Fix some "unsigned int" vs. "size_t" issues (they're not necessarily the

[tcpdump] / print-sll.c

diff --git a/print-sll.c b/print-sll.c
index 8c3d4b3da491a2084238703e53b8503b34f8a065..d96b3de29ee208da72a24fb6bf70e9c12e5d4ecf 100644 (file)
--- a/print-sll.c
+++ b/print-sll.c
@@ -20,7 +20,7 @@
  */
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-sll.c,v 1.15 2004-03-17 23:24:38 guy Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-sll.c,v 1.19 2005-11-13 12:12:43 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -36,54 +36,73 @@ static const char rcsid[] _U_ =
 #include "interface.h"
 #include "addrtoname.h"
 #include "ethertype.h"
+#include "extract.h"
 
 #include "ether.h"
 #include "sll.h"
 
+const struct tok sll_pkttype_values[] = {
+    { LINUX_SLL_HOST, "In" },
+    { LINUX_SLL_BROADCAST, "B" },
+    { LINUX_SLL_MULTICAST, "M" },
+    { LINUX_SLL_OTHERHOST, "P" },
+    { LINUX_SLL_OUTGOING, "Out" },
+    { 0, NULL}
+};
+
 static inline void
 sll_print(register const struct sll_header *sllp, u_int length)
 {
-       u_short halen;
-
-       switch (ntohs(sllp->sll_pkttype)) {
-
-       case LINUX_SLL_HOST:
-               (void)printf("< ");
-               break;
-
-       case LINUX_SLL_BROADCAST:
-               (void)printf("B ");
-               break;
-
-       case LINUX_SLL_MULTICAST:
-               (void)printf("M ");
-               break;
-
-       case LINUX_SLL_OTHERHOST:
-               (void)printf("P ");
-               break;
+       u_short ether_type;
 
-       case LINUX_SLL_OUTGOING:
-               (void)printf("> ");
-               break;
-
-       default:
-               (void)printf("? ");
-               break;
-       }
+        printf("%3s ",tok2str(sll_pkttype_values,"?",EXTRACT_16BITS(&sllp->sll_pkttype)));
 
        /*
         * XXX - check the link-layer address type value?
         * For now, we just assume 6 means Ethernet.
         * XXX - print others as strings of hex?
         */
-       halen = ntohs(sllp->sll_halen);
-       if (halen == 6)
+       if (EXTRACT_16BITS(&sllp->sll_halen) == 6)
                (void)printf("%s ", etheraddr_string(sllp->sll_addr));
 
-       if (!qflag)
-               (void)printf("%s ", etherproto_string(sllp->sll_protocol));
-       (void)printf("%d: ", length);
+       if (!qflag) {
+               ether_type = EXTRACT_16BITS(&sllp->sll_protocol);
+       
+               if (ether_type <= ETHERMTU) {
+                       /*
+                        * Not an Ethernet type; what type is it?
+                        */
+                       switch (ether_type) {
+
+                       case LINUX_SLL_P_802_3:
+                               /*
+                                * Ethernet_802.3 IPX frame.
+                                */
+                               (void)printf("802.3");
+                               break;
+
+                       case LINUX_SLL_P_802_2:
+                               /*
+                                * 802.2.
+                                */
+                               (void)printf("802.3");
+                               break;
+
+                       default:
+                               /*
+                                * What is it?
+                                */
+                               (void)printf("ethertype Unknown (0x%04x)",
+                                   ether_type);
+                               break;
+                       }
+               } else {
+                       (void)printf("ethertype %s (0x%04x)",
+                           tok2str(ethertype_values, "Unknown", ether_type),
+                           ether_type);
+               }
+               (void)printf(", length %u: ", length);
+       }
 }
 
 /*
@@ -129,7 +148,6 @@ sll_if_print(const struct pcap_pkthdr *h, const u_char *p)
         * Is it (gag) an 802.3 encapsulation, or some non-Ethernet
         * packet type?
         */
-       extracted_ethertype = 0;
        if (ether_type <= ETHERMTU) {
                /*
                 * Yes - what type is it?
@@ -154,6 +172,9 @@ sll_if_print(const struct pcap_pkthdr *h, const u_char *p)
                        break;
 
                default:
+                       extracted_ethertype = 0;
+                       /*FALLTHROUGH*/
+
                unknown:
                        /* ether_type not known, print raw packet */
                        if (!eflag)
@@ -162,7 +183,7 @@ sll_if_print(const struct pcap_pkthdr *h, const u_char *p)
                                printf("(LLC %s) ",
                               etherproto_string(htons(extracted_ethertype)));
                        }
-                       if (!xflag && !qflag)
+                       if (!suppress_default_print)
                                default_print(p, caplen);
                        break;
                }
@@ -171,7 +192,7 @@ sll_if_print(const struct pcap_pkthdr *h, const u_char *p)
                /* ether_type not known, print raw packet */
                if (!eflag)
                        sll_print(sllp, length + SLL_HDR_LEN);
-               if (!xflag && !qflag)
+               if (!suppress_default_print)
                        default_print(p, caplen);
        }