diff --git a/lib/zclient.h b/lib/zclient.h
index 19b4f0e..3490b32 100644
--- a/lib/zclient.h
+++ b/lib/zclient.h
@@ -163,6 +163,9 @@
 
 /* create header for command, length to be filled in by user later */
 extern void zclient_create_header (struct stream *, uint16_t, vrf_id_t);
+extern int zclient_read_header (struct stream *s, int sock, u_int16_t *size,
+				u_char *marker, u_char *version,
+				u_int16_t *vrf_id, u_int16_t *cmd);
 
 extern struct interface *zebra_interface_add_read (struct stream *,
     vrf_id_t);