plan9fox/rc/bin/rexport

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#!/bin/rc
rfork e
argv0=$0
fn usage {
echo 'usage:' $argv0 '[-abcCnq] [-s remotename] [-m remotemtpt] [-u user] [-k keypattern] [-P patternfile] [-p] [-t timeout] tree host [remotecmd [args ...]]' >[1=2]
exit 'usage'
}
fn domount {
if(~ $#sname 1){
rm -f /srv/$sname
echo -n 0 >/srv/$sname
}
~ $#mtpt 0 || mount -n $mopt /fd/0 $mtpt || exit
~ $#cmd 0 || service=import exec $cmd </dev/null >/dev/null >[2=1]
}
sname=()
mopt=()
mtpt=()
exportfs=/bin/exportfs
connect=/bin/rconnect
while(~ $1 -*){
switch($1){
case -p; connect=($connect $1)
case -[abcCnq]*; mopt=($mopt $1)
case *
~ $#* 1 && usage
switch($1){
case -P; exportfs=($exportfs $1 $2)
case -[ukt]; connect=($connect $1 $2)
case -s; sname=`{basename $2}
case -m; mtpt=$2
case *; usage
}
shift
}
shift
}
~ $#* 0 1 && usage
exportfs=($exportfs -r $1)
shift
host=$1
shift
cmd=$*
fn pvar {
while(! ~ $#* 0){
~ $#$1 0 && echo $1'=()' ||
path=/dev/null builtin whatis $1
shift
}
}
exec $connect $host <{pvar sname mtpt mopt cmd; builtin whatis domount; echo domount} exec $exportfs