Hi Ray,
Well, the Ethereal capture dialog already has some (basic) stop triggers 
(such as "Stop after N packets").  Also, if you want to stop the capture 
after some upper layer protocol event then it should probably be done in 
Ethereal (in which those upper layer protocol events would be dissected) 
instead of libpcap...
You might want to start looking in "gtk/capture_dlg.c" for how the 
current stop triggers are implemented.
Regards,
-Jeff
Ray.Rizzuto@xxxxxxxxxxx wrote:
Hi!
I'd like to be able to define a start/stop capture trigger.  I'd think 
the syntax would be the same as the capture filters.  I don't know if 
this is an Ethereal enhancement and/or a libpcap enhancement.
Ray
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