MASK)) == (RTFILE_O_TRUNCATE | RTFILE_O_OPEN_CREATE)
|
---|
| 375 | && enmActionTaken == RTFILEACTION_OPENED)
|
---|
[74460] | 376 | {
|
---|
[77681] | 377 | if (SetEndOfFile(hFile))
|
---|
| 378 | enmActionTaken = RTFILEACTION_TRUNCATED;
|
---|
| 379 | else
|
---|
[74460] | 380 | rc = RTErrConvertFromWin32(GetLastError());
|
---|
| 381 | }
|
---|
[77681] | 382 | if (penmActionTaken)
|
---|
| 383 | *penmActionTaken = enmActionTaken;
|
---|
[74460] | 384 | if (RT_SUCCESS(rc))
|
---|
| 385 | {
|
---|
[77681] | 386 | *phFile = (RTFILE)hFile;
|
---|
| 387 | Assert((HANDLE)*phFile == hFile);
|
---|
[74460] | 388 | RTPathWinFree(pwszFilename);
|
---|
| 389 | return VINF_SUCCESS;
|
---|
| 390 | }
|
---|
[74358] | 391 |
|
---|
[74460] | 392 | CloseHandle(hFile);
|
---|
[6994] | 393 | }
|
---|
[74460] | 394 | else
|
---|
[77681] | 395 | {
|
---|
| 396 | if ( penmActionTaken
|
---|
| 397 | && dwCreationDisposition == CREATE_NEW
|
---|
| 398 | && dwErr == ERROR_FILE_EXISTS)
|
---|
| 399 | *penmActionTaken = RTFILEACTION_ALREADY_EXISTS;
|
---|
| 400 | rc = RTErrConvertFromWin32(dwErr);
|
---|
| 401 | }
|
---|
[74460] | 402 | RTPathWinFree(pwszFilename);
|
---|
[6971] | 403 | }
|
---|
[6994] | 404 | return rc;
|
---|
[1] | 405 | }
|
---|
| 406 |
|
---|
| 407 |
|
---|
[37596] | 408 | RTR3DECL(int) RTFileOpenBitBucket(PRTFILE phFile, uint64_t fAccess)
|
---|
[26761] | 409 | {
|
---|
| 410 | AssertReturn( fAccess == RTFILE_O_READ
|
---|
| 411 | || fAccess == RTFILE_O_WRITE
|
---|
| 412 | || fAccess == RTFILE_O_READWRITE,
|
---|
| 413 | VERR_INVALID_PARAMETER);
|
---|
| 414 | return RTFileOpen(phFile, "NUL", fAccess | RTFILE_O_DENY_NONE | RTFILE_O_OPEN);
|
---|
| 415 | }
|
---|
| 416 |
|
---|
| 417 |
|
---|
[96124] | 418 | RTDECL(int) RTFileDup(RTFILE hFileSrc, uint64_t fFlags, PRTFILE phFileNew)
|
---|
| 419 | {
|
---|
| 420 | /*
|
---|
| 421 | * Validate input.
|
---|
| 422 | */
|
---|
| 423 | AssertPtrReturn(phFileNew, VERR_INVALID_POINTER);
|
---|
| 424 | *phFileNew = NIL_RTFILE;
|
---|
| 425 | AssertPtrReturn(phFileNew, VERR_INVALID_POINTER);
|
---|
| 426 | AssertReturn(!(fFlags & ~(uint64_t)RTFILE_O_INHERIT), VERR_INVALID_FLAGS);
|
---|
| 427 |
|
---|
| 428 | /*
|
---|
| 429 | * Do the job.
|
---|
| 430 | */
|
---|
| 431 | HANDLE hNew = INVALID_HANDLE_VALUE;
|
---|
| 432 | if (DuplicateHandle(GetCurrentProcess(), (HANDLE)RTFileToNative(hFileSrc),
|
---|
| 433 | GetCurrentProcess(), &hNew, 0, RT_BOOL(fFlags & RTFILE_O_INHERIT), DUPLICATE_SAME_ACCESS))
|
---|
| 434 | {
|
---|
| 435 | *phFileNew = (RTFILE)hNew;
|
---|
| 436 | return VINF_SUCCESS;
|
---|
| 437 | }
|
---|
| 438 | return RTErrConvertFromWin32(GetLastError());
|
---|
| 439 | }
|
---|
| 440 |
|
---|
| 441 |
|
---|
[37596] | 442 | RTR3DECL(int) RTFileClose(RTFILE hFile)
|
---|
[1] | 443 | {
|
---|
[37596] | 444 | if (hFile == NIL_RTFILE)
|
---|
[34579] | 445 | return VINF_SUCCESS;
|
---|
[37596] | 446 | if (CloseHandle((HANDLE)RTFileToNative(hFile)))
|
---|
[1] | 447 | return VINF_SUCCESS;
|
---|
| 448 | return RTErrConvertFromWin32(GetLastError());
|
---|
| 449 | }
|
---|
| 450 |
|
---|
| 451 |
|
---|
[36597] | 452 | RTFILE rtFileGetStandard(RTHANDLESTD enmStdHandle)
|
---|
| 453 | {
|
---|
| 454 | DWORD dwStdHandle;
|
---|
| 455 | switch (enmStdHandle)
|
---|
| 456 | {
|
---|
| 457 | case RTHANDLESTD_INPUT: dwStdHandle = STD_INPUT_HANDLE; break;
|
---|
| 458 | case RTHANDLESTD_OUTPUT: dwStdHandle = STD_OUTPUT_HANDLE; break;
|
---|
| 459 | case RTHANDLESTD_ERROR: dwStdHandle = STD_ERROR_HANDLE; break;
|
---|
| 460 | default:
|
---|
| 461 | AssertFailedReturn(NIL_RTFILE);
|
---|
| 462 | }
|
---|
| 463 |
|
---|
[36601] | 464 | HANDLE hNative = GetStdHandle(dwStdHandle);
|
---|
[36597] | 465 | if (hNative == INVALID_HANDLE_VALUE)
|
---|
| 466 | return NIL_RTFILE;
|
---|
| 467 |
|
---|
[36601] | 468 | RTFILE hFile = (RTFILE)(uintptr_t)hNative;
|
---|
| 469 | AssertReturn((HANDLE)(uintptr_t)hFile == hNative, NIL_RTFILE);
|
---|
[36597] | 470 | return hFile;
|
---|
| 471 | }
|
---|
| 472 |
|
---|
| 473 |
|
---|
[37596] | 474 | RTR3DECL(int) RTFileSeek(RTFILE hFile, int64_t offSeek, unsigned uMethod, uint64_t *poffActual)
|
---|
[1] | 475 | {
|
---|
| 476 | static ULONG aulSeekRecode[] =
|
---|
| 477 | {
|
---|
| 478 | FILE_BEGIN,
|
---|
| 479 | FILE_CURRENT,
|
---|
| 480 | FILE_END,
|
---|
| 481 | };
|
---|
| 482 |
|
---|
| 483 | /*
|
---|
| 484 | * Validate input.
|
---|
| 485 | */
|
---|
| 486 | if (uMethod > RTFILE_SEEK_END)
|
---|
| 487 | {
|
---|
| 488 | AssertMsgFailed(("Invalid uMethod=%d\n", uMethod));
|
---|
| 489 | return VERR_INVALID_PARAMETER;
|
---|
| 490 | }
|
---|
| 491 |
|
---|
| 492 | /*
|
---|
| 493 | * Execute the seek.
|
---|
| 494 | */
|
---|
[37596] | 495 | if (MySetFilePointer(hFile, offSeek, poffActual, aulSeekRecode[uMethod]))
|
---|
[1] | 496 | return VINF_SUCCESS;
|
---|
| 497 | return RTErrConvertFromWin32(GetLastError());
|
---|
| 498 | }
|
---|
| 499 |
|
---|
| 500 |
|
---|
[37596] | 501 | RTR3DECL(int) RTFileRead(RTFILE hFile, void *pvBuf, size_t cbToRead, size_t *pcbRead)
|
---|
[1] | 502 | {
|
---|
| 503 | if (cbToRead <= 0)
|
---|
[76902] | 504 | {
|
---|
| 505 | if (pcbRead)
|
---|
| 506 | *pcbRead = 0;
|
---|
[1] | 507 | return VINF_SUCCESS;
|
---|
[76902] | 508 | }
|
---|
[14064] | 509 | ULONG cbToReadAdj = (ULONG)cbToRead;
|
---|
| 510 | AssertReturn(cbToReadAdj == cbToRead, VERR_NUMBER_TOO_BIG);
|
---|
[1] | 511 |
|
---|
| 512 | ULONG cbRead = 0;
|
---|
[37596] | 513 | if (ReadFile((HANDLE)RTFileToNative(hFile), pvBuf, cbToReadAdj, &cbRead, NULL))
|
---|
[1] | 514 | {
|
---|
| 515 | if (pcbRead)
|
---|
| 516 | /* Caller can handle partial reads. */
|
---|
| 517 | *pcbRead = cbRead;
|
---|
| 518 | else
|
---|
| 519 | {
|
---|
| 520 | /* Caller expects everything to be read. */
|
---|
[14064] | 521 | while (cbToReadAdj > cbRead)
|
---|
[1] | 522 | {
|
---|
| 523 | ULONG cbReadPart = 0;
|
---|
[37596] | 524 | if (!ReadFile((HANDLE)RTFileToNative(hFile), (char*)pvBuf + cbRead, cbToReadAdj - cbRead, &cbReadPart, NULL))
|
---|
[1] | 525 | return RTErrConvertFromWin32(GetLastError());
|
---|
| 526 | if (cbReadPart == 0)
|
---|
| 527 | return VERR_EOF;
|
---|
| 528 | cbRead += cbReadPart;
|
---|
| 529 | }
|
---|
| 530 | }
|
---|
| 531 | return VINF_SUCCESS;
|
---|
| 532 | }
|
---|
[36367] | 533 |
|
---|
[36597] | 534 | /*
|
---|
| 535 | * If it's a console, we might bump into out of memory conditions in the
|
---|
| 536 | * ReadConsole call.
