Function plist

tools/ndp/ndp.c:1211–1329

}

static void
plist()
{
	int mib[] = { CTL_NET, PF_INET6, IPPROTO_ICMPV6, ICMPV6CTL_ND6_PRLIST };
	char *buf;
	struct in6_prefix *p, *ep, *n;
	struct sockaddr_in6 *advrtr;
	size_t l;
	struct timeval now;
	const int niflags = NI_NUMERICHOST;
	int ninflags = nflag ? NI_NUMERICHOST : 0;
	char namebuf[NI_MAXHOST];

	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0) {
		err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
		/*NOTREACHED*/
	}
	buf = malloc(l);
	if (!buf) {
		err(1, "malloc");
		/*NOTREACHED*/
	}
	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {
		err(1, "sysctl(ICMPV6CTL_ND6_PRLIST)");
		/*NOTREACHED*/
	}

	ep = (struct in6_prefix *)(buf + l);
	for (p = (struct in6_prefix *)buf; p < ep; p = n) {
		advrtr = (struct sockaddr_in6 *)(p + 1);
		n = (struct in6_prefix *)&advrtr[p->advrtrs];
#ifndef FSTACK
		if (getnameinfo((struct sockaddr *)&p->prefix,
		    p->prefix.sin6_len, namebuf, sizeof(namebuf),
		    NULL, 0, niflags) != 0)
#else
		inet_ntop(AF_INET6_LINUX, &p->prefix.sin6_addr, namebuf, sizeof(namebuf));
#endif
			strlcpy(namebuf, "?", sizeof(namebuf));
		printf("%s/%d if=%s\n", namebuf, p->prefixlen,
		    if_indextoname(p->if_index, ifix_buf));

		gettimeofday(&now, 0);
		/*
		 * meaning of fields, especially flags, is very different
		 * by origin.  notify the difference to the users.
		 */
		printf("flags=%s%s%s%s%s",
		    p->raflags.onlink ? "L" : "",
		    p->raflags.autonomous ? "A" : "",
		    (p->flags & NDPRF_ONLINK) != 0 ? "O" : "",
		    (p->flags & NDPRF_DETACHED) != 0 ? "D" : "",
#ifdef NDPRF_HOME
		    (p->flags & NDPRF_HOME) != 0 ? "H" : ""
#else
		    ""
#endif
		    );