1 /* 2 * 3 * Copyright (c) 1983, 1989, 1991, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef lint 36 static const char copyright[] = 37 "@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ 38 The Regents of the University of California. All rights reserved.\n"; 39 #endif /* not lint */ 40 41 #ifndef lint 42 /* 43 static char sccsid[] = "@(#)route.c 8.3 (Berkeley) 3/19/94"; 44 */ 45 static const char rcsid[] = 46 "$Id: route.c,v 1.16 1996/10/27 17:42:14 fenner Exp $"; 47 #endif /* not lint */ 48 49 #include <sys/param.h> 50 #include <sys/file.h> 51 #include <sys/socket.h> 52 #include <sys/ioctl.h> 53 #include <sys/sysctl.h> 54 55 #include <net/if.h> 56 #include <net/route.h> 57 #include <net/if_dl.h> 58 #include <netinet/in.h> 59 #include <netatalk/at.h> 60 #ifdef NS 61 #include <netns/ns.h> 62 #endif 63 #ifdef ISO 64 #include <netiso/iso.h> 65 #endif 66 #ifdef CCITT 67 #include <netccitt/x25.h> 68 #endif 69 #include <arpa/inet.h> 70 #include <netdb.h> 71 72 #include <errno.h> 73 #include <unistd.h> 74 #include <stdio.h> 75 #include <ctype.h> 76 #include <stdlib.h> 77 #include <string.h> 78 #include <paths.h> 79 #include <err.h> 80 #include <sysexits.h> 81 82 struct keytab { 83 char *kt_cp; 84 int kt_i; 85 } keywords[] = { 86 #include "keywords.h" 87 {0, 0} 88 }; 89 90 struct ortentry route; 91 union sockunion { 92 struct sockaddr sa; 93 struct sockaddr_in sin; 94 struct sockaddr_at sat; 95 #ifdef NS 96 struct sockaddr_ns sns; 97 #endif 98 #ifdef ISO 99 struct sockaddr_iso siso; 100 #endif 101 struct sockaddr_dl sdl; 102 #ifdef CCITT 103 struct sockaddr_x25 sx25; 104 #endif 105 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 106 107 typedef union sockunion *sup; 108 int pid, rtm_addrs, uid; 109 int s; 110 int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword(); 111 int iflag, verbose, aflen = sizeof (struct sockaddr_in); 112 int locking, lockrest, debugonly; 113 struct rt_metrics rt_metrics; 114 u_long rtm_inits; 115 struct in_addr inet_makeaddr(); 116 int atalk_aton __P((const char *, struct at_addr *)); 117 char *atalk_ntoa __P((struct at_addr)); 118 char *routename(), *netname(); 119 void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf(); 120 void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr(); 121 int getaddr(), rtmsg(), x25_makemask(); 122 extern char *inet_ntoa(), *iso_ntoa(), *link_ntoa(); 123 #ifdef CCITT 124 extern int ccitt_addr __P((char *, struct sockaddr_x25 *)); 125 #endif 126 127 void usage __P((const char *)) __dead2; 128 129 void 130 usage(cp) 131 const char *cp; 132 { 133 if (cp) 134 warnx("bad keyword: %s", cp); 135 (void) fprintf(stderr, 136 "usage: route [ -nqv ] cmd [[ -<qualifers> ] args ]\n"); 137 exit(EX_USAGE); 138 /* NOTREACHED */ 139 } 140 141 #define ROUNDUP(a) \ 142 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 143 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 144 145 int 146 main(argc, argv) 147 int argc; 148 char **argv; 149 { 150 extern int optind; 151 int ch; 152 153 if (argc < 2) 154 usage((char *)NULL); 155 156 while ((ch = getopt(argc, argv, "nqdtv")) != EOF) 157 switch(ch) { 158 case 'n': 159 nflag = 1; 160 break; 161 case 'q': 162 qflag = 1; 163 break; 164 case 'v': 165 verbose = 1; 166 break; 167 case 't': 168 tflag = 1; 169 break; 170 case 'd': 171 debugonly = 1; 172 break; 173 case '?': 174 default: 175 usage((char *)NULL); 176 } 177 argc -= optind; 178 argv += optind; 179 180 pid = getpid(); 181 uid = getuid(); 182 if (tflag) 183 s = open("/dev/null", O_WRONLY, 0); 184 else 185 s = socket(PF_ROUTE, SOCK_RAW, 0); 186 if (s < 0) 187 err(EX_OSERR, "socket"); 188 setuid(uid); 189 if (*argv) 190 switch (keyword(*argv)) { 191 case K_GET: 192 uid = 0; 193 /* FALLTHROUGH */ 194 195 case K_CHANGE: 196 case K_ADD: 197 case K_DELETE: 198 newroute(argc, argv); 199 exit(0); 200 /* NOTREACHED */ 201 202 case K_MONITOR: 203 monitor(); 204 /* NOTREACHED */ 205 206 case K_FLUSH: 207 flushroutes(argc, argv); 208 exit(0); 209 /* NOTREACHED */ 210 } 211 usage(*argv); 212 /* NOTREACHED */ 213 } 214 215 /* 216 * Purge all entries in the routing tables not 217 * associated with network interfaces. 