From 978628d67994819f0b3b9e2a0834d8941a21f6b5 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Sat, 3 Dec 2016 00:24:19 +0100
Subject: [PATCH] tcp17019: make service proto and netdir arguments optional
 (for aux/listen1)

this allows /rc/bin/service/tcp17019 to be called from
aux/listen1 without arguments like:

aux/listen1 tcp!*!rcpu /rc/bin/service/tcp17019
---
 rc/bin/service/tcp17019 | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/rc/bin/service/tcp17019 b/rc/bin/service/tcp17019
index 6953f5984..0bdd5592b 100755
--- a/rc/bin/service/tcp17019
+++ b/rc/bin/service/tcp17019
@@ -1,8 +1,10 @@
 #!/bin/rc
-netdir=$3
-remote=$2!`{cat $3/remote}
+if(~ $#* 3){
+	netdir=$3
+	remote=$2!`{cat $3/remote}
+}
 fn server {
-	echo -n $netdir $remote >/proc/$pid/args
+	~ $#remote 0 || echo -n $netdir $remote >/proc/$pid/args
 	rm -f /env/'fn#server'
 	. <{n=`{read} && ! ~ $#n 0 && read -c $n} >[2=1]
 }