|
---|
[36367] | 537 | */
|
---|
| 538 | DWORD dwErr = GetLastError();
|
---|
| 539 | if (dwErr == ERROR_NOT_ENOUGH_MEMORY)
|
---|
| 540 | {
|
---|
| 541 | ULONG cbChunk = cbToReadAdj / 2;
|
---|
| 542 | if (cbChunk > 16*_1K)
|
---|
| 543 | cbChunk = 16*_1K;
|
---|
| 544 | else
|
---|
| 545 | cbChunk = RT_ALIGN_32(cbChunk, 256);
|
---|
| 546 |
|
---|
| 547 | cbRead = 0;
|
---|
| 548 | while (cbToReadAdj > cbRead)
|
---|
| 549 | {
|
---|
[83739] | 550 | ULONG cbToReadNow = RT_MIN(cbChunk, cbToReadAdj - cbRead);
|
---|
| 551 | ULONG cbReadPart = 0;
|
---|
| 552 | if (!ReadFile((HANDLE)RTFileToNative(hFile), (char *)pvBuf + cbRead, cbToReadNow, &cbReadPart, NULL))
|
---|
[36367] | 553 | {
|
---|
| 554 | /* If we failed because the buffer is too big, shrink it and
|
---|
| 555 | try again. */
|
---|
| 556 | dwErr = GetLastError();
|
---|
| 557 | if ( dwErr == ERROR_NOT_ENOUGH_MEMORY
|
---|
| 558 | && cbChunk > 8)
|
---|
| 559 | {
|
---|
| 560 | cbChunk /= 2;
|
---|
| 561 | continue;
|
---|
| 562 | }
|
---|
| 563 | return RTErrConvertFromWin32(dwErr);
|
---|
| 564 | }
|
---|
| 565 | cbRead += cbReadPart;
|
---|
| 566 |
|
---|
| 567 | /* Return if the caller can handle partial reads, otherwise try
|
---|
| 568 | fill the buffer all the way up. */
|
---|
| 569 | if (pcbRead)
|
---|
| 570 | {
|
---|
| 571 | *pcbRead = cbRead;
|
---|
| 572 | break;
|
---|
| 573 | }
|
---|
| 574 | if (cbReadPart == 0)
|
---|
| 575 | return VERR_EOF;
|
---|
| 576 | }
|
---|
| 577 | return VINF_SUCCESS;
|
---|
| 578 | }
|
---|
[36597] | 579 |
|
---|
[36367] | 580 | return RTErrConvertFromWin32(dwErr);
|
---|
[1] | 581 | }
|
---|
| 582 |
|
---|
| 583 |
|
---|
[77211] | 584 | RTDECL(int) RTFileReadAt(RTFILE hFile, RTFOFF off, void *pvBuf, size_t cbToRead, size_t *pcbRead)
|
---|
| 585 | {
|
---|
| 586 | ULONG cbToReadAdj = (ULONG)cbToRead;
|
---|
| 587 | AssertReturn(cbToReadAdj == cbToRead, VERR_NUMBER_TOO_BIG);
|
---|
| 588 |
|
---|
| 589 | OVERLAPPED Overlapped;
|
---|
| 590 | Overlapped.Offset = (uint32_t)off;
|
---|
| 591 | Overlapped.OffsetHigh = (uint32_t)(off >> 32);
|
---|
| 592 | Overlapped.hEvent = NULL;
|
---|
| 593 | Overlapped.Internal = 0;
|
---|
| 594 | Overlapped.InternalHigh = 0;
|
---|
| 595 |
|
---|
| 596 | ULONG cbRead = 0;
|
---|
| 597 | if (ReadFile((HANDLE)RTFileToNative(hFile), pvBuf, cbToReadAdj, &cbRead, &Overlapped))
|
---|
| 598 | {
|
---|
| 599 | if (pcbRead)
|
---|
| 600 | /* Caller can handle partial reads. */
|
---|
| 601 | *pcbRead = cbRead;
|
---|
| 602 | else
|
---|
| 603 | {
|
---|
| 604 | /* Caller expects everything to be read. */
|
---|
| 605 | while (cbToReadAdj > cbRead)
|
---|
| 606 | {
|
---|
| 607 | Overlapped.Offset = (uint32_t)(off + cbRead);
|
---|
| 608 | Overlapped.OffsetHigh = (uint32_t)((off + cbRead) >> 32);
|
---|
| 609 | Overlapped.hEvent = NULL;
|
---|
| 610 | Overlapped.Internal = 0;
|
---|
| 611 | Overlapped.InternalHigh = 0;
|
---|
| 612 |
|
---|
| 613 | ULONG cbReadPart = 0;
|
---|
| 614 | if (!ReadFile((HANDLE)RTFileToNative(hFile), (char *)pvBuf + cbRead, cbToReadAdj - cbRead,
|
---|
| 615 | &cbReadPart, &Overlapped))
|
---|
| 616 | return RTErrConvertFromWin32(GetLastError());
|
---|
| 617 | if (cbReadPart == 0)
|
---|
| 618 | return VERR_EOF;
|
---|
| 619 | cbRead += cbReadPart;
|
---|
| 620 | }
|
---|
| 621 | }
|
---|
| 622 | return VINF_SUCCESS;
|
---|
| 623 | }
|
---|
[77641] | 624 |
|
---|
| 625 | /* We will get an EOF error when using overlapped I/O. So, make sure we don't
|
---|
| 626 | return it when pcbhRead is not NULL. */
|
---|
| 627 | DWORD dwErr = GetLastError();
|
---|
| 628 | if (pcbRead && dwErr == ERROR_HANDLE_EOF)
|
---|
| 629 | {
|
---|
| 630 | *pcbRead = 0;
|
---|
| 631 | return VINF_SUCCESS;
|
---|
| 632 | }
|
---|
| 633 | return RTErrConvertFromWin32(dwErr);
|
---|
[77211] | 634 | }
|
---|
| 635 |
|
---|
| 636 |
|
---|
[37596] | 637 | RTR3DECL(int) RTFileWrite(RTFILE hFile, const void *pvBuf, size_t cbToWrite, size_t *pcbWritten)
|
---|
[1] | 638 | {
|
---|
| 639 | if (cbToWrite <= 0)
|
---|
| 640 | return VINF_SUCCESS;
|
---|
[69536] | 641 | ULONG const cbToWriteAdj = (ULONG)cbToWrite;
|
---|
[14064] | 642 | AssertReturn(cbToWriteAdj == cbToWrite, VERR_NUMBER_TOO_BIG);
|
---|
[1] | 643 |
|
---|
| 644 | ULONG cbWritten = 0;
|
---|
[37596] | 645 | if (WriteFile((HANDLE)RTFileToNative(hFile), pvBuf, cbToWriteAdj, &cbWritten, NULL))
|
---|
[1] | 646 | {
|
---|
| 647 | if (pcbWritten)
|
---|
| 648 | /* Caller can handle partial writes. */
|
---|
[69536] | 649 | *pcbWritten = RT_MIN(cbWritten, cbToWriteAdj); /* paranoia^3 */
|
---|
[1] | 650 | else
|
---|
| 651 | {
|
---|
| 652 | /* Caller expects everything to be written. */
|
---|
[69536] | 653 | while (cbWritten < cbToWriteAdj)
|
---|
[1] | 654 | {
|
---|
| 655 | ULONG cbWrittenPart = 0;
|
---|
[37596] | 656 | if (!WriteFile((HANDLE)RTFileToNative(hFile), (char*)pvBuf + cbWritten,
|
---|
| 657 | cbToWriteAdj - cbWritten, &cbWrittenPart, NULL))
|
---|
[1532] | 658 | {
|
---|
| 659 | int rc = RTErrConvertFromWin32(GetLastError());
|
---|
[77231] | 660 | if (rc == VERR_DISK_FULL)
|
---|
| 661 | rc = rtFileWinCheckIfDiskReallyFull(hFile, RTFileTell(hFile) + cbToWriteAdj - cbWritten);
|
---|
[1532] | 662 | return rc;
|
---|
| 663 | }
|
---|
[1] | 664 | if (cbWrittenPart == 0)
|
---|
| 665 | return VERR_WRITE_ERROR;
|
---|
| 666 | cbWritten += cbWrittenPart;
|
---|
| 667 | }
|
---|
| 668 | }
|
---|
| 669 | return VINF_SUCCESS;
|
---|
| 670 | }
|
---|
[36367] | 671 |
|
---|
[36597] | 672 | /*
|
---|
| 673 | * If it's a console, we might bump into out of memory conditions in the
|
---|
| 674 | * WriteConsole call.
