#
# Use long double instead of double so it won't overflow if ping is run for
# a couple of days.
#
# Reported by:	@tifan via twitter
#
Index: ping.c
===================================================================
--- ping.c	(revision 229852)
+++ ping.c	(working copy)
@@ -189,10 +189,10 @@
 
 /* timing */
 int timing;			/* flag to do timing */
-double tmin = 999999999.0;	/* minimum round trip time */
-double tmax = 0.0;		/* maximum round trip time */
-double tsum = 0.0;		/* sum of all times, for doing average */
-double tsumsq = 0.0;		/* sum of all times squared, for std. dev. */
+long double tmin = 999999999.0;	/* minimum round trip time */
+long double tmax = 0.0;		/* maximum round trip time */
+long double tsum = 0.0;		/* sum of all times, for doing average */
+long double tsumsq = 0.0;		/* sum of all times squared, for std. dev. */
 
 volatile sig_atomic_t finish_up;  /* nonzero if we've been told to finish up */
 volatile sig_atomic_t siginfo_p;
@@ -231,7 +231,7 @@
 	char *policy_in, *policy_out;
 #endif
 	struct sockaddr_in *to;
-	double t;
+	long double t;
 	u_long alarmtimeout, ultmp;
 	int almost_done, ch, df, hold, i, icmp_len, mib[4], preload, sockerrno,
 	    tos, ttl;
@@ -350,8 +350,8 @@
 			options |= F_MIF;
 			break;
 		case 'i':		/* wait between sending packets */
-			t = strtod(optarg, &ep) * 1000.0;
-			if (*ep || ep == optarg || t > (double)INT_MAX)
+			t = strtold(optarg, &ep) * 1000.0;
+			if (*ep || ep == optarg || t > (long double)INT_MAX)
 				errx(EX_USAGE, "invalid timing interval: `%s'",
 				    optarg);
 			options |= F_INTERVAL;
@@ -471,8 +471,8 @@
 			options |= F_VERBOSE;
 			break;
 		case 'W':		/* wait ms for answer */
-			t = strtod(optarg, &ep);
-			if (*ep || ep == optarg || t > (double)INT_MAX)
+			t = strtold(optarg, &ep);
+			if (*ep || ep == optarg || t > (long double)INT_MAX)
 				errx(EX_USAGE, "invalid timing interval: `%s'",
 				    optarg);
 			options |= F_WAITTIME;
@@ -1016,7 +1016,7 @@
 	struct icmp *icp;
 	struct ip *ip;
 	const void *tp;
-	double triptime;
+	long double triptime;
 	int dupflag, hlen, i, j, recv_len, seq;
 	static int old_rrlen;
 	static char old_rr[MAX_IPOPTLEN];
@@ -1056,8 +1056,8 @@
 				tv1.tv_sec = ntohl(tv32.tv32_sec);
 				tv1.tv_usec = ntohl(tv32.tv32_usec);
 				tvsub(tv, &tv1);
- 				triptime = ((double)tv->tv_sec) * 1000.0 +
- 				    ((double)tv->tv_usec) / 1000.0;
+ 				triptime = ((long double)tv->tv_sec) * 1000.0 +
+ 				    ((long double)tv->tv_usec) / 1000.0;
 				tsum += triptime;
 				tsumsq += triptime * triptime;
 				if (triptime < tmin)
@@ -1095,7 +1095,7 @@
 			   seq);
 			(void)printf(" ttl=%d", ip->ip_ttl);
 			if (timing)
-				(void)printf(" time=%.3f ms", triptime);
+				(void)printf(" time=%.3Lf ms", triptime);
 			if (dupflag)
 				(void)printf(" (DUP!)");
 			if (options & F_AUDIBLE)
@@ -1349,7 +1349,7 @@
 		    nreceived, ntransmitted,
 		    ntransmitted ? nreceived * 100.0 / ntransmitted : 0.0);
 		if (nreceived && timing)
-			(void)fprintf(stderr, " %.3f min / %.3f avg / %.3f max",
+			(void)fprintf(stderr, " %.3Lf min / %.3Lf avg / %.3Lf max",
 			    tmin, tsum / (nreceived + nrepeats), tmax);
 		(void)fprintf(stderr, "\n");
 	}
@@ -1384,12 +1384,12 @@
 		(void)printf(", %ld packets out of wait time", nrcvtimeout);
 	(void)putchar('\n');
 	if (nreceived && timing) {
-		double n = nreceived + nrepeats;
-		double avg = tsum / n;
-		double vari = tsumsq / n - avg * avg;
+		long double n = nreceived + nrepeats;
+		long double avg = tsum / n;
+		long double vari = tsumsq / n - avg * avg;
 		(void)printf(
-		    "round-trip min/avg/max/stddev = %.3f/%.3f/%.3f/%.3f ms\n",
-		    tmin, avg, tmax, sqrt(vari));
+		    "round-trip min/avg/max/stddev = %.3Lf/%.3Lf/%.3Lf/%.3Lf ms\n",
+		    tmin, avg, tmax, sqrtl(vari));
 	}
 
 	if (nreceived)