STREAM Max Matchsize logging

Hi,

Not sure to fully understand your problem, here an irule developed to log headers exceeding a defined size :

when HTTP_REQUEST {

    set LogHttpHeader " "
    set max_size 4096 

    foreach aHeader [HTTP::header names] {
        if { [string length [HTTP::header $aHeader]] >= $max_size } {
            append LogHttpHeader "header $aHeader exceed the defined max size;"
        }       
    }    

    log local0. "$LogHttpHeader"
}

If this is not what you are looking for, can you elaborate a bit your need ?