route.c revision 1.97
1 /* $NetBSD: route.c,v 1.97 2006/01/29 22:11:10 wiz 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)route.c 8.6 (Berkeley) 4/28/95"; 41 #else 42 __RCSID("$NetBSD: route.c,v 1.97 2006/01/29 22:11:10 wiz Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/file.h> 48 #include <sys/socket.h> 49 #include <sys/ioctl.h> 50 #include <sys/mbuf.h> 51 #include <sys/sysctl.h> 52 53 #include <net/if.h> 54 #include <net/route.h> 55 #include <net/if_dl.h> 56 #include <net80211/ieee80211_netbsd.h> 57 #include <netinet/in.h> 58 #include <netatalk/at.h> 59 #include <netns/ns.h> 60 #include <netiso/iso.h> 61 #include <netccitt/x25.h> 62 #include <arpa/inet.h> 63 #include <netdb.h> 64 65 #include <errno.h> 66 #include <unistd.h> 67 #include <stdio.h> 68 #include <ctype.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <time.h> 72 #include <paths.h> 73 #include <err.h> 74 75 #include "keywords.h" 76 #include "extern.h" 77 78 typedef union sockunion *sup; 79 80 static char *any_ntoa(const struct sockaddr *); 81 static const char *route_strerror(int); 82 static void set_metric(char *, int); 83 static int newroute(int, char **); 84 static void inet_makenetandmask(u_int32_t, struct sockaddr_in *); 85 #ifdef INET6 86 static int inet6_makenetandmask(struct sockaddr_in6 *); 87 #endif 88 static int getaddr(int, char *, struct hostent **); 89 static int flushroutes(int, char *[], int); 90 static int prefixlen(const char *); 91 #ifndef SMALL 92 static int x25_makemask(void); 93 static void interfaces(void); 94 static void monitor(void); 95 static int print_getmsg(struct rt_msghdr *, int); 96 static const char *linkstate(struct if_msghdr *); 97 #endif /* SMALL */ 98 static int rtmsg(int, int ); 99 static void mask_addr(void); 100 static void print_rtmsg(struct rt_msghdr *, int); 101 static void pmsg_common(struct rt_msghdr *); 102 static void pmsg_addrs(char *, int); 103 static void bprintf(FILE *, int, const char *); 104 static void sodump(sup, const char *); 105 static void sockaddr(char *, struct sockaddr *); 106 107 union sockunion { 108 struct sockaddr sa; 109 struct sockaddr_in sin; 110 #ifdef INET6 111 struct sockaddr_in6 sin6; 112 #endif 113 struct sockaddr_at sat; 114 struct sockaddr_dl sdl; 115 #ifndef SMALL 116 struct sockaddr_ns sns; 117 struct sockaddr_iso siso; 118 struct sockaddr_x25 sx25; 119 #endif /* SMALL */ 120 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 121 122 int pid, rtm_addrs; 123 int sock; 124 int forcehost, forcenet, doflush, nflag, af, qflag, tflag, Sflag; 125 int iflag, verbose, aflen = sizeof(struct sockaddr_in); 126 int locking, lockrest, debugonly, shortoutput; 127 struct rt_metrics rt_metrics; 128 u_int32_t rtm_inits; 129 short ns_nullh[] = {0,0,0}; 130 short ns_bh[] = {-1,-1,-1}; 131 132 133 void 134 usage(const char *cp) 135 { 136 137 if (cp) 138 warnx("botched keyword: %s", cp); 139 (void)fprintf(stderr, 140 "Usage: %s [ -fnqSsv ] cmd [[ -<qualifers> ] args ]\n", 141 getprogname()); 142 exit(1); 143 /* NOTREACHED */ 144 } 145 146 #define PRIETHER "02x:%02x:%02x:%02x:%02x:%02x" 147 #define PRIETHER_ARGS(__enaddr) (__enaddr)[0], (__enaddr)[1], (__enaddr)[2], \ 148 (__enaddr)[3], (__enaddr)[4], (__enaddr)[5] 149 #define ROUNDUP(a) \ 150 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 151 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 152 153 int 154 main(int argc, char **argv) 155 { 156 int ch; 157 158 if (argc < 2) 159 