218 */ 219 void 220 flushroutes(argc, argv) 221 int argc; 222 char *argv[]; 223 { 224 size_t needed; 225 int mib[6], rlen, seqno; 226 char *buf, *next, *lim; 227 register struct rt_msghdr *rtm; 228 229 if (uid) { 230 errx(EX_NOPERM, "must be root to alter routing table"); 231 } 232 shutdown(s, 0); /* Don't want to read back our messages */ 233 if (argc > 1) { 234 argv++; 235 if (argc == 2 && **argv == '-') 236 switch (keyword(*argv + 1)) { 237 case K_INET: 238 af = AF_INET; 239 break; 240 case K_ATALK: 241 af = AF_APPLETALK; 242 break; 243 #ifdef NS 244 case K_XNS: 245 af = AF_NS; 246 break; 247 #endif 248 case K_LINK: 249 af = AF_LINK; 250 break; 251 #ifdef ISO 252 case K_ISO: 253 case K_OSI: 254 af = AF_ISO; 255 break; 256 #endif 257 #ifdef CCITT 258 case K_X25: 259 af = AF_CCITT; 260 #endif 261 default: 262 goto bad; 263 } else 264 bad: usage(*argv); 265 } 266 mib[0] = CTL_NET; 267 mib[1] = PF_ROUTE; 268 mib[2] = 0; /* protocol */ 269 mib[3] = 0; /* wildcard address family */ 270 mib[4] = NET_RT_DUMP; 271 mib[5] = 0; /* no flags */ 272 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 273 err(EX_OSERR, "route-sysctl-estimate"); 274 if ((buf = malloc(needed)) == NULL) 275 err(EX_OSERR, "malloc"); 276 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 277 err(EX_OSERR, "route-sysctl-get"); 278 lim = buf + needed; 279 if (verbose) 280 (void) printf("Examining routing table from sysctl\n"); 281 seqno = 0; /* ??? */ 282 for (next = buf; next < lim; next += rtm->rtm_msglen) { 283 rtm = (struct rt_msghdr *)next; 284 if (verbose) 285 print_rtmsg(rtm, rtm->rtm_msglen); 286 if ((rtm->rtm_flags & RTF_GATEWAY) == 0) 287 continue; 288 if (af) { 289 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 290 291 if (sa->sa_family != af) 292 continue; 293 } 294 if (debugonly) 295 continue; 296 rtm->rtm_type = RTM_DELETE; 297 rtm->rtm_seq = seqno; 298 rlen = write(s, next, rtm->rtm_msglen); 299 if (rlen < (int)rtm->rtm_msglen) { 300 warn("write to routing socket"); 301 (void) printf("got only %d for rlen\n", rlen); 302 break; 303 } 304 seqno++; 305 if (qflag) 306 continue; 307 if (verbose) 308 print_rtmsg(rtm, rlen); 309 else { 310 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 311 (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ? 312 routename(sa) : netname(sa)); 313 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 314 (void) printf("%-20.20s ", routename(sa)); 315 (void) printf("done\n"); 316 } 317 } 318 } 319 320 char * 321 routename(sa) 322 struct sockaddr *sa; 323 { 324 register char *cp; 325 static char line[MAXHOSTNAMELEN + 1]; 326 struct hostent *hp; 327 static char domain[MAXHOSTNAMELEN + 1]; 328 static int first = 1; 329 #ifdef NS 330 char *ns_print(); 331 #endif 332 333 if (first) { 334 first = 0; 335 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 336 (cp = index(domain, '.'))) { 337 domain[MAXHOSTNAMELEN] = '\0'; 338 (void) strcpy(domain, cp + 1); 339 } else 340 domain[0] = 0; 341 } 342 343 if (sa->sa_len == 0) 344 strcpy(line, "default"); 345 else switch (sa->sa_family) { 346 347 case AF_INET: 348 { struct in_addr in; 349 in = ((struct sockaddr_in *)sa)->sin_addr; 350 351 cp = 0; 352 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) 353 cp = "default"; 354 if (cp == 0 && !nflag) { 355 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 356 AF_INET); 357 if (hp) { 358 if ((cp = index(hp->h_name, '.')) && 359 !strcmp(cp + 1, domain)) 360 *cp = 0; 361 cp = hp->h_name; 362 } 363 } 364 if (cp) 365 strncpy(line, cp, sizeof line); 366 else { 367 /* XXX - why not inet_ntoa()? */ 368 #define C(x) (unsigned)((x) & 0xff) 369 in.s_addr = ntohl(in.s_addr); 370 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 371 C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); 372 } 373 break; 374 } 375 376 case AF_APPLETALK: 377 (void) snprintf(line, sizeof(line), "atalk %s", 378 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 379 break; 380 381 #ifdef NS 382 case AF_NS: 383 return (ns_print((struct sockaddr_ns *)sa)); 384 #endif 385 386 case AF_LINK: 387 return (link_ntoa((struct sockaddr_dl *)sa)); 388 389 #ifdef ISO 390 case AF_ISO: 391 (void) snprintf(line, sizeof line, "iso %s", 392 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 393 break; 394 #endif 395 default: 396 { u_short *s = (u_short *)sa; 397 u_short *slim = s + ((sa->sa_len + 1) >> 1); 398 char *cp = line + sprintf(line, "(%d)", sa->sa_family); 399 char *cpe = line + sizeof(line); 400 401 while (++s < slim && cp < cpe) /* start with sa->sa_data */ 402 cp += snprintf(cp, cpe - cp, " %x", *s); 403 break; 404 } 405 } 406 return (line); 407 } 408 409 /* 410 * Return the name of the network whose address is given. 411 * The address is assumed to be that of a net or subnet, not a host. 412 */ 413 char * 414 netname(sa) 415 struct sockaddr *sa; 416 { 417 char *cp = 0; 418 static char line[MAXHOSTNAMELEN + 1]; 419 struct netent *np = 0; 420 u_long net, mask; 421 register u_long i; 422 int subnetshift; 423 #ifdef NS 424 char *ns_print(); 425 #endif 426 427 switch (sa->sa_family) { 428 429 case AF_INET: 430 { struct in_addr in; 431 in = ((struct sockaddr_in *)sa)->sin_addr; 432 433 i = in.s_addr = ntohl(in.s_addr); 434 if (in.s_addr == 0) 435 cp = "default"; 436 else if (!nflag) { 437 if (IN_CLASSA(i)) { 438 mask = IN_CLASSA_NET; 439 subnetshift = 8; 440 } else if (IN_CLASSB(i)) { 441 mask = IN_CLASSB_NET; 442 subnetshift = 8; 443 } else { 444 mask = IN_CLASSC_NET; 445 subnetshift = 4; 446 } 447 /* 448 * If there are more bits than the standard mask 449 * would suggest, subnets must be in use. 450 * Guess at the subnet mask, assuming reasonable 451 * width subnet fields. 