[unix-history] / usr / src / usr.sbin / trsp / trsp.c

This manual page documents a tool used for debugging failures in
the Xerox NS Sequenced packet protocol layer.  It is adapted from
the Internet equivalent trpt(8c).
/*
 * Copyright (c) 1985 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1985 Regents of the University of California.\n\
 All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)trsp.c	6.3 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#define PRUREQUESTS
#include <sys/protosw.h>

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

#define TCPSTATES
#include <netinet/tcp_fsm.h>
#define	TCPTIMERS
#include <netinet/tcp_timer.h>

#include <netns/ns.h>
#include <netns/ns_pcb.h>
#include <netns/idp.h>
#include <netns/idp_var.h>
#include <netns/sp.h>
#include <netns/spidp.h>
#include <netns/spp_timer.h>
#include <netns/spp_var.h>
#define SANAMES
#include <netns/spp_debug.h>

#include <stdio.h>
#include <errno.h>
#include <nlist.h>

unsigned long	ntime;
int	sflag;
int	tflag;
int	jflag;
int	aflag;
int	zflag;
int	numeric();
struct	nlist nl[] = {
	{ "_spp_debug" },
	{ "_spp_debx" },
	0
};
struct	spp_debug spp_debug[SPP_NDEBUG];
caddr_t	spp_pcbs[SPP_NDEBUG];
int	spp_debx;

main(argc, argv)
	int argc;
	char **argv;
{
	int i, mask = 0, npcbs = 0;
	char *system = "/vmunix", *core = "/dev/kmem";

	argc--, argv++;
again:
	if (argc > 0 && !strcmp(*argv, "-a")) {
		aflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-z")) {
		zflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-s")) {
		sflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-t")) {
		tflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-j")) {
		jflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-p")) {
		argc--, argv++;
		if (argc < 1) {
			fprintf(stderr, "-p: missing sppcb address\n");
			exit(1);
		}
		if (npcbs >= SPP_NDEBUG) {
			fprintf(stderr, "-p: too many pcb's specified\n");
			exit(1);
		}
		sscanf(*argv, "%x", &spp_pcbs[npcbs++]);
		argc--, argv++;
		goto again;
	}
	if (argc > 0) {
		system = *argv;
		argc--, argv++;
		mask++;
	}
	if (argc > 0) {
		core = *argv;
		argc--, argv++;
		mask++;
	}
	(void) nlist(system, nl);
	if (nl[0].n_value == 0) {
		fprintf(stderr, "trsp: %s: no namelist\n", system);
		exit(1);
	}
	(void) close(0);
	if (open(core, 0) < 0) {
		fprintf(stderr, "trsp: "); perror(core);
		exit(2);
	}
	if (mask) {
		nl[0].n_value &= 0x7fffffff;
		nl[1].n_value &= 0x7fffffff;
	}
	(void) lseek(0, nl[1].n_value, 0);
	if (read(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) {
		fprintf(stderr, "trsp: "); perror("spp_debx");
		exit(3);
	}
	printf("spp_debx=%d\n", spp_debx);
	(void) lseek(0, nl[0].n_value, 0);
	if (read(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) {
		fprintf(stderr, "trsp: "); perror("spp_debug");
		exit(3);
	}
	/*
	 * Here, we just want to clear out the old trace data and start over.
	 */
	if (zflag) {
		char *cp = (char *) spp_debug,
		     *cplim = cp + sizeof(spp_debug);
		(void) close(0);
		if (open(core, 2) < 0) {
			fprintf(stderr, "trsp: "); perror(core);
			exit(2);
		}
		while(cp < cplim) *cp++ = 0;
		(void) lseek(0, nl[0].n_value, 0);
		if (write(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) {
			fprintf(stderr, "trsp: "); perror("spp_debug");
			exit(3);
		}
		(void) lseek(0, nl[1].n_value, 0);
		spp_debx = 0;
		if (write(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) {
			fprintf(stderr, "trsp: "); perror("spp_debx");
			exit(3);
		}
		exit(0);
	}
	/*
	 * If no control blocks have been specified, figure
	 * out how many distinct one we have and summarize
	 * them in spp_pcbs for sorting the trace records
	 * below.
	 */
	if (npcbs == 0) {
		for (i = 0; i < SPP_NDEBUG; i++) {
			register int j;
			register struct spp_debug *sd = &spp_debug[i];