usage(NULL); 160 161 while ((ch = getopt(argc, argv, "dfnqSstv")) != -1) 162 switch (ch) { 163 case 'd': 164 debugonly = 1; 165 break; 166 case 'f': 167 doflush = 1; 168 break; 169 case 'n': 170 nflag = 1; 171 break; 172 case 'q': 173 qflag = 1; 174 break; 175 case 'S': 176 Sflag = 1; 177 break; 178 case 's': 179 shortoutput = 1; 180 break; 181 case 't': 182 tflag = 1; 183 break; 184 case 'v': 185 verbose = 1; 186 break; 187 case '?': 188 default: 189 usage(NULL); 190 /*NOTREACHED*/ 191 } 192 argc -= optind; 193 argv += optind; 194 195 pid = getpid(); 196 if (tflag) 197 sock = open("/dev/null", O_WRONLY, 0); 198 else 199 sock = socket(PF_ROUTE, SOCK_RAW, 0); 200 if (sock < 0) 201 err(1, "socket"); 202 203 if (*argv == NULL) { 204 if (doflush) 205 ch = K_FLUSH; 206 else 207 goto no_cmd; 208 } else 209 ch = keyword(*argv); 210 211 switch (ch) { 212 #ifndef SMALL 213 case K_GET: 214 #endif /* SMALL */ 215 case K_CHANGE: 216 case K_ADD: 217 case K_DELETE: 218 if (doflush) 219 (void)flushroutes(1, argv, 0); 220 return newroute(argc, argv); 221 222 case K_SHOW: 223 show(argc, argv); 224 return 0; 225 226 #ifndef SMALL 227 case K_MONITOR: 228 monitor(); 229 return 0; 230 231 #endif /* SMALL */ 232 case K_FLUSH: 233 return flushroutes(argc, argv, 0); 234 235 case K_FLUSHALL: 236 return flushroutes(argc, argv, 1); 237 no_cmd: 238 default: 239 usage(*argv); 240 /*NOTREACHED*/ 241 } 242 } 243 244 /* 245 * Purge all entries in the routing tables not 246 * associated with network interfaces. 247 */ 248 static int 249 flushroutes(int argc, char *argv[], int doall) 250 { 251 size_t needed; 252 int mib[6], rlen, seqno; 253 char *buf, *next, *lim; 254 struct rt_msghdr *rtm; 255 256 af = 0; 257 shutdown(sock, SHUT_RD); /* Don't want to read back our messages */ 258 if (argc > 1) { 259 argv++; 260 if (argc == 2 && **argv == '-') 261 switch (keyword(*argv + 1)) { 262 case K_INET: 263 af = AF_INET; 264 break; 265 #ifdef INET6 266 case K_INET6: 267 af = AF_INET6; 268 break; 269 #endif 270 #ifndef SMALL 271 case K_ATALK: 272 af = AF_APPLETALK; 273 break; 274 case K_XNS: 275 af = AF_NS; 276 break; 277 #endif /* SMALL */ 278 case K_LINK: 279 af = AF_LINK; 280 break; 281 #ifndef SMALL 282 case K_ISO: 283 case K_OSI: 284 af = AF_ISO; 285 break; 286 case K_X25: 287 af = AF_CCITT; 288 #endif /* SMALL */ 289 default: 290 goto bad; 291 } else 292 bad: usage(*argv); 293 } 294 mib[0] = CTL_NET; 295 mib[1] = PF_ROUTE; 296 mib[2] = 0; /* protocol */ 297 mib[3] = 0; /* wildcard address family */ 298 mib[4] = NET_RT_DUMP; 299 mib[5] = 0; /* no flags */ 300 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 301 err(1, "route-sysctl-estimate"); 302 buf = lim = NULL; 303 if (needed) { 304 if ((buf = malloc(needed)) == NULL) 305 err(1, "malloc"); 306 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 307 err(1, "actual retrieval of routing table"); 308 lim = buf + needed; 309 } 310 if (verbose) { 311 (void)printf("Examining routing table from sysctl\n"); 312 if (af) 313 printf("(address family %s)\n", (*argv + 1)); 314 } 315 if (needed == 0) 316 return 0; 317 seqno = 0; /* ??? */ 318 for (next = buf; next < lim; next += rtm->rtm_msglen) { 319 rtm = (struct rt_msghdr *)next; 320 if (verbose) 321 print_rtmsg(rtm, rtm->rtm_msglen); 322 if (!