Annotation of src/usr.bin/netstat/main.c, Revision 1.52
1.51 itojun 1: /* $OpenBSD: main.c,v 1.50 2005/01/14 15:00:44 mcbride Exp $ */
1.2 deraadt 2: /* $NetBSD: main.c,v 1.9 1996/05/07 02:55:02 thorpej Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 1988, 1993
6: * Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.36 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #ifndef lint
34: char copyright[] =
35: "@(#) Copyright (c) 1983, 1988, 1993\n\
36: Regents of the University of California. All rights reserved.\n";
37: #endif /* not lint */
38:
39: #ifndef lint
40: #if 0
41: static char sccsid[] = "from: @(#)main.c 8.4 (Berkeley) 3/1/94";
42: #else
1.51 itojun 43: static char *rcsid = "$OpenBSD: main.c,v 1.50 2005/01/14 15:00:44 mcbride Exp $";
1.1 deraadt 44: #endif
45: #endif /* not lint */
46:
47: #include <sys/param.h>
48: #include <sys/file.h>
49: #include <sys/protosw.h>
50: #include <sys/socket.h>
51:
52: #include <netinet/in.h>
53:
54: #include <ctype.h>
55: #include <errno.h>
56: #include <kvm.h>
57: #include <limits.h>
58: #include <netdb.h>
59: #include <nlist.h>
60: #include <paths.h>
61: #include <stdio.h>
62: #include <stdlib.h>
63: #include <string.h>
64: #include <unistd.h>
65: #include "netstat.h"
66:
67: struct nlist nl[] = {
68: #define N_MBSTAT 0
69: { "_mbstat" },
70: #define N_IPSTAT 1
71: { "_ipstat" },
72: #define N_TCBTABLE 2
73: { "_tcbtable" },
74: #define N_TCPSTAT 3
75: { "_tcpstat" },
76: #define N_UDBTABLE 4
77: { "_udbtable" },
78: #define N_UDPSTAT 5
79: { "_udpstat" },
80: #define N_IFNET 6
81: { "_ifnet" },
82: #define N_IMP 7
83: { "_imp_softc" },
84: #define N_ICMPSTAT 8
85: { "_icmpstat" },
86: #define N_RTSTAT 9
87: { "_rtstat" },
88: #define N_UNIXSW 10
89: { "_unixsw" },
90: #define N_IDP 11
91: { "_nspcb"},
92: #define N_IDPSTAT 12
93: { "_idpstat"},
94: #define N_SPPSTAT 13
95: { "_spp_istat"},
96: #define N_NSERR 14
97: { "_ns_errstat"},
98: #define N_CLNPSTAT 15
99: { "_clnp_stat"},
100: #define IN_NOTUSED 16
101: { "_tp_inpcb" },
1.49 henning 102: #define ISO_NOTUSED 16
103: { "_tp_refinfo" },
1.1 deraadt 104: #define N_TPSTAT 18
105: { "_tp_stat" },
106: #define N_ESISSTAT 19
107: { "_esis_stat"},
108: #define N_NIMP 20
109: { "_nimp"},
110: #define N_RTREE 21
111: { "_rt_tables"},
112: #define N_CLTP 22
113: { "_cltb"},
114: #define N_CLTPSTAT 23
115: { "_cltpstat"},
116: #define N_NFILE 24
117: { "_nfile" },
118: #define N_FILE 25
119: { "_file" },
120: #define N_IGMPSTAT 26
121: { "_igmpstat" },
122: #define N_MRTPROTO 27
123: { "_ip_mrtproto" },
124: #define N_MRTSTAT 28
125: { "_mrtstat" },
126: #define N_MFCHASHTBL 29
127: { "_mfchashtbl" },
128: #define N_MFCHASH 30
129: { "_mfchash" },
130: #define N_VIFTABLE 31
131: { "_viftable" },
1.4 mickey 132: #define N_IPX 32
133: { "_ipxcbtable"},
134: #define N_IPXSTAT 33
135: { "_ipxstat"},
136: #define N_SPXSTAT 34
137: { "_spx_istat"},
138: #define N_IPXERR 35
139: { "_ipx_errstat"},
