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<title>Index Root Attribute</title>
The index root contains the top level nodes of an index tree. See the
<a href=dir.html>directory overview</a> for a description of its purpose.
At offset 20 of the data (or 40 of the attribute), the list of
<a href=direntry.html>entries</a> begins. The layout of the index header
is
<pre>
offset(length) Description
0(4) always 0x30. Indexed attribute?
4(4) always 1. ???
8(4) Size of index record ???
C(4) Number of clusters per index record ???
10(4) always 0x10. ???
14(4) Size of entries +0x10
18(4) ??? same value as 14 ???
1C(2) always 1. ???
1E(2) Flags ???
</pre>
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