Function dfs_win32_open

bsp/simulator/drivers/dfs_win32.c:147–240

}

static int dfs_win32_open(struct dfs_file *file)
{
    int fd;
    uint32_t oflag, mode;
    char *file_path;
    int res;

    oflag = file->flags;
    if (oflag & O_DIRECTORY)   /* operations about dir */
    {
        WINDIR *wdirp;
        HANDLE handle;
        int len;

        file_path = winpath_dirdup(WIN32_DIRDISK_ROOT, file->vnode->path);

        if (oflag & O_CREAT)   /* create a dir*/
        {
            res = CreateDirectory(file_path, NULL);
            if (res == 0)
            {
                rt_free(file_path);
                return win32_result_to_dfs(GetLastError());
            }
        }

        len = strlen(file_path);
        if (file_path[len - 1] != '\\')
        {
            file_path[len] = '\\';
            file_path[len + 1] = 0;
        }

        strcat(file_path, "*.*");
        /* _findfirst will get '.' */
        /* save this pointer,will used by  dfs_win32_getdents*/
        wdirp = rt_malloc(sizeof(WINDIR));
        RT_ASSERT(wdirp != NULL);
        if ((handle = _findfirst(file_path, &wdirp->finddata)) == -1)
        {
            rt_free(wdirp);
            rt_free(file_path);
            goto __err;
        }
        len = strlen(wdirp->finddata.name) + 1;
        wdirp->handle = handle;
        //wdirp->nfiles = 1;
        wdirp->start = (char *)malloc(len); //not rt_malloc!
        wdirp->end = wdirp->curr = wdirp->start;
        wdirp->end += len;
        rt_strncpy(wdirp->curr, wdirp->finddata.name, len);

        file->vnode->data = (void *)wdirp;
        rt_free(file_path);
        return 0;
    }
    /* regular file operations */
    mode = O_BINARY;