1.8 angelos 140: #define N_AHSTAT 36
141: { "_ahstat"},
142: #define N_ESPSTAT 37
143: { "_espstat"},
144: #define N_IP4STAT 38
1.21 angelos 145: { "_ipipstat"},
1.12 denny 146: #define N_DDPSTAT 39
147: { "_ddpstat"},
148: #define N_DDPCB 40
149: { "_ddpcb"},
1.18 angelos 150: #define N_ETHERIPSTAT 41
151: { "_etheripstat"},
1.19 itojun 152: #define N_IP6STAT 42
153: { "_ip6stat" },
154: #define N_ICMP6STAT 43
155: { "_icmp6stat" },
156: #define N_IPSECSTAT 44
157: { "_ipsecstat" },
158: #define N_IPSEC6STAT 45
159: { "_ipsec6stat" },
160: #define N_PIM6STAT 46
161: { "_pim6stat" },
162: #define N_MRT6PROTO 47
163: { "_ip6_mrtproto" },
164: #define N_MRT6STAT 48
165: { "_mrt6stat" },
166: #define N_MF6CTABLE 49
167: { "_mf6ctable" },
168: #define N_MIF6TABLE 50
169: { "_mif6table" },
1.25 provos 170: #define N_MBPOOL 51
171: { "_mbpool" },
172: #define N_MCLPOOL 52
173: { "_mclpool" },
1.29 mickey 174: #define N_IPCOMPSTAT 53
1.26 jjbg 175: { "_ipcompstat" },
1.32 itojun 176: #define N_RIP6STAT 54
177: { "_rip6stat" },
1.39 mcbride 178: #define N_CARPSTAT 55
179: { "_carpstats" },
1.40 markus 180: #define N_RAWIPTABLE 56
181: { "_rawcbtable" },
182: #define N_RAWIP6TABLE 57
183: { "_rawin6pcbtable" },
1.43 mcbride 184: #define N_PFSYNCSTAT 58
185: { "_pfsyncstats" },
1.50 mcbride 186: #define N_PIMSTAT 59
187: { "_pimstat" },
1.11 millert 188: { ""},
1.1 deraadt 189: };
190:
191: struct protox {
1.38 deraadt 192: u_char pr_index; /* index into nlist of cb head */
193: u_char pr_sindex; /* index into nlist of stat block */
194: u_char pr_wanted; /* 1 if wanted, 0 otherwise */
195: void (*pr_cblocks)(u_long, char *); /* control blocks printing routine */
196: void (*pr_stats)(u_long, char *); /* statistics printing routine */
197: char *pr_name; /* well-known name */
1.1 deraadt 198: } protox[] = {
199: { N_TCBTABLE, N_TCPSTAT, 1, protopr,
200: tcp_stats, "tcp" },
201: { N_UDBTABLE, N_UDPSTAT, 1, protopr,
202: udp_stats, "udp" },
1.40 markus 203: { N_RAWIPTABLE, N_IPSTAT, 1, protopr,
1.1 deraadt 204: ip_stats, "ip" },
205: { -1, N_ICMPSTAT, 1, 0,
206: icmp_stats, "icmp" },
207: { -1, N_IGMPSTAT, 1, 0,
208: igmp_stats, "igmp" },
1.8 angelos 209: { -1, N_AHSTAT, 1, 0,
1.15 angelos 210: ah_stats, "ah" },
1.8 angelos 211: { -1, N_ESPSTAT, 1, 0,
1.15 angelos 212: esp_stats, "esp" },
1.8 angelos 213: { -1, N_IP4STAT, 1, 0,
1.21 angelos 214: ipip_stats, "ipencap" },
1.18 angelos 215: { -1, N_ETHERIPSTAT, 1, 0,
216: etherip_stats,"etherip" },
1.29 mickey 217: { -1, N_IPCOMPSTAT, 1, 0,
218: ipcomp_stats, "ipcomp" },
1.44 deraadt 219: { -1, N_CARPSTAT, 1, 0,
220: carp_stats, "carp" },
221: { -1, N_PFSYNCSTAT, 1, 0,
222: pfsync_stats, "pfsync" },
1.50 mcbride 223: { -1, N_PIMSTAT, 1, 0,
224: pim_stats, "pim" },
1.1 deraadt 225: { -1, -1, 0, 0,
226: 0, 0 }
227: };
228:
1.19 itojun 229: #ifdef INET6
230: struct protox ip6protox[] = {
1.22 itojun 231: { N_TCBTABLE, N_TCPSTAT, 1, ip6protopr,
1.23 itojun 232: 0, "tcp" },