452 */ 453 while (in.s_addr &~ mask) 454 mask = (long)mask >> subnetshift; 455 net = in.s_addr & mask; 456 while ((mask & 1) == 0) 457 mask >>= 1, net >>= 1; 458 np = getnetbyaddr(net, AF_INET); 459 if (np) 460 cp = np->n_name; 461 } 462 if (cp) 463 strncpy(line, cp, sizeof(line)); 464 else if ((in.s_addr & 0xffffff) == 0) 465 (void) sprintf(line, "%u", C(in.s_addr >> 24)); 466 else if ((in.s_addr & 0xffff) == 0) 467 (void) sprintf(line, "%u.%u", C(in.s_addr >> 24), 468 C(in.s_addr >> 16)); 469 else if ((in.s_addr & 0xff) == 0) 470 (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24), 471 C(in.s_addr >> 16), C(in.s_addr >> 8)); 472 else 473 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 474 C(in.s_addr >> 16), C(in.s_addr >> 8), 475 C(in.s_addr)); 476 break; 477 } 478 479 case AF_APPLETALK: 480 (void) snprintf(line, sizeof(line), "atalk %s", 481 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 482 break; 483 484 #ifdef NS 485 case AF_NS: 486 return (ns_print((struct sockaddr_ns *)sa)); 487 break; 488 #endif 489 490 case AF_LINK: 491 return (link_ntoa((struct sockaddr_dl *)sa)); 492 493 #ifdef ISO 494 case AF_ISO: 495 (void) snprintf(line, sizeof(line), "iso %s", 496 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 497 break; 498 #endif 499 500 default: 501 { u_short *s = (u_short *)sa->sa_data; 502 u_short *slim = s + ((sa->sa_len + 1)>>1); 503 char *cp = line + sprintf(line, "af %d:", sa->sa_family); 504 char *cpe = line + sizeof(line); 505 506 while (s < slim && cp < cpe) 507 cp += snprintf(cp, cpe - cp, " %x", *s++); 508 break; 509 } 510 } 511 return (line); 512 } 513 514 void 515 set_metric(value, key) 516 char *value; 517 int key; 518 { 519 int flag = 0; 520 u_long noval, *valp = &noval; 521 522 switch (key) { 523 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 524 caseof(K_MTU, RTV_MTU, rmx_mtu); 525 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 526 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 527 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 528 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 529 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 530 caseof(K_RTT, RTV_RTT, rmx_rtt); 531 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 532 } 533 rtm_inits |= flag; 534 if (lockrest || locking) 535 rt_metrics.rmx_locks |= flag; 536 if (locking) 537 locking = 0; 538 *valp = atoi(value); 539 } 540 541 void 542 newroute(argc, argv) 543 int argc; 544 register char **argv; 545 { 546 char *cmd, *dest = "", *gateway = "", *err; 547 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 548 int key; 549 struct hostent *hp = 0; 550 551 if (uid) { 552 errx(EX_NOPERM, "must be root to alter routing table"); 553 } 554 cmd = argv[0]; 555 if (*cmd != 'g') 556 shutdown(s, 0); /* Don't want to read back our messages */ 557 while (--argc > 0) { 558 if (**(++argv)== '-') { 559 switch (key = keyword(1 + *argv)) { 560 case K_LINK: 561 af = AF_LINK; 562 aflen = sizeof(struct sockaddr_dl); 563 break; 564 #ifdef ISO 565 case K_OSI: 566 case K_ISO: 567 af = AF_ISO; 568 aflen = sizeof(struct sockaddr_iso); 569 break; 570 #endif 571 case K_INET: 572 af = AF_INET; 573 aflen = sizeof(struct sockaddr_in); 574 break; 575 case K_ATALK: 576 af = AF_APPLETALK; 577 aflen = sizeof(struct sockaddr_at); 578 break; 579 #ifdef CCITT 580 case K_X25: 581 af = AF_CCITT; 582 aflen = sizeof(struct sockaddr_x25); 583 break; 584 #endif 585 case K_SA: 586 af = PF_ROUTE; 587 aflen = sizeof(union sockunion); 588 break; 589 #ifdef NS 590 case K_XNS: 591 af = AF_NS; 592 aflen = sizeof(struct sockaddr_ns); 593 break; 594 #endif 595 case K_IFACE: 596 case K_INTERFACE: 597 iflag++; 598 break; 599 case K_NOSTATIC: 600 flags &= ~RTF_STATIC; 601 break; 602 case K_LLINFO: 603 flags |= RTF_LLINFO; 604 break; 605 case K_LOCK: 606 locking = 1; 607 break; 608 case K_LOCKREST: 609 lockrest = 1; 610 break; 611 case K_HOST: 612 forcehost++; 613 break; 614 case K_REJECT: 615 flags |= RTF_REJECT; 616 break; 617 case K_BLACKHOLE: 618 flags |= RTF_BLACKHOLE; 619 break; 620 case K_PROTO1: 621 flags |= RTF_PROTO1; 622 break; 623 case K_PROTO2: 624 flags |= RTF_PROTO2; 625 break; 626 case K_CLONING: 627 flags |= RTF_CLONING; 628 break; 629 case K_XRESOLVE: 630 flags |= RTF_XRESOLVE; 631 break; 632 case K_STATIC: 633 flags |= RTF_STATIC; 634 break; 635 case