Use more the EXTRACT_U_1() macro to fetch a one-byte value (25/n)

In ND_PRINT() macro call (step 4).

(*p op1 e1) op2 e2

diff --git a/print-ip.c b/print-ip.c
index bffbd7f18ed64471eec2c8f2b1e59ed6f0745ed6..8e58299dd6006c62a8120578a3e250274a8d7bd8 100644 (file)
--- a/print-ip.c
+++ b/print-ip.c
@@ -715,7 +715,7 @@ ipN_print(netdissect_options *ndo, register const u_char *bp, register u_int len
                ip6_print (ndo, bp, length);
                break;
        default:
                ip6_print (ndo, bp, length);
                break;
        default:

-               ND_PRINT((ndo, "unknown ip %d", (*bp & 0xF0) >> 4));
+               ND_PRINT((ndo, "unknown ip %d", (EXTRACT_U_1(bp) & 0xF0) >> 4));

                break;
        }
        return;
                break;
        }
        return;