oops! wasn't finished yet. i guess i'm getting the hang of "publish
early and often"
it should be easy, as my unfinished shell is showing. i'm not sure if
i understand the behavior of spammers function when the output is
piped to another program. any ideas?
> has anyone noodled the idea? spamhaus provides a dns server that
> that can identify if an ip address is a known spammer[1]. i was thinking
> either directly in /sys/src/cmd/upas/smtp/spam.c or through a cs like
> program (parsing binary in shell?)
>
>
> cpue% whatis spammers
> fn spammers {@ {for(i in `{callers}){echo `{revip $i}^.zen.spamhaus.org
> ip}}|>[2]/dev/null aux/rdwr /net.alt/dns}
> cpue% whatis callers
> fn callers {netstat -n /net.alt|awk '$5 == "25" && $NF ~ /.*\..*\..*\./
> {print $NF}'}
> cpue% whatis revip
> fn revip {@ {ifs=(.^'
> ');i=`{echo $1};echo $i(4)^.^$i(3)^.^$i(2)^.^$i(1)}}
> cpue% spammers | grep 127
> cpue% spammers | sed 10q
> >
> cpue% spammers
> >
> >
> > 5.174.83.189.zen.spamhaus.org ip 127.0.0.11