|
---|
[36367] | 675 | */
|
---|
| 676 | DWORD dwErr = GetLastError();
|
---|
| 677 | if (dwErr == ERROR_NOT_ENOUGH_MEMORY)
|
---|
| 678 | {
|
---|
| 679 | ULONG cbChunk = cbToWriteAdj / 2;
|
---|
| 680 | if (cbChunk > _32K)
|
---|
| 681 | cbChunk = _32K;
|
---|
| 682 | else
|
---|
| 683 | cbChunk = RT_ALIGN_32(cbChunk, 256);
|
---|
| 684 |
|
---|
| 685 | cbWritten = 0;
|
---|
[69536] | 686 | while (cbWritten < cbToWriteAdj)
|
---|
[36367] | 687 | {
|
---|
[83739] | 688 | ULONG cbToWriteNow = RT_MIN(cbChunk, cbToWriteAdj - cbWritten);
|
---|
[36367] | 689 | ULONG cbWrittenPart = 0;
|
---|
[83739] | 690 | if (!WriteFile((HANDLE)RTFileToNative(hFile), (const char *)pvBuf + cbWritten, cbToWriteNow, &cbWrittenPart, NULL))
|
---|
[36367] | 691 | {
|
---|
| 692 | /* If we failed because the buffer is too big, shrink it and
|
---|
| 693 | try again. */
|
---|
| 694 | dwErr = GetLastError();
|
---|
| 695 | if ( dwErr == ERROR_NOT_ENOUGH_MEMORY
|
---|
| 696 | && cbChunk > 8)
|
---|
| 697 | {
|
---|
| 698 | cbChunk /= 2;
|
---|
| 699 | continue;
|
---|
| 700 | }
|
---|
| 701 | int rc = RTErrConvertFromWin32(dwErr);
|
---|
[77231] | 702 | if (rc == VERR_DISK_FULL)
|
---|
[83739] | 703 | rc = rtFileWinCheckIfDiskReallyFull(hFile, RTFileTell(hFile) + cbToWriteNow);
|
---|
[36367] | 704 | return rc;
|
---|
| 705 | }
|
---|
| 706 | cbWritten += cbWrittenPart;
|
---|
| 707 |
|
---|
| 708 | /* Return if the caller can handle partial writes, otherwise try
|
---|
| 709 | write out everything. */
|
---|
| 710 | if (pcbWritten)
|
---|
| 711 | {
|
---|
[69536] | 712 | *pcbWritten = RT_MIN(cbWritten, cbToWriteAdj); /* paranoia^3 */
|
---|
[36367] | 713 | break;
|
---|
| 714 | }
|
---|
| 715 | if (cbWrittenPart == 0)
|
---|
| 716 | return VERR_WRITE_ERROR;
|
---|
| 717 | }
|
---|
| 718 | return VINF_SUCCESS;
|
---|
| 719 | }
|
---|
| 720 |
|
---|
| 721 | int rc = RTErrConvertFromWin32(dwErr);
|
---|
[77231] | 722 | if (rc == VERR_DISK_FULL)
|
---|
| 723 | rc = rtFileWinCheckIfDiskReallyFull(hFile, RTFileTell(hFile) + cbToWriteAdj);
|
---|
[1532] | 724 | return rc;
|
---|
[1] | 725 | }
|
---|
| 726 |
|
---|
| 727 |
|
---|
[77211] | 728 | RTDECL(int) RTFileWriteAt(RTFILE hFile, RTFOFF off, const void *pvBuf, size_t cbToWrite, size_t *pcbWritten)
|
---|
| 729 | {
|
---|
| 730 | ULONG const cbToWriteAdj = (ULONG)cbToWrite;
|
---|
| 731 | AssertReturn(cbToWriteAdj == cbToWrite, VERR_NUMBER_TOO_BIG);
|
---|
| 732 |
|
---|
| 733 | OVERLAPPED Overlapped;
|
---|
| 734 | Overlapped.Offset = (uint32_t)off;
|
---|
| 735 | Overlapped.OffsetHigh = (uint32_t)(off >> 32);
|
---|
| 736 | Overlapped.hEvent = NULL;
|
---|
| 737 | Overlapped.Internal = 0;
|
---|
| 738 | Overlapped.InternalHigh = 0;
|
---|
| 739 |
|
---|
| 740 | ULONG cbWritten = 0;
|
---|
| 741 | if (WriteFile((HANDLE)RTFileToNative(hFile), pvBuf, cbToWriteAdj, &cbWritten, &Overlapped))
|
---|
| 742 | {
|
---|
| 743 | if (pcbWritten)
|
---|
| 744 | /* Caller can handle partial writes. */
|
---|
| 745 | *pcbWritten = RT_MIN(cbWritten, cbToWriteAdj); /* paranoia^3 */
|
---|
| 746 | else
|
---|
| 747 | {
|
---|
| 748 | /* Caller expects everything to be written. */
|
---|
| 749 | while (cbWritten < cbToWriteAdj)
|
---|
| 750 | {
|
---|
| 751 | Overlapped.Offset = (uint32_t)(off + cbWritten);
|
---|
| 752 | Overlapped.OffsetHigh = (uint32_t)((off + cbWritten) >> 32);
|
---|
| 753 | Overlapped.hEvent = NULL;
|
---|
| 754 | Overlapped.Internal = 0;
|
---|
| 755 | Overlapped.InternalHigh = 0;
|
---|
| 756 |
|
---|
| 757 | ULONG cbWrittenPart = 0;
|
---|
| 758 | if (!WriteFile((HANDLE)RTFileToNative(hFile), (char*)pvBuf + cbWritten,
|
---|
| 759 | cbToWriteAdj - cbWritten, &cbWrittenPart, &Overlapped))
|
---|
| 760 | {
|
---|
| 761 | int rc = RTErrConvertFromWin32(GetLastError());
|
---|
[77231] | 762 | if (rc == VERR_DISK_FULL)
|
---|
| 763 | rc = rtFileWinCheckIfDiskReallyFull(hFile, off + cbToWriteAdj);
|
---|
[77211] | 764 | return rc;
|
---|
| 765 | }
|
---|
| 766 | if (cbWrittenPart == 0)
|
---|
| 767 | return VERR_WRITE_ERROR;
|
---|
| 768 | cbWritten += cbWrittenPart;
|
---|
| 769 | }
|
---|
| 770 | }
|
---|
| 771 | return VINF_SUCCESS;
|
---|
| 772 | }
|
---|
| 773 |
|
---|
| 774 | int rc = RTErrConvertFromWin32(GetLastError());
|
---|
[77231] | 775 | if (rc == VERR_DISK_FULL)
|
---|
| 776 | rc = rtFileWinCheckIfDiskReallyFull(hFile, off + cbToWriteAdj);
|
---|
[77211] | 777 | return rc;
|
---|
| 778 | }
|
---|
| 779 |
|
---|
| 780 |
|
---|
[37596] | 781 | RTR3DECL(int) RTFileFlush(RTFILE hFile)
|
---|
[1] | 782 | {
|
---|
[37596] | 783 | if (!FlushFileBuffers((HANDLE)RTFileToNative(hFile)))
|
---|
[1] | 784 | {
|
---|
[27388] | 785 | int rc = GetLastError();
|
---|
[1] | 786 | Log(("FlushFileBuffers failed with %d\n", rc));
|
---|
| 787 | return RTErrConvertFromWin32(rc);
|
---|
| 788 | }
|
---|
| 789 | return VINF_SUCCESS;
|
---|
| 790 | }
|
---|
| 791 |
|
---|
[82835] | 792 | #if 1
|
---|
[1] | 793 |
|
---|
[82834] | 794 | /**
|
---|
[82835] | 795 | * Checks the the two handles refers to the same file.
|
---|
| 796 | *
|
---|
| 797 | * @returns true if the same file, false if different ones or invalid handles.
|
---|
| 798 | * @param hFile1 Handle \#1.
|
---|
| 799 | * @param hFile2 Handle \#2.
|
---|
| 800 | */
|
---|
| 801 | static bool rtFileIsSame(HANDLE hFile1, HANDLE hFile2)
|
---|
| 802 | {
|
---|
| 803 | /*
|
---|
| 804 | * We retry in case CreationTime or the Object ID is being modified and there
|
---|
| 805 | * aren't any IndexNumber (file ID) on this kind of file system.
|
---|
| 806 | */
|
---|
| 807 | for (uint32_t iTries = 0; iTries < 3; iTries++)
|
---|
| 808 | {
|
---|
| 809 | /*
|
---|
| 810 | * Fetch data to compare (being a little lazy here).
|
---|
| 811 | */
|
---|
| 812 | struct
|
---|
| 813 | {
|
---|
| 814 | HANDLE hFile;
|
---|
| 815 | NTSTATUS rcObjId;
|
---|
| 816 | FILE_OBJECTID_INFORMATION ObjId;
|
---|
| 817 | FILE_ALL_INFORMATION All;
|
---|
| 818 | FILE_FS_VOLUME_INFORMATION Vol;
|
---|
| 819 | } auData[2];
|
---|
| 820 | auData[0].hFile = hFile1;
|
---|
| 821 | auData[1].hFile = hFile2;
|
---|
| 822 |
|
---|
| 823 | for (uintptr_t i = 0; i < RT_ELEMENTS(auData); i++)
|
---|
| 824 | {
|
---|
| 825 | RT_ZERO(auData[i].ObjId);
|
---|
| 826 | IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
|
---|
| 827 | auData[i].rcObjId = NtQueryInformationFile(auData[i].hFile, &Ios, &auData[i].ObjId, sizeof(auData[i].ObjId),
|
---|
| 828 | FileObjectIdInformation);
|
---|
| 829 |
|
---|
| 830 | RT_ZERO(auData[i].All);
|
---|
| 831 | RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
|
---|
| 832 | NTSTATUS rcNt = NtQueryInformationFile(auData[i].hFile, &Ios, &auData[i].All, sizeof(auData[i].All),
|
---|
| 833 | FileAllInformation);
|
---|
| 834 | AssertReturn(rcNt == STATUS_BUFFER_OVERFLOW /* insufficient space for name info */ || NT_SUCCESS(rcNt), false);
|
---|
| 835 |
|
---|
| 836 | union
|
---|
| 837 | {
|
---|
| 838 | FILE_FS_VOLUME_INFORMATION Info;
|
---|
| 839 | uint8_t abBuf[sizeof(FILE_FS_VOLUME_INFORMATION) + 4096];
|
---|
| 840 | } uVol;
|
---|
| 841 | RT_ZERO(uVol.Info);
|
---|
| 842 | RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
|
---|
| 843 | rcNt = NtQueryVolumeInformationFile(auData[i].hFile, &Ios, &uVol, sizeof(uVol), FileFsVolumeInformation);
|
---|
| 844 | if (NT_SUCCESS(rcNt))
|
---|
| 845 | auData[i].Vol = uVol.Info;
|
---|
| 846 | else
|
---|
| 847 | RT_ZERO(auData[i].Vol);
|
---|
| 848 | }
|
---|
| 849 |
|
---|
| 850 | /*
|
---|
| 851 | * Compare it.