K_IFA: 636 argc--; 637 (void) getaddr(RTA_IFA, *++argv, 0); 638 break; 639 case K_IFP: 640 argc--; 641 (void) getaddr(RTA_IFP, *++argv, 0); 642 break; 643 case K_GENMASK: 644 argc--; 645 (void) getaddr(RTA_GENMASK, *++argv, 0); 646 break; 647 case K_GATEWAY: 648 argc--; 649 (void) getaddr(RTA_GATEWAY, *++argv, 0); 650 break; 651 case K_DST: 652 argc--; 653 ishost = getaddr(RTA_DST, *++argv, &hp); 654 dest = *argv; 655 break; 656 case K_NETMASK: 657 argc--; 658 (void) getaddr(RTA_NETMASK, *++argv, 0); 659 /* FALLTHROUGH */ 660 case K_NET: 661 forcenet++; 662 break; 663 case K_MTU: 664 case K_HOPCOUNT: 665 case K_EXPIRE: 666 case K_RECVPIPE: 667 case K_SENDPIPE: 668 case K_SSTHRESH: 669 case K_RTT: 670 case K_RTTVAR: 671 argc--; 672 set_metric(*++argv, key); 673 break; 674 default: 675 usage(1+*argv); 676 } 677 } else { 678 if ((rtm_addrs & RTA_DST) == 0) { 679 dest = *argv; 680 ishost = getaddr(RTA_DST, *argv, &hp); 681 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 682 gateway = *argv; 683 (void) getaddr(RTA_GATEWAY, *argv, &hp); 684 } else { 685 #ifdef CRUFT 686 int ret = atoi(*argv); 687 688 if (ret == 0) { 689 if (strcmp(*argv, "0") == 0) 690 printf("%s,%s", 691 "old usage of trailing 0", 692 "assuming route to if\n"); 693 else 694 usage((char *)NULL); 695 iflag = 1; 696 continue; 697 } else if (ret > 0 && ret < 10) { 698 printf("old usage of trailing digit, "); 699 printf("assuming route via gateway\n"); 700 iflag = 0; 701 continue; 702 } 703 #endif 704 (void) getaddr(RTA_NETMASK, *argv, 0); 705 } 706 } 707 } 708 if (forcehost) 709 ishost = 1; 710 if (forcenet) 711 ishost = 0; 712 flags |= RTF_UP; 713 if (ishost) 714 flags |= RTF_HOST; 715 if (iflag == 0) 716 flags |= RTF_GATEWAY; 717 for (attempts = 1; ; attempts++) { 718 errno = 0; 719 if ((ret = rtmsg(*cmd, flags)) == 0) 720 break; 721 if (errno != ENETUNREACH && errno != ESRCH) 722 break; 723 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 724 hp->h_addr_list++; 725 bcopy(hp->h_addr_list[0], &so_gate.sin.sin_addr, 726 hp->h_length); 727 } else 728 break; 729 } 730 if (*cmd == 'g') 731 exit(0); 732 oerrno = errno; 733 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); 734 if (*gateway) { 735 (void) printf(": gateway %s", gateway); 736 if (attempts > 1 && ret == 0 && af == AF_INET) 737 (void) printf(" (%s)", 738 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr)); 739 } 740 if (ret == 0) 741 (void) printf("\n"); 742 else { 743 switch (oerrno) { 744 case ESRCH: 745 err = "not in table"; 746 break; 747 case EBUSY: 748 err = "entry in use"; 749 break; 750 case ENOBUFS: 751 err = "routing table overflow"; 752 break; 753 default: 754 err = strerror(oerrno); 755 break; 756 } 757 (void) printf(": %s\n", err); 758 } 759 } 760 761 void 762 inet_makenetandmask(net, sin) 763 u_long net; 764 register struct sockaddr_in *sin; 765 { 766 u_long addr, mask = 0; 767 register char *cp; 768 769 rtm_addrs |= RTA_NETMASK; 770 if (net == 0) 771 mask = addr = 0; 772 else if (net < 128) { 773 addr = net << IN_CLASSA_NSHIFT; 774 mask = IN_CLASSA_NET; 775 } else if (net < 65536) { 776 addr = net << IN_CLASSB_NSHIFT; 777 mask = IN_CLASSB_NET; 778 } else if (net < 16777216L) { 779 addr = net << IN_CLASSC_NSHIFT; 780 mask = IN_CLASSC_NET; 781 } else { 782 addr = net; 783 if ((addr & IN_CLASSA_HOST) == 0) 784 mask = IN_CLASSA_NET; 785 else if ((addr & IN_CLASSB_HOST) == 0) 786 mask = IN_CLASSB_NET; 787 else if ((addr & IN_CLASSC_HOST) == 0) 788 mask = IN_CLASSC_NET; 789 else 790 mask = -1; 791 } 792 sin->sin_addr.s_addr = htonl(addr); 793 sin = &so_mask.sin; 794 sin->sin_addr.s_addr = htonl(mask); 795 sin->sin_len = 0; 796 sin->sin_family = 0; 797 cp = (char *)(&sin->sin_addr + 1); 798 while (*--cp == 0 && cp > (char *)sin) 799 ; 800 sin->sin_len = 1 + cp - (char *)sin; 801 } 802 803 /* 804 * Interpret an argument as a network address of some kind, 805 * returning 1 if a host address, 0 if a network address. 806 */ 807 int 808 getaddr(which, s, hpp) 809 int which; 810 char *s; 811 struct hostent **hpp; 812 { 813 register sup su; 814 #ifdef NS 815 struct ns_addr ns_addr(); 816 #endif 817 #ifdef ISO 818 struct iso_addr *iso_addr(); 819 #endif 820 struct hostent *hp; 821 struct netent *np; 822 u_long val; 823 824 if (af == 0) { 825 af = AF_INET; 826 aflen = sizeof(struct sockaddr_in); 827 } 828 rtm_addrs |= which; 829 switch (which) { 830 case RTA_DST: 831 su = &so_dst; 832 su->sa.sa_family = af; 833 break; 834 case RTA_GATEWAY: 835 su = &so_gate; 836 if (iflag) { 837 #define MAX_IFACES 400 838 int sock; 839 struct ifreq iflist[MAX_IFACES]; 840 struct ifconf ifconf; 841 struct ifreq *ifr, *ifr_end; 842 struct sockaddr_dl *dl, *sdl = NULL; 843 844 /* Get socket */ 845 