From: Adam Dickmeiss <adam@indexdata.dk>
Date: Thu, 20 Dec 2012 10:59:55 +0000 (+0100)
Subject: odr_prepend: zero length prefix ignored
X-Git-Tag: v4.2.48~10
X-Git-Url: http://sru.miketaylor.org.uk/?a=commitdiff_plain;h=82fade1c1b7531cda93c908e33d9af8b9fd91a6f;p=yaz-moved-to-github.git

odr_prepend: zero length prefix ignored
---

diff --git a/src/odr_util.c b/src/odr_util.c
index 17d1582..58b60cb 100644
--- a/src/odr_util.c
+++ b/src/odr_util.c
@@ -107,9 +107,9 @@ 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)
+    if (plen > 0)
         strcpy (res, prefix);
-    if (prefix != 0 && old != 0)
+    if (plen > 0 && old != 0)
         strcat (res, "/");
     if (old !=0)
         strcat (res, old);