Commit | Line | Data |
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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1983, 1988 Regents of the University of California. | |
3 | * 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. | |
32 | */ | |
33 | ||
34 | #ifndef lint | |
49f80972 GW |
35 | /* From: static char sccsid[] = "@(#)route.c 5.20 (Berkeley) 11/29/90"; */ |
36 | static const char route_c_rcsid[] = | |
9758c1e7 | 37 | "$Id: route.c,v 1.8 1993/11/17 23:02:57 wollman Exp $"; |
15637ed4 RG |
38 | #endif /* not lint */ |
39 | ||
40 | #include <sys/param.h> | |
41 | #include <sys/socket.h> | |
42 | #include <sys/mbuf.h> | |
43 | ||
44 | #include <net/if.h> | |
45 | #define KERNEL | |
46 | #include <net/route.h> | |
47 | #undef KERNEL | |
48 | #include <netinet/in.h> | |
49 | ||
50 | #ifdef NS | |
51 | #include <netns/ns.h> | |
52 | #endif | |
53 | ||
54 | #include <netdb.h> | |
55 | #include <sys/kinfo.h> | |
56 | ||
57 | #include <stdio.h> | |
58 | #include <string.h> | |
a2a107a3 | 59 | #include <stdlib.h> |
15637ed4 RG |
60 | |
61 | extern int nflag, aflag, Aflag, af; | |
62 | int do_rtent; | |
63 | extern char *routename(), *netname(), *plural(); | |
64 | #ifdef NS | |
10948f21 | 65 | extern char *ns_print(); |
15637ed4 | 66 | #endif |
a2a107a3 | 67 | |
15637ed4 RG |
68 | #define kget(p, d) \ |
69 | (kvm_read((off_t)(p), (char *)&(d), sizeof (d))) | |
70 | ||
71 | /* | |
72 | * Definitions for showing gateway flags. | |
73 | */ | |
74 | struct bits { | |
75 | short b_mask; | |
76 | char b_val; | |
77 | } bits[] = { | |
78 | { RTF_UP, 'U' }, | |
79 | { RTF_GATEWAY, 'G' }, | |
80 | { RTF_HOST, 'H' }, | |
81 | { RTF_DYNAMIC, 'D' }, | |
82 | { RTF_MODIFIED, 'M' }, | |
83 | { RTF_CLONING, 'C' }, | |
84 | { RTF_XRESOLVE, 'X' }, | |
85 | { RTF_LLINFO, 'L' }, | |
86 | { RTF_REJECT, 'R' }, | |
a2a107a3 GW |
87 | { RTF_PROTO2, '2' }, |
88 | { RTF_PROTO1, '1' }, | |
15637ed4 RG |
89 | { 0 } |
90 | }; | |
91 | ||
f76b4708 NW |
92 | /* |
93 | * Print address family. | |
94 | */ | |
95 | void | |
96 | p_proto(proto) | |
97 | int proto; | |
98 | { | |
99 | switch (proto) | |
100 | { | |
101 | case AF_INET: | |
102 | printf("inet"); | |
103 | break; | |
ad0448d8 GW |
104 | case AF_NS: |
105 | printf("NS"); | |
106 | break; | |
107 | case AF_OSI: | |
108 | printf("OSI"); | |
109 | break; | |
110 | case AF_CCITT: | |
111 | printf("CCITT"); | |
112 | break; | |
113 | case AF_APPLETALK: | |
114 | printf("AppleTalk"); | |
115 | break; | |
f76b4708 NW |
116 | default: |
117 | printf("%d", proto); | |
118 | break; | |
119 | } | |
120 | } | |
121 | ||
122 | ||
15637ed4 RG |
123 | /* |
124 | * Print routing tables. | |
125 | */ | |
a2a107a3 | 126 | int |
15637ed4 RG |
127 | routepr(hostaddr, netaddr, hashsizeaddr, treeaddr) |
128 | off_t hostaddr, netaddr, hashsizeaddr, treeaddr; | |
129 | { | |
130 | struct mbuf mb; | |
