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1.32 ! itojun 1: /* $OpenBSD: main.c,v 1.31 2002/05/27 01:50:36 deraadt 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.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: char copyright[] =
39: "@(#) Copyright (c) 1983, 1988, 1993\n\
40: Regents of the University of California. All rights reserved.\n";
41: #endif /* not lint */
42:
43: #ifndef lint
44: #if 0
45: static char sccsid[] = "from: @(#)main.c 8.4 (Berkeley) 3/1/94";
46: #else
1.32 ! itojun 47: static char *rcsid = "$OpenBSD: main.c,v 1.31 2002/05/27 01:50:36 deraadt Exp $";
1.1 deraadt 48: #endif
49: #endif /* not lint */
50:
51: #include <sys/param.h>
52: #include <sys/file.h>
53: #include <sys/protosw.h>
54: #include <sys/socket.h>
55:
56: #include <netinet/in.h>
57:
58: #include <ctype.h>
59: #include <errno.h>
60: #include <kvm.h>
61: #include <limits.h>
62: #include <netdb.h>
63: #include <nlist.h>
64: #include <paths.h>
65: #include <stdio.h>
66: #include <stdlib.h>
67: #include <string.h>
68: #include <unistd.h>
69: #include "netstat.h"
70:
71: struct nlist nl[] = {
72: #define N_MBSTAT 0
73: { "_mbstat" },
74: #define N_IPSTAT 1
75: { "_ipstat" },
76: #define N_TCBTABLE 2
77: { "_tcbtable" },
78: #define N_TCPSTAT 3
79: { "_tcpstat" },
80: #define N_UDBTABLE 4
81: { "_udbtable" },
82: #define N_UDPSTAT 5
83: { "_udpstat" },
84: #define N_IFNET 6
85: { "_ifnet" },
86: #define N_IMP 7
87: { "_imp_softc" },
88: #define N_ICMPSTAT 8
89: { "_icmpstat" },
90: #define N_RTSTAT 9
91: { "_rtstat" },
92: #define N_UNIXSW 10
93: { "_unixsw" },
94: #define N_IDP 11
95: { "_nspcb"},
96: #define N_IDPSTAT 12
97: { "_idpstat"},
98: #define N_SPPSTAT 13
99: { "_spp_istat"},
100: #define N_NSERR 14
101: { "_ns_errstat"},
102: #define N_CLNPSTAT 15
103: { "_clnp_stat"},
104: #define IN_NOTUSED 16
105: { "_tp_inpcb" },
106: #define ISO_TP 17
107: { "_tp_refinfo" },
108: #define N_TPSTAT 18
109: { "_tp_stat" },
110: #define N_ESISSTAT 19
111: { "_esis_stat"},
112: #define N_NIMP 20
113: { "_nimp"},
114: #define N_RTREE 21
115: { "_rt_tables"},
116: #define N_CLTP 22
117: { "_cltb"},
118: #define N_CLTPSTAT 23
119: { "_cltpstat"},
120: #define N_NFILE 24
121: { "_nfile" },
122: #define N_FILE 25
123: { "_file" },
124: #define N_IGMPSTAT 26
125: { "_igmpstat" },
126: #define N_MRTPROTO 27
127: { "_ip_mrtproto" },
128: #define N_MRTSTAT 28
129: { "_mrtstat" },
130: #define N_MFCHASHTBL 29
131: { "_mfchashtbl" },
132: #define N_MFCHASH 30
133: { "_mfchash" },
134: #define N_VIFTABLE 31
135: { "_viftable" },
1.4 mickey 136: #define N_IPX 32
137: { "_ipxcbtable"},
138: #define N_IPXSTAT 33
139: { "_ipxstat"},
140: #define N_SPXSTAT 34
141: { "_spx_istat"},
142: #define N_IPXERR 35
143: { "_ipx_errstat"},
1.8 angelos 144: #define N_AHSTAT 36
145: { "_ahstat"},
146: #define N_ESPSTAT 37
147: { "_espstat"},
148: #define N_IP4STAT 38
1.21 angelos 149: { "_ipipstat"},
1.12 denny 150: #define N_DDPSTAT 39
151: { "_ddpstat"},
152: #define N_DDPCB 40
153: { "_ddpcb"},
1.18 angelos 154: #define N_ETHERIPSTAT 41
155: { "_etheripstat"},
1.19 itojun 156: #define N_IP6STAT 42
157: { "_ip6stat" },
158: #define N_ICMP6STAT 43
159: { "_icmp6stat" },
160: #define N_IPSECSTAT 44
161: { "_ipsecstat" },
162: #define N_IPSEC6STAT 45
163: { "_ipsec6stat" },
164: #define N_PIM6STAT 46
165: { "_pim6stat" },
166: #define N_MRT6PROTO 47
167: { "_ip6_mrtproto" },