|
---|
| 852 | */
|
---|
| 853 | if ( auData[0].All.StandardInformation.Directory
|
---|
| 854 | == auData[1].All.StandardInformation.Directory)
|
---|
| 855 | { /* likely */ }
|
---|
| 856 | else
|
---|
| 857 | break;
|
---|
| 858 |
|
---|
| 859 | if ( (auData[0].All.BasicInformation.FileAttributes & (FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_DEVICE | FILE_ATTRIBUTE_REPARSE_POINT))
|
---|
| 860 | == (auData[1].All.BasicInformation.FileAttributes & (FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_DEVICE | FILE_ATTRIBUTE_REPARSE_POINT)))
|
---|
| 861 | { /* likely */ }
|
---|
| 862 | else
|
---|
| 863 | break;
|
---|
| 864 |
|
---|
| 865 | if ( auData[0].Vol.VolumeSerialNumber
|
---|
| 866 | == auData[1].Vol.VolumeSerialNumber)
|
---|
| 867 | { /* likely */ }
|
---|
| 868 | else
|
---|
| 869 | break;
|
---|
| 870 |
|
---|
| 871 | if ( auData[0].All.InternalInformation.IndexNumber.QuadPart
|
---|
| 872 | == auData[1].All.InternalInformation.IndexNumber.QuadPart)
|
---|
| 873 | { /* likely */ }
|
---|
| 874 | else
|
---|
| 875 | break;
|
---|
| 876 |
|
---|
| 877 | if ( !NT_SUCCESS(auData[0].rcObjId)
|
---|
| 878 | || memcmp(&auData[0].ObjId, &auData[1].ObjId, RT_UOFFSETOF(FILE_OBJECTID_INFORMATION, ExtendedInfo)) == 0)
|
---|
| 879 | {
|
---|
| 880 | if ( auData[0].All.BasicInformation.CreationTime.QuadPart
|
---|
| 881 | == auData[1].All.BasicInformation.CreationTime.QuadPart)
|
---|
| 882 | return true;
|
---|
| 883 | }
|
---|
| 884 | }
|
---|
| 885 |
|
---|
| 886 | return false;
|
---|
| 887 | }
|
---|
| 888 |
|
---|
| 889 |
|
---|
| 890 | /**
|
---|
[82834] | 891 | * If @a hFile is opened in append mode, try return a handle with
|
---|
| 892 | * FILE_WRITE_DATA permissions.
|
---|
| 893 | *
|
---|
| 894 | * @returns Duplicate handle.
|
---|
| 895 | * @param hFile The NT handle to check & duplicate.
|
---|
| 896 | *
|
---|
| 897 | * @todo It would be much easier to implement this by not dropping the
|
---|
| 898 | * FILE_WRITE_DATA access and instead have the RTFileWrite APIs
|
---|
| 899 | * enforce the appending. That will require keeping additional
|
---|
| 900 | * information along side the handle (instance structure). However, on
|
---|
| 901 | * windows you can grant append permissions w/o giving people access to
|
---|
| 902 | * overwrite existing data, so the RTFileOpenEx code would have to deal
|
---|
| 903 | * with those kinds of STATUS_ACCESS_DENIED too then.
|
---|
| 904 | */
|
---|
| 905 | static HANDLE rtFileReOpenAppendOnlyWithFullWriteAccess(HANDLE hFile)
|
---|
| 906 | {
|
---|
| 907 | OBJECT_BASIC_INFORMATION BasicInfo = {0};
|
---|
| 908 | ULONG cbActual = 0;
|
---|
| 909 | NTSTATUS rcNt = NtQueryObject(hFile, ObjectBasicInformation, &BasicInfo, sizeof(BasicInfo), &cbActual);
|
---|
| 910 | if (NT_SUCCESS(rcNt))
|
---|
| 911 | {
|
---|
| 912 | if ((BasicInfo.GrantedAccess & (FILE_APPEND_DATA | FILE_WRITE_DATA)) == FILE_APPEND_DATA)
|
---|
| 913 | {
|
---|
| 914 | /*
|
---|
| 915 | * We cannot use NtDuplicateObject here as it is not possible to
|
---|
| 916 | * upgrade the access on files, only making it more strict. So,
|
---|
| 917 | * query the path and re-open it (we could do by file/object/whatever
|
---|
| 918 | * id too, but that may not work with all file systems).
|
---|
| 919 | */
|
---|
| 920 | for (uint32_t i = 0; i < 16; i++)
|
---|
| 921 | {
|
---|
| 922 | UNICODE_STRING NtName;
|
---|
| 923 | int rc = RTNtPathFromHandle(&NtName, hFile, 0);
|
---|
| 924 | AssertRCReturn(rc, INVALID_HANDLE_VALUE);
|
---|
| 925 |
|
---|
| 926 | HANDLE hDupFile = RTNT_INVALID_HANDLE_VALUE;
|
---|
| 927 | IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
|
---|
| 928 | OBJECT_ATTRIBUTES ObjAttr;
|
---|
| 929 | InitializeObjectAttributes(&ObjAttr, &NtName, BasicInfo.Attributes & ~OBJ_INHERIT, NULL, NULL);
|
---|
| 930 |
|
---|
[83739] | 931 | rcNt = NtCreateFile(&hDupFile,
|
---|
| 932 | BasicInfo.GrantedAccess | FILE_WRITE_DATA,
|
---|
| 933 | &ObjAttr,
|
---|
| 934 | &Ios,
|
---|
| 935 | NULL /* AllocationSize*/,
|
---|
| 936 | FILE_ATTRIBUTE_NORMAL,
|
---|
| 937 | FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
|
---|
| 938 | FILE_OPEN,
|
---|
| 939 | FILE_OPEN_FOR_BACKUP_INTENT /*??*/,
|
---|
| 940 | NULL /*EaBuffer*/,
|
---|
| 941 | 0 /*EaLength*/);
|
---|
[82834] | 942 | RTUtf16Free(NtName.Buffer);
|
---|
| 943 | if (NT_SUCCESS(rcNt))
|
---|
| 944 | {
|
---|
[82835] | 945 | /*
|
---|
| 946 | * Check that we've opened the same file.
|
---|
| 947 | */
|
---|
| 948 | if (rtFileIsSame(hFile, hDupFile))
|
---|
| 949 | return hDupFile;
|
---|
| 950 | NtClose(hDupFile);
|
---|
[82834] | 951 | }
|
---|
| 952 | }
|
---|
[82835] | 953 | AssertFailed();
|
---|
[82834] | 954 | }
|
---|
| 955 | }
|
---|
| 956 | return INVALID_HANDLE_VALUE;
|
---|
| 957 | }
|
---|
[82835] | 958 |
|
---|
[82834] | 959 | #endif
|
---|
| 960 |
|
---|
[77231] | 961 | RTR3DECL(int) RTFileSetSize(RTFILE hFile, uint64_t cbSize)
|
---|
[1] | 962 | {
|
---|
[82836] | 963 | #if 1
|
---|
[82834] | 964 | HANDLE hNtFile = (HANDLE)RTFileToNative(hFile);
|
---|
| 965 | HANDLE hDupFile = INVALID_HANDLE_VALUE;
|
---|
| 966 | union
|
---|
| 967 | {
|
---|
| 968 | FILE_END_OF_FILE_INFORMATION Eof;
|
---|
| 969 | FILE_ALLOCATION_INFORMATION Alloc;
|
---|
| 970 | } uInfo;
|
---|
| 971 |
|
---|
[1] | 972 | /*
|
---|
[82837] | 973 | * Change the EOF marker.
|
---|
| 974 | *
|
---|
| 975 | * HACK ALERT! If the file was opened in RTFILE_O_APPEND mode, we will have
|
---|
| 976 | * to re-open it with FILE_WRITE_DATA access to get the job done.
|
---|
| 977 | * This how ftruncate on a unixy system would work but not how
|
---|
| 978 | * it is done on Windows where appending is a separate permission
|
---|
| 979 | * rather than just a write modifier, making this hack totally wrong.
|
---|
[82834] | 980 | */
|
---|
[82837] | 981 | /** @todo The right way to fix this is either to add a RTFileSetSizeEx function
|
---|
| 982 | * for specifically requesting the unixy behaviour, or add an additional
|
---|
| 983 | * flag to RTFileOpen[Ex] to request the unixy append behaviour there.
|
---|
| 984 | * The latter would require saving the open flags in a instance data
|
---|
| 985 | * structure, which is a bit of a risky move, though something we should
|
---|
| 986 | * do in 6.2 (or later).
|
---|
| 987 | *
|
---|
| 988 | * Note! Because handle interitance, it is not realyan option to
|
---|
| 989 | * always use FILE_WRITE_DATA and implement the RTFILE_O_APPEND
|
---|
| 990 | * bits in RTFileWrite and friends. Besides, it's not like
|
---|
| 991 | * RTFILE_O_APPEND is so clearly defined anyway - see
|
---|
| 992 | * RTFileWriteAt.
