Added more convient interface for ea_find.

What is special about int default;? Compiler chokes on that!

nest/route.h

@@ -324,6 +324,7 @@ typedef struct ea_list {
 #define EALF_CACHED 4			/* Attributes belonging to cached rta */
 
 eattr *ea_find(ea_list *, unsigned ea);
+int ea_get_int(ea_list *, unsigned ea, int def);
 void ea_dump(ea_list *);
 void ea_sort(ea_list *);		/* Sort entries in all sub-lists */
 unsigned ea_scan(ea_list *);		/* How many bytes do we need for merged ea_list */

nest/rt-attr.c

@@ -70,6 +70,15 @@ ea_find(ea_list *e, unsigned id)
   return a;
 }
 
+int
+ea_get_int(ea_list *e, unsigned id, int def)
+{
+  eattr *a = ea_find(e, id);
+  if (!a)
+    return def;
+  return a->u.data;
+}
+
 static inline void
 ea_do_sort(ea_list *e)
 {