hostip.c: fix potential write past the end of string buffer

curl · Jan 2, 2012 · cc69e56 · cc69e56
1 parent 8e25d1b
commit cc69e56
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/hostip.c b/lib/hostip.c
@@ -212,7 +212,7 @@ create_hostcache_id(const char *name, int port)
   char *ptr = id;
   if(ptr) {
     /* lower case the name part */
-    while(*ptr != ':') {
+    while(*ptr && (*ptr != ':')) {
       *ptr = (char)TOLOWER(*ptr);
       ptr++;
     }