(rtm->rtm_flags & (RTF_GATEWAY | RTF_STATIC | 323 RTF_LLINFO)) && !doall) 324 continue; 325 if (af) { 326 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 327 328 if (sa->sa_family != af) 329 continue; 330 } 331 if (debugonly) 332 continue; 333 rtm->rtm_type = RTM_DELETE; 334 rtm->rtm_seq = seqno; 335 if ((rlen = write(sock, next, rtm->rtm_msglen)) < 0) { 336 warnx("writing to routing socket: %s", 337 route_strerror(errno)); 338 return 1; 339 } 340 if (rlen < (int)rtm->rtm_msglen) { 341 warnx("write to routing socket, got %d for rlen", rlen); 342 return 1; 343 } 344 seqno++; 345 if (qflag) 346 continue; 347 if (verbose) 348 print_rtmsg(rtm, rlen); 349 else { 350 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 351 (void)printf("%-20.20s ", 352 routename(sa, NULL, rtm->rtm_flags)); 353 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 354 (void)printf("%-20.20s ", 355 routename(sa, NULL, RTF_HOST)); 356 (void)printf("done\n"); 357 } 358 } 359 free(buf); 360 return 0; 361 } 362 363 364 static char hexlist[] = "0123456789abcdef"; 365 366 static char * 367 any_ntoa(const struct sockaddr *sa) 368 { 369 static char obuf[3 * 256]; 370 const char *in; 371 char *out; 372 int len; 373 374 #if __GNUC__ > 2 375 len = sa->sa_len - offsetof(struct sockaddr, sa_data); 376 #else 377 len = sa->sa_len - ((struct sockaddr*)&sa->sa_data - sa); 378 #endif 379 in = sa->sa_data; 380 out = obuf; 381 382 do { 383 *out++ = hexlist[(*in >> 4) & 15]; 384 *out++ = hexlist[(*in++) & 15]; 385 *out++ = '.'; 386 } while (--len > 0); 387 out[-1] = '\0'; 388 return obuf; 389 } 390 391 int 392 netmask_length(struct sockaddr *nm, int family) 393 { 394 static int 395 /* number of bits in a nibble */ 396 _t[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4 }, 397 /* good nibbles are 1111, 1110, 1100, 1000, 0000 */ 398 _g[] = { 1,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1 }; 399 int mask, good, zeroes, maskbytes, bit, i; 400 unsigned char *maskdata; 401 402 if (nm == NULL) 403 return 0; 404 405 mask = 0; 406 good = 1; 407 zeroes = 0; 408 409 switch (family) { 410 case AF_INET: { 411 struct sockaddr_in *nsin = (struct sockaddr_in *)nm; 412 maskdata = (unsigned char *)&nsin->sin_addr; 413 maskbytes = nsin->sin_len - 414 ((caddr_t)&nsin->sin_addr - (caddr_t)nsin); 415 break; 416 } 417 case AF_INET6: { 418 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nm; 419 maskdata = (unsigned char *)&sin6->sin6_addr; 420 maskbytes = sin6->sin6_len - 421 ((caddr_t)&sin6->sin6_addr - (caddr_t)sin6); 422 break; 423 } 424 default: 425 return 0; 426 } 427 428 /* 429 * Count the bits in the nibbles of the mask, and marking the 430 * netmask as not good (or at best, non-standard and very 431 * discouraged, in the case of AF_INET) if we find either of 432 * a nibble with non-contiguous bits, or a non-zero nibble 433 * after we've found a zero nibble. 434 */ 435 for (i = 0; i < maskbytes; i++) { 436 /* high nibble */ 437 mask += bit = _t[maskdata[i] >> 4]; 438 good &= _g[maskdata[i] >> 4]; 439 if (zeroes && bit) 440 good = 0; 441 if (bit == 0) 442 zeroes = 1; 443 /* low nibble */ 444 mask += bit = _t[maskdata[i] & 0xf]; 445 good &= _g[maskdata[i] & 0xf]; 446 if (zeroes && bit) 447 good = 0; 448 if (bit == 0) 449 zeroes = 1; 450 } 451 452 /* 453 * Always return the number of bits found, but as a negative 454 * if the mask wasn't one we like. 455 */ 456 return good ? mask : -mask; 457 } 458 459 char * 460 netmask_string(struct sockaddr *mask, int len, int family) 461 { 462 static char smask[INET6_ADDRSTRLEN]; 463 struct sockaddr_in nsin; 464 struct sockaddr_in6 nsin6; 465 466 if (len >= 0) 