From ffde862e033a0825e1e9972a89c0f1f80b261a8e Mon Sep 17 00:00:00 2001
From: mark <mark@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 14 Aug 2006 23:12:35 +0000
Subject: 2006-08-14  Mark Wielaard  <mark@klomp.org>

       Imported GNU Classpath 0.92
       * HACKING: Add more importing hints. Update automake version
       requirement.

       * configure.ac (gconf-peer): New enable AC argument.
       Add --disable-gconf-peer and --enable-default-preferences-peer
       to classpath configure when gconf is disabled.
       * scripts/makemake.tcl: Set gnu/java/util/prefs/gconf and
       gnu/java/awt/dnd/peer/gtk to bc. Classify
       gnu/java/security/Configuration.java as generated source file.

       * gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java,
       gnu/java/lang/management/VMClassLoadingMXBeanImpl.java,
       gnu/java/lang/management/VMRuntimeMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryManagerMXBeanImpl.java,
       gnu/java/lang/management/VMThreadMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryMXBeanImpl.java,
       gnu/java/lang/management/VMCompilationMXBeanImpl.java: New VM stub
       classes.
       * java/lang/management/VMManagementFactory.java: Likewise.
       * java/net/VMURLConnection.java: Likewise.
       * gnu/java/nio/VMChannel.java: Likewise.

       * java/lang/Thread.java (getState): Add stub implementation.
       * java/lang/Class.java (isEnum): Likewise.
       * java/lang/Class.h (isEnum): Likewise.

       * gnu/awt/xlib/XToolkit.java (getClasspathTextLayoutPeer): Removed.

       * javax/naming/spi/NamingManager.java: New override for StackWalker
       functionality.

       * configure, sources.am, Makefile.in, gcj/Makefile.in,
       include/Makefile.in, testsuite/Makefile.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116139 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libjava/classpath/java/io/File.java | 46 +++++++++++++++++++++++++++++++------
 1 file changed, 39 insertions(+), 7 deletions(-)

(limited to 'libjava/classpath/java/io/File.java')

diff --git a/libjava/classpath/java/io/File.java b/libjava/classpath/java/io/File.java
index 43e8e5ded6c..ce56876cc22 100644
--- a/libjava/classpath/java/io/File.java
+++ b/libjava/classpath/java/io/File.java
@@ -1,5 +1,5 @@
 /* File.java -- Class representing a file on disk
-   Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005
+   Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006
    Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
@@ -82,7 +82,7 @@ public class File implements Serializable, Comparable
   
   /**
    * This is the string that is used to separate the host name from the
-   * path name in paths than include the host name.  It is the value of
+   * path name in paths that include the host name.  It is the value of
    * the <code>path.separator</code> system property.
    */
   public static final String pathSeparator
@@ -484,9 +484,9 @@ public class File implements Serializable, Comparable
   /**
    * This method returns a canonical representation of the pathname of
    * this file.  The actual form of the canonical representation is
-   * different.  On the GNU system, the canonical form differs from the
-   * absolute form in that all relative file references to "." and ".."
-   * are resolved and removed.
+   * system-dependent.  On the GNU system, conversion to canonical
+   * form involves the removal of redundant separators, references to
+   * "." and "..", and symbolic links.
    * <p>
    * Note that this method, unlike the other methods which return path
    * names, can throw an IOException.  This is because native method 
@@ -542,7 +542,8 @@ public class File implements Serializable, Comparable
   /**
    * This method returns a <code>String</code> the represents this file's
    * parent.  <code>null</code> is returned if the file has no parent.  The
-   * parent is determined via a simple operation which removes the
+   * parent is determined via a simple operation which removes the name
+   * after the last file separator character, as determined by the platform.
    *
    * @return The parent directory of this file
    */
@@ -1199,7 +1200,38 @@ public class File implements Serializable, Comparable
    */
   public static File[] listRoots()
   {
-    return VMFile.listRoots();
+    File[] roots = VMFile.listRoots();
+    
+    SecurityManager s = System.getSecurityManager();
+    if (s != null)
+      {
+	// Only return roots to which the security manager permits read access.
+	int count = roots.length;
+	for (int i = 0; i < roots.length; i++)
+	  {
+	    try
+	      {
+        	s.checkRead (roots[i].path);		
+	      }
+	    catch (SecurityException sx)
+	      {
+	        roots[i] = null;
+		count--;
+	      }
+	  }
+	if (count != roots.length)
+	  {
+	    File[] newRoots = new File[count];
+	    int k = 0;
+	    for (int i = 0; i < roots.length; i++)
+	      {
+	        if (roots[i] != null)
+		  newRoots[k++] = roots[i];
+	      }
+	    roots = newRoots;
+	  }
+      }
+    return roots;
   }
 
   /**
-- 
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