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

/*
 * Copyright (c) 1983, 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)ns.c	8.1 (Berkeley) %G%";
#endif /* not lint */

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

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

#include <netinet/tcp_fsm.h>

#include <netns/ns.h>
#include <netns/ns_pcb.h>
#include <netns/idp.h>
#include <netns/idp_var.h>
#include <netns/ns_error.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 <nlist.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include "netstat.h"

struct	nspcb nspcb;
struct	sppcb sppcb;
struct	socket sockb;

static char *ns_prpr __P((struct ns_addr *));
static void ns_erputil __P((int, int));

static	int first = 1;

/*
 * Print a summary of connections related to a Network Systems
 * protocol.  For SPP, also give state of connection.
 * Listening processes (aflag) are suppressed unless the
 * -a (all) flag is specified.
 */

void
nsprotopr(off, name)
	u_long off;
	char *name;
{
	struct nspcb cb;
	register struct nspcb *prev, *next;
	int isspp;

	if (off == 0)
		return;
	isspp = strcmp(name, "spp") == 0;
	kread(off, (char *)&cb, sizeof (struct nspcb));
	nspcb = cb;
	prev = (struct nspcb *)off;
	if (nspcb.nsp_next == (struct nspcb *)off)
		return;
	for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) {
		u_long ppcb;

		next = nspcb.nsp_next;
		kread((u_long)next, (char *)&nspcb, sizeof (nspcb));
		if (nspcb.nsp_prev != prev) {
			printf("???\n");
			break;
		}
		if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
			continue;
		}
		kread((u_long)nspcb.nsp_socket,
				(char *)&sockb, sizeof (sockb));
		ppcb = (u_long) nspcb.nsp_pcb;
		if (ppcb) {
			if (isspp) {
				kread(ppcb, (char *)&sppcb, sizeof (sppcb));
			} else continue;
		} else
			if (isspp) continue;
		if (first) {
			printf("Active NS connections");
			if (aflag)
				printf(" (including servers)");
			putchar('\n');
			if (Aflag)
				printf("%-8.8s ", "PCB");
			printf(Aflag ?
				"%-5.5s %-6.6s %-6.6s  %-18.18s %-18.18s %s\n" :
				"%-5.5s %-6.6s %-6.6s  %-22.22s %-22.22s %s\n",
				"Proto", "Recv-Q", "Send-Q",
				"Local Address", "Foreign Address", "(state)");
			first = 0;
		}
		if (Aflag)
			printf("%8x ", ppcb);
		printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
			sockb.so_snd.sb_cc);
		printf("  %-22.22s", ns_prpr(&nspcb.nsp_laddr));
		printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
		if (isspp) {
			extern char *tcpstates[];
			if (sppcb.s_state >= TCP_NSTATES)
				printf(" %d", sppcb.s_state);
			else
				printf(" %s", tcpstates[sppcb.s_state]);
		}
		putchar('\n');
		prev = next;
	}
}
#define ANY(x,y,z) \
	((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)

/*
 * Dump SPP statistics structure.
 */
void
spp_stats(off, name)
	u_long off;
	char *name;
{
	struct spp_istat spp_istat;
#define sppstat spp_istat.newstats

	if (off == 0)
		return;
	kread(off, (char *)&spp_istat, sizeof (spp_istat));
	printf("%s:\n", name);
	ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets ");
	ANY(spp_istat.gonawy, "connection", " terminated due to our end dying");
	ANY(spp_istat.nonucn, "connection",
	    " dropped due to inability to connect");
	ANY(spp_istat.noconn, "connection",
	    " dropped due to inability to connect");
	ANY(spp_istat.notme, "connection",
	    " incompleted due to mismatched id's");
	ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's");
	ANY(spp_istat.bdreas, "packet", " dropped out of sequence");
	ANY(spp_istat.lstdup, "packet", " duplicating the highest packet");
	ANY(spp_istat.notyet, "packet", " refused as exceeding allocation");
	ANY(sppstat.spps_connattempt, "connection", " initiated");
	ANY(sppstat.spps_accepts, "connection", " accepted");
	ANY(sppstat.spps_connects, "connection", " established");
	ANY(sppstat.spps_drops, "connection", " dropped");
	ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
	ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
	ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
	ANY(sppstat.spps_rttupdated, "time", " we got rtt");
	ANY(sppstat.spps_delack, "delayed ack", " sent");
	ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
	ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
	ANY(sppstat.spps_persisttimeo, "persist timeout", "");
	ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
	ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
	ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
	ANY(sppstat.spps_sndtotal, "total packet", " sent");
	ANY(sppstat.spps_sndpack, "data packet", " sent");
	ANY(sppstat.spps_sndbyte, "data byte", " sent");
	ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
	ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
	ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
	ANY(sppstat.spps_sndprobe, "window probe", " sent");
	ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
	ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
	ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
	ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
	ANY(sppstat.spps_rcvtotal, "total packet", " received");
	ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
	ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
	ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
	ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
	ANY(sppstat.spps_rcvshort, "packet", " received too short");
	ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
	ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
	ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
	ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
	ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
	ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
	ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
	ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
	ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
	ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
	ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
	ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
	ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
	ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
	ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
}
#undef ANY
#define ANY(x,y,z)  ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)

