X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/c9d84d15c5c4dc8eca7594101fe5026080ed641e..ad6df73f5a6c46a409c7629f5588b1b81dff6357:/print-mobile.c

diff --git a/print-mobile.c b/print-mobile.c
index 4cbbc918..e767beb3 100644
--- a/print-mobile.c
+++ b/print-mobile.c
@@ -36,21 +36,20 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#if 0
-#include <sys/cdefs.h>
-#ifndef lint
-__RCSID("$NetBSD: print-mobile.c,v 1.2 1998/09/30 08:57:01 hwr Exp $");
+#ifdef HAVE_CONFIG_H
+#include "config.h"
 #endif
+
+#ifndef lint
+static const char rcsid[] =
+     "@(#) $Header: /tcpdump/master/tcpdump/print-mobile.c,v 1.8 2002-06-01 23:50:32 guy Exp $";
 #endif
 
 #include <sys/param.h>
 #include <sys/time.h>
-#include <sys/uio.h>
 #include <sys/socket.h>
 
 #include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
 
 #include <netdb.h>
 #include <stdio.h>
@@ -70,8 +69,6 @@ struct mobile_ip {
 
 #define OSRC_PRES	0x0080	/* old source is present */
 
-static u_int16_t mob_in_cksum(u_short *p, int len);
-
 /*
  * Deencapsulate and print a mobile-tunneled IP datagram
  */
@@ -89,6 +86,7 @@ mobile_print(const u_char *bp, u_int length)
 		fputs("[|mobile]", stdout);
 		return;
 	}
+	fputs("mobile: ", stdout);
 
 	proto = EXTRACT_16BITS(&mob->proto);
 	crc =  EXTRACT_16BITS(&mob->hcheck);
@@ -108,34 +106,9 @@ mobile_print(const u_char *bp, u_int length)
 		(void)printf("> %s ",ipaddr_string(&mob->odst));
 		(void)printf("(oproto=%d)",proto>>8);
 	}
-	if (mob_in_cksum((u_short *)mob, osp ? 12 : 8)!=0) {
+	if (in_cksum((u_short *)mob, osp ? 12 : 8, 0)!=0) {
 		(void)printf(" (bad checksum %d)",crc);
 	}
 
 	return;
 }
-
-static u_int16_t mob_in_cksum(u_short *p, int len)
-{
-	u_int32_t sum = 0; 
-	int nwords = len >> 1;
-  
-	while (nwords-- != 0)
-		sum += *p++;
-  
-	if (len & 1) {
-		union {
-			u_int16_t w;
-			u_int8_t c[2]; 
-		} u;
-		u.c[0] = *(u_char *)p;
-		u.c[1] = 0;
-		sum += u.w;
-	} 
-
-	/* end-around-carry */
-	sum = (sum >> 16) + (sum & 0xffff);
-	sum += (sum >> 16);
-	return (~sum);
-}
-