[unix-history] / usr / src / usr.bin / netstat / route.c

/*
 * Copyright (c) 1983, 1988 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)route.c	5.22 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/mbuf.h>

#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#define  KERNEL
#include <net/route.h>
#undef KERNEL
#include <netinet/in.h>

#include <netns/ns.h>

#include <netdb.h>
#include <sys/kinfo.h>

#include <stdio.h>
#include <string.h>

extern	int nflag, aflag, Aflag, af;
extern	char *routename(), *netname(), *ns_print(), *plural();
extern	char *malloc();
#define kget(p, d) \
	(kvm_read((off_t)(p), (char *)&(d), sizeof (d)))

/*
 * Definitions for showing gateway flags.
 */
struct bits {
	short	b_mask;
	char	b_val;
} bits[] = {
	{ RTF_UP,	'U' },
	{ RTF_GATEWAY,	'G' },
	{ RTF_HOST,	'H' },
	{ RTF_DYNAMIC,	'D' },
	{ RTF_MODIFIED,	'M' },
	{ RTF_CLONING,	'C' },
	{ RTF_XRESOLVE,	'X' },
	{ RTF_LLINFO,	'L' },
	{ RTF_REJECT,	'R' },
	{ RTF_STATIC,	'S' },
	{ 0 }
};

static union {
	struct	sockaddr u_sa;
	u_short	u_data[128];
} pt_u;

int	do_rtent = 0;
struct	rtentry rtentry;
struct	radix_node rnode;
struct	radix_mask rmask;

int	NewTree = 0;

/*
 * Print routing tables.
 */
routepr(rtree)
	off_t rtree;
{
	struct radix_node_head *rnh, head;
	int i;

	printf("Routing tables\n");

	if (Aflag == 0 && NewTree)
		ntreestuff();
	else {
		if (rtree == 0) {
			printf("rt_tables: symbol not in namelist\n");
			return;
		}

		kget(rtree, rt_tables);
		for (i = 0; i <= AF_MAX; i++) {
			if ((rnh = rt_tables[i]) == 0)
				continue;
			kget(rnh, head);
			if (i == AF_UNSPEC) {
				if (Aflag && af == 0) { 
					printf("Netmasks:\n");
					p_tree(head.rnh_treetop);
				}
			} else if (af == AF_UNSPEC || af == i) {
				pr_family(i);
				do_rtent = 1;
				pr_rthdr();
				p_tree(head.rnh_treetop);
			}
		}
	}
}

/*
 * Print address family header before a section of the routing table.
 */
pr_family(af)
	int af;
{
	char *afname;

	switch (af) {
	case AF_INET:
		afname = "Internet";
		break;
	case AF_NS:
		afname = "XNS";
		break;
	case AF_ISO:
		afname = "ISO";
		break;
	case AF_CCITT:
		afname = "X.25";
		break;
	default:
		afname = NULL;
		break;
	}
	if (afname)
		printf("\n%s:\n", afname);
	else
		printf("\nProtocol Family %d:\n", af);
}

/* column widths; each followed by one space */
#define	WID_DST		16	/* width of destination column */
#define	WID_GW		18	/* width of gateway column */

/*
 * Print header for routing table columns.
 */
pr_rthdr()
{

	if (Aflag)
		printf("%-8.8s ","Address");
	printf("%-*.*s %-*.*s %-6.6s  %6.6s%8.8s  %s\n",
		WID_DST, WID_DST, "Destination",
		WID_GW, WID_GW, "Gateway",
		"Flags", "Refs", "Use", "Interface");
}

struct sockaddr *
kgetsa(dst)
	register struct sockaddr *dst;
{

	kget(dst, pt_u.u_sa);
	if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
		kvm_read((off_t)dst, pt_u.u_data, pt_u.u_sa.sa_len);
	return (&pt_u.u_sa);
}

p_tree(rn)
	struct radix_node *rn;
{

again:
	kget(rn, rnode);
	if (rnode.rn_b < 0) {
		if (Aflag)
			printf("%-8.8x ", rn);
		if (rnode.rn_flags & RNF_ROOT) {
			if (Aflag)
				printf("(root node)%s",
				    rnode.rn_dupedkey ? " =>\n" : "\n");
		} else if (do_rtent) {
			kget(rn, rtentry);
			p_rtentry(&rtentry);
			if (Aflag)
				p_rtnode();
		} else {
			p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
			    0, 44);
			putchar('\n');
		}
		if (rn = rnode.rn_dupedkey)
			goto again;
	} else {
		if (Aflag && do_rtent) {
			printf("%-8.8x ", rn);
			p_rtnode();
		}
		rn = rnode.rn_r;
		p_tree(rnode.rn_l);
		p_tree(rn);
	}
}

char	nbuf[20];

p_rtnode()
{
	struct radix_mask *rm = rnode.rn_mklist;