|
---|
| 993 | */
|
---|
[82834] | 994 | IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
|
---|
| 995 | uInfo.Eof.EndOfFile.QuadPart = cbSize;
|
---|
| 996 | NTSTATUS rcNt = NtSetInformationFile(hNtFile, &Ios, &uInfo.Eof, sizeof(uInfo.Eof), FileEndOfFileInformation);
|
---|
| 997 | if (rcNt == STATUS_ACCESS_DENIED)
|
---|
| 998 | {
|
---|
| 999 | hDupFile = rtFileReOpenAppendOnlyWithFullWriteAccess(hNtFile);
|
---|
| 1000 | if (hDupFile != INVALID_HANDLE_VALUE)
|
---|
| 1001 | {
|
---|
| 1002 | hNtFile = hDupFile;
|
---|
| 1003 | uInfo.Eof.EndOfFile.QuadPart = cbSize;
|
---|
| 1004 | rcNt = NtSetInformationFile(hNtFile, &Ios, &uInfo.Eof, sizeof(uInfo.Eof), FileEndOfFileInformation);
|
---|
| 1005 | }
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 | if (NT_SUCCESS(rcNt))
|
---|
| 1009 | {
|
---|
| 1010 | /*
|
---|
| 1011 | * Change the allocation.
|
---|
| 1012 | */
|
---|
| 1013 | uInfo.Alloc.AllocationSize.QuadPart = cbSize;
|
---|
| 1014 | rcNt = NtSetInformationFile(hNtFile, &Ios, &uInfo.Eof, sizeof(uInfo.Alloc), FileAllocationInformation);
|
---|
| 1015 | }
|
---|
| 1016 |
|
---|
| 1017 | /*
|
---|
| 1018 | * Close the temporary file handle:
|
---|
| 1019 | */
|
---|
| 1020 | if (hDupFile != INVALID_HANDLE_VALUE)
|
---|
| 1021 | NtClose(hDupFile);
|
---|
| 1022 |
|
---|
[99828] | 1023 | if (NT_SUCCESS(rcNt))
|
---|
[82834] | 1024 | return VINF_SUCCESS;
|
---|
| 1025 | return RTErrConvertFromNtStatus(rcNt);
|
---|
| 1026 |
|
---|
| 1027 | #else /* this version of the code will fail to truncate files when RTFILE_O_APPEND is in effect, which isn't what we want... */
|
---|
| 1028 | /*
|
---|
[1] | 1029 | * Get current file pointer.
|
---|
| 1030 | */
|
---|
| 1031 | int rc;
|
---|
| 1032 | uint64_t offCurrent;
|
---|
[37596] | 1033 | if (MySetFilePointer(hFile, 0, &offCurrent, FILE_CURRENT))
|
---|
[1] | 1034 | {
|
---|
| 1035 | /*
|
---|
| 1036 | * Set new file pointer.
|
---|
| 1037 | */
|
---|
[37596] | 1038 | if (MySetFilePointer(hFile, cbSize, NULL, FILE_BEGIN))
|
---|
[1] | 1039 | {
|
---|
[33540] | 1040 | /* set file pointer */
|
---|
[37596] | 1041 | if (SetEndOfFile((HANDLE)RTFileToNative(hFile)))
|
---|
[1] | 1042 | {
|
---|
| 1043 | /*
|
---|
| 1044 | * Restore file pointer and return.
|
---|
| 1045 | * If the old pointer was beyond the new file end, ignore failure.
|
---|
| 1046 | */
|
---|
[37596] | 1047 | if ( MySetFilePointer(hFile, offCurrent, NULL, FILE_BEGIN)
|
---|
[1] | 1048 | || offCurrent > cbSize)
|
---|
| 1049 | return VINF_SUCCESS;
|
---|
| 1050 | }
|
---|
| 1051 |
|
---|
| 1052 | /*
|
---|
[33540] | 1053 | * Failed, try restoring the file pointer.
|
---|
[1] | 1054 | */
|
---|
| 1055 | rc = GetLastError();
|
---|
[37596] | 1056 | MySetFilePointer(hFile, offCurrent, NULL, FILE_BEGIN);
|
---|
[77231] | 1057 |
|
---|
| 1058 | if (rc == ERROR_DISK_FULL)
|
---|
| 1059 | return rtFileWinCheckIfDiskReallyFull(hFile, cbSize);
|
---|
[1] | 1060 | }
|
---|
| 1061 | else
|
---|
| 1062 | rc = GetLastError();
|
---|
| 1063 | }
|
---|
| 1064 | else
|
---|
| 1065 | rc = GetLastError();
|
---|
| 1066 |
|
---|
| 1067 | return RTErrConvertFromWin32(rc);
|
---|
[82834] | 1068 | #endif
|
---|
[1] | 1069 | }
|
---|
| 1070 |
|
---|
| 1071 |
|
---|
[80585] | 1072 | RTR3DECL(int) RTFileQuerySize(RTFILE hFile, uint64_t *pcbSize)
|
---|
[1] | 1073 | {
|
---|
[39025] | 1074 | /*
|
---|
| 1075 | * GetFileSize works for most handles.
|
---|
| 1076 | */
|
---|
[1] | 1077 | ULARGE_INTEGER Size;
|
---|
[37596] | 1078 | Size.LowPart = GetFileSize((HANDLE)RTFileToNative(hFile), &Size.HighPart);
|
---|
[1] | 1079 | if (Size.LowPart != INVALID_FILE_SIZE)
|
---|
| 1080 | {
|
---|
| 1081 | *pcbSize = Size.QuadPart;
|
---|
[39027] | 1082 | return VINF_SUCCESS;
|
---|
[1] | 1083 | }
|
---|
[39027] | 1084 | int rc = RTErrConvertFromWin32(GetLastError());
|
---|
| 1085 |
|
---|
[39025] | 1086 | /*
|
---|
[39027] | 1087 | * Could it be a volume or a disk?
|
---|
[39025] | 1088 | */
|
---|
| 1089 | DISK_GEOMETRY DriveGeo;
|
---|
| 1090 | DWORD cbDriveGeo;
|
---|
| 1091 | if (DeviceIoControl((HANDLE)RTFileToNative(hFile),
|
---|
| 1092 | IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0,
|
---|
| 1093 | &DriveGeo, sizeof(DriveGeo), &cbDriveGeo, NULL))
|
---|
| 1094 | {
|
---|
| 1095 | if ( DriveGeo.MediaType == FixedMedia
|
---|
| 1096 | || DriveGeo.MediaType == RemovableMedia)
|
---|
| 1097 | {
|
---|
| 1098 | *pcbSize = DriveGeo.Cylinders.QuadPart
|
---|
| 1099 | * DriveGeo.TracksPerCylinder
|
---|
| 1100 | * DriveGeo.SectorsPerTrack
|
---|
| 1101 | * DriveGeo.BytesPerSector;
|
---|
[1] | 1102 |
|
---|
[39025] | 1103 | GET_LENGTH_INFORMATION DiskLenInfo;
|
---|
| 1104 | DWORD Ignored;
|
---|
| 1105 | if (DeviceIoControl((HANDLE)RTFileToNative(hFile),
|
---|
| 1106 | IOCTL_DISK_GET_LENGTH_INFO, NULL, 0,
|
---|
| 1107 | &DiskLenInfo, sizeof(DiskLenInfo), &Ignored, (LPOVERLAPPED)NULL))
|
---|
| 1108 | {
|
---|
| 1109 | /* IOCTL_DISK_GET_LENGTH_INFO is supported -- override cbSize. */
|
---|
| 1110 | *pcbSize = DiskLenInfo.Length.QuadPart;
|
---|
| 1111 | }
|
---|
| 1112 | return VINF_SUCCESS;
|
---|
| 1113 | }
|
---|
| 1114 | }
|
---|
| 1115 |
|
---|
| 1116 | /*
|
---|
| 1117 | * Return the GetFileSize result if not a volume/disk.
