Шрифт:
11 #ifdef IPV6
12 if (pr->sasend->sa_family == AF_INET6 && verbose == 0) {
13 struct icmp6_filter myfilt;
14 ICMP6_FILTER_SETBLOCKALL(&myfilt);
15 ICMP6_FILTER_SETPASS(ICMP6_TIME_EXCEEDED, &myfilt);
16 ICMP6_FILTER_SETPASS(ICMP6_DST_UNREACH, &myfilt);
17 setsockopt(recvfd, IPPROTO_IPV6, ICMP6_FILTER,
18 &myfilt, sizeof(myfilt));
19 }
20 #endif
21 sendfd = Socket(pr->sasend->sa_family, SOCK_DGRAM, 0);
22 pr->sabind->sa_family = pr->sasend->sa_family;
23 sport = (getpid & 0xffff) | 0x8000; /* UDP-порт отправителя # */
24 sock_set_port(pr->sabind, pr->salen, htons(sport));
25 Bind(sendfd, pr->sabind, pr->salen);
26 sig_alrm(SIGALRM);
27 seq = 0;
28 done = 0;
29 for (ttl = 1; ttl <= max_ttl && done == 0; ttl++) {
30 Setsockopt(sendfd, pr->ttllevel, pr->ttloptname, &ttl, sizeof(int));
31 bzero(pr->salast, pr->salen);
32 printf("%2d ", ttl);
33 fflush(stdout);
34 for (probe = 0; probe < nprobes; probe++) {
35 rec = (struct rec*)sendbuf;
36 rec->rec_seq = ++seq;
37 rec->rec_ttl = ttl;
38 Gettimeofday(&rec->rec_tv, NULL);
39 sock_set_port(pr->sasend, pr->salen, htons(dport + seq));
40 Sendto(sendfd, sendbuf, datalen, 0, pr->sasend, pr->salen);
41 if ((code = (*pr->recv)(seq, &tvrecv)) == -3)
42 printf(" *"); /* тайм-аут, ответа нет */
43 else {
44 char str[NI_MAXHOST];
45 if (sock_cmp_addr(pr->sarecv, pr->salast, pr->salen) != 0) {
46 if (getnameinfo(pr->sarecv, pr->salen, str, sizeof(str),
47 NULL, 0, 0) == 0)
48 printf(" %s (%s)", str,
49 Sock_ntop_host(pr->sarecv, pr->salen));
50 else
51 printf(" %s", Sock_ntop_host(pr->sarecv, pr->salen));
52 memcpy(pr->salast, pr->sarecv, pr->salen);
53 }
54 tv_sub(&tvrecv, &rec->rec_tv);
55 rtt = tvrecv.tv_sec * 1000.0 + tvrecv.tv_usec / 1000.0;
56 printf(" %.3f ms", rtt);
57 if (code == -1) /* порт получателя недоступен */
58 done++;
59 else if (code >= 0)
60 printf(" (ICMP %s)", (*pr->icmpcode)(code));
61 }
62 fflush(stdout);
63 }