route.c revision 1.22
1 /* $NetBSD: route.c,v 1.22 1997/09/02 00:30:49 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)route.c 8.3 (Berkeley) 3/19/94"; 45 #else 46 static char rcsid[] = "$NetBSD: route.c,v 1.22 1997/09/02 00:30:49 thorpej Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/file.h> 52 #include <sys/socket.h> 53 #include <sys/ioctl.h> 54 #include <sys/mbuf.h> 55 #include <sys/sysctl.h> 56 57 #include <net/if.h> 58 #include <net/route.h> 59 #include <net/if_dl.h> 60 #include <netinet/in.h> 61 #include <netatalk/at.h> 62 #include <netns/ns.h> 63 #include <netiso/iso.h> 64 #include <netccitt/x25.h> 65 #include <arpa/inet.h> 66 #include <netdb.h> 67 68 #include <errno.h> 69 #include <unistd.h> 70 #include <stdio.h> 71 #include <ctype.h> 72 #include <stdlib.h> 73 #include <string.h> 74 #include <paths.h> 75 76 #include "keywords.h" 77 #include "extern.h" 78 79 typedef union sockunion *sup; 80 81 int main __P((int, char **)); 82 static __dead void usage __P((char *)); 83 static void quit __P((char *)); 84 static char *any_ntoa __P((const struct sockaddr *)); 85 static void set_metric __P((char *, int)); 86 static void newroute __P((int, char **)); 87 static void inet_makenetandmask __P((u_long, struct sockaddr_in *)); 88 static int getaddr __P((int, char *, struct hostent **)); 89 #ifndef SMALL 90 static void flushroutes __P((int, char *[])); 91 static int x25_makemask __P((void)); 92 static void interfaces __P((void)); 93 static void monitor __P((void)); 94 static void print_getmsg __P((struct rt_msghdr *, int)); 95 #endif 96 static int rtmsg __P((int, int )); 97 static void mask_addr __P((void)); 98 static void print_rtmsg __P((struct rt_msghdr *, int)); 99 static void pmsg_common __P((struct rt_msghdr *)); 100 static void pmsg_addrs __P((char *, int)); 101 static void bprintf __P((FILE *, int, u_char *)); 102 static int keyword __P((char *)); 103 static void sodump __P((sup, char *)); 104 static void sockaddr __P((char *, struct sockaddr *)); 105 106 struct ortentry route; 107 union sockunion { 108 struct sockaddr sa; 109 struct sockaddr_in sin; 110 struct sockaddr_at sat; 111 struct sockaddr_ns sns; 112 struct sockaddr_iso siso; 113 struct sockaddr_dl sdl; 114 struct sockaddr_x25 sx25; 115 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 116 117 int pid, rtm_addrs; 118 int s; 119 int forcehost, forcenet, doflush, nflag, af, qflag, tflag; 120 int iflag, verbose, aflen = sizeof (struct sockaddr_in); 121 int locking, lockrest, debugonly; 122 struct rt_metrics rt_metrics; 123 u_long rtm_inits; 124 125 static __dead void 126 usage(cp) 127 char *cp; 128 { 129 if (cp) 130 (void) fprintf(stderr, "route: botched keyword: %s\n", cp); 131 (void) fprintf(stderr, 132 "usage: route [ -nqv ] cmd [[ -<qualifers> ] args ]\n"); 133 exit(1); 134 /* NOTREACHED */ 135 } 136 137 static void 138 quit(s) 139 char *s; 140 { 141 int sverrno = errno; 142 143 (void) fprintf(stderr, "route: "); 144 if (s) 145 (void) fprintf(stderr, "%s: ", s); 146 (void) fprintf(stderr, "%s\n", strerror(sverrno)); 147 exit(1); 148 /* NOTREACHED */ 149 } 150 151 #define ROUNDUP(a) \ 152 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 153 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 154 155 int 156 main(argc, argv) 157 int argc; 158 char **argv; 159 { 160 extern int optind; 161 int ch; 162 163 if (argc < 2) 164 usage((char *)NULL); 165 166 while ((ch = getopt(argc, argv, "nqdtv")) != EOF) 167 switch(ch) { 168 case 'n': 169 nflag = 1; 170 break; 171 case 'q': 172 qflag = 1; 173 break; 174 case 'v': 175 verbose = 1; 176 break; 177 case 't': 178 tflag = 1; 179 break; 180 case 'd': 181 debugonly = 1; 182 break; 183 case '?': 184 default: 185 usage((char *)NULL); 186 } 187 argc -= optind; 188 argv += optind; 189 190 pid = getpid(); 191 if (tflag) 192 s = open("/dev/null", O_WRONLY, 0); 193 else 194 s = socket(PF_ROUTE, SOCK_RAW, 0); 195 if (s < 0) 196 quit("socket"); 197 198 if (*argv == NULL) 199 goto no_cmd; 200 switch (keyword(*argv)) { 201 202 #ifndef SMALL 203 case K_GET: 204 #endif /* SMALL */ 205 case K_CHANGE: 206 case K_ADD: 207 case K_DELETE: 208 newroute(argc, argv); 209 break; 210 211 case K_SHOW: 212 show(argc, argv); 213 break; 214 215 #ifndef SMALL 216 case K_MONITOR: 217 monitor(); 218 break; 219 220 case K_FLUSH: 221 flushroutes(argc, argv); 222 break; 223 #endif /* SMALL */ 224 225 no_cmd: 226 default: 227 usage(*argv); 228 return 1; 229 } 230 return 0; 231 } 232 233 #ifndef SMALL 234 /* 235 * Purge all entries in the routing tables not 236 * associated with network interfaces. 