tests: use openconnect -b in full-test

tests/full-test

@@ -71,13 +71,22 @@ fi
 echo ""
 echo "Connecting with correct username"
 $ECHO_E "test" >pass-full$TMP
-$OPENCONNECT $IP:$PORT_OCSERV -u test --passwd-on-stdin -v --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 < pass-full$TMP &
-PID=$!
-
+$OPENCONNECT $IP:$PORT_OCSERV -b --pid-file ${srcdir}/pid1.$$ -u test --passwd-on-stdin -v --servercert=d66b507ae074d03b02eafca40d35f87dd81049d3 < pass-full$TMP
+if test $? != 0;then
+	echo "Cannot connect to server"
+	stop
+fi
 
 #wait for openconnect
 sleep 5
+
 rm -f pass-full$TMP
+if [ ! -f ${srcdir}/pid1.$$ ];then
+	echo "It was not possible to establish session!"
+	stop
+fi
+
+PID=`cat ${srcdir}/pid1.$$`
 
 # The client IP depends on the username so it shouldn't change.
 ping -w 5 192.168.1.1