| 1 | /* $Id: tstRTFileAppend-1.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT Testcase - File Appending.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2009-2024 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/file.h>
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| 42 |
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| 43 | #include <iprt/err.h>
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| 44 | #include <iprt/string.h>
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| 45 | #include <iprt/test.h>
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| 46 |
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| 47 |
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| 48 | static void tstFileAppend1(RTTEST hTest)
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| 49 | {
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| 50 | /*
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| 51 | * Open it write only and do some appending.
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| 52 | * Checking that read fails and that the file position changes after the write.
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| 53 | */
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| 54 | RTTestSub(hTest, "Basic 1");
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| 55 | RTFileDelete("tstFileAppend-1.tst");
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| 56 | RTFILE hFile = NIL_RTFILE;
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| 57 | int rc = RTFileOpen(&hFile,
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| 58 | "tstFileAppend-1.tst",
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| 59 | RTFILE_O_WRITE
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| 60 | | RTFILE_O_APPEND
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| 61 | | RTFILE_O_OPEN_CREATE
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| 62 | | RTFILE_O_DENY_NONE
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| 63 | | (0644 << RTFILE_O_CREATE_MODE_SHIFT)
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| 64 | );
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| 65 | RTTESTI_CHECK_RC_RETV(rc, VINF_SUCCESS);
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| 66 |
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| 67 | uint64_t offActual = 42;
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| 68 | uint64_t off = 0;
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| 69 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 70 | RTTESTI_CHECK_MSG(offActual == 0 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 71 |
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| 72 | RTTESTI_CHECK_RC(RTFileWrite(hFile, "0123456789", 10, NULL), VINF_SUCCESS);
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| 73 |
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| 74 | offActual = 99;
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| 75 | off = 0;
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| 76 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 77 | RTTESTI_CHECK_MSG(offActual == 10 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 78 | RTTestIPrintf(RTTESTLVL_INFO, "off=%llu after first write\n", offActual);
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| 79 |
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| 80 | size_t cb = 4;
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| 81 | char szBuf[256];
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| 82 | rc = RTFileRead(hFile, szBuf, 1, &cb);
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| 83 | RTTESTI_CHECK_MSG(rc == VERR_ACCESS_DENIED || rc == VERR_INVALID_HANDLE, ("rc=%Rrc\n", rc));
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| 84 |
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| 85 | offActual = 999;
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| 86 | off = 5;
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| 87 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_BEGIN, &offActual), VINF_SUCCESS);
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| 88 | RTTESTI_CHECK_MSG(offActual == 5 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 89 |
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| 90 | RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
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| 91 |
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| 92 |
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| 93 | /*
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| 94 | * Open it write only and do some more appending.
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| 95 | * Checking the initial position and that it changes after the write.
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| 96 | */
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| 97 | RTTestSub(hTest, "Basic 2");
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| 98 | rc = RTFileOpen(&hFile,
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| 99 | "tstFileAppend-1.tst",
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| 100 | RTFILE_O_WRITE
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| 101 | | RTFILE_O_APPEND
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| 102 | | RTFILE_O_OPEN
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| 103 | | RTFILE_O_DENY_NONE
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| 104 | );
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| 105 | RTTESTI_CHECK_RC_RETV(rc, VINF_SUCCESS);
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| 106 |
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| 107 | offActual = 99;
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| 108 | off = 0;
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| 109 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 110 | RTTESTI_CHECK_MSG(offActual == 0 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 111 | RTTestIPrintf(RTTESTLVL_INFO, "off=%llu on 2nd open\n", offActual);
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| 112 |
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| 113 | RTTESTI_CHECK_RC(rc = RTFileWrite(hFile, "abcdefghij", 10, &cb), VINF_SUCCESS);
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| 114 |
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| 115 | offActual = 999;
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| 116 | off = 0;
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| 117 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 118 | RTTESTI_CHECK_MSG(offActual == 20 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 119 | RTTestIPrintf(RTTESTLVL_INFO, "off=%llu after 2nd write\n", offActual);
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| 120 |
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| 121 | RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
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| 122 |
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| 123 | /*
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| 124 | * Open it read/write.
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| 125 | * Check the initial position and read stuff. Then append some more and
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| 126 | * check the new position and see that read returns 0/EOF. Finally,
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| 127 | * do some seeking and read from a new position.
