1 #include "ipf.h"
2 
3 /*
4  * This is meant to work without the IPv6 header files being present or
5  * the inet_ntop() library.
6  */
printpacket6(ip)7 void printpacket6(ip)
8 struct ip *ip;
9 {
10 	u_char *buf, p;
11 	u_short plen, *addrs;
12 	tcphdr_t *tcp;
13 	u_32_t flow;
14 
15 	buf = (u_char *)ip;
16 	tcp = (tcphdr_t *)(buf + 40);
17 	p = buf[6];
18 	flow = ntohl(*(u_32_t *)buf);
19 	flow &= 0xfffff;
20 	plen = ntohs(*((u_short *)buf +2));
21 	addrs = (u_short *)buf + 4;
22 
23 	printf("ip6/%d %d %#x %d", buf[0] & 0xf, plen, flow, p);
24 	printf(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
25 		ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]),
26 		ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]),
27 		ntohs(addrs[6]), ntohs(addrs[7]));
28 	if (plen >= 4)
29 		if (p == IPPROTO_TCP || p == IPPROTO_UDP)
30 			(void)printf(",%d", ntohs(tcp->th_sport));
31 	printf(" >");
32 	addrs += 8;
33 	printf(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
34 		ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]),
35 		ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]),
36 		ntohs(addrs[6]), ntohs(addrs[7]));
37 	if (plen >= 4)
38 		if (p == IPPROTO_TCP || p == IPPROTO_UDP)
39 			(void)printf(",%d", ntohs(tcp->th_dport));
40 	putchar('\n');
41 }
42