237 */ 238 static void 239 flushroutes(argc, argv) 240 int argc; 241 char *argv[]; 242 { 243 size_t needed; 244 int mib[6], rlen, seqno; 245 char *buf, *next, *lim; 246 register struct rt_msghdr *rtm; 247 248 shutdown(s, 0); /* Don't want to read back our messages */ 249 if (argc > 1) { 250 argv++; 251 if (argc == 2 && **argv == '-') 252 switch (keyword(*argv + 1)) { 253 case K_INET: 254 af = AF_INET; 255 break; 256 case K_ATALK: 257 af = AF_APPLETALK; 258 break; 259 case K_XNS: 260 af = AF_NS; 261 break; 262 case K_LINK: 263 af = AF_LINK; 264 break; 265 case K_ISO: 266 case K_OSI: 267 af = AF_ISO; 268 break; 269 case K_X25: 270 af = AF_CCITT; 271 default: 272 goto bad; 273 } else 274 bad: usage(*argv); 275 } 276 mib[0] = CTL_NET; 277 mib[1] = PF_ROUTE; 278 mib[2] = 0; /* protocol */ 279 mib[3] = 0; /* wildcard address family */ 280 mib[4] = NET_RT_DUMP; 281 mib[5] = 0; /* no flags */ 282 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 283 quit("route-sysctl-estimate"); 284 if (needed == 0) 285 return; 286 if ((buf = malloc(needed)) == NULL) 287 quit("malloc"); 288 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 289 quit("actual retrieval of routing table"); 290 lim = buf + needed; 291 if (verbose) { 292 (void) printf("Examining routing table from sysctl\n"); 293 if (af) printf("(address family %s)\n", (*argv + 1)); 294 } 295 seqno = 0; /* ??? */ 296 for (next = buf; next < lim; next += rtm->rtm_msglen) { 297 rtm = (struct rt_msghdr *)next; 298 if (verbose) 299 print_rtmsg(rtm, rtm->rtm_msglen); 300 if ((rtm->rtm_flags & RTF_GATEWAY) == 0) 301 continue; 302 if (af) { 303 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 304 305 if (sa->sa_family != af) 306 continue; 307 } 308 if (debugonly) 309 continue; 310 rtm->rtm_type = RTM_DELETE; 311 rtm->rtm_seq = seqno; 312 rlen = write(s, next, rtm->rtm_msglen); 313 if (rlen < (int)rtm->rtm_msglen) { 314 (void) fprintf(stderr, 315 "route: write to routing socket: %s\n", 316 strerror(errno)); 317 (void) printf("got only %d for rlen\n", rlen); 318 break; 319 } 320 seqno++; 321 if (qflag) 322 continue; 323 if (verbose) 324 print_rtmsg(rtm, rlen); 325 else { 326 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 327 (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ? 328 routename(sa) : netname(sa)); 329 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 330 (void) printf("%-20.20s ", routename(sa)); 331 (void) printf("done\n"); 332 } 333 } 334 } 335 #endif /* SMALL */ 336 337 338 static char hexlist[] = "0123456789abcdef"; 339 340 static char * 341 any_ntoa(sa) 342 const struct sockaddr *sa; 343 { 344 static char obuf[64]; 345 const char *in; 346 char *out; 347 int len; 348 349 len = sa->sa_len; 350 in = sa->sa_data; 351 out = obuf; 352 353 do { 354 *out++ = hexlist[(*in >> 4) & 15]; 355 *out++ = hexlist[(*in++) & 15]; 356 *out++ = '.'; 357 } while (--len > 0); 358 out[-1] = '\0'; 359 return obuf; 360 } 361 362 363 char * 364 routename(sa) 365 struct sockaddr *sa; 366 { 367 register char *cp; 368 static char line[50]; 369 struct hostent *hp; 370 static char domain[MAXHOSTNAMELEN + 1]; 371 static int first = 1; 372 struct in_addr in; 373 374 if (first) { 375 first = 0; 376 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 377 (cp = strchr(domain, '.'))) { 378 (void)strncpy(domain, cp + 1, sizeof(domain) - 1); 379 domain[sizeof(domain) - 1] = '\0'; 380 } else 381 domain[0] = 0; 382 } 383 384 if (sa->sa_len == 0) { 385 strncpy(line, "default", sizeof(line) - 1); 386 line[sizeof(line) - 1] = '\0'; 387 } else switch (sa->sa_family) { 388 389 case AF_INET: 390 in = ((struct sockaddr_in *)sa)->sin_addr; 391 392 cp = 0; 393 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) 394 cp = "default"; 395 if (cp == 0 && !nflag) { 396 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 397 AF_INET); 398 if (hp) { 399 if ((cp = strchr(hp->h_name, '.')) && 400 !strcmp(cp + 1, domain)) 401 *cp = 0; 402 cp = hp->h_name; 403 } 404 } 405 if (cp) 406 (void)strncpy(line, cp, sizeof(line) - 1); 407 else 408 (void)strncpy(line, inet_ntoa(in), sizeof(line) - 1); 409 line[sizeof(line) - 1] = '\0'; 410 break; 411 412 case AF_LINK: 413 return (link_ntoa((struct sockaddr_dl *)sa)); 414 415 #ifndef SMALL 416 case AF_NS: 417 return (ns_print((struct sockaddr_ns *)sa)); 418 419 case AF_ISO: 420 (void)snprintf(line, sizeof line, "iso %s", 421 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 422 break; 423 424 case AF_APPLETALK: 425 (void) snprintf(line, sizeof(line), "atalk %d.