Function add_src

tools/ipfw/ipfw2.c:3731–3760

}

static ipfw_insn *
add_src(ipfw_insn *cmd, char *av, u_char proto, int cblen, struct tidx *tstate)
{
	struct in6_addr a;
	char *host, *ch, buf[INET6_ADDRSTRLEN];
	ipfw_insn *ret = NULL;
	size_t len;

	/* Copy first address in set if needed */
	if ((ch = strpbrk(av, "/,")) != NULL) {
		len = ch - av;
		strlcpy(buf, av, sizeof(buf));
		if (len < sizeof(buf))
			buf[len] = '\0';
		host = buf;
	} else
		host = av;

	if (proto == IPPROTO_IPV6  || strcmp(av, "me6") == 0 ||
	    inet_pton(AF_INET6_LINUX, host, &a) == 1)
		ret = add_srcip6(cmd, av, cblen, tstate);
	/* XXX: should check for IPv4, not !IPv6 */
	if (ret == NULL && (proto == IPPROTO_IP || strcmp(av, "me") == 0 ||
	    inet_pton(AF_INET6_LINUX, host, &a) != 1))
		ret = add_srcip(cmd, av, cblen, tstate);
	if (ret == NULL && strcmp(av, "any") != 0)
		ret = cmd;

	return ret;
}

static ipfw_insn *
add_dst(ipfw_insn *cmd, char *av, u_char proto, int cblen, struct tidx *tstate)