Add bounds checks.

diff --git a/print-pim.c b/print-pim.c
index ea7d8fed25189c9cf58239c415aa083741510b43..af5bf53b134b91073966c5ea91a0617dec371ccd 100644 (file)
--- a/print-pim.c
+++ b/print-pim.c
@@ -21,7 +21,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-pim.c,v 1.42 2004-03-18 14:12:18 hannes Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-pim.c,v 1.43 2004-03-24 02:51:10 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -163,6 +163,7 @@ pimv1_join_prune_print(register const u_char *bp, register u_int len)
        while (ngroups--) {
                TCHECK2(bp[0], 4);
                (void)printf("\n\tGroup: %s", ipaddr_string(bp));
+               TCHECK2(bp[4], 4);
                if (EXTRACT_32BITS(&bp[4]) != 0xffffffff)
                        (void)printf("/%s", ipaddr_string(&bp[4]));
                TCHECK2(bp[8], 4);