rotek
/
module_universal_io


			
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<title>FatFs - f_stat</title>
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<body>

<div class="para func">
<h2>f_stat</h2>
<p>The f_stat function checks the existence of a file or sub-directory.</p>
<pre>
FRESULT f_stat (
  const TCHAR* <span class="arg">path</span>,  <span class="c">/* [IN] Object name */</span>
  FILINFO* <span class="arg">fno</span>        <span class="c">/* [OUT] FILINFO structure */</span>
);
</pre>
</div>

<div class="para arg">
<h4>Parameters</h4>
<dl class="par">
<dt>path</dt>
<dd>Pointer to the null-terminated string that specifies the <a href="filename.html">object</a> to get its information.</dd>
<dt>fno</dt>
<dd>Pointer to the blank <tt>FILINFO</tt> structure to store the information of the object. Set null pointer if it is not needed.</dd>
</dl>
</div>


<div class="para ret">
<h4>Return Values</h4>
<p>
<a href="rc.html#ok">FR_OK</a>,
<a href="rc.html#de">FR_DISK_ERR</a>,
<a href="rc.html#ie">FR_INT_ERR</a>,
<a href="rc.html#nr">FR_NOT_READY</a>,
<a href="rc.html#ok">FR_NO_FILE</a>,
<a href="rc.html#np">FR_NO_PATH</a>,
<a href="rc.html#in">FR_INVALID_NAME</a>,
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
<a href="rc.html#tm">FR_TIMEOUT</a>,
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
</p>
</div>


<div class="para desc">
<h4>Description</h4>
<p>The <tt>f_stat</tt> function checks the existence of a file or sub-directory. If not exist, the function returns with <tt>FR_NO_FILE</tt>. If exist, the function returns with <tt>FR_OK</tt> and the informations of the object, file size, timestamp, attribute and SFN, are stored to the file information structure. For details of the file information, refer to the <tt>FILINFO</tt> structure and <a href="readdir.html"><tt>f_readdir</tt></a> function.</p>
<p>When LFN feature is enabled, <tt>lfname</tt> in the file information structure must be NULLed prior to use it.</p>
</div>


<div class="para comp">
<h4>QuickInfo</h4>
<p>Available when <tt>_FS_MINIMIZE == 0</tt>.</p>
</div>


<div class="para use">
<h4>Example</h4>
<pre>
    FRESULT fr;
    FILINFO fno;


    printf("Test for 'file.txt'...\n");

<span class="k">#if</span> _USE_LFN
    fno.lfname = 0;
<span class="k">#endif</span>
    fr = f_stat("file.txt", &amp;fno);
    switch (fr) {

    case FR_OK:
        printf("Size: %u\n", fno.fsize);
        printf("Timestamp: %u/%02u/%02u, %02u:%02u\n",
               (fno.fdate &gt;&gt; 9) + 1980, fno.fdate &gt;&gt; 5 &amp; 15, fno.fdate &amp; 31,
               fno.ftime &gt;&gt; 11, fno.ftime &gt;&gt; 5 &amp; 63);
        printf("Attributes: %c%c%c%c%c\n",
               (fno.fattrib & AM_DIR) ? 'D' : '-',
               (fno.fattrib & AM_RDO) ? 'R' : '-',
               (fno.fattrib & AM_HID) ? 'H' : '-',
               (fno.fattrib & AM_SYS) ? 'S' : '-',
               (fno.fattrib & AM_ARC) ? 'A' : '-');
        break;

    case FR_NO_FILE:
        printf("It is not exist.\n");
        break;

    default:
        printf("An error occured. (%d)\n", fr);
    }
</pre>
</div>


<div class="para ref">
<h4>References</h4>
<p><tt><a href="opendir.html">f_opendir</a>, <a href="readdir.html">f_readdir</a>, <a href="sfileinfo.html">FILINFO</a></tt></p>
</div>

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