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	void			void
	mrt_stats()			mrt_stats()
	{			{
	struct mrtstat mrtstat;			struct mrtstat mrtstat;
	u_long mstaddr;			u_long mstaddr;

	mstaddr = nl[N_MRTSTAT].n_value;			mstaddr = nl[N_MRTSTAT].n_value;

	if (mstaddr == 0) {			if (fetch_stats("net.inet.ip.mrtstat", mstaddr, &mrtstat,
				sizeof(mrtstat), kread_counters) != 0) {
				if ((live && errno == ENOENT) \|\| (!live && mstaddr == 0))
	fprintf(stderr, "No IPv4 MROUTING kernel support.\n");			fprintf(stderr, "No IPv4 MROUTING kernel support.\n");
	return;			return;
	}			}

	if (fetch_stats("net.inet.ip.mrtstat", mstaddr, &mrtstat,
	sizeof(mrtstat), kread_counters) != 0)
	return;

	xo_emit("{T:IPv4 multicast forwarding}:\n");			xo_emit("{T:IPv4 multicast forwarding}:\n");

	#define p(f, m) if (mrtstat.f \|\| sflag <= 1) \			#define p(f, m) if (mrtstat.f \|\| sflag <= 1) \
	xo_emit(m, (uintmax_t)mrtstat.f, plural(mrtstat.f))			xo_emit(m, (uintmax_t)mrtstat.f, plural(mrtstat.f))
	#define p2(f, m) if (mrtstat.f \|\| sflag <= 1) \			#define p2(f, m) if (mrtstat.f \|\| sflag <= 1) \
	xo_emit(m, (uintmax_t)mrtstat.f, plurales(mrtstat.f))			xo_emit(m, (uintmax_t)mrtstat.f, plurales(mrtstat.f))

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