X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/d9740d6f4c1b81bd431c1d195ae9d4623fe535ef..cfa9ab5f80dd9a1024e1a765bc0d24c57652b6bc:/print-udp.c?ds=inline

diff --git a/print-udp.c b/print-udp.c
index b315f1e7..fc0710d6 100644
--- a/print-udp.c
+++ b/print-udp.c
@@ -369,10 +369,7 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
 	if (ndo->ndo_packettype != PT_RPC)
 		udpipaddr_print(ndo, ip, sport, dport);
 
-	if (length < sizeof(struct udphdr)) {
-		ND_PRINT("undersized-udp %u", length);
-		goto invalid;
-	}
+	ND_LCHECKMSG_ZU(length, sizeof(struct udphdr), "undersized-udp");
 	ulen = GET_BE_U_2(up->uh_ulen);
 	udp_sum = GET_BE_U_2(up->uh_sum);
 	/*
@@ -382,10 +379,7 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
 	 */
 	if (ulen == 0 && length > 65535)
 		ulen = length;
-	if (ulen < sizeof(struct udphdr)) {
-		ND_PRINT("undersized-udplength %u", ulen);
-		goto invalid;
-	}
+	ND_LCHECKMSG_ZU(ulen, sizeof(struct udphdr), "undersized-udplength");
 	ulen -= sizeof(struct udphdr);
 	length -= sizeof(struct udphdr);
 	if (ulen < length)