[src/trunk]: src/sys/netinet Fix build without INET6

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/37da572e3598
branches:  trunk
changeset: 823314:37da572e3598
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Wed Apr 19 03:23:06 2017 +0000

description:
Fix build without INET6

diffstat:

 sys/netinet/ip_carp.c |  10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diffs (45 lines):

diff -r e553f80330e3 -r 37da572e3598 sys/netinet/ip_carp.c
--- a/sys/netinet/ip_carp.c     Wed Apr 19 02:21:53 2017 +0000
+++ b/sys/netinet/ip_carp.c     Wed Apr 19 03:23:06 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ip_carp.c,v 1.86 2017/03/14 09:03:08 ozaki-r Exp $     */
+/*     $NetBSD: ip_carp.c,v 1.87 2017/04/19 03:23:06 ozaki-r Exp $     */
 /*     $OpenBSD: ip_carp.c,v 1.113 2005/11/04 08:11:54 mcbride Exp $   */
 
 /*
@@ -33,7 +33,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip_carp.c,v 1.86 2017/03/14 09:03:08 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip_carp.c,v 1.87 2017/04/19 03:23:06 ozaki-r Exp $");
 
 /*
  * TODO:
@@ -712,9 +712,11 @@
        /* verify the hash */
        if (carp_hmac_verify(sc, ch->carp_counter, ch->carp_md)) {
                struct ip *ip;
+               char ipbuf[INET_ADDRSTRLEN];
+#ifdef INET6
                struct ip6_hdr *ip6;
                char ip6buf[INET6_ADDRSTRLEN];
-               char ipbuf[INET_ADDRSTRLEN];
+#endif
 
                CARP_STATINC(CARP_STAT_BADAUTH);
                sc->sc_if.if_ierrors++;
@@ -726,11 +728,13 @@
                            in_fmtaddr(ipbuf, ip->ip_src)));
                        break;
 
+#ifdef INET6
                case AF_INET6:
                        ip6 = mtod(m, struct ip6_hdr *);
                        CARP_LOG(sc, ("incorrect hash from %s",
                            IN6_PRINT(ip6buf, &ip6->ip6_src)));
                        break;
+#endif
 
                default: CARP_LOG(sc, ("incorrect hash"));
                        break;