X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/6288c273b66fa124b58af66026151fff1d5931c2..f67e46a634dd3bdcefa9fc09dbef6baae1b1d1ed:/print-null.c?ds=inline

diff --git a/print-null.c b/print-null.c
index dea50ac2..037a35fd 100644
--- a/print-null.c
+++ b/print-null.c
@@ -21,14 +21,11 @@
 
 /* \summary: BSD loopback device printer */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
 
 #include "netdissect-stdinc.h"
 
-#include <string.h>
-
+#define ND_LONGJMP_FROM_TCHECK
 #include "netdissect.h"
 #include "extract.h"
 #include "af.h"
@@ -82,11 +79,7 @@ null_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char
 	uint32_t family;
 
 	ndo->ndo_protocol = "null";
-	if (caplen < NULL_HDRLEN) {
-		ndo->ndo_ll_hdr_len += caplen;
-		nd_print_trunc(ndo);
-		return;
-	}
+	ND_TCHECK_LEN(p, NULL_HDRLEN);
 	ndo->ndo_ll_hdr_len += NULL_HDRLEN;
 
 	family = GET_HE_U_4(p);