[Click] How to write to /proc in a click element

[Harald Schiöberg]

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Ashish Sharma wrote:
> Hi,
> 
> Can someone please advise me how to write something in /proc/sys in a click
> event? I need to change the channel in MadWifi upon reception of a control
> packet. I am planning on writing a sysctl handler in madwifi to change the
> channel upon request, and I need to trigger it using Click. If someone has a
> better suggestion to do this - I'll be glad to know!
> 
> Thanks for your help and time.

Since there are no proper callback handlers in click
( hidden feature request ;-) ,
that is my way of doing these things for userlevel click:

* Your element:
click_chatter("CHANGE_PROC: yourstuff")


* Some script.pl (or whatever you like)

chattersock=IO::Socket.new(stuff)
while ( line = chattersock.read_line ) {
	if line = ~ /^CHANGE_PROC: (.*)/ {
	    doing stuff with $1
	}
}
	

kernel level click should have a similar output channel....


- --
Harald Schiöberg
Technische Universität Berlin | T-Laboratories | FG INET
www: http://www.net.t-labs.tu-berlin.de
Phone: +49-(0)30-8353-58476 | Fax: +49-(0)391 534 783 47
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