|
---|
| 1118 | */
|
---|
| 1119 | return rc;
|
---|
[1] | 1120 | }
|
---|
| 1121 |
|
---|
| 1122 |
|
---|
[80585] | 1123 | RTR3DECL(int) RTFileQueryMaxSizeEx(RTFILE hFile, PRTFOFF pcbMax)
|
---|
[8913] | 1124 | {
|
---|
| 1125 | /** @todo r=bird:
|
---|
[39025] | 1126 | * We might have to make this code OS version specific... In the worse
|
---|
| 1127 | * case, we'll have to try GetVolumeInformationByHandle on vista and fall
|
---|
| 1128 | * back on NtQueryVolumeInformationFile(,,,, FileFsAttributeInformation)
|
---|
| 1129 | * else where, and check for known file system names. (For LAN shares we'll
|
---|
| 1130 | * have to figure out the remote file system.) */
|
---|
[62584] | 1131 | RT_NOREF_PV(hFile); RT_NOREF_PV(pcbMax);
|
---|
[8913] | 1132 | return VERR_NOT_IMPLEMENTED;
|
---|
| 1133 | }
|
---|
| 1134 |
|
---|
| 1135 |
|
---|
[37596] | 1136 | RTR3DECL(bool) RTFileIsValid(RTFILE hFile)
|
---|
[1] | 1137 | {
|
---|
[37596] | 1138 | if (hFile != NIL_RTFILE)
|
---|
[1] | 1139 | {
|
---|
[37596] | 1140 | DWORD dwType = GetFileType((HANDLE)RTFileToNative(hFile));
|
---|
[1] | 1141 | switch (dwType)
|
---|
| 1142 | {
|
---|
| 1143 | case FILE_TYPE_CHAR:
|
---|
| 1144 | case FILE_TYPE_DISK:
|
---|
| 1145 | case FILE_TYPE_PIPE:
|
---|
| 1146 | case FILE_TYPE_REMOTE:
|
---|
| 1147 | return true;
|
---|
| 1148 |
|
---|
| 1149 | case FILE_TYPE_UNKNOWN:
|
---|
| 1150 | if (GetLastError() == NO_ERROR)
|
---|
| 1151 | return true;
|
---|
| 1152 | break;
|
---|
[55348] | 1153 |
|
---|
| 1154 | default:
|
---|
| 1155 | break;
|
---|
[1] | 1156 | }
|
---|
| 1157 | }
|
---|
| 1158 | return false;
|
---|
| 1159 | }
|
---|
| 1160 |
|
---|
| 1161 |
|
---|
| 1162 | #define LOW_DWORD(u64) ((DWORD)u64)
|
---|
| 1163 | #define HIGH_DWORD(u64) (((DWORD *)&u64)[1])
|
---|
| 1164 |
|
---|
[37596] | 1165 | RTR3DECL(int) RTFileLock(RTFILE hFile, unsigned fLock, int64_t offLock, uint64_t cbLock)
|
---|
[1] | 1166 | {
|
---|
| 1167 | Assert(offLock >= 0);
|
---|
| 1168 |
|
---|
| 1169 | /* Check arguments. */
|
---|
| 1170 | if (fLock & ~RTFILE_LOCK_MASK)
|
---|
| 1171 | {
|
---|
| 1172 | AssertMsgFailed(("Invalid fLock=%08X\n", fLock));
|
---|
| 1173 | return VERR_INVALID_PARAMETER;
|
---|
| 1174 | }
|
---|
| 1175 |
|
---|
| 1176 | /* Prepare flags. */
|
---|
| 1177 | Assert(RTFILE_LOCK_WRITE);
|
---|
| 1178 | DWORD dwFlags = (fLock & RTFILE_LOCK_WRITE) ? LOCKFILE_EXCLUSIVE_LOCK : 0;
|
---|
| 1179 | Assert(RTFILE_LOCK_WAIT);
|
---|
| 1180 | if (!(fLock & RTFILE_LOCK_WAIT))
|
---|
| 1181 | dwFlags |= LOCKFILE_FAIL_IMMEDIATELY;
|
---|
| 1182 |
|
---|
| 1183 | /* Windows structure. */
|
---|
| 1184 | OVERLAPPED Overlapped;
|
---|
| 1185 | memset(&Overlapped, 0, sizeof(Overlapped));
|
---|
| 1186 | Overlapped.Offset = LOW_DWORD(offLock);
|
---|
| 1187 | Overlapped.OffsetHigh = HIGH_DWORD(offLock);
|
---|
| 1188 |
|
---|
| 1189 | /* Note: according to Microsoft, LockFileEx API call is available starting from NT 3.5 */
|
---|
[37596] | 1190 | if (LockFileEx((HANDLE)RTFileToNative(hFile), dwFlags, 0, LOW_DWORD(cbLock), HIGH_DWORD(cbLock), &Overlapped))
|
---|
[1] | 1191 | return VINF_SUCCESS;
|
---|
| 1192 |
|
---|
| 1193 | return RTErrConvertFromWin32(GetLastError());
|
---|
| 1194 | }
|
---|
| 1195 |
|
---|
| 1196 |
|
---|
[37596] | 1197 | RTR3DECL(int) RTFileChangeLock(RTFILE hFile, unsigned fLock, int64_t offLock, uint64_t cbLock)
|
---|
[1] | 1198 | {
|
---|
| 1199 | Assert(offLock >= 0);
|
---|
| 1200 |
|
---|
| 1201 | /* Check arguments. */
|
---|
| 1202 | if (fLock & ~RTFILE_LOCK_MASK)
|
---|
| 1203 | {
|
---|
| 1204 | AssertMsgFailed(("Invalid fLock=%08X\n", fLock));
|
---|
| 1205 | return VERR_INVALID_PARAMETER;
|
---|
| 1206 | }
|
---|
| 1207 |
|
---|
| 1208 | /* Remove old lock. */
|
---|
[37596] | 1209 | int rc = RTFileUnlock(hFile, offLock, cbLock);
|
---|
[1] | 1210 | if (RT_FAILURE(rc))
|
---|
| 1211 | return rc;
|
---|
| 1212 |
|
---|
| 1213 | /* Set new lock. */
|
---|
[37596] | 1214 | rc = RTFileLock(hFile, fLock, offLock, cbLock);
|
---|
[1] | 1215 | if (RT_SUCCESS(rc))
|
---|
| 1216 | return rc;
|
---|
| 1217 |
|
---|
| 1218 | /* Try to restore old lock. */
|
---|
| 1219 | unsigned fLockOld = (fLock & RTFILE_LOCK_WRITE) ? fLock & ~RTFILE_LOCK_WRITE : fLock | RTFILE_LOCK_WRITE;
|
---|
[37596] | 1220 | rc = RTFileLock(hFile, fLockOld, offLock, cbLock);
|
---|
[1] | 1221 | if (RT_SUCCESS(rc))
|
---|
| 1222 | return VERR_FILE_LOCK_VIOLATION;
|
---|
| 1223 | else
|
---|
| 1224 | return VERR_FILE_LOCK_LOST;
|
---|
| 1225 | }
|
---|
| 1226 |
|
---|
| 1227 |
|
---|
[37596] | 1228 | RTR3DECL(int) RTFileUnlock(RTFILE hFile, int64_t offLock, uint64_t cbLock)
|
---|
[1] | 1229 | {
|
---|
| 1230 | Assert(offLock >= 0);
|
---|
| 1231 |
|
---|
[37596] | 1232 | if (UnlockFile((HANDLE)RTFileToNative(hFile),
|
---|
| 1233 | LOW_DWORD(offLock), HIGH_DWORD(offLock),
|
---|
| 1234 | LOW_DWORD(cbLock), HIGH_DWORD(cbLock)))
|
---|
[1] | 1235 | return VINF_SUCCESS;
|
---|
| 1236 |
|
---|
| 1237 | return RTErrConvertFromWin32(GetLastError());
|
---|
| 1238 | }
|
---|
| 1239 |
|
---|
| 1240 |
|
---|
| 1241 |
|
---|
[37596] | 1242 | RTR3DECL(int) RTFileQueryInfo(RTFILE hFile, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs)
|
---|
[1] | 1243 | {
|
---|
| 1244 | /*
|
---|
| 1245 | * Validate input.
|
---|
| 1246 | */
|
---|
[37596] | 1247 | if (hFile == NIL_RTFILE)
|
---|
[1] | 1248 | {
|
---|
[37596] | 1249 | AssertMsgFailed(("Invalid hFile=%RTfile\n", hFile));
|
---|
[1] | 1250 | return VERR_INVALID_PARAMETER;
|
---|
| 1251 | }
|
---|
| 1252 | if (!pObjInfo)
|
---|
| 1253 | {
|
---|
| 1254 | AssertMsgFailed(("Invalid pObjInfo=%p\n", pObjInfo));
|
---|
| 1255 | return VERR_INVALID_PARAMETER;
|
---|
| 1256 | }
|
---|
| 1257 | if ( enmAdditionalAttribs < RTFSOBJATTRADD_NOTHING
|
---|
| 1258 | || enmAdditionalAttribs > RTFSOBJATTRADD_LAST)
|
---|
| 1259 | {
|
---|
| 1260 | AssertMsgFailed(("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs));
|
---|
| 1261 | return VERR_INVALID_PARAMETER;
|
---|
| 1262 | }
|
---|
| 1263 |
|
---|
| 1264 | /*
|
---|
| 1265 | * Query file info.
|
---|
| 1266 | */
|
---|
[57597] | 1267 | HANDLE hHandle = (HANDLE)RTFileToNative(hFile);
|
---|
[75544] | 1268 | #if 1
|
---|
| 1269 | uint64_t auBuf[168 / sizeof(uint64_t)]; /* Missing FILE_ALL_INFORMATION here. */
|
---|
| 1270 | int rc = rtPathNtQueryInfoFromHandle(hFile, auBuf, sizeof(auBuf), pObjInfo, enmAdditionalAttribs, NULL, 0);
|
---|
| 1271 | if (RT_SUCCESS(rc))
|
---|
| 1272 | return rc;
|
---|
[57597] | 1273 |
|
---|
[75544] | 1274 | /*
|
---|
| 1275 | * Console I/O handles make trouble here. On older windows versions they
|
---|
| 1276 | * end up with ERROR_INVALID_HANDLE when handed to the above API, while on
|
---|
| 1277 | * more recent ones they cause different errors to appear.
|
---|
| 1278 | *
|
---|
| 1279 | * Thus, we must ignore the latter and doubly verify invalid handle claims.
|
---|
| 1280 | * We use the undocumented VerifyConsoleIoHandle to do this, falling back on
|
---|
| 1281 | * GetFileType should it not be there.
