X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/436ced3bd83f6b3a5b4a206538c56189837add59..1ff54606670b48238857a93a8234356f433df093:/print-loopback.c

diff --git a/print-loopback.c b/print-loopback.c
index 2d5fca5d..9ef77a97 100644
--- a/print-loopback.c
+++ b/print-loopback.c
@@ -1,9 +1,4 @@
 /*
- * This module implements decoding of the Loopback Protocol, originally
- * defined as the Configuration Testing Protocol. It is based on the following
- * specification:
- * http://www.mit.edu/people/jhawk/ctp.pdf
- *
  * Copyright (c) 2014 The TCPDUMP project
  * All rights reserved.
  *
@@ -30,6 +25,13 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+/* \summary: Loopback Protocol printer */
+
+/*
+ * originally defined as the Ethernet Configuration Testing Protocol.
+ * specification: http://www.mit.edu/people/jhawk/ctp.pdf
+ */
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -61,8 +63,8 @@ loopback_message_print(netdissect_options *ndo, const u_char *cp, const u_int le
 	if (len < 2)
 		goto invalid;
 	/* function */
-	ND_TCHECK2(*cp, 2);
-	function = EXTRACT_LE_16BITS(cp);
+	ND_TCHECK_2(cp);
+	function = EXTRACT_LE_U_2(cp);
 	cp += 2;
 	ND_PRINT((ndo, ", %s", tok2str(fcode_str, " invalid (%u)", function)));
 
@@ -71,8 +73,8 @@ loopback_message_print(netdissect_options *ndo, const u_char *cp, const u_int le
 			if (len < 4)
 				goto invalid;
 			/* receipt number */
-			ND_TCHECK2(*cp, 2);
-			ND_PRINT((ndo, ", receipt number %u", EXTRACT_LE_16BITS(cp)));
+			ND_TCHECK_2(cp);
+			ND_PRINT((ndo, ", receipt number %u", EXTRACT_LE_U_2(cp)));
 			cp += 2;
 			/* data */
 			ND_PRINT((ndo, ", data (%u octets)", len - 4));
@@ -113,8 +115,8 @@ loopback_print(netdissect_options *ndo, const u_char *cp, const u_int len)
 	if (len < 2)
 		goto invalid;
 	/* skipCount */
-	ND_TCHECK2(*cp, 2);
-	skipCount = EXTRACT_LE_16BITS(cp);
+	ND_TCHECK_2(cp);
+	skipCount = EXTRACT_LE_U_2(cp);
 	cp += 2;
 	ND_PRINT((ndo, ", skipCount %u", skipCount));
 	if (skipCount % 8)