168: #define N_MRT6STAT 48
169: { "_mrt6stat" },
170: #define N_MF6CTABLE 49
171: { "_mf6ctable" },
172: #define N_MIF6TABLE 50
173: { "_mif6table" },
1.25 provos 174: #define N_MBPOOL 51
175: { "_mbpool" },
176: #define N_MCLPOOL 52
177: { "_mclpool" },
1.29 mickey 178: #define N_IPCOMPSTAT 53
1.26 jjbg 179: { "_ipcompstat" },
1.32 ! itojun 180: #define N_RIP6STAT 54
! 181: { "_rip6stat" },
1.11 millert 182: { ""},
1.1 deraadt 183: };
184:
185: struct protox {
186: u_char pr_index; /* index into nlist of cb head */
187: u_char pr_sindex; /* index into nlist of stat block */
188: u_char pr_wanted; /* 1 if wanted, 0 otherwise */
189: void (*pr_cblocks)(); /* control blocks printing routine */
190: void (*pr_stats)(); /* statistics printing routine */
191: char *pr_name; /* well-known name */
192: } protox[] = {
193: { N_TCBTABLE, N_TCPSTAT, 1, protopr,
194: tcp_stats, "tcp" },
195: { N_UDBTABLE, N_UDPSTAT, 1, protopr,
196: udp_stats, "udp" },
197: { -1, N_IPSTAT, 1, 0,
198: ip_stats, "ip" },
199: { -1, N_ICMPSTAT, 1, 0,
200: icmp_stats, "icmp" },
201: { -1, N_IGMPSTAT, 1, 0,
202: igmp_stats, "igmp" },
1.8 angelos 203: { -1, N_AHSTAT, 1, 0,
1.15 angelos 204: ah_stats, "ah" },
1.8 angelos 205: { -1, N_ESPSTAT, 1, 0,
1.15 angelos 206: esp_stats, "esp" },
1.8 angelos 207: { -1, N_IP4STAT, 1, 0,
1.21 angelos 208: ipip_stats, "ipencap" },
1.18 angelos 209: { -1, N_ETHERIPSTAT, 1, 0,
210: etherip_stats,"etherip" },
1.29 mickey 211: { -1, N_IPCOMPSTAT, 1, 0,
212: ipcomp_stats, "ipcomp" },
1.1 deraadt 213: { -1, -1, 0, 0,
214: 0, 0 }
215: };
216:
1.19 itojun 217: #ifdef INET6
218: struct protox ip6protox[] = {
1.22 itojun 219: { N_TCBTABLE, N_TCPSTAT, 1, ip6protopr,
1.23 itojun 220: 0, "tcp" },
1.22 itojun 221: { N_UDBTABLE, N_UDPSTAT, 1, ip6protopr,
1.23 itojun 222: 0, "udp" },
1.19 itojun 223: { -1, N_IP6STAT, 1, 0,
224: ip6_stats, "ip6" },
225: { -1, N_ICMP6STAT, 1, 0,
226: icmp6_stats, "icmp6" },
227: { -1, N_PIM6STAT, 1, 0,
228: pim6_stats, "pim6" },
1.32 ! itojun 229: { -1, N_RIP6STAT, 1, 0,
! 230: rip6_stats, "rip6" },
1.19 itojun 231: { -1, -1, 0, 0,
232: 0, 0 }
233: };
234: #endif
235:
1.4 mickey 236: struct protox ipxprotox[] = {
237: { N_IPX, N_IPXSTAT, 1, ipxprotopr,
238: ipx_stats, "ipx" },
239: { N_IPX, N_SPXSTAT, 1, ipxprotopr,
240: spx_stats, "spx" },
241: { -1, -1, 0, 0,
242: 0, 0 }
243: };
244:
1.1 deraadt 245: struct protox nsprotox[] = {
246: { N_IDP, N_IDPSTAT, 1, nsprotopr,
247: idp_stats, "idp" },
248: { N_IDP, N_SPPSTAT, 1, nsprotopr,
249: spp_stats, "spp" },
250: { -1, N_NSERR, 1, 0,
251: nserr_stats, "ns_err" },
252: { -1, -1, 0, 0,
253: 0, 0 }
254: };
255:
256: struct protox isoprotox[] = {
257: { ISO_TP, N_TPSTAT, 1, iso_protopr,
258: tp_stats, "tp" },
259: { N_CLTP, N_CLTPSTAT, 1, iso_protopr,
260: cltp_stats, "cltp" },
261: { -1, N_CLNPSTAT, 1, 0,
262: clnp_stats, "clnp"},
263: { -1, N_ESISSTAT, 1, 0,
264: esis_stats, "esis"},
265: { -1, -1, 0, 0,
266: 0, 0 }
267: };
268:
1.12 denny 269: struct protox atalkprotox[] = {
270: { N_DDPCB, N_DDPSTAT, 1, atalkprotopr,
271: ddp_stats, "ddp" },
272: { -1, -1, 0, 0,
273: 0, 0 }
274: };
275:
1.19 itojun 276: #ifndef INET6
1.12 denny 277: struct protox *protoprotox[] = { protox, ipxprotox, nsprotox, isoprotox, atalkprotox, NULL };
1.19 itojun 278: #else
279: struct protox *protoprotox[] = { protox, ip6protox, ipxprotox, nsprotox, isoprotox, atalkprotox, NULL };
280: #endif
1.1 deraadt 281:
1.30 millert 282: static void printproto(struct protox *, char *);
283: static void usage(void);
284: static struct protox *name2protox(char *);
285: static struct protox *knownname(char *);
1.1 deraadt 286:
287: kvm_t *kvmd;
288:
289: int
290: main(argc, argv)
291: int argc;
292: char *argv[];
293: {
294: extern char *optarg;
295: extern int optind;
1.28 mpech 296: struct protoent *p;
297: struct protox *tp = NULL; /* for printing cblocks & stats */
1.1 deraadt 298: int ch;
299: char *nlistf = NULL, *memf = NULL;
300: char buf[_POSIX2_LINE_MAX];
301:
302: af = AF_UNSPEC;
303:
1.27 brian 304: while ((ch = getopt(argc, argv, "Aabdf:gI:ilM:mN:np:qrstuvw:")) != -1)
1.31 deraadt 305: switch (ch) {
1.1 deraadt 306: case 'A':
307: Aflag = 1;
308: break;
309: case 'a':
310: aflag = 1;
1.24 camield 311: break;
312: case 'b':
313: bflag = 1;
1.1 deraadt 314: break;
315: case 'd':
316: dflag = 1;
317: break;
318: case 'f':
1.4 mickey 319: if (strcmp(optarg, "inet") == 0)
1.1 deraadt 320: af = AF_INET;
1.19 itojun 321: else if (strcmp(optarg, "inet6") == 0)
322: af = AF_INET6;
1.7 kstailey 323: else if (strcmp(optarg, "local") == 0)
324: af = AF_LOCAL;
1.1 deraadt 325: else if (strcmp(optarg, "unix") == 0)
326: af = AF_UNIX;
1.4 mickey 327: else if (strcmp(optarg, "ipx") == 0)
328: af = AF_IPX;
329: else if (strcmp(optarg, "ns") == 0)
330: af = AF_NS;
1.1 deraadt 331: else if (strcmp(optarg, "iso") == 0)
332: af = AF_ISO;
1.10 angelos 333: else if (strcmp(optarg, "encap") == 0)
1.16 angelos 334: af = PF_KEY;
1.12 denny 335: else if (strcmp(optarg, "atalk") == 0)
336: af = AF_APPLETALK;
1.1 deraadt 337: else {
338: (void)fprintf(stderr,
339: "%s: %s: unknown address family\n",
1.2 deraadt 340: __progname, optarg);
1.1 deraadt 341: exit(1);
342: }
343: break;
344: case 'g':
345: gflag = 1;
346: break;
1.2 deraadt 347: case 'I':
1.1 deraadt 348: iflag = 1;
1.2 deraadt 349: interface = optarg;
1.1 deraadt 350: break;
351: case 'i':
352: iflag = 1;
353: break;
1.19 itojun 354: case 'l':
355: lflag = 1;
356: break;
1.1 deraadt 357: case 'M':
358: memf = optarg;
359: break;
360: case 'm':
361: mflag = 1;
362: break;
363: case 'N':
364: nlistf = optarg;
365: break;
366: case 'n':
367: nflag = 1;
368: break;
369: case 'p':
370: if ((tp = name2protox(optarg)) == NULL) {
371: (void)fprintf(stderr,
372: "%s: %s: unknown or uninstrumented protocol\n",
1.2 deraadt 373: __progname, optarg);
1.1 deraadt 374: exit(1);
375: }
376: pflag = 1;
1.27 brian 377: break;
378: case 'q':
379: qflag = 1;
1.1 deraadt 380: break;
381: case 'r':
382: rflag = 1;
383: break;
384: case 's':
385: ++sflag;
386: break;
387: case 't':
388: tflag = 1;
389: break;
390: case 'u':
391: af = AF_UNIX;
1.13 peter 392: break;
393: case 'v':
394: vflag = 1;
1.1 deraadt 395: break;
396: case 'w':
397: interval = atoi(optarg);
398: iflag = 1;
399: break;
400: case '?':
401: default:
402: usage();
403: }
404: argv += optind;
405: argc -= optind;
406:
407: #define BACKWARD_COMPATIBILITY
408: #ifdef BACKWARD_COMPATIBILITY
409: if (*argv) {
410: if (isdigit(**argv)) {
411: interval = atoi(*argv);
412: if (interval <= 0)
413: usage();
414: ++argv;
415: iflag = 1;
416: }
417: if (*argv) {
418: nlistf = *argv;
419: if (*++argv)
420: memf = *argv;
421: }
422: }
423: #endif
424:
425: /*
426: * Discard setgid privileges if not the running kernel so that bad
427: * guys can't print interesting stuff from kernel memory.