131 | register struct ortentry *rt; | |
132 | register struct mbuf *m; | |
133 | char name[16], *flags; | |
134 | struct mbuf **routehash; | |
135 | int hashsize; | |
136 | int i, doinghost = 1; | |
137 | ||
a2a107a3 GW |
138 | if (!treeaddr) { |
139 | printf("Could not find routing tables\n"); | |
140 | return 1; | |
141 | } | |
15637ed4 RG |
142 | printf("Routing tables\n"); |
143 | if (Aflag) | |
144 | printf("%-8.8s ","Address"); | |
a2a107a3 | 145 | printf("%-16.16s %-18.18s %-6.6s %6.6s%8.8s %-5.5s", |
15637ed4 | 146 | "Destination", "Gateway", |
a2a107a3 GW |
147 | "Flags", "Refs", "Use", "Iface"); |
148 | if(!aflag) { | |
149 | printf("%-6.6s %-6.6s\n", "MTU", "Rtt"); | |
150 | } else { | |
151 | printf("\n %8s %8s %8s %8s %8s %8s %8s %8s\n", | |
152 | "MTU", "Hopcount", "Expire", "recvpipe", | |
153 | "sendpipe", "ssthresh", "RTT", "RTT var."); | |
154 | } | |
155 | ||
156 | return treestuff(treeaddr); | |
157 | ||
15637ed4 RG |
158 | } |
159 | ||
160 | static union { | |
161 | struct sockaddr u_sa; | |
162 | u_short u_data[128]; | |
163 | } pt_u; | |
164 | int do_rtent = 0; | |
165 | struct rtentry rtentry; | |
166 | struct radix_node rnode; | |
167 | struct radix_mask rmask; | |
168 | ||
169 | int NewTree = 0; | |
170 | treestuff(rtree) | |
171 | off_t rtree; | |
172 | { | |
173 | struct radix_node_head *rnh, head; | |
174 | ||
175 | if (Aflag == 0 && NewTree) | |
176 | return(ntreestuff()); | |
177 | for (kget(rtree, rnh); rnh; rnh = head.rnh_next) { | |
178 | kget(rnh, head); | |
179 | if (head.rnh_af == 0) { | |
180 | if (Aflag || af == AF_UNSPEC) { | |
181 | printf("Netmasks:\n"); | |
182 | p_tree(head.rnh_treetop); | |
183 | } | |
184 | } else if (af == AF_UNSPEC || af == head.rnh_af) { | |
f76b4708 NW |
185 | printf("\nRoute Tree for Protocol Family "); |
186 | p_proto(head.rnh_af); | |
187 | printf(":\n"); | |
15637ed4 RG |
188 | do_rtent = 1; |
189 | p_tree(head.rnh_treetop); | |
190 | } | |
191 | } | |
192 | } | |
193 | ||
194 | struct sockaddr * | |
195 | kgetsa(dst) | |
196 | register struct sockaddr *dst; | |
197 | { | |
198 | kget(dst, pt_u.u_sa); | |
199 | if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) { | |
200 | kvm_read((off_t)dst, pt_u.u_data, pt_u.u_sa.sa_len); | |
201 | } | |
202 | return (&pt_u.u_sa); | |
203 | } | |
204 | ||
205 | p_tree(rn) | |
206 | struct radix_node *rn; | |
207 | { | |
208 | ||
209 | again: | |
210 | kget(rn, rnode); | |
211 | if (rnode.rn_b < 0) { | |
212 | if (Aflag) | |
213 | printf("%-8.8x ", rn); | |
214 | if (rnode.rn_flags & RNF_ROOT) | |
215 | printf("(root node)%s", | |
216 | rnode.rn_dupedkey ? " =>\n" : "\n"); | |
217 | else if (do_rtent) { | |
218 | kget(rn, rtentry); | |
219 | p_rtentry(&rtentry); | |
220 | if (Aflag) | |
221 | p_rtnode(); | |
222 | } else { | |
223 | p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), | |
224 | 0, 44); | |
225 | putchar('\n'); | |
226 | } | |
