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  <tr>
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      &nbsp;
    </td>
    <td>

<p>
Reads a sequence of bytes into the given buffer. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>buf</em>&nbsp;</td><td>The buffer into which bytes are to be transferred. </td></tr>
  </table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>the total number of bytes read into the buffer, or -1 if there is no more data 