			if (sd->sd_cb == 0)
				continue;
			for (j = 0; j < npcbs; j++)
				if (spp_pcbs[j] == sd->sd_cb)
					break;
			if (j >= npcbs)
				spp_pcbs[npcbs++] = sd->sd_cb;
		}
	}
	qsort(spp_pcbs, npcbs, sizeof (caddr_t), numeric);
	if (jflag) {
		char *cp = "";

		for (i = 0; i < npcbs; i++) {
			printf("%s%x", cp, spp_pcbs[i]);
			cp = ", ";
		}
		if (*cp)
			putchar('\n');
		exit(0);
	}
	for (i = 0; i < npcbs; i++) {
		printf("\n%x:\n", spp_pcbs[i]);
		dotrace(spp_pcbs[i]);
	}
	exit(0);
}

dotrace(sppcb)
	register caddr_t sppcb;
{
	register int i;
	register struct spp_debug *sd;

	for (i = spp_debx % SPP_NDEBUG; i < SPP_NDEBUG; i++) {
		sd = &spp_debug[i];
		if (sppcb && sd->sd_cb != sppcb)
			continue;
		ntime = ntohl(sd->sd_time);
		spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp,
		    &sd->sd_si, sd->sd_req);
	}
	for (i = 0; i < spp_debx % SPP_NDEBUG; i++) {
		sd = &spp_debug[i];
		if (sppcb && sd->sd_cb != sppcb)
			continue;
		ntime = ntohl(sd->sd_time);
		spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp,
		    &sd->sd_si, sd->sd_req);
	}
}

ptime(ms)
	int ms;
{

	printf("%03d ", (ms/10) % 1000);
}

numeric(c1, c2)
	caddr_t *c1, *c2;
{
	
	return (*c1 - *c2);
}

spp_trace(act, ostate, asp, sp, si, req)
	short act, ostate;
	struct sppcb *asp, *sp;
	struct spidp *si;
	int req;
{
	u_short seq, ack, len, alo;
	int flags, timer;
	char *cp;

	if(ostate >= TCP_NSTATES) ostate = 0;
	if(act > SA_DROP) act = SA_DROP;
	printf("\n");
	ptime(ntime);
	printf("%s:%s", tcpstates[ostate], sanames[act]);

	if (si != 0) {
		seq = si->si_seq;
		ack = si->si_ack;
		alo = si->si_alo;
		len = si->si_len;
		switch (act) {
		case SA_RESPOND:
		case SA_OUTPUT:
				seq = ntohs(seq);
				ack = ntohs(ack);
				alo = ntohs(alo);
				len = ntohs(len);
		case SA_INPUT:
		case SA_DROP:
			if (aflag) {
				printf("\n\tsna=");
				ns_printhost(&si->si_sna);
				printf("\tdna=");
				ns_printhost(&si->si_dna);
			}
			printf("\n\t");
#define p1(f)  { printf("%s = %x, ", "f", f); }
			p1(seq); p1(ack); p1(alo); p1(len);
			flags = si->si_cc;
			printf("flags=%x", flags);
			if (flags) {
				char *cp = "<";
#define pf(f) { if (flags&SP_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
				pf(SP); pf(SA); pf(OB); pf(EM);
				printf(">");
			}
			printf(", ");
#define p2(f)  { printf("%s = %x, ", "f", si->si_/**/f); }
			p2(sid);p2(did);p2(dt);
			printf("\n\tsna=");
			ns_printhost(&si->si_sna);
			printf("\tdna=");
			ns_printhost(&si->si_dna);
		}
	}
	if(act == SA_USER) {
		printf("\treq=%s", prurequests[req&0xff]);
		if ((req & 0xff) == PRU_SLOWTIMO)
			printf("<%s>", tcptimers[req>>8]);
	}
	printf(" -> %s", tcpstates[sp->s_state]);

	/* print out internal state of sp !?! */
	printf("\n");
	if (sp == 0)
		return;
#define p3(f)  { printf("%s = %x, ", "f", sp->s_/**/f); }
	if(sflag) {
		printf("\t"); p3(rack); p3(ralo); p3(smax); p3(snxt); p3(flags);
#undef pf
#define pf(f) { if (flags&SF_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
		flags = sp->s_flags;
		if (flags || sp->s_oobflags) {
			char *cp = "<";
			pf(ACKNOW); pf(DELACK); pf(HI); pf(HO);
			pf(PI); pf(WIN); pf(RXT); pf(RVD);
			flags = sp->s_oobflags;
			pf(SOOB); pf(IOOB);
			printf(">");
		}