%d", 426 ((struct sockaddr_at *)sa)->sat_addr.s_net, 427 ((struct sockaddr_at *)sa)->sat_addr.s_node); 428 break; 429 #endif /* SMALL */ 430 431 default: 432 (void)snprintf(line, sizeof line, "(%d) %s", 433 sa->sa_family, any_ntoa(sa)); 434 break; 435 436 } 437 return (line); 438 } 439 440 /* 441 * Return the name of the network whose address is given. 442 * The address is assumed to be that of a net or subnet, not a host. 443 */ 444 char * 445 netname(sa) 446 struct sockaddr *sa; 447 { 448 char *cp = 0; 449 static char line[50]; 450 struct netent *np = 0; 451 u_long net, mask; 452 register u_long i; 453 int subnetshift; 454 struct in_addr in; 455 456 switch (sa->sa_family) { 457 458 case AF_INET: 459 in = ((struct sockaddr_in *)sa)->sin_addr; 460 i = ntohl(in.s_addr); 461 if (i == 0) 462 cp = "default"; 463 else if (!nflag) { 464 if (IN_CLASSA(i)) { 465 mask = IN_CLASSA_NET; 466 subnetshift = 8; 467 } else if (IN_CLASSB(i)) { 468 mask = IN_CLASSB_NET; 469 subnetshift = 8; 470 } else { 471 mask = IN_CLASSC_NET; 472 subnetshift = 4; 473 } 474 /* 475 * If there are more bits than the standard mask 476 * would suggest, subnets must be in use. 477 * Guess at the subnet mask, assuming reasonable 478 * width subnet fields. 479 */ 480 while (i &~ mask) 481 mask = (long)mask >> subnetshift; 482 net = i & mask; 483 while ((mask & 1) == 0) 484 mask >>= 1, net >>= 1; 485 np = getnetbyaddr(net, AF_INET); 486 if (np) 487 cp = np->n_name; 488 } 489 if (cp) { 490 (void)strncpy(line, cp, sizeof(line) - 1); 491 line[sizeof(line) - 1] = '\0'; 492 } else { 493 #if 0 /* XXX - This is silly... */ 494 #define C(x) ((x) & 0xff) 495 if ((i & 0xffffff) == 0) 496 (void)snprintf(line, sizeof line, "%u", 497 C(i >> 24)); 498 else if ((i & 0xffff) == 0) 499 (void)snprintf(line, sizeof line, "%u.%u", 500 C(i >> 24), C(i >> 16)); 501 else if ((i & 0xff) == 0) 502 (void)snprintf(line, sizeof line, "%u.%u.%u", 503 C(i >> 24), C(i >> 16), C(i >> 8)); 504 else 505 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 506 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 507 #undef C 508 #else /* XXX */ 509 (void)strncpy(line, inet_ntoa(in), sizeof(line) - 1); 510 #endif /* XXX */ 511 } 512 break; 513 514 case AF_LINK: 515 return (link_ntoa((struct sockaddr_dl *)sa)); 516 517 #ifndef SMALL 518 case AF_NS: 519 return (ns_print((struct sockaddr_ns *)sa)); 520 521 case AF_ISO: 522 (void)snprintf(line, sizeof line, "iso %s", 523 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 524 break; 525 526 case AF_APPLETALK: 527 (void) snprintf(line, sizeof(line), "atalk %d.%d", 528 ((struct sockaddr_at *)sa)->sat_addr.s_net, 529 ((struct sockaddr_at *)sa)->sat_addr.s_node); 530 break; 531 #endif /* SMALL */ 532 533 default: 534 (void)snprintf(line, sizeof line, "af %d: %s", 535 sa->sa_family, any_ntoa(sa)); 536 break; 537 } 538 return (line); 539 } 540 541 static void 542 set_metric(value, key) 543 char *value; 544 int key; 545 { 546 int flag = 0; 547 u_long noval, *valp = &noval; 548 549 switch (key) { 550 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 551 caseof(K_MTU, RTV_MTU, rmx_mtu); 552 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 553 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 554 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 555 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 556 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 557 caseof(K_RTT, RTV_RTT, rmx_rtt); 558 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 559 } 560 rtm_inits |= flag; 561 if (lockrest || locking) 562 rt_metrics.rmx_locks |= flag; 563 if (locking) 564 locking = 0; 565 *valp = atoi(value); 566 } 567 568 static void 569 newroute(argc, argv) 570 int argc; 571 register char **argv; 572 { 573 char *cmd, *dest = "", *gateway = "", *err; 574 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 575 int key; 576 struct hostent *hp = 0; 577 578 cmd = argv[0]; 579 if (*cmd != 'g') 580 shutdown(s, 0); /* Don't want to read back our messages */ 581 while (--argc > 0) { 582 if (**(++argv)== '-') { 583 switch (key = keyword(1 + *argv)) { 584 585 case K_SA: 586 af = PF_ROUTE; 587 aflen = sizeof(union sockunion); 588 break; 589 590 case K_ATALK: 591 af = AF_APPLETALK; 592 aflen = sizeof(struct sockaddr_at); 593 break; 594 595 case K_INET: 596 af = AF_INET; 597 aflen = sizeof(struct sockaddr_in); 598 break; 599 600 case K_LINK: 601 af = AF_LINK; 602 aflen = sizeof(struct sockaddr_dl); 603 break; 604 605 case K_OSI: 606 case K_ISO: 607 af = AF_ISO; 608 aflen = sizeof(struct sockaddr_iso); 609 break; 610 611 case K_X25: 612 af = AF_CCITT; 613 aflen = sizeof(struct sockaddr_x25); 614 break; 615 616 case K_XNS: 617 af = AF_NS; 618 aflen = sizeof(struct sockaddr_ns); 619 break; 620 621 case K_IFACE: 622 case K_INTERFACE: 623 iflag++; 624 break; 625 case K_NOSTATIC: 626 flags &= ~RTF_STATIC; 627 break; 628 case K_LLINFO: 629 flags |= RTF_LLINFO; 630 break; 631 case K_LOCK: 632 locking = 1; 633 break; 634 case K_LOCKREST: 635 lockrest = 1; 636 break; 637 case K_HOST: 638 forcehost++; 639 break; 640 case K_REJECT: 641 flags |= RTF_REJECT; 642 break; 643 case K_BLACKHOLE: 644 flags |= RTF_BLACKHOLE; 645 break; 646 case K_PROTO1: 647 flags |= RTF_PROTO1; 648 break; 649 case K_PROTO2: 650 flags |= RTF_PROTO2; 651 break; 652 case K_CLONING: 653 flags |= RTF_CLONING; 654 break; 655 case K_XRESOLVE: 656 flags |= RTF_XRESOLVE; 657 break; 658 case K_STATIC: 659 flags |= RTF_STATIC; 660 break; 661 case K_IFA: 662 if (!--argc) 663 usage(1+*argv); 664 (void) getaddr(RTA_IFA, *++argv, 0); 665 break; 666 case K_IFP: 667 if (!--argc) 668 usage(1+*argv); 669 (void) getaddr(RTA_IFP, *++argv, 0); 670 break; 671 case K_GENMASK: 672 if (!--argc) 673 usage(1+*argv); 674 (void) getaddr(RTA_GENMASK, *++argv, 0); 675 break; 676 case K_GATEWAY: 677 if (!--argc) 678 usage(1+*argv); 679 (void) getaddr(RTA_GATEWAY, *++argv, 0); 680 break; 681 case K_DST: 682 if (!--argc) 683 usage(1+*argv); 684 ishost = getaddr(RTA_DST, *++argv, &hp); 685 dest = *argv; 686 break; 687 case K_NETMASK: 688 if (!--argc) 689 usage(1+*argv); 690 (void) getaddr(RTA_NETMASK, *++argv, 0); 691 /* FALLTHROUGH */ 692 case K_NET: 693 forcenet++; 694 break; 695 case K_MTU: 696 case K_HOPCOUNT: 697 case K_EXPIRE: 698 case K_RECVPIPE: 699 case K_SENDPIPE: 700 case K_SSTHRESH: 701 case K_RTT: 702 case K_RTTVAR: 703 if (!--argc) 704 usage(1+*argv); 705 set_metric(*++argv, key); 706 break; 707 default: 708 usage(1+*argv); 709 } 710 } else { 711 if ((rtm_addrs & RTA_DST) == 0) { 712 dest = *argv; 713 ishost = getaddr(RTA_DST, *argv, &hp); 714 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 715 gateway = *argv; 716 (void) getaddr(RTA_GATEWAY, *argv, &hp); 717 } else { 718 int ret = atoi(*argv); 719 720 if (ret == 0) { 721 if (!qflag && strcmp(*argv, "0") == 0) 722 printf("%s,%s", 723 "old usage of trailing 0", 724 "assuming route to if\n"); 725 else 726 usage((char *)NULL); 727 iflag = 1; 728 continue; 729 } else if (ret > 0 && ret < 10) { 730 if (!qflag) { 731 printf("old usage of trailing digit, "); 732 printf("assuming route via gateway\n"); 733 } 734 iflag = 0; 735 continue; 736 } 737 (void) getaddr(RTA_NETMASK, *argv, 0); 738 } 739 } 740 } 741 if (forcehost) 742 ishost = 1; 743 if (forcenet) 744 ishost = 0; 745 flags |= RTF_UP; 746 if (ishost) 747 flags |= RTF_HOST; 748 if (iflag == 0) 749 flags |= RTF_GATEWAY; 750 for (attempts = 1; ; attempts++) { 751 errno = 0; 752 if ((ret = rtmsg(*cmd, flags)) == 0) 753 break; 754 if (errno != ENETUNREACH && errno != ESRCH) 755 break; 756 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 757 hp->h_addr_list++; 758 memcpy(&so_gate.sin.sin_addr, hp->h_addr_list[0], 759 hp->h_length); 760 } else 761 break; 762 } 763 if (*cmd == 'g') 764 exit(0); 765 oerrno = errno; 766 if (!qflag) { 767 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); 768 if (*gateway) { 769 (void) printf(": gateway %s", gateway); 770 if (attempts > 1 && ret == 0 && af == AF_INET) 771 (void) printf(" (%s)", 772 