227 | if (rn = rnode.rn_dupedkey) | |
228 | goto again; | |
229 | } else { | |
230 | if (Aflag && do_rtent) { | |
231 | printf("%-8.8x ", rn); | |
232 | p_rtnode(); | |
233 | } | |
234 | rn = rnode.rn_r; | |
235 | p_tree(rnode.rn_l); | |
236 | p_tree(rn); | |
237 | } | |
238 | } | |
239 | char nbuf[20]; | |
240 | ||
241 | p_rtnode() | |
242 | { | |
243 | ||
244 | struct radix_mask *rm = rnode.rn_mklist; | |
245 | if (rnode.rn_b < 0) { | |
246 | if (rnode.rn_mask) { | |
247 | printf("\t mask "); | |
248 | p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), | |
249 | 0, -1); | |
250 | } else if (rm == 0) | |
251 | return; | |
252 | } else { | |
253 | sprintf(nbuf, "(%d)", rnode.rn_b); | |
254 | printf("%6.6s %8.8x : %8.8x", nbuf, rnode.rn_l, rnode.rn_r); | |
255 | } | |
256 | while (rm) { | |
257 | kget(rm, rmask); | |
258 | sprintf(nbuf, " %d refs, ", rmask.rm_refs); | |
259 | printf(" mk = %8.8x {(%d),%s", | |
260 | rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " "); | |
261 | p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, -1); | |
262 | putchar('}'); | |
263 | if (rm = rmask.rm_mklist) | |
264 | printf(" ->"); | |
265 | } | |
266 | putchar('\n'); | |
267 | } | |
268 | ||
269 | ntreestuff() | |
270 | { | |
271 | int needed; | |
272 | char *buf, *next, *lim; | |
273 | register struct rt_msghdr *rtm; | |
274 | ||
275 | if ((needed = getkerninfo(KINFO_RT_DUMP, 0, 0, 0)) < 0) | |
276 | { perror("route-getkerninfo-estimate"); exit(1);} | |
277 | if ((buf = malloc(needed)) == 0) | |
278 | { printf("out of space\n"); exit(1);} | |
279 | if (getkerninfo(KINFO_RT_DUMP, buf, &needed, 0) < 0) | |
280 | { perror("actual retrieval of routing table"); exit(1);} | |
281 | lim = buf + needed; | |
282 | for (next = buf; next < lim; next += rtm->rtm_msglen) { | |
283 | rtm = (struct rt_msghdr *)next; | |
284 | np_rtentry(rtm); | |
285 | } | |
286 | } | |
287 | ||
288 | np_rtentry(rtm) | |
289 | register struct rt_msghdr *rtm; | |
290 | { | |
291 | register struct sockaddr *sa = (struct sockaddr *)(rtm + 1); | |
292 | static int masks_done, old_af, banner_printed; | |
293 | int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; | |
294 | ||
295 | #ifdef notdef | |
296 | /* for the moment, netmasks are skipped over */ | |
297 | if (!banner_printed) { | |
298 | printf("Netmasks:\n"); | |
299 | banner_printed = 1; | |
300 | } | |
301 | if (masks_done == 0) { | |
302 | if (rtm->rtm_addrs != RTA_DST ) { | |
303 | masks_done = 1; | |
304 | af = sa->sa_family; | |
305 | } | |
306 | } else | |
307 | #endif | |
308 | af = sa->sa_family; | |
309 | if (af != old_af) { | |
310 | printf("\nRoute Tree for Protocol Family %d:\n", af); | |
311 | old_af = af; | |
312 | } | |
313 | if (rtm->rtm_addrs == RTA_DST) | |
314 | p_sockaddr(sa, 0, 36); | |
315 | else { | |
316 | p_sockaddr(sa, rtm->rtm_flags, 16); | |
317 | if (sa->sa_len == 0) | |
