| 1 | /* $Id: tstFileAppendWin-1.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT Testcase - Exploration of File Appending on Windows.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2008-2023 Oracle and/or its affiliates.
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| 8 | *
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| 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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| 11 | *
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| 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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| 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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| 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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| 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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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 |
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| 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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| 41 | #include <iprt/win/windows.h>
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| 42 | #include <stdio.h>
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| 43 | #include <string.h>
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| 44 | #include <stdarg.h>
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| 45 |
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| 46 |
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| 47 | /*********************************************************************************************************************************
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| 48 | * Global Variables *
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| 49 | *********************************************************************************************************************************/
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| 50 | static int g_cErrors = 0;
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| 51 |
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| 52 |
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| 53 | static int MyFailure(const char *pszFormat, ...)
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| 54 | {
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| 55 | va_list va;
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| 56 |
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| 57 | printf("tstFileAppendWin-1: FATAL: ");
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| 58 | va_start(va, pszFormat);
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| 59 | vprintf(pszFormat, va);
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| 60 | va_end(va);
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| 61 | g_cErrors++;
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| 62 | return 1;
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| 63 | }
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| 64 |
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| 65 |
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| 66 | void MyError(const char *pszFormat, ...)
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| 67 | {
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| 68 | va_list va;
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| 69 |
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| 70 | printf("tstFileAppendWin-1: ERROR: ");
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| 71 | va_start(va, pszFormat);
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| 72 | vprintf(pszFormat, va);
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| 73 | va_end(va);
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| 74 | g_cErrors++;
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| 75 | }
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| 76 |
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| 77 |
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| 78 | int main()
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| 79 | {
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| 80 | HANDLE hFile;
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| 81 | LARGE_INTEGER off;
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| 82 | DWORD cb;
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| 83 | char szBuf[256];
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| 84 |
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| 85 |
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| 86 | printf("tstFileAppendWin-1: TESTING...\n");
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| 87 |
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| 88 | /*
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| 89 | * Open it write only and do some appending.
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| 90 | * Checking that read fails and that the file position changes after the read.
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| 91 | */
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| 92 | DeleteFile("tstFileAppendWin-1.tst");
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| 93 | hFile = CreateFile("tstFileAppendWin-1.tst",
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| 94 | (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA),
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| 95 | FILE_SHARE_READ,
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| 96 | NULL,
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| 97 | CREATE_ALWAYS,
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| 98 | FILE_ATTRIBUTE_NORMAL,
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| 99 | NULL);
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| 100 | if (hFile == INVALID_HANDLE_VALUE)
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| 101 | return MyFailure("1st CreateFile: %d\n", GetLastError());
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| 102 |
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| 103 | off.QuadPart = 0;
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| 104 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 105 | MyError("1st SetFilePointerEx failed: %d\n", GetLastError());
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| 106 | else if (off.QuadPart != 0)
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| 107 | MyError("unexpected position on open: %ld - expected 0\n", (long)off.QuadPart);
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| 108 |
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| 109 | if (!WriteFile(hFile, "0123456789", 10, &cb, NULL))
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| 110 | MyError("write fail: %d\n", GetLastError());
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| 111 |
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| 112 | off.QuadPart = 0;
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| 113 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 114 | MyError("2nd SetFilePointerEx failed: %d\n", GetLastError());
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| 115 | else if (off.QuadPart != 10)
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| 116 | MyError("unexpected position on write: %ld - expected 10\n", (long)off.QuadPart);
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| 117 | else
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| 118 | printf("tstFileAppendWin-1: off=%ld after first write\n", (long)off.QuadPart);
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| 119 |
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| 120 | SetLastError(0);
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| 121 | if (ReadFile(hFile, szBuf, 1, &cb, NULL))
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| 122 | MyError("read didn't fail! cb=%#lx lasterr=%d\n", (long)cb, GetLastError());
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| 123 |
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| 124 | off.QuadPart = 5;
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| 125 | if (!SetFilePointerEx(hFile, off, &off, FILE_BEGIN))
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| 126 | MyError("3rd SetFilePointerEx failed: %d\n", GetLastError());
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| 127 | else if (off.QuadPart != 5)
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| 128 | MyError("unexpected position after set file pointer: %ld - expected 5\n", (long)off.QuadPart);
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| 129 |
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| 130 | CloseHandle(hFile);
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| 131 |
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| 132 | /*
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| 133 | * Open it write only and do some more appending.
