From aa038fa98c431741be519f95c9434817ab9c0f97 Mon Sep 17 00:00:00 2001
From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Fri, 14 Nov 2003 23:10:51 +0000
Subject: [PATCH] handle NULL pointers gracefully

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@222 a5681a0c-68f1-0310-ab6d-d61299d08faa
---
 program/src/rrd_cgi.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/program/src/rrd_cgi.c b/program/src/rrd_cgi.c
index 4543044c..7f248ab0 100644
--- a/program/src/rrd_cgi.c
+++ b/program/src/rrd_cgi.c
@@ -83,7 +83,11 @@ static void calfree (void){
 
 /* create freeable version of the string */
 char * stralloc(char *str){
-  char *nstr = malloc((strlen(str)+1)*sizeof(char));
+  char *nstr;
+  if (str == NULL) {  
+        return NULL;
+  }
+  nstr = malloc((strlen(str)+1)*sizeof(char));
   strcpy(nstr,str);
   return(nstr);
 }
-- 
2.30.2