428: */
1.5 tholo 429: if (nlistf != NULL || memf != NULL) {
430: setegid(getgid());
1.1 deraadt 431: setgid(getgid());
1.5 tholo 432: }
1.1 deraadt 433:
1.2 deraadt 434: if ((kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY,
435: buf)) == NULL) {
436: fprintf(stderr, "%s: kvm_open: %s\n", __progname, buf);
1.1 deraadt 437: exit(1);
438: }
1.14 deraadt 439: setegid(getgid());
440: setgid(getgid());
441:
1.1 deraadt 442: if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) {
443: if (nlistf)
1.2 deraadt 444: fprintf(stderr, "%s: %s: no namelist\n", __progname,
445: nlistf);
1.1 deraadt 446: else
1.2 deraadt 447: fprintf(stderr, "%s: no namelist\n", __progname);
1.1 deraadt 448: exit(1);
449: }
450: if (mflag) {
1.25 provos 451: mbpr(nl[N_MBSTAT].n_value, nl[N_MBPOOL].n_value,
452: nl[N_MCLPOOL].n_value);
1.1 deraadt 453: exit(0);
454: }
455: if (pflag) {
456: if (tp->pr_stats)
457: (*tp->pr_stats)(nl[tp->pr_sindex].n_value,
458: tp->pr_name);
459: else
460: printf("%s: no stats routine\n", tp->pr_name);
461: exit(0);
462: }
463: /*
464: * Keep file descriptors open to avoid overhead
465: * of open/close on each call to get* routines.
466: */
467: sethostent(1);
468: setnetent(1);
469: if (iflag) {
470: intpr(interval, nl[N_IFNET].n_value);
471: exit(0);
472: }
473: if (rflag) {
474: if (sflag)
475: rt_stats(nl[N_RTSTAT].n_value);
476: else
477: routepr(nl[N_RTREE].n_value);
478: exit(0);
479: }
480: if (gflag) {
1.19 itojun 481: if (sflag) {
482: if (af == AF_INET || af == AF_UNSPEC)
483: mrt_stats(nl[N_MRTPROTO].n_value,
484: nl[N_MRTSTAT].n_value);
485: #ifdef INET6
486: if (af == AF_INET6 || af == AF_UNSPEC)
487: mrt6_stats(nl[N_MRT6PROTO].n_value,
488: nl[N_MRT6STAT].n_value);
489: #endif
490: }
491: else {
492: if (af == AF_INET || af == AF_UNSPEC)
493: mroutepr(nl[N_MRTPROTO].n_value,
494: nl[N_MFCHASHTBL].n_value,
495: nl[N_MFCHASH].n_value,
496: nl[N_VIFTABLE].n_value);
497: #ifdef INET6
498: if (af == AF_INET6 || af == AF_UNSPEC)
499: mroute6pr(nl[N_MRT6PROTO].n_value,
500: nl[N_MF6CTABLE].n_value,
501: nl[N_MIF6TABLE].n_value);
502: #endif
503: }
1.1 deraadt 504: exit(0);
505: }
506: if (af == AF_INET || af == AF_UNSPEC) {
507: setprotoent(1);
508: setservent(1);
509: /* ugh, this is O(MN) ... why do we do this? */
1.11 millert 510: while ((p = getprotoent())) {
1.1 deraadt 511: for (tp = protox; tp->pr_name; tp++)
512: if (strcmp(tp->pr_name, p->p_name) == 0)
513: break;
514: if (tp->pr_name == 0 || tp->pr_wanted == 0)
515: continue;
516: printproto(tp, p->p_name);
517: }
518: endprotoent();
519: }
1.19 itojun 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);
524: #endif
1.4 mickey 525: if (af == AF_IPX || af == AF_UNSPEC)
526: for (tp = ipxprotox; tp->pr_name; tp++)
527: printproto(tp, tp->pr_name);
1.1 deraadt 528: if (af == AF_NS || af == AF_UNSPEC)
529: for (tp = nsprotox; tp->pr_name; tp++)
530: printproto(tp, tp->pr_name);
531: if (af == AF_ISO || af == AF_UNSPEC)
532: for (tp = isoprotox; tp->pr_name; tp++)
533: printproto(tp, tp->pr_name);
534: if ((af == AF_UNIX || af == AF_UNSPEC) && !sflag)
535: unixpr(nl[N_UNIXSW].n_value);
1.12 denny 536: if (af == AF_APPLETALK || af == AF_UNSPEC)
537: for (tp = atalkprotox; tp->pr_name; tp++)
538: printproto(tp, tp->pr_name);
1.1 deraadt 539: exit(0);
540: }
541:
542: /*
543: * Print out protocol statistics or control blocks (per sflag).
