Make it clearer that the hex or hex-and-ASCII dump for "-x", "-xx",

[tcpdump] / print-cdp.c

diff --git a/print-cdp.c b/print-cdp.c
index a0cdf2a3fc3f1df17e51e82b011f7771098fa6fb..f8f4427c046ba0b4235d62aa7a18f5c63ab13380 100644 (file)
--- a/print-cdp.c
+++ b/print-cdp.c
@@ -26,7 +26,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-cdp.c,v 1.23 2004-03-24 00:41:13 guy Exp $";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-cdp.c,v 1.25 2004-10-07 14:53:11 hannes Exp $";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -41,6 +41,7 @@ static const char rcsid[] _U_ =
 #include "interface.h"
 #include "addrtoname.h"
 #include "extract.h"                   /* must come after interface.h */
+#include "nlpid.h"
 
 #define CDP_HEADER_LEN  4
 
@@ -243,11 +244,12 @@ cdp_print_addr(const u_char * p, int l)
        };
 #endif
 
+       TCHECK2(*p, 2);
        num = EXTRACT_32BITS(p);
        p += 4;
 
        while (p < endp && num >= 0) {
-               TCHECK2(p, 2);
+               TCHECK2(*p, 2);
                if (p + 2 > endp)
                        goto trunc;
                pt = p[0];              /* type of "protocol" field */
@@ -259,7 +261,7 @@ cdp_print_addr(const u_char * p, int l)
                        goto trunc;
                al = EXTRACT_16BITS(&p[pl]);    /* address length */
 
-               if (pt == PT_NLPID && pl == 1 && *p == 0xcc && al == 4) {
+               if (pt == PT_NLPID && pl == 1 && *p == NLPID_IP && al == 4) {
                        /*
                         * IPv4: protocol type = NLPID, protocol length = 1
                         * (1-byte NLPID), protocol = 0xcc (NLPID for IPv4),