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From: Xin LI <delphij@FreeBSD.org>
Date: Mon, 11 Aug 2014 06:54:07 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r269800 - stable/10/sbin/ping6
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Author: delphij
Date: Mon Aug 11 06:54:07 2014
New Revision: 269800
URL: http://svnweb.freebsd.org/changeset/base/269800

Log:
  MFC r269180:
  
  When interval is set to very small value with limited amount of packets,
  ping6(8) would quit before the remote side gets a chance to respond.
  
  Solve this by resetting the itimer when we have reached the maximum packet
  number have reached, but let the other handling to continue.
  
  PR:		bin/151023
  Submitted by:	tjmao at tjmao.net

Modified:
  stable/10/sbin/ping6/ping6.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sbin/ping6/ping6.c
==============================================================================
--- stable/10/sbin/ping6/ping6.c	Mon Aug 11 03:04:16 2014	(r269799)
+++ stable/10/sbin/ping6/ping6.c	Mon Aug 11 06:54:07 2014	(r269800)
@@ -1090,8 +1090,14 @@ main(int argc, char *argv[])
 		/* signal handling */
 		if (seenalrm) {
 			/* last packet sent, timeout reached? */
-			if (npackets && ntransmitted >= npackets)
-				break;
+			if (npackets && ntransmitted >= npackets) {
+				struct timeval zerotime = {0, 0};
+				itimer.it_value = zerotime;
+				itimer.it_interval = zerotime;
+				(void)setitimer(ITIMER_REAL, &itimer, NULL);
+				seenalrm = 0;   /* clear flag */
+				continue;
+			}
 			retransmit();
 			seenalrm = 0;
 			continue;