IPv6: Print the protocol name before any test

[tcpdump] / print-sflow.c

diff --git a/print-sflow.c b/print-sflow.c
index 4a7322cec5421657b62f1246f505d00d55e174d4..ea947ba2b4f0ce10d57332c600cf7184037a98a5 100644 (file)
--- a/print-sflow.c
+++ b/print-sflow.c
@@ -120,22 +120,22 @@ struct sflow_expanded_flow_sample_t {
     nd_uint32_t records;
 };
 
-#define        SFLOW_FLOW_RAW_PACKET                   1
-#define        SFLOW_FLOW_ETHERNET_FRAME               2
-#define        SFLOW_FLOW_IPV4_DATA                    3
-#define        SFLOW_FLOW_IPV6_DATA                    4
-#define        SFLOW_FLOW_EXTENDED_SWITCH_DATA         1001
-#define        SFLOW_FLOW_EXTENDED_ROUTER_DATA         1002
-#define        SFLOW_FLOW_EXTENDED_GATEWAY_DATA        1003
-#define        SFLOW_FLOW_EXTENDED_USER_DATA           1004
-#define        SFLOW_FLOW_EXTENDED_URL_DATA            1005
-#define        SFLOW_FLOW_EXTENDED_MPLS_DATA           1006
-#define        SFLOW_FLOW_EXTENDED_NAT_DATA            1007
-#define        SFLOW_FLOW_EXTENDED_MPLS_TUNNEL         1008
-#define        SFLOW_FLOW_EXTENDED_MPLS_VC             1009
-#define        SFLOW_FLOW_EXTENDED_MPLS_FEC            1010
-#define        SFLOW_FLOW_EXTENDED_MPLS_LVP_FEC        1011
-#define        SFLOW_FLOW_EXTENDED_VLAN_TUNNEL         1012
+#define        SFLOW_FLOW_RAW_PACKET                   1
+#define        SFLOW_FLOW_ETHERNET_FRAME               2
+#define        SFLOW_FLOW_IPV4_DATA                    3
+#define        SFLOW_FLOW_IPV6_DATA                    4
+#define        SFLOW_FLOW_EXTENDED_SWITCH_DATA         1001
+#define        SFLOW_FLOW_EXTENDED_ROUTER_DATA         1002
+#define        SFLOW_FLOW_EXTENDED_GATEWAY_DATA        1003
+#define        SFLOW_FLOW_EXTENDED_USER_DATA           1004
+#define        SFLOW_FLOW_EXTENDED_URL_DATA            1005
+#define        SFLOW_FLOW_EXTENDED_MPLS_DATA           1006
+#define        SFLOW_FLOW_EXTENDED_NAT_DATA            1007
+#define        SFLOW_FLOW_EXTENDED_MPLS_TUNNEL         1008
+#define        SFLOW_FLOW_EXTENDED_MPLS_VC             1009
+#define        SFLOW_FLOW_EXTENDED_MPLS_FEC            1010
+#define        SFLOW_FLOW_EXTENDED_MPLS_LVP_FEC        1011
+#define        SFLOW_FLOW_EXTENDED_VLAN_TUNNEL         1012
 
 static const struct tok sflow_flow_type_values[] = {
     { SFLOW_FLOW_RAW_PACKET, "Raw packet"},
@@ -876,6 +876,7 @@ sflow_print(netdissect_options *ndo,
                len);
 
         /* skip Common header */
+        ND_ICHECK_ZU(tlen, <, sizeof(struct sflow_datagram_t));
         tptr += sizeof(struct sflow_datagram_t);
         tlen -= sizeof(struct sflow_datagram_t);
     } else {
@@ -891,6 +892,7 @@ sflow_print(netdissect_options *ndo,
                len);
 
         /* skip Common header */
+        ND_ICHECK_ZU(tlen, <, sizeof(struct sflow_v6_datagram_t));
         tptr += sizeof(struct sflow_v6_datagram_t);
         tlen -= sizeof(struct sflow_v6_datagram_t);
     }