diff --git a/misc.h b/misc.h
index a307df3..b30fe48 100644
--- a/misc.h
+++ b/misc.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: misc.h,v 1.5 2001/05/03 23:09:52 mouring Exp $	*/
+/*	$OpenBSD: misc.h,v 1.6 2001/05/08 19:45:24 mouring Exp $	*/
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -28,11 +28,21 @@
  * Return 0 if invalid.
  */
 int a2port(const char *s);
- 
+
 /* code from scp.c/rcp.c */
 char *cleanhostname(char *host);
 char *colon(char *cp);
 
+/* function to assist building execv() arguments */
+typedef struct arglist arglist;
+struct arglist {
+        char    **list;
+        int     num;
+        int     nalloc;
+};
+
+void addargs(arglist *args, char *fmt, ...) __attribute__((format(printf, 2, 3)));
+
 /* wrapper for signal interface */
 typedef void (*mysig_t)(int);
 mysig_t mysignal(int sig, mysig_t act);