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

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)route.c	5.8 (Berkeley) 86/12/15";
#endif

#include <stdio.h>
#include <strings.h>

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

#include <net/if.h>
#include <net/route.h>
#include <netinet/in.h>

#include <netns/ns.h>

#include <netdb.h>

extern	int kmem;
extern	int nflag;
extern	char *routename(), *netname(), *ns_print(), *plural();
extern	char *malloc();

/*
 * 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' },
	{ 0 }
};

/*
 * Print routing tables.
 */
routepr(hostaddr, netaddr, hashsizeaddr)
	off_t hostaddr, netaddr, hashsizeaddr;
{
	struct mbuf mb;
	register struct rtentry *rt;
	register struct mbuf *m;
	register struct bits *p;
	char name[16], *flags;
	struct mbuf **routehash;
	struct ifnet ifnet;
	int hashsize;
	int i, doinghost = 1;

	if (hostaddr == 0) {
		printf("rthost: symbol not in namelist\n");
		return;
	}
	if (netaddr == 0) {
		printf("rtnet: symbol not in namelist\n");
		return;
	}
	if (hashsizeaddr == 0) {
		printf("rthashsize: symbol not in namelist\n");
		return;
	}
	klseek(kmem, hashsizeaddr, 0);
	read(kmem, (char *)&hashsize, sizeof (hashsize));
	routehash = (struct mbuf **)malloc( hashsize*sizeof (struct mbuf *) );
	klseek(kmem, hostaddr, 0);
	read(kmem, (char *)routehash, hashsize*sizeof (struct mbuf *));
	printf("Routing tables\n");
	printf("%-20.20s %-20.20s %-8.8s %-6.6s %-10.10s %s\n",
		"Destination", "Gateway",
		"Flags", "Refcnt", "Use", "Interface");
again:
	for (i = 0; i < hashsize; i++) {
		if (routehash[i] == 0)
			continue;
		m = routehash[i];
		while (m) {
			struct sockaddr_in *sin;

			klseek(kmem, (off_t)m, 0);
			read(kmem, (char *)&mb, sizeof (mb));
			rt = mtod(&mb, struct rtentry *);
			if ((unsigned)rt < (unsigned)&mb ||
			    (unsigned)rt >= (unsigned)(&mb + 1)) {
				printf("???\n");
				return;
			}

			switch(rt->rt_dst.sa_family) {
			case AF_INET:
				sin = (struct sockaddr_in *)&rt->rt_dst;
				printf("%-20.20s ",
				    (sin->sin_addr.s_addr == 0) ? "default" :
				    (rt->rt_flags & RTF_HOST) ?
				    routename(sin->sin_addr) :
					netname(sin->sin_addr, 0L));
				sin = (struct sockaddr_in *)&rt->rt_gateway;
				printf("%-20.20s ", routename(sin->sin_addr));
				break;
			case AF_NS:
				printf("%-20s ",
				    ns_print((struct sockaddr_ns *)&rt->rt_dst));
				printf("%-20s ",
				    ns_print((struct sockaddr_ns *)&rt->rt_gateway));
				break;
			default:
				{
				u_short *s = (u_short *)rt->rt_dst.sa_data;
				printf("(%d)%x %x %x %x %x %x %x ",
				    rt->rt_dst.sa_family,
				    s[0], s[1], s[2], s[3], s[4], s[5], s[6]);
				s = (u_short *)rt->rt_gateway.sa_data;
				printf("(%d)%x %x %x %x %x %x %x ",
				    rt->rt_gateway.sa_family,
				    s[0], s[1], s[2], s[3], s[4], s[5], s[6]);
				}
			}
			for (flags = name, p = bits; p->b_mask; p++)
				if (p->b_mask & rt->rt_flags)
					*flags++ = p->b_val;
			*flags = '\0';
			printf("%-8.8s %-6d %-10d ", name,
				rt->rt_refcnt, rt->rt_use);
			if (rt->rt_ifp == 0) {
				putchar('\n');
				m = mb.m_next;
				continue;
			}
			klseek(kmem, (off_t)rt->rt_ifp, 0);
			read(kmem, (char *)&ifnet, sizeof (ifnet));
			klseek(kmem, (off_t)ifnet.if_name, 0);
			read(kmem, name, 16);
			printf("%s%d\n", name, ifnet.if_unit);
			m = mb.m_next;
		}
	}
	if (doinghost) {
		klseek(kmem, netaddr, 0);
		read(kmem, (char *)routehash, hashsize*sizeof (struct mbuf *));
		doinghost = 0;
		goto again;
	}
	free((char *)routehash);
}