1.22 itojun 233: { N_UDBTABLE, N_UDPSTAT, 1, ip6protopr,
1.23 itojun 234: 0, "udp" },
1.40 markus 235: { N_RAWIP6TABLE,N_IP6STAT, 1, ip6protopr,
1.19 itojun 236: ip6_stats, "ip6" },
237: { -1, N_ICMP6STAT, 1, 0,
238: icmp6_stats, "icmp6" },
239: { -1, N_PIM6STAT, 1, 0,
240: pim6_stats, "pim6" },
1.32 itojun 241: { -1, N_RIP6STAT, 1, 0,
242: rip6_stats, "rip6" },
1.19 itojun 243: { -1, -1, 0, 0,
244: 0, 0 }
245: };
246: #endif
247:
1.4 mickey 248: struct protox ipxprotox[] = {
249: { N_IPX, N_IPXSTAT, 1, ipxprotopr,
250: ipx_stats, "ipx" },
251: { N_IPX, N_SPXSTAT, 1, ipxprotopr,
252: spx_stats, "spx" },
253: { -1, -1, 0, 0,
254: 0, 0 }
255: };
256:
1.1 deraadt 257: struct protox nsprotox[] = {
258: { N_IDP, N_IDPSTAT, 1, nsprotopr,
259: idp_stats, "idp" },
260: { N_IDP, N_SPPSTAT, 1, nsprotopr,
261: spp_stats, "spp" },
262: { -1, N_NSERR, 1, 0,
263: nserr_stats, "ns_err" },
264: { -1, -1, 0, 0,
265: 0, 0 }
266: };
267:
1.12 denny 268: struct protox atalkprotox[] = {
269: { N_DDPCB, N_DDPSTAT, 1, atalkprotopr,
270: ddp_stats, "ddp" },
271: { -1, -1, 0, 0,
272: 0, 0 }
273: };
274:
1.19 itojun 275: #ifndef INET6
1.34 deraadt 276: struct protox *protoprotox[] = {
1.48 henning 277: protox, ipxprotox, nsprotox, atalkprotox, NULL
1.34 deraadt 278: };
1.19 itojun 279: #else
1.34 deraadt 280: struct protox *protoprotox[] = {
1.48 henning 281: protox, ip6protox, ipxprotox, nsprotox, atalkprotox, NULL
1.34 deraadt 282: };
1.19 itojun 283: #endif
1.1 deraadt 284:
1.30 millert 285: static void printproto(struct protox *, char *);
286: static void usage(void);
287: static struct protox *name2protox(char *);
288: static struct protox *knownname(char *);
1.1 deraadt 289:
290: kvm_t *kvmd;
291:
292: int
1.34 deraadt 293: main(int argc, char *argv[])
1.1 deraadt 294: {
295: extern char *optarg;
296: extern int optind;
1.28 mpech 297: struct protoent *p;
298: struct protox *tp = NULL; /* for printing cblocks & stats */
1.1 deraadt 299: int ch;
300: char *nlistf = NULL, *memf = NULL;
301: char buf[_POSIX2_LINE_MAX];
302:
303: af = AF_UNSPEC;
304:
1.46 cedric 305: while ((ch = getopt(argc, argv, "Aabdf:gI:ilM:mN:np:qrSstuvw:")) != -1)
1.31 deraadt 306: switch (ch) {
1.1 deraadt 307: case 'A':
308: Aflag = 1;
309: break;
310: case 'a':
311: aflag = 1;
1.24 camield 312: break;
313: case 'b':
314: bflag = 1;
1.1 deraadt 315: break;
316: case 'd':
317: dflag = 1;
318: break;
319: case 'f':
1.4 mickey 320: if (strcmp(optarg, "inet") == 0)
1.1 deraadt 321: af = AF_INET;
1.19 itojun 322: else if (strcmp(optarg, "inet6") == 0)
323: af = AF_INET6;
1.7 kstailey 324: else if (strcmp(optarg, "local") == 0)
325: af = AF_LOCAL;
1.1 deraadt 326: else if (strcmp(optarg, "unix") == 0)
327: af = AF_UNIX;
1.4 mickey 328: else if (strcmp(optarg, "ipx") == 0)
329: af = AF_IPX;
330: else if (strcmp(optarg, "ns") == 0)
331: af = AF_NS;
1.10 angelos 332: else if (strcmp(optarg, "encap") == 0)
1.16 angelos 333: af = PF_KEY;
