Eliminate some unused parameters.

[tcpdump] / print-ip6.c

diff --git a/print-ip6.c b/print-ip6.c
index 1965c3fd295a9eea36a1229544ce5a0f742062e6..68d7d6e21c991328273900cc020771dfc85f50cd 100644 (file)
--- a/print-ip6.c
+++ b/print-ip6.c
@@ -21,7 +21,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-ip6.c,v 1.17 2001-08-20 17:52:40 fenner Exp $";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-ip6.c,v 1.18 2001-09-17 21:58:03 fenner Exp $";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -51,11 +51,11 @@ static const char rcsid[] =
  * print an IP6 datagram.
  */
 void
-ip6_print(register const u_char *bp, register int length)
+ip6_print(register const u_char *bp, register u_int length)
 {
        register const struct ip6_hdr *ip6;
        register int advance;
-       register int len;
+       register u_int len;
        register const u_char *cp;
        int nh;
        int fragmented = 0;
@@ -80,10 +80,7 @@ ip6_print(register const u_char *bp, register int length)
                ip6 = (struct ip6_hdr *)abuf;
        }
 #endif
-       if ((u_char *)(ip6 + 1) > snapend) {
-               printf("[|ip6]");
-               return;
-       }
+       TCHECK(*ip6);
        if (length < sizeof (struct ip6_hdr)) {
                (void)printf("truncated-ip6 %d", length);
                return;
@@ -100,7 +97,7 @@ ip6_print(register const u_char *bp, register int length)
        while (cp < snapend) {
                cp += advance;
 
-               if (cp == (u_char *)(ip6 + 1)
+               if (cp == (const u_char *)(ip6 + 1)
                 && nh != IPPROTO_TCP && nh != IPPROTO_UDP) {
                        (void)printf("%s > %s: ", ip6addr_string(&ip6->ip6_src),
                                     ip6addr_string(&ip6->ip6_dst));
@@ -222,6 +219,9 @@ ip6_print(register const u_char *bp, register int length)
                        (void)printf(", hlim %d", (int)ip6->ip6_hlim);
                printf(")");
        }
+       return;
+trunc:
+       (void)printf("[|ip6]");
 }
 
 #endif /* INET6 */