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 1.14 1996/08/19 18:52:49 julian 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/mbuf.h> 54 #include <sys/sysctl.h> 55 56 #include <net/if.h> 57 #include <net/route.h> 58 #include <net/if_dl.h> 59 #include <netinet/in.h> 60 #include <netatalk/at.h> 61 #ifdef NS 62 #include <netns/ns.h> 63 #endif 64 #ifdef ISO 65 #include <netiso/iso.h> 66 #endif 67 #ifdef CCITT 68 #include <netccitt/x25.h> 69 #endif 70 #include <arpa/inet.h> 71 #include <netdb.h> 72 73 #include <errno.h> 74 #include <unistd.h> 75 #include <stdio.h> 76 #include <ctype.h> 77 #include <stdlib.h> 78 #include <string.h> 79 #include <paths.h> 80 #include <err.h> 81 #include <sysexits.h> 82 83 struct keytab { 84 char *kt_cp; 85 int kt_i; 86 } keywords[] = { 87 #include "keywords.h" 88 {0, 0} 89 }; 90 91 struct ortentry route; 92 union sockunion { 93 struct sockaddr sa; 94 struct sockaddr_in sin; 95 struct sockaddr_at sat; 96 #ifdef NS 97 struct sockaddr_ns sns; 98 #endif 99 #ifdef ISO 100 struct sockaddr_iso siso; 101 #endif 102 struct sockaddr_dl sdl; 103 #ifdef CCITT 104 struct sockaddr_x25 sx25; 105 #endif 106 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 107 108 typedef union sockunion *sup; 109 int pid, rtm_addrs, uid; 110 int s; 111 int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword(); 112 int iflag, verbose, aflen = sizeof (struct sockaddr_in); 113 int locking, lockrest, debugonly; 114 struct rt_metrics rt_metrics; 115 u_long rtm_inits; 116 struct in_addr inet_makeaddr(); 117 int atalk_aton __P((const char *, struct at_addr *)); 118 char *atalk_ntoa __P((struct at_addr)); 119 char *routename(), *netname(); 120 void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf(); 121 void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr(); 122 int getaddr(), rtmsg(), x25_makemask(); 123 extern char *inet_ntoa(), *iso_ntoa(), *link_ntoa(); 124 #ifdef CCITT 125 extern int ccitt_addr __P((char *, struct sockaddr_x25 *)); 126 #endif 127 128 void usage __P((const char *)) __dead2; 129 130 void 131 usage(cp) 132 const char *cp; 133 { 134 if (cp) 135 warnx("bad keyword: %s", cp); 136 (void) fprintf(stderr, 137 "usage: route [ -nqv ] cmd [[ -<qualifers> ] args ]\n"); 138 exit(EX_USAGE); 139 /* NOTREACHED */ 140 } 141 142 #define ROUNDUP(a) \ 143 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 144 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 145 146 int 147 main(argc, argv) 148 int argc; 149 char **argv; 150 { 151 extern int optind; 152 int ch; 153 154 if (argc < 2) 155 usage((char *)NULL); 156 157 while ((ch = getopt(argc, argv, "nqdtv")) != EOF) 158 switch(ch) { 159 case 'n': 160 nflag = 1; 161 break; 162 case 'q': 163 qflag = 1; 164 break; 165 case 'v': 166 verbose = 1; 167 break; 168 case 't': 169 tflag = 1; 170 break; 171 case 'd': 172 debugonly = 1; 173 break; 174 case '?': 175 default: 176 usage((char *)NULL); 177 } 178 argc -= optind; 179 argv += optind; 180 181 pid = getpid(); 182 uid = getuid(); 183 if (tflag) 184 s = open("/dev/null", O_WRONLY, 0); 185 else 186 s = socket(PF_ROUTE, SOCK_RAW, 0); 187 if (s < 0) 188 err(EX_OSERR, "socket"); 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[50]; 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 (void) strcpy(domain, cp + 1); 338 else 339 domain[0] = 0; 340 } 341 342 if (sa->sa_len == 0) 343 strcpy(line, "default"); 344 else switch (sa->sa_family) { 345 346 case AF_INET: 347 { struct in_addr in; 348 in = ((struct sockaddr_in *)sa)->sin_addr; 349 350 cp = 0; 351 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) 352 cp = "default"; 353 if (cp == 0 && !nflag) { 354 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 355 AF_INET); 356 if (hp) { 357 if ((cp = index(hp->h_name, '.')) && 358 !strcmp(cp + 1, domain)) 359 *cp = 0; 360 cp = hp->h_name; 361 } 362 } 363 if (cp) 364 strcpy(line, cp); 365 else { 366 /* XXX - why not inet_ntoa()? */ 367 #define C(x) (unsigned)((x) & 0xff) 368 in.s_addr = ntohl(in.s_addr); 369 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 370 C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); 371 } 372 break; 373 } 374 375 case AF_APPLETALK: 376 (void) snprintf(line, sizeof(line), "atalk %s", 377 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 378 break; 379 380 #ifdef NS 381 case AF_NS: 382 return (ns_print((struct sockaddr_ns *)sa)); 383 #endif 384 385 case AF_LINK: 386 return (link_ntoa((struct sockaddr_dl *)sa)); 387 388 #ifdef ISO 389 case AF_ISO: 390 (void) sprintf(line, "iso %s", 391 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 392 break; 393 #endif 394 default: 395 { u_short *s = (u_short *)sa; 396 u_short *slim = s + ((sa->sa_len + 1) >> 1); 397 char *cp = line + sprintf(line, "(%d)", sa->sa_family); 398 399 while (++s < slim) /* start with sa->sa_data */ 400 cp += sprintf(cp, " %x", *s); 401 break; 402 } 403 } 404 return (line); 405 } 406 407 /* 408 * Return the name of the network whose address is given. 409 * The address is assumed to be that of a net or subnet, not a host. 410 */ 411 char * 412 netname(sa) 413 struct sockaddr *sa; 414 { 415 char *cp = 0; 416 static char line[50]; 417 struct netent *np = 0; 418 u_long net, mask; 419 register u_long i; 420 int subnetshift; 421 #ifdef NS 422 char *ns_print(); 423 #endif 424 425 switch (sa->sa_family) { 426 427 case AF_INET: 428 { struct in_addr in; 429 in = ((struct sockaddr_in *)sa)->sin_addr; 430 431 i = in.s_addr = ntohl(in.s_addr); 432 if (in.s_addr == 0) 433 cp = "default"; 434 else if (!nflag) { 435 if (IN_CLASSA(i)) { 436 mask = IN_CLASSA_NET; 437 subnetshift = 8; 438 } else if (IN_CLASSB(i)) { 439 mask = IN_CLASSB_NET; 440 subnetshift = 8; 441 } else { 442 mask = IN_CLASSC_NET; 443 subnetshift = 4; 444 } 445 /* 446 * If there are more bits than the standard mask 447 * would suggest, subnets must be in use. 448 * Guess at the subnet mask, assuming reasonable 449 * width subnet fields. 450 */ 451 while (in.s_addr &~ mask) 452 mask = (long)mask >> subnetshift; 453 net = in.s_addr & mask; 454 while ((mask & 1) == 0) 455 mask >>= 1, net >>= 1; 456 np = getnetbyaddr(net, AF_INET); 457 if (np) 458 cp = np->n_name; 459 } 460 if (cp) 461 strcpy(line, cp); 462 else if ((in.s_addr & 0xffffff) == 0) 463 (void) sprintf(line, "%u", C(in.s_addr >> 24)); 464 else if ((in.s_addr & 0xffff) == 0) 465 (void) sprintf(line, "%u.%u", C(in.s_addr >> 24), 466 C(in.s_addr >> 16)); 467 else if ((in.s_addr & 0xff) == 0) 468 (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24), 469 C(in.s_addr >> 16), C(in.s_addr >> 8)); 470 else 471 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 472 C(in.s_addr >> 16), C(in.s_addr >> 8), 473 C(in.s_addr)); 474 break; 475 } 476 477 case AF_APPLETALK: 478 (void) snprintf(line, sizeof(line), "atalk %s", 479 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 480 break; 481 482 #ifdef NS 483 case AF_NS: 484 return (ns_print((struct sockaddr_ns *)sa)); 485 break; 486 #endif 487 488 case AF_LINK: 489 return (link_ntoa((struct sockaddr_dl *)sa)); 490 491 #ifdef ISO 492 case AF_ISO: 493 (void) sprintf(line, "iso %s", 494 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 495 break; 496 #endif 497 498 default: 499 { u_short *s = (u_short *)sa->sa_data; 500 u_short *slim = s + ((sa->sa_len + 1)>>1); 501 char *cp = line + sprintf(line, "af %d:", sa->sa_family); 502 503 while (s < slim) 504 cp += sprintf(cp, " %x", *s++); 505 break; 506 } 507 } 508 return (line); 509 } 510 511 void 512 set_metric(value, key) 513 char *value; 514 int key; 515 { 516 int flag = 0; 517 u_long noval, *valp = &noval; 518 519 switch (key) { 520 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 521 caseof(K_MTU, RTV_MTU, rmx_mtu); 522 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 523 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 524 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 525 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 526 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 527 caseof(K_RTT, RTV_RTT, rmx_rtt); 528 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 529 } 530 rtm_inits |= flag; 531 if (lockrest || locking) 532 rt_metrics.rmx_locks |= flag; 533 if (locking) 534 locking = 0; 535 *valp = atoi(value); 536 } 537 538 void 539 newroute(argc, argv) 540 int argc; 541 register char **argv; 542 { 543 char *cmd, *dest = "", *gateway = "", *err; 544 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 