$OpenBSD: patch-util_sockio_c,v 1.1 2018/04/13 15:19:29 jasper Exp $

Index: util/sockio.c
--- util/sockio.c.orig
+++ util/sockio.c
@@ -8,6 +8,7 @@
 /* on Solaris you might need to add -lsocket                  */
 
 #include <stdio.h>
+#include <string.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/un.h>