if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0) 846 err(1, "socket"); 847 848 /* Get interface list */ 849 ifconf.ifc_req = iflist; 850 ifconf.ifc_len = sizeof(iflist); 851 if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0) 852 err(1, "ioctl(SIOCGIFCONF)"); 853 close(sock); 854 855 /* Look for this interface in the list */ 856 for (ifr = ifconf.ifc_req, 857 ifr_end = (struct ifreq *) 858 (ifconf.ifc_buf + ifconf.ifc_len); 859 ifr < ifr_end; 860 ifr = (struct ifreq *) ((char *) &ifr->ifr_addr 861 + ifr->ifr_addr.sa_len)) { 862 dl = (struct sockaddr_dl *)&ifr->ifr_addr; 863 if (ifr->ifr_addr.sa_family == AF_LINK 864 && (ifr->ifr_flags & IFF_POINTOPOINT) 865 && !strncmp(s, dl->sdl_data, dl->sdl_nlen) 866 && s[dl->sdl_nlen] == 0) { 867 sdl = dl; 868 break; 869 } 870 } 871 872 /* If we found it, then use it */ 873 if (sdl) { 874 su->sdl = *sdl; 875 return(1); 876 } 877 } 878 su->sa.sa_family = af; 879 break; 880 case RTA_NETMASK: 881 su = &so_mask; 882 break; 883 case RTA_GENMASK: 884 su = &so_genmask; 885 break; 886 case RTA_IFP: 887 su = &so_ifp; 888 su->sa.sa_family = af; 889 break; 890 case RTA_IFA: 891 su = &so_ifa; 892 su->sa.sa_family = af; 893 break; 894 default: 895 usage("Internal Error"); 896 /*NOTREACHED*/ 897 } 898 su->sa.sa_len = aflen; 899 if (strcmp(s, "default") == 0) { 900 switch (which) { 901 case RTA_DST: 902 forcenet++; 903 (void) getaddr(RTA_NETMASK, s, 0); 904 break; 905 case RTA_NETMASK: 906 case RTA_GENMASK: 907 su->sa.sa_len = 0; 908 } 909 return (0); 910 } 911 switch (af) { 912 #ifdef NS 913 case AF_NS: 914 if (which == RTA_DST) { 915 extern short ns_bh[3]; 916 struct sockaddr_ns *sms = &(so_mask.sns); 917 bzero((char *)sms, sizeof(*sms)); 918 sms->sns_family = 0; 919 sms->sns_len = 6; 920 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 921 rtm_addrs |= RTA_NETMASK; 922 } 923 su->sns.sns_addr = ns_addr(s); 924 return (!ns_nullhost(su->sns.sns_addr)); 925 #endif 926 927 #ifdef ISO 928 case AF_OSI: 929 su->siso.siso_addr = *iso_addr(s); 930 if (which == RTA_NETMASK || which == RTA_GENMASK) { 931 register char *cp = (char *)TSEL(&su->siso); 932 su->siso.siso_nlen = 0; 933 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 934 su->siso.siso_len = 1 + cp - (char *)su; 935 } 936 return (1); 937 #endif 938 939 case AF_APPLETALK: 940 if (!atalk_aton(s, &su->sat.sat_addr)) 941 errx(EX_NOHOST, "bad address: %s", s); 942 rtm_addrs |= RTA_NETMASK; 943 return(forcehost || su->sat.sat_addr.s_node != 0); 944 945 case AF_LINK: 946 link_addr(s, &su->sdl); 947 return (1); 948 949 #ifdef ISO 950 case AF_CCITT: 951 ccitt_addr(s, &su->sx25); 952 return (which == RTA_DST ? x25_makemask() : 1); 953 #endif 954 955 case PF_ROUTE: 956 su->sa.sa_len = sizeof(*su); 957 sockaddr(s, &su->sa); 958 return (1); 959 960 case AF_INET: 961 default: 962 break; 963 } 964 965 if (hpp == NULL) 966 hpp = &hp; 967 *hpp = NULL; 968 if (((val = inet_addr(s)) != INADDR_NONE) && 969 (which != RTA_DST || forcenet == 0)) { 970 su->sin.sin_addr.s_addr = val; 971 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 972 return (1); 973 else { 974 val = ntohl(val); 975 goto netdone; 976 } 977 } 978 if ((val = inet_network(s)) != INADDR_NONE || 979 (forcehost == 0 && (np = getnetbyname(s)) != NULL && 980 (val = np->n_net) != 0)) { 981 netdone: 982 if (which == RTA_DST) 983 inet_makenetandmask(val, &su->sin); 984 return (0); 985 } 986 hp = gethostbyname(s); 987 if (hp) { 988 *hpp = hp; 989 su->sin.sin_family = hp->h_addrtype; 990 bcopy(hp->h_addr, (char *)&su->sin.sin_addr, hp->h_length); 991 return (1); 992 } 993 errx(EX_NOHOST, "bad address: %s", s); 994 } 995 996 #ifdef CCITT 997 int 998 x25_makemask() 999 { 1000 register char *cp; 1001 1002 if ((rtm_addrs & RTA_NETMASK) == 0) { 1003 rtm_addrs |= RTA_NETMASK; 1004 for (cp = (char *)&so_mask.sx25.x25_net; 1005 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 1006 *cp = -1; 1007 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 1008 } 1009 return 0; 1010 } 1011 #endif 1012 1013 #ifdef NS 1014 short ns_nullh[] = {0,0,0}; 1015 short ns_bh[] = {-1,-1,-1}; 1016 1017 char * 1018 ns_print(sns) 1019 struct sockaddr_ns *sns; 1020 { 1021 struct ns_addr work; 1022 union { union ns_net net_e; u_long long_e; } net; 1023 u_short port; 1024 static char mybuf[50], cport[10], chost[25]; 1025 char *host = ""; 1026 register char *p; 1027 register u_char *q; 1028 1029 work = sns->sns_addr; 1030 port = ntohs(work.x_port); 1031 work.x_port = 0; 1032 net.net_e = work.x_net; 1033 if (ns_nullhost(work) && net.long_e == 0) { 1034 if (!port) 1035 return ("*.*"); 1036 (void) sprintf(mybuf, "*.