/*
 * Dump IDP statistics structure.
 */
void
idp_stats(off, name)
	u_long off;
	char *name;
{
	struct idpstat idpstat;

	if (off == 0)
		return;
	kread(off, (char *)&idpstat, sizeof (idpstat));
	printf("%s:\n", name);
	ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
	ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
	ANY(idpstat.idps_badsum, "packet", " with bad checksums");
}

static	struct {
	u_short code;
	char *name;
	char *where;
} ns_errnames[] = {
	{0, "Unspecified Error", " at Destination"},
	{1, "Bad Checksum", " at Destination"},
	{2, "No Listener", " at Socket"},
	{3, "Packet", " Refused due to lack of space at Destination"},
	{01000, "Unspecified Error", " while gatewayed"},
	{01001, "Bad Checksum", " while gatewayed"},
	{01002, "Packet", " forwarded too many times"},
	{01003, "Packet", " too large to be forwarded"},
	{-1, 0, 0},
};

/*
 * Dump NS Error statistics structure.
 */
/*ARGSUSED*/
void
nserr_stats(off, name)
	u_long off;
	char *name;
{
	struct ns_errstat ns_errstat;
	register int j;
	register int histoprint = 1;
	int z;

	if (off == 0)
		return;
	kread(off, (char *)&ns_errstat, sizeof (ns_errstat));
	printf("NS error statistics:\n");
	ANY(ns_errstat.ns_es_error, "call", " to ns_error");
	ANY(ns_errstat.ns_es_oldshort, "error",
		" ignored due to insufficient addressing");
	ANY(ns_errstat.ns_es_oldns_err, "error request",
		" in response to error packets");
	ANY(ns_errstat.ns_es_tooshort, "error packet",
		" received incomplete");
	ANY(ns_errstat.ns_es_badcode, "error packet",
		" received of unknown type");
	for(j = 0; j < NS_ERR_MAX; j ++) {
		z = ns_errstat.ns_es_outhist[j];
		if (z && histoprint) {
			printf("Output Error Histogram:\n");
			histoprint = 0;
		}
		ns_erputil(z, ns_errstat.ns_es_codes[j]);

	}
	histoprint = 1;
	for(j = 0; j < NS_ERR_MAX; j ++) {
		z = ns_errstat.ns_es_inhist[j];
		if (z && histoprint) {
			printf("Input Error Histogram:\n");
			histoprint = 0;
		}
		ns_erputil(z, ns_errstat.ns_es_codes[j]);
	}
}

static void
ns_erputil(z, c)
	int z, c;
{
	int j;
	char codebuf[30];
	char *name, *where;

	for(j = 0;; j ++) {
		if ((name = ns_errnames[j].name) == 0)
			break;
		if (ns_errnames[j].code == c)
			break;
	}
	if (name == 0)  {
		if (c > 01000)
			where = "in transit";
		else
			where = "at destination";
		sprintf(codebuf, "Unknown XNS error code 0%o", c);
		name = codebuf;
	} else
		where =  ns_errnames[j].where;
	ANY(z, name, where);
}

static struct sockaddr_ns ssns = {AF_NS};

static
char *ns_prpr(x)
	struct ns_addr *x;
{
	struct sockaddr_ns *sns = &ssns;

