X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Fodr_util.c;h=6efa6c03fcdbd4ffdee376bca3c15daaa994c2b7;hb=5ae2f74ba9b27bb7e926d5908471ac79371f7823;hp=17d1582bc7676e59e5b1bc7a2c548a747bbfc42f;hpb=5242cb5a8634bfa38b9333ff7f903e718ac6e292;p=yaz-moved-to-github.git

diff --git a/src/odr_util.c b/src/odr_util.c
index 17d1582..6efa6c0 100644
--- a/src/odr_util.c
+++ b/src/odr_util.c
@@ -1,5 +1,5 @@
 /* This file is part of the YAZ toolkit.
- * Copyright (C) 1995-2012 Index Data
+ * Copyright (C) 1995-2013 Index Data
  * See the file LICENSE for details.
  */
 /**
@@ -107,13 +107,12 @@ char *odr_prepend(ODR o, const char *prefix, const char *old)
     char *res = (char*) odr_malloc (o, olen + plen + 2);
 
     *res = '\0';
-    if (prefix != 0)
-        strcpy (res, prefix);
-    if (prefix != 0 && old != 0)
-        strcat (res, "/");
-    if (old !=0)
-        strcat (res, old);
-
+    if (plen > 0)
+        strcpy(res, prefix);
+    if (plen > 0 && old != 0)
+        strcat(res, "/");
+    if (old != 0)
+        strcat(res, old);
     return res;
 }
 /*