X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/3824a6c0417a551961d1a1bf4f94f10eff736afc..1afd3f308e25f7bf070f3932a28ed6b2be8173f6:/print-mobile.c

diff --git a/print-mobile.c b/print-mobile.c
index 31a98cdb..de4eab1d 100644
--- a/print-mobile.c
+++ b/print-mobile.c
@@ -40,6 +40,10 @@
 #include "config.h"
 #endif
 
+#ifndef lint
+static const char rcsid[] _U_ =
+     "@(#) $Header: /tcpdump/master/tcpdump/print-mobile.c,v 1.15 2004-03-24 01:58:14 guy Exp $";
+#endif
 
 #include <tcpdump-stdinc.h>
 
@@ -49,10 +53,6 @@
 #include "addrtoname.h"
 #include "extract.h"		/* must come after interface.h */
 
-#ifndef lint
-static const char rcsid[] _U_ =
-     "@(#) $Header: /tcpdump/master/tcpdump/print-mobile.c,v 1.13 2003-11-15 00:39:31 guy Exp $";
-#endif
 #define MOBILE_SIZE (8)
 
 struct mobile_ip {
@@ -72,12 +72,13 @@ mobile_print(const u_char *bp, u_int length)
 {
 	const u_char *cp = bp +8 ;
 	const struct mobile_ip *mob;
+	struct cksum_vec vec[1];
 	u_short proto,crc;
 	u_char osp =0;			/* old source address present */
 
 	mob = (const struct mobile_ip *)bp;
 
-	if (length < MOBILE_SIZE) {
+	if (length < MOBILE_SIZE || !TTEST(*mob)) {
 		fputs("[|mobile]", stdout);
 		return;
 	}
@@ -101,7 +102,9 @@ mobile_print(const u_char *bp, u_int length)
 		(void)printf("> %s ",ipaddr_string(&mob->odst));
 		(void)printf("(oproto=%d)",proto>>8);
 	}
-	if (in_cksum((u_short *)mob, osp ? 12 : 8, 0)!=0) {
+	vec[0].ptr = (const u_int8_t *)(void *)mob;
+	vec[0].len = osp ? 12 : 8;
+	if (in_cksum(vec, 1)!=0) {
 		(void)printf(" (bad checksum %d)",crc);
 	}