545 int key; 546 struct hostent *hp = 0; 547 548 if (uid) { 549 errx(EX_NOPERM, "must be root to alter routing table"); 550 } 551 cmd = argv[0]; 552 if (*cmd != 'g') 553 shutdown(s, 0); /* Don't want to read back our messages */ 554 while (--argc > 0) { 555 if (**(++argv)== '-') { 556 switch (key = keyword(1 + *argv)) { 557 case K_LINK: 558 af = AF_LINK; 559 aflen = sizeof(struct sockaddr_dl); 560 break; 561 #ifdef ISO 562 case K_OSI: 563 case K_ISO: 564 af = AF_ISO; 565 aflen = sizeof(struct sockaddr_iso); 566 break; 567 #endif 568 case K_INET: 569 af = AF_INET; 570 aflen = sizeof(struct sockaddr_in); 571 break; 572 case K_ATALK: 573 af = AF_APPLETALK; 574 aflen = sizeof(struct sockaddr_at); 575 break; 576 #ifdef CCITT 577 case K_X25: 578 af = AF_CCITT; 579 aflen = sizeof(struct sockaddr_x25); 580 break; 581 #endif 582 case K_SA: 583 af = PF_ROUTE; 584 aflen = sizeof(union sockunion); 585 break; 586 #ifdef NS 587 case K_XNS: 588 af = AF_NS; 589 aflen = sizeof(struct sockaddr_ns); 590 break; 591 #endif 592 case K_IFACE: 593 case K_INTERFACE: 594 iflag++; 595 break; 596 case K_NOSTATIC: 597 flags &= ~RTF_STATIC; 598 break; 599 case K_LLINFO: 600 flags |= RTF_LLINFO; 601 break; 602 case K_LOCK: 603 locking = 1; 604 break; 605 case K_LOCKREST: 606 lockrest = 1; 607 break; 608 case K_HOST: 609 forcehost++; 610 break; 611 case K_REJECT: 612 flags |= RTF_REJECT; 613 break; 614 case K_BLACKHOLE: 615 flags |= RTF_BLACKHOLE; 616 break; 617 case K_PROTO1: 618 flags |= RTF_PROTO1; 619 break; 620 case K_PROTO2: 621 flags |= RTF_PROTO2; 622 break; 623 case K_CLONING: 624 flags |= RTF_CLONING; 625 break; 626 case K_XRESOLVE: 627 flags |= RTF_XRESOLVE; 628 break; 629 case K_STATIC: 630 flags |= RTF_STATIC; 631 break; 632 case K_IFA: 633 argc--; 634 (void) getaddr(RTA_IFA, *++argv, 0); 635 break; 636 case K_IFP: 637 argc--; 638 (void) getaddr(RTA_IFP, *++argv, 0); 639 break; 640 case K_GENMASK: 641 argc--; 642 (void) getaddr(RTA_GENMASK, *++argv, 0); 643 break; 644 case K_GATEWAY: 645 argc--; 646 (void) getaddr(RTA_GATEWAY, *++argv, 0); 647 break; 648 case K_DST: 649 argc--; 650 ishost = getaddr(RTA_DST, *++argv, &hp); 651 dest = *argv; 652 break; 653 case K_NETMASK: 654 argc--; 655 (void) getaddr(RTA_NETMASK, *++argv, 0); 656 /* FALLTHROUGH */ 657 case K_NET: 658 forcenet++; 659 break; 660 case K_MTU: 661 case K_HOPCOUNT: 662 case K_EXPIRE: 663 case K_RECVPIPE: 664 case K_SENDPIPE: 665 case K_SSTHRESH: 666 case K_RTT: 667 case K_RTTVAR: 668 argc--; 669 set_metric(*++argv, key); 670 break; 671 default: 672 usage(1+*argv); 673 } 674 } else { 675 if ((rtm_addrs & RTA_DST) == 0) { 676 dest = *argv; 677 ishost = getaddr(RTA_DST, *argv, &hp); 678 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 679 gateway = *argv; 680 (void) getaddr(RTA_GATEWAY, *argv, &hp); 681 } else { 682 #ifdef CRUFT 683 int ret = atoi(*argv); 684 685 if (ret == 0) { 686 if (strcmp(*argv, "0") == 0) 687 printf("%s,%s", 688 "old usage of trailing 0", 689 "assuming route to if\n"); 690 else 691 usage((char *)NULL); 692 iflag = 1; 693 continue; 694 } else if (ret > 0 && ret < 10) { 695 printf("old usage of trailing digit, "); 696 printf("assuming route via gateway\n"); 697 iflag = 0; 698 continue; 699 } 700 #endif 701 (void) getaddr(RTA_NETMASK, *argv, 0); 702 } 703 } 704 } 705 if (forcehost) 706 ishost = 1; 707 if (forcenet) 708 ishost = 0; 709 flags |= RTF_UP; 710 if (ishost) 711 flags |= RTF_HOST; 712 if (iflag == 0) 713 flags |= RTF_GATEWAY; 714 for (attempts = 1; ; attempts++) { 715 errno = 0; 716 if ((ret = rtmsg(*cmd, flags)) == 0) 717 break; 718 if (errno != ENETUNREACH && errno != ESRCH) 719 break; 720 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 721 hp->h_addr_list++; 722 bcopy(hp->h_addr_list[0], &so_gate.sin.sin_addr, 723 hp->h_length); 724 } else 725 break; 726 } 727 if (*cmd == 'g') 728 exit(0); 729 oerrno = errno; 730 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); 731 if (*gateway) { 732 (void) printf(": gateway %s", gateway); 733 if (attempts > 1 && ret == 0 && af == AF_INET) 734 (void) printf(" (%s)", 735 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr)); 736 } 737 if (ret == 0) 738 (void) printf("\n"); 739 else { 740 switch (oerrno) { 741 case