Bug 4230 - Invalid DatagramSocket option
Invalid DatagramSocket option
Status: CLOSED DEFERRED
Product: Red Hat Linux
Classification: Retired
Component: netscape (Show other bugs)
6.0
i386 Linux
medium Severity medium
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Assigned To: David Lawrence
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Depends On:
Blocks:
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Reported: 1999-07-27 17:54 EDT by gailizhao
Modified: 2008-05-01 11:37 EDT (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 1999-08-24 12:38:26 EDT
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Description gailizhao 1999-07-27 17:54:01 EDT
Hi,

I have an applet that performs a multicast function on a
Linux machine.  The browser is Netscape communicator 4.51.
The applet is a signed applet and has passed
the "Multicast" privilege checking when the applet is
executed. Right after the privilege checking, the applet
attempts to instantiate a multicastSocket with the
following code: DatagramSocket socket = new MulticastSocket
(6666); At this point, a SocketException occurrs.

The Stack traces are:
invalid DatagramSocket option
at java.net.PlainDatagramSocketImpl.setOption
(PlainDatagramSocketImpl.java:156)
at java.net.MulticastCreate (MulticastSocket.java:111)
at java.net.DatagramSocket. (DatagramSocket.java:115)
at java.net.DatagramSocket. (DatagramSocket.java:101)
at java.net.MulticastSocket. (MulticastSocket.java:92)
at inria.net.MulticastSession.run
(MulticastSession.java:205)  applet code
at java.lang.Thread.run (Thread.java:504)

Note: The same applet running with Netscape communicator
4.51 under Windows is OK.

Can someone tell me what's the cause of this problem?

Thanks.

Larry Hsiao
Foresyte Technologies, Inc.
Comment 1 Bill Nottingham 1999-07-29 12:42:59 EDT
Do you have multicast support compiled into your kernel?
Comment 2 Bill Nottingham 1999-08-24 12:38:59 EDT
Corfirmed and reported to Netscape. Unfortunately, since we
don't control the netscape source code, we can't really
fix this.

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