inet_ntoa(((struct sockaddr_in *) 773 &route.rt_gateway)->sin_addr)); 774 } 775 if (ret == 0) 776 (void) printf("\n"); 777 } 778 if (ret != 0) { 779 switch (oerrno) { 780 case ESRCH: 781 err = "not in table"; 782 break; 783 case EBUSY: 784 err = "entry in use"; 785 break; 786 case ENOBUFS: 787 err = "routing table overflow"; 788 break; 789 default: 790 err = strerror(oerrno); 791 break; 792 } 793 (void) printf(": %s\n", err); 794 } 795 } 796 797 static void 798 inet_makenetandmask(net, sin) 799 u_long net; 800 register struct sockaddr_in *sin; 801 { 802 u_long addr, mask = 0; 803 register char *cp; 804 805 rtm_addrs |= RTA_NETMASK; 806 if (net == 0) 807 mask = addr = 0; 808 else if (net < 128) { 809 addr = net << IN_CLASSA_NSHIFT; 810 mask = IN_CLASSA_NET; 811 } else if (net < 65536) { 812 addr = net << IN_CLASSB_NSHIFT; 813 mask = IN_CLASSB_NET; 814 } else if (net < 16777216L) { 815 addr = net << IN_CLASSC_NSHIFT; 816 mask = IN_CLASSC_NET; 817 } else { 818 addr = net; 819 if ((addr & IN_CLASSA_HOST) == 0) 820 mask = IN_CLASSA_NET; 821 else if ((addr & IN_CLASSB_HOST) == 0) 822 mask = IN_CLASSB_NET; 823 else if ((addr & IN_CLASSC_HOST) == 0) 824 mask = IN_CLASSC_NET; 825 else 826 mask = -1; 827 } 828 sin->sin_addr.s_addr = htonl(addr); 829 sin = &so_mask.sin; 830 sin->sin_addr.s_addr = htonl(mask); 831 sin->sin_len = 0; 832 sin->sin_family = 0; 833 cp = (char *)(&sin->sin_addr + 1); 834 while (*--cp == 0 && cp > (char *)sin) 835 ; 836 sin->sin_len = 1 + cp - (char *)sin; 837 } 838 839 /* 840 * Interpret an argument as a network address of some kind, 841 * returning 1 if a host address, 0 if a network address. 842 */ 843 static int 844 getaddr(which, s, hpp) 845 int which; 846 char *s; 847 struct hostent **hpp; 848 { 849 register sup su; 850 struct hostent *hp; 851 struct netent *np; 852 u_long val; 853 char *t; 854 855 if (af == 0) { 856 af = AF_INET; 857 aflen = sizeof(struct sockaddr_in); 858 } 859 rtm_addrs |= which; 860 switch (which) { 861 case RTA_DST: 862 su = &so_dst; 863 su->sa.sa_family = af; 864 break; 865 case RTA_GATEWAY: 866 su = &so_gate; 867 su->sa.sa_family = af; 868 break; 869 case RTA_NETMASK: 870 su = &so_mask; 871 break; 872 case RTA_GENMASK: 873 su = &so_genmask; 874 break; 875 case RTA_IFP: 876 su = &so_ifp; 877 su->sa.sa_family = af; 878 break; 879 case RTA_IFA: 880 su = &so_ifa; 881 su->sa.sa_family = af; 882 break; 883 default: 884 su = NULL; 885 usage("Internal Error"); 886 /*NOTREACHED*/ 887 } 888 su->sa.sa_len = aflen; 889 if (strcmp(s, "default") == 0) { 890 switch (which) { 891 case RTA_DST: 892 forcenet++; 893 (void) getaddr(RTA_NETMASK, s, 0); 894 break; 895 case RTA_NETMASK: 896 case RTA_GENMASK: 897 su->sa.sa_len = 0; 898 } 899 return (0); 900 } 901 switch (af) { 902 #ifndef SMALL 903 case AF_NS: 904 if (which == RTA_DST) { 905 extern short ns_bh[3]; 906 struct sockaddr_ns *sms = &(so_mask.sns); 907 memset(sms, 0, sizeof(*sms)); 908 sms->sns_family = 0; 909 sms->sns_len = 6; 910 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 911 rtm_addrs |= RTA_NETMASK; 912 } 913 su->sns.sns_addr = ns_addr(s); 914 return (!ns_nullhost(su->sns.sns_addr)); 915 916 case AF_OSI: 917 su->siso.siso_addr = *iso_addr(s); 918 if (which == RTA_NETMASK || which == RTA_GENMASK) { 919 register char *cp = (char *)TSEL(&su->siso); 920 su->siso.siso_nlen = 0; 921 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 922 su->siso.siso_len = 1 + cp - (char *)su; 923 } 924 return (1); 925 926 case AF_CCITT: 927 ccitt_addr(s, &su->sx25); 928 return (which == RTA_DST ? x25_makemask() : 1); 929 #endif /* SMALL */ 930 931 case PF_ROUTE: 932 su->sa.sa_len = sizeof(*su); 933 sockaddr(s, &su->sa); 934 return (1); 935 936 case AF_APPLETALK: 937 t = strchr (s, '.'); 938 if (!t) { 939 badataddr: 940 (void)fprintf (stderr, "bad address: %s\n", s); 941 exit (1); 942 } 943 val = atoi (s); 944 if (val > 65535) 945 goto badataddr; 946 su->sat.sat_addr.s_net = val; 947 val = atoi (t); 948 if (val > 256) 949 goto badataddr; 950 su->sat.sat_addr.s_node = val; 951 rtm_addrs |= RTA_NETMASK; 952 return(forcehost || su->sat.sat_addr.s_node != 0); 953 954 case AF_LINK: 955 link_addr(s, &su->sdl); 956 return (1); 957 958 case AF_INET: 959 default: 960 break; 961 } 962 963 if (hpp == NULL) 964 hpp = &hp; 965 *hpp = NULL; 966 if (((val = inet_addr(s)) != INADDR_NONE) && 967 (which != RTA_DST || forcenet == 0)) { 968 su->sin.sin_addr.s_addr = val; 969 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 970 return (1); 971 else { 972 val = ntohl(val); 973 goto netdone; 974 } 975 } 976 if ((val = inet_network(s)) != INADDR_NONE || 977 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 978 netdone: 979 if (which == RTA_DST) 980 inet_makenetandmask(val, &su->sin); 981 return (0); 982 } 983 hp = gethostbyname(s); 984 if (hp) { 985 *hpp = hp; 986 su->sin.sin_family = hp->h_addrtype; 987 memcpy(&su->sin.sin_addr, hp->h_addr, hp->h_length); 988 return (1); 989 } 990 (void) fprintf(stderr, "%s: bad value\n", s); 991 exit(1); 992 } 993 994 #ifndef SMALL 995 int 996 x25_makemask() 997 { 998 register char *cp; 999 1000 if ((rtm_addrs & RTA_NETMASK) == 0) { 1001 rtm_addrs |= RTA_NETMASK; 1002 for (cp = (char *)&so_mask.sx25.x25_net; 1003 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 1004 *cp = -1; 1005 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 1006 } 1007 return 0; 1008 } 1009 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)snprintf(mybuf, sizeof mybuf, "*.%XH", port); 1033 return (mybuf); 1034 } 1035 1036 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0) 1037 host = "any"; 1038 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0) 1039 host = "*"; 1040 else { 1041 q = work.x_host.c_host; 1042 (void)snprintf(chost, sizeof 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)snprintf(cport, sizeof cport, ".%XH", htons(port)); 1050 else 1051 *cport = 0; 1052 1053 (void)snprintf(mybuf, sizeof mybuf, "%XH.%s%s", 1054 (u_int32_t)ntohl(net.long_e), host, cport); 1055 return (mybuf); 1056 } 1057 1058 static void 1059 interfaces() 1060 { 1061 size_t needed; 1062 int mib[6]; 1063 char *buf, *lim, *next; 1064 register struct rt_msghdr *rtm; 1065 1066 mib[0] = CTL_NET; 1067 mib[1] = PF_ROUTE; 1068 mib[2] = 0; /* protocol */ 1069 mib[3] = 0; /* wildcard address family */ 1070 mib[4] = NET_RT_IFLIST; 1071 mib[5] = 0; /* no flags */ 1072 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1073 quit("route-sysctl-estimate"); 1074 if ((buf = malloc(needed)) == NULL) 1075 quit("malloc"); 1076 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 1077 quit("actual retrieval of interface table"); 1078 lim = buf + needed; 1079 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1080 rtm = (struct rt_msghdr *)next; 1081 print_rtmsg(rtm, rtm->rtm_msglen); 1082 } 1083 } 1084 1085 static void 1086 monitor() 1087 { 1088 int n; 1089 char msg[2048]; 1090 1091 verbose = 1; 1092 if (debugonly) { 1093 interfaces(); 1094 exit(0); 1095 } 1096 for(;;) { 1097 n = read(s, msg, 2048); 1098 (void) printf("got message of size %d\n", n); 1099 print_rtmsg((struct rt_msghdr *)msg, n); 1100 } 1101 } 1102 1103 #endif /* SMALL */ 1104 1105 1106 struct { 1107 struct rt_msghdr m_rtm; 1108 char m_space[512]; 1109 } m_rtmsg; 1110 1111 static int 1112 rtmsg(cmd, flags) 1113 int cmd, flags; 1114 { 1115 static int seq; 1116 int rlen; 1117 register char *cp = m_rtmsg.m_space; 1118 register int l; 1119 1120 #define NEXTADDR(w, u) \ 1121 if (rtm_addrs & (w)) {\ 1122 l = ROUNDUP(u.sa.sa_len); memcpy(cp, &(u), l); cp += l;\ 1123 if (verbose) sodump(&(u),"u");\ 1124 } 1125 1126 errno = 0; 1127 memset(&m_rtmsg, 0, sizeof(m_rtmsg)); 1128 if (cmd == 'a') 1129 cmd = RTM_ADD; 1130 else if (cmd == 'c') 1131 cmd = RTM_CHANGE; 1132 else if (cmd == 'g') { 1133 #ifdef SMALL 1134 return (-1); 1135 #else /* SMALL */ 1136 cmd = RTM_GET; 1137 if (so_ifp.sa.sa_family == 0) { 1138 so_ifp.sa.sa_family = AF_LINK; 1139 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1140 rtm_addrs |= RTA_IFP; 1141 } 1142 #endif /* SMALL */ 1143 } else 1144 cmd = RTM_DELETE; 1145 #define rtm m_rtmsg.m_rtm 1146 rtm.rtm_type = cmd; 1147 rtm.rtm_flags = flags; 1148 rtm.rtm_version = RTM_VERSION; 1149 rtm.rtm_seq = ++seq; 1150 rtm.rtm_addrs = rtm_addrs; 1151 rtm.rtm_rmx = rt_metrics; 1152 rtm.rtm_inits = rtm_inits; 1153 1154 if (rtm_addrs & RTA_NETMASK) 1155 mask_addr(); 1156 NEXTADDR(RTA_DST, so_dst); 1157 NEXTADDR(RTA_GATEWAY, so_gate); 1158 NEXTADDR(RTA_NETMASK, so_mask); 1159 NEXTADDR(RTA_GENMASK, so_genmask); 1160 NEXTADDR(RTA_IFP, so_ifp); 1161 