[lang] Fix serializing LangSet from older versions

diff --git a/src/fclang.c b/src/fclang.c
index 61c4da6615eff6a58a173ac1493323355298c2bf..1d62c4e3f52960852614ce8ff4c9e8d4ca8305f1 100644 (file)
--- a/src/fclang.c
+++ b/src/fclang.c
@@ -537,9 +537,10 @@ FcChar32
 FcLangSetHash (const FcLangSet *ls)
 {
     FcChar32   h = 0;
-    int                i;
+    int                i, count;
 
-    for (i = 0; i < ls->map_size; i++)
+    count = FC_MIN (ls->map_size, NUM_LANG_SET_MAP);
+    for (i = 0; i < count; i++)
        h ^= ls->map[i];
     if (ls->extra)
        h ^= ls->extra->num;
@@ -777,7 +778,9 @@ FcLangSetSerialize(FcSerialize *serialize, const FcLangSet *l)
 
     if (!l_serialize)
        return NULL;
-    *l_serialize = *l;
+    memset (l_serialize->map, '\0', sizeof (l_serialize->map));
+    memcpy (l_serialize->map, l->map, FC_MIN (sizeof (l_serialize->map), l->map_size * sizeof (l->map[0])));
+    l_serialize->map_size = NUM_LANG_SET_MAP;
     l_serialize->extra = NULL; /* We don't serialize ls->extra */
     return l_serialize;
 }