Fixed I-Am-Router-To-Network handling in cases of a malformed packet. The packet seen in the field was a I-Am-Router-To-Network but there was an extra "Data" byte of 0x55 at the end. Thank you, Ettore.

2015-03-20 19:47:57 +00:00
parent e98f74424d
commit 9631b65fc5
2 changed files with 29 additions and 26 deletions
@@ -108,16 +108,19 @@ static void My_Router_Handler(
                }
            }
            printf("\nNetworks: ");
-            while (npdu_len) {
+            while (npdu_len >= 2) {
                len = decode_unsigned16(&npdu[npdu_offset], &dnet);
                printf("%hu", dnet);
                npdu_len -= len;
                npdu_offset += len;
-                if (npdu_len) {
+                if (npdu_len >= 2) {
                    printf(", ");
                }
            }
            printf("\n");
+            if (npdu_len) {
+                printf("Warning! Extra byte received!\n");
+            }
            break;
        case NETWORK_MESSAGE_I_COULD_BE_ROUTER_TO_NETWORK:
        case NETWORK_MESSAGE_REJECT_MESSAGE_TO_NETWORK: