harvey/rc/bin/fax

#!/bin/rc
# fax [-v] telephone-number recipient [file ...] - send files via fax
rfork e
view=no
stdin=no

fn usage {
	echo 'usage: fax [-v] telephone-number recipient [file ...]' >[1=2]
	exit usage
}

switch($1){
case -v
	view=yes
	shift
}

switch ($#*) {
case 0 1
	usage
case 2
	stdin=yes
}
telno=`{echo $1|sed 's/[ \-]//g'}
shift

if (! ~ $telno [0-9]* +[0-9]*)
	usage

# our old phone system needed *9 to get outside; the new one just needs 9
switch($telno){
case ???????
	telno='9,'^$telno
case ??????????
	telno='9,1'^$telno
case 1??????????
	telno='9,'^$telno
case 011*
	telno='9,'^$telno
case +*
	telno=`{echo $telno | sed 's/\+/9,011/'}
}

recip=$1
shift

script=/tmp/fax.$pid
header=/tmp/faxh.$pid
user=`{cat /dev/user}
tmp=/tmp/fax.g3.$pid
tmpin=/tmp/fax.in.$pid
tmpps=/tmp/fax.ps.$pid
tel=`{grep '\) '$user /lib/tel}
myname=`{echo $tel | sed 's/ \(.*//'}
if (~ $#myname 0)
	myname=''
ext=`{echo $tel | sed 's/.*\) [^ ]* [^ ]* ([^ ]*).*/\1/'}

fn sigexit {
	rm -f $tmp.* $script $header $header.* $tmpin $tmpps
}
fn sigint {
	sigexit
	exit interrupt
}

# gather input into a file
switch($stdin){
case yes
	cat >$tmpin
	infiles=$tmpin
case *
	infiles=($*)
}

# convert to g3
g3files=()
a=1
for(i in $infiles){
	switch(`{file $i}){
	case *:*g3* *:*fax*
		g3files=($g3files $i)
	case *:*postscript
		gs -dSAFER '-sDEVICE=dfaxlow' '-sOUTPUTFILE='$tmp'.'$#a'.%03d' \
			-dNOPAUSE -dQUIET $i quit.ps
		g3files=($g3files $tmp.$#a.*)
	case *
		lp -dstdout $i >$tmpps
		gs -dSAFER '-sDEVICE=dfaxlow' '-sOUTPUTFILE='$tmp'.'$#a'.%03d' \
			-dNOPAUSE -dQUIET $tmpps quit.ps
		g3files=($g3files $tmp.$#a.*)
	}
	a=($a 1)		# count by increasing list length
}

pages=`{echo $g3files|wc -w}

# use delimiters that are unlikely to be supplied in arguments
{
	echo -n s∮FAXddd∮
	echo -n `{date}		# treat `{} output list specially
	echo ∮
	echo s∮FAXFFF∮$"myname^∮
	echo s∮FAXEEE∮$"user^∮
	echo s∮FAXVVV∮$"ext^∮
	echo s∮FAXTTT∮$"recip^∮
	echo s∮FAXfff∮$"telno^∮
	echo s∮FAXPPP∮$"pages^∮
} >>$script
sed -f $script /sys/lib/fax/h.ps >$header

gs -dSAFER '-sDEVICE=dfaxlow' '-sOUTPUTFILE='$header'.%03d' \
	-dNOPAUSE -dQUIET $header quit.ps

files=()
for(i in $header.* $g3files){
	files=($files -f $i)
}

switch($view){
case yes
	page $header.* $g3files
case *
	upas/qer $files /mail/faxoutqueue fax $user $telno	</dev/null
	rx fax /sys/lib/fax/faxgoose				</dev/null
}