467 snprintf(smask, sizeof(smask), "%d", len); 468 else { 469 switch (family) { 470 case AF_INET: 471 memset(&nsin, 0, sizeof(nsin)); 472 memcpy(&nsin, mask, mask->sa_len); 473 snprintf(smask, sizeof(smask), "%s", 474 inet_ntoa(nsin.sin_addr)); 475 break; 476 case AF_INET6: 477 memset(&nsin6, 0, sizeof(nsin6)); 478 memcpy(&nsin6, mask, mask->sa_len); 479 inet_ntop(family, &nsin6.sin6_addr, smask, 480 sizeof(smask)); 481 break; 482 default: 483 snprintf(smask, sizeof(smask), "%s", any_ntoa(mask)); 484 } 485 } 486 487 return smask; 488 } 489 490 const char * 491 routename(struct sockaddr *sa, struct sockaddr *nm, int flags) 492 { 493 const char *cp; 494 static char line[50]; 495 struct hostent *hp; 496 static char domain[MAXHOSTNAMELEN + 1]; 497 static int first = 1; 498 struct in_addr in; 499 int nml; 500 501 if ((flags & RTF_HOST) == 0) 502 return netname(sa, nm); 503 504 if (first) { 505 first = 0; 506 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 507 (cp = strchr(domain, '.'))) 508 (void)strlcpy(domain, cp + 1, sizeof(domain)); 509 else 510 domain[0] = 0; 511 } 512 513 if (sa->sa_len == 0) 514 strlcpy(line, "default", sizeof(line)); 515 else switch (sa->sa_family) { 516 517 case AF_INET: 518 in = ((struct sockaddr_in *)sa)->sin_addr; 519 nml = netmask_length(nm, AF_INET); 520 521 cp = 0; 522 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) { 523 if (nml == 0) 524 cp = "default"; 525 else { 526 static char notdefault[sizeof(NOTDEFSTRING)]; 527 528 snprintf(notdefault, sizeof(notdefault), 529 "0.0.0.0/%s", 530 netmask_string(nm, nml, AF_INET)); 531 cp = notdefault; 532 } 533 } 534 if (cp == 0 && !nflag) { 535 hp = gethostbyaddr((char *)&in, sizeof(struct in_addr), 536 AF_INET); 537 if (hp) { 538 char *ccp; 539 if ((ccp = strchr(hp->h_name, '.')) && 540 !strcmp(ccp + 1, domain)) 541 *ccp = '\0'; 542 cp = hp->h_name; 543 } 544 } 545 if (cp) 546 (void)strlcpy(line, cp, sizeof(line)); 547 else 548 (void)strlcpy(line, inet_ntoa(in), sizeof(line)); 549 break; 550 551 case AF_LINK: 552 return (link_ntoa((struct sockaddr_dl *)sa)); 553 554 #ifdef INET6 555 case AF_INET6: 556 { 557 struct sockaddr_in6 sin6; 558 int niflags; 559 char nihost[NI_MAXHOST]; 560 561 niflags = 0; 562 if (nflag) 563 niflags |= NI_NUMERICHOST; 564 memset(&sin6, 0, sizeof(sin6)); 565 memcpy(&sin6, sa, sa->sa_len); 566 sin6.sin6_len = sizeof(struct sockaddr_in6); 567 sin6.sin6_family = AF_INET6; 568 #ifdef __KAME__ 569 if (sa->sa_len == sizeof(struct sockaddr_in6) && 570 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || 571 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && 572 sin6.sin6_scope_id == 0) { 573 sin6.sin6_scope_id = 574 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); 575 sin6.sin6_addr.s6_addr[2] = 0; 576 sin6.sin6_addr.s6_addr[3] = 0; 577 } 578 #endif 579 nml = netmask_length(nm, AF_INET6); 580 if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) { 581 if (nml == 0) 582 strlcpy(line, "::", sizeof(line)); 583 else 584 /* noncontiguous never happens in ipv6 */ 585 snprintf(line, sizeof(line), "::/%d", nml); 586 } 587 else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 588 nihost, sizeof(nihost), NULL, 0, niflags) != 0) 589 strlcpy(line, "invalid", sizeof(line)); 590 else { 591 char *ccp; 592 if (!nflag && (ccp = strchr(nihost, '.')) && 593 strcmp(ccp + 1, domain) == 0) 594 *ccp = '\0'; 595 strlcpy(line, nihost, sizeof(line)); 596 } 597 break; 598 } 599 #endif 600 601 #ifndef SMALL 602 case AF_NS: 603 return (ns_print((struct sockaddr_ns *)sa)); 604 605 case AF_ISO: 606 (void)snprintf(line, sizeof line, "iso %s", 607 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 608 break; 609 610 case AF_APPLETALK: 611 (void)snprintf(line, sizeof(line), "atalk %d.