	if (rnode.rn_b < 0) {
		if (rnode.rn_mask) {
			printf("\t  mask ");
			p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
				    0, -1);
		} else if (rm == 0)
			return;
	} else {
		sprintf(nbuf, "(%d)", rnode.rn_b);
		printf("%6.6s %8.8x : %8.8x", nbuf, rnode.rn_l, rnode.rn_r);
	}
	while (rm) {
		kget(rm, rmask);
		sprintf(nbuf, " %d refs, ", rmask.rm_refs);
		printf(" mk = %8.8x {(%d),%s",
			rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
		p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, -1);
		putchar('}');
		if (rm = rmask.rm_mklist)
			printf(" ->");
	}
	putchar('\n');
}

ntreestuff()
{
	int needed;
	char *buf, *next, *lim;
	register struct rt_msghdr *rtm;

	if ((needed = getkerninfo(KINFO_RT_DUMP, 0, 0, 0)) < 0)
		{ perror("route-getkerninfo-estimate"); exit(1);}
	if ((buf = malloc(needed)) == 0)
		{ printf("out of space\n"); exit(1);}
	if (getkerninfo(KINFO_RT_DUMP, buf, &needed, 0) < 0)
		{ perror("getkerninfo of routing table"); exit(1);}
	lim  = buf + needed;
	for (next = buf; next < lim; next += rtm->rtm_msglen) {
		rtm = (struct rt_msghdr *)next;
		np_rtentry(rtm);
	}
}

np_rtentry(rtm)
	register struct rt_msghdr *rtm;
{
	register struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
	static int masks_done, old_af, banner_printed;
	int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST;

#ifdef notdef
	/* for the moment, netmasks are skipped over */
	if (!banner_printed) {
		printf("Netmasks:\n");
		banner_printed = 1;
	}
	if (masks_done == 0) {
		if (rtm->rtm_addrs != RTA_DST ) {
			masks_done = 1;
			af = sa->sa_family;
		}
	} else
#endif
		af = sa->sa_family;
	if (af != old_af) {
		pr_family(af);
		old_af = af;
	}
	if (rtm->rtm_addrs == RTA_DST)
		p_sockaddr(sa, 0, 36);
	else {
		p_sockaddr(sa, rtm->rtm_flags, 16);
		if (sa->sa_len == 0)
			sa->sa_len = sizeof(long);
		sa = (struct sockaddr *)(sa->sa_len + (char *)sa);
		p_sockaddr(sa, 0, 18);
	}
	p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
	putchar('\n');
}

p_sockaddr(sa, flags, width)
	struct sockaddr *sa;
	int flags, width;
{
	char format[20], workbuf[128], *cplim;
	register char *cp = workbuf;

	switch(sa->sa_family) {
	case AF_INET:
	    {
		register struct sockaddr_in *sin = (struct sockaddr_in *)sa;

		cp = (sin->sin_addr.s_addr == 0) ? "default" :
		      ((flags & RTF_HOST) ?
			routename(sin->sin_addr) : netname(sin->sin_addr, 0L));
		break;
	    }

	case AF_NS:
		cp = ns_print((struct sockaddr_ns *)sa);
		break;

	case AF_LINK:
	    {
		register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
		extern char *link_ntoa();

		if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
		    sdl->sdl_slen == 0)
			(void) sprintf(workbuf, "link#%d", sdl->sdl_index);
		else switch (sdl->sdl_type) {
		case IFT_ETHER:
		    {
			register int i;
			register u_char *lla = (u_char *)sdl->sdl_data +
			    sdl->sdl_nlen;

			cplim = "";
			for (i = 0; i < sdl->sdl_alen; i++, lla++) {
				cp += sprintf(cp, "%s%x", cplim, *lla);
				cplim = ":";
			}
			cp = workbuf;
			break;
		    }
		default:
			cp = link_ntoa(sdl);
			break;
		}
		break;
	    }

	default:
	    {
		register u_short *s = ((u_short *)sa->sa_data), *slim;

		slim = (u_short *) sa + ((sa->sa_len + sizeof(u_short) - 1) /
		    sizeof(u_short));
		cplim = cp + sizeof(workbuf) - 6;
		cp += sprintf(cp, "(%d)", sa->sa_family);
		while (s < slim && cp < cplim)
			cp += sprintf(cp, " %x", *s++);
		cp = workbuf;
	    }
	}
	if (width < 0 )
		printf("%s ", cp);
	else {
		if (nflag)
			printf("%-*s ", width, cp);
		else
			printf("%-*.*s ", width, width, cp);
	}
}

p_flags(f, format)
	register int f;
	char *format;
{
	char name[33], *flags;
	register struct bits *p = bits;

	for (flags = name; p->b_mask; p++)
		if (p->b_mask & f)
			*flags++ = p->b_val;
	*flags = '\0';
	printf(format, name);
}

p_rtentry(rt)
register struct rtentry *rt;
{
	register struct sockaddr *sa;
	static struct ifnet ifnet, *lastif;
	static char name[16];

