Print_host is used mainly in printf style functions. So do not return NULL

instead return "unknown".
OK beck@

diff --git a/sbin/iked/util.c b/sbin/iked/util.c
index 5f232a3..1d4cee2 100644 (file)
--- a/sbin/iked/util.c
+++ b/sbin/iked/util.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: util.c,v 1.33 2017/01/09 14:49:21 reyk Exp $  */
+/*     $OpenBSD: util.c,v 1.34 2017/11/29 01:25:11 claudio Exp $       */
 
 /*
  * Copyright (c) 2010-2013 Reyk Floeter <reyk@openbsd.org>
@@ -654,8 +654,8 @@ print_host(struct sockaddr *sa, char *buf, size_t len)
 
        if (getnameinfo(sa, sa->sa_len,
            buf, len, NULL, 0, NI_NUMERICHOST) != 0) {
-               buf[0] = '\0';
-               return (NULL);
+               strlcpy(buf, "unknown", len);
+               return (buf);
        }
 
        if ((port = socket_getport(sa)) != 0) {