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