From: arisawa@ar.aichi-u.ac.jp
To: 9fans@cse.psu.edu
Subject: Re: [9fans] plan9 username is not desired e-mail source
Date: Mon, 5 Aug 2002 05:39:22 +0900 [thread overview]
Message-ID: <20020804203928.B78B8199A3@mail.cse.psu.edu> (raw)
In-Reply-To: <76c4ce07e21c4afd8f6f34bfa8a4eaf9@plan9.bell-labs.com>
>Aliasmail -f is invoked by /mail/lib/remotemail,
>but only to get a sender's domain. The sender
>name can't be changed with it.
>
>Russ
The senders name can be chnaged in qmail.
The following is qmail for sender masquerade:
alice@aichi-u ac.jp is converted to arisawa@ar.aichi-u.ac.jp
where ar.aichi-u.ac.jp is this dom name.
Kenji Arisawa
#!/bin/rc
#
# qmail derivers a mail to a remote host
# $* are as follows:
#
# mail from arisawa@pc.aichi-u.ac.jp to junk@junk.com
# pc.aichi-u.ac.jp!arisawa net!junk.com junk
# (don't post to junk.com. this dom really exist now!)
#
# mail from postmaster to arisawa@pc.aichi-u.ac.jp:
# /dev/null net!pc.aichi-u.ac.jp arisawa
#
sender=$1
shift
addr=$1
shift
#
# for example
# $sender:
# alice -- from local mailes
# now smptd rejects a sender who pretends local
user.
# *!alice -- from remote machin
# ar!*!alice -- from remote machin via pipeto
# /dev/null -- from postmaster
# $addr:
# net!vega -- to remote hosts vega
# $*: recipient
# bob -- a user on vega
#
# OK flag
# 1: do sender masquering
# 0: no sender masquering
OK=0
#
# relay service and the sender masquering
#
dom=aichi-u.ac.jp
if(~ $sender (pc al)^.$dom!* ar!^(pc al)^.$dom!*){
ifs0=$ifs
ifs='!' s=`{echo -n $sender}
ifs=$ifs0
sender=$s(2)
if(~ $s(1) ar) sender=$s(3)
# echo $sysname: qmail-masq pettern OK $sender >> /sys/log/test
switch($sender){
case alice
OK=1
sender=arisawa
}
}
if(~ $OK 1){ # sender masquering
awk '
/^From |^Received:|^MBOX-Line:|^Message-ID:/{f=1;next}
/^From:/{f=1; print "From:","'$sender@ar.aichi-u.ac.jp'"; next}
/^[ \t]/ && f==1 {next}
/^$/{ print; while (getline>0) print $0}
/.+/{f=0;print $0}'|\
/bin/upas/qer /mail/queue mail $sender $addr $* || exit 1
/bin/upas/runq /mail/queue /mail/lib/remotemail</dev/null>/dev/null
>[2=1]
exit
}
#
# controll the sender's request to relay.
# If this is not a relay host, you should not answer the
request.
#
# relay request from a remote sender.
#
# local user can send a mail to anywhere
#
# full-path is required for $sender to be translated
correctlly
# otherwise the name is regarded as local name.
# example: if pc!arisawa is translated to
pc!arisawa@ar.aichi-u.ac.jp
#
/bin/upas/qer /mail/queue mail $sender $addr $* || exit 1
/bin/upas/runq /mail/queue /mail/lib/remotemail</dev/null>/dev/null
>[2=1]
exit 0
next prev parent reply other threads:[~2002-08-04 20:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-04 13:35 Russ Cox
2002-08-04 20:39 ` arisawa [this message]
2002-08-04 20:45 ` arisawa
2002-08-19 15:23 ` Boyd Roberts
-- strict thread matches above, loose matches on Subject: below --
2002-08-04 12:55 presotto
2002-08-03 23:48 presotto
2002-08-03 23:41 Russ Cox
2002-08-03 19:14 cdevilbiss
2002-08-03 18:40 colin
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