remove redundant ND_TCHECK, let GET_ routines handle checks

[tcpdump] / print-igmp.c

diff --git a/print-igmp.c b/print-igmp.c
index 3205a224740bd544ae4a8eac3db2a552890ca608..8c5bc15d59ebde0270f618b64cbc3b5502af0909 100644 (file)
--- a/print-igmp.c
+++ b/print-igmp.c
@@ -119,11 +119,11 @@ print_mtrace(netdissect_options *ndo,
        return;
     }
     ND_PRINT("mtrace %u: %s to %s reply-to %s",
-        EXTRACT_BE_U_3(tr->tr_qid),
-        ipaddr_string(ndo, tr->tr_src), ipaddr_string(ndo, tr->tr_dst),
-        ipaddr_string(ndo, tr->tr_raddr));
-    if (IN_CLASSD(EXTRACT_BE_U_4(tr->tr_raddr)))
-        ND_PRINT(" with-ttl %u", EXTRACT_U_1(tr->tr_rttl));
+        GET_BE_U_3(tr->tr_qid),
+        GET_IPADDR_STRING(tr->tr_src), GET_IPADDR_STRING(tr->tr_dst),
+        GET_IPADDR_STRING(tr->tr_raddr));
+    if (IN_CLASSD(GET_BE_U_4(tr->tr_raddr)))
+        ND_PRINT(" with-ttl %u", GET_U_1(tr->tr_rttl));
     return;
 trunc:
     nd_print_trunc(ndo);
@@ -141,11 +141,11 @@ print_mresp(netdissect_options *ndo,
        return;
     }
     ND_PRINT("mresp %u: %s to %s reply-to %s",
-        EXTRACT_BE_U_3(tr->tr_qid),
-        ipaddr_string(ndo, tr->tr_src), ipaddr_string(ndo, tr->tr_dst),
-        ipaddr_string(ndo, tr->tr_raddr));
-    if (IN_CLASSD(EXTRACT_BE_U_4(tr->tr_raddr)))
-        ND_PRINT(" with-ttl %u", EXTRACT_U_1(tr->tr_rttl));
+        GET_BE_U_3(tr->tr_qid),
+        GET_IPADDR_STRING(tr->tr_src), GET_IPADDR_STRING(tr->tr_dst),
+        GET_IPADDR_STRING(tr->tr_raddr));
+    if (IN_CLASSD(GET_BE_U_4(tr->tr_raddr)))
+        ND_PRINT(" with-ttl %u", GET_U_1(tr->tr_rttl));
     return;
 trunc:
     nd_print_trunc(ndo);
@@ -163,8 +163,7 @@ print_igmpv3_report(netdissect_options *ndo,
        ND_PRINT(" [invalid len %u]", len);
        return;
     }
-    ND_TCHECK_2(bp + 6);
-    ngroups = EXTRACT_BE_U_2(bp + 6);
+    ngroups = GET_BE_U_2(bp + 6);
     ND_PRINT(", %u group record(s)", ngroups);
     if (ndo->ndo_vflag > 0) {
        /* Print the group records */
@@ -175,10 +174,10 @@ print_igmpv3_report(netdissect_options *ndo,
                return;
            }
            ND_TCHECK_4(bp + (group + 4));
-            ND_PRINT(" [gaddr %s", ipaddr_string(ndo, bp + group + 4));
+            ND_PRINT(" [gaddr %s", GET_IPADDR_STRING(bp + group + 4));
            ND_PRINT(" %s", tok2str(igmpv3report2str, " [v3-report-#%u]",
-                                                               EXTRACT_U_1(bp + group)));
-            nsrcs = EXTRACT_BE_U_2(bp + group + 2);
+                                                               GET_U_1(bp + group)));
+            nsrcs = GET_BE_U_2(bp + group + 2);
            /* Check the number of sources and print them */
            if (len < group+8+(nsrcs<<2)) {
                ND_PRINT(" [invalid number of sources %u]", nsrcs);
@@ -191,7 +190,7 @@ print_igmpv3_report(netdissect_options *ndo,
                 ND_PRINT(" {");
                 for (j=0; j<nsrcs; j++) {
                    ND_TCHECK_4(bp + (group + 8 + (j << 2)));
-                   ND_PRINT(" %s", ipaddr_string(ndo, bp + group + 8 + (j << 2)));
+                   ND_PRINT(" %s", GET_IPADDR_STRING(bp + group + 8 + (j << 2)));
                }
                 ND_PRINT(" }");
             }
@@ -220,8 +219,7 @@ print_igmpv3_query(netdissect_options *ndo,
        ND_PRINT(" [invalid len %u]", len);
        return;
     }
-    ND_TCHECK_1(bp + 1);
-    mrc = EXTRACT_U_1(bp + 1);
+    mrc = GET_U_1(bp + 1);
     if (mrc < 128) {
        mrt = mrc;
     } else {
@@ -236,12 +234,10 @@ print_igmpv3_query(netdissect_options *ndo,
         }
        ND_PRINT("]");
     }
-    ND_TCHECK_4(bp + 4);
-    if (EXTRACT_BE_U_4(bp + 4) == 0)
+    if (GET_BE_U_4(bp + 4) == 0)
        return;
-    ND_PRINT(" [gaddr %s", ipaddr_string(ndo, bp + 4));
-    ND_TCHECK_2(bp + 10);
-    nsrcs = EXTRACT_BE_U_2(bp + 10);
+    ND_PRINT(" [gaddr %s", GET_IPADDR_STRING(bp + 4));
+    nsrcs = GET_BE_U_2(bp + 10);
     if (nsrcs > 0) {
        if (len < 12 + (nsrcs << 2))
            ND_PRINT(" [invalid number of sources]");
@@ -249,7 +245,7 @@ print_igmpv3_query(netdissect_options *ndo,
            ND_PRINT(" {");
            for (i=0; i<nsrcs; i++) {
                ND_TCHECK_4(bp + (12 + (i << 2)));
-               ND_PRINT(" %s", ipaddr_string(ndo, bp + 12 + (i << 2)));
+               ND_PRINT(" %s", GET_IPADDR_STRING(bp + 12 + (i << 2)));
            }
            ND_PRINT(" }");
        } else
@@ -273,44 +269,38 @@ igmp_print(netdissect_options *ndo,
         return;
     }
 
