X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/63216357de0aa557888329c614946626e37d7c6b..5ef0bcb5edd748de9d9af13c40da0395dfdd94e8:/print-udp.c

diff --git a/print-udp.c b/print-udp.c
index 75c4fb91..151b7e6b 100644
--- a/print-udp.c
+++ b/print-udp.c
@@ -103,7 +103,6 @@ vat_print(netdissect_options *ndo, const u_char *hdr, u_int length)
 		ND_PRINT("udp/va/vat, length %u < 2", length);
 		return;
 	}
-	ND_TCHECK_2((const u_int *)hdr);
 	ts = GET_BE_U_2(hdr);
 	if ((ts & 0xf060) != 0) {
 		/* probably vt */
@@ -118,9 +117,7 @@ vat_print(netdissect_options *ndo, const u_char *hdr, u_int length)
 			ND_PRINT("udp/vat, length %u < 8", length);
 			return;
 		}
-		ND_TCHECK_4(&((const u_int *)hdr)[0]);
 		i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
-		ND_TCHECK_4(&((const u_int *)hdr)[1]);
 		i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
 		ND_PRINT("udp/vat %u c%u %u%s",
 			length - 8,
@@ -132,10 +129,6 @@ vat_print(netdissect_options *ndo, const u_char *hdr, u_int length)
 		if (i0 & 0x3f000000)
 			ND_PRINT(" s%u", (i0 >> 24) & 0x3f);
 	}
-	return;
-
-trunc:
-	nd_print_trunc(ndo);
 }
 
 static void
@@ -152,9 +145,7 @@ rtp_print(netdissect_options *ndo, const u_char *hdr, u_int len)
 		ND_PRINT("udp/rtp, length %u < 8", len);
 		return;
 	}
-	ND_TCHECK_4(&((const u_int *)hdr)[0]);
 	i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
-	ND_TCHECK_4(&((const u_int *)hdr)[1]);
 	i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
 	dlen = len - 8;
 	ip += 2;
@@ -191,12 +182,10 @@ rtp_print(netdissect_options *ndo, const u_char *hdr, u_int len)
 		i0 & 0xffff,
 		i1);
 	if (ndo->ndo_vflag) {
-		ND_TCHECK_4(&((const u_int *)hdr)[2]);
 		ND_PRINT(" %u", GET_BE_U_4(&((const u_int *)hdr)[2]));
 		if (hasopt) {
 			u_int i2, optlen;
 			do {
-				ND_TCHECK_4(ip);
 				i2 = GET_BE_U_4(ip);
 				optlen = (i2 >> 16) & 0xff;
 				if (optlen == 0 || optlen > len) {
@@ -209,7 +198,6 @@ rtp_print(netdissect_options *ndo, const u_char *hdr, u_int len)
 		}
 		if (hasext) {
 			u_int i2, extlen;
-			ND_TCHECK_4(ip);
 			i2 = GET_BE_U_4(ip);
 			extlen = (i2 & 0xffff) + 1;
 			if (extlen > len) {
@@ -218,14 +206,9 @@ rtp_print(netdissect_options *ndo, const u_char *hdr, u_int len)
 			}
 			ip += extlen;
 		}
-		ND_TCHECK_4(ip);
 		if (contype == 0x1f) /*XXX H.261 */
 			ND_PRINT(" 0x%04x", GET_BE_U_4(ip) >> 16);
 	}
-	return;
-
-trunc:
-	nd_print_trunc(ndo);
 }
 
 static const u_char *
@@ -260,7 +243,7 @@ rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)
 		ND_TCHECK_SIZE(sr);
 		ts = (double)(GET_BE_U_4(sr->sr_ntp.upper)) +
 		    ((double)(GET_BE_U_4(sr->sr_ntp.lower)) /
-		     4294967296.0);
+		     FMAXINT);
 		ND_PRINT(" @%.2f %u %up %ub", ts, GET_BE_U_4(sr->sr_ts),
 			  GET_BE_U_4(sr->sr_np), GET_BE_U_4(sr->sr_nb));
 		rr = (const struct rtcp_rr *)(sr + 1);
@@ -459,7 +442,6 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
 
 		case PT_RPC:
 			rp = (const struct sunrpc_msg *)cp;
-			ND_TCHECK_4(rp->rm_direction);
 			direction = (enum sunrpc_msg_type) GET_BE_U_4(rp->rm_direction);
 			if (direction == SUNRPC_CALL)
 				sunrpc_print(ndo, (const u_char *)rp, length,
@@ -577,7 +559,6 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
 		 * TCP does, and we do so for UDP-over-IPv6.
 		 */
 		if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) {
-			ND_TCHECK_2(up->uh_sum);
 			udp_sum = GET_BE_U_2(up->uh_sum);
 			if (udp_sum == 0) {
 				ND_PRINT("[no cksum] ");
@@ -596,7 +577,6 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
 			/* for IPv6, UDP checksum is mandatory */
 			if (ND_TTEST_LEN(cp, length)) {
 				sum = udp6_cksum(ndo, ip6, up, length + sizeof(struct udphdr));
-				ND_TCHECK_2(up->uh_sum);
 				udp_sum = GET_BE_U_2(up->uh_sum);
 
 				if (sum != 0) {
@@ -682,7 +662,7 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
 			 IS_SRC_OR_DST_PORT(RADIUS_NEW_ACCOUNTING_PORT) ||
 			 IS_SRC_OR_DST_PORT(RADIUS_CISCO_COA_PORT) ||
 			 IS_SRC_OR_DST_PORT(RADIUS_COA_PORT) )
-			radius_print(ndo, (const u_char *)(up+1), length);
+			radius_print(ndo, cp, length);
 		else if (dport == HSRP_PORT)
 			hsrp_print(ndo, cp, length);
 		else if (IS_SRC_OR_DST_PORT(LWRES_PORT))
@@ -695,12 +675,12 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
 		else if (IS_SRC_OR_DST_PORT(MPLS_LSP_PING_PORT))
 			lspping_print(ndo, cp, length);
 		else if (sport == BCM_LI_PORT)
-			bcm_li_print(ndo, (const u_char *)(up+1), length);
+			bcm_li_print(ndo, cp, length);
 		else if (dport == BFD_CONTROL_PORT ||
 			 dport == BFD_MULTIHOP_PORT ||
 			 dport == BFD_LAG_PORT ||
 			 dport == BFD_ECHO_PORT )
-			bfd_print(ndo, (const u_char *)(up+1), length, dport);
+			bfd_print(ndo, cp, length, dport);
 		else if (IS_SRC_OR_DST_PORT(LMP_PORT))
 			lmp_print(ndo, cp, length);
 		else if (IS_SRC_OR_DST_PORT(VQP_PORT))