Partition the TCP connection table.
[dragonfly.git] / usr.bin / netstat / main.c
CommitLineData
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1/*
2 * Copyright (c) 1983, 1988, 1993
3 * Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
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32 *
33 * @(#) Copyright (c) 1983, 1988, 1993 Regents of the University of California. All rights reserved.
34 * @(#)main.c 8.4 (Berkeley) 3/1/94
35 * $FreeBSD: src/usr.bin/netstat/main.c,v 1.34.2.12 2001/09/17 15:17:46 ru Exp $
1d1731fa 36 * $DragonFly: src/usr.bin/netstat/main.c,v 1.5 2003/10/04 20:36:49 hmp Exp $
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37 */
38
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39#include <sys/param.h>
40#include <sys/file.h>
41#include <sys/protosw.h>
42#include <sys/socket.h>
43
44#include <netinet/in.h>
45
38a690d7 46#include <netgraph/socket/ng_socket.h>
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47
48#include <ctype.h>
49#include <err.h>
50#include <errno.h>
51#include <kvm.h>
52#include <limits.h>
53#include <netdb.h>
54#include <nlist.h>
55#include <paths.h>
56#include <stdio.h>
57#include <stdlib.h>
58#include <string.h>
59#include <unistd.h>
60#include "netstat.h"
61
62static struct nlist nl[] = {
63#define N_IFNET 0
64 { "_ifnet" },
65#define N_IMP 1
66 { "_imp_softc" },
67#define N_RTSTAT 2
68 { "_rtstat" },
69#define N_UNIXSW 3
70 { "_localsw" },
71#define N_IDP 4
72 { "_nspcb"},
73#define N_IDPSTAT 5
74 { "_idpstat"},
75#define N_SPPSTAT 6
76 { "_spp_istat"},
77#define N_NSERR 7
78 { "_ns_errstat"},
79#define N_CLNPSTAT 8
80 { "_clnp_stat"},
81#define IN_NOTUSED 9
82 { "_tp_inpcb" },
83#define ISO_TP 10
84 { "_tp_refinfo" },
85#define N_TPSTAT 11
86 { "_tp_stat" },
87#define N_ESISSTAT 12
88 { "_esis_stat"},
89#define N_NIMP 13
90 { "_nimp"},
91#define N_RTREE 14
92 { "_rt_tables"},
93#define N_CLTP 15
94 { "_cltb"},
95#define N_CLTPSTAT 16
96 { "_cltpstat"},
97#define N_NFILE 17
98 { "_nfile" },
99#define N_FILE 18
100 { "_file" },
101#define N_MRTSTAT 19
102 { "_mrtstat" },
103#define N_MFCTABLE 20
104 { "_mfctable" },
105#define N_VIFTABLE 21
106 { "_viftable" },
107#define N_IPX 22
108 { "_ipxpcb"},
109#define N_IPXSTAT 23
110 { "_ipxstat"},
111#define N_SPXSTAT 24
112 { "_spx_istat"},
113#define N_DDPSTAT 25
114 { "_ddpstat"},
115#define N_DDPCB 26
116 { "_ddpcb"},
117#define N_NGSOCKS 27
118 { "_ngsocklist"},
119#define N_IP6STAT 28
120 { "_ip6stat" },
121#define N_ICMP6STAT 29
122 { "_icmp6stat" },
123#define N_IPSECSTAT 30
124 { "_ipsecstat" },
125#define N_IPSEC6STAT 31
126 { "_ipsec6stat" },
127#define N_PIM6STAT 32
128 { "_pim6stat" },
129#define N_MRT6PROTO 33
130 { "_ip6_mrtproto" },
131#define N_MRT6STAT 34
132 { "_mrt6stat" },
133#define N_MF6CTABLE 35
134 { "_mf6ctable" },
135#define N_MIF6TABLE 36
136 { "_mif6table" },
137#define N_PFKEYSTAT 37
138 { "_pfkeystat" },
139#define N_MBSTAT 38