318 | sa->sa_len = sizeof(long); | |
319 | sa = (struct sockaddr *)(sa->sa_len + (char *)sa); | |
320 | p_sockaddr(sa, 0, 18); | |
321 | } | |
322 | p_flags(rtm->rtm_flags & interesting, "%-6.6s "); | |
323 | putchar('\n'); | |
324 | } | |
325 | ||
326 | p_sockaddr(sa, flags, width) | |
327 | struct sockaddr *sa; | |
328 | int flags, width; | |
329 | { | |
330 | char format[20], workbuf[128], *cp, *cplim; | |
331 | register char *cpout; | |
332 | ||
333 | switch(sa->sa_family) { | |
334 | case AF_INET: | |
335 | { | |
336 | register struct sockaddr_in *sin = (struct sockaddr_in *)sa; | |
337 | ||
338 | cp = (sin->sin_addr.s_addr == 0) ? "default" : | |
339 | ((flags & RTF_HOST) ? | |
340 | routename(sin->sin_addr) : netname(sin->sin_addr, 0L)); | |
341 | } | |
342 | break; | |
343 | ||
344 | #ifdef NS | |
345 | case AF_NS: | |
346 | cp = ns_print((struct sockaddr_ns *)sa); | |
347 | break; | |
348 | #endif | |
349 | ||
350 | default: | |
351 | { | |
9fd191a3 | 352 | register u_char *s = ((u_char *)sa->sa_data), *slim; |
15637ed4 | 353 | |
9fd191a3 | 354 | slim = (u_char *) sa + sa->sa_len; |
15637ed4 RG |
355 | cp = workbuf; |
356 | cplim = cp + sizeof(workbuf) - 6; | |
357 | cp += sprintf(cp, "(%d)", sa->sa_family); | |
358 | while (s < slim && cp < cplim) | |
9758c1e7 | 359 | cp += sprintf(cp, " %02x%02x", s[0], s[1]), s += 2; |
15637ed4 RG |
360 | cp = workbuf; |
361 | } | |
362 | } | |
363 | if (width < 0 ) | |
364 | printf("%s ", cp); | |
365 | else { | |
366 | if (nflag) | |
367 | printf("%-*s ", width, cp); | |
368 | else | |
369 | printf("%-*.*s ", width, width, cp); | |
370 | } | |
371 | } | |
372 | ||
373 | p_flags(f, format) | |
374 | register int f; | |
375 | char *format; | |
376 | { | |
377 | char name[33], *flags; | |
378 | register struct bits *p = bits; | |
379 | for (flags = name; p->b_mask; p++) | |
380 | if (p->b_mask & f) | |
381 | *flags++ = p->b_val; | |
382 | *flags = '\0'; | |
383 | printf(format, name); | |
384 | } | |
385 | ||
386 | p_rtentry(rt) | |
387 | register struct rtentry *rt; | |
388 | { | |
389 | char name[16]; | |
390 | register struct sockaddr *sa; | |
391 | struct ifnet ifnet; | |
392 | ||
393 | p_sockaddr(kgetsa(rt_key(rt)), rt->rt_flags, 16); | |
f76b4708 | 394 | p_sockaddr(kgetsa(rt->rt_gateway), RTF_HOST, 18); |
15637ed4 RG |
395 | p_flags(rt->rt_flags, "%-6.6s "); |
396 | printf("%6d %8d ", rt->rt_refcnt, rt->rt_use); | |
397 | if (rt->rt_ifp == 0) { | |
398 | putchar('\n'); | |
399 | return; | |
400 | } | |
401 | kget(rt->rt_ifp, ifnet); | |
402 | kvm_read((off_t)ifnet.if_name, name, 16); | |
ad0448d8 | 403 | printf(" %.2s%d", name, ifnet.if_unit); |
a2a107a3 GW |
404 | if(aflag) { |
405 | /* | |
406 | * MTU | |
407 | */ | |
408 | if(rt->rt_rmx.rmx_mtu) | |
409 | printf("\n %7d%c", rt->rt_rmx.rmx_mtu, | |
410 | (rt->rt_rmx.rmx_locks & RTV_MTU) ? '*' : ' '); | |
411 | else | |
5a444c12 | 412 | printf("\n %7s ", "-"); |