	}
	/* print out timers? */
	if (tflag) {
		char *cp = "\t";
		register int i;

		printf("\n\tTIMERS: ");
		p3(idle); p3(force); p3(rtseq);
		for (i = 0; i < TCPT_NTIMERS; i++) {
			if (sp->s_timer[i] == 0)
				continue;
			printf("%s%s=%d", cp, tcptimers[i], sp->s_timer[i]);
			if (i == TCPT_REXMT)
				printf(" (s_rxtshft=%d)", sp->s_rxtshift);
			cp = ", ";
		}
		if (*cp != '\t')
			putchar('\n');
	}
}

ns_printhost(p)
register struct ns_addr *p;
{

	printf("<net:%x%x,host:%4.4x%4.4x%4.4x,port:%x>",
			p->x_net.s_net[0],
			p->x_net.s_net[1],
			p->x_host.s_host[0],
			p->x_host.s_host[1],
			p->x_host.s_host[2],
			p->x_port);

}
Commit	Line	Data
3fededfc KS	1	This manual page documents a tool used for debugging failures in
	2	the Xerox NS Sequenced packet protocol layer. It is adapted from
	3	the Internet equivalent trpt(8c).
	4	/*
	5	* Copyright (c) 1985 Regents of the University of California.
f157d52e KB	6	* All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms are permitted
	9	* provided that the above copyright notice and this paragraph are
	10	* duplicated in all such forms and that any documentation,
	11	* advertising materials, and other materials related to such
	12	* distribution and use acknowledge that the software was developed
	13	* by the University of California, Berkeley. The name of the
	14	* University may not be used to endorse or promote products derived
	15	* from this software without specific prior written permission.
	16	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	17	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	18	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
3fededfc KS	19	*/
	20
	21	#ifndef lint
	22	char copyright[] =
f157d52e	23	"@(#) Copyright (c) 1985 Regents of the University of California.\n\
3fededfc	24	All rights reserved.\n";
f157d52e	25	#endif /* not lint */
3fededfc KS	26
3fededfc KS	27	#ifndef lint
157934a8	28	static char sccsid[] = "@(#)trsp.c 6.3 (Berkeley) %G%";
f157d52e	29	#endif /* not lint */
3fededfc KS	30
	31	#include <sys/param.h>
	32	#include <sys/socket.h>
	33	#include <sys/socketvar.h>
	34	#define PRUREQUESTS
	35	#include <sys/protosw.h>
	36
	37	#include <net/route.h>
	38	#include <net/if.h>
	39
	40	#define TCPSTATES
	41	#include <netinet/tcp_fsm.h>
	42	#define TCPTIMERS
	43	#include <netinet/tcp_timer.h>
	44
	45	#include <netns/ns.h>
	46	#include <netns/ns_pcb.h>
	47	#include <netns/idp.h>
	48	#include <netns/idp_var.h>
	49	#include <netns/sp.h>
	50	#include <netns/spidp.h>
157934a8	51	#include <netns/spp_timer.h>
3fededfc KS	52	#include <netns/spp_var.h>
	53	#define SANAMES
	54	#include <netns/spp_debug.h>
	55
	56	#include <stdio.h>
	57	#include <errno.h>
	58	#include <nlist.h>
	59
	60	unsigned long ntime;
	61	int sflag;
	62	int tflag;
	63	int jflag;
	64	int aflag;
	65	int zflag;
	66	int numeric();
	67	struct nlist nl[] = {
	68	{ "_spp_debug" },
	69	{ "_spp_debx" },
	70	0
	71	};
	72	struct spp_debug spp_debug[SPP_NDEBUG];
	73	caddr_t spp_pcbs[SPP_NDEBUG];
	74	int spp_debx;
	75
	76	main(argc, argv)
	77	int argc;
	78	char **argv;
	79	{
	80	int i, mask = 0, npcbs = 0;
	81	char system = "/vmunix", core = "/dev/kmem";
	82
	83	argc--, argv++;
	84	again:
	85	if (argc > 0 && !strcmp(*argv, "-a")) {
	86	aflag++, argc--, argv++;
	87	goto again;
	88	}
	89	if (argc > 0 && !strcmp(*argv, "-z")) {
	90	zflag++, argc--, argv++;
	91	goto again;
	92	}
	93	if (argc > 0 && !strcmp(*argv, "-s")) {