140 { "_mbstat" },
141#define N_MBTYPES 39
142 { "_mbtypes" },
143#define N_NMBCLUSTERS 40
144 { "_nmbclusters" },
145#define N_NMBUFS 41
146 { "_nmbufs" },
147#define N_RTTRASH 42
148 { "_rttrash" },
149 { "" },
150};
151
152struct protox {
153 u_char pr_index; /* index into nlist of cb head */
154 u_char pr_sindex; /* index into nlist of stat block */
155 u_char pr_wanted; /* 1 if wanted, 0 otherwise */
156 void (*pr_cblocks)(u_long, char *, int);
157 /* control blocks printing routine */
158 void (*pr_stats)(u_long, char *, int);
159 /* statistics printing routine */
160 void (*pr_istats)(char *); /* per/if statistics printing routine */
161 char *pr_name; /* well-known name */
162 int pr_usesysctl; /* true if we use sysctl, not kvm */
163} protox[] = {
164 { -1, -1, 1, protopr,
165 tcp_stats, NULL, "tcp", IPPROTO_TCP },
166 { -1, -1, 1, protopr,
167 udp_stats, NULL, "udp", IPPROTO_UDP },
168 { -1, -1, 1, protopr,
169 NULL, NULL, "divert",IPPROTO_DIVERT },
170 { -1, -1, 1, protopr,
171 ip_stats, NULL, "ip", IPPROTO_RAW },
172 { -1, -1, 1, protopr,
173 icmp_stats, NULL, "icmp", IPPROTO_ICMP },
174 { -1, -1, 1, protopr,
175 igmp_stats, NULL, "igmp", IPPROTO_IGMP },
176#ifdef IPSEC
177 { -1, N_IPSECSTAT, 1, 0,
178 ipsec_stats, NULL, "ipsec", 0},
179#endif
180 { -1, -1, 1, 0,
181 bdg_stats, NULL, "bdg", 1 /* bridging... */ },
182 { -1, -1, 0, 0,
183 0, NULL, 0 }
184};
185
186#ifdef INET6
187struct protox ip6protox[] = {
188 { -1, -1, 1, protopr,
189 tcp_stats, NULL, "tcp", IPPROTO_TCP },
190 { -1, -1, 1, protopr,
191 udp_stats, NULL, "udp", IPPROTO_UDP },
192 { -1, N_IP6STAT, 1, protopr,
193 ip6_stats, ip6_ifstats, "ip6", IPPROTO_RAW },
194 { -1, N_ICMP6STAT, 1, protopr,
195 icmp6_stats, icmp6_ifstats, "icmp6",IPPROTO_ICMPV6 },
196#ifdef IPSEC
197 { -1, N_IPSEC6STAT, 1, 0,
198 ipsec_stats, NULL, "ipsec6",0 },
199#endif
200#ifdef notyet
201 { -1, N_PIM6STAT, 1, 0,
202 pim6_stats, NULL, "pim6", 0 },
203#endif
204 { -1, -1, 1, 0,
205 rip6_stats, NULL, "rip6", 0 },
206 { -1, -1, 1, 0,
207 bdg_stats, NULL, "bdg", 1 /* bridging... */ },
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208 { -1, -1, 1, protopr,
209 pim_stats, NULL, "pim", IPPROTO_PIM },
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210 { -1, -1, 0, 0,
211 0, NULL, 0, 0 }
212};
213#endif /*INET6*/
214
215#ifdef IPSEC
216struct protox pfkeyprotox[] = {
217 { -1, N_PFKEYSTAT, 1, 0,
218 pfkey_stats, NULL, "pfkey", 0 },
219 { -1, -1, 0, 0,
220 0, NULL, 0, 0 }
221};
222#endif
223
224struct protox atalkprotox[] = {
225 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr,
226 ddp_stats, NULL, "ddp" },
227 { -1, -1, 0, 0,
228 0, NULL, 0 }
229};
230
231struct protox netgraphprotox[] = {
232 { N_NGSOCKS, -1, 1, netgraphprotopr,
233 NULL, NULL, "ctrl" },
234 { N_NGSOCKS, -1, 1, netgraphprotopr,
235 NULL, NULL, "data" },
236 { -1, NULL, 0, 0,
237 0, NULL, 0 }
238};
239
240struct protox ipxprotox[] = {
