Test for NULL before calling strdup

diff --git a/src/data/dictionary.c b/src/data/dictionary.c
index 1c50ac7feb26976ea1e9b63d835961a5ae3db243..6e377f803212a6fbdce251ce17b36f3121e28177 100644 (file)
--- a/src/data/dictionary.c
+++ b/src/data/dictionary.c
@@ -211,7 +211,8 @@ dict_clone (const struct dictionary *s)
   for (i = 0; i < s->vector_cnt; i++)
     d->vector[i] = vector_clone (s->vector[i], s, d);
 
-  d->encoding = strdup (s->encoding);
+  if ( s->encoding)
+    d->encoding = strdup (s->encoding);
 
   dict_set_attributes (d, dict_get_attributes (s));