ESRCH: 742 err = "not in table"; 743 break; 744 case EBUSY: 745 err = "entry in use"; 746 break; 747 case ENOBUFS: 748 err = "routing table overflow"; 749 break; 750 default: 751 err = strerror(oerrno); 752 break; 753 } 754 (void) printf(": %s\n", err); 755 } 756 } 757 758 void 759 inet_makenetandmask(net, sin) 760 u_long net; 761 register struct sockaddr_in *sin; 762 { 763 u_long addr, mask = 0; 764 register char *cp; 765 766 rtm_addrs |= RTA_NETMASK; 767 if (net == 0) 768 mask = addr = 0; 769 else if (net < 128) { 770 addr = net << IN_CLASSA_NSHIFT; 771 mask = IN_CLASSA_NET; 772 } else if (net < 65536) { 773 addr = net << IN_CLASSB_NSHIFT; 774 mask = IN_CLASSB_NET; 775 } else if (net < 16777216L) { 776 addr = net << IN_CLASSC_NSHIFT; 777 mask = IN_CLASSC_NET; 778 } else { 779 addr = net; 780 if ((addr & IN_CLASSA_HOST) == 0) 781 mask = IN_CLASSA_NET; 782 else if ((addr & IN_CLASSB_HOST) == 0) 783 mask = IN_CLASSB_NET; 784 else if ((addr & IN_CLASSC_HOST) == 0) 785 mask = IN_CLASSC_NET; 786 else 787 mask = -1; 788 } 789 sin->sin_addr.s_addr = htonl(addr); 790 sin = &so_mask.sin; 791 sin->sin_addr.s_addr = htonl(mask); 792 sin->sin_len = 0; 793 sin->sin_family = 0; 794 cp = (char *)(&sin->sin_addr + 1); 795 while (*--cp == 0 && cp > (char *)sin) 796 ; 797 sin->sin_len = 1 + cp - (char *)sin; 798 } 799 800 /* 801 * Interpret an argument as a network address of some kind, 802 * returning 1 if a host address, 0 if a network address. 803 */ 804 int 805 getaddr(which, s, hpp) 806 int which; 807 char *s; 808 struct hostent **hpp; 809 { 810 register sup su; 811 #ifdef NS 812 struct ns_addr ns_addr(); 813 #endif 814 #ifdef ISO 815 struct iso_addr *iso_addr(); 816 #endif 817 struct hostent *hp; 818 struct netent *np; 819 u_long val; 820 821 if (af == 0) { 822 af = AF_INET; 823 aflen = sizeof(struct sockaddr_in); 824 } 825 rtm_addrs |= which; 826 switch (which) { 827 case RTA_DST: 828 su = &so_dst; 829 su->sa.sa_family = af; 830 break; 831 case RTA_GATEWAY: 832 su = &so_gate; 833 if (iflag) { 834 #define MAX_IFACES 400 835 int sock; 836 struct ifreq iflist[MAX_IFACES]; 837 struct ifconf ifconf; 838 struct ifreq *ifr, *ifr_end; 839 struct sockaddr_dl *dl, *sdl = NULL; 840 841 /* Get socket */ 842 if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0) 843 err(1, "socket"); 844 845 /* Get interface list */ 846 ifconf.ifc_req = iflist; 847 ifconf.ifc_len = sizeof(iflist); 848 if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0) 849 err(1, "ioctl(SIOCGIFCONF)"); 850 close(sock); 851 852 /* Look for this interface in the list */ 853 for (ifr = ifconf.ifc_req, 854 ifr_end = (struct ifreq *) 855 (ifconf.ifc_buf + ifconf.ifc_len); 856 ifr < ifr_end; 857 ifr = (struct ifreq *) ((char *) &ifr->ifr_addr 858 + ifr->ifr_addr.sa_len)) { 859 dl = (struct sockaddr_dl *)&ifr->ifr_addr; 860 if (ifr->ifr_addr.sa_family == AF_LINK 861 && (ifr->ifr_flags & IFF_POINTOPOINT) 862 && !strncmp(s, dl->sdl_data, dl->sdl_nlen) 863 && s[dl->sdl_nlen] == 0) { 864 sdl = dl; 865 break; 866 } 867 } 868 869 /* If we found it, then use it */ 870 if (sdl) { 871 su->sdl = *sdl; 872 return(1); 873 } 874 } 875 su->sa.sa_family = af; 876 break; 877 case RTA_NETMASK: 878 su = &so_mask; 879 break; 880 case RTA_GENMASK: 881 su = &so_genmask; 882 break; 883 case RTA_IFP: 884 su = &so_ifp; 885 su->sa.sa_family = af; 886 break; 887 case RTA_IFA: 888 su = &so_ifa; 889 su->sa.sa_family = af; 890 break; 891 default: 892 usage("Internal Error"); 893 /*NOTREACHED*/ 894 } 895 su->sa.sa_len = aflen; 896 if (strcmp(s, "default") == 0) { 897 switch (which) { 898 case RTA_DST: 899 forcenet++; 900 (void) getaddr(RTA_NETMASK, s, 0); 901 break; 902 case RTA_NETMASK: 903 case RTA_GENMASK: 904 su->sa.sa_len = 0; 905 } 906 return (0); 907 } 908 switch (af) { 909 #ifdef NS 910 case AF_NS: 911 if (which == RTA_DST) { 912 extern short ns_bh[3]; 913 struct sockaddr_ns *sms = &(so_mask.sns); 914 bzero((char *)sms, sizeof(*sms)); 915 sms->sns_family = 0; 916 sms->sns_len = 6; 917 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 918 rtm_addrs |= RTA_NETMASK; 919 } 920 su->sns.sns_addr = ns_addr(s); 921 return (!ns_nullhost(su->sns.sns_addr)); 922 #endif 923 924 #ifdef ISO 925 case AF_OSI: 926 su->siso.siso_addr = *iso_addr(s); 927 if (which == RTA_NETMASK || which == RTA_GENMASK) { 928 register char *cp = (char *)TSEL(&su->siso); 929 su->siso.siso_nlen = 0; 930 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 931 su->siso.siso_len = 1 + cp - (char *)su; 932 } 933 return (1); 934 #endif 935 936 case AF_APPLETALK: 937 if (!atalk_aton(s, &su->sat.sat_addr)) 938 errx(EX_NOHOST, "bad address: %s", s); 939 rtm_addrs |= RTA_NETMASK; 940 return(forcehost || su->sat.sat_addr.s_node != 0); 941 942 case AF_LINK: 943 link_addr(s, &su->sdl); 944 return (1); 945 946 #ifdef ISO 947 case AF_CCITT: 948 ccitt_addr(s, &su->sx25); 949 return (which == RTA_DST ? x25_makemask() : 1); 950 #endif 951 952 case PF_ROUTE: 953 su->sa.sa_len = sizeof(*su); 954 sockaddr(s, &su->sa); 955 return (1); 956 957 case AF_INET: 958 default: 959 break; 960 } 961 962 if (hpp == NULL) 963 hpp = &hp; 964 *hpp = NULL; 965 if (((val = inet_addr(s)) != INADDR_NONE) && 966 (which != RTA_DST || forcenet == 0)) { 967 su->sin.sin_addr.s_addr = val; 968 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 969 return (1); 970 else { 971 val = ntohl(val); 972 goto netdone; 973 } 974 } 975 if ((val = inet_network(s)) != INADDR_NONE || 976 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 977 netdone: 978 if (which == RTA_DST) 979 inet_makenetandmask(val, &su->sin); 980 return (0); 981 } 982 hp = gethostbyname(s); 983 if (hp) { 984 *hpp = hp; 985 su->sin.sin_family = hp->h_addrtype; 986 bcopy(hp->h_addr, (char *)&su->sin.sin_addr, hp->h_length); 987 return (1); 988 } 989 errx(EX_NOHOST, "bad address: %s", s); 990 } 991 992 #ifdef CCITT 993 int 994 x25_makemask() 995 { 996 register char *cp; 997 998 if ((rtm_addrs & RTA_NETMASK) == 0) { 999 rtm_addrs |= RTA_NETMASK; 1000 for (cp = (char *)&so_mask.sx25.x25_net; 1001 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 1002 *cp = -1; 1003 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 1004 } 1005 return 0; 1006 } 1007 #endif 1008 1009 #ifdef NS 1010 short ns_nullh[] = {0,0,0}; 1011 short ns_bh[] = {-1,-1,-1}; 1012 1013 char * 1014 ns_print(sns) 1015 struct sockaddr_ns *sns; 1016 { 1017 struct ns_addr work; 1018 union { union ns_net net_e; u_long long_e; } net; 1019 u_short port; 1020 static char mybuf[50], cport[10], chost[25]; 1021 char *host = ""; 1022 register char *p; 1023 register u_char *q; 1024 1025 work = sns->sns_addr; 1026 port = ntohs(work.x_port); 1027 work.x_port = 0; 1028 net.net_e = work.x_net; 1029 if (ns_nullhost(work) && net.long_e == 0) { 1030 if (!port) 1031 return ("*.*"); 1032 (void) sprintf(mybuf, "*.%XH", port); 1033 return (mybuf); 1034 } 1035 1036 if (bcmp((char *)ns_bh, (char *)work.x_host.c_host, 6) == 0) 1037 host = "any"; 1038 else if (bcmp((char *)ns_nullh, (char *)work.x_host.c_host, 6) == 0) 1039 host = "*"; 1040 else { 1041 q = work.x_host.c_host; 1042 (void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH", 1043 q[0], q[1], q[2], q[3], q[4], q[5]); 1044 for (p = chost; *p == '0' && p < chost + 12; p++) 1045 /* void */; 1046 host = p; 1047 } 1048 if (port) 1049 (void) sprintf(cport, ".%XH", htons(port)); 1050 else 1051 *cport = 0; 1052 1053 (void) sprintf(mybuf,"%lxH.%s%s", (unsigned long)ntohl(net.long_e), 1054 host, cport); 1055 return (mybuf); 1056 } 1057 #endif 1058 1059 void 1060 interfaces() 1061 { 1062 size_t needed; 1063 int mib[6]; 1064 char *buf, *lim, *next; 1065 register struct rt_msghdr *rtm; 1066 1067 mib[0] = CTL_NET; 1068 mib[1] = PF_ROUTE; 1069 mib[2] = 0; /* protocol */ 1070 mib[3] = 0; /* wildcard address family */ 1071 mib[4] = NET_RT_IFLIST; 1072 mib[5] = 0; /* no flags */ 1073 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1074 err(EX_OSERR, "route-sysctl-estimate"); 1075 if ((buf = malloc(needed)) == NULL) 1076 err(EX_OSERR, "malloc"); 1077 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 1078 err(EX_OSERR, "actual retrieval of interface table"); 1079 lim = buf + needed; 1080 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1081 rtm = (struct rt_msghdr *)next; 1082 print_rtmsg(rtm, rtm->rtm_msglen); 1083 } 1084 } 1085 1086 void 1087 monitor() 1088 { 1089 int n; 1090 char msg[2048]; 1091 1092 verbose = 1; 1093 if (debugonly) { 1094 interfaces(); 1095 