plan9front/rc/bin/iwhois

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#!/bin/rc
# iwhois [-n] domain - print registration data for domain
rfork e
if (~ $#* 1 && ~ $1 -n)
noboiler=yes
person=`{echo $1|sed s/@.*//}
fn boilerplate { sed -n '/^[ ]*[A-Za-z][A-Za-z]*:$/,$p' $* }
switch($1){
case *@*
machine=`{echo $1|sed s/.*@//}
case *.ca
machine=whois.cira.ca
fn boilerplate { grep -v ':[ ]*$' $* }
case *.us
machine=whois.nic.us
fn boilerplate { sed '/^>* Whois database was last updated on/,$d' $* }
case *.co.uk *.net.uk *.org.uk
machine=whois.nic.uk
fn boilerplate { sed '/^ +WHOIS database last updated at/,$d' $* }
case *.ac.uk
machine=whois.ja.net
case *.au
machine=whois.aunic.net
fn boilerplate { grep -v ':[ ]*$' $* }
case *.be
machine=whois.dns.be
person='-T dn '^$person
fn boilerplate { cat $* }
case *.cn
machine=whois.cnnic.net.cn
fn boilerplate { cat $* }
case *.de
machine=whois.denic.de
person='-T dn '^$person
fn boilerplate { cat $* }
case *.dk
machine=whois.dk-hostmaster.dk
fn boilerplate { grep -v '^#' $* }
case *.es
echo no known whois server for .es
exit
case *.fr
machine=whois.nic.fr
fn boilerplate { grep -v '^%%' $* }
case *.in
machine=whois.inregistry.net
fn boilerplate { cat $* }
case *.jp
machine=whois.jprs.jp
person=$person^'/e'
fn boilerplate { cat $* }
case *.se
machine=whois.nic-se.se
fn boilerplate { grep -v '^#' $* | uniq }
case [0-9]*.[0-9]*.[0-9]*.[0-9]*
machine=whois.arin.net
fn boilerplate { cat $* }
case *
machine=whois.internic.net # alternate: whois.networksolutions.com
fn boilerplate { cat $* }
}
if (~ $noboiler yes)
fn boilerplate { cat $* }
file=/tmp/iwhois$pid
fn sigexit {
rm -f $file
}
echo $person | telnet -nr tcp!$machine!whois > $file
x=`{ sed -n -e 's/.*Whois Server: (.*)/\1/p' \
-e 's;.*ReferralServer: whois://(.*)(:43)?;\1;p' $file }
switch($#x){
case 0
; # e.g., for .ca
case 1
# chase the referral chain
echo $person | telnet -nr tcp!$x!whois > $file
case *
# echo $0: buggery: `{echo $x | tr ' ' '\12' | sort -u} >[1=2]
echo $person | telnet -nr tcp!^$x(1)^!whois > $file
}
if (test ! -s $file) {
echo $0: broken whois server tcp!$x!whois returned no data >[1=2]
exit broken
}
boilerplate $file
rm $file