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| 134 | * Checking the initial position and that it changes after the write.
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| 135 | */
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| 136 | hFile = CreateFile("tstFileAppendWin-1.tst",
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| 137 | (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA),
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| 138 | FILE_SHARE_READ,
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| 139 | NULL,
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| 140 | OPEN_EXISTING,
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| 141 | FILE_ATTRIBUTE_NORMAL,
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| 142 | NULL);
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| 143 | if (hFile == INVALID_HANDLE_VALUE)
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| 144 | return MyFailure("2nd CreateFile: %d\n", GetLastError());
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| 145 |
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| 146 | off.QuadPart = 0;
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| 147 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 148 | MyError("4th SetFilePointerEx failed: %d\n", GetLastError());
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| 149 | else if (off.QuadPart != 0)
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| 150 | MyError("unexpected position on open: %ld - expected 0\n", (long)off.QuadPart);
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| 151 | else
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| 152 | printf("tstFileAppendWin-1: off=%ld on 2nd open\n", (long)off.QuadPart);
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| 153 |
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| 154 | if (!WriteFile(hFile, "abcdefghij", 10, &cb, NULL))
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| 155 | MyError("2nd write failed: %d\n", GetLastError());
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| 156 |
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| 157 | off.QuadPart = 0;
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| 158 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 159 | MyError("5th SetFilePointerEx failed: %d\n", GetLastError());
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| 160 | else if (off.QuadPart != 20)
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| 161 | MyError("unexpected position on 2nd write: %ld - expected 20\n", (long)off.QuadPart);
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| 162 | else
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| 163 | printf("tstFileAppendWin-1: off=%ld after 2nd write\n", (long)off.QuadPart);
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| 164 |
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| 165 | CloseHandle(hFile);
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| 166 |
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| 167 | /*
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| 168 | * Open it read/write.
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| 169 | * Check the initial position and read stuff. Then append some more and
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| 170 | * check the new position and see that read returns 0/EOF. Finally,
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| 171 | * do some seeking and read from a new position.
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| 172 | */
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| 173 | hFile = CreateFile("tstFileAppendWin-1.tst",
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| 174 | (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) | GENERIC_READ,
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| 175 | FILE_SHARE_READ,
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| 176 | NULL,
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| 177 | OPEN_EXISTING,
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| 178 | FILE_ATTRIBUTE_NORMAL,
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| 179 | NULL);
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| 180 | if (hFile == INVALID_HANDLE_VALUE)
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| 181 | return MyFailure("3rd CreateFile: %d\n", GetLastError());
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| 182 |
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| 183 | off.QuadPart = 0;
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| 184 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 185 | MyError("6th SetFilePointerEx failed: %d\n", GetLastError());
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| 186 | else if (off.QuadPart != 0)
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| 187 | MyError("unexpected position on open: %ld - expected 0\n", (long)off.QuadPart);
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| 188 | else
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| 189 | printf("tstFileAppendWin-1: off=%ld on 3rd open\n", (long)off.QuadPart);
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| 190 |
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| 191 | if (!ReadFile(hFile, szBuf, 10, &cb, NULL) || cb != 10)
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| 192 | MyError("1st ReadFile failed: %d\n", GetLastError());
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| 193 | else if (memcmp(szBuf, "0123456789", 10))
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| 194 | MyError("read the wrong stuff: %.10s - expected 0123456789\n", szBuf);
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| 195 |
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| 196 | off.QuadPart = 0;
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| 197 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 198 | MyError("7th SetFilePointerEx failed: %d\n", GetLastError());
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| 199 | else if (off.QuadPart != 10)
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| 200 | MyError("unexpected position on 1st read: %ld - expected 0\n", (long)off.QuadPart);
