From f6b2091eca674262d5018110b96aac63d2fc253f Mon Sep 17 00:00:00 2001
From: Jan-Piet Mens <jpmens@gmail.com>
Date: Wed, 20 Jul 2016 10:50:43 +0200
Subject: [PATCH] catch null payload

---
 util.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/util.c b/util.c
index c5eae75..a0392ce 100644
--- a/util.c
+++ b/util.c
@@ -608,7 +608,12 @@ double haversine_dist(double th1, double ph1, double th2, double ph2)
 
 void chomp(char *s)
 {
-	char *p = s + strlen(s) - 1;
+	char *p;
+	
+	if (!s || *s == 0)
+		return;
+
+	p = s + strlen(s) - 1;
 
 	while (isspace(*p)) {
 		*p-- = 0;