%d", 612 ((struct sockaddr_at *)sa)->sat_addr.s_net, 613 ((struct sockaddr_at *)sa)->sat_addr.s_node); 614 break; 615 #endif /* SMALL */ 616 617 default: 618 (void)snprintf(line, sizeof line, "(%d) %s", 619 sa->sa_family, any_ntoa(sa)); 620 break; 621 622 } 623 return (line); 624 } 625 626 /* 627 * Return the name of the network whose address is given. 628 * The address is assumed to be that of a net or subnet, not a host. 629 */ 630 const char * 631 netname(struct sockaddr *sa, struct sockaddr *nm) 632 { 633 const char *cp = 0; 634 static char line[50]; 635 struct netent *np = 0; 636 u_int32_t net, mask; 637 u_int32_t i; 638 int subnetshift, nml; 639 struct in_addr in; 640 641 switch (sa->sa_family) { 642 643 case AF_INET: 644 in = ((struct sockaddr_in *)sa)->sin_addr; 645 i = ntohl(in.s_addr); 646 nml = netmask_length(nm, AF_INET); 647 if (i == 0) { 648 if (nml == 0) 649 cp = "default"; 650 else { 651 static char notdefault[sizeof(NOTDEFSTRING)]; 652 653 snprintf(notdefault, sizeof(notdefault), 654 "0.0.0.0/%s", 655 netmask_string(nm, nml, AF_INET)); 656 cp = notdefault; 657 } 658 } 659 else if (!nflag) { 660 if (IN_CLASSA(i)) { 661 mask = IN_CLASSA_NET; 662 subnetshift = 8; 663 } else if (IN_CLASSB(i)) { 664 mask = IN_CLASSB_NET; 665 subnetshift = 8; 666 } else { 667 mask = IN_CLASSC_NET; 668 subnetshift = 4; 669 } 670 /* 671 * If there are more bits than the standard mask 672 * would suggest, subnets must be in use. 673 * Guess at the subnet mask, assuming reasonable 674 * width subnet fields. 675 */ 676 while (i &~ mask) 677 mask = (int32_t)mask >> subnetshift; 678 net = i & mask; 679 while ((mask & 1) == 0) 680 mask >>= 1, net >>= 1; 681 np = getnetbyaddr(net, AF_INET); 682 if (np) 683 cp = np->n_name; 684 } 685 if (cp) 686 (void)strlcpy(line, cp, sizeof(line)); 687 else { 688 #if 0 /* XXX - This is silly... */ 689 #define C(x) ((x) & 0xff) 690 if ((i & 0xffffff) == 0) 691 (void)snprintf(line, sizeof line, "%u", 692 C(i >> 24)); 693 else if ((i & 0xffff) == 0) 694 (void)snprintf(line, sizeof line, "%u.%u", 695 C(i >> 24), C(i >> 16)); 696 else if ((i & 0xff) == 0) 697 (void)snprintf(line, sizeof line, "%u.%u.%u", 698 C(i >> 24), C(i >> 16), C(i >> 8)); 699 else 700 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 701 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 702 #undef C 703 #else /* XXX */ 704 if (nml == 0) 705 strlcpy(line, inet_ntoa(in), sizeof(line)); 706 else if (nml < 0) { 707 snprintf(line, sizeof(line), "%s&%s", 708 inet_ntoa(in), 709 netmask_string(nm, nml, AF_INET)); 710 } else { 711 snprintf(line, sizeof(line), "%s/%d", 712 inet_ntoa(in), nml); 713 } 714 #endif /* XXX */ 715 } 716 break; 717 718 case AF_LINK: 719 return (link_ntoa((struct sockaddr_dl *)sa)); 720 721 #ifdef INET6 722 case AF_INET6: 723 { 724 struct sockaddr_in6 sin6; 725 int niflags; 726 727 niflags = 0; 728 if (nflag) 729 niflags |= NI_NUMERICHOST; 730 memset(&sin6, 0, sizeof(sin6)); 731 memcpy(&sin6, sa, sa->sa_len); 732 sin6.sin6_len = sizeof(struct sockaddr_in6); 733 sin6.sin6_family = AF_INET6; 734 #ifdef __KAME__ 735 if (sa->sa_len == sizeof(struct sockaddr_in6) && 736 