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| 201 | else
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| 202 | printf("tstFileAppendWin-1: off=%ld on 1st read\n", (long)off.QuadPart);
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| 203 |
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| 204 | if (!WriteFile(hFile, "klmnopqrst", 10, &cb, NULL))
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| 205 | MyError("3rd write failed: %d\n", GetLastError());
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| 206 |
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| 207 | off.QuadPart = 0;
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| 208 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 209 | MyError("8th SetFilePointerEx failed: %d\n", GetLastError());
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| 210 | else if (off.QuadPart != 30)
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| 211 | MyError("unexpected position on 3rd write: %ld - expected 30\n", (long)off.QuadPart);
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| 212 | else
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| 213 | printf("tstFileAppendWin-1: off=%ld after 3rd write\n", (long)off.QuadPart);
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| 214 |
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| 215 | SetLastError(0);
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| 216 | if (ReadFile(hFile, szBuf, 1, &cb, NULL) && cb != 0)
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| 217 | MyError("read after write didn't fail! cb=%#lx lasterr=%d\n", (long)cb, GetLastError());
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| 218 |
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| 219 | off.QuadPart = 15;
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| 220 | if (!SetFilePointerEx(hFile, off, &off, FILE_BEGIN))
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| 221 | MyError("9th SetFilePointerEx failed: %d\n", GetLastError());
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| 222 | else if (off.QuadPart != 15)
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| 223 | MyError("unexpected position on 3rd write: %ld - expected 15\n", (long)off.QuadPart);
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| 224 | else
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| 225 | {
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| 226 | if (!ReadFile(hFile, szBuf, 10, &cb, NULL) || cb != 10)
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| 227 | MyError("1st ReadFile failed: %d\n", GetLastError());
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| 228 | else if (memcmp(szBuf, "fghijklmno", 10))
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| 229 | MyError("read the wrong stuff: %.10s - expected fghijklmno\n", szBuf);
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| 230 |
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| 231 | off.QuadPart = 0;
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| 232 | if (!SetFilePointerEx(hFile, off, &off, FILE_CURRENT))
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| 233 | MyError("10th SetFilePointerEx failed: %d\n", GetLastError());
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| 234 | else if (off.QuadPart != 25)
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| 235 | MyError("unexpected position on 2nd read: %ld - expected 25\n", (long)off.QuadPart);
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| 236 | else
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| 237 | printf("tstFileAppendWin-1: off=%ld after 2nd read\n", (long)off.QuadPart);
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| 238 | }
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| 239 |
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| 240 | CloseHandle(hFile);
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| 241 |
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| 242 | /*
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| 243 | * Open it read only + append and check that we cannot write to it.
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| 244 | */
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| 245 | hFile = CreateFile("tstFileAppendWin-1.tst",
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| 246 | FILE_APPEND_DATA | GENERIC_READ,
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| 247 | FILE_SHARE_READ,
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| 248 | NULL,
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| 249 | CREATE_ALWAYS,
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| 250 | FILE_ATTRIBUTE_NORMAL,
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| 251 | NULL);
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| 252 | if (hFile == INVALID_HANDLE_VALUE)
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| 253 | return MyFailure("4th CreateFile: %d\n", GetLastError());
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| 254 |
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| 255 | SetLastError(0);
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| 256 | if (WriteFile(hFile, "pqrstuvwx", 10, &cb, NULL))
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| 257 | MyError("write didn't on read-only+append open: %d cb=%#lx\n", GetLastError(), (long)cb);
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| 258 |
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| 259 | CloseHandle(hFile);
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| 260 | DeleteFile("tstfileAppendWin-1.tst");
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| 261 |
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| 262 | if (g_cErrors)
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| 263 | printf("tstFileAppendWin-1: FAILED\n");
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| 264 | else
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| 265 | printf("tstFileAppendWin-1: SUCCESS\n");
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| 266 | return g_cErrors ? 1 : 0;
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| 267 | }
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| 268 |
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