[LTP] [PATCH] daemonlib.sh: call tty before executing service

[Yang Xu <xuyang2018.jy@cn.fujitsu.com>]

On my machine, polkit-0.112-22.el7.x86_64 has contained the [1] patch.

This patch leads service acitons(such as restart) don't stop if it doesn't
find controlling terminal. Even the service has been executed successfully.
You can reproduce it with the following code:

test.sh
----------------------------------------------
echo "restart daemon"
systemctl restart rsyslog.service >/dev/null 2>&1
echo "restart success"
----------------------------------------------
./test.sh &  (it doesn't stop)
restart daemon

ps -auxf
--------------------------------------------------
.... pts/1    T      \_ /bin/bash ./test.sh
.... pts/1    T        \_ systemctl restart rsyslog.service
.... pts/1    Tl         \_ /usr/bin/pkttyagent --notify-fd 6
-------------------------------------------------

/var/log/secure
------------------------------------------------
polkitd[1310]: Registered Authentication Agent for unix-process:18472:252325 
(system bus name :1.105 [/usr/bin/pkttyagent --notify-fd 6 --fallback], object
path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
------------------------------------------------

This change leads to syslog[1-10] testcase hang. I fix it by adding tty beforce
service, so these cases don't hang.

(pkttyagent: PolkitAgentTextListener leaves echo tty disabled if SIGINT/SIGTERM)
[1]https://gitlab.freedesktop.org/polkit/polkit/commit/bfb722bbe5a503095cc7e860f282b142f5aa75f1

Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
---
 testcases/lib/daemonlib.sh | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/testcases/lib/daemonlib.sh b/testcases/lib/daemonlib.sh
index 0de3f86af..5807cbea0 100644
--- a/testcases/lib/daemonlib.sh
+++ b/testcases/lib/daemonlib.sh
@@ -47,43 +47,43 @@ fi
 start_daemon()
 {
 	if [ $HAVE_SYSTEMCTL -eq 1 ]; then
-		systemctl start $1.service > /dev/null 2>&1
+		tty | systemctl start $1.service > /dev/null 2>&1
 	elif command -v service >/dev/null 2>&1; then
-		service $1 start > /dev/null 2>&1
+		tty | service $1 start > /dev/null 2>&1
 	else
-		/etc/init.d/$1 start > /dev/null 2>&1
+		tty |/etc/init.d/$1 start > /dev/null 2>&1
 	fi
 }
 
 stop_daemon()
 {
 	if [ $HAVE_SYSTEMCTL -eq 1 ]; then
-		systemctl stop $1.service > /dev/null 2>&1
+		tty | systemctl stop $1.service > /dev/null 2>&1
 	elif command -v service >/dev/null 2>&1; then
-		service $1 stop > /dev/null 2>&1
+		tty | service $1 stop > /dev/null 2>&1
 	else
-		/etc/init.d/$1 stop > /dev/null 2>&1
+		tty | /etc/init.d/$1 stop > /dev/null 2>&1
 	fi
 }
 
 status_daemon()
 {
 	if [ $HAVE_SYSTEMCTL -eq 1 ]; then
-		systemctl is-active $1.service > /dev/null 2>&1
+		tty | systemctl is-active $1.service > /dev/null 2>&1
 	elif command -v service >/dev/null 2>&1; then
-		service $1 status > /dev/null 2>&1
+		tty | service $1 status > /dev/null 2>&1
 	else
-		/etc/init.d/$1 status > /dev/null 2>&1
+		tty | /etc/init.d/$1 status > /dev/null 2>&1
 	fi
 }
 
 restart_daemon()
 {
 	if [ $HAVE_SYSTEMCTL -eq 1 ]; then
-		systemctl restart $1.service > /dev/null 2>&1
+		tty | systemctl restart $1.service > /dev/null 2>&1
 	elif command -v service >/dev/null 2>&1; then
-		service $1 restart > /dev/null 2>&1
+		tty | service $1 restart > /dev/null 2>&1
 	else
-		/etc/init.d/$1 restart > /dev/null 2>&1
+		tty | /etc/init.d/$1 restart > /dev/null 2>&1
 	fi
 }
-- 
2.18.1