1.12 denny 334: else if (strcmp(optarg, "atalk") == 0)
335: af = AF_APPLETALK;
1.1 deraadt 336: else {
337: (void)fprintf(stderr,
338: "%s: %s: unknown address family\n",
1.2 deraadt 339: __progname, optarg);
1.1 deraadt 340: exit(1);
341: }
342: break;
343: case 'g':
344: gflag = 1;
345: break;
1.2 deraadt 346: case 'I':
1.1 deraadt 347: iflag = 1;
1.2 deraadt 348: interface = optarg;
1.1 deraadt 349: break;
350: case 'i':
351: iflag = 1;
352: break;
1.19 itojun 353: case 'l':
354: lflag = 1;
355: break;
1.1 deraadt 356: case 'M':
357: memf = optarg;
358: break;
359: case 'm':
360: mflag = 1;
361: break;
362: case 'N':
363: nlistf = optarg;
364: break;
365: case 'n':
366: nflag = 1;
367: break;
368: case 'p':
369: if ((tp = name2protox(optarg)) == NULL) {
370: (void)fprintf(stderr,
1.42 jmc 371: "%s: %s: unknown protocol\n",
1.2 deraadt 372: __progname, optarg);
1.1 deraadt 373: exit(1);
374: }
375: pflag = 1;
1.27 brian 376: break;
377: case 'q':
378: qflag = 1;
1.1 deraadt 379: break;
380: case 'r':
381: rflag = 1;
1.46 cedric 382: break;
383: case 'S':
384: Sflag = 1;
1.1 deraadt 385: break;
386: case 's':
387: ++sflag;
388: break;
389: case 't':
390: tflag = 1;
391: break;
392: case 'u':
393: af = AF_UNIX;
1.13 peter 394: break;
395: case 'v':
396: vflag = 1;
1.1 deraadt 397: break;
398: case 'w':
399: interval = atoi(optarg);
400: iflag = 1;
401: break;
402: case '?':
403: default:
404: usage();
405: }
406: argv += optind;
407: argc -= optind;
408:
1.33 deraadt 409: /*
410: * Discard setgid privileges if not the running kernel so that bad
411: * guys can't print interesting stuff from kernel memory.
412: */
413: if (nlistf != NULL || memf != NULL) {
414: setegid(getgid());
415: setgid(getgid());
416: }
417:
418: if ((kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY,
419: buf)) == NULL) {
420: fprintf(stderr, "%s: kvm_open: %s\n", __progname, buf);
421: exit(1);
422: }
423: setegid(getgid());
424: setgid(getgid());
425:
1.1 deraadt 426: #define BACKWARD_COMPATIBILITY
427: #ifdef BACKWARD_COMPATIBILITY
428: if (*argv) {
429: if (isdigit(**argv)) {
430: interval = atoi(*argv);
431: if (interval <= 0)
432: usage();
433: ++argv;
434: iflag = 1;
435: }
436: if (*argv) {
437: nlistf = *argv;
438: if (*++argv)
439: memf = *argv;
440: }
441: }
442: #endif
1.14 deraadt 443:
1.1 deraadt 444: if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) {
445: if (nlistf)
1.2 deraadt 446: fprintf(stderr, "%s: %s: no namelist\n", __progname,
447: nlistf);
1.1 deraadt 448: else
1.2 deraadt 449: fprintf(stderr, "%s: no namelist\n", __progname);
1.1 deraadt 450: exit(1);
451: }
452: if (mflag) {
1.25 provos 453: mbpr(nl[N_MBSTAT].n_value, nl[N_MBPOOL].n_value,
454: nl[N_MCLPOOL].n_value);
1.1 deraadt 455: exit(0);
456: }
457: if (pflag) {
1.45 markus 458: printproto(tp, tp->pr_name);
1.1 deraadt 459: exit(0);
460: }
461: /*
462: * Keep file descriptors open to avoid overhead
463: * of open/close on each call to get* routines.
