From owner-freebsd-net  Mon Oct  7 13:30: 0 2002
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Date: Mon, 7 Oct 2002 23:29:50 +0300 (EEST)
From: Andrey Simonenko <simon@simon.org.ua>
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To: freebsd-net@freebsd.org
Subject: Q about sbin/ip6fw/ip6fw.c:list()
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Hello,

Why is it not allowed to get more that 65536 ip6fw rules from the kernel
in the ip6fw.c:list() function?

Here is some lines from ip6fw.c:

	maxbytes = 65536 * sizeof *rules;
	while (bytes >= nalloc) {
		nalloc = nalloc * 2 + 200;
		bytes = nalloc;
		if ((rules = realloc(rules, bytes)) == NULL)
			err(EX_OSERR, "realloc");
		i = getsockopt(s, IPPROTO_IPV6, IPV6_FW_GET, rules, &bytes);
		if ((i < 0 && errno != EINVAL) || nalloc > maxbytes)
			err(EX_OSERR, "getsockopt(IPV6_FW_GET)");
	}


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