-typedef int each_reflog_ent_fn(unsigned char *osha1, unsigned char *nsha1, char *, void *);
-void for_each_reflog_ent(const char *ref, each_reflog_ent_fn fn, void *cb_data);
+typedef int each_reflog_ent_fn(unsigned char *osha1, unsigned char *nsha1, const char *, unsigned long, int, const char *, void *);
+int for_each_reflog_ent(const char *ref, each_reflog_ent_fn fn, void *cb_data);
+
+/*
+ * Calls the specified function for each reflog file until it returns nonzero,
+ * and returns the value
+ */
+extern int for_each_reflog(each_ref_fn, void *);