char *
routename(in)
	struct in_addr in;
{
	register char *cp;
	static char line[50];
	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)
		strcpy(line, cp);
	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[50];
	struct netent *np = 0;
	u_long net;
	register i;
	int subnetshift;

	in.s_addr = ntohl(in.s_addr);
	if (!nflag && in.s_addr) {
		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 (in.s_addr &~ mask)
				mask = (long)mask >> subnetshift;
		}
		net = in.s_addr & mask;
		while ((mask & 1) == 0)
			mask >>= 1, net >>= 1;
		np = getnetbyaddr(net, AF_INET);
		if (np)
			cp = np->n_name;
	}	
	if (cp)
		strcpy(line, cp);
	else if ((in.s_addr & 0xffffff) == 0)
		sprintf(line, "%u", C(in.s_addr >> 24));
	else if ((in.s_addr & 0xffff) == 0)
		sprintf(line, "%u.%u", C(in.s_addr >> 24) , C(in.s_addr >> 16));
	else if ((in.s_addr & 0xff) == 0)
		sprintf(line, "%u.%u.%u", C(in.s_addr >> 24),
			C(in.s_addr >> 16), C(in.s_addr >> 8));
	else
		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);
}

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

	if (off == 0) {
		printf("rtstat: symbol not in namelist\n");
		return;
	}
	klseek(kmem, off, 0);
	read(kmem, (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 DF	1	/*
	2	* Copyright (c) 1983 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*/
	6
3537c4ea	7	#ifndef lint
bd91d3f9	8	static char sccsid[] = "@(#)route.c 5.8 (Berkeley) 86/12/15";
f1fbb01b	9	#endif
3537c4ea	10
f7c99b06 MK	11	#include <stdio.h>
	12	#include <strings.h>
	13
6c5bed6c	14	#include <sys/param.h>
3537c4ea SL	15	#include <sys/socket.h>
3537c4ea SL	16	#include <sys/mbuf.h>
44906619	17
3537c4ea	18	#include <net/if.h>
3537c4ea	19	#include <net/route.h>
44906619 SL	20	#include <netinet/in.h>
44906619 SL	21
f1fbb01b KS	22	#include <netns/ns.h>
f1fbb01b KS	23
3537c4ea SL	24	#include <netdb.h>
	25
	26	extern int kmem;
	27	extern int nflag;
f7c99b06 MK	28	extern char routename(), netname(), ns_print(), plural();
f7c99b06 MK	29	extern char *malloc();
3537c4ea SL	30
	31	/*
	32	* Definitions for showing gateway flags.
	33	*/
	34	struct bits {
	35	short b_mask;
	36	char b_val;
	37	} bits[] = {
	38	{ RTF_UP, 'U' },
	39	{ RTF_GATEWAY, 'G' },
	40	{ RTF_HOST, 'H' },
6c5bed6c	41	{ RTF_DYNAMIC, 'D' },
3537c4ea SL	42	{ 0 }
	43	};
	44
	45	/*
	46	* Print routing tables.
	47	*/
f508555e MK	48	routepr(hostaddr, netaddr, hashsizeaddr)
f508555e MK	49	off_t hostaddr, netaddr, hashsizeaddr;
3537c4ea SL	50	{
	51	struct mbuf mb;
	52	register struct rtentry *rt;
	53	register struct mbuf *m;
	54	register struct bits *p;
3537c4ea	55	char name[16], *flags;
f508555e	56	struct mbuf **routehash;
3537c4ea	57	struct ifnet ifnet;
f508555e MK	58	int hashsize;
f508555e MK	59	int i, doinghost = 1;
3537c4ea SL	60
	61	if (hostaddr == 0) {
	62	printf("rthost: symbol not in namelist\n");
	63	return;
	64	}
	65	if (netaddr == 0) {
	66	printf("rtnet: symbol not in namelist\n");