	sns->sns_addr = *x;
	return(ns_print((struct sockaddr *)sns));
}
Commit	Line	Data
a1f8d2f2	1	/*
2839532b KB	2	* Copyright (c) 1983, 1988, 1993
2839532b KB	3	* The Regents of the University of California. All rights reserved.
ee3f90a5	4	*
87198c0c	5	* %sccs.include.redist.c%
a1f8d2f2 KS	6	*/
a1f8d2f2 KS	7
a1f8d2f2	8	#ifndef lint
2839532b	9	static char sccsid[] = "@(#)ns.c 8.1 (Berkeley) %G%";
b36fc510	10	#endif /* not lint */
a1f8d2f2	11
37fca8b1	12	#include <sys/param.h>
a1f8d2f2 KS	13	#include <sys/socket.h>
	14	#include <sys/socketvar.h>
	15	#include <sys/mbuf.h>
	16	#include <sys/protosw.h>
	17
	18	#include <net/route.h>
	19	#include <net/if.h>
	20
	21	#include <netinet/tcp_fsm.h>
a1f8d2f2 KS	22
	23	#include <netns/ns.h>
	24	#include <netns/ns_pcb.h>
	25	#include <netns/idp.h>
	26	#include <netns/idp_var.h>
	27	#include <netns/ns_error.h>
	28	#include <netns/sp.h>
	29	#include <netns/spidp.h>
cacc72f7	30	#include <netns/spp_timer.h>
a1f8d2f2 KS	31	#include <netns/spp_var.h>
	32	#define SANAMES
	33	#include <netns/spp_debug.h>
	34
bc0c28c1 KB	35	#include <nlist.h>
	36	#include <errno.h>
	37	#include <stdio.h>
	38	#include <string.h>
6e549c8f	39	#include "netstat.h"
a1f8d2f2 KS	40
	41	struct nspcb nspcb;
	42	struct sppcb sppcb;
	43	struct socket sockb;
6e549c8f KS	44
6e549c8f KS	45	static char ns_prpr __P((struct ns_addr ));
27788811	46	static void ns_erputil __P((int, int));
a1f8d2f2 KS	47
	48	static int first = 1;
	49
	50	/*
	51	* Print a summary of connections related to a Network Systems
	52	* protocol. For SPP, also give state of connection.
	53	* Listening processes (aflag) are suppressed unless the
	54	* -a (all) flag is specified.
	55	*/
	56
6e549c8f	57	void
a1f8d2f2	58	nsprotopr(off, name)
d1cfb820	59	u_long off;
a1f8d2f2 KS	60	char *name;
	61	{
	62	struct nspcb cb;
	63	register struct nspcb prev, next;
	64	int isspp;
	65
4a920942	66	if (off == 0)
a1f8d2f2	67	return;
a1f8d2f2	68	isspp = strcmp(name, "spp") == 0;
6e549c8f	69	kread(off, (char *)&cb, sizeof (struct nspcb));
a1f8d2f2 KS	70	nspcb = cb;
a1f8d2f2 KS	71	prev = (struct nspcb *)off;
4a920942 MK	72	if (nspcb.nsp_next == (struct nspcb *)off)
4a920942 MK	73	return;
a1f8d2f2	74	for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) {
d1cfb820	75	u_long ppcb;
a1f8d2f2 KS	76
a1f8d2f2 KS	77	next = nspcb.nsp_next;
d1cfb820	78	kread((u_long)next, (char *)&nspcb, sizeof (nspcb));
a1f8d2f2 KS	79	if (nspcb.nsp_prev != prev) {
	80	printf("???\n");
	81	break;
	82	}
	83	if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
	84	continue;
	85	}
d1cfb820	86	kread((u_long)nspcb.nsp_socket,
c34ecf77	87	(char *)&sockb, sizeof (sockb));
d1cfb820	88	ppcb = (u_long) nspcb.nsp_pcb;
a1f8d2f2 KS	89	if (ppcb) {
a1f8d2f2 KS	90	if (isspp) {
6e549c8f	91	kread(ppcb, (char *)&sppcb, sizeof (sppcb));
a1f8d2f2 KS	92	} else continue;
	93	} else
	94	if (isspp) continue;
26ebe146 MK	95	if (first) {
	96	printf("Active NS connections");
	97	if (aflag)
	98	printf(" (including servers)");
	99	putchar('\n');
	100	if (Aflag)
	101	printf("%-8.8s ", "PCB");
	102	printf(Aflag ?
	103	"%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
	104	"%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
	105	"Proto", "Recv-Q", "Send-Q",
	106	"Local Address", "Foreign Address", "(state)");
	107	first = 0;
	108	}
a1f8d2f2 KS	109	if (Aflag)
	110	printf("%8x ", ppcb);
	111	printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
	112	sockb.so_snd.sb_cc);
	113	printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr));
	114	printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
	115	if (isspp) {
	116	extern char *tcpstates[];
f7c99b06	117	if (sppcb.s_state >= TCP_NSTATES)
a1f8d2f2 KS	118	printf(" %d", sppcb.s_state);
	119	else
	120	printf(" %s", tcpstates[sppcb.s_state]);
	121	}
	122	putchar('\n');
	123	prev = next;
	124	}
	125	}
bc0c28c1 KB	126	#define ANY(x,y,z) \