exit(0); 1096 } 1097 for(;;) { 1098 n = read(s, msg, 2048); 1099 (void) printf("got message of size %d\n", n); 1100 print_rtmsg((struct rt_msghdr *)msg, n); 1101 } 1102 } 1103 1104 struct { 1105 struct rt_msghdr m_rtm; 1106 char m_space[512]; 1107 } m_rtmsg; 1108 1109 int 1110 rtmsg(cmd, flags) 1111 int cmd, flags; 1112 { 1113 static int seq; 1114 int rlen; 1115 register char *cp = m_rtmsg.m_space; 1116 register int l; 1117 1118 #define NEXTADDR(w, u) \ 1119 if (rtm_addrs & (w)) {\ 1120 l = ROUNDUP(u.sa.sa_len); bcopy((char *)&(u), cp, l); cp += l;\ 1121 if (verbose) sodump(&(u),"u");\ 1122 } 1123 1124 errno = 0; 1125 bzero((char *)&m_rtmsg, sizeof(m_rtmsg)); 1126 if (cmd == 'a') 1127 cmd = RTM_ADD; 1128 else if (cmd == 'c') 1129 cmd = RTM_CHANGE; 1130 else if (cmd == 'g') { 1131 cmd = RTM_GET; 1132 if (so_ifp.sa.sa_family == 0) { 1133 so_ifp.sa.sa_family = AF_LINK; 1134 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1135 rtm_addrs |= RTA_IFP; 1136 } 1137 } else 1138 cmd = RTM_DELETE; 1139 #define rtm m_rtmsg.m_rtm 1140 rtm.rtm_type = cmd; 1141 rtm.rtm_flags = flags; 1142 rtm.rtm_version = RTM_VERSION; 1143 rtm.rtm_seq = ++seq; 1144 rtm.rtm_addrs = rtm_addrs; 1145 rtm.rtm_rmx = rt_metrics; 1146 rtm.rtm_inits = rtm_inits; 1147 1148 if (rtm_addrs & RTA_NETMASK) 1149 mask_addr(); 1150 NEXTADDR(RTA_DST, so_dst); 1151 NEXTADDR(RTA_GATEWAY, so_gate); 1152 NEXTADDR(RTA_NETMASK, so_mask); 1153 NEXTADDR(RTA_GENMASK, so_genmask); 1154 NEXTADDR(RTA_IFP, so_ifp); 1155 NEXTADDR(RTA_IFA, so_ifa); 1156 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1157 if (verbose) 1158 print_rtmsg(&rtm, l); 1159 if (debugonly) 1160 return (0); 1161 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { 1162 perror("writing to routing socket"); 1163 return (-1); 1164 } 1165 if (cmd == RTM_GET) { 1166 do { 1167 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1168 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1169 if (l < 0) 1170 warn("read from routing socket"); 1171 else 1172 print_getmsg(&rtm, l); 1173 } 1174 #undef rtm 1175 return (0); 1176 } 1177 1178 void 1179 mask_addr() 1180 { 1181 int olen = so_mask.sa.sa_len; 1182 register char *cp1 = olen + (char *)&so_mask, *cp2; 1183 1184 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1185 if (*--cp1 != 0) { 1186 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1187 break; 1188 } 1189 if ((rtm_addrs & RTA_DST) == 0) 1190 return; 1191 switch (so_dst.sa.sa_family) { 1192 #ifdef NS 1193 case AF_NS: 1194 #endif 1195 case AF_INET: 1196 case AF_APPLETALK: 1197 #ifdef CCITT 1198 case AF_CCITT: 1199 #endif 1200 case 0: 1201 return; 1202 #ifdef ISO 1203 case AF_ISO: 1204 olen = MIN(so_dst.siso.siso_nlen, 1205 MAX(so_mask.sa.sa_len - 6, 0)); 1206 break; 1207 #endif 1208 } 1209 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1210 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1211 while (cp2 > cp1) 1212 *--cp2 = 0; 1213 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1214 while (cp1 > so_dst.sa.sa_data) 1215 *--cp1 &= *--cp2; 1216 #ifdef ISO 1217 switch (so_dst.sa.sa_family) { 1218 case AF_ISO: 1219 so_dst.siso.siso_nlen = olen; 1220 break; 1221 } 1222 #endif 1223 } 1224 1225 char *msgtypes[] = { 1226 "", 1227 "RTM_ADD: Add Route", 1228 "RTM_DELETE: Delete Route", 1229 "RTM_CHANGE: Change Metrics or flags", 1230 "RTM_GET: Report Metrics", 1231 "RTM_LOSING: Kernel Suspects Partitioning", 1232 "RTM_REDIRECT: Told to use different route", 1233 "RTM_MISS: Lookup failed on this address", 1234 "RTM_LOCK: fix specified metrics", 1235 "RTM_OLDADD: caused by SIOCADDRT", 1236 "RTM_OLDDEL: caused by SIOCDELRT", 1237 "RTM_RESOLVE: Route created by cloning", 1238 "RTM_NEWADDR: address being added to iface", 1239 "RTM_DELADDR: address being removed from iface", 1240 "RTM_IFINFO: iface status change", 1241 0, 1242 }; 1243 1244 char metricnames[] = 1245 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount" 1246 "\1mtu"; 1247 char routeflags[] = 1248 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT" 1249 "\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016" 1250 "\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE" 1251 "\025PINNED\026LOCAL\027BROADCAST\030MULTICAST"; 1252 char