	p_sockaddr(kgetsa(rt_key(rt)), rt->rt_flags, WID_DST);
	p_sockaddr(kgetsa(rt->rt_gateway), 0, WID_GW);
	p_flags(rt->rt_flags, "%-6.6s ");
	printf("%6d %8d ", rt->rt_refcnt, rt->rt_use);
	if (rt->rt_ifp) {
		if (rt->rt_ifp != lastif) {
			kget(rt->rt_ifp, ifnet);
			kvm_read((off_t)ifnet.if_name, name, 16);
			lastif = rt->rt_ifp;
		}
		printf(" %.15s%d%s", name, ifnet.if_unit,
			rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
	}
	putchar('\n');
}

char *
routename(in)
	struct in_addr in;
{
	register char *cp;
	static char line[MAXHOSTNAMELEN + 1];
	struct hostent *hp;
	static char domain[MAXHOSTNAMELEN + 1];
	static int first = 1;
	char *index();

	if (first) {
		first = 0;
		if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
		    (cp = index(domain, '.')))
			(void) strcpy(domain, cp + 1);
		else
			domain[0] = 0;
	}
	cp = 0;
	if (!nflag) {
		hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
			AF_INET);
		if (hp) {
			if ((cp = index(hp->h_name, '.')) &&
			    !strcmp(cp + 1, domain))
				*cp = 0;
			cp = hp->h_name;
		}
	}
	if (cp)
		strncpy(line, cp, sizeof(line) - 1);
	else {
#define C(x)	((x) & 0xff)
		in.s_addr = ntohl(in.s_addr);
		sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
			C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
	}
	return (line);
}

/*
 * Return the name of the network whose address is given.
 * The address is assumed to be that of a net or subnet, not a host.
 */
char *
netname(in, mask)
	struct in_addr in;
	u_long mask;
{
	char *cp = 0;
	static char line[MAXHOSTNAMELEN + 1];
	struct netent *np = 0;
	u_long net;
	register i;
	int subnetshift;

	i = ntohl(in.s_addr);
	if (!nflag && i) {
		if (mask == 0) {
			if (IN_CLASSA(i)) {
				mask = IN_CLASSA_NET;
				subnetshift = 8;
			} else if (IN_CLASSB(i)) {
				mask = IN_CLASSB_NET;
				subnetshift = 8;
			} else {
				mask = IN_CLASSC_NET;
				subnetshift = 4;
			}
			/*
			 * If there are more bits than the standard mask
			 * would suggest, subnets must be in use.
			 * Guess at the subnet mask, assuming reasonable
			 * width subnet fields.
			 */
			while (i &~ mask)
				mask = (long)mask >> subnetshift;
		}
		net = i & mask;
		while ((mask & 1) == 0)
			mask >>= 1, net >>= 1;
		np = getnetbyaddr(net, AF_INET);
		if (np)
			cp = np->n_name;
	}	
	if (cp)
		strncpy(line, cp, sizeof(line) - 1);
	else if ((i & 0xffffff) == 0)
		sprintf(line, "%u", C(i >> 24));
	else if ((i & 0xffff) == 0)
		sprintf(line, "%u.%u", C(i >> 24) , C(i >> 16));
	else if ((i & 0xff) == 0)
		sprintf(line, "%u.%u.%u", C(i >> 24), C(i >> 16), C(i >> 8));
	else
		sprintf(line, "%u.%u.%u.%u", C(i >> 24),
			C(i >> 16), C(i >> 8), C(i));
	return (line);
}

/*
 * Print routing statistics
 */
rt_stats(off)
	off_t off;
{
	struct rtstat rtstat;

	if (off == 0) {
		printf("rtstat: symbol not in namelist\n");
		return;
	}
	kvm_read(off, (char *)&rtstat, sizeof (rtstat));
	printf("routing:\n");
	printf("\t%u bad routing redirect%s\n",
		rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
	printf("\t%u dynamically created route%s\n",
		rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
	printf("\t%u new gateway%s due to redirects\n",
		rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
	printf("\t%u destination%s found unreachable\n",
		rtstat.rts_unreach, plural(rtstat.rts_unreach));
	printf("\t%u use%s of a wildcard route\n",
		rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
}
short ns_nullh[] = {0,0,0};
short ns_bh[] = {-1,-1,-1};

char *
ns_print(sns)
struct sockaddr_ns *sns;
{
	struct ns_addr work;
	union { union ns_net net_e; u_long long_e; } net;
	u_short port;
	static char mybuf[50], cport[10], chost[25];
	char *host = "";
	register char *p; register u_char *q;

	work = sns->sns_addr;
	port = ntohs(work.x_port);
	work.x_port = 0;
	net.net_e  = work.x_net;
	if (ns_nullhost(work) && net.long_e == 0) {
		if (port ) {
			sprintf(mybuf, "*.%xH", port);
			upHex(mybuf);
		} else
			sprintf(mybuf, "*.*");
		return (mybuf);
	}

	if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
		host = "any";
	} else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
		host = "*";
	} else {
		q = work.x_host.c_host;
		sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
			q[0], q[1], q[2], q[3], q[4], q[5]);
		for (p = chost; *p == '0' && p < chost + 12; p++);
		host = p;
	}
	if (port)
		sprintf(cport, ".%xH", htons(port));
	else
		*cport = 0;

	sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
	upHex(mybuf);
	return(mybuf);
}

char *
ns_phost(sns)
struct sockaddr_ns *sns;
{
	struct sockaddr_ns work;
	static union ns_net ns_zeronet;
	char *p;
	
	work = *sns;
	work.sns_addr.x_port = 0;
	work.sns_addr.x_net = ns_zeronet;

	p = ns_print(&work);
	if (strncmp("0H.", p, 3) == 0) p += 3;
	return(p);
}
upHex(p0)
char *p0;
{
	register char *p = p0;
	for (; *p; p++) switch (*p) {

