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XFileExtensionAccessor
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com.sun.nfs</FONT>
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Class XFileExtensionAccessor</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../com/sun/xfile/XFileExtensionAccessor.html" title="class in com.sun.xfile">com.sun.xfile.XFileExtensionAccessor</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.sun.nfs.XFileExtensionAccessor</B>
</PRE>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../com/sun/nfs/nfsXFileExtensionAccessor.html" title="class in com.sun.nfs">nfsXFileExtensionAccessor</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>XFileExtensionAccessor</B><DT>extends <A HREF="../../../com/sun/xfile/XFileExtensionAccessor.html" title="class in com.sun.xfile">XFileExtensionAccessor</A></DL>
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<TD><CODE><B><A HREF="../../../com/sun/nfs/XFileExtensionAccessor.html#XFileExtensionAccessor(com.sun.xfile.XFile)">XFileExtensionAccessor</A></B>(<A HREF="../../../com/sun/xfile/XFile.html" title="class in com.sun.xfile">XFile</A> xf)</CODE>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sun/nfs/XFileExtensionAccessor.html#getExports()">getExports</A></B>()</CODE>
<BR>
Get server's export list</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sun/nfs/XFileExtensionAccessor.html#loginPCNFSD(java.lang.String, java.lang.String, java.lang.String)">loginPCNFSD</A></B>(java.lang.String host,
java.lang.String username,
java.lang.String password)</CODE>
<BR>
Sets the user's RPC credential from Login name and password.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sun/nfs/XFileExtensionAccessor.html#loginUGID(int, int, int[])">loginUGID</A></B>(int uid,
int gid,
int[] gids)</CODE>
<BR>
Sets the user's RPC credential to a known uid/gid.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sun/nfs/XFileExtensionAccessor.html#logoutPCNFSD()">logoutPCNFSD</A></B>()</CODE>
<BR>
Sets the user's RPC credential to "nobody"</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sun/nfs/XFileExtensionAccessor.html#logoutUGID()">logoutUGID</A></B>()</CODE>
<BR>
Sets the user's RPC credential to "nobody"</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../com/sun/nfs/XFileExtensionAccessor.html#setNfsHandler(com.sun.nfs.NfsHandler)">setNfsHandler</A></B>(<A HREF="../../../com/sun/nfs/NfsHandler.html" title="class in com.sun.nfs">NfsHandler</A> handler)</CODE>
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Assigns an NfsHandler class that allows
the application to receive RPC timeout
notifications.</TD>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<A NAME="XFileExtensionAccessor(com.sun.xfile.XFile)"><!-- --></A><H3>
XFileExtensionAccessor</H3>
<PRE>
public <B>XFileExtensionAccessor</B>(<A HREF="../../../com/sun/xfile/XFile.html" title="class in com.sun.xfile">XFile</A> xf)</PRE>
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<A NAME="loginPCNFSD(java.lang.String, java.lang.String, java.lang.String)"><!-- --></A><H3>
loginPCNFSD</H3>
<PRE>
public boolean <B>loginPCNFSD</B>(java.lang.String host,
java.lang.String username,
java.lang.String password)</PRE>
<DL>
<DD>Sets the user's RPC credential from Login name and password.
Every NFS request includes a "credential" that identifies the user.
An AUTH_SYS credential includes the user's UID and GID values.
These are determined from the user's login name (and password)
by the PCNFSD service that must be available on a local server.
Once the credential is set, it is assigned globally to all
future NFS XFile objects.
<p>
If this method is not called, a default credential is assigned
with a UID and GID of "nobody".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE><code>host</code></CODE> - The name of the host that runs the PCNFSD service.
This does not have to be an NFS server.<DD><CODE><code>username</code></CODE> - The user's login name.<DD><CODE><code>password</code></CODE> - The user's password.
This is obscured before transmission to the PCNFSD server.
<DT><B>Returns:</B><DD>true if the login succeeded, false otherwise.</DL>
</DD>
</DL>
<HR>
<A NAME="logoutPCNFSD()"><!-- --></A><H3>
logoutPCNFSD</H3>
<PRE>
public void <B>logoutPCNFSD</B>()</PRE>
<DL>
<DD>Sets the user's RPC credential to "nobody"
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="loginUGID(int, int, int[])"><!-- --></A><H3>
loginUGID</H3>
<PRE>
public void <B>loginUGID</B>(int uid,
int gid,
int[] gids)</PRE>
<DL>
<DD>Sets the user's RPC credential to a known uid/gid.
Assumes that the calling application has already
authenticated the user and has obtained to uid/gid
itself.
<p>
<i>Note: This credential setting method exposes an
inherent security hole in RPC AUTH_SYS authentication.
The server trusts the client to authenticate the
user before setting the UID and GID values. It is
possible for a malicious client to allow the UID and/or
group ids to be set to allow unauthorized access to
other user's files on the server.
<p>
Servers can avoid this security hole by exporting NFS
filesystem securely - requiring clients to use secure
Diffie-Hellman or Kerberos credentials.
</i>
<p>
If this method is not called, a default credential is assigned
with a UID and GID of "nobody".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE><code>uid</code></CODE> - The user-ID.<DD><CODE><code>gid</code></CODE> - The group-ID.<DD><CODE><code>gids</code></CODE> - The group-ID list.</DL>
</DD>
</DL>
<HR>
<A NAME="logoutUGID()"><!-- --></A><H3>
logoutUGID</H3>
<PRE>
public void <B>logoutUGID</B>()</PRE>
<DL>
<DD>Sets the user's RPC credential to "nobody"
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setNfsHandler(com.sun.nfs.NfsHandler)"><!-- --></A><H3>
setNfsHandler</H3>
<PRE>
public void <B>setNfsHandler</B>(<A HREF="../../../com/sun/nfs/NfsHandler.html" title="class in com.sun.nfs">NfsHandler</A> handler)</PRE>
<DL>
<DD>Assigns an NfsHandler class that allows
the application to receive RPC timeout
notifications. The <code>handler</code> is used for all
NFS files accessed by the application.
The default handler can be restored by
passing a null <code>handler</code> argument.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE><code>handler</code></CODE> - An instance of the NfsHandler class.</DL>
</DD>
</DL>
<HR>
<A NAME="getExports()"><!-- --></A><H3>
getExports</H3>
<PRE>
public java.lang.String[] <B>getExports</B>()
throws java.net.UnknownHostException,
java.io.IOException</PRE>
<DL>
<DD>Get server's export list
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.net.UnknownHostException</CODE>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
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