Squelch some signed-vs-unsigned comparison warnings.

diff --git a/print-dhcp6.c b/print-dhcp6.c
index c5a057aefcd596b873b2c7cbf433a1675b8db5fc..73b7b383a595d5cbdbf44b95f4cac562ed46375f 100644 (file)
--- a/print-dhcp6.c
+++ b/print-dhcp6.c
@@ -38,7 +38,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-dhcp6.c,v 1.34 2004-07-05 07:49:30 itojun Exp $";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-dhcp6.c,v 1.35 2004-07-06 22:16:03 guy Exp $";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -302,7 +302,7 @@ dhcp6opt_print(const u_char *cp, const u_char *ep)
        struct dhcp6_ia ia;
        struct dhcp6_ia_prefix ia_prefix;
        struct dhcp6_auth authopt;
-       int authinfolen, authrealmlen;
+       u_int authinfolen, authrealmlen;
 
        if (cp == ep)
                return;
@@ -452,11 +452,11 @@ dhcp6opt_print(const u_char *cp, const u_char *ep)
                        case DH6OPT_AUTHPROTO_DELAYED:
                                if (authinfolen == 0)
                                        break;
-                               authrealmlen = authinfolen - 20;
-                               if (authrealmlen < 0) {
+                               if (authinfolen < 20) {
                                        printf(" ??");
                                        break;
                                }
+                               authrealmlen = authinfolen - 20;
                                if (authrealmlen > 0) {
                                        printf(", realm: ");
                                }