	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
		*p += ('A' - 'a');
	}
}
Commit	Line	Data
5ff67f98	1	/*
b36fc510	2	* Copyright (c) 1983, 1988 Regents of the University of California.
ee3f90a5 MK	3	* All rights reserved.
ee3f90a5 MK	4	*
42841feb	5	* %sccs.include.redist.c%
5ff67f98 DF	6	*/
5ff67f98 DF	7
3537c4ea	8	#ifndef lint
4e64fa9b	9	static char sccsid[] = "@(#)route.c 5.22 (Berkeley) %G%";
b36fc510	10	#endif /* not lint */
3537c4ea	11
6c5bed6c	12	#include <sys/param.h>
3537c4ea SL	13	#include <sys/socket.h>
3537c4ea SL	14	#include <sys/mbuf.h>
44906619	15
3537c4ea	16	#include <net/if.h>
a6dd7faa MK	17	#include <net/if_dl.h>
a6dd7faa MK	18	#include <net/if_types.h>
4b68c469	19	#define KERNEL
3537c4ea	20	#include <net/route.h>
4b68c469	21	#undef KERNEL
44906619 SL	22	#include <netinet/in.h>
44906619 SL	23
f1fbb01b KS	24	#include <netns/ns.h>
f1fbb01b KS	25
3537c4ea	26	#include <netdb.h>
4d9e18da	27	#include <sys/kinfo.h>
3537c4ea	28
42841feb KS	29	#include <stdio.h>
	30	#include <string.h>
	31
b8442d18	32	extern int nflag, aflag, Aflag, af;
f7c99b06 MK	33	extern char routename(), netname(), ns_print(), plural();
f7c99b06 MK	34	extern char *malloc();
4b68c469	35	#define kget(p, d) \
c34ecf77	36	(kvm_read((off_t)(p), (char *)&(d), sizeof (d)))
3537c4ea SL	37
	38	/*
	39	* Definitions for showing gateway flags.
	40	*/
	41	struct bits {
	42	short b_mask;
	43	char b_val;
	44	} bits[] = {
	45	{ RTF_UP, 'U' },
	46	{ RTF_GATEWAY, 'G' },
	47	{ RTF_HOST, 'H' },
6c5bed6c	48	{ RTF_DYNAMIC, 'D' },
3273bd86	49	{ RTF_MODIFIED, 'M' },
56492e5a	50	{ RTF_CLONING, 'C' },
b8442d18	51	{ RTF_XRESOLVE, 'X' },
56492e5a	52	{ RTF_LLINFO, 'L' },
b8442d18	53	{ RTF_REJECT, 'R' },
4e64fa9b	54	{ RTF_STATIC, 'S' },
3537c4ea SL	55	{ 0 }
	56	};
	57
a6dd7faa MK	58	static union {
	59	struct sockaddr u_sa;
	60	u_short u_data[128];
	61	} pt_u;
	62
	63	int do_rtent = 0;
	64	struct rtentry rtentry;
	65	struct radix_node rnode;
	66	struct radix_mask rmask;
	67
	68	int NewTree = 0;
	69
3537c4ea SL	70	/*
	71	* Print routing tables.
	72	*/
a6dd7faa MK	73	routepr(rtree)
a6dd7faa MK	74	off_t rtree;
3537c4ea	75	{
a6dd7faa	76	struct radix_node_head *rnh, head;
4e64fa9b	77	int i;
3537c4ea	78
4b68c469	79	printf("Routing tables\n");
a6dd7faa MK	80
	81	if (Aflag == 0 && NewTree)
	82	ntreestuff();
	83	else {
	84	if (rtree == 0) {
4e64fa9b	85	printf("rt_tables: symbol not in namelist\n");
a6dd7faa MK	86	return;
	87	}
	88
4e64fa9b KS	89	kget(rtree, rt_tables);
	90	for (i = 0; i <= AF_MAX; i++) {
	91	if ((rnh = rt_tables[i]) == 0)
	92	continue;
a6dd7faa	93	kget(rnh, head);
4e64fa9b KS	94	if (i == AF_UNSPEC) {
4e64fa9b KS	95	if (Aflag && af == 0) {
a6dd7faa MK	96	printf("Netmasks:\n");
	97	p_tree(head.rnh_treetop);
	98	}
4e64fa9b KS	99	} else if (af == AF_UNSPEC \|\| af == i) {
4e64fa9b KS	100	pr_family(i);
a6dd7faa MK	101	do_rtent = 1;
	102	pr_rthdr();
	103	p_tree(head.rnh_treetop);
	104	}
3537c4ea SL	105	}
3537c4ea SL	106	}
4b68c469 MK	107	}
4b68c469 MK	108
a6dd7faa MK	109	/*
	110	* Print address family header before a section of the routing table.
	111	*/
	112	pr_family(af)
	113	int af;
4b68c469	114	{
a6dd7faa	115	char *afname;
56492e5a	116
a6dd7faa MK	117	switch (af) {
	118	case AF_INET:
	119	afname = "Internet";
	120	break;
	121	case AF_NS:
	122	afname = "XNS";
	123	break;
	124	case AF_ISO:
	125	afname = "ISO";
	126	break;
4e64fa9b KS	127	case AF_CCITT:
	128	afname = "X.25";
	129	break;
a6dd7faa MK	130	default:
	131	afname = NULL;
	132	break;
4b68c469	133	}
a6dd7faa MK	134	if (afname)
	135	printf("\n%s:\n", afname);
	136	else
	137	printf("\nProtocol Family %d:\n", af);
	138	}
	139
	140	/* column widths; each followed by one space */
	141	#define WID_DST 16 /* width of destination column */
	142	#define WID_GW 18 /* width of gateway column */
	143
	144	/*
	145	* Print header for routing table columns.
	146	*/
	147	pr_rthdr()
	148	{
	149
	150	if (Aflag)
	151	printf("%-8.8s ","Address");
	152	printf("%-.s %-.s %-6.6s %6.6s%8.8s %s\n",
	153	WID_DST, WID_DST, "Destination",
	154	WID_GW, WID_GW, "Gateway",
	155	"Flags", "Refs", "Use", "Interface");
4b68c469 MK	156	}
4b68c469 MK	157
4d9e18da KS	158	struct sockaddr *
4d9e18da KS	159	kgetsa(dst)
a6dd7faa	160	register struct sockaddr *dst;
4d9e18da	161	{
a6dd7faa	162
4d9e18da	163	kget(dst, pt_u.u_sa);
a6dd7faa	164	if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa))
c34ecf77	165	kvm_read((off_t)dst, pt_u.u_data, pt_u.u_sa.sa_len);
4d9e18da KS	166	return (&pt_u.u_sa);
	167	}
	168
b8442d18	169	p_tree(rn)
a6dd7faa	170	struct radix_node *rn;
4b68c469	171	{
4b68c469 MK	172
	173	again:
	174	kget(rn, rnode);
	175	if (rnode.rn_b < 0) {
b8442d18 KS	176	if (Aflag)
b8442d18 KS	177	printf("%-8.8x ", rn);
a6dd7faa MK	178	if (rnode.rn_flags & RNF_ROOT) {
	179	if (Aflag)
	180	printf("(root node)%s",
b8442d18	181	rnode.rn_dupedkey ? " =>\n" : "\n");
a6dd7faa	182	} else if (do_rtent) {
4b68c469 MK	183	kget(rn, rtentry);
4b68c469 MK	184	p_rtentry(&rtentry);
b8442d18 KS	185	if (Aflag)
b8442d18 KS	186	p_rtnode();
4b68c469	187	} else {
4d9e18da	188	p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key),
a6dd7faa	189	0, 44);
4b68c469 MK	190	putchar('\n');
	191	}
	192	if (rn = rnode.rn_dupedkey)
	193	goto again;
	194	} else {
b8442d18 KS	195	if (Aflag && do_rtent) {
	196	printf("%-8.8x ", rn);
	197	p_rtnode();
	198	}
	199	rn = rnode.rn_r;
	200	p_tree(rnode.rn_l);
	201	p_tree(rn);
	202	}
	203	}
a6dd7faa MK	204
a6dd7faa MK	205	char nbuf[20];
b8442d18 KS	206
	207	p_rtnode()
	208	{
b8442d18	209	struct radix_mask *rm = rnode.rn_mklist;
a6dd7faa	210
b8442d18 KS	211	if (rnode.rn_b < 0) {
	212	if (rnode.rn_mask) {
	213	printf("\t mask ");
	214	p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask),
	215	0, -1);
	216	} else if (rm == 0)
	217	return;
	218	} else {
	219	sprintf(nbuf, "(%d)", rnode.rn_b);
	220	printf("%6.6s %8.8x : %8.8x", nbuf, rnode.rn_l, rnode.rn_r);
4b68c469	221	}
b8442d18 KS	222	while (rm) {
	223	kget(rm, rmask);
	224	sprintf(nbuf, " %d refs, ", rmask.rm_refs);
	225	printf(" mk = %8.8x {(%d),%s",
	226	rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " ");
	227	p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, -1);
	228	putchar('}');
	229	if (rm = rmask.rm_mklist)
	230	printf(" ->");
	231	}
	232	putchar('\n');
4b68c469 MK	233	}
4b68c469 MK	234
4d9e18da	235	ntreestuff()
4b68c469	236	{
4d9e18da KS	237	int needed;
	238	char buf, next, *lim;
	239	register struct rt_msghdr *rtm;
	240
	241	if ((needed = getkerninfo(KINFO_RT_DUMP, 0, 0, 0)) < 0)
	242	{ perror("route-getkerninfo-estimate"); exit(1);}
	243	if ((buf = malloc(needed)) == 0)
56492e5a	244	{ printf("out of space\n"); exit(1);}
4d9e18da	245	if (getkerninfo(KINFO_RT_DUMP, buf, &needed, 0) < 0)
a6dd7faa	246	{ perror("getkerninfo of routing table"); exit(1);}
4d9e18da KS	247	lim = buf + needed;
	248	for (next = buf; next < lim; next += rtm->rtm_msglen) {
	249	rtm = (struct rt_msghdr *)next;