|
---|
| 1282 | */
|
---|
[75651] | 1283 | if ( rc == VERR_INVALID_HANDLE
|
---|
| 1284 | || rc == VERR_ACCESS_DENIED
|
---|
| 1285 | || rc == VERR_UNEXPECTED_FS_OBJ_TYPE)
|
---|
[75544] | 1286 | {
|
---|
| 1287 | static PFNVERIFYCONSOLEIOHANDLE s_pfnVerifyConsoleIoHandle = NULL;
|
---|
| 1288 | static bool volatile s_fInitialized = false;
|
---|
| 1289 | PFNVERIFYCONSOLEIOHANDLE pfnVerifyConsoleIoHandle;
|
---|
| 1290 | if (s_fInitialized)
|
---|
| 1291 | pfnVerifyConsoleIoHandle = s_pfnVerifyConsoleIoHandle;
|
---|
| 1292 | else
|
---|
| 1293 | {
|
---|
| 1294 | pfnVerifyConsoleIoHandle = (PFNVERIFYCONSOLEIOHANDLE)RTLdrGetSystemSymbol("kernel32.dll", "VerifyConsoleIoHandle");
|
---|
| 1295 | ASMAtomicWriteBool(&s_fInitialized, true);
|
---|
| 1296 | }
|
---|
| 1297 | if ( pfnVerifyConsoleIoHandle
|
---|
| 1298 | ? !pfnVerifyConsoleIoHandle(hHandle)
|
---|
| 1299 | : GetFileType(hHandle) == FILE_TYPE_UNKNOWN && GetLastError() != NO_ERROR)
|
---|
| 1300 | return VERR_INVALID_HANDLE;
|
---|
| 1301 | }
|
---|
| 1302 | /*
|
---|
[75651] | 1303 | * On Windows 10 and (hopefully) 8.1 we get ERROR_INVALID_FUNCTION with console
|
---|
| 1304 | * I/O handles and null device handles. We must ignore these just like the
|
---|
| 1305 | * above invalid handle error.
|
---|
[75544] | 1306 | */
|
---|
| 1307 | else if (rc != VERR_INVALID_FUNCTION && rc != VERR_IO_BAD_COMMAND)
|
---|
| 1308 | return rc;
|
---|
[75536] | 1309 |
|
---|
[75544] | 1310 | RT_ZERO(*pObjInfo);
|
---|
| 1311 | pObjInfo->Attr.enmAdditional = enmAdditionalAttribs;
|
---|
[79155] | 1312 | pObjInfo->Attr.fMode = rtFsModeFromDos(RTFS_DOS_NT_DEVICE, "", 0, 0, 0);
|
---|
[75544] | 1313 | return VINF_SUCCESS;
|
---|
| 1314 | #else
|
---|
| 1315 |
|
---|
[1] | 1316 | BY_HANDLE_FILE_INFORMATION Data;
|
---|
[57597] | 1317 | if (!GetFileInformationByHandle(hHandle, &Data))
|
---|
[36123] | 1318 | {
|
---|
[57620] | 1319 | /*
|
---|
| 1320 | * Console I/O handles make trouble here. On older windows versions they
|
---|
| 1321 | * end up with ERROR_INVALID_HANDLE when handed to the above API, while on
|
---|
| 1322 | * more recent ones they cause different errors to appear.
|
---|
| 1323 | *
|
---|
| 1324 | * Thus, we must ignore the latter and doubly verify invalid handle claims.
|
---|
| 1325 | * We use the undocumented VerifyConsoleIoHandle to do this, falling back on
|
---|
| 1326 | * GetFileType should it not be there.
|
---|
| 1327 | */
|
---|
[36123] | 1328 | DWORD dwErr = GetLastError();
|
---|
[55596] | 1329 | if (dwErr == ERROR_INVALID_HANDLE)
|
---|
[57597] | 1330 | {
|
---|
[57620] | 1331 | static PFNVERIFYCONSOLEIOHANDLE s_pfnVerifyConsoleIoHandle = NULL;
|
---|
| 1332 | static bool volatile s_fInitialized = false;
|
---|
| 1333 | PFNVERIFYCONSOLEIOHANDLE pfnVerifyConsoleIoHandle;
|
---|
[57621] | 1334 | if (s_fInitialized)
|
---|
[57620] | 1335 | pfnVerifyConsoleIoHandle = s_pfnVerifyConsoleIoHandle;
|
---|
| 1336 | else
|
---|
[57597] | 1337 | {
|
---|
[57622] | 1338 | pfnVerifyConsoleIoHandle = (PFNVERIFYCONSOLEIOHANDLE)RTLdrGetSystemSymbol("kernel32.dll", "VerifyConsoleIoHandle");
|
---|
[57620] | 1339 | ASMAtomicWriteBool(&s_fInitialized, true);
|
---|
[57597] | 1340 | }
|
---|
[57620] | 1341 | if ( pfnVerifyConsoleIoHandle
|
---|
| 1342 | ? !pfnVerifyConsoleIoHandle(hHandle)
|
---|
| 1343 | : GetFileType(hHandle) == FILE_TYPE_UNKNOWN && GetLastError() != NO_ERROR)
|
---|
| 1344 | return VERR_INVALID_HANDLE;
|
---|
| 1345 | }
|
---|
[57634] | 1346 | /*
|
---|
| 1347 | * On Windows 10 and (hopefully) 8.1 we get ERROR_INVALID_FUNCTION with console I/O
|
---|
| 1348 | * handles. We must ignore these just like the above invalid handle error.
|
---|
| 1349 | */
|
---|
| 1350 | else if (dwErr != ERROR_INVALID_FUNCTION)
|
---|
[57620] | 1351 | return RTErrConvertFromWin32(dwErr);
|
---|
[57597] | 1352 |
|
---|
[55596] | 1353 | RT_ZERO(Data);
|
---|
| 1354 | Data.dwFileAttributes = RTFS_DOS_NT_DEVICE;
|
---|
[36123] | 1355 | }
|
---|
[1] | 1356 |
|
---|
| 1357 | /*
|
---|
| 1358 | * Setup the returned data.
|
---|
| 1359 | */
|
---|
| 1360 | pObjInfo->cbObject = ((uint64_t)Data.nFileSizeHigh << 32)
|
---|
| 1361 | | (uint64_t)Data.nFileSizeLow;
|
---|
| 1362 | pObjInfo->cbAllocated = pObjInfo->cbObject;
|
---|
| 1363 |
|
---|
| 1364 | Assert(sizeof(uint64_t) == sizeof(Data.ftCreationTime));
|
---|
| 1365 | RTTimeSpecSetNtTime(&pObjInfo->BirthTime, *(uint64_t *)&Data.ftCreationTime);
|
---|
| 1366 | RTTimeSpecSetNtTime(&pObjInfo->AccessTime, *(uint64_t *)&Data.ftLastAccessTime);
|
---|
| 1367 | RTTimeSpecSetNtTime(&pObjInfo->ModificationTime, *(uint64_t *)&Data.ftLastWriteTime);
|
---|
| 1368 | pObjInfo->ChangeTime = pObjInfo->ModificationTime;
|
---|
| 1369 |
|
---|
[64620] | 1370 | pObjInfo->Attr.fMode = rtFsModeFromDos((Data.dwFileAttributes << RTFS_DOS_SHIFT) & RTFS_DOS_MASK_NT, "", 0,
|
---|
| 1371 | RTFSMODE_SYMLINK_REPARSE_TAG /* (symlink or not, doesn't usually matter here) */);
|
---|
[1] | 1372 |
|
---|
| 1373 | /*
|
---|
| 1374 | * Requested attributes (we cannot provide anything actually).