bc0c28c1 KB	127	((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)
a1f8d2f2 KS	128
	129	/*
	130	* Dump SPP statistics structure.
	131	*/
6e549c8f	132	void
a1f8d2f2	133	spp_stats(off, name)
d1cfb820	134	u_long off;
a1f8d2f2 KS	135	char *name;
	136	{
	137	struct spp_istat spp_istat;
42e83ef1	138	#define sppstat spp_istat.newstats
a1f8d2f2	139
4a920942	140	if (off == 0)
a1f8d2f2	141	return;
6e549c8f	142	kread(off, (char *)&spp_istat, sizeof (spp_istat));
a1f8d2f2 KS	143	printf("%s:\n", name);
	144	ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets ");
	145	ANY(spp_istat.gonawy, "connection", " terminated due to our end dying");
bc0c28c1 KB	146	ANY(spp_istat.nonucn, "connection",
	147	" dropped due to inability to connect");
	148	ANY(spp_istat.noconn, "connection",
	149	" dropped due to inability to connect");
	150	ANY(spp_istat.notme, "connection",
	151	" incompleted due to mismatched id's");
a1f8d2f2 KS	152	ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's");
	153	ANY(spp_istat.bdreas, "packet", " dropped out of sequence");
	154	ANY(spp_istat.lstdup, "packet", " duplicating the highest packet");
	155	ANY(spp_istat.notyet, "packet", " refused as exceeding allocation");
42e83ef1 KS	156	ANY(sppstat.spps_connattempt, "connection", " initiated");
	157	ANY(sppstat.spps_accepts, "connection", " accepted");
	158	ANY(sppstat.spps_connects, "connection", " established");
	159	ANY(sppstat.spps_drops, "connection", " dropped");
	160	ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
	161	ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
	162	ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
	163	ANY(sppstat.spps_rttupdated, "time", " we got rtt");
	164	ANY(sppstat.spps_delack, "delayed ack", " sent");
	165	ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
	166	ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
	167	ANY(sppstat.spps_persisttimeo, "persist timeout", "");
	168	ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
	169	ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
	170	ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
	171	ANY(sppstat.spps_sndtotal, "total packet", " sent");
	172	ANY(sppstat.spps_sndpack, "data packet", " sent");
	173	ANY(sppstat.spps_sndbyte, "data byte", " sent");
	174	ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
	175	ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
	176	ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
	177	ANY(sppstat.spps_sndprobe, "window probe", " sent");
	178	ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
	179	ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
	180	ANY(sppstat.spps_sndctrl, "control (SYN\|FIN\|RST) packet", " sent");
	181	ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
	182	ANY(sppstat.spps_rcvtotal, "total packet", " received");
	183	ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
	184	ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
	185	ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
	186	ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
	187	ANY(sppstat.spps_rcvshort, "packet", " received too short");
	188	ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
	189	ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
	190	ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
	191	ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
	192	ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
	193	ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
	194	ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
	195	ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
	196	ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
	197	ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
	198	ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
	199	ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
