X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/7b2c5a11a7bc236d72b440c4db5263edb23b4880..e01c9bf76740802025c9328901b55ee4a0c49ed6:/print-vrrp.c

diff --git a/print-vrrp.c b/print-vrrp.c
index 30f89d34..a3976676 100644
--- a/print-vrrp.c
+++ b/print-vrrp.c
@@ -23,13 +23,15 @@
  * FOR A PARTICULAR PURPOSE.
  */
 
+/* \summary: Virtual Router Redundancy Protocol (VRRP) printer */
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
 
-#include "interface.h"
+#include "netdissect.h"
 #include "extract.h"
 #include "addrtoname.h"
 
@@ -140,17 +142,21 @@ vrrp_print(netdissect_options *ndo,
 
 			vec[0].ptr = bp;
 			vec[0].len = len;
-			if (in_cksum(vec, 1))
+			if (in_cksum(vec, 1)) {
+				ND_TCHECK_16BITS(&bp[6]);
 				ND_PRINT((ndo, ", (bad vrrp cksum %x)",
 					EXTRACT_16BITS(&bp[6])));
+			}
 		}
 
 		if (version == 3 && ND_TTEST2(bp[0], len)) {
-			uint16_t cksum = nextproto4_cksum(ndo, (struct ip *)bp2, bp,
+			uint16_t cksum = nextproto4_cksum(ndo, (const struct ip *)bp2, bp,
 				len, len, IPPROTO_VRRP);
-			if (cksum)
+			if (cksum) {
+				ND_TCHECK_16BITS(&bp[6]);
 				ND_PRINT((ndo, ", (bad vrrp cksum %x)",
 					EXTRACT_16BITS(&bp[6])));
+			}
 		}
 
 		ND_PRINT((ndo, ", addrs"));