a2a107a3 GW |
413 | |
414 | /* | |
415 | * Hop count | |
416 | */ | |
417 | if(rt->rt_rmx.rmx_hopcount) | |
418 | printf(" %7d%c", rt->rt_rmx.rmx_hopcount, | |
419 | (rt->rt_rmx.rmx_locks & RTV_HOPCOUNT) ? '*' : ' '); | |
420 | else | |
5a444c12 | 421 | printf(" %7s ", "-"); |
a2a107a3 GW |
422 | |
423 | /* | |
424 | * Expiration time | |
425 | */ | |
426 | if(rt->rt_rmx.rmx_expire) | |
427 | printf(" %7d%c", rt->rt_rmx.rmx_expire, | |
428 | (rt->rt_rmx.rmx_locks & RTV_EXPIRE) ? '*' : ' '); | |
429 | else | |
5a444c12 | 430 | printf(" %7s ", "-"); |
a2a107a3 GW |
431 | |
432 | /* | |
433 | * Receive pipe size (bytes) | |
434 | */ | |
435 | if(rt->rt_rmx.rmx_recvpipe) | |
436 | printf(" %7d%c", rt->rt_rmx.rmx_recvpipe, | |
437 | (rt->rt_rmx.rmx_locks & RTV_RPIPE) ? '*' : ' '); | |
438 | else | |
5a444c12 | 439 | printf(" %7s ", "-"); |
a2a107a3 GW |
440 | |
441 | /* | |
442 | * Send pipe size (bytes) | |
443 | */ | |
444 | if(rt->rt_rmx.rmx_sendpipe) | |
445 | printf(" %7d%c", rt->rt_rmx.rmx_sendpipe, | |
446 | (rt->rt_rmx.rmx_locks & RTV_SPIPE) ? '*' : ' '); | |
447 | else | |
5a444c12 | 448 | printf(" %7s ", "-"); |
a2a107a3 GW |
449 | |
450 | /* | |
451 | * Slow-start threshold (bytes) | |
452 | */ | |
453 | if(rt->rt_rmx.rmx_ssthresh) | |
454 | printf(" %7d%c", rt->rt_rmx.rmx_ssthresh, | |
455 | (rt->rt_rmx.rmx_locks & RTV_SSTHRESH) ? '*' : ' '); | |
456 | else | |
5a444c12 | 457 | printf(" %7s ", "-"); |
a2a107a3 GW |
458 | |
459 | /* | |
460 | * Round-trip time (seconds) | |
461 | */ | |
462 | if(rt->rt_rmx.rmx_rtt) | |
463 | printf(" %7.4f%c", (1.0 * rt->rt_rmx.rmx_rtt) / RTM_RTTUNIT, | |
464 | (rt->rt_rmx.rmx_locks & RTV_RTT) ? '*' : ' '); | |
465 | else | |
5a444c12 | 466 | printf(" %7s ", "-"); |
a2a107a3 GW |
467 | |
468 | /* | |
469 | * Round-trip time variance (seconds) | |
470 | */ | |
471 | if(rt->rt_rmx.rmx_rttvar) | |
472 | printf(" %7.4f%c", (1.0 * rt->rt_rmx.rmx_rttvar) / RTM_RTTUNIT, | |
473 | (rt->rt_rmx.rmx_locks & RTV_RTTVAR) ? '*' : ' '); | |
474 | else | |
5a444c12 | 475 | printf(" %7s ", "-"); |
a2a107a3 GW |
476 | } else { /* no -a flag */ |
477 | if(rt->rt_rmx.rmx_mtu) | |
478 | printf(" %6d", rt->rt_rmx.rmx_mtu); | |
479 | else | |
480 | printf(" %-6s", "-"); | |
481 | if(rt->rt_rmx.rmx_rtt) | |
482 | printf(" %6.3f", (1. * rt->rt_rmx.rmx_rtt) / RTM_RTTUNIT); | |
483 | else | |
484 | printf(" %-6s", "-"); | |
485 | } | |
ad0448d8 | 486 | printf(rt->rt_nodes[0].rn_dupedkey ? " =>\n" : "\n"); |
15637ed4 RG |
487 | } |
488 | ||
489 | char * | |
490 | routename(in) | |
491 | struct in_addr in; | |
492 | { | |
493 | register char *cp; | |
494 | static char line[MAXHOSTNAMELEN + 1]; | |
495 | struct hostent *hp; | |
496 | static char domain[MAXHOSTNAMELEN + 1]; | |
497 | static int first = 1; | |
498 | char *index(); | |
499 | ||
500 | if (first) { | |
501 | first = 0; | |
502 | if (gethostname(domain, MAXHOSTNAMELEN) == 0 && | |
