diff --git a/lib/libc/gen/signal.c b/lib/libc/gen/signal.c
index cc3cce2c5a48..67109af088cb 100644
--- a/lib/libc/gen/signal.c
+++ b/lib/libc/gen/signal.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: signal.c,v 1.13 2012/06/25 22:32:44 abs Exp $	*/
+/*	$NetBSD: signal.c,v 1.14 2016/06/03 23:57:37 christos Exp $	*/
 
 /*
  * Copyright (c) 1985, 1989, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)signal.c	8.1 (Berkeley) 6/4/93";
 #else
-__RCSID("$NetBSD: signal.c,v 1.13 2012/06/25 22:32:44 abs Exp $");
+__RCSID("$NetBSD: signal.c,v 1.14 2016/06/03 23:57:37 christos Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -64,3 +64,19 @@ signal(int s, sig_t a)
 		return (SIG_ERR);
 	return (osa.sa_handler);
 }
+
+void 
+(*bsd_signal(int sig, void (*func)(int)))(int) 
+{
+	struct sigaction act, oact;
+
+	act.sa_handler = func;
+	act.sa_flags = SA_RESTART;
+
+	sigemptyset(&act.sa_mask);
+	sigaddset(&act.sa_mask, sig);
+	if (sigaction(sig, &act, &oact) < 0)
+		return (SIG_ERR);
+
+	return (oact.sa_handler);
+}
diff --git a/sys/sys/signal.h b/sys/sys/signal.h
index bec4aa150f67..3ca3577bdac8 100644
--- a/sys/sys/signal.h
+++ b/sys/sys/signal.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: signal.h,v 1.67 2011/01/10 13:56:44 christos Exp $	*/
+/*	$NetBSD: signal.h,v 1.68 2016/06/03 23:57:37 christos Exp $	*/
 
 /*
  * Copyright (c) 1982, 1986, 1989, 1991, 1993
@@ -235,6 +235,7 @@ struct	sigevent {
  */
 __BEGIN_DECLS
 void	(*signal(int, void (*)(int)))(int);
+void	(*bsd_signal(int, void (*)(int)))(int);
 #if (_POSIX_C_SOURCE - 0) >= 200112L || defined(_NETBSD_SOURCE)
 int	sigqueue(pid_t, int, const union sigval);
 #endif