241 { N_IPX, N_IPXSTAT, 1, ipxprotopr,
242 ipx_stats, NULL, "ipx", 0 },
243 { N_IPX, N_SPXSTAT, 1, ipxprotopr,
244 spx_stats, NULL, "spx", 0 },
245 { -1, -1, 0, 0,
246 0, NULL, 0, 0 }
247};
248
249#ifdef NS
250struct protox nsprotox[] = {
251 { N_IDP, N_IDPSTAT, 1, nsprotopr,
252 idp_stats, NULL, "idp" },
253 { N_IDP, N_SPPSTAT, 1, nsprotopr,
254 spp_stats, NULL, "spp" },
255 { -1, N_NSERR, 1, 0,
256 nserr_stats, NULL, "ns_err" },
257 { -1, -1, 0, 0,
258 0, NULL, 0 }
259};
260#endif
261
262#ifdef ISO
263struct protox isoprotox[] = {
264 { ISO_TP, N_TPSTAT, 1, iso_protopr,
265 tp_stats, NULL, "tp" },
266 { N_CLTP, N_CLTPSTAT, 1, iso_protopr,
267 cltp_stats, NULL, "cltp" },
268 { -1, N_CLNPSTAT, 1, 0,
269 clnp_stats, NULL, "clnp"},
270 { -1, N_ESISSTAT, 1, 0,
271 esis_stats, NULL, "esis"},
272 { -1, -1, 0, 0,
273 0, NULL, 0 }
274};
275#endif
276
277struct protox *protoprotox[] = {
278 protox,
279#ifdef INET6
280 ip6protox,
281#endif
282#ifdef IPSEC
283 pfkeyprotox,
284#endif
285 ipxprotox, atalkprotox,
286#ifdef NS
287 nsprotox,
288#endif
289#ifdef ISO
290 isoprotox,
291#endif
292 NULL };
293
294static void printproto (struct protox *, char *);
295static void usage (void);
296static struct protox *name2protox (char *);
297static struct protox *knownname (char *);
298
299static kvm_t *kvmd;
300static char *nlistf = NULL, *memf = NULL;
301
302int Aflag; /* show addresses of protocol control block */
303int aflag; /* show all sockets (including servers) */
304int bflag; /* show i/f total bytes in/out */
305int dflag; /* show i/f dropped packets */
306int gflag; /* show group (multicast) routing or stats */
307int iflag; /* show interfaces */
308int Lflag; /* show size of listen queues */
309int mflag; /* show memory stats */
310int numeric_addr; /* show addresses numerically */
311int numeric_port; /* show ports numerically */
312static int pflag; /* show given protocol */
313int rflag; /* show routing tables (or routing stats) */
314int sflag; /* show protocol statistics */
315int tflag; /* show i/f watchdog timers */
316int Wflag; /* wide display */
317int zflag; /* zero stats */
318
319int interval; /* repeat interval for i/f stats */
320
321char *interface; /* desired i/f for stats, or NULL for all i/fs */
322int unit; /* unit number for above */
323
324int af; /* address family */
325
326int
1d1731fa 327main(int argc, char **argv)
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328{
329 register struct protox *tp = NULL; /* for printing cblocks & stats */
330 int ch;
331
332 af = AF_UNSPEC;
333
334 while ((ch = getopt(argc, argv, "Aabdf:gI:iLlM:mN:np:rSstuWw:z")) != -1)
335 switch(ch) {
336 case 'A':
337 Aflag = 1;
338 break;
339 case 'a':
340 aflag = 1;
341 break;
342 case 'b':
343 bflag = 1;
344 break;
345 case 'd':
346 dflag = 1;
347 break;
348 case 'f':
349#ifdef NS
350 if (strcmp(optarg, "ns") == 0)
351 af = AF_NS;
352 else
353#endif
354 if (strcmp(optarg, "ipx") == 0)
