Plan 9 from Bell Labs’s /usr/web/sources/contrib/nemo/root/sys/src/cmd/mail2fs/mspool

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


#!/bin/rc

rfork ne


fn deliver {
	sed '1,/^$/d' $1 > body.$1
	sed '/^$/q' $1 > hdr.$1
	addrs=`{grep -i '^To: ' hdr.$1 | sed 's/^To: //'}
	ccs=`{grep -i '^Cc: ' hdr.$1 | sed 's/^Cc: //'}
	atts=`{grep -i '^Attach: ' hdr.$1 | sed 's/^Attach: //' }
	incl=`{grep -i '^Include: ' hdr.$1 | sed 's/^Include: //' }
	repl=`{grep -i '^Replying: ' hdr.$1 | sed 's/^Replying: //' }
	xaddrs=$addrs
	xccs=$ccs
	if (! ~ $#ccs 0)
		ccs=-C^$ccs
	if (! ~ $#atts 0)
		atts=-a^$atts
	if (! ~ $#incl 0)
		incl=-A^$incl
	if (! ~ $#repl 0){
		if(! test -f $repl && test -f /mail/box/$user/msgs/$repl)
			repl=/mail/box/$user/msgs/$repl
		if(! test -f $repl){
			arepl=`{echo $repl | sed 's,(.*)/([0-9]+)/raw,\1/a.\2/raw,'}
			if(test -f $arepl)
				repl=$arepl
			if(test -f /mail/box/$user/msgs/$arepl)
				repl=/mail/box/$user/msgs/$arepl
		}
		if(! test -f $repl){
			echo orginal message not found >[1=2]
			exit orig
		}
		upas/fs -p -f $repl
		repl=-R/mail/fs/mbox/1
	}
	{
		for(t in $xaddrs)
			echo 'To: '^$"t
		for(t in $xccs)
			echo 'Cc: '^$"t
	} > addrs.$1
	{ cat addrs.$1 ; grep -vi '^(To|Cc|Attach|Include|Replying): ' hdr.$1 ; cat body.$1 } | {
		if ( upas/marshal $repl $atts $incl $ccs $addrs >[2] errs.$1 ) {
			rm  errs.$1 hdr.$1  body.$1 addrs.$1 $1
		} 
		if not {
			echo spool: upas/marshal $repl $atts $incl $ccs $addrs
			{ cat errs.$1 ; q ': ' hdr.$1 body.$1 } | mail -s'returned mail' $user
			mv $1 Fail.$1
		}
	}
	unmount /mail/fs
}

mkdir -p /mail/box/$user/out
cd /mail/box/$user/out || exit nombox

for (m in [0-9]*) {
	if (test -e $m)
		deliver $m
}
exit ''

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