	67	return;
	68	}
f508555e MK	69	if (hashsizeaddr == 0) {
	70	printf("rthashsize: symbol not in namelist\n");
	71	return;
	72	}
	73	klseek(kmem, hashsizeaddr, 0);
f7c99b06	74	read(kmem, (char *)&hashsize, sizeof (hashsize));
f508555e	75	routehash = (struct mbuf *)malloc( hashsizesizeof (struct mbuf *) );
3537c4ea	76	klseek(kmem, hostaddr, 0);
f7c99b06	77	read(kmem, (char )routehash, hashsizesizeof (struct mbuf *));
3537c4ea	78	printf("Routing tables\n");
2ff355d6	79	printf("%-20.20s %-20.20s %-8.8s %-6.6s %-10.10s %s\n",
3537c4ea SL	80	"Destination", "Gateway",
	81	"Flags", "Refcnt", "Use", "Interface");
	82	again:
f508555e	83	for (i = 0; i < hashsize; i++) {
3537c4ea SL	84	if (routehash[i] == 0)
	85	continue;
	86	m = routehash[i];
	87	while (m) {
	88	struct sockaddr_in *sin;
	89
f7c99b06 MK	90	klseek(kmem, (off_t)m, 0);
f7c99b06 MK	91	read(kmem, (char *)&mb, sizeof (mb));
3537c4ea	92	rt = mtod(&mb, struct rtentry *);
2ff355d6 MK	93	if ((unsigned)rt < (unsigned)&mb \|\|
	94	(unsigned)rt >= (unsigned)(&mb + 1)) {
	95	printf("???\n");
	96	return;
	97	}
	98
f1fbb01b	99	switch(rt->rt_dst.sa_family) {
2ff355d6 MK	100	case AF_INET:
	101	sin = (struct sockaddr_in *)&rt->rt_dst;
	102	printf("%-20.20s ",
	103	(sin->sin_addr.s_addr == 0) ? "default" :
	104	(rt->rt_flags & RTF_HOST) ?
	105	routename(sin->sin_addr) :
f7c99b06	106	netname(sin->sin_addr, 0L));
2ff355d6 MK	107	sin = (struct sockaddr_in *)&rt->rt_gateway;
	108	printf("%-20.20s ", routename(sin->sin_addr));
	109	break;
	110	case AF_NS:
	111	printf("%-20s ",
	112	ns_print((struct sockaddr_ns *)&rt->rt_dst));
	113	printf("%-20s ",
	114	ns_print((struct sockaddr_ns *)&rt->rt_gateway));
	115	break;
	116	default:
	117	{
	118	u_short s = (u_short )rt->rt_dst.sa_data;
	119	printf("(%d)%x %x %x %x %x %x %x ",
	120	rt->rt_dst.sa_family,
	121	s[0], s[1], s[2], s[3], s[4], s[5], s[6]);
	122	s = (u_short *)rt->rt_gateway.sa_data;
	123	printf("(%d)%x %x %x %x %x %x %x ",
	124	rt->rt_gateway.sa_family,
	125	s[0], s[1], s[2], s[3], s[4], s[5], s[6]);
	126	}
f1fbb01b	127	}
3537c4ea SL	128	for (flags = name, p = bits; p->b_mask; p++)
	129	if (p->b_mask & rt->rt_flags)
	130	*flags++ = p->b_val;
	131	*flags = '\0';
	132	printf("%-8.8s %-6d %-10d ", name,
	133	rt->rt_refcnt, rt->rt_use);
	134	if (rt->rt_ifp == 0) {
	135	putchar('\n');
	136	m = mb.m_next;
	137	continue;
	138	}
f7c99b06 MK	139	klseek(kmem, (off_t)rt->rt_ifp, 0);
	140	read(kmem, (char *)&ifnet, sizeof (ifnet));
	141	klseek(kmem, (off_t)ifnet.if_name, 0);
3537c4ea SL	142	read(kmem, name, 16);
	143	printf("%s%d\n", name, ifnet.if_unit);
	144	m = mb.m_next;
	145	}
	146	}
	147	if (doinghost) {
	148	klseek(kmem, netaddr, 0);
f7c99b06	149	read(kmem, (char )routehash, hashsizesizeof (struct mbuf *));
3537c4ea SL	150	doinghost = 0;
	151	goto again;
	152	}
f7c99b06	153	free((char *)routehash);
3537c4ea SL	154	}
	155
	156	char *
	157	routename(in)