ifnetflags[] = 1253 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP" 1254 "\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1" 1255 "\017LINK2\020MULTICAST"; 1256 char addrnames[] = 1257 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1258 1259 void 1260 print_rtmsg(rtm, msglen) 1261 register struct rt_msghdr *rtm; 1262 int msglen; 1263 { 1264 struct if_msghdr *ifm; 1265 struct ifa_msghdr *ifam; 1266 1267 if (verbose == 0) 1268 return; 1269 if (rtm->rtm_version != RTM_VERSION) { 1270 (void) printf("routing message version %d not understood\n", 1271 rtm->rtm_version); 1272 return; 1273 } 1274 (void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen); 1275 switch (rtm->rtm_type) { 1276 case RTM_IFINFO: 1277 ifm = (struct if_msghdr *)rtm; 1278 (void) printf("if# %d, flags:", ifm->ifm_index); 1279 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1280 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1281 break; 1282 case RTM_NEWADDR: 1283 case RTM_DELADDR: 1284 ifam = (struct ifa_msghdr *)rtm; 1285 (void) printf("metric %d, flags:", ifam->ifam_metric); 1286 bprintf(stdout, ifam->ifam_flags, routeflags); 1287 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1288 break; 1289 default: 1290 (void) printf("pid: %ld, seq %d, errno %d, flags:", 1291 (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1292 bprintf(stdout, rtm->rtm_flags, routeflags); 1293 pmsg_common(rtm); 1294 } 1295 } 1296 1297 void 1298 print_getmsg(rtm, msglen) 1299 register struct rt_msghdr *rtm; 1300 int msglen; 1301 { 1302 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; 1303 struct sockaddr_dl *ifp = NULL; 1304 register struct sockaddr *sa; 1305 register char *cp; 1306 register int i; 1307 1308 (void) printf(" route to: %s\n", routename(&so_dst)); 1309 if (rtm->rtm_version != RTM_VERSION) { 1310 warnx("routing message version %d not understood", 1311 rtm->rtm_version); 1312 return; 1313 } 1314 if (rtm->rtm_msglen > msglen) { 1315 warnx("message length mismatch, in packet %d, returned %d\n", 1316 rtm->rtm_msglen, msglen); 1317 } 1318 if (rtm->rtm_errno) { 1319 errno = rtm->rtm_errno; 1320 warn("message indicates error %d", errno); 1321 return; 1322 } 1323 cp = ((char *)(rtm + 1)); 1324 if (rtm->rtm_addrs) 1325 for (i = 1; i; i <<= 1) 1326 if (i & rtm->rtm_addrs) { 1327 sa = (struct sockaddr *)cp; 1328 switch (i) { 1329 case RTA_DST: 1330 dst = sa; 1331 break; 1332 case RTA_GATEWAY: 1333 gate = sa; 1334 break; 1335 case RTA_NETMASK: 1336 mask = sa; 1337 break; 1338 case RTA_IFP: 1339 if (sa->sa_family == AF_LINK && 1340 ((struct sockaddr_dl *)sa)->sdl_nlen) 1341 ifp = (struct sockaddr_dl *)sa; 1342 break; 1343 } 1344 ADVANCE(cp, sa); 1345 } 1346 if (dst && mask) 1347 mask->sa_family = dst->sa_family; /* XXX */ 1348 if (dst) 1349 (void)printf("destination: %s\n", routename(dst)); 1350 if (mask) { 1351 int savenflag = nflag; 1352 1353 nflag = 1; 1354 (void)printf(" mask: %s\n", routename(mask)); 1355 nflag = savenflag; 1356 } 1357 if (gate && rtm->rtm_flags & RTF_GATEWAY) 1358 (void)printf(" gateway: %s\n", routename(gate)); 1359 if (ifp) 1360 (void)printf(" interface: %.*s\n", 1361 ifp->sdl_nlen, ifp->sdl_data); 1362 (void)printf(" flags: "); 1363 bprintf(stdout, rtm->rtm_flags, routeflags); 1364 1365 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1366 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1367 1368 (void) printf("\n%s\n", "\ 1369 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1370 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1371 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1372 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1373 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1374 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1375 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1376 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1377 if (rtm->rtm_rmx.rmx_expire) 1378 rtm->rtm_rmx.rmx_expire -= time(0); 1379 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1380 #undef lock 1381 #undef msec 1382 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1383 if (verbose) 1384 pmsg_common(rtm); 1385 else if (rtm->rtm_addrs &~ RTA_IGN) { 1386 (void) printf("sockaddrs: "); 