int ADUC_SystemUtils_CopyFileToDir()

in src/utils/system_utils/src/system_utils.c [471:558]
70 lines of code
15 McCabe index (conditional complexity)

int ADUC_SystemUtils_CopyFileToDir(const char* filePath, const char* dirPath, const bool overwriteExistingFile)
{
    int result = -1;
    STRING_HANDLE destFilePath = NULL;

    FILE* sourceFile = NULL;
    FILE* destFile = NULL;
    unsigned char readBuff[1024];
    const size_t readMaxBuffSize = ARRAY_SIZE(readBuff);

    memset(readBuff, 0, readMaxBuffSize);

    if (filePath == NULL || dirPath == NULL)
    {
        goto done;
    }

    if (!ADUC_SystemUtils_FormatFilePathHelper(&destFilePath, filePath, dirPath))
    {
        goto done;
    }

    sourceFile = fopen(filePath, "rb");

    if (sourceFile == NULL)
    {
        goto done;
    }

    if (overwriteExistingFile)
    {
        destFile = fopen(STRING_c_str(destFilePath), "wb+");
    }
    else
    {
        destFile = fopen(STRING_c_str(destFilePath), "wb");
    }

    if (destFile == NULL)
    {
        goto done;
    }

    size_t readBytes = fread(readBuff, readMaxBuffSize, sizeof(readBuff[0]), sourceFile);

    while (readBytes != 0 && feof(sourceFile) != 0)
    {
        const size_t writtenBytes = fwrite(readBuff, readBytes, sizeof(readBuff[0]), destFile);

        result = ferror(destFile);
        if (writtenBytes != readBytes || result != 0)
        {
            goto done;
        }

        readBytes = fread(readBuff, readMaxBuffSize, sizeof(readBuff[0]), sourceFile);
        result = ferror(sourceFile);
        if (result != 0)
        {
            goto done;
        }
    }

    struct stat buff;
    if (stat(filePath, &buff) != 0)
    {
        goto done;
    }

    if (ADUCPAL_chmod(STRING_c_str(destFilePath), buff.st_mode) != 0)
    {
        goto done;
    }

    result = 0;
done:

    fclose(sourceFile);
    fclose(destFile);

    if (result != 0)
    {
        remove(STRING_c_str(destFilePath));
    }

    STRING_delete(destFilePath);
    return result;
}