	250	np_rtentry(rtm);
4b68c469	251	}
4b68c469 MK	252	}
4b68c469 MK	253
4d9e18da	254	np_rtentry(rtm)
a6dd7faa	255	register struct rt_msghdr *rtm;
4b68c469	256	{
4d9e18da KS	257	register struct sockaddr sa = (struct sockaddr )(rtm + 1);
	258	static int masks_done, old_af, banner_printed;
	259	int af = 0, interesting = RTF_UP \| RTF_GATEWAY \| RTF_HOST;
4b68c469	260
4d9e18da KS	261	#ifdef notdef
	262	/* for the moment, netmasks are skipped over */
	263	if (!banner_printed) {
	264	printf("Netmasks:\n");
	265	banner_printed = 1;
	266	}
	267	if (masks_done == 0) {
	268	if (rtm->rtm_addrs != RTA_DST ) {
	269	masks_done = 1;
	270	af = sa->sa_family;
	271	}
	272	} else
	273	#endif
	274	af = sa->sa_family;
	275	if (af != old_af) {
a6dd7faa	276	pr_family(af);
4d9e18da KS	277	old_af = af;
	278	}
	279	if (rtm->rtm_addrs == RTA_DST)
56492e5a	280	p_sockaddr(sa, 0, 36);
4d9e18da	281	else {
56492e5a	282	p_sockaddr(sa, rtm->rtm_flags, 16);
4d9e18da KS	283	if (sa->sa_len == 0)
	284	sa->sa_len = sizeof(long);
	285	sa = (struct sockaddr )(sa->sa_len + (char )sa);
56492e5a	286	p_sockaddr(sa, 0, 18);
4d9e18da KS	287	}
	288	p_flags(rtm->rtm_flags & interesting, "%-6.6s ");
	289	putchar('\n');
	290	}
	291
56492e5a	292	p_sockaddr(sa, flags, width)
a6dd7faa MK	293	struct sockaddr *sa;
a6dd7faa MK	294	int flags, width;
4d9e18da	295	{
a6dd7faa MK	296	char format[20], workbuf[128], *cplim;
a6dd7faa MK	297	register char *cp = workbuf;
4d9e18da KS	298
4d9e18da KS	299	switch(sa->sa_family) {
4b68c469	300	case AF_INET:
4d9e18da KS	301	{
	302	register struct sockaddr_in sin = (struct sockaddr_in )sa;
	303
	304	cp = (sin->sin_addr.s_addr == 0) ? "default" :
	305	((flags & RTF_HOST) ?
	306	routename(sin->sin_addr) : netname(sin->sin_addr, 0L));
4b68c469	307	break;
a6dd7faa	308	}
4d9e18da	309
4b68c469	310	case AF_NS:
4d9e18da	311	cp = ns_print((struct sockaddr_ns *)sa);
4b68c469	312	break;
4d9e18da	313
a6dd7faa MK	314	case AF_LINK:
	315	{
	316	register struct sockaddr_dl sdl = (struct sockaddr_dl )sa;
	317	extern char *link_ntoa();
	318
	319	if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
	320	sdl->sdl_slen == 0)
	321	(void) sprintf(workbuf, "link#%d", sdl->sdl_index);
	322	else switch (sdl->sdl_type) {
	323	case IFT_ETHER:
	324	{
	325	register int i;
	326	register u_char lla = (u_char )sdl->sdl_data +
	327	sdl->sdl_nlen;
	328
	329	cplim = "";
	330	for (i = 0; i < sdl->sdl_alen; i++, lla++) {
	331	cp += sprintf(cp, "%s%x", cplim, *lla);
	332	cplim = ":";
	333	}
	334	cp = workbuf;
	335	break;
	336	}
	337	default:
	338	cp = link_ntoa(sdl);
	339	break;
	340	}
	341	break;
	342	}
	343
4b68c469	344	default:
4d9e18da	345	{
b8442d18	346	register u_short s = ((u_short )sa->sa_data), *slim;
4d9e18da	347
b8442d18 KS	348	slim = (u_short *) sa + ((sa->sa_len + sizeof(u_short) - 1) /
b8442d18 KS	349	sizeof(u_short));
4d9e18da KS	350	cplim = cp + sizeof(workbuf) - 6;
	351	cp += sprintf(cp, "(%d)", sa->sa_family);
	352	while (s < slim && cp < cplim)
b8442d18	353	cp += sprintf(cp, " %x", *s++);
4d9e18da KS	354	cp = workbuf;
4d9e18da KS	355	}
4b68c469	356	}
b8442d18 KS	357	if (width < 0 )
	358	printf("%s ", cp);
	359	else {
	360	if (nflag)
	361	printf("%-*s ", width, cp);
	362	else
	363	printf("%-.s ", width, width, cp);
	364	}
4d9e18da KS	365	}
	366
	367	p_flags(f, format)
a6dd7faa MK	368	register int f;
a6dd7faa MK	369	char *format;
4d9e18da KS	370	{
	371	char name[33], *flags;
	372	register struct bits *p = bits;