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || 737 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && 738 sin6.sin6_scope_id == 0) { 739 sin6.sin6_scope_id = 740 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); 741 sin6.sin6_addr.s6_addr[2] = 0; 742 sin6.sin6_addr.s6_addr[3] = 0; 743 } 744 #endif 745 nml = netmask_length(nm, AF_INET6); 746 if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) { 747 if (nml == 0) 748 strlcpy(line, "::", sizeof(line)); 749 else 750 /* noncontiguous never happens in ipv6 */ 751 snprintf(line, sizeof(line), "::/%d", nml); 752 } 753 else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 754 line, sizeof(line), NULL, 0, niflags) != 0) 755 strlcpy(line, "invalid", sizeof(line)); 756 break; 757 } 758 #endif 759 760 #ifndef SMALL 761 case AF_NS: 762 return (ns_print((struct sockaddr_ns *)sa)); 763 764 case AF_ISO: 765 (void)snprintf(line, sizeof line, "iso %s", 766 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 767 break; 768 769 case AF_APPLETALK: 770 (void)snprintf(line, sizeof(line), "atalk %d.%d", 771 ((struct sockaddr_at *)sa)->sat_addr.s_net, 772 ((struct sockaddr_at *)sa)->sat_addr.s_node); 773 break; 774 #endif /* SMALL */ 775 776 default: 777 (void)snprintf(line, sizeof line, "af %d: %s", 778 sa->sa_family, any_ntoa(sa)); 779 break; 780 } 781 return (line); 782 } 783 784 static const char * 785 route_strerror(int error) 786 { 787 788 switch (error) { 789 case ESRCH: 790 return "not in table"; 791 case EBUSY: 792 return "entry in use"; 793 case ENOBUFS: 794 return "routing table overflow"; 795 default: 796 return strerror(error); 797 } 798 } 799 800 static void 801 set_metric(char *value, int key) 802 { 803 int flag = 0; 804 u_long noval, *valp = &noval; 805 806 switch (key) { 807 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 808 caseof(K_MTU, RTV_MTU, rmx_mtu); 809 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 810 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 811 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 812 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 813 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 814 caseof(K_RTT, RTV_RTT, rmx_rtt); 815 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 816 } 817 rtm_inits |= flag; 818 if (lockrest || locking) 819 rt_metrics.rmx_locks |= flag; 820 if (locking) 821 locking = 0; 822 *valp = atoi(value); 823 } 824 825 static int 826 newroute(int argc, char **argv) 827 { 828 const char *cmd, *dest = "", *gateway = ""; 829 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 830 int key; 831 struct hostent *hp = 0; 832 833 cmd = argv[0]; 834 af = 0; 835 if (*cmd != 'g') 836 shutdown(sock, SHUT_RD); /* Don't want to read back our messages */ 837 while (--argc > 0) { 838 if (**(++argv)== '-') { 839 switch (key = keyword(1 + *argv)) { 840 841 case K_SA: 842 af = PF_ROUTE; 843 aflen = sizeof(union sockunion); 844 break; 845 846 #ifndef SMALL 847 case K_ATALK: 848 af = AF_APPLETALK; 849 aflen = sizeof(struct sockaddr_at); 850 break; 851 #endif 852 853 case K_INET: 854 af = AF_INET; 855 aflen = sizeof(struct sockaddr_in); 856 break; 857 858 #ifdef INET6 859 case K_INET6: 860 af = AF_INET6; 861 aflen = sizeof(struct sockaddr_in6); 862 break; 863 #endif 864 865 case K_LINK: 866 af = AF_LINK; 867 aflen = sizeof(struct sockaddr_dl); 868 break; 869 870 #ifndef SMALL 871 case K_OSI: 872 case K_ISO: 873 af = AF_ISO; 874 aflen = sizeof(struct sockaddr_iso); 