#!/usr/local/plan9/bin/rc

if(! ~ $#* 2){
	echo usage: netisdir system path >[1=2]
	exit usage
}

f=dostat
ns=`{namespace}
if(u test -S $ns/$1)
	f=$f^9p

t=/tmp/netisdir.$pid.$USER
fn sigexit { rm -f $t }

fn dostat {
	{
		echo !echo XXX connected
		echo cd $2
		echo !echo XXX directory exists
	}  | sftp -b - $1 >$t >[2=1]
	if(9 grep -s XXX.directory.exists $t){
		echo directory
		exit 0
	}
	if(9 grep -s 'is not a directory' $t){
		echo file
		exit 0
	}
	cat $t | sed 's/sftp> //g; /^$/d; /XXX/d; /^cd /d' >[1=2]
	if(! 9 grep -s XXX.connected $t){
		echo connect failed
		exit 0
	}
	echo nonexistent
	exit 0
}

fn dostat9p {
	if(! 9p ls -ld $1/$2 >$t >[2]/dev/null){
		echo nonexistent
		exit 0
	}
	if(9 grep -s '^d' $t){
		echo directory
		exit 0
	}
	echo file
	exit 0
}

$f $1 $2