464: */
465: sethostent(1);
466: setnetent(1);
467: if (iflag) {
468: intpr(interval, nl[N_IFNET].n_value);
469: exit(0);
470: }
471: if (rflag) {
472: if (sflag)
473: rt_stats(nl[N_RTSTAT].n_value);
474: else
475: routepr(nl[N_RTREE].n_value);
476: exit(0);
477: }
478: if (gflag) {
1.19 itojun 479: if (sflag) {
480: if (af == AF_INET || af == AF_UNSPEC)
481: mrt_stats(nl[N_MRTPROTO].n_value,
482: nl[N_MRTSTAT].n_value);
483: #ifdef INET6
484: if (af == AF_INET6 || af == AF_UNSPEC)
485: mrt6_stats(nl[N_MRT6PROTO].n_value,
486: nl[N_MRT6STAT].n_value);
487: #endif
488: }
489: else {
490: if (af == AF_INET || af == AF_UNSPEC)
491: mroutepr(nl[N_MRTPROTO].n_value,
492: nl[N_MFCHASHTBL].n_value,
493: nl[N_MFCHASH].n_value,
494: nl[N_VIFTABLE].n_value);
495: #ifdef INET6
496: if (af == AF_INET6 || af == AF_UNSPEC)
497: mroute6pr(nl[N_MRT6PROTO].n_value,
498: nl[N_MF6CTABLE].n_value,
499: nl[N_MIF6TABLE].n_value);
500: #endif
501: }
1.1 deraadt 502: exit(0);
503: }
504: if (af == AF_INET || af == AF_UNSPEC) {
505: setprotoent(1);
506: setservent(1);
507: /* ugh, this is O(MN) ... why do we do this? */
1.11 millert 508: while ((p = getprotoent())) {
1.1 deraadt 509: for (tp = protox; tp->pr_name; tp++)
510: if (strcmp(tp->pr_name, p->p_name) == 0)
511: break;
512: if (tp->pr_name == 0 || tp->pr_wanted == 0)
513: continue;
514: printproto(tp, p->p_name);
515: }
516: endprotoent();
517: }
1.19 itojun 518: #ifdef INET6
519: if (af == AF_INET6 || af == AF_UNSPEC)
520: for (tp = ip6protox; tp->pr_name; tp++)
521: printproto(tp, tp->pr_name);
522: #endif
1.4 mickey 523: if (af == AF_IPX || af == AF_UNSPEC)
524: for (tp = ipxprotox; tp->pr_name; tp++)
525: printproto(tp, tp->pr_name);
1.1 deraadt 526: if (af == AF_NS || af == AF_UNSPEC)
527: for (tp = nsprotox; tp->pr_name; tp++)
528: printproto(tp, tp->pr_name);
529: if ((af == AF_UNIX || af == AF_UNSPEC) && !sflag)
530: unixpr(nl[N_UNIXSW].n_value);
1.12 denny 531: if (af == AF_APPLETALK || af == AF_UNSPEC)
532: for (tp = atalkprotox; tp->pr_name; tp++)
533: printproto(tp, tp->pr_name);
1.1 deraadt 534: exit(0);
535: }
536:
537: /*
538: * Print out protocol statistics or control blocks (per sflag).
