From 4c1a4dcda1821ff40cfbb03247e6a391ebf47f3e Mon Sep 17 00:00:00 2001
From: Gary Benson <gbenson@redhat.com>
Date: Tue, 29 Aug 2006 08:15:29 +0000
Subject: [PATCH] 2006-08-29  Gary Benson  <gbenson@redhat.com>

	* java/net/SocketPermission.java
	(maybeBracketIPv6Address): New method.
	(<init>): Pass the hostport argument through the above.

	* java/net/NetworkInterface.java (getInetAddresses):
	Revert the previous change.

From-SVN: r116557
---
 libjava/classpath/ChangeLog.gcj               |  9 ++++
 .../classpath/java/net/NetworkInterface.java  |  5 +-
 .../classpath/java/net/SocketPermission.java  | 48 ++++++++++++++++++-
 3 files changed, 56 insertions(+), 6 deletions(-)

diff --git a/libjava/classpath/ChangeLog.gcj b/libjava/classpath/ChangeLog.gcj
index fda8d79d45f..adac6b7f02b 100644
--- a/libjava/classpath/ChangeLog.gcj
+++ b/libjava/classpath/ChangeLog.gcj
@@ -1,3 +1,12 @@
+2006-08-29  Gary Benson  <gbenson@redhat.com>
+
+	* java/net/SocketPermission.java
+	(maybeBracketIPv6Address): New method.
+	(<init>): Pass the hostport argument through the above.
+
+	* java/net/NetworkInterface.java (getInetAddresses):
+	Revert the previous change.
+
 2006-08-24  Gary Benson  <gbenson@redhat.com>
 
 	* java/net/NetworkInterface.java (getInetAddresses): Bracket IPv6
diff --git a/libjava/classpath/java/net/NetworkInterface.java b/libjava/classpath/java/net/NetworkInterface.java
index f6db01b7182..47b1c67cae7 100644
--- a/libjava/classpath/java/net/NetworkInterface.java
+++ b/libjava/classpath/java/net/NetworkInterface.java
@@ -112,10 +112,7 @@ public final class NetworkInterface
 	InetAddress addr = (InetAddress) addresses.nextElement();
 	try
 	  {
-	    String hostAddress = addr.getHostAddress();
-	    if (addr instanceof Inet6Address)
-	      hostAddress = "[" + hostAddress + "]";
-	    s.checkConnect(hostAddress, 58000);
+	    s.checkConnect(addr.getHostAddress(), 58000);
 	    tmpInetAddresses.add(addr);
 	  }
 	catch (SecurityException e)
diff --git a/libjava/classpath/java/net/SocketPermission.java b/libjava/classpath/java/net/SocketPermission.java
index 723ccc7a5b5..a722fcad4e5 100644
--- a/libjava/classpath/java/net/SocketPermission.java
+++ b/libjava/classpath/java/net/SocketPermission.java
@@ -164,12 +164,56 @@ public final class SocketPermission extends Permission implements Serializable
    */
   public SocketPermission(String hostport, String actions)
   {
-    super(hostport);
+    super(maybeBracketIPv6Address(hostport));
 
-    setHostPort(hostport);
+    setHostPort(getName());
     setActions(actions);
   }
 
+  /**
+   * IPv6 addresses in the hostport must either be enclosed by
+   * "[" and "]" or be specified in the full uncompressed form.
+   * In the latter case proprietary JVMs will quote the address
+   * with "[" and "]", so we do to.
+   */
+  private static String maybeBracketIPv6Address(String hostport)
+  {
+    if (hostport.length() == 0 || hostport.charAt(0) == '[')
+      return hostport;
+
+    int colons = 0, last_colon = 0;
+    for (int i = 0; i < hostport.length(); i++)
+      {
+	if (hostport.charAt(i) == ':')
+	  {
+	    if (i - last_colon == 1)
+	      throw new IllegalArgumentException("Ambiguous hostport part");
+	    colons++;
+	    last_colon = i;
+	  }
+      }
+
+    switch (colons)
+      {
+      case 0:
+      case 1:
+	// a hostname or IPv4 address
+	return hostport;
+	
+      case 7:
+	// an IPv6 address with no ports
+	return "[" + hostport + "]";
+
+      case 8:
+	// an IPv6 address with ports
+	return "[" + hostport.substring(0, last_colon) + "]"
+	  + hostport.substring(last_colon);
+
+      default:
+	throw new IllegalArgumentException("Ambiguous hostport part");
+      }
+  }
+  
   /**
    * Parse the hostport argument to the constructor.
    */