$OpenBSD: patch-zmdm_h,v 1.1 2017/04/24 10:14:05 sthen Exp $
--- zmdm.h.orig	Thu Dec 12 07:24:08 1996
+++ zmdm.h	Mon Apr 24 11:08:27 2017
@@ -71,6 +71,15 @@ tx_bheader(unsigned char * buf,int n);
 int
 rx_header(int to);												/* receive any header with timeout in milliseconds */
 
+int rx_poll(void);
+void rx_purge(void);
+inline int rx_raw(int);
+
+void tx_data(int, unsigned char *, int);
+void tx_header(unsigned char *);
+void tx_hex_header(unsigned char *);
+void tx_raw(int);
+
 #endif
 
 