	158	struct in_addr in;
	159	{
6b9930b0	160	register char *cp;
3537c4ea	161	static char line[50];
40f48772	162	struct hostent *hp;
6c5bed6c MK	163	static char domain[MAXHOSTNAMELEN + 1];
	164	static int first = 1;
	165	char *index();
3537c4ea	166
6c5bed6c MK	167	if (first) {
	168	first = 0;
	169	if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
	170	(cp = index(domain, '.')))
	171	(void) strcpy(domain, cp + 1);
	172	else
	173	domain[0] = 0;
	174	}
6b9930b0	175	cp = 0;
3537c4ea	176	if (!nflag) {
f7c99b06	177	hp = gethostbyaddr((char *)&in, sizeof (struct in_addr),
cab3a575	178	AF_INET);
6c5bed6c MK	179	if (hp) {
	180	if ((cp = index(hp->h_name, '.')) &&
	181	!strcmp(cp + 1, domain))
	182	*cp = 0;
cab3a575	183	cp = hp->h_name;
6c5bed6c	184	}
3537c4ea SL	185	}
	186	if (cp)
	187	strcpy(line, cp);
	188	else {
cab3a575 MK	189	#define C(x) ((x) & 0xff)
	190	in.s_addr = ntohl(in.s_addr);
	191	sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
	192	C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
	193	}
	194	return (line);
	195	}
	196
	197	/*
	198	* Return the name of the network whose address is given.
	199	* The address is assumed to be that of a net or subnet, not a host.
	200	*/
	201	char *
	202	netname(in, mask)
	203	struct in_addr in;
	204	u_long mask;
	205	{
	206	char *cp = 0;
	207	static char line[50];
	208	struct netent *np = 0;
	209	u_long net;
	210	register i;
6c5bed6c	211	int subnetshift;
cab3a575 MK	212
	213	in.s_addr = ntohl(in.s_addr);
	214	if (!nflag && in.s_addr) {
6c5bed6c MK	215	if (mask == 0) {
	216	if (IN_CLASSA(i)) {
	217	mask = IN_CLASSA_NET;
	218	subnetshift = 8;
	219	} else if (IN_CLASSB(i)) {
	220	mask = IN_CLASSB_NET;
	221	subnetshift = 8;
	222	} else {
	223	mask = IN_CLASSC_NET;
	224	subnetshift = 4;
	225	}
cab3a575	226	/*
6c5bed6c MK	227	* If there are more bits than the standard mask
	228	* would suggest, subnets must be in use.
	229	* Guess at the subnet mask, assuming reasonable
	230	* width subnet fields.
cab3a575	231	*/
6c5bed6c MK	232	while (in.s_addr &~ mask)
6c5bed6c MK	233	mask = (long)mask >> subnetshift;
cab3a575	234	}
6c5bed6c MK	235	net = in.s_addr & mask;
	236	while ((mask & 1) == 0)
	237	mask >>= 1, net >>= 1;
	238	np = getnetbyaddr(net, AF_INET);
cab3a575 MK	239	if (np)
cab3a575 MK	240	cp = np->n_name;
f7c99b06	241	}
cab3a575 MK	242	if (cp)
	243	strcpy(line, cp);
	244	else if ((in.s_addr & 0xffffff) == 0)
	245	sprintf(line, "%u", C(in.s_addr >> 24));
	246	else if ((in.s_addr & 0xffff) == 0)
	247	sprintf(line, "%u.%u", C(in.s_addr >> 24) , C(in.s_addr >> 16));
	248	else if ((in.s_addr & 0xff) == 0)
	249	sprintf(line, "%u.%u.%u", C(in.s_addr >> 24),
	250	C(in.s_addr >> 16), C(in.s_addr >> 8));
	251	else
	252	sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24),
	253	C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr));
3537c4ea SL	254	return (line);
3537c4ea SL	255	}
6c5bed6c	256
