X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/61c422a88caefe986c2bc0a7f2f3028f696fa5cd..1a04b92e365f5ed01ca38619b41bcc4fc9cbd63c:/print-hncp.c?ds=sidebyside

diff --git a/print-hncp.c b/print-hncp.c
index 559c7032..00ab04d1 100644
--- a/print-hncp.c
+++ b/print-hncp.c
@@ -207,12 +207,12 @@ print_prefix(netdissect_options *ndo, const u_char *prefix, u_int max_length)
     int plenbytes;
     char buf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx::/128")];
 
-    if (prefix[0] >= 96 && max_length >= IPV4_MAPPED_HEADING_LEN + 1 &&
+    if (EXTRACT_U_1(prefix) >= 96 && max_length >= IPV4_MAPPED_HEADING_LEN + 1 &&
         is_ipv4_mapped_address(prefix + 1)) {
         struct in_addr addr;
         u_int plen;
 
-        plen = prefix[0]-96;
+        plen = EXTRACT_U_1(prefix) - 96;
         if (32 < plen)
             return -1;
         max_length -= 1;
@@ -242,7 +242,8 @@ print_dns_label(netdissect_options *ndo,
 {
     u_int length = 0;
     while (length < max_length) {
-        u_int lab_length = cp[length++];
+        u_int lab_length = EXTRACT_U_1(cp + length);
+        length++;
         if (lab_length == 0)
             return (int)length;
         if (length > 1 && print)
@@ -274,8 +275,8 @@ dhcpv4_print(netdissect_options *ndo,
         if (i + 2 > length)
             return -1;
         tlv = cp + i;
-        type = tlv[0];
-        optlen = tlv[1];
+        type = EXTRACT_U_1(tlv);
+        optlen = EXTRACT_U_1(tlv + 1);
         value = tlv + 2;
 
         ND_PRINT((ndo, "\n"));
@@ -430,7 +431,7 @@ hncp_print_rec(netdissect_options *ndo,
         type = EXTRACT_BE_U_2(tlv);
         bodylen = EXTRACT_BE_U_2(tlv + 2);
         value = tlv + 4;
-        ND_TCHECK2(*value, bodylen);
+        ND_TCHECK_LEN(value, bodylen);
         if (i + bodylen + 4 > length)
             goto invalid;
 
@@ -654,7 +655,7 @@ hncp_print_rec(netdissect_options *ndo,
                 ND_PRINT((ndo, " %s", istr));
                 break;
             }
-            policy = value[0];
+            policy = EXTRACT_U_1(value);
             ND_PRINT((ndo, " type: "));
             if (policy == 0) {
                 if (bodylen != 1) {
@@ -729,7 +730,7 @@ hncp_print_rec(netdissect_options *ndo,
                 ND_PRINT((ndo, " %s", istr));
                 break;
             }
-            prty = value[4] & 0xf;
+            prty = EXTRACT_U_1(value + 4) & 0xf;
             ND_PRINT((ndo, " EPID: %08x Prty: %u",
                 EXTRACT_BE_U_4(value),
                 prty
@@ -807,7 +808,7 @@ hncp_print_rec(netdissect_options *ndo,
                 ND_PRINT((ndo, " %s", istr));
                 break;
             }
-            l = value[16];
+            l = EXTRACT_U_1(value + 16);
             if (bodylen < 17 + l) {
                 ND_PRINT((ndo, " %s", istr));
                 break;