X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/c666659228b605c1cbf789ad4a89d12dd047a64b..d29f3dab95d8b28a62848fcb043b8ba40348bc3d:/print-tcp.c

diff --git a/print-tcp.c b/print-tcp.c
index b63bc4eb..27620d66 100644
--- a/print-tcp.c
+++ b/print-tcp.c
@@ -142,8 +142,8 @@ static int tcp_cksum(register const struct ip *ip,
 		     register const struct tcphdr *tp,
 		     register u_int len)
 {
-	return (nextproto4_cksum(ip, (const u_int8_t *)tp, len,
-	    IPPROTO_TCP));
+	return nextproto4_cksum(ip, (const u_int8_t *)tp, len, len,
+				IPPROTO_TCP);
 }
 
 void
@@ -258,16 +258,16 @@ tcp_print(register const u_char *bp, register u_int length,
                         if (sport > dport)
                                 rev = 1;
                         else if (sport == dport) {
-                                if (memcmp(src, dst, sizeof ip6->ip6_dst) > 0)
+                                if (UNALIGNED_MEMCMP(src, dst, sizeof ip6->ip6_dst) > 0)
                                         rev = 1;
                         }
                         if (rev) {
-                                memcpy(&tha.src, dst, sizeof ip6->ip6_dst);
-                                memcpy(&tha.dst, src, sizeof ip6->ip6_src);
+                                UNALIGNED_MEMCPY(&tha.src, dst, sizeof ip6->ip6_dst);
+                                UNALIGNED_MEMCPY(&tha.dst, src, sizeof ip6->ip6_src);
                                 tha.port = dport << 16 | sport;
                         } else {
-                                memcpy(&tha.dst, dst, sizeof ip6->ip6_dst);
-                                memcpy(&tha.src, src, sizeof ip6->ip6_src);
+                                UNALIGNED_MEMCPY(&tha.dst, dst, sizeof ip6->ip6_dst);
+                                UNALIGNED_MEMCPY(&tha.src, src, sizeof ip6->ip6_src);
                                 tha.port = sport << 16 | dport;
                         }
 
@@ -305,31 +305,25 @@ tcp_print(register const u_char *bp, register u_int length,
 #endif /*INET6*/
                         register struct tcp_seq_hash *th;
                         struct tcp_seq_hash *tcp_seq_hash;
-                        const void *src, *dst;
+                        const struct in_addr *src, *dst;
                         struct tha tha;
 
                         tcp_seq_hash = tcp_seq_hash4;
-			/*
-			 * We use "void *" to keep the compiler from
-			 * assuming the structures are aligned and
-			 * generating non-unaligned-safe code for
-			 * the copies.
-			 */
-                        src = (const void *)&ip->ip_src;
-                        dst = (const void *)&ip->ip_dst;
+                        src = &ip->ip_src;
+                        dst = &ip->ip_dst;
                         if (sport > dport)
                                 rev = 1;
                         else if (sport == dport) {
-                                if (memcmp(src, dst, sizeof ip->ip_dst) > 0)
+                                if (UNALIGNED_MEMCMP(src, dst, sizeof ip->ip_dst) > 0)
                                         rev = 1;
                         }
                         if (rev) {
-                                memcpy(&tha.src, dst, sizeof ip->ip_dst);
-                                memcpy(&tha.dst, src, sizeof ip->ip_src);
+                                UNALIGNED_MEMCPY(&tha.src, dst, sizeof ip->ip_dst);
+                                UNALIGNED_MEMCPY(&tha.dst, src, sizeof ip->ip_src);
                                 tha.port = dport << 16 | sport;
                         } else {
-                                memcpy(&tha.dst, dst, sizeof ip->ip_dst);
-                                memcpy(&tha.src, src, sizeof ip->ip_src);
+                                UNALIGNED_MEMCPY(&tha.dst, dst, sizeof ip->ip_dst);
+                                UNALIGNED_MEMCPY(&tha.src, src, sizeof ip->ip_src);
                                 tha.port = sport << 16 | dport;
                         }
 
@@ -392,7 +386,8 @@ tcp_print(register const u_char *bp, register u_int length,
 #ifdef INET6
                 else if (IP_V(ip) == 6 && ip6->ip6_plen) {
                         if (TTEST2(tp->th_sport, length)) {
-                                sum = nextproto6_cksum(ip6, (const u_int8_t *)tp, length, IPPROTO_TCP);
+                                sum = nextproto6_cksum(ip6, (const u_int8_t *)tp,
+							length, length, IPPROTO_TCP);
                                 tcp_sum = EXTRACT_16BITS(&tp->th_sum);
 
                                 (void)printf(", cksum 0x%04x", tcp_sum);
@@ -668,7 +663,7 @@ tcp_print(register const u_char *bp, register u_int length,
         if (packettype) {
                 switch (packettype) {
                 case PT_ZMTP1:
-                        zmtp1_print(bp, length);
+                        zmtp1_print(gndo, bp, length);
                         break;
                 }
                 return;
@@ -688,7 +683,7 @@ tcp_print(register const u_char *bp, register u_int length,
 		smb_tcp_print(bp, length);
 #endif
         else if (sport == BEEP_PORT || dport == BEEP_PORT)
-                beep_print(bp, length);
+                beep_print(gndo, bp, length);
         else if (sport == OPENFLOW_PORT || dport == OPENFLOW_PORT)
                 openflow_print(bp, length);
         else if (length > 2 &&
@@ -700,7 +695,7 @@ tcp_print(register const u_char *bp, register u_int length,
                  */
                 ns_print(bp + 2, length - 2, 0);
         } else if (sport == MSDP_PORT || dport == MSDP_PORT) {
-                msdp_print(bp, length);
+                msdp_print(gndo, bp, length);
         } else if (sport == RPKI_RTR_PORT || dport == RPKI_RTR_PORT) {
                 rpki_rtr_print(bp, length);
         }