misc/49050: t_tcpdump tries to do tcpdump a bridge if it exists

[ozaki-r%netbsd.org@localhost]

>Number:         49050
>Category:       misc
>Synopsis:       t_tcpdump tries to do tcpdump a bridge if it exists
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 29 09:30:00 +0000 2014
>Originator:     Ryota Ozaki
>Release:        current
>Organization:
>Environment:
rangeley# uname -a
NetBSD rangeley 6.99.49 NetBSD 6.99.49 (GENERIC) #3: Mon Jul 28 17:21:59 JST 
2014  ozaki-r@hidden:/hidden amd64

>Description:
tests/usr.sbin/tcpdump/t_tcpdump tries to do tcpdump all existing network 
interfaces,
even if it's a bridge. However, doing tcpdump on a bridge definitely fails. We 
should
skip bridges to make the test robust.
>How-To-Repeat:
ifconfig bridge0 create
cd /usr/tests
atf-run usr.sbin/tcpdump/t_tcpdump

>Fix:
Change t_tcpdump like this:

promiscuous_body() {

        for i in $(ifconfig -l); do
                case $i in
                bridge*)
                        echo "Skipping $i"
                        continue
                esac

                echo "Testing $i"
                prom $i
        done
}