	200	ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
	201	ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
	202	ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
a1f8d2f2	203	}
42e83ef1 KS	204	#undef ANY
42e83ef1 KS	205	#define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)
a1f8d2f2 KS	206
	207	/*
	208	* Dump IDP statistics structure.
	209	*/
6e549c8f	210	void
a1f8d2f2	211	idp_stats(off, name)
d1cfb820	212	u_long off;
a1f8d2f2 KS	213	char *name;
	214	{
	215	struct idpstat idpstat;
	216
4a920942	217	if (off == 0)
a1f8d2f2	218	return;
6e549c8f	219	kread(off, (char *)&idpstat, sizeof (idpstat));
f7c99b06	220	printf("%s:\n", name);
a1f8d2f2 KS	221	ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
	222	ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
	223	ANY(idpstat.idps_badsum, "packet", " with bad checksums");
	224	}
	225
42e83ef1 KS	226	static struct {
	227	u_short code;
	228	char *name;
	229	char *where;
	230	} ns_errnames[] = {
	231	{0, "Unspecified Error", " at Destination"},
	232	{1, "Bad Checksum", " at Destination"},
	233	{2, "No Listener", " at Socket"},
	234	{3, "Packet", " Refused due to lack of space at Destination"},
	235	{01000, "Unspecified Error", " while gatewayed"},
	236	{01001, "Bad Checksum", " while gatewayed"},
	237	{01002, "Packet", " forwarded too many times"},
	238	{01003, "Packet", " too large to be forwarded"},
	239	{-1, 0, 0},
a1f8d2f2 KS	240	};
	241
	242	/*
	243	* Dump NS Error statistics structure.
	244	*/
f7c99b06	245	/ARGSUSED/
6e549c8f	246	void
a1f8d2f2	247	nserr_stats(off, name)
d1cfb820	248	u_long off;
a1f8d2f2 KS	249	char *name;
	250	{
	251	struct ns_errstat ns_errstat;
	252	register int j;
	253	register int histoprint = 1;
	254	int z;
	255
4a920942	256	if (off == 0)
a1f8d2f2	257	return;
6e549c8f	258	kread(off, (char *)&ns_errstat, sizeof (ns_errstat));
a1f8d2f2 KS	259	printf("NS error statistics:\n");
	260	ANY(ns_errstat.ns_es_error, "call", " to ns_error");
	261	ANY(ns_errstat.ns_es_oldshort, "error",
	262	" ignored due to insufficient addressing");
	263	ANY(ns_errstat.ns_es_oldns_err, "error request",
	264	" in response to error packets");
	265	ANY(ns_errstat.ns_es_tooshort, "error packet",
	266	" received incomplete");
	267	ANY(ns_errstat.ns_es_badcode, "error packet",
	268	" received of unknown type");
	269	for(j = 0; j < NS_ERR_MAX; j ++) {
	270	z = ns_errstat.ns_es_outhist[j];
	271	if (z && histoprint) {
	272	printf("Output Error Histogram:\n");
	273	histoprint = 0;
	274	}
42e83ef1 KS	275	ns_erputil(z, ns_errstat.ns_es_codes[j]);
42e83ef1 KS	276
a1f8d2f2 KS	277	}
	278	histoprint = 1;
	279	for(j = 0; j < NS_ERR_MAX; j ++) {
	280	z = ns_errstat.ns_es_inhist[j];
	281	if (z && histoprint) {
	282	printf("Input Error Histogram:\n");
	283	histoprint = 0;
	284	}
42e83ef1 KS	285	ns_erputil(z, ns_errstat.ns_es_codes[j]);
	286	}
	287	}
bc0c28c1	288
6e549c8f	289	static void
42e83ef1	290	ns_erputil(z, c)
6e549c8f	291	int z, c;
42e83ef1 KS	292	{
	293	int j;
	294	char codebuf[30];
	295	char name, where;
bc0c28c1	296
42e83ef1 KS	297	for(j = 0;; j ++) {
	298	if ((name = ns_errnames[j].name) == 0)
	299	break;
	300	if (ns_errnames[j].code == c)
	301	break;
a1f8d2f2	302	}
42e83ef1 KS	303	if (name == 0) {
	304	if (c > 01000)
	305	where = "in transit";
	306	else
	307	where = "at destination";
	308	sprintf(codebuf, "Unknown XNS error code 0%o", c);
	309	name = codebuf;
6e549c8f	310	} else
42e83ef1 KS	311	where = ns_errnames[j].where;
42e83ef1 KS	312	ANY(z, name, where);
a1f8d2f2	313	}
bc0c28c1	314
a1f8d2f2 KS	315	static struct sockaddr_ns ssns = {AF_NS};
a1f8d2f2 KS	316
6e549c8f	317	static
a1f8d2f2	318	char *ns_prpr(x)
bc0c28c1	319	struct ns_addr *x;
a1f8d2f2	320	{
a1f8d2f2	321	struct sockaddr_ns *sns = &ssns;
bc0c28c1	322
a1f8d2f2	323	sns->sns_addr = *x;
6e549c8f	324	return(ns_print((struct sockaddr *)sns));
a1f8d2f2	325	}