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--- iputils-s20070202/ping_common.c	2007-02-02 07:55:46.000000000 -0500
+++ iputils/ping_common.c	2007-10-28 12:19:17.000000000 -0400
@@ -818,7 +820,8 @@
 	}
 	if (pipesize > 1)
 		printf(", pipe %d", pipesize);
-	if (ntransmitted > 1 && (!interval || (options&(F_FLOOD|F_ADAPTIVE)))) {
+	if (ntransmitted > 1 && nreceived && 
+			(!interval || (options&(F_FLOOD|F_ADAPTIVE)))) {
 		int ipg = (1000000*(long long)tv.tv_sec+tv.tv_usec)/(ntransmitted-1);
 		printf(", ipg/ewma %d.%03d/%d.%03d ms",
 		       ipg/1000, ipg%1000, rtt/8000, (rtt/8)%1000);
@@ -852,4 +855,3 @@
 	}
 	fprintf(stderr, "\n");
 }
-