NEXTADDR(RTA_IFA, so_ifa); 1162 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1163 if (verbose) 1164 print_rtmsg(&rtm, l); 1165 if (debugonly) 1166 return (0); 1167 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { 1168 perror("writing to routing socket"); 1169 return (-1); 1170 } 1171 #ifndef SMALL 1172 if (cmd == RTM_GET) { 1173 do { 1174 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1175 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1176 if (l < 0) 1177 (void) fprintf(stderr, 1178 "route: read from routing socket: %s\n", 1179 strerror(errno)); 1180 else 1181 print_getmsg(&rtm, l); 1182 } 1183 #endif /* SMALL */ 1184 #undef rtm 1185 return (0); 1186 } 1187 1188 static void 1189 mask_addr() 1190 { 1191 int olen = so_mask.sa.sa_len; 1192 register char *cp1 = olen + (char *)&so_mask, *cp2; 1193 1194 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1195 if (*--cp1 != 0) { 1196 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1197 break; 1198 } 1199 if ((rtm_addrs & RTA_DST) == 0) 1200 return; 1201 switch (so_dst.sa.sa_family) { 1202 case AF_NS: 1203 case AF_INET: 1204 case AF_CCITT: 1205 case AF_APPLETALK: 1206 case 0: 1207 return; 1208 case AF_ISO: 1209 olen = MIN(so_dst.siso.siso_nlen, 1210 MAX(so_mask.sa.sa_len - 6, 0)); 1211 break; 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 switch (so_dst.sa.sa_family) { 1221 case AF_ISO: 1222 so_dst.siso.siso_nlen = olen; 1223 break; 1224 } 1225 } 1226 1227 char *msgtypes[] = { 1228 "", 1229 "RTM_ADD: Add Route", 1230 "RTM_DELETE: Delete Route", 1231 "RTM_CHANGE: Change Metrics or flags", 1232 "RTM_GET: Report Metrics", 1233 "RTM_LOSING: Kernel Suspects Partitioning", 1234 "RTM_REDIRECT: Told to use different route", 1235 "RTM_MISS: Lookup failed on this address", 1236 "RTM_LOCK: fix specified metrics", 1237 "RTM_OLDADD: caused by SIOCADDRT", 1238 "RTM_OLDDEL: caused by SIOCDELRT", 1239 "RTM_RESOLVE: Route created by cloning", 1240 "RTM_NEWADDR: address being added to iface", 1241 "RTM_DELADDR: address being removed from iface", 1242 "RTM_IFINFO: iface status change", 1243 0, 1244 }; 1245 1246 char metricnames[] = 1247 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount\1mtu"; 1248 char routeflags[] = 1249 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT\011CLONING\012XRESOLVE\013LLINFO\014STATIC\017PROTO2\020PROTO1"; 1250 char ifnetflags[] = 1251 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6NOTRAILERS\7RUNNING\010NOARP\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1\017LINK2\020MULTICAST"; 1252 char addrnames[] = 1253 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1254 1255 static void 1256 print_rtmsg(rtm, msglen) 1257 register struct rt_msghdr *rtm; 1258 int msglen; 1259 { 1260 struct if_msghdr *ifm; 1261 struct ifa_msghdr *ifam; 1262 1263 if (verbose == 0) 1264 return; 1265 if (rtm->rtm_version != RTM_VERSION) { 1266 (void) printf("routing message version %d not understood\n", 1267 rtm->rtm_version); 1268 return; 1269 } 1270 (void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen); 1271 switch (rtm->rtm_type) { 1272 case RTM_IFINFO: 1273 ifm = (struct if_msghdr *)rtm; 1274 (void) printf("if# %d, flags:", ifm->ifm_index); 1275 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1276 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1277 break; 1278 case RTM_NEWADDR: 1279 case RTM_DELADDR: 1280 ifam = (struct ifa_msghdr *)rtm; 1281 (void) printf("metric %d, flags:", ifam->ifam_metric); 1282 bprintf(stdout, ifam->ifam_flags, routeflags); 1283 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1284 break; 1285 default: 1286 (void) printf("pid: %d, seq %d, errno %d, flags:", 1287 rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1288 bprintf(stdout, rtm->rtm_flags, routeflags); 1289 pmsg_common(rtm); 1290 } 1291 } 1292 1293 #ifndef SMALL 1294 static void 1295 print_getmsg(rtm, msglen) 1296 register struct rt_msghdr *rtm; 1297 int msglen; 1298 { 1299 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; 1300 struct sockaddr_dl *ifp = NULL; 1301 register struct sockaddr *sa; 1302 register char *cp; 1303 register int i; 1304 1305 (void) printf(" route to: %s\n", 1306 routename((struct sockaddr *) &so_dst)); 1307 if (rtm->rtm_version != RTM_VERSION) { 1308 (void)fprintf(stderr, 