539: * If the interface was not specifically requested, and the symbol
540: * is not in the namelist, ignore this one.
541: */
542: static void
1.34 deraadt 543: printproto(struct protox *tp, char *name)
1.1 deraadt 544: {
1.38 deraadt 545: void (*pr)(u_long, char *);
1.35 dhartmei 546: u_char i;
1.1 deraadt 547:
548: if (sflag) {
549: pr = tp->pr_stats;
1.35 dhartmei 550: i = tp->pr_sindex;
1.1 deraadt 551: } else {
552: pr = tp->pr_cblocks;
1.35 dhartmei 553: i = tp->pr_index;
1.1 deraadt 554: }
1.35 dhartmei 555: if (pr != NULL && i < sizeof(nl) / sizeof(nl[0]) &&
556: (nl[i].n_value || af != AF_UNSPEC))
557: (*pr)(nl[i].n_value, name);
1.1 deraadt 558: }
559:
560: /*
561: * Read kernel memory, return 0 on success.
562: */
563: int
1.34 deraadt 564: kread(u_long addr, char *buf, int size)
1.1 deraadt 565: {
566:
567: if (kvm_read(kvmd, addr, buf, size) != size) {
1.2 deraadt 568: (void)fprintf(stderr, "%s: %s\n", __progname,
1.1 deraadt 569: kvm_geterr(kvmd));
570: return (-1);
571: }
572: return (0);
573: }
574:
575: char *
1.34 deraadt 576: plural(int n)
1.1 deraadt 577: {
578: return (n != 1 ? "s" : "");
579: }
580:
581: char *
1.34 deraadt 582: plurales(int n)
1.1 deraadt 583: {
584: return (n != 1 ? "es" : "");
585: }
586:
587: /*
588: * Find the protox for the given "well-known" name.
589: */
590: static struct protox *
1.34 deraadt 591: knownname(char *name)
1.1 deraadt 592: {
593: struct protox **tpp, *tp;
594:
595: for (tpp = protoprotox; *tpp; tpp++)
596: for (tp = *tpp; tp->pr_name; tp++)
597: if (strcmp(tp->pr_name, name) == 0)
598: return (tp);
599: return (NULL);
600: }
601:
602: /*
603: * Find the protox corresponding to name.
604: */
605: static struct protox *
1.34 deraadt 606: name2protox(char *name)
1.1 deraadt 607: {
608: struct protox *tp;
609: char **alias; /* alias from p->aliases */
610: struct protoent *p;
611:
612: /*
613: * Try to find the name in the list of "well-known" names. If that
614: * fails, check if name is an alias for an Internet protocol.
615: */
1.11 millert 616: if ((tp = knownname(name)))
1.1 deraadt 617: return (tp);
618:
619: setprotoent(1); /* make protocol lookup cheaper */
1.11 millert 620: while ((p = getprotoent())) {
1.1 deraadt 621: /* assert: name not same as p->name */
622: for (alias = p->p_aliases; *alias; alias++)
623: if (strcmp(name, *alias) == 0) {
624: endprotoent();
625: return (knownname(p->p_name));
626: }
627: }
628: endprotoent();
629: return (NULL);
630: }
631:
632: static void
1.34 deraadt 633: usage(void)
1.1 deraadt 634: {
635: (void)fprintf(stderr,
1.2 deraadt 636: "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", __progname);
1.1 deraadt 637: (void)fprintf(stderr,
1.47 jmc 638: " %s [-bdgilmnqrSstu] [-f address_family] [-M core] [-N system]\n", __progname);
1.1 deraadt 639: (void)fprintf(stderr,
1.37 jmc 640: " %s [-bdn] [-I interface] [-M core] [-N system] [-w wait]\n", __progname);
1.1 deraadt 641: (void)fprintf(stderr,
1.47 jmc 642: " %s [-s] [-M core] [-N system] [-p protocol]\n", __progname);
1.37 jmc 643: (void)fprintf(stderr,
1.41 jmc 644: " %s [-a] [-f address_family] [-i | -I interface]\n", __progname);
1.1 deraadt 645: exit(1);
646: }
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