add tracefiles for infinite loop testing

[tcpdump] / print-udp.c

diff --git a/print-udp.c b/print-udp.c
index dafc2b226b9a0e94b00a9ef6987cb0bbfe772fed..78a63c2c46d8c226b0c739cdf0fbb5c7558b0456 100644 (file)
--- a/print-udp.c
+++ b/print-udp.c
@@ -20,8 +20,8 @@
  */
 
 #ifndef lint
-static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.122 2003-10-27 10:13:44 hannes Exp $ (LBL)";
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.124.2.5 2003-11-19 00:19:25 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -285,7 +285,7 @@ rtcp_print(const u_char *hdr, const u_char *ep)
 
 static int udp_cksum(register const struct ip *ip,
                     register const struct udphdr *up,
-                    register int len)
+                    register u_int len)
 {
        union phu {
                struct phdr {
@@ -300,7 +300,7 @@ static int udp_cksum(register const struct ip *ip,
        register const u_int16_t *sp;
 
        /* pseudo-header.. */
-       phu.ph.len = htons(len);
+       phu.ph.len = htons((u_int16_t)len);
        phu.ph.mbz = 0;
        phu.ph.proto = IPPROTO_UDP;
        memcpy(&phu.ph.src, &ip->ip_src.s_addr, sizeof(u_int32_t));
@@ -316,9 +316,9 @@ static int udp_cksum(register const struct ip *ip,
 
 #ifdef INET6
 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
-       int len)
+       u_int len)
 {
-       int i, tlen;
+       size_t i;
        register const u_int16_t *sp;
        u_int32_t sum;
        union {
@@ -332,14 +332,11 @@ static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
                u_int16_t pa[20];
        } phu;
 
-       tlen = EXTRACT_16BITS(&ip6->ip6_plen) + sizeof(struct ip6_hdr) -
-           ((const char *)up - (const char*)ip6);
-
        /* pseudo-header */
        memset(&phu, 0, sizeof(phu));
        phu.ph.ph_src = ip6->ip6_src;
        phu.ph.ph_dst = ip6->ip6_dst;
-       phu.ph.ph_len = htonl(tlen);
+       phu.ph.ph_len = htonl(len);
        phu.ph.ph_nxt = IPPROTO_UDP;
 
        sum = 0;
@@ -348,10 +345,10 @@ static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
 
        sp = (const u_int16_t *)up;
 
-       for (i = 0; i < (tlen & ~1); i += 2)
+       for (i = 0; i < (len & ~1); i += 2)
                sum += *sp++;
 
-       if (tlen & 1)
+       if (len & 1)
                sum += htons((*(const u_int8_t *)sp) << 8);
 
        while (sum > 0xffff)
@@ -362,46 +359,6 @@ static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
 }
 #endif
 
-
-/* XXX probably should use getservbyname() and cache answers */
-#define TFTP_PORT 69           /*XXX*/
-#define KERBEROS_PORT 88       /*XXX*/
-#define SUNRPC_PORT 111                /*XXX*/
-#define SNMP_PORT 161          /*XXX*/
-#define NTP_PORT 123           /*XXX*/
-#define SNMPTRAP_PORT 162      /*XXX*/
-#define ISAKMP_PORT 500                /*XXX*/
-#define TIMED_PORT 525         /*XXX*/
-#define RIP_PORT 520           /*XXX*/
-#define LDP_PORT 646
-#define AODV_PORT 654          /*XXX*/
-#define KERBEROS_SEC_PORT 750  /*XXX*/
-#define L2TP_PORT 1701         /*XXX*/
-#define ISAKMP_PORT_USER1 7500 /*XXX - nonstandard*/
-#define ISAKMP_PORT_USER2 8500 /*XXX - nonstandard*/
-#define RX_PORT_LOW 7000       /*XXX*/
-#define RX_PORT_HIGH 7009      /*XXX*/
-#define NETBIOS_NS_PORT   137
-#define NETBIOS_DGRAM_PORT   138
-#define CISCO_AUTORP_PORT 496  /*XXX*/
-#define RADIUS_PORT 1645
-#define RADIUS_NEW_PORT 1812
-#define RADIUS_ACCOUNTING_PORT 1646
-#define RADIUS_NEW_ACCOUNTING_PORT 1813
-#define HSRP_PORT 1985         /*XXX*/
-#define LWRES_PORT             921
-#define ZEPHYR_SRV_PORT                2103
-#define ZEPHYR_CLT_PORT                2104
-#define MPLS_LSP_PING_PORT      3503 /* draft-ietf-mpls-lsp-ping-02.txt */
-#define BFD_CONTROL_PORT        3784 /* draft-katz-ward-bfd-v4v6-1hop-00.txt */
-#define BFD_ECHO_PORT           3785 /* draft-katz-ward-bfd-v4v6-1hop-00.txt */
-
-#ifdef INET6
-#define RIPNG_PORT 521         /*XXX*/
-#define DHCP6_SERV_PORT 546    /*XXX*/
-#define DHCP6_CLI_PORT 547     /*XXX*/
-#endif
-
 static void
 udpipaddr_print(const struct ip *ip, int sport, int dport)
 {
@@ -628,7 +585,7 @@ udp_print(register const u_char *bp, u_int length,
                int sum = up->uh_sum;
                /* for IPv6, UDP checksum is mandatory */
                if (TTEST2(cp[0], length)) {
-                       sum = udp6_cksum(ip6, up, length);
+                       sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));
                        if (sum != 0)
                                (void)printf("[bad udp cksum %x!] ", sum);
                        else
@@ -639,8 +596,10 @@ udp_print(register const u_char *bp, u_int length,
 
        if (!qflag) {
 #define ISPORT(p) (dport == (p) || sport == (p))
-               if (ISPORT(NAMESERVER_PORT) || ISPORT(MULTICASTDNS_PORT))
-                       ns_print((const u_char *)(up + 1), length);
+               if (ISPORT(NAMESERVER_PORT))
+                       ns_print((const u_char *)(up + 1), length, 0);
+               else if (ISPORT(MULTICASTDNS_PORT))
+                       ns_print((const u_char *)(up + 1), length, 1);
                else if (ISPORT(TIMED_PORT))
                        timed_print((const u_char *)(up + 1));
                else if (ISPORT(TFTP_PORT))
@@ -692,8 +651,7 @@ udp_print(register const u_char *bp, u_int length,
                else if (ISPORT(RIPNG_PORT))
                        ripng_print((const u_char *)(up + 1), length);
                else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) {
-                       dhcp6_print((const u_char *)(up + 1), length,
-                               sport, dport);
+                       dhcp6_print((const u_char *)(up + 1), length);
                }
 #endif /*INET6*/
                /*