875 break; 876 877 case K_X25: 878 af = AF_CCITT; 879 aflen = sizeof(struct sockaddr_x25); 880 break; 881 882 case K_XNS: 883 af = AF_NS; 884 aflen = sizeof(struct sockaddr_ns); 885 break; 886 #endif /* SMALL */ 887 888 case K_IFACE: 889 case K_INTERFACE: 890 iflag++; 891 break; 892 case K_NOSTATIC: 893 flags &= ~RTF_STATIC; 894 break; 895 case K_LLINFO: 896 flags |= RTF_LLINFO; 897 break; 898 case K_LOCK: 899 locking = 1; 900 break; 901 case K_LOCKREST: 902 lockrest = 1; 903 break; 904 case K_HOST: 905 forcehost++; 906 break; 907 case K_REJECT: 908 flags |= RTF_REJECT; 909 break; 910 case K_BLACKHOLE: 911 flags |= RTF_BLACKHOLE; 912 break; 913 case K_CLONED: 914 flags |= RTF_CLONED; 915 break; 916 case K_PROTO1: 917 flags |= RTF_PROTO1; 918 break; 919 case K_PROTO2: 920 flags |= RTF_PROTO2; 921 break; 922 case K_CLONING: 923 flags |= RTF_CLONING; 924 break; 925 case K_XRESOLVE: 926 flags |= RTF_XRESOLVE; 927 break; 928 case K_STATIC: 929 flags |= RTF_STATIC; 930 break; 931 case K_IFA: 932 if (!--argc) 933 usage(1+*argv); 934 (void)getaddr(RTA_IFA, *++argv, 0); 935 break; 936 case K_IFP: 937 if (!--argc) 938 usage(1+*argv); 939 (void)getaddr(RTA_IFP, *++argv, 0); 940 break; 941 case K_GENMASK: 942 if (!--argc) 943 usage(1+*argv); 944 (void)getaddr(RTA_GENMASK, *++argv, 0); 945 break; 946 case K_GATEWAY: 947 if (!--argc) 948 usage(1+*argv); 949 (void)getaddr(RTA_GATEWAY, *++argv, 0); 950 break; 951 case K_DST: 952 if (!--argc) 953 usage(1+*argv); 954 ishost = getaddr(RTA_DST, *++argv, &hp); 955 dest = *argv; 956 break; 957 case K_NETMASK: 958 if (!--argc) 959 usage(1+*argv); 960 (void)getaddr(RTA_NETMASK, *++argv, 0); 961 /* FALLTHROUGH */ 962 case K_NET: 963 forcenet++; 964 break; 965 case K_PREFIXLEN: 966 if (!--argc) 967 usage(1+*argv); 968 ishost = prefixlen(*++argv); 969 break; 970 case K_MTU: 971 case K_HOPCOUNT: 972 case K_EXPIRE: 973 case K_RECVPIPE: 974 case K_SENDPIPE: 975 case K_SSTHRESH: 976 case K_RTT: 977 case K_RTTVAR: 978 if (!--argc) 979 usage(1+*argv); 980 set_metric(*++argv, key); 981 break; 982 default: 983 usage(1+*argv); 984 } 985 } else { 986 if ((rtm_addrs & RTA_DST) == 0) { 987 dest = *argv; 988 ishost = getaddr(RTA_DST, *argv, &hp); 989 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 990 gateway = *argv; 991 (void)getaddr(RTA_GATEWAY, *argv, &hp); 992 } else { 993 ret = atoi(*argv); 994 995 if (ret == 0) { 996 if (strcmp(*argv, "0") == 0) { 997 if (!qflag) { 998 warnx("%s, %s", 999 "old usage of trailing 0", 1000 "assuming route to if"); 1001 } 1002 } else 1003 usage(NULL); 1004 iflag = 1; 1005 continue; 1006 } else if (ret > 0 && ret < 10) { 1007 if (!qflag) { 1008 warnx("%s, %s", 1009 "old usage of trailing digit", 1010 "assuming route via gateway"); 1011 } 1012 iflag = 0; 1013 continue; 1014 } 1015 (void)getaddr(RTA_NETMASK, *argv, 0); 1016 } 1017 } 1018 } 1019 if (forcehost && forcenet) 1020 errx(1, "-host and -net conflict"); 1021 else if (forcehost) 1022 ishost = 1; 1023 else if (forcenet) 1024 ishost = 0; 1025 flags |= RTF_UP; 1026 if (ishost) 1027 flags |= RTF_HOST; 1028 if (iflag == 0) 1029 flags |= RTF_GATEWAY; 1030 for (attempts = 1; ; attempts++) { 1031 errno = 0; 1032 if ((ret = rtmsg(*cmd, flags)) == 0) 1033 break; 1034 if (errno != ENETUNREACH && errno != ESRCH) 1035 break; 1036 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 1037 hp->h_addr_list++; 1038 memmove(&so_gate.sin.sin_addr, hp->h_addr_list[0], 1039 hp->h_length); 