Issue1043

classification

Title:	Special broadcast host address is not supported.
Type:		Severity:	normal
Components:	Library	Versions:	2.2.2
		Milestone:

process

Status:	closed	Resolution:	fixed
Dependencies:		Superseder:
Assigned To:	amak	Nosy List:	amak
Priority:	normal	Keywords:

Created on 2008-06-01.22:47:30 by amak, last changed 2009-01-29.21:00:41 by amak.

Files
File name	Uploaded	Description	Edit	Remove
Client.java	amak, 2008-12-19.14:30:02	Clien side of UDP broadcast
Server2.java	amak, 2008-12-19.14:30:39

Messages
msg3213 (view)	Author: Alan Kennedy (amak)	Date: 2008-06-01.22:47:29
There is a special host address string "<broadcast>", as used by cpython, is not supported on jython. Although support for the SO_BROADCAST flag on UDP sockets is supported, broadcast support may not be available in a portable way until the "<broadcast>" address is supported.
msg3292 (view)	Author: Alan Kennedy (amak)	Date: 2008-06-19.13:38:13
This is quite a complex subject, because both cpython and java behave differently for different bind addresses on different platforms. Here are some links which discuss the topic Java http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4212324 http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4191980 http://bugs.sun.com/view_bug.do?bug_id=6579726 http://mail.openjdk.java.net/pipermail/net-dev/2008-February/000138.html Cpython http://mail.python.org/pipermail/python-list/2003-February/189535.html http://mail.python.org/pipermail/python-list/2003-April/201645.html http://mail.python.org/pipermail/python-list/2007-April/434587.html http://mail.python.org/pipermail/python-dev/2006-May/065443.html So, I'm going to have to do a lot of experimentation to see what the recommended approach is for implementing broadcast on jython. More soon.
msg3968 (view)	Author: Alan Kennedy (amak)	Date: 2008-12-19.14:30:02
Adding the client side of some java code that I've been experimenting with.
msg3969 (view)	Author: Alan Kennedy (amak)	Date: 2008-12-19.14:30:39
Adding the server side of some java code I've been experimenting with.
msg3970 (view)	Author: Alan Kennedy (amak)	Date: 2008-12-19.17:05:32
Fix checked in at r5782. Note that when bind to UDP broadcast endpoints, the host constant "" or socket.INADDR_ANY should be used. When sendto'ing broadcast endpoints, the host constant "<broadcast>" or socket.INADDR_BROADCAST should be used.
msg4108 (view)	Author: Alan Kennedy (amak)	Date: 2009-01-29.21:00:41
Also checked the fix for this into release 2.2 maint at r6002.

History
Date	User	Action	Args
2009-01-29 21:00:41	amak	set	messages: + msg4108
2008-12-19 17:05:32	amak	set	status: open -> closed resolution: fixed messages: + msg3970
2008-12-19 14:30:40	amak	set	files: + Server2.java messages: + msg3969
2008-12-19 14:30:03	amak	set	files: + Client.java messages: + msg3968
2008-12-17 19:52:10	fwierzbicki	set	priority: normal
2008-06-19 13:38:14	amak	set	messages: + msg3292
2008-06-01 22:47:30	amak	create