	94	sflag++, argc--, argv++;
	95	goto again;
	96	}
	97	if (argc > 0 && !strcmp(*argv, "-t")) {
	98	tflag++, argc--, argv++;
	99	goto again;
	100	}
	101	if (argc > 0 && !strcmp(*argv, "-j")) {
	102	jflag++, argc--, argv++;
	103	goto again;
	104	}
	105	if (argc > 0 && !strcmp(*argv, "-p")) {
	106	argc--, argv++;
	107	if (argc < 1) {
	108	fprintf(stderr, "-p: missing sppcb address\n");
	109	exit(1);
	110	}
	111	if (npcbs >= SPP_NDEBUG) {
	112	fprintf(stderr, "-p: too many pcb's specified\n");
	113	exit(1);
	114	}
	115	sscanf(*argv, "%x", &spp_pcbs[npcbs++]);
116	argc--, argv++;
117	goto again;
118	}
119	if (argc > 0) {
120	system = *argv;
121	argc--, argv++;
122	mask++;
123	}
124	if (argc > 0) {
125	core = *argv;
126	argc--, argv++;
127	mask++;
128	}
129	(void) nlist(system, nl);
130	if (nl[0].n_value == 0) {
131	fprintf(stderr, "trsp: %s: no namelist\n", system);
132	exit(1);
133	}
134	(void) close(0);
135	if (open(core, 0) < 0) {
136	fprintf(stderr, "trsp: "); perror(core);
137	exit(2);
138	}
139	if (mask) {
140	nl[0].n_value &= 0x7fffffff;
141	nl[1].n_value &= 0x7fffffff;
142	}
143	(void) lseek(0, nl[1].n_value, 0);
144	if (read(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) {
145	fprintf(stderr, "trsp: "); perror("spp_debx");
146	exit(3);
147	}
148	printf("spp_debx=%d\n", spp_debx);
149	(void) lseek(0, nl[0].n_value, 0);
150	if (read(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) {
151	fprintf(stderr, "trsp: "); perror("spp_debug");
152	exit(3);
153	}
154	/*
155	* Here, we just want to clear out the old trace data and start over.
156	*/
157	if (zflag) {
158	char cp = (char ) spp_debug,
159	*cplim = cp + sizeof(spp_debug);
160	(void) close(0);
161	if (open(core, 2) < 0) {
162	fprintf(stderr, "trsp: "); perror(core);
163	exit(2);
164	}
165	while(cp < cplim) *cp++ = 0;
166	(void) lseek(0, nl[0].n_value, 0);
167	if (write(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) {
168	fprintf(stderr, "trsp: "); perror("spp_debug");
169	exit(3);
170	}
171	(void) lseek(0, nl[1].n_value, 0);
172	spp_debx = 0;
173	if (write(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) {
174	fprintf(stderr, "trsp: "); perror("spp_debx");
175	exit(3);
176	}
177	exit(0);
178	}
179	/*
180	* If no control blocks have been specified, figure
181	* out how many distinct one we have and summarize
182	* them in spp_pcbs for sorting the trace records
183	* below.
184	*/
185	if (npcbs == 0) {
186	for (i = 0; i < SPP_NDEBUG; i++) {
187	register int j;
188	register struct spp_debug *sd = &spp_debug[i];
189
190	if (sd->sd_cb == 0)
191	continue;
192	for (j = 0; j < npcbs; j++)
193	if (spp_pcbs[j] == sd->sd_cb)
194	break;
195	if (j >= npcbs)
196	spp_pcbs[npcbs++] = sd->sd_cb;
197	}
198	}
199	qsort(spp_pcbs, npcbs, sizeof (caddr_t), numeric);
200	if (jflag) {
201	char *cp = "";
202
203	for (i = 0; i < npcbs; i++) {
204	printf("%s%x", cp, spp_pcbs[i]);
205	cp = ", ";
206	}
207	if (*cp)
208	putchar('\n');
209	exit(0);
210	}
211	for (i = 0; i < npcbs; i++) {
212	printf("\n%x:\n", spp_pcbs[i]);
213	dotrace(spp_pcbs[i]);
214	}
215	exit(0);
216	}
217
218	dotrace(sppcb)
219	register caddr_t sppcb;
220	{
221	register int i;
222	register struct spp_debug *sd;
223
224	for (i = spp_debx % SPP_NDEBUG; i < SPP_NDEBUG; i++) {
225	sd = &spp_debug[i];
226	if (sppcb && sd->sd_cb != sppcb)
227	continue;
228	ntime = ntohl(sd->sd_time);
229	spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp,
230	&sd->sd_si, sd->sd_req);