355 af = AF_IPX;
356 else if (strcmp(optarg, "inet") == 0)
357 af = AF_INET;
358#ifdef INET6
359 else if (strcmp(optarg, "inet6") == 0)
360 af = AF_INET6;
361#endif /*INET6*/
362#ifdef INET6
363 else if (strcmp(optarg, "pfkey") == 0)
364 af = PF_KEY;
365#endif /*INET6*/
366 else if (strcmp(optarg, "unix") == 0)
367 af = AF_UNIX;
368 else if (strcmp(optarg, "atalk") == 0)
369 af = AF_APPLETALK;
370 else if (strcmp(optarg, "ng") == 0
371 || strcmp(optarg, "netgraph") == 0)
372 af = AF_NETGRAPH;
373#ifdef ISO
374 else if (strcmp(optarg, "iso") == 0)
375 af = AF_ISO;
376#endif
377 else if (strcmp(optarg, "link") == 0)
378 af = AF_LINK;
379 else {
380 errx(1, "%s: unknown address family", optarg);
381 }
382 break;
383 case 'g':
384 gflag = 1;
385 break;
386 case 'I': {
387 char *cp;
388
389 iflag = 1;
390 for (cp = interface = optarg; isalpha(*cp); cp++)
391 continue;
392 unit = atoi(cp);
393 break;
394 }
395 case 'i':
396 iflag = 1;
397 break;
398 case 'L':
399 Lflag = 1;
400 break;
401 case 'M':
402 memf = optarg;
403 break;
404 case 'm':
405 mflag = 1;
406 break;
407 case 'N':
408 nlistf = optarg;
409 break;
410 case 'n':
411 numeric_addr = numeric_port = 1;
412 break;
413 case 'p':
414 if ((tp = name2protox(optarg)) == NULL) {
415 errx(1,
416 "%s: unknown or uninstrumented protocol",
417 optarg);
418 }
419 pflag = 1;
420 break;
421 case 'r':
422 rflag = 1;
423 break;
424 case 's':
425 ++sflag;
426 break;
427 case 'S':
428 numeric_addr = 1;
429 break;
430 case 't':
431 tflag = 1;
432 break;
433 case 'u':
434 af = AF_UNIX;
435 break;
436 case 'W':
437 case 'l':
438 Wflag = 1;
439 break;
440 case 'w':
441 interval = atoi(optarg);
442 iflag = 1;
443 break;
444 case 'z':
445 zflag = 1;
446 break;
447 case '?':
448 default:
449 usage();
450 }
451 argv += optind;
452 argc -= optind;
453
454#define BACKWARD_COMPATIBILITY
455#ifdef BACKWARD_COMPATIBILITY
456 if (*argv) {
457 if (isdigit(**argv)) {
458 interval = atoi(*argv);
459 if (interval <= 0)
460 usage();
461 ++argv;
462 iflag = 1;
463 }
464 if (*argv) {
465 nlistf = *argv;
466 if (*++argv)
467 memf = *argv;
468 }
469 }
470#endif
471
472 /*
473 * Discard setgid privileges if not the running kernel so that bad
474 * guys can't print interesting stuff from kernel memory.
475 */
476 if (nlistf != NULL || memf != NULL)
477 setgid(getgid());
478
479 if (mflag) {
480 if (memf != NULL) {
481 if (kread(0, 0, 0) == 0)
482 mbpr(nl[N_MBSTAT].n_value,
483 nl[N_MBTYPES].n_value,
484 nl[N_NMBCLUSTERS].n_value,
485 nl[N_NMBUFS].n_value);
486 } else
487 mbpr(0, 0, 0, 0);
488 exit(0);
489 }
490#if 0
491 /*
492 * Keep file descriptors open to avoid overhead
493 * of open/close on each call to get* routines.
494 */
495 sethostent(1);
496 setnetent(1);
497#else
498 /*
499 * This does not make sense any more with DNS being default over
500 * the files. Doing a setXXXXent(1) causes a tcp connection to be
501 * used for the queries, which is slower.
