check for failure from kx

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@815 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/kx/rxtelnet.in

@@ -6,8 +6,11 @@ if test $# -ne 1; then
 fi
 host=$1
 bindir=%bindir%
-set `$bindir/kx $host`
-pid=$1
-disp=:$2
-auth=$3
+set foo `$bindir/kx $host`
+if test $# -ne 4; then
+  exit 1
+fi
+pid=$2
+disp=:$3
+auth=$4
 (xterm -T $host -n $host -e env DISPLAY=$disp XAUTHORITY=$auth $bindir/telnet -D $host ; kill -USR2 $pid) &

appl/kx/rxterm.in

@@ -6,9 +6,12 @@ if test $# -ne 1; then
 fi
 host=$1
 bindir=%bindir%
-set `$bindir/kx $host`
-pid=$1
-disp=:$2
-auth=$3
+set foo `$bindir/kx $host`
+if test $# -ne 4; then
+  exit 1
+fi
+pid=$2
+disp=:$3
+auth=$4
 kill -USR1 $pid
 $bindir/rsh -n $host "env DISPLAY=$disp XAUTHORITY=$auth xterm -T $host -n $host &"