544: * If the interface was not specifically requested, and the symbol
545: * is not in the namelist, ignore this one.
546: */
547: static void
548: printproto(tp, name)
1.28 mpech 549: struct protox *tp;
1.1 deraadt 550: char *name;
551: {
552: void (*pr)();
553: u_long off;
554:
555: if (sflag) {
556: pr = tp->pr_stats;
557: off = nl[tp->pr_sindex].n_value;
558: } else {
559: pr = tp->pr_cblocks;
560: off = nl[tp->pr_index].n_value;
561: }
562: if (pr != NULL && (off || af != AF_UNSPEC))
563: (*pr)(off, name);
564: }
565:
566: /*
567: * Read kernel memory, return 0 on success.
568: */
569: int
570: kread(addr, buf, size)
571: u_long addr;
572: char *buf;
573: int size;
574: {
575:
576: if (kvm_read(kvmd, addr, buf, size) != size) {
1.2 deraadt 577: (void)fprintf(stderr, "%s: %s\n", __progname,
1.1 deraadt 578: kvm_geterr(kvmd));
579: return (-1);
580: }
581: return (0);
582: }
583:
584: char *
585: plural(n)
586: int n;
587: {
588: return (n != 1 ? "s" : "");
589: }
590:
591: char *
592: plurales(n)
593: int n;
594: {
595: return (n != 1 ? "es" : "");
596: }
597:
598: /*
599: * Find the protox for the given "well-known" name.
600: */
601: static struct protox *
602: knownname(name)
603: char *name;
604: {
605: struct protox **tpp, *tp;
606:
607: for (tpp = protoprotox; *tpp; tpp++)
608: for (tp = *tpp; tp->pr_name; tp++)
609: if (strcmp(tp->pr_name, name) == 0)
610: return (tp);
611: return (NULL);
612: }
613:
614: /*
615: * Find the protox corresponding to name.
616: */
617: static struct protox *
618: name2protox(name)
619: char *name;
620: {
621: struct protox *tp;
622: char **alias; /* alias from p->aliases */
623: struct protoent *p;
624:
625: /*
626: * Try to find the name in the list of "well-known" names. If that
627: * fails, check if name is an alias for an Internet protocol.
628: */
1.11 millert 629: if ((tp = knownname(name)))
1.1 deraadt 630: return (tp);
631:
632: setprotoent(1); /* make protocol lookup cheaper */
1.11 millert 633: while ((p = getprotoent())) {
1.1 deraadt 634: /* assert: name not same as p->name */
635: for (alias = p->p_aliases; *alias; alias++)
636: if (strcmp(name, *alias) == 0) {
637: endprotoent();
638: return (knownname(p->p_name));
639: }
640: }
641: endprotoent();
642: return (NULL);
643: }
644:
645: static void
646: usage()
647: {
648: (void)fprintf(stderr,
1.2 deraadt 649: "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", __progname);
1.1 deraadt 650: (void)fprintf(stderr,
1.17 d 651: " %s [-gimnrs] [-f address_family] [-M core] [-N system]\n", __progname);
1.1 deraadt 652: (void)fprintf(stderr,
1.2 deraadt 653: " %s [-n] [-I interface] [-M core] [-N system] [-w wait]\n", __progname);
1.1 deraadt 654: (void)fprintf(stderr,
1.2 deraadt 655: " %s [-M core] [-N system] [-p protocol]\n", __progname);
1.1 deraadt 656: exit(1);
657: }