bbd2d21e SL	257	/*
	258	* Print routing statistics
	259	*/
	260	rt_stats(off)
	261	off_t off;
	262	{
	263	struct rtstat rtstat;
	264
	265	if (off == 0) {
	266	printf("rtstat: symbol not in namelist\n");
	267	return;
	268	}
	269	klseek(kmem, off, 0);
	270	read(kmem, (char *)&rtstat, sizeof (rtstat));
	271	printf("routing:\n");
bd91d3f9	272	printf("\t%u bad routing redirect%s\n",
bbd2d21e	273	rtstat.rts_badredirect, plural(rtstat.rts_badredirect));
bd91d3f9	274	printf("\t%u dynamically created route%s\n",
bbd2d21e	275	rtstat.rts_dynamic, plural(rtstat.rts_dynamic));
bd91d3f9	276	printf("\t%u new gateway%s due to redirects\n",
bbd2d21e	277	rtstat.rts_newgateway, plural(rtstat.rts_newgateway));
bd91d3f9	278	printf("\t%u destination%s found unreachable\n",
bbd2d21e	279	rtstat.rts_unreach, plural(rtstat.rts_unreach));
bd91d3f9	280	printf("\t%u use%s of a wildcard route\n",
bbd2d21e SL	281	rtstat.rts_wildcard, plural(rtstat.rts_wildcard));
bbd2d21e SL	282	}
2ff355d6	283	short ns_nullh[] = {0,0,0};
f1fbb01b KS	284	short ns_bh[] = {-1,-1,-1};
	285
	286	char *
	287	ns_print(sns)
	288	struct sockaddr_ns *sns;
	289	{
2ff355d6 MK	290	struct ns_addr work;
	291	union { union ns_net net_e; u_long long_e; } net;
	292	u_short port;
	293	static char mybuf[50], cport[10], chost[25];
	294	char *host = "";
f7c99b06	295	register char p; register u_char q;
f1fbb01b	296
2ff355d6 MK	297	work = sns->sns_addr;
	298	port = ntohs(work.x_port);
	299	work.x_port = 0;
	300	net.net_e = work.x_net;
	301	if (ns_nullhost(work) && net.long_e == 0) {
	302	if (port ) {
	303	sprintf(mybuf, "*.%xH", port);
	304	upHex(mybuf);
	305	} else
	306	sprintf(mybuf, ".");
	307	return (mybuf);
	308	}
f1fbb01b	309
2ff355d6 MK	310	if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) {
	311	host = "any";
	312	} else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) {
	313	host = "*";
	314	} else {
	315	q = work.x_host.c_host;
	316	sprintf(chost, "%02x%02x%02x%02x%02x%02xH",
	317	q[0], q[1], q[2], q[3], q[4], q[5]);
	318	for (p = chost; *p == '0' && p < chost + 12; p++);
	319	host = p;
f1fbb01b	320	}
2ff355d6 MK	321	if (port)
	322	sprintf(cport, ".%xH", htons(port));
	323	else
	324	*cport = 0;
	325
	326	sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport);
	327	upHex(mybuf);
f1fbb01b KS	328	return(mybuf);
f1fbb01b KS	329	}
2ff355d6	330
f1fbb01b KS	331	char *
	332	ns_phost(sns)
	333	struct sockaddr_ns *sns;
	334	{
2ff355d6 MK	335	struct sockaddr_ns work;
	336	static union ns_net ns_zeronet;
	337	char *p;
	338
	339	work = *sns;
	340	work.sns_addr.x_port = 0;
	341	work.sns_addr.x_net = ns_zeronet;
	342
	343	p = ns_print(&work);
	344	if (strncmp("0H.", p, 3) == 0) p += 3;
	345	return(p);
	346	}
	347	upHex(p0)
	348	char *p0;
	349	{
	350	register char *p = p0;
	351	for (; p; p++) switch (p) {
	352
	353	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
	354	*p += ('A' - 'a');
	355	}
f1fbb01b	356	}