1387 bprintf(stdout, rtm->rtm_addrs, addrnames); 1388 putchar('\n'); 1389 } 1390 #undef RTA_IGN 1391 } 1392 1393 void 1394 pmsg_common(rtm) 1395 register struct rt_msghdr *rtm; 1396 { 1397 (void) printf("\nlocks: "); 1398 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1399 (void) printf(" inits: "); 1400 bprintf(stdout, rtm->rtm_inits, metricnames); 1401 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1402 } 1403 1404 void 1405 pmsg_addrs(cp, addrs) 1406 char *cp; 1407 int addrs; 1408 { 1409 register struct sockaddr *sa; 1410 int i; 1411 1412 if (addrs == 0) 1413 return; 1414 (void) printf("\nsockaddrs: "); 1415 bprintf(stdout, addrs, addrnames); 1416 (void) putchar('\n'); 1417 for (i = 1; i; i <<= 1) 1418 if (i & addrs) { 1419 sa = (struct sockaddr *)cp; 1420 (void) printf(" %s", routename(sa)); 1421 ADVANCE(cp, sa); 1422 } 1423 (void) putchar('\n'); 1424 (void) fflush(stdout); 1425 } 1426 1427 void 1428 bprintf(fp, b, s) 1429 register FILE *fp; 1430 register int b; 1431 register u_char *s; 1432 { 1433 register int i; 1434 int gotsome = 0; 1435 1436 if (b == 0) 1437 return; 1438 while ((i = *s++) != 0) { 1439 if (b & (1 << (i-1))) { 1440 if (gotsome == 0) 1441 i = '<'; 1442 else 1443 i = ','; 1444 (void) putc(i, fp); 1445 gotsome = 1; 1446 for (; (i = *s) > 32; s++) 1447 (void) putc(i, fp); 1448 } else 1449 while (*s > 32) 1450 s++; 1451 } 1452 if (gotsome) 1453 (void) putc('>', fp); 1454 } 1455 1456 int 1457 keyword(cp) 1458 char *cp; 1459 { 1460 register struct keytab *kt = keywords; 1461 1462 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 1463 kt++; 1464 return kt->kt_i; 1465 } 1466 1467 void 1468 sodump(su, which) 1469 register sup su; 1470 char *which; 1471 { 1472 switch (su->sa.sa_family) { 1473 case AF_LINK: 1474 (void) printf("%s: link %s; ", 1475 which, link_ntoa(&su->sdl)); 1476 break; 1477 #ifdef ISO 1478 case AF_ISO: 1479 (void) printf("%s: iso %s; ", 1480 which, iso_ntoa(&su->siso.siso_addr)); 1481 break; 1482 #endif 1483 case AF_INET: 1484 (void) printf("%s: inet %s; ", 1485 which, inet_ntoa(su->sin.sin_addr)); 1486 break; 1487 case AF_APPLETALK: 1488 (void) printf("%s: atalk %s; ", 1489 which, atalk_ntoa(su->sat.sat_addr)); 1490 break; 1491 #ifdef NS 1492 case AF_NS: 1493 (void) printf("%s: xns %s; ", 1494 which, ns_ntoa(su->sns.sns_addr)); 1495 break; 1496 #endif 1497 } 1498 (void) fflush(stdout); 1499 } 1500 1501 /* States*/ 1502 #define VIRGIN 0 1503 #define GOTONE 1 1504 #define GOTTWO 2 1505 /* Inputs */ 1506 #define DIGIT (4*0) 1507 #define END (4*1) 1508 #define DELIM (4*2) 1509 1510 void 1511 sockaddr(addr, sa) 1512 register char *addr; 1513 register struct sockaddr *sa; 1514 { 1515 register char *cp = (char *)sa; 1516 int size = sa->sa_len; 1517 char *cplim = cp + size; 1518 register int byte = 0, state = VIRGIN, new = 0 /* foil gcc */; 1519 1520 bzero(cp, size); 1521 cp++; 1522 do { 1523 if ((*addr >= '0') && (*addr <= '9')) { 1524 new = *addr - '0'; 1525 } else if ((*addr >= 'a') && (*addr <= 'f')) { 1526 new = *addr - 'a' + 10; 1527 } else if ((*addr >= 'A') && (*addr <= 'F')) { 1528 new = *addr - 'A' + 10; 1529 } else if (*addr == 0) 1530 state |= END; 1531 else 1532 state |= DELIM; 1533 addr++; 1534 switch (state /* | INPUT */) { 1535 case GOTTWO | DIGIT: 1536 *cp++ = byte; /*FALLTHROUGH*/ 1537 case VIRGIN | DIGIT: 1538 state = GOTONE; byte = new; continue; 1539 case GOTONE | DIGIT: 1540 state = GOTTWO; byte = new + (byte << 4); continue; 1541 default: /* | DELIM */ 1542 state = VIRGIN; *cp++ = byte; byte = 0; continue; 1543 case GOTONE | END: 1544 case GOTTWO | END: 1545 *cp++ = byte; /* FALLTHROUGH */ 1546 case VIRGIN | END: 1547 break; 1548 } 1549 break; 1550 } while (cp < cplim); 1551 sa->sa_len = cp - (char *)sa; 1552 } 1553 1554 int 1555 atalk_aton(const char *text, struct at_addr *addr) 1556 { 1557 u_int net, node; 1558 1559 if (sscanf(text, "%u.%u", &net, &node) != 2 1560 || net > 0xffff || node > 0xff) 1561 return(0); 1562 addr->s_net = htons(net); 1563 addr->s_node = node; 1564 return(1); 1565 } 1566 1567 char * 1568 atalk_ntoa(struct at_addr at) 1569 { 1570 static char buf[20]; 1571 1572 (void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node); 1573 return(buf); 1574 } 1575