|
---|
| 1375 | */
|
---|
| 1376 | switch (enmAdditionalAttribs)
|
---|
| 1377 | {
|
---|
[34002] | 1378 | case RTFSOBJATTRADD_NOTHING:
|
---|
| 1379 | pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_NOTHING;
|
---|
[1] | 1380 | break;
|
---|
| 1381 |
|
---|
| 1382 | case RTFSOBJATTRADD_UNIX:
|
---|
| 1383 | pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX;
|
---|
| 1384 | pObjInfo->Attr.u.Unix.uid = ~0U;
|
---|
| 1385 | pObjInfo->Attr.u.Unix.gid = ~0U;
|
---|
| 1386 | pObjInfo->Attr.u.Unix.cHardlinks = Data.nNumberOfLinks ? Data.nNumberOfLinks : 1;
|
---|
[64639] | 1387 | pObjInfo->Attr.u.Unix.INodeIdDevice = Data.dwVolumeSerialNumber;
|
---|
| 1388 | pObjInfo->Attr.u.Unix.INodeId = RT_MAKE_U64(Data.nFileIndexLow, Data.nFileIndexHigh);
|
---|
[1] | 1389 | pObjInfo->Attr.u.Unix.fFlags = 0;
|
---|
| 1390 | pObjInfo->Attr.u.Unix.GenerationId = 0;
|
---|
| 1391 | pObjInfo->Attr.u.Unix.Device = 0;
|
---|
| 1392 | break;
|
---|
| 1393 |
|
---|
[34002] | 1394 | case RTFSOBJATTRADD_UNIX_OWNER:
|
---|
[34003] | 1395 | pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_OWNER;
|
---|
| 1396 | pObjInfo->Attr.u.UnixOwner.uid = ~0U;
|
---|
| 1397 | pObjInfo->Attr.u.UnixOwner.szName[0] = '\0'; /** @todo return something sensible here. */
|
---|
[1] | 1398 | break;
|
---|
| 1399 |
|
---|
[34002] | 1400 | case RTFSOBJATTRADD_UNIX_GROUP:
|
---|
[34003] | 1401 | pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_GROUP;
|
---|
| 1402 | pObjInfo->Attr.u.UnixGroup.gid = ~0U;
|
---|
| 1403 | pObjInfo->Attr.u.UnixGroup.szName[0] = '\0';
|
---|
[34002] | 1404 | break;
|
---|
| 1405 |
|
---|
| 1406 | case RTFSOBJATTRADD_EASIZE:
|
---|
| 1407 | pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_EASIZE;
|
---|
| 1408 | pObjInfo->Attr.u.EASize.cb = 0;
|
---|
| 1409 | break;
|
---|
| 1410 |
|
---|
[1] | 1411 | default:
|
---|
| 1412 | AssertMsgFailed(("Impossible!\n"));
|
---|
| 1413 | return VERR_INTERNAL_ERROR;
|
---|
| 1414 | }
|
---|
| 1415 |
|
---|
| 1416 | return VINF_SUCCESS;
|
---|
[75544] | 1417 | #endif
|
---|
[1] | 1418 | }
|
---|
| 1419 |
|
---|
| 1420 |
|
---|
[37596] | 1421 | RTR3DECL(int) RTFileSetTimes(RTFILE hFile, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
|
---|
[1] | 1422 | PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime)
|
---|
| 1423 | {
|
---|
[62584] | 1424 | RT_NOREF_PV(pChangeTime); /* Not exposed thru the windows API we're using. */
|
---|
| 1425 |
|
---|
[1] | 1426 | if (!pAccessTime && !pModificationTime && !pBirthTime)
|
---|
| 1427 | return VINF_SUCCESS; /* NOP */
|
---|
| 1428 |
|
---|
| 1429 | FILETIME CreationTimeFT;
|
---|
| 1430 | PFILETIME pCreationTimeFT = NULL;
|
---|
| 1431 | if (pBirthTime)
|
---|
| 1432 | pCreationTimeFT = RTTimeSpecGetNtFileTime(pBirthTime, &CreationTimeFT);
|
---|
| 1433 |
|
---|
| 1434 | FILETIME LastAccessTimeFT;
|
---|
| 1435 | PFILETIME pLastAccessTimeFT = NULL;
|
---|
| 1436 | if (pAccessTime)
|
---|
| 1437 | pLastAccessTimeFT = RTTimeSpecGetNtFileTime(pAccessTime, &LastAccessTimeFT);
|
---|
| 1438 |
|
---|
| 1439 | FILETIME LastWriteTimeFT;
|
---|
| 1440 | PFILETIME pLastWriteTimeFT = NULL;
|
---|
| 1441 | if (pModificationTime)
|
---|
| 1442 | pLastWriteTimeFT = RTTimeSpecGetNtFileTime(pModificationTime, &LastWriteTimeFT);
|
---|
| 1443 |
|
---|
| 1444 | int rc = VINF_SUCCESS;
|
---|
[37596] | 1445 | if (!SetFileTime((HANDLE)RTFileToNative(hFile), pCreationTimeFT, pLastAccessTimeFT, pLastWriteTimeFT))
|
---|
[1] | 1446 | {
|
---|
| 1447 | DWORD Err = GetLastError();
|
---|
| 1448 | rc = RTErrConvertFromWin32(Err);
|
---|
[13837] | 1449 | Log(("RTFileSetTimes(%RTfile, %p, %p, %p, %p): SetFileTime failed with lasterr %d (%Rrc)\n",
|
---|
[37596] | 1450 | hFile, pAccessTime, pModificationTime, pChangeTime, pBirthTime, Err, rc));
|
---|
[1] | 1451 | }
|
---|
| 1452 | return rc;
|
---|
| 1453 | }
|
---|
| 1454 |
|
---|
| 1455 |
|
---|
[69795] | 1456 | #if 0 /* RTFileSetMode is implemented by RTFileSetMode-r3-nt.cpp */
|
---|
[16650] | 1457 | /* This comes from a source file with a different set of system headers (DDK)
|
---|
| 1458 | * so it can't be declared in a common header, like internal/file.h.
|
---|
| 1459 | */
|
---|
| 1460 | extern int rtFileNativeSetAttributes(HANDLE FileHandle, ULONG FileAttributes);
|
---|
| 1461 |
|
---|
| 1462 |
|
---|
[37596] | 1463 | RTR3DECL(int) RTFileSetMode(RTFILE hFile, RTFMODE fMode)
|
---|
[1] | 1464 | {
|
---|
[16650] | 1465 | /*
|
---|
| 1466 | * Normalize the mode and call the API.
|
---|
| 1467 | */
|
---|
| 1468 | fMode = rtFsModeNormalize(fMode, NULL, 0);
|
---|
| 1469 | if (!rtFsModeIsValid(fMode))
|
---|
| 1470 | return VERR_INVALID_PARAMETER;
|
---|
| 1471 |
|
---|
| 1472 | ULONG FileAttributes = (fMode & RTFS_DOS_MASK) >> RTFS_DOS_SHIFT;
|
---|
[37596] | 1473 | int Err = rtFileNativeSetAttributes((HANDLE)hFile, FileAttributes);
|
---|
[16650] | 1474 | if (Err != ERROR_SUCCESS)
|
---|
| 1475 | {
|
---|
| 1476 | int rc = RTErrConvertFromWin32(Err);
|
---|
| 1477 | Log(("RTFileSetMode(%RTfile, %RTfmode): rtFileNativeSetAttributes (0x%08X) failed with err %d (%Rrc)\n",
|
---|
[37596] | 1478 | hFile, fMode, FileAttributes, Err, rc));
|
---|
[16650] | 1479 | return rc;
|
---|
| 1480 | }
|
---|
[1] | 1481 | return VINF_SUCCESS;
|
---|
| 1482 | }
|
---|
[69795] | 1483 | #endif
|
---|
[1] | 1484 |
|
---|
| 1485 |
|
---|
[64619] | 1486 | /* RTFileQueryFsSizes is implemented by ../nt/RTFileQueryFsSizes-nt.cpp */
|
---|
[24889] | 1487 |
|
---|
[104284] | 1488 | #if 0 /* RTFileDelete is implemented by ../nt/RTFileDelete-r3-nt.cpp */
|
---|
[1] | 1489 | RTR3DECL(int) RTFileDelete(const char *pszFilename)
|
---|
| 1490 | {
|
---|
| 1491 | PRTUTF16 pwszFilename;
|
---|
[74460] | 1492 | int rc = RTPathWinFromUtf8(&pwszFilename, pszFilename, 0 /*fFlags*/);
|
---|
[1] | 1493 | if (RT_SUCCESS(rc))
|
---|
| 1494 | {
|
---|
| 1495 | if (!DeleteFileW(pwszFilename))
|
---|
| 1496 | rc = RTErrConvertFromWin32(GetLastError());
|
---|
[74460] | 1497 | RTPathWinFree(pwszFilename);
|
---|
[1] | 1498 | }
|
---|
| 1499 |
|
---|
| 1500 | return rc;
|
---|
| 1501 | }
|
---|
[104284] | 1502 | #endif
|
---|
[1] | 1503 |
|
---|
| 1504 |
|
---|
| 1505 | RTDECL(int) RTFileRename(const char *pszSrc, const char *pszDst, unsigned fRename)
|
---|
| 1506 | {
|
---|
| 1507 | /*
|
---|
| 1508 | * Validate input.
|
---|
| 1509 | */
|
---|
[90781] | 1510 | AssertPtrReturn(pszSrc, VERR_INVALID_POINTER);
|
---|
| 1511 | AssertPtrReturn(pszDst, VERR_INVALID_POINTER);
|
---|
[1] | 1512 | AssertMsgReturn(!(fRename & ~RTPATHRENAME_FLAGS_REPLACE), ("%#x\n", fRename), VERR_INVALID_PARAMETER);
|
---|
| 1513 |
|
---|
| 1514 | /*
|
---|
| 1515 | * Hand it on to the worker.
|
---|
| 1516 | */
|
---|
| 1517 | int rc = rtPathWin32MoveRename(pszSrc, pszDst,
|
---|
| 1518 | fRename & RTPATHRENAME_FLAGS_REPLACE ? MOVEFILE_REPLACE_EXISTING : 0,
|
---|
| 1519 | RTFS_TYPE_FILE);
|
---|
| 1520 |
|
---|
| 1521 | LogFlow(("RTFileMove(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n",
|
---|
| 1522 | pszSrc, pszSrc, pszDst, pszDst, fRename, rc));
|
---|
| 1523 | return rc;
|
---|
| 1524 |
|
---|
| 1525 | }
|
---|
| 1526 |
|
---|
| 1527 |
|
---|
| 1528 | RTDECL(int) RTFileMove(const char *pszSrc, const char *pszDst, unsigned fMove)
|
---|
| 1529 | {
|
---|
| 1530 | /*
|
---|
| 1531 | * Validate input.
|
---|
| 1532 | */
|
---|
[90781] | 1533 | AssertPtrReturn(pszSrc, VERR_INVALID_POINTER);
|
---|
| 1534 | AssertPtrReturn(pszDst, VERR_INVALID_POINTER);
|
---|
[1] | 1535 | AssertMsgReturn(!(fMove & ~RTFILEMOVE_FLAGS_REPLACE), ("%#x\n", fMove), VERR_INVALID_PARAMETER);
|
---|
| 1536 |
|
---|
| 1537 | /*
|
---|
| 1538 | * Hand it on to the worker.
|
---|
| 1539 | */
|
---|
| 1540 | int rc = rtPathWin32MoveRename(pszSrc, pszDst,
|
---|
| 1541 | fMove & RTFILEMOVE_FLAGS_REPLACE
|
---|
| 1542 | ? MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING
|
---|
| 1543 | : MOVEFILE_COPY_ALLOWED,
|
---|
| 1544 | RTFS_TYPE_FILE);
|
---|
| 1545 |
|
---|
| 1546 | LogFlow(("RTFileMove(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n",
|
---|
| 1547 | pszSrc, pszSrc, pszDst, pszDst, fMove, rc));
|
---|
| 1548 | return rc;
|
---|
| 1549 | }
|
---|
| 1550 |
|
---|