From 94b6a6944045c0f5a026e674d62c652b2b8af7ed Mon Sep 17 00:00:00 2001
From: Frederic Marchal <fmarchal@users.sourceforge.net>
Date: Mon, 3 Jun 2013 12:35:45 +0200
Subject: [PATCH] Don't segfault if date_time_by is empty

Thanks to nuphero for reporting this bug and helping in tracking it down.
---
 totday.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/totday.c b/totday.c
index 2d01186..e2cee78 100644
--- a/totday.c
+++ b/totday.c
@@ -100,6 +100,7 @@ void day_addpoint(DayObject ddata,const char *date, const char *time, long long
 	int dayidx;
 	int i;
 
+	if (!ddata) return;
 	if (sscanf(date,"%d/%d/%d",&day,&month,&year)!=3) {
 		debuga(_("Invalid date \"%s\" for the hourly statistics\n"),date);
 		exit(EXIT_FAILURE);
-- 
2.47.2