%XH", port); 1037 return (mybuf); 1038 } 1039 1040 if (bcmp((char *)ns_bh, (char *)work.x_host.c_host, 6) == 0) 1041 host = "any"; 1042 else if (bcmp((char *)ns_nullh, (char *)work.x_host.c_host, 6) == 0) 1043 host = "*"; 1044 else { 1045 q = work.x_host.c_host; 1046 (void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH", 1047 q[0], q[1], q[2], q[3], q[4], q[5]); 1048 for (p = chost; *p == '0' && p < chost + 12; p++) 1049 /* void */; 1050 host = p; 1051 } 1052 if (port) 1053 (void) sprintf(cport, ".%XH", htons(port)); 1054 else 1055 *cport = 0; 1056 1057 (void) sprintf(mybuf,"%lxH.%s%s", (unsigned long)ntohl(net.long_e), 1058 host, cport); 1059 return (mybuf); 1060 } 1061 #endif 1062 1063 void 1064 interfaces() 1065 { 1066 size_t needed; 1067 int mib[6]; 1068 char *buf, *lim, *next; 1069 register struct rt_msghdr *rtm; 1070 1071 mib[0] = CTL_NET; 1072 mib[1] = PF_ROUTE; 1073 mib[2] = 0; /* protocol */ 1074 mib[3] = 0; /* wildcard address family */ 1075 mib[4] = NET_RT_IFLIST; 1076 mib[5] = 0; /* no flags */ 1077 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1078 err(EX_OSERR, "route-sysctl-estimate"); 1079 if ((buf = malloc(needed)) == NULL) 1080 err(EX_OSERR, "malloc"); 1081 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 1082 err(EX_OSERR, "actual retrieval of interface table"); 1083 lim = buf + needed; 1084 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1085 rtm = (struct rt_msghdr *)next; 1086 print_rtmsg(rtm, rtm->rtm_msglen); 1087 } 1088 } 1089 1090 void 1091 monitor() 1092 { 1093 int n; 1094 char msg[2048]; 1095 1096 verbose = 1; 1097 if (debugonly) { 1098 interfaces(); 1099 exit(0); 1100 } 1101 for(;;) { 1102 n = read(s, msg, 2048); 1103 (void) printf("got message of size %d\n", n); 1104 print_rtmsg((struct rt_msghdr *)msg, n); 1105 } 1106 } 1107 1108 struct { 1109 struct rt_msghdr m_rtm; 1110 char m_space[512]; 1111 } m_rtmsg; 1112 1113 int 1114 rtmsg(cmd, flags) 1115 int cmd, flags; 1116 { 1117 static int seq; 1118 int rlen; 1119 register char *cp = m_rtmsg.m_space; 1120 register int l; 1121 1122 #define NEXTADDR(w, u) \ 1123 if (rtm_addrs & (w)) {\ 1124 l = ROUNDUP(u.sa.sa_len); bcopy((char *)&(u), cp, l); cp += l;\ 1125 if (verbose) sodump(&(u),"u");\ 1126 } 1127 1128 errno = 0; 1129 bzero((char *)&m_rtmsg, sizeof(m_rtmsg)); 1130 if (cmd == 'a') 1131 cmd = RTM_ADD; 1132 else if (cmd == 'c') 1133 cmd = RTM_CHANGE; 1134 else if (cmd == 'g') { 1135 cmd = RTM_GET; 1136 if (so_ifp.sa.sa_family == 0) { 1137 so_ifp.sa.sa_family = AF_LINK; 1138 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1139 rtm_addrs |= RTA_IFP; 1140 } 1141 } else 1142 cmd = RTM_DELETE; 1143 #define rtm m_rtmsg.m_rtm 1144 rtm.rtm_type = cmd; 1145 rtm.rtm_flags = flags; 1146 rtm.rtm_version = RTM_VERSION; 1147 rtm.rtm_seq = ++seq; 1148 rtm.rtm_addrs = rtm_addrs; 1149 rtm.rtm_rmx = rt_metrics; 1150 rtm.rtm_inits = rtm_inits; 1151 1152 if (rtm_addrs & RTA_NETMASK) 1153 mask_addr(); 1154 NEXTADDR(RTA_DST, so_dst); 1155 NEXTADDR(RTA_GATEWAY, so_gate); 1156 NEXTADDR(RTA_NETMASK, so_mask); 1157 NEXTADDR(RTA_GENMASK, so_genmask); 1158 NEXTADDR(RTA_IFP, so_ifp); 1159 NEXTADDR(RTA_IFA, so_ifa); 1160 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1161 if (verbose) 1162 print_rtmsg(&rtm, l); 1163 if (debugonly) 1164 return (0); 1165 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { 1166 perror("writing to routing socket"); 1167 return (-1); 1168 } 1169 if (cmd == RTM_GET) { 1170 do { 1171 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1172 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1173 if (l < 0) 1174 warn("read from routing socket"); 1175 else 1176 print_getmsg(&rtm, l); 1177 } 1178 #undef rtm 1179 return (0); 1180 } 1181 1182 void 1183 mask_addr() 1184 { 1185 int olen = so_mask.sa.sa_len; 1186 register char *cp1 = olen + (char *)&so_mask, *cp2; 1187 1188 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1189 if (*--cp1 != 0) { 1190 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1191 break; 1192 } 1193 if ((rtm_addrs & RTA_DST) == 0) 1194 return; 1195 switch (so_dst.sa.sa_family) { 1196 #ifdef NS 1197 case AF_NS: 1198 #endif 1199 case AF_INET: 1200 case AF_APPLETALK: 1201 #ifdef CCITT 1202 case AF_CCITT: 1203 #endif 1204 case 0: 1205 return; 1206 #ifdef ISO 1207 case AF_ISO: 1208 olen = MIN(so_dst.siso.siso_nlen, 1209 MAX(so_mask.sa.sa_len - 6, 0)); 1210 break; 1211 #endif 1212 } 1213 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1214 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1215 while (cp2 > cp1) 1216 *--cp2 = 0; 1217 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1218 while (cp1 > so_dst.sa.sa_data) 1219 *--cp1 &= *--cp2; 1220 #ifdef ISO 1221 switch (so_dst.sa.sa_family) { 1222 case AF_ISO: 1223 so_dst.siso.siso_nlen = olen; 1224 break; 1225 } 1226 #endif 1227 } 1228 1229 char *msgtypes[] = { 1230 "", 1231 "RTM_ADD: Add Route", 1232 "RTM_DELETE: Delete Route", 1233 "RTM_CHANGE: Change Metrics or flags", 1234 "RTM_GET: Report Metrics", 1235 "RTM_LOSING: Kernel Suspects Partitioning", 1236 "RTM_REDIRECT: Told to use different route", 1237 "RTM_MISS: Lookup failed on this address", 1238 "RTM_LOCK: fix specified metrics", 1239 "RTM_OLDADD: caused by SIOCADDRT", 1240 "RTM_OLDDEL: caused by SIOCDELRT", 1241 "RTM_RESOLVE: Route created by cloning", 1242 "RTM_NEWADDR: address being added to iface", 1243 "RTM_DELADDR: address being removed from iface", 1244 "RTM_IFINFO: iface status change", 1245 0, 1246 }; 1247 1248 char metricnames[] = 1249 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount" 1250 "\1mtu"; 1251 char routeflags[] = 1252 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT" 1253 "\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016" 1254 "\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE" 1255 "\025PINNED\026LOCAL\027BROADCAST\030MULTICAST"; 1256 char ifnetflags[] = 1257 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP" 1258 "\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1" 1259 "\017LINK2\020MULTICAST"; 1260 char addrnames[] = 1261 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1262 1263 void 1264 print_rtmsg(rtm, msglen) 1265 register struct rt_msghdr *rtm; 1266 int msglen; 1267 { 1268 struct if_msghdr *ifm; 1269 struct ifa_msghdr *ifam; 1270 1271 if (verbose == 0) 1272 return; 1273 if (rtm->rtm_version != RTM_VERSION) { 1274 (void) printf("routing message version %d not understood\n", 1275 rtm->rtm_version); 1276 return; 1277 } 1278 (void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen); 1279 switch (rtm->rtm_type) { 1280 case RTM_IFINFO: 1281 ifm = (struct if_msghdr *)rtm; 1282 (void) printf("if# %d, flags:", ifm->ifm_index); 1283 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1284 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1285 break; 1286 case RTM_NEWADDR: 1287 case RTM_DELADDR: 1288 ifam = (struct ifa_msghdr *)rtm; 1289 (void) printf("metric %d, flags:", ifam->ifam_metric); 1290 bprintf(stdout, ifam->ifam_flags, routeflags); 1291 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1292 break; 1293 default: 1294 (void) printf("pid: %ld, seq %d, errno %d, flags:", 1295 (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1296 bprintf(stdout, rtm->rtm_flags, routeflags); 1297 pmsg_common(rtm); 1298 } 1299 } 1300 1301 void 1302 print_getmsg(rtm, msglen) 1303 register struct rt_msghdr *rtm; 1304 int msglen; 1305 { 1306 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; 1307 struct sockaddr_dl *ifp = NULL; 1308 register struct sockaddr *sa; 1309 register char *cp; 1310 register int i; 1311 1312 (void) printf(" route to: %s\n", routename(&so_dst)); 1313 if (rtm->rtm_version != RTM_VERSION) { 1314 warnx("routing message version %d not understood", 1315 rtm->rtm_version); 1316 return; 1317 } 1318 if (rtm->rtm_msglen > msglen) { 1319 warnx("message length mismatch, in packet %d, returned %d\n", 1320 rtm->rtm_msglen, msglen); 1321 } 1322 if (rtm->rtm_errno) { 1323 errno = rtm->rtm_errno; 1324 warn("message indicates error %d", errno); 1325 return; 1326 } 1327 cp = ((char *)(rtm + 1)); 1328 if (rtm->rtm_addrs) 1329 for (i = 1; i; i <<= 1) 1330 if (i & rtm->rtm_addrs) { 1331 sa = (struct sockaddr *)cp; 1332 switch (i) { 1333 case RTA_DST: 1334 dst = sa; 1335 break; 1336 case RTA_GATEWAY: 1337 gate = sa; 1338 break; 1339 case RTA_NETMASK: 1340 mask = sa; 1341 break; 1342 case RTA_IFP: 1343 if (sa->sa_family == AF_LINK && 1344 ((struct sockaddr_dl *)sa)->sdl_nlen) 1345 ifp = (struct sockaddr_dl *)sa; 1346 break; 1347 } 1348 ADVANCE(cp, sa); 1349 } 1350 if (dst && mask) 1351 mask->sa_family = dst->sa_family; /* XXX */ 1352 if (dst) 1353 (void)printf("destination: %s\n", routename(dst)); 1354 if (mask) { 1355 int savenflag = nflag; 1356 1357 nflag = 1; 1358 (void)printf(" mask: %s\n", routename(mask)); 1359 nflag = savenflag; 1360 } 1361 if (gate && rtm->rtm_flags & RTF_GATEWAY) 1362 (void)printf(" gateway: %s\n", routename(gate)); 1363 if (ifp) 1364 (void)printf(" interface: %.