cron02: Use lib to restart crond service

Use restart_daemon() to restart crond service.

Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
diff --git a/testcases/commands/cron/cron02 b/testcases/commands/cron/cron02
index f8615dc..16b425d 100755
--- a/testcases/commands/cron/cron02
+++ b/testcases/commands/cron/cron02
@@ -52,29 +52,10 @@
         }
         fi
 
-	# running under systemd?
-	if command -v systemctl >/dev/null 2>&1; then
-		HAVE_SYSTEMCTL=true
+	if [ -n "$CROND_DAEMON" ]; then
+		restart_daemon $CROND_DAEMON
 	else
-		HAVE_SYSTEMCTL=false
-	fi
-
-	# restart cron daemon
-	# Red Hat uses crond, SuSE/Other uses cron.
-	if [ -x /etc/init.d/crond ]; then
-		/etc/init.d/crond restart
-	elif [ -x /etc/init.d/cron ]; then
-		/etc/init.d/cron restart
-	elif $HAVE_SYSTEMCTL; then
-		for crond in "crond" "cron"; do
-			if systemctl is-enabled $crond.service >/dev/null 2>&1; then
-				systemctl restart $crond.service
-				break
-			fi
-		done
-	else
-		echo "Could not determine cron init.d script."
-		exit 1
+		tst_brkm TBROK "Couldn't find crond or cron"
 	fi
 }
 
@@ -90,6 +71,8 @@
 #-----------------------------------------------------------------------
 # FUNCTION:  MAIN
 #-----------------------------------------------------------------------
+. cmdlib.sh
+
 do_setup
 cron_pos_tests.sh $TEST_USER
 EXIT_CODE=$?
diff --git a/testcases/lib/cmdlib.sh b/testcases/lib/cmdlib.sh
index b1ea15e..d6f43d2 100644
--- a/testcases/lib/cmdlib.sh
+++ b/testcases/lib/cmdlib.sh
@@ -168,6 +168,14 @@
 	SYSLOG_DAEMON="rsyslog"
 fi
 
+# Check to see if cron or crond exists
+CROND_DAEMON=""
+if command -v crond >/dev/null 2>&1; then
+	CROND_DAEMON="crond"
+elif command -v cron >/dev/null 2>&1; then
+	CROND_DAEMON="cron"
+fi
+
 start_daemon()
 {
 	if [ $HAVE_SYSTEMCTL -eq 1 ]; then