502 */
503#endif
504 if (iflag && !sflag) {
505 kread(0, 0, 0);
506 intpr(interval, nl[N_IFNET].n_value, NULL);
507 exit(0);
508 }
509 if (rflag) {
510 kread(0, 0, 0);
511 if (sflag)
512 rt_stats(nl[N_RTSTAT].n_value, nl[N_RTTRASH].n_value);
513 else
514 routepr(nl[N_RTREE].n_value);
515 exit(0);
516 }
517 if (gflag) {
518 kread(0, 0, 0);
519 if (sflag) {
520 if (af == AF_INET || af == AF_UNSPEC)
521 mrt_stats(nl[N_MRTSTAT].n_value);
522#ifdef INET6
523 if (af == AF_INET6 || af == AF_UNSPEC)
524 mrt6_stats(nl[N_MRT6STAT].n_value);
525#endif
526 } else {
527 if (af == AF_INET || af == AF_UNSPEC)
528 mroutepr(nl[N_MFCTABLE].n_value,
529 nl[N_VIFTABLE].n_value);
530#ifdef INET6
531 if (af == AF_INET6 || af == AF_UNSPEC)
532 mroute6pr(nl[N_MF6CTABLE].n_value,
533 nl[N_MIF6TABLE].n_value);
534#endif
535 }
536 exit(0);
537 }
538
539 kread(0, 0, 0);
540 if (tp) {
541 printproto(tp, tp->pr_name);
542 exit(0);
543 }
544 if (af == AF_INET || af == AF_UNSPEC)
545 for (tp = protox; tp->pr_name; tp++)
546 printproto(tp, tp->pr_name);
547#ifdef INET6
548 if (af == AF_INET6 || af == AF_UNSPEC)
549 for (tp = ip6protox; tp->pr_name; tp++)
550 printproto(tp, tp->pr_name);
551#endif /*INET6*/
552#ifdef IPSEC
553 if (af == PF_KEY || af == AF_UNSPEC)
554 for (tp = pfkeyprotox; tp->pr_name; tp++)
555 printproto(tp, tp->pr_name);
556#endif /*IPSEC*/
557 if (af == AF_IPX || af == AF_UNSPEC) {
558 kread(0, 0, 0);
559 for (tp = ipxprotox; tp->pr_name; tp++)
560 printproto(tp, tp->pr_name);
561 }
562 if (af == AF_APPLETALK || af == AF_UNSPEC)
563 for (tp = atalkprotox; tp->pr_name; tp++)
564 printproto(tp, tp->pr_name);
565 if (af == AF_NETGRAPH || af == AF_UNSPEC)
566 for (tp = netgraphprotox; tp->pr_name; tp++)
567 printproto(tp, tp->pr_name);
568#ifdef NS
569 if (af == AF_NS || af == AF_UNSPEC)
570 for (tp = nsprotox; tp->pr_name; tp++)
571 printproto(tp, tp->pr_name);
572#endif
573#ifdef ISO
574 if (af == AF_ISO || af == AF_UNSPEC)
575 for (tp = isoprotox; tp->pr_name; tp++)
576 printproto(tp, tp->pr_name);
577#endif
578 if ((af == AF_UNIX || af == AF_UNSPEC) && !Lflag && !sflag)
579 unixpr();
580 exit(0);
581}
582
583/*
584 * Print out protocol statistics or control blocks (per sflag).
585 * If the interface was not specifically requested, and the symbol
586 * is not in the namelist, ignore this one.
587 */
588static void
1d1731fa 589printproto(register struct protox *tp, char *name)
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590{
591 void (*pr)(u_long, char *, int);
592 u_long off;
593
594 if (sflag) {
595 if (iflag) {
596 if (tp->pr_istats)
597 intpr(interval, nl[N_IFNET].n_value,
598 tp->pr_istats);
599 else if (pflag)
600 printf("%s: no per-interface stats routine\n",
601 tp->pr_name);
602 return;
603 }
604 else {
605 pr = tp->pr_stats;
606 if (!pr) {
607 if (pflag)
608 printf("%s: no stats routine\n",
609 tp->pr_name);
610 return;
611 }
612 off = tp->pr_usesysctl ? tp->pr_usesysctl
613 : nl[tp->pr_sindex].n_value;
614 }
615 } else {
616 pr = tp->pr_cblocks;
617 if (!pr) {
618 if (pflag)
619 printf("%s: no PCB routine\n", tp->pr_name);
620 return;
621 }
622 off = tp->pr_usesysctl ? tp->pr_usesysctl
623 : nl[tp->pr_index].n_value;
624 }
625 if (pr != NULL && (off || af != AF_UNSPEC))
626 (*pr)(off, name, af);
627}
628
629/*
630 * Read kernel memory, return 0 on success.