-    ND_TCHECK_1(bp);
-    switch (EXTRACT_U_1(bp)) {
+    switch (GET_U_1(bp)) {
     case 0x11:
         ND_PRINT("igmp query");
        if (len >= 12)
            print_igmpv3_query(ndo, bp, len);
        else {
-            ND_TCHECK_1(bp + 1);
-           if (EXTRACT_U_1(bp + 1)) {
+           if (GET_U_1(bp + 1)) {
                ND_PRINT(" v2");
-               if (EXTRACT_U_1(bp + 1) != 100)
-                   ND_PRINT(" [max resp time %u]", EXTRACT_U_1(bp + 1));
+               if (GET_U_1(bp + 1) != 100)
+                   ND_PRINT(" [max resp time %u]", GET_U_1(bp + 1));
            } else
                ND_PRINT(" v1");
-            ND_TCHECK_4(bp + 4);
-           if (EXTRACT_BE_U_4(bp + 4))
-                ND_PRINT(" [gaddr %s]", ipaddr_string(ndo, bp + 4));
+           if (GET_BE_U_4(bp + 4))
+                ND_PRINT(" [gaddr %s]", GET_IPADDR_STRING(bp + 4));
             if (len != 8)
                 ND_PRINT(" [len %u]", len);
        }
         break;
     case 0x12:
-        ND_TCHECK_4(bp + 4);
-        ND_PRINT("igmp v1 report %s", ipaddr_string(ndo, bp + 4));
+        ND_PRINT("igmp v1 report %s", GET_IPADDR_STRING(bp + 4));
         if (len != 8)
             ND_PRINT(" [len %u]", len);
         break;
     case 0x16:
-        ND_TCHECK_4(bp + 4);
-        ND_PRINT("igmp v2 report %s", ipaddr_string(ndo, bp + 4));
+        ND_PRINT("igmp v2 report %s", GET_IPADDR_STRING(bp + 4));
         break;
     case 0x22:
         ND_PRINT("igmp v3 report");
        print_igmpv3_report(ndo, bp, len);
         break;
     case 0x17:
-        ND_TCHECK_4(bp + 4);
-        ND_PRINT("igmp leave %s", ipaddr_string(ndo, bp + 4));
+        ND_PRINT("igmp leave %s", GET_IPADDR_STRING(bp + 4));
         break;
     case 0x13:
         ND_PRINT("igmp dvmrp");
@@ -330,7 +320,7 @@ igmp_print(netdissect_options *ndo,
         print_mtrace(ndo, bp, len);
         break;
     default:
-        ND_PRINT("igmp-%u", EXTRACT_U_1(bp));
+        ND_PRINT("igmp-%u", GET_U_1(bp));
         break;
     }
 
@@ -339,9 +329,6 @@ igmp_print(netdissect_options *ndo,
         vec[0].ptr = bp;
         vec[0].len = len;
         if (in_cksum(vec, 1))
-            ND_PRINT(" bad igmp cksum %x!", EXTRACT_BE_U_2(bp + 2));
+            ND_PRINT(" bad igmp cksum %x!", GET_BE_U_2(bp + 2));
     }
-    return;
-trunc:
-    nd_print_trunc(ndo);
 }