231	}
232	for (i = 0; i < spp_debx % SPP_NDEBUG; i++) {
233	sd = &spp_debug[i];
234	if (sppcb && sd->sd_cb != sppcb)
235	continue;
236	ntime = ntohl(sd->sd_time);
237	spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp,
238	&sd->sd_si, sd->sd_req);
239	}
240	}
241
242	ptime(ms)
243	int ms;
244	{
245
246	printf("%03d ", (ms/10) % 1000);
247	}
248
249	numeric(c1, c2)
250	caddr_t c1, c2;
251	{
252
253	return (c1 - c2);
254	}
255
256	spp_trace(act, ostate, asp, sp, si, req)
257	short act, ostate;
258	struct sppcb asp, sp;
259	struct spidp *si;
260	int req;
261	{
262	u_short seq, ack, len, alo;
263	int flags, timer;
264	char *cp;
265
266	if(ostate >= TCP_NSTATES) ostate = 0;
267	if(act > SA_DROP) act = SA_DROP;
268	printf("\n");
269	ptime(ntime);
270	printf("%s:%s", tcpstates[ostate], sanames[act]);
271
272	if (si != 0) {
273	seq = si->si_seq;
274	ack = si->si_ack;
275	alo = si->si_alo;
276	len = si->si_len;
277	switch (act) {
278	case SA_RESPOND:
279	case SA_OUTPUT:
280	seq = ntohs(seq);
281	ack = ntohs(ack);
282	alo = ntohs(alo);
283	len = ntohs(len);
284	case SA_INPUT:
285	case SA_DROP:
286	if (aflag) {
287	printf("\n\tsna=");
288	ns_printhost(&si->si_sna);
289	printf("\tdna=");
290	ns_printhost(&si->si_dna);
291	}
292	printf("\n\t");
293	#define p1(f) { printf("%s = %x, ", "f", f); }
294	p1(seq); p1(ack); p1(alo); p1(len);
295	flags = si->si_cc;
296	printf("flags=%x", flags);
297	if (flags) {
298	char *cp = "<";
299	#define pf(f) { if (flags&SP_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
300	pf(SP); pf(SA); pf(OB); pf(EM);
301	printf(">");
302	}
303	printf(", ");
304	#define p2(f) { printf("%s = %x, ", "f", si->si_/**/f); }
305	p2(sid);p2(did);p2(dt);
306	printf("\n\tsna=");
307	ns_printhost(&si->si_sna);
308	printf("\tdna=");
309	ns_printhost(&si->si_dna);
310	}
311	}
312	if(act == SA_USER) {
313	printf("\treq=%s", prurequests[req&0xff]);
314	if ((req & 0xff) == PRU_SLOWTIMO)
315	printf("<%s>", tcptimers[req>>8]);
316	}
317	printf(" -> %s", tcpstates[sp->s_state]);
318
319	/* print out internal state of sp !?! */
320	printf("\n");
321	if (sp == 0)
322	return;
323	#define p3(f) { printf("%s = %x, ", "f", sp->s_/**/f); }
324	if(sflag) {
157934a8	325	printf("\t"); p3(rack); p3(ralo); p3(smax); p3(snxt); p3(flags);
3fededfc KS	326	#undef pf
	327	#define pf(f) { if (flags&SF_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
	328	flags = sp->s_flags;
	329	if (flags \|\| sp->s_oobflags) {
	330	char *cp = "<";
157934a8 KB	331	pf(ACKNOW); pf(DELACK); pf(HI); pf(HO);
157934a8 KB	332	pf(PI); pf(WIN); pf(RXT); pf(RVD);
3fededfc KS	333	flags = sp->s_oobflags;
	334	pf(SOOB); pf(IOOB);
	335	printf(">");
	336	}
	337
	338	}
	339	/* print out timers? */
	340	if (tflag) {
	341	char *cp = "\t";
	342	register int i;
	343
	344	printf("\n\tTIMERS: ");
	345	p3(idle); p3(force); p3(rtseq);
	346	for (i = 0; i < TCPT_NTIMERS; i++) {
	347	if (sp->s_timer[i] == 0)
	348	continue;
	349	printf("%s%s=%d", cp, tcptimers[i], sp->s_timer[i]);
	350	if (i == TCPT_REXMT)
	351	printf(" (s_rxtshft=%d)", sp->s_rxtshift);
	352	cp = ", ";
	353	}
	354	if (*cp != '\t')
	355	putchar('\n');
	356	}
	357	}
	358
	359	ns_printhost(p)
	360	register struct ns_addr *p;
	361	{
	362
	363	printf("<net:%x%x,host:%4.4x%4.4x%4.4x,port:%x>",
	364	p->x_net.s_net[0],
	365	p->x_net.s_net[1],
	366	p->x_host.s_host[0],
	367	p->x_host.s_host[1],
	368	p->x_host.s_host[2],
	369	p->x_port);
	370
	371	}
	372