a6dd7faa	373
4d9e18da KS	374	for (flags = name; p->b_mask; p++)
4d9e18da KS	375	if (p->b_mask & f)
4b68c469 MK	376	*flags++ = p->b_val;
4b68c469 MK	377	*flags = '\0';
4d9e18da KS	378	printf(format, name);
	379	}
	380
	381	p_rtentry(rt)
	382	register struct rtentry *rt;
	383	{
4d9e18da	384	register struct sockaddr *sa;
a6dd7faa MK	385	static struct ifnet ifnet, *lastif;
a6dd7faa MK	386	static char name[16];
4d9e18da	387
a6dd7faa MK	388	p_sockaddr(kgetsa(rt_key(rt)), rt->rt_flags, WID_DST);
a6dd7faa MK	389	p_sockaddr(kgetsa(rt->rt_gateway), 0, WID_GW);
4d9e18da KS	390	p_flags(rt->rt_flags, "%-6.6s ");
4d9e18da KS	391	printf("%6d %8d ", rt->rt_refcnt, rt->rt_use);
a6dd7faa MK	392	if (rt->rt_ifp) {
	393	if (rt->rt_ifp != lastif) {
	394	kget(rt->rt_ifp, ifnet);
	395	kvm_read((off_t)ifnet.if_name, name, 16);
	396	lastif = rt->rt_ifp;
	397	}
	398	printf(" %.15s%d%s", name, ifnet.if_unit,
	399	rt->rt_nodes[0].rn_dupedkey ? " =>" : "");
4b68c469	400	}
a6dd7faa	401	putchar('\n');
3537c4ea SL	402	}
	403
	404	char *
	405	routename(in)
	406	struct in_addr in;
	407	{
6b9930b0	408	register char *cp;
cb646d4b	409	static char line[MAXHOSTNAMELEN + 1];
40f48772	410	struct hostent *hp;
6c5bed6c MK	411	static char domain[MAXHOSTNAMELEN + 1];
	412	static int first = 1;
	413	char *index();
3537c4ea	414
6c5bed6c MK	415	if (first) {
	416	first = 0;
	417	if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
	418	(cp = index(domain, '.')))
	419	(void) strcpy(domain, cp + 1);
	420	else
	421	domain[0] = 0;
	422	}
6b9930b0	423	cp = 0;
3537c4ea	424	if (!nflag) {
f7c99b06	425	hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
cab3a575	426	AF_INET);
6c5bed6c MK	427	if (hp) {
	428	if ((cp = index(hp->h_name, '.')) &&
	429	!strcmp(cp + 1, domain))
	430	*cp = 0;
cab3a575	431	cp = hp->h_name;
6c5bed6c	432	}
3537c4ea SL	433	}
3537c4ea SL	434	if (cp)
cb646d4b	435	strncpy(line, cp, sizeof(line) - 1);
3537c4ea	436	else {
cab3a575 MK	437	#define C(x) ((x) & 0xff)
	438	in.s_addr = ntohl(in.s_addr);
	439	sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
	440	C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
	441	}
	442	return (line);
	443	}
	444
	445	/*
	446	* Return the name of the network whose address is given.
	447	* The address is assumed to be that of a net or subnet, not a host.
	448	*/
	449	char *
	450	netname(in, mask)
	451	struct in_addr in;
	452	u_long mask;
	453	{
	454	char *cp = 0;
cb646d4b	455	static char line[MAXHOSTNAMELEN + 1];
cab3a575 MK	456	struct netent *np = 0;
	457	u_long net;
	458	register i;
6c5bed6c	459	int subnetshift;
cab3a575	460
a83ade01 MK	461	i = ntohl(in.s_addr);
a83ade01 MK	462	if (!nflag && i) {
6c5bed6c MK	463	if (mask == 0) {
	464	if (IN_CLASSA(i)) {
	465	mask = IN_CLASSA_NET;
	466	subnetshift = 8;
	467	} else if (IN_CLASSB(i)) {
	468	mask = IN_CLASSB_NET;
	469	subnetshift = 8;
	470	} else {
	471	mask = IN_CLASSC_NET;
	472	subnetshift = 4;
	473	}
cab3a575	474	/*
6c5bed6c MK	475	* If there are more bits than the standard mask
	476	* would suggest, subnets must be in use.
	477	* Guess at the subnet mask, assuming reasonable
	478	* width subnet fields.
cab3a575	479	*/
a83ade01	480	while (i &~ mask)
6c5bed6c	481	mask = (long)mask >> subnetshift;
cab3a575	482	}
a83ade01	483	net = i & mask;
6c5bed6c MK	484	while ((mask & 1) == 0)
	485	mask >>= 1, net >>= 1;
	486	np = getnetbyaddr(net, AF_INET);
cab3a575 MK	487	if (np)
cab3a575 MK	488	cp = np->n_name;
f7c99b06	489	}