631 */
632int
633kread(u_long addr, char *buf, int size)
634{
635 if (kvmd == 0) {
636 /*
637 * XXX.
638 */
639 kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf);
640 if (kvmd != NULL) {
641 if (kvm_nlist(kvmd, nl) < 0) {
642 if(nlistf)
643 errx(1, "%s: kvm_nlist: %s", nlistf,
644 kvm_geterr(kvmd));
645 else
646 errx(1, "kvm_nlist: %s", kvm_geterr(kvmd));
647 }
648
649 if (nl[0].n_type == 0) {
650 if(nlistf)
651 errx(1, "%s: no namelist", nlistf);
652 else
653 errx(1, "no namelist");
654 }
655 } else {
656 warnx("kvm not available");
657 return(-1);
658 }
659 }
660 if (!buf)
661 return (0);
662 if (kvm_read(kvmd, addr, buf, size) != size) {
663 warnx("%s", kvm_geterr(kvmd));
664 return (-1);
665 }
666 return (0);
667}
668
669char *
670plural(int n)
671{
672 return (n != 1 ? "s" : "");
673}
674
675char *
676plurales(int n)
677{
678 return (n != 1 ? "es" : "");
679}
680
681/*
682 * Find the protox for the given "well-known" name.
683 */
684static struct protox *
685knownname(char *name)
686{
687 struct protox **tpp, *tp;
688
689 for (tpp = protoprotox; *tpp; tpp++)
690 for (tp = *tpp; tp->pr_name; tp++)
691 if (strcmp(tp->pr_name, name) == 0)
692 return (tp);
693 return (NULL);
694}
695
696/*
697 * Find the protox corresponding to name.
698 */
699static struct protox *
700name2protox(char *name)
701{
702 struct protox *tp;
703 char **alias; /* alias from p->aliases */
704 struct protoent *p;
705
706 /*
707 * Try to find the name in the list of "well-known" names. If that
708 * fails, check if name is an alias for an Internet protocol.
709 */
710 if ((tp = knownname(name)) != NULL)
711 return (tp);
712
713 setprotoent(1); /* make protocol lookup cheaper */
714 while ((p = getprotoent()) != NULL) {
715 /* assert: name not same as p->name */
716 for (alias = p->p_aliases; *alias; alias++)
717 if (strcmp(name, *alias) == 0) {
718 endprotoent();
719 return (knownname(p->p_name));
720 }
721 }
722 endprotoent();
723 return (NULL);
724}
725
726static void
727usage(void)
728{
729 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
730"usage: netstat [-AaLnSW] [-f protocol_family | -p protocol]\n"
731" [-M core] [-N system]",
732" netstat -i | -I interface [-abdnt] [-f address_family]\n"
733" [-M core] [-N system]",
734" netstat -w wait [-I interface] [-d] [-M core] [-N system]",
735" netstat -s [-s] [-z] [-f protocol_family | -p protocol] [-M core]",
736" netstat -i | -I interface -s [-f protocol_family | -p protocol]\n"
737" [-M core] [-N system]",
738" netstat -m [-M core] [-N system]",
739" netstat -r [-AanW] [-f address_family] [-M core] [-N system]",
740" netstat -rs [-s] [-M core] [-N system]",
741" netstat -g [-W] [-f address_family] [-M core] [-N system]",
742" netstat -gs [-s] [-f address_family] [-M core] [-N system]");
743 exit(1);
744}