503 | (cp = index(domain, '.'))) | |
504 | (void) strcpy(domain, cp + 1); | |
505 | else | |
506 | domain[0] = 0; | |
507 | } | |
508 | cp = 0; | |
509 | if (!nflag) { | |
510 | hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), | |
511 | AF_INET); | |
512 | if (hp) { | |
513 | if ((cp = index(hp->h_name, '.')) && | |
514 | !strcmp(cp + 1, domain)) | |
515 | *cp = 0; | |
516 | cp = hp->h_name; | |
517 | } | |
518 | } | |
519 | if (cp) | |
520 | strncpy(line, cp, sizeof(line) - 1); | |
521 | else { | |
522 | #define C(x) ((x) & 0xff) | |
523 | in.s_addr = ntohl(in.s_addr); | |
524 | sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), | |
525 | C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); | |
526 | } | |
527 | return (line); | |
528 | } | |
529 | ||
530 | /* | |
531 | * Return the name of the network whose address is given. | |
532 | * The address is assumed to be that of a net or subnet, not a host. | |
533 | */ | |
534 | char * | |
535 | netname(in, mask) | |
536 | struct in_addr in; | |
537 | u_long mask; | |
538 | { | |
539 | char *cp = 0; | |
540 | static char line[MAXHOSTNAMELEN + 1]; | |
541 | struct netent *np = 0; | |
542 | u_long net; | |
543 | register i; | |
544 | int subnetshift; | |
545 | ||
546 | i = ntohl(in.s_addr); | |
547 | if (!nflag && i) { | |
548 | if (mask == 0) { | |
549 | if (IN_CLASSA(i)) { | |
550 | mask = IN_CLASSA_NET; | |
551 | subnetshift = 8; | |
552 | } else if (IN_CLASSB(i)) { | |
553 | mask = IN_CLASSB_NET; | |
554 | subnetshift = 8; | |
555 | } else { | |
556 | mask = IN_CLASSC_NET; | |
557 | subnetshift = 4; | |
558 | } | |
559 | /* | |
560 | * If there are more bits than the standard mask | |
561 | * would suggest, subnets must be in use. | |
562 | * Guess at the subnet mask, assuming reasonable | |
563 | * width subnet fields. | |
564 | */ | |
565 | while (i &~ mask) | |
566 | mask = (long)mask >> subnetshift; | |
567 | } | |
568 | net = i & mask; | |
569 | while ((mask & 1) == 0) | |
570 | mask >>= 1, net >>= 1; | |
571 | np = getnetbyaddr(net, AF_INET); | |
572 | if (np) | |
573 | cp = np->n_name; | |
574 | } | |
575 | if (cp) | |
576 | strncpy(line, cp, sizeof(line) - 1); | |
577 | else if ((i & 0xffffff) == 0) | |
578 | sprintf(line, "%u", C(i >> 24)); | |
579 | else if ((i & 0xffff) == 0) | |
580 | sprintf(line, "%u.%u", C(i >> 24) , C(i >> 16)); | |
581 | else if ((i & 0xff) == 0) | |
582 | sprintf(line, "%u.%u.%u", C(i >> 24), C(i >> 16), C(i >> 8)); | |
583 | else | |
584 | sprintf(line, "%u.%u.%u.%u", C(i >> 24), | |
585 | C(i >> 16), C(i >> 8), C(i)); | |
586 | return (line); | |
587 | } | |
588 | ||
589 | /* | |
590 | * Print routing statistics | |
591 | */ | |
592 | rt_stats(off) | |
593 | off_t off; | |
594 | { | |
595 | struct rtstat rtstat; | |
596 | ||
597 | if (off == 0) { | |
598 | printf("rtstat: symbol not in namelist\n"); | |
599 | return; | |