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| 128 | */
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| 129 | RTTestSub(hTest, "Basic 3");
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| 130 | rc = RTFileOpen(&hFile,
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| 131 | "tstFileAppend-1.tst",
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| 132 | RTFILE_O_READWRITE
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| 133 | | RTFILE_O_APPEND
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| 134 | | RTFILE_O_OPEN
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| 135 | | RTFILE_O_DENY_NONE
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| 136 | );
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| 137 | RTTESTI_CHECK_RC_RETV(rc, VINF_SUCCESS);
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| 138 |
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| 139 | offActual = 9;
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| 140 | off = 0;
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| 141 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 142 | RTTESTI_CHECK_MSG(offActual == 0 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 143 | RTTestIPrintf(RTTESTLVL_INFO, "off=%llu on 3rd open\n", offActual);
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| 144 |
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| 145 | cb = 99;
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| 146 | RTTESTI_CHECK_RC(rc = RTFileRead(hFile, szBuf, 10, &cb), VINF_SUCCESS);
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| 147 | RTTESTI_CHECK(RT_FAILURE(rc) || cb == 10);
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| 148 | RTTESTI_CHECK_MSG(RT_FAILURE(rc) || !memcmp(szBuf, "0123456789", 10), ("read the wrong stuff: %.10s - expected 0123456789\n", szBuf));
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| 149 |
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| 150 | offActual = 999;
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| 151 | off = 0;
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| 152 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 153 | RTTESTI_CHECK_MSG(offActual == 10 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 154 | RTTestIPrintf(RTTESTLVL_INFO, "off=%llu on 1st open\n", offActual);
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| 155 |
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| 156 | RTTESTI_CHECK_RC(RTFileWrite(hFile, "klmnopqrst", 10, NULL), VINF_SUCCESS);
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| 157 |
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| 158 | offActual = 9999;
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| 159 | off = 0;
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| 160 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 161 | RTTESTI_CHECK_MSG(offActual == 30 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 162 | RTTestIPrintf(RTTESTLVL_INFO, "off=%llu after 3rd write\n", offActual);
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| 163 |
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| 164 | RTTESTI_CHECK_RC(rc = RTFileRead(hFile, szBuf, 1, NULL), VERR_EOF);
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| 165 | cb = 99;
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| 166 | RTTESTI_CHECK_RC(rc = RTFileRead(hFile, szBuf, 1, &cb), VINF_SUCCESS);
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| 167 | RTTESTI_CHECK(cb == 0);
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| 168 |
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| 169 |
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| 170 | offActual = 99999;
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| 171 | off = 15;
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| 172 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_BEGIN, &offActual), VINF_SUCCESS);
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| 173 | RTTESTI_CHECK_MSG(offActual == 15 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 174 | if (RT_SUCCESS(rc) && offActual == 15)
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| 175 | {
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| 176 | RTTESTI_CHECK_RC(rc = RTFileRead(hFile, szBuf, 10, NULL), VINF_SUCCESS);
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| 177 | RTTESTI_CHECK_MSG(RT_FAILURE(rc) || !memcmp(szBuf, "fghijklmno", 10), ("read the wrong stuff: %.10s - expected fghijklmno\n", szBuf));
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| 178 |
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| 179 | offActual = 9999999;
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| 180 | off = 0;
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| 181 | RTTESTI_CHECK_RC(rc = RTFileSeek(hFile, off, RTFILE_SEEK_CURRENT, &offActual), VINF_SUCCESS);
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| 182 | RTTESTI_CHECK_MSG(offActual == 25 || RT_FAILURE(rc), ("offActual=%llu", offActual));
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| 183 | RTTestIPrintf(RTTESTLVL_INFO, "off=%llu after 2nd read\n", offActual);
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| 184 | }
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| 185 |
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| 186 | RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
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| 187 |
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| 188 | /*
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| 189 | * Open it read only + append and check that we cannot write to it.
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| 190 | */
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| 191 | RTTestSub(hTest, "Basic 4");
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| 192 | rc = RTFileOpen(&hFile,
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| 193 | "tstFileAppend-1.tst",
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| 194 | RTFILE_O_READ
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| 195 | | RTFILE_O_APPEND
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| 196 | | RTFILE_O_OPEN
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| 197 | | RTFILE_O_DENY_NONE);
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| 198 | RTTESTI_CHECK_RC_RETV(rc, VINF_SUCCESS);
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| 199 |
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| 200 | rc = RTFileWrite(hFile, "pqrstuvwx", 10, &cb);
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| 201 | RTTESTI_CHECK_MSG(rc == VERR_ACCESS_DENIED || rc == VERR_INVALID_HANDLE, ("rc=%Rrc\n", rc));
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| 202 |
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| 203 | RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
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| 204 | RTTESTI_CHECK_RC(RTFileDelete("tstFileAppend-1.tst"), VINF_SUCCESS);
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| 205 | }
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| 206 |
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| 207 |
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| 208 | int main()
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| 209 | {
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| 210 | RTTEST hTest;
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| 211 | int rc = RTTestInitAndCreate("tstRTFileAppend-1", &hTest);
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| 212 | if (rc)
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| 213 | return rc;
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| 214 | RTTestBanner(hTest);
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| 215 | tstFileAppend1(hTest);
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| 216 | RTFileDelete("tstFileAppend-1.tst");
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| 217 | return RTTestSummaryAndDestroy(hTest);
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| 218 | }
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| 219 |
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