From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Fri, 14 Nov 2003 23:10:51 +0000 (+0000)
Subject: handle NULL pointers gracefully
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=55e9b0c9f6eaa8a35d7a2e0578cdebd6032fdd19;p=rrdtool.git

handle NULL pointers gracefully


git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@222 a5681a0c-68f1-0310-ab6d-d61299d08faa
---

diff --git a/src/rrd_cgi.c b/src/rrd_cgi.c
index 4543044..7f248ab 100644
--- a/src/rrd_cgi.c
+++ b/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);
 }