X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/e2982e7f6f0b624a773ec5a58885ee80fab46d34..a8abce5c5e2dce2ba6dbccd5d3829da104b80f9c:/print-msdp.c

diff --git a/print-msdp.c b/print-msdp.c
index 68bb3159..00481836 100644
--- a/print-msdp.c
+++ b/print-msdp.c
@@ -19,10 +19,10 @@
 /* \summary: Multicast Source Discovery Protocol (MSDP) printer */
 
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
-#include <netdissect-stdinc.h>
+#include "netdissect-stdinc.h"
 
 #include "netdissect.h"
 #include "addrtoname.h"
@@ -35,6 +35,7 @@ msdp_print(netdissect_options *ndo, const u_char *sp, u_int length)
 {
 	unsigned int type, len;
 
+	ndo->ndo_protocol = "msdp";
 	ND_TCHECK_3(sp);
 	/* See if we think we're at the beginning of a compound packet */
 	type = EXTRACT_U_1(sp);
@@ -42,7 +43,7 @@ msdp_print(netdissect_options *ndo, const u_char *sp, u_int length)
 	if (len > 1500 || len < 3 || type == 0 || type > MSDP_TYPE_MAX)
 		goto trunc;	/* not really truncated, but still not decodable */
 	ND_PRINT(" msdp:");
-	while (length > 0) {
+	while (length != 0) {
 		ND_TCHECK_3(sp);
 		type = EXTRACT_U_1(sp);
 		len = EXTRACT_BE_U_2(sp + 1);
@@ -50,6 +51,8 @@ msdp_print(netdissect_options *ndo, const u_char *sp, u_int length)
 			ND_PRINT(" [len %u]", len);
 		if (len < 3)
 			goto trunc;
+		if (length < len)
+			goto trunc;
 		sp += 3;
 		length -= 3;
 		switch (type) {
@@ -79,13 +82,13 @@ msdp_print(netdissect_options *ndo, const u_char *sp, u_int length)
 		case 4:
 			ND_PRINT(" Keepalive");
 			if (len != 3)
-				ND_PRINT("[len=%d] ", len);
+				ND_PRINT("[len=%u] ", len);
 			break;
 		case 5:
 			ND_PRINT(" Notification");
 			break;
 		default:
-			ND_PRINT(" [type=%d len=%d]", type, len);
+			ND_PRINT(" [type=%u len=%u]", type, len);
 			break;
 		}
 		sp += (len - 3);
@@ -93,12 +96,5 @@ msdp_print(netdissect_options *ndo, const u_char *sp, u_int length)
 	}
 	return;
 trunc:
-	ND_PRINT(" [|msdp]");
+	nd_print_trunc(ndo);
 }
-
-/*
- * Local Variables:
- * c-style: whitesmith
- * c-basic-offset: 8
- * End:
- */