PIM: Fix some length checks

[tcpdump] / print-loopback.c

diff --git a/print-loopback.c b/print-loopback.c
index ea7d728023ff60e919f950f203e860286eb1e7d4..47535d0395f5fb56d67b38a06ec3ff53adae3c7c 100644 (file)
--- a/print-loopback.c
+++ b/print-loopback.c
@@ -29,7 +29,7 @@
 
 /*
  * originally defined as the Ethernet Configuration Testing Protocol.
- * specification: http://www.mit.edu/people/jhawk/ctp.pdf
+ * specification: https://www.mit.edu/people/jhawk/ctp.pdf
  */
 
 #ifdef HAVE_CONFIG_H
@@ -62,7 +62,7 @@ loopback_message_print(netdissect_options *ndo, const u_char *cp, const u_int le
                goto invalid;
        /* function */
        ND_TCHECK_2(cp);
-       function = EXTRACT_LE_U_2(cp);
+       function = GET_LE_U_2(cp);
        cp += 2;
        ND_PRINT(", %s", tok2str(fcode_str, " invalid (%u)", function));
 
@@ -72,7 +72,7 @@ loopback_message_print(netdissect_options *ndo, const u_char *cp, const u_int le
                                goto invalid;
                        /* receipt number */
                        ND_TCHECK_2(cp);
-                       ND_PRINT(", receipt number %u", EXTRACT_LE_U_2(cp));
+                       ND_PRINT(", receipt number %u", GET_LE_U_2(cp));
                        cp += 2;
                        /* data */
                        ND_PRINT(", data (%u octets)", len - 4);
@@ -115,7 +115,7 @@ loopback_print(netdissect_options *ndo, const u_char *cp, const u_int len)
                goto invalid;
        /* skipCount */
        ND_TCHECK_2(cp);
-       skipCount = EXTRACT_LE_U_2(cp);
+       skipCount = GET_LE_U_2(cp);
        cp += 2;
        ND_PRINT(", skipCount %u", skipCount);
        if (skipCount % 8)