cab3a575	490	if (cp)
cb646d4b	491	strncpy(line, cp, sizeof(line) - 1);
a83ade01 MK	492	else if ((i & 0xffffff) == 0)
	493	sprintf(line, "%u", C(i >> 24));
	494	else if ((i & 0xffff) == 0)
	495	sprintf(line, "%u.%u", C(i >> 24) , C(i >> 16));
	496	else if ((i & 0xff) == 0)
	497	sprintf(line, "%u.%u.%u", C(i >> 24), C(i >> 16), C(i >> 8));
cab3a575	498	else
a83ade01 MK	499	sprintf(line, "%u.%u.%u.%u", C(i >> 24),
a83ade01 MK	500	C(i >> 16), C(i >> 8), C(i));
3537c4ea SL	501	return (line);
3537c4ea SL	502	}
6c5bed6c	503
bbd2d21e SL	504	/*
	505	* Print routing statistics
	506	*/
	507	rt_stats(off)
	508	off_t off;
	509	{
	510	struct rtstat rtstat;
	511
	512	if (off == 0) {
	513	printf("rtstat: symbol not in namelist\n");
	514	return;
	515	}
c34ecf77	516	kvm_read(off, (char *)&rtstat, sizeof (rtstat));
bbd2d21e	517	printf("routing:\n");
bd91d3f9	518	printf("\t%u bad routing redirect%s\n",
bbd2d21e	519	rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
bd91d3f9	520	printf("\t%u dynamically created route%s\n",
bbd2d21e	521	rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
bd91d3f9	522	printf("\t%u new gateway%s due to redirects\n",
bbd2d21e	523	rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
bd91d3f9	524	printf("\t%u destination%s found unreachable\n",
bbd2d21e	525	rtstat.rts_unreach, plural(rtstat.rts_unreach));
bd91d3f9	526	printf("\t%u use%s of a wildcard route\n",
bbd2d21e SL	527	rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
bbd2d21e SL	528	}
2ff355d6	529	short ns_nullh[] = {0,0,0};
f1fbb01b KS	530	short ns_bh[] = {-1,-1,-1};
	531
	532	char *
	533	ns_print(sns)
	534	struct sockaddr_ns *sns;
	535	{
2ff355d6 MK	536	struct ns_addr work;
	537	union { union ns_net net_e; u_long long_e; } net;
	538	u_short port;
	539	static char mybuf[50], cport[10], chost[25];
	540	char *host = "";
f7c99b06	541	register char p; register u_char q;
f1fbb01b	542
2ff355d6 MK	543	work = sns->sns_addr;
	544	port = ntohs(work.x_port);
	545	work.x_port = 0;
	546	net.net_e = work.x_net;
	547	if (ns_nullhost(work) && net.long_e == 0) {
	548	if (port ) {
	549	sprintf(mybuf, "*.%xH", port);
	550	upHex(mybuf);
	551	} else
	552	sprintf(mybuf, ".");
	553	return (mybuf);
	554	}
f1fbb01b	555
56492e5a	556	if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
2ff355d6 MK	557	host = "any";
	558	} else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
	559	host = "*";
	560	} else {
	561	q = work.x_host.c_host;
	562	sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
	563	q[0], q[1], q[2], q[3], q[4], q[5]);
	564	for (p = chost; *p == '0' && p < chost + 12; p++);
	565	host = p;
f1fbb01b	566	}
2ff355d6 MK	567	if (port)
	568	sprintf(cport, ".%xH", htons(port));
	569	else
	570	*cport = 0;
	571
	572	sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
	573	upHex(mybuf);
f1fbb01b KS	574	return(mybuf);
f1fbb01b KS	575	}
2ff355d6	576
f1fbb01b KS	577	char *
	578	ns_phost(sns)
	579	struct sockaddr_ns *sns;
	580	{
2ff355d6 MK	581	struct sockaddr_ns work;
	582	static union ns_net ns_zeronet;
	583	char *p;
	584
	585	work = *sns;
	586	work.sns_addr.x_port = 0;
	587	work.sns_addr.x_net = ns_zeronet;
	588
	589	p = ns_print(&work);
	590	if (strncmp("0H.", p, 3) == 0) p += 3;
	591	return(p);
	592	}
	593	upHex(p0)
	594	char *p0;
	595	{
	596	register char *p = p0;
	597	for (; p; p++) switch (p) {
	598
	599	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
	600	*p += ('A' - 'a');
	601	}
f1fbb01b	602	}