600 | } | |
601 | kvm_read(off, (char *)&rtstat, sizeof (rtstat)); | |
602 | printf("routing:\n"); | |
603 | printf("\t%u bad routing redirect%s\n", | |
604 | rtstat.rts_badredirect, plural(rtstat.rts_badredirect)); | |
605 | printf("\t%u dynamically created route%s\n", | |
606 | rtstat.rts_dynamic, plural(rtstat.rts_dynamic)); | |
607 | printf("\t%u new gateway%s due to redirects\n", | |
608 | rtstat.rts_newgateway, plural(rtstat.rts_newgateway)); | |
609 | printf("\t%u destination%s found unreachable\n", | |
610 | rtstat.rts_unreach, plural(rtstat.rts_unreach)); | |
611 | printf("\t%u use%s of a wildcard route\n", | |
612 | rtstat.rts_wildcard, plural(rtstat.rts_wildcard)); | |
613 | } | |
614 | #ifdef NS | |
615 | short ns_nullh[] = {0,0,0}; | |
616 | short ns_bh[] = {-1,-1,-1}; | |
617 | ||
618 | char * | |
619 | ns_print(sns) | |
620 | struct sockaddr_ns *sns; | |
621 | { | |
622 | struct ns_addr work; | |
623 | union { union ns_net net_e; u_long long_e; } net; | |
624 | u_short port; | |
625 | static char mybuf[50], cport[10], chost[25]; | |
626 | char *host = ""; | |
627 | register char *p; register u_char *q; | |
628 | ||
629 | work = sns->sns_addr; | |
630 | port = ntohs(work.x_port); | |
631 | work.x_port = 0; | |
632 | net.net_e = work.x_net; | |
633 | if (ns_nullhost(work) && net.long_e == 0) { | |
634 | if (port ) { | |
635 | sprintf(mybuf, "*.%xH", port); | |
636 | upHex(mybuf); | |
637 | } else | |
638 | sprintf(mybuf, "*.*"); | |
639 | return (mybuf); | |
640 | } | |
641 | ||
642 | if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) { | |
643 | host = "any"; | |
644 | } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) { | |
645 | host = "*"; | |
646 | } else { | |
647 | q = work.x_host.c_host; | |
648 | sprintf(chost, "%02x%02x%02x%02x%02x%02xH", | |
649 | q[0], q[1], q[2], q[3], q[4], q[5]); | |
650 | for (p = chost; *p == '0' && p < chost + 12; p++); | |
651 | host = p; | |
652 | } | |
653 | if (port) | |
654 | sprintf(cport, ".%xH", htons(port)); | |
655 | else | |
656 | *cport = 0; | |
657 | ||
658 | sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport); | |
659 | upHex(mybuf); | |
660 | return(mybuf); | |
661 | } | |
662 | ||
663 | char * | |
664 | ns_phost(sns) | |
665 | struct sockaddr_ns *sns; | |
666 | { | |
667 | struct sockaddr_ns work; | |
668 | static union ns_net ns_zeronet; | |
669 | char *p; | |
670 | ||
671 | work = *sns; | |
672 | work.sns_addr.x_port = 0; | |
673 | work.sns_addr.x_net = ns_zeronet; | |
674 | ||
675 | p = ns_print(&work); | |
676 | if (strncmp("0H.", p, 3) == 0) p += 3; | |
677 | return(p); | |
678 | } | |
679 | upHex(p0) | |
680 | char *p0; | |
681 | { | |
682 | register char *p = p0; | |
683 | for (; *p; p++) switch (*p) { | |
684 | ||
685 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
686 | *p += ('A' - 'a'); | |
687 | } | |
688 | } | |
689 | #endif /* NS */ |