[ILUG] mail hubs revisited...

[kevin lyda]

this is my solution.  thanks for the other suggestions, but i don't
have root access to the machine that is my mailhub.  kenn humborg's
uucp obsession, which i share, is to be credited for seeding the idea
that led to this, however i should mention that kenn had nothing to
do with the actual scripts or the solution.  i think he'd kill me if
i implied otherwise.

obviously if you find these useful, psychiatric help is not an unthinkable
option.

anyway, uucp to the mailhub via shell script uucp:

these changes to my sendmail.mc:
    dnl UUCP hack - edit mailer/uucp.m4.  append " U=kevin:kevin," to the
    dnl line starting with Muucp-dom
    define(`UUCP_MAILER_PATH', /home/kevin/bin/suux)
    define(`UUCP_MAILER_ARGS', `suux $u')
    define(`SMART_HOST', `uucp-dom:suberic')

and at the end of the file:
    MAILER(uucp)

then there are these three utilities: suux, suuq, smail (uploaded to the
mail hub and then run once every 5 minutes).

suux:
    #!/bin/sh
    SPOOL=/home/kevin/.suux.spool

    locked=0
    while [ $locked -eq 0 ]; do
	lock=`mktemp $SPOOL/mail.XXXXXX`
	rcpt=$lock.rcpt
	body=$lock.body
	if [ ! -f $rcpt -a ! -f $body ] ; then
	    rm $lock
	    locked=1
	fi
    done
    echo "$*" > $rcpt
    cat > $body
    rm $lock
    exit 0

suuq:
    #!/bin/sh
    SPOOL=/home/kevin/.suux.spool
    RDIR=.suux.spool
    RSPOOL=suberic.net:$RDIR

    # work to do?
    cd $SPOOL || exit 1
    lockfile -r 10 process.lock || exit 1
    files=`echo *.rcpt`
    if [ "$files" = "*.rcpt" ]; then
	rm -f process.lock
	exit 0
    fi

    # get messages to upload to suberic.
    for rcpt in *.rcpt; do
	lock=`basename $rcpt .rcpt`
	if [ ! -f $lock ]; then
	    body=$lock.body
	    touch $lock
	    scp -q $lock $rcpt $body $RSPOOL/ && rm $lock $rcpt $body
	    ssh suberic.net -C rm $RDIR/$lock
	fi
    done
    rm -f process.lock

smail:
    #!/bin/sh
    SPOOL=/home/kevin/.suux.spool

    # work to do?
    cd $SPOOL || exit 1
    lockfile -r 10 process.lock || exit 1
    files=`echo *.rcpt`
    if [ "$files" = "*.rcpt" ]; then
	rm -f process.lock
	exit 0
    fi

    # send messages
    for rcpt in *.rcpt; do
	lock=`basename $rcpt .rcpt`
	if [ ! -f $lock ]; then
	    body=$lock.body
	    cat $body | /usr/lib/sendmail -oi `cat $rcpt` && rm $body $rcpt
	fi
    done
    rm -f process.lock

kevin

-- 
kevin at suberic.net        q: what's the difference between batman & b. gates?
fork()'ed on 37058400    a: when batman fought the penguin, he won.
meatspace place: home                             http://suberic.net/~kevin/
 >> want privacy? www.gnupg.org or www.pgp.com.  encrypted mail preferred <<