From c7c27ba763c613f83c1561e56448b49315c271c5 Mon Sep 17 00:00:00 2001
From: Jackie Huang <jackie.huang@windriver.com>
Date: Wed, 6 Mar 2019 09:36:11 -0500
Subject: [PATCH] Upstream:
 http://www.mail-archive.com/bug-inetutils@gnu.org/msg02103.html

Upstream-Status: Pending

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>

---
 ping/ping_common.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/ping/ping_common.h b/ping/ping_common.h
index 65e3e60..3e84db0 100644
--- a/ping/ping_common.h
+++ b/ping/ping_common.h
@@ -18,10 +18,14 @@
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see `http://www.gnu.org/licenses/'. */
 
+#include <config.h>
+
 #include <netinet/in_systm.h>
 #include <netinet/in.h>
 #include <netinet/ip.h>
+#ifdef HAVE_IPV6
 #include <netinet/icmp6.h>
+#endif
 #include <icmp.h>
 #include <error.h>
 #include <progname.h>
@@ -63,7 +67,12 @@ struct ping_stat
    want to follow the traditional behaviour of ping.  */
 #define DEFAULT_PING_COUNT 0
 
+#ifdef HAVE_IPV6
 #define PING_HEADER_LEN (USE_IPV6 ? sizeof (struct icmp6_hdr) : ICMP_MINLEN)
+#else
+#define PING_HEADER_LEN (ICMP_MINLEN)
+#endif
+
 #define PING_TIMING(s)  ((s) >= sizeof (struct timeval))
 #define PING_DATALEN    (64 - PING_HEADER_LEN)  /* default data length */
 
@@ -78,13 +87,20 @@ struct ping_stat
 
 #define PING_MIN_USER_INTERVAL (200000/PING_PRECISION)
 
+#ifdef HAVE_IPV6
 /* FIXME: Adjust IPv6 case for options and their consumption.  */
 #define _PING_BUFLEN(p, u) ((u)? ((p)->ping_datalen + sizeof (struct icmp6_hdr)) : \
 				   (MAXIPLEN + (p)->ping_datalen + ICMP_TSLEN))
 
+#else
+#define _PING_BUFLEN(p, u) (MAXIPLEN + (p)->ping_datalen + ICMP_TSLEN)
+#endif
+
+#ifdef HAVE_IPV6
 typedef int (*ping_efp6) (int code, void *closure, struct sockaddr_in6 * dest,
 			  struct sockaddr_in6 * from, struct icmp6_hdr * icmp,
 			  int datalen);
+#endif
 
 typedef int (*ping_efp) (int code,
 			 void *closure,
@@ -93,13 +109,17 @@ typedef int (*ping_efp) (int code,
 			 struct ip * ip, icmphdr_t * icmp, int datalen);
 
 union event {
+#ifdef HAVE_IPV6
   ping_efp6 handler6;
+#endif
   ping_efp handler;
 };
 
 union ping_address {
   struct sockaddr_in ping_sockaddr;
+#ifdef HAVE_IPV6
   struct sockaddr_in6 ping_sockaddr6;
+#endif
 };
 
 typedef struct ping_data PING;