/*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 *    of conditions and the following disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "It_vfs_jffs.h"

static UINT32 Testcase(VOID)
{
    INT32 fd, ret, len, i;
    CHAR pathname1[JFFS_STANDARD_NAME_LENGTH] = { JFFS_PATH_NAME0 };
    CHAR pathname2[JFFS_STANDARD_NAME_LENGTH] = { JFFS_PATH_NAME0 };
    CHAR filebuf[260] = "abcdeabcde0123456789abcedfghij9876550210abcdeabcde0123456789abcedfghij9876550210abcdeabcde0123"
        "456789abcedfghij9876550210abcdeabcde0123456789abcedfghij9876550210abcdeabcde0123456789abcedfgh"
        "ij9876550210abcdeabcde0123456789abcedfghij9876550210lalalalalalalala";
    CHAR *writebuf = NULL;
    CHAR *readbuf = NULL;
    off_t off;

    ret = mkdir(pathname1, S_IRWXU | S_IRWXG | S_IRWXO);
    ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT);

    ret = chdir(pathname1);
    ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT);

    strcat(pathname2, "/test");
    fd = open(pathname2, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, S_IRWXU | S_IRWXG | S_IRWXO);
    ICUNIT_GOTO_NOT_EQUAL(fd, -1, fd, EXIT2);

    writebuf = (CHAR *)malloc(0xffff + 2); // malloc 0xffff + 2 bytes buffer
    ICUNIT_GOTO_NOT_EQUAL(writebuf, NULL, writebuf, EXIT2);
    memset(writebuf, 0, 0xffff + 2); // memset 0xffff + 2 bytes

    for (i = 0; i < 256; i++) { // generate 256 * 260 bytes writebuf
        strcat(writebuf, filebuf);
    }
    writebuf[0xffff] = '\0';

    readbuf = (CHAR *)malloc(0xffff + 1);
    ICUNIT_GOTO_NOT_EQUAL(readbuf, NULL, readbuf, EXIT3);
    memset(readbuf, 0, 0xffff + 1);

    len = pwrite(fd, writebuf, 0xffff, 0);
    ICUNIT_GOTO_EQUAL(len, 0xffff, len, EXIT4);

    off = lseek(fd, 0, SEEK_SET);
    ICUNIT_GOTO_EQUAL(off, 0, off, EXIT4);

    memset(readbuf, 0, JFFS_STANDARD_NAME_LENGTH);
    len = read(fd, readbuf, 0xffff);
    ICUNIT_GOTO_EQUAL(len, 0xffff, len, EXIT4);
    ICUNIT_GOTO_STRING_EQUAL(readbuf, writebuf, readbuf, EXIT4);

    off = lseek(fd, 0, SEEK_CUR);
    ICUNIT_GOTO_EQUAL(off, 0xffff, off, EXIT4);

    free(readbuf);
    free(writebuf);

    ret = close(fd);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT2);

    ret = unlink(pathname2);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT1);

    ret = chdir(JFFS_MAIN_DIR0);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

    ret = rmdir(pathname1);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

    strcpy(pathname2, JFFS_PATH_NAME0);

    ret = mkdir(pathname1, S_IRWXU | S_IRWXG | S_IRWXO);
    ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT);

    ret = chdir(pathname1);
    ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT);

    strcat(pathname2, "/test");
    fd = open(pathname2, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, S_IRWXU | S_IRWXG | S_IRWXO);
    ICUNIT_GOTO_NOT_EQUAL(fd, -1, fd, EXIT2);

    writebuf = (CHAR *)malloc(0xffff + 2); // malloc 0xffff + 2 bytes buffer
    ICUNIT_GOTO_NOT_EQUAL(writebuf, NULL, writebuf, EXIT2);
    memset(writebuf, 0, 0xffff + 2); // memset 0xffff + 2 bytes

    for (i = 0; i < 256; i++) { // generate 256 * 260 bytes writebuf
        strcat(writebuf, filebuf);
    }
    writebuf[0xffff] = '\0';

    readbuf = (CHAR *)malloc(0xffff + 1);
    ICUNIT_GOTO_NOT_EQUAL(readbuf, NULL, readbuf, EXIT3);
    memset(readbuf, 0, 0xffff + 1);

    len = pwrite64(fd, writebuf, 0xffff, 0);
    ICUNIT_GOTO_EQUAL(len, 0xffff, len, EXIT4);

    off = lseek(fd, 0, SEEK_SET);
    ICUNIT_GOTO_EQUAL(off, 0, off, EXIT4);

    memset(readbuf, 0, JFFS_STANDARD_NAME_LENGTH);
    len = read(fd, readbuf, 0xffff);
    ICUNIT_GOTO_EQUAL(len, 0xffff, len, EXIT4);
    ICUNIT_GOTO_STRING_EQUAL(readbuf, writebuf, readbuf, EXIT4);

    off = lseek(fd, 0, SEEK_CUR);
    ICUNIT_GOTO_EQUAL(off, 0xffff, off, EXIT4);

    free(readbuf);
    free(writebuf);

    ret = close(fd);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT2);

    ret = unlink(pathname2);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT1);

    ret = chdir(JFFS_MAIN_DIR0);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

    ret = rmdir(pathname1);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
    return JFFS_NO_ERROR;
EXIT4:
    free(readbuf);
EXIT3:
    free(writebuf);
EXIT2:
    close(fd);
EXIT1:
    remove(pathname2);
EXIT:
    remove(pathname1);
    return JFFS_NO_ERROR;
}

/*
 *
testcase brief in English
 *
 */

VOID ItFsJffs506(VOID)
{
    TEST_ADD_CASE("IT_FS_JFFS_506", Testcase, TEST_VFS, TEST_JFFS, TEST_LEVEL2, TEST_FUNCTION);
}