From: Sven Eckelmann <sven@narfation.org>
Date: Fri, 22 Apr 2022 11:14:08 +0200
Subject: batctl: ping: Skip sleep after last packet

The -i option for ping is documented as interval between ping requests. But
the sleep was also applied after all the requested pings already sent out.
As result, the user had to wait additional time until the statistics for
the (limited) ping test was printed.

Just skip the last sleep in case there will be no next ping packet to avoid
this problem.

Reported-by: Roman Le bg <roman@romanlebg.fr>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Origin: upstream, https://git.open-mesh.org/batctl.git/commit/47d063213d5843d1ca33c557bd4a874db3e90e9e)

--- a/ping.c
+++ b/ping.c
@@ -282,6 +282,10 @@ read_packet:
 		}
 
 sleep:
+		/* skip last sleep in case no more packets will be sent out */
+		if (loop_count == 0)
+			continue;
+
 		if (loop_interval > 0)
 			sleep(loop_interval);
 		else if ((tv.tv_sec != 0) || (tv.tv_usec != 0))