*s\n", 1365 ifp->sdl_nlen, ifp->sdl_data); 1366 (void)printf(" flags: "); 1367 bprintf(stdout, rtm->rtm_flags, routeflags); 1368 1369 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1370 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1371 1372 (void) printf("\n%s\n", "\ 1373 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1374 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1375 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1376 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1377 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1378 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1379 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1380 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1381 if (rtm->rtm_rmx.rmx_expire) 1382 rtm->rtm_rmx.rmx_expire -= time(0); 1383 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1384 #undef lock 1385 #undef msec 1386 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1387 if (verbose) 1388 pmsg_common(rtm); 1389 else if (rtm->rtm_addrs &~ RTA_IGN) { 1390 (void) printf("sockaddrs: "); 1391 bprintf(stdout, rtm->rtm_addrs, addrnames); 1392 putchar('\n'); 1393 } 1394 #undef RTA_IGN 1395 } 1396 1397 void 1398 pmsg_common(rtm) 1399 register struct rt_msghdr *rtm; 1400 { 1401 (void) printf("\nlocks: "); 1402 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1403 (void) printf(" inits: "); 1404 bprintf(stdout, rtm->rtm_inits, metricnames); 1405 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1406 } 1407 1408 void 1409 pmsg_addrs(cp, addrs) 1410 char *cp; 1411 int addrs; 1412 { 1413 register struct sockaddr *sa; 1414 int i; 1415 1416 if (addrs == 0) 1417 return; 1418 (void) printf("\nsockaddrs: "); 1419 bprintf(stdout, addrs, addrnames); 1420 (void) putchar('\n'); 1421 for (i = 1; i; i <<= 1) 1422 if (i & addrs) { 1423 sa = (struct sockaddr *)cp; 1424 (void) printf(" %s", routename(sa)); 1425 ADVANCE(cp, sa); 1426 } 1427 (void) putchar('\n'); 1428 (void) fflush(stdout); 1429 } 1430 1431 void 1432 bprintf(fp, b, s) 1433 register FILE *fp; 1434 register int b; 1435 register u_char *s; 1436 { 1437 register int i; 1438 int gotsome = 0; 1439 1440 if (b == 0) 1441 return; 1442 while ((i = *s++) != 0) { 1443 if (b & (1 << (i-1))) { 1444 if (gotsome == 0) 1445 i = '<'; 1446 else 1447 i = ','; 1448 (void) putc(i, fp); 1449 gotsome = 1; 1450 for (; (i = *s) > 32; s++) 1451 (void) putc(i, fp); 1452 } else 1453 while (*s > 32) 1454 s++; 1455 } 1456 if (gotsome) 1457 (void) putc('>', fp); 1458 } 1459 1460 int 1461 keyword(cp) 1462 char *cp; 1463 { 1464 register struct keytab *kt = keywords; 1465 1466 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 1467 kt++; 1468 return kt->kt_i; 1469 } 1470 1471 void 1472 sodump(su, which) 1473 register sup su; 1474 char *which; 1475 { 1476 switch (su->sa.sa_family) { 1477 case AF_LINK: 1478 (void) printf("%s: link %s; ", 1479 which, link_ntoa(&su->sdl)); 1480 break; 1481 #ifdef ISO 1482 case AF_ISO: 1483 (void) printf("%s: iso %s; ", 1484 which, iso_ntoa(&su->siso.siso_addr)); 1485 break; 1486 #endif 1487 case AF_INET: 1488 (void) printf("%s: inet %s; ", 1489 which, inet_ntoa(su->sin.sin_addr)); 1490 break; 1491 case AF_APPLETALK: 1492 (void) printf("%s: atalk %s; ", 1493 which, atalk_ntoa(su->sat.sat_addr)); 1494 break; 1495 #ifdef NS 1496 case AF_NS: 1497 (void) printf("%s: xns %s; ", 1498 which, ns_ntoa(su->sns.sns_addr)); 1499 break; 1500 #endif 1501 } 1502 (void) fflush(stdout); 1503 } 1504 1505 /* States*/ 1506 #define VIRGIN 0 1507 #define GOTONE 1 1508 #define GOTTWO 2 1509 /* Inputs */ 1510 #define DIGIT (4*0) 1511 #define END (4*1) 1512 #define DELIM (4*2) 1513 1514 void 1515 sockaddr(addr, sa) 1516 register char *addr; 1517 register struct sockaddr *sa; 1518 { 1519 register char *cp = (char *)sa; 1520 int size = sa->sa_len; 1521 char *cplim = cp + size; 1522 register int byte = 0, state = VIRGIN, new = 0 /* foil gcc */; 1523 1524 bzero(cp, size); 1525 cp++; 1526 do { 1527 if ((*addr >= '0') && (*addr <= '9')) { 1528 new = *addr - '0'; 1529 } else if ((*addr >= 'a') && (*addr <= 'f')) { 1530 new = *addr - 'a' + 10; 1531 } else if ((*addr >= 'A') && (*addr <= 'F')) { 1532 new = *addr - 'A' + 10; 1533 } else if (*addr == 0) 1534 state |= END; 1535 else 1536 state |= DELIM; 1537 addr++; 1538 switch (state /* | INPUT */) { 1539 case GOTTWO | DIGIT: 1540 *cp++ = byte; /*FALLTHROUGH*/ 1541 case VIRGIN | DIGIT: 1542 state = GOTONE; byte = new; continue; 1543 case GOTONE | DIGIT: 1544 state = GOTTWO; byte = new + (byte << 4); continue; 1545 default: /* | DELIM */ 1546 state = VIRGIN; *cp++ = byte; byte = 0; continue; 1547 case GOTONE | END: 1548 case GOTTWO | END: 1549 *cp++ = byte; /* FALLTHROUGH */ 1550 case VIRGIN | END: 1551 break; 1552 } 1553 break; 1554 } while (cp < cplim); 1555 sa->sa_len = cp - (char *)sa; 1556 } 1557 1558 int 1559 atalk_aton(const char *text, struct at_addr *addr) 1560 { 1561 u_int net, node; 1562 1563 if (sscanf(text, "%u.%u", &net, &node) != 2 1564 || net > 0xffff || node > 0xff) 1565 return(0); 1566 addr->s_net = htons(net); 1567 addr->s_node = node; 1568 return(1); 1569 } 1570 1571 char * 1572 atalk_ntoa(struct at_addr at) 1573 { 1574 static char buf[20]; 1575 1576 (void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node); 1577 return(buf); 1578 } 1579