1309 "routing message version %d not understood\n", 1310 rtm->rtm_version); 1311 return; 1312 } 1313 if (rtm->rtm_msglen > msglen) { 1314 (void)fprintf(stderr, 1315 "message length mismatch, in packet %d, returned %d\n", 1316 rtm->rtm_msglen, msglen); 1317 } 1318 if (rtm->rtm_errno) { 1319 (void) fprintf(stderr, "RTM_GET: %s (errno %d)\n", 1320 strerror(rtm->rtm_errno), rtm->rtm_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 #endif /* SMALL */ 1393 1394 void 1395 pmsg_common(rtm) 1396 register struct rt_msghdr *rtm; 1397 { 1398 (void) printf("\nlocks: "); 1399 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1400 (void) printf(" inits: "); 1401 bprintf(stdout, rtm->rtm_inits, metricnames); 1402 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1403 } 1404 1405 static void 1406 pmsg_addrs(cp, addrs) 1407 char *cp; 1408 int addrs; 1409 { 1410 register struct sockaddr *sa; 1411 int i; 1412 1413 if (addrs == 0) 1414 return; 1415 (void) printf("\nsockaddrs: "); 1416 bprintf(stdout, addrs, addrnames); 1417 (void) putchar('\n'); 1418 for (i = 1; i; i <<= 1) 1419 if (i & addrs) { 1420 sa = (struct sockaddr *)cp; 1421 (void) printf(" %s", routename(sa)); 1422 ADVANCE(cp, sa); 1423 } 1424 (void) putchar('\n'); 1425 (void) fflush(stdout); 1426 } 1427 1428 static void 1429 bprintf(fp, b, s) 1430 register FILE *fp; 1431 register int b; 1432 register u_char *s; 1433 { 1434 register int i; 1435 int gotsome = 0; 1436 1437 if (b == 0) 1438 return; 1439 while ((i = *s++) != 0) { 1440 if (b & (1 << (i-1))) { 1441 if (gotsome == 0) 1442 i = '<'; 1443 else 1444 i = ','; 1445 (void) putc(i, fp); 1446 gotsome = 1; 1447 for (; (i = *s) > 32; s++) 1448 (void) putc(i, fp); 1449 } else 1450 while (*s > 32) 1451 s++; 1452 } 1453 if (gotsome) 1454 (void) putc('>', fp); 1455 } 1456 1457 static int 1458 keyword(cp) 1459 char *cp; 1460 { 1461 register struct keytab *kt = keywords; 1462 1463 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 1464 kt++; 1465 return kt->kt_i; 1466 } 1467 1468 static void 1469 sodump(su, which) 1470 register sup su; 1471 char *which; 1472 { 1473 switch (su->sa.sa_family) { 1474 case AF_INET: 1475 (void) printf("%s: inet %s; ", 1476 which, inet_ntoa(su->sin.sin_addr)); 1477 break; 1478 case AF_APPLETALK: 1479 (void) printf("%s: atalk %d.%d; ", 1480 which, su->sat.sat_addr.s_net, su->sat.sat_addr.s_node); 1481 break; 1482 case AF_LINK: 1483 (void) printf("%s: link %s; ", 1484 which, link_ntoa(&su->sdl)); 1485 break; 1486 #ifndef SMALL 1487 case AF_ISO: 1488 (void) printf("%s: iso %s; ", 1489 which, iso_ntoa(&su->siso.siso_addr)); 1490 break; 1491 case AF_NS: 1492 (void) printf("%s: xns %s; ", 1493 which, ns_ntoa(su->sns.sns_addr)); 1494 break; 1495 #endif /* SMALL */ 1496 default: 1497 (void) printf("af %p: %s; ", 1498 which, any_ntoa(&su->sa)); 1499 } 1500 (void) fflush(stdout); 1501 } 1502 1503 /* States*/ 1504 #define VIRGIN 0 1505 #define GOTONE 1 1506 #define GOTTWO 2 1507 /* Inputs */ 1508 #define DIGIT (4*0) 1509 #define END (4*1) 1510 #define DELIM (4*2) 1511 1512 static void 1513 sockaddr(addr, sa) 1514 register char *addr; 1515 register struct sockaddr *sa; 1516 { 1517 register char *cp = (char *)sa; 1518 int size = sa->sa_len; 1519 char *cplim = cp + size; 1520 register int byte = 0, state = VIRGIN, new = 0; 1521 1522 (void) memset(cp, 0, size); 1523 cp++; 1524 do { 1525 if ((*addr >= '0') && (*addr <= '9')) { 1526 new = *addr - '0'; 1527 } else if ((*addr >= 'a') && (*addr <= 'f')) { 1528 new = *addr - 'a' + 10; 1529 } else if ((*addr >= 'A') && (*addr <= 'F')) { 1530 new = *addr - 'A' + 10; 1531 } else if (*addr == 0) 1532 state |= END; 1533 else 1534 state |= DELIM; 1535 addr++; 1536 switch (state /* | INPUT */) { 1537 case GOTTWO | DIGIT: 1538 *cp++ = byte; /*FALLTHROUGH*/ 1539 case VIRGIN | DIGIT: 1540 state = GOTONE; byte = new; continue; 1541 case GOTONE | DIGIT: 1542 state = GOTTWO; byte = new + (byte << 4); continue; 1543 default: /* | DELIM */ 1544 state = VIRGIN; *cp++ = byte; byte = 0; continue; 1545 case GOTONE | END: 1546 case GOTTWO | END: 1547 *cp++ = byte; /* FALLTHROUGH */ 1548 case VIRGIN | END: 1549 break; 1550 } 1551 break; 1552 } while (cp < cplim); 1553 sa->sa_len = cp - (char *)sa; 1554 } 1555
Indexes created Fri Sep 26 08:10:20 GMT 2025