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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><!-- http://linux-ntfs.sourceforge.net/ntfs/attributes/ea.html --><html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <meta name="description" content="NTFS Documentation"> <link rel="stylesheet" type="text/css" href="../style/ntfsdoc.css"> <link rel="start" type="text/html" href="../index.html" title="NTFS Documentation"> <title>$EA (0xE0) - Attribute - NTFS Documentation</title> </head> <body> <table border="0" class="toolbar" summary="" cellspacing="0"> <tr> <td class="toolbar"><a accesskey="1" class="toolbar" href="../index.html">Home</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="2" class="toolbar" href="../files/index.html">Files</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="3" class="toolbar" href="../attributes/index.html">Attributes</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="4" class="toolbar" href="../concepts/index.html">Concepts</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="5" class="toolbar" href="../help/glossary.html">Glossary</a></td> <td class="toolbar"> </td> <td class="toolbar"><a accesskey="6" class="toolbar" href="../help/index.html">Help</a></td> </tr> </table> <h1>Attribute - $EA (0xE0)</h1> <a class="prevnext" accesskey="," href="ea_information.html">Previous</a> <a class="prevnext" accesskey="." href="logged_utility_stream.html">Next</a> <h2>Overview</h2> <p> Used to implement the HPFS extended attribute under NTFS. This file attribute may be non-resident because its stream is likely to grow. </p> <p> As defined in <a href="../files/attrdef.html">$AttrDef</a>, this attribute has a no minimum size but a maximum of 65536 bytes. </p> <h2>Layout of the Attribute</h2> <p> The Extended Attribute is a collection of name, value pairs. </p> <table border="1" summary="" cellspacing="0"> <tr> <th class="numeric">Offset</th> <th class="numeric">Size</th> <th>Description</th> </tr> <tr> <td class="numeric">~</td> <td class="numeric">~</td> <td><a href="../concepts/attribute_header.html">Standard Attribute Header</a></td> </tr> <tr> <td class="numeric">0x00</td> <td class="numeric">4</td> <td>Offset to next Extended Attribute</td> </tr> <tr> <td class="numeric">0x04</td> <td class="numeric">1</td> <td>Flags</td> </tr> <tr> <td class="numeric">0x05</td> <td class="numeric">1</td> <td>Name Length (N)</td> </tr> <tr> <td class="numeric">0x06</td> <td class="numeric">2</td> <td>Value Length (V)</td> </tr> <tr> <td class="numeric">0x08</td> <td class="numeric">N</td> <td>Name</td> </tr> <tr> <td class="numeric">N+0x08</td> <td class="numeric">V</td> <td>Value</td> </tr> </table> <p>Conversely, the <q>Offset to next EA</q> is the size of this EA.</p> <h3>Flags</h3> <table border="1" summary="" cellspacing="0"> <tr> <th class="numeric">Value</th> <th>Description</th> </tr> <tr> <td class="numeric">0x80</td> <td>Need EA</td> </tr> </table> <h2>Notes</h2> <h3>Other Information</h3> <p> What is the role and the layout of the stream of this file attribute? It could be valuable to have a look at HPFS documentation. </p> <h3>Questions</h3> <p> Is it true that the EA name is not unicode? </p> <br> <a class="contact" href="http://linux-ntfs.sourceforge.net/ntfs/attributes/ea.html">Online</a> <!-- The two validators will only work if this page is visible on the web --> <a class="contact" href="http://validator.w3.org/check/referer">Validate HTML</a> <a class="contact" href="http://jigsaw.w3.org/css-validator/check/referer">Validate CSS</a> <a class="contact" href="mailto:webmaster@flatcap.org">$Id: ea.html,v 1.12 2001/07/11 16:36:41 flatcap Exp $</a> </body></html>⌨️ 快捷键说明
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