1040 } else 1041 break; 1042 } 1043 if (*cmd == 'g') 1044 return (ret != 0); 1045 if (!qflag) { 1046 oerrno = errno; 1047 (void)printf("%s %s %s", cmd, ishost? "host" : "net", dest); 1048 if (*gateway) { 1049 (void)printf(": gateway %s", gateway); 1050 if (attempts > 1 && ret == 0 && af == AF_INET) 1051 (void)printf(" (%s)", 1052 inet_ntoa(so_gate.sin.sin_addr)); 1053 } 1054 if (ret == 0) 1055 (void)printf("\n"); 1056 else 1057 (void)printf(": %s\n", route_strerror(oerrno)); 1058 } 1059 return (ret != 0); 1060 } 1061 1062 static void 1063 inet_makenetandmask(u_int32_t net, struct sockaddr_in *isin) 1064 { 1065 u_int32_t addr, mask = 0; 1066 char *cp; 1067 1068 rtm_addrs |= RTA_NETMASK; 1069 if (net == 0) 1070 mask = addr = 0; 1071 else if (net < 128) { 1072 addr = net << IN_CLASSA_NSHIFT; 1073 mask = IN_CLASSA_NET; 1074 } else if (net < 192) { 1075 addr = net << IN_CLASSA_NSHIFT; 1076 mask = IN_CLASSB_NET; 1077 } else if (net < 224) { 1078 addr = net << IN_CLASSA_NSHIFT; 1079 mask = IN_CLASSC_NET; 1080 } else if (net < 256) { 1081 addr = net << IN_CLASSA_NSHIFT; 1082 mask = IN_CLASSD_NET; 1083 } else if (net < 49152) { /* 192 * 256 */ 1084 addr = net << IN_CLASSB_NSHIFT; 1085 mask = IN_CLASSB_NET; 1086 } else if (net < 57344) { /* 224 * 256 */ 1087 addr = net << IN_CLASSB_NSHIFT; 1088 mask = IN_CLASSC_NET; 1089 } else if (net < 65536) { 1090 addr = net << IN_CLASSB_NSHIFT; 1091 mask = IN_CLASSB_NET; 1092 } else if (net < 14680064L) { /* 224 * 65536 */ 1093 addr = net << IN_CLASSC_NSHIFT; 1094 mask = IN_CLASSC_NET; 1095 } else if (net < 16777216L) { 1096 addr = net << IN_CLASSC_NSHIFT; 1097 mask = IN_CLASSD_NET; 1098 } else { 1099 addr = net; 1100 if ((addr & IN_CLASSA_HOST) == 0) 1101 mask = IN_CLASSA_NET; 1102 else if ((addr & IN_CLASSB_HOST) == 0) 1103 mask = IN_CLASSB_NET; 1104 else if ((addr & IN_CLASSC_HOST) == 0) 1105 mask = IN_CLASSC_NET; 1106 else 1107 mask = -1; 1108 } 1109 isin->sin_addr.s_addr = htonl(addr); 1110 isin = &so_mask.sin; 1111 isin->sin_addr.s_addr = htonl(mask); 1112 isin->sin_len = 0; 1113 isin->sin_family = 0; 1114 cp = (char *)(&isin->sin_addr + 1); 1115 while (*--cp == 0 && cp > (char *)isin) 1116 ; 1117 isin->sin_len = 1 + cp - (char *)isin; 1118 isin->sin_family = AF_INET; 1119 } 1120 1121 #ifdef INET6 1122 /* 1123 * XXX the function may need more improvement... 1124 */ 1125 static int 1126 inet6_makenetandmask(struct sockaddr_in6 *sin6) 1127 { 1128 const char *plen; 1129 struct in6_addr in6; 1130 1131 plen = NULL; 1132 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) && 1133 sin6->sin6_scope_id == 0) { 1134 plen = "0"; 1135 } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) { 1136 /* aggregatable global unicast - RFC2374 */ 1137 memset(&in6, 0, sizeof(in6)); 1138 if (!memcmp(&sin6->sin6_addr.s6_addr[8], &in6.s6_addr[8], 8)) 1139 plen = "64"; 1140 } 1141 1142 if (!plen || strcmp(plen, "128") == 0) 1143 return 1; 1144 else { 1145 rtm_addrs |= RTA_NETMASK; 1146 (void)prefixlen(plen); 1147 return 0; 1148 } 1149 } 1150 #endif 1151 1152 /* 1153 * Interpret an argument as a network address of some kind, 1154 * returning 1 if a host address, 0 if a network address. 1155 */ 1156 static int 1157 getaddr(int which, char *s, struct hostent **hpp) 1158 { 1159 sup su; 1160 struct hostent *hp; 1161 struct netent *np; 1162 u_int32_t val; 1163 char *t; 1164 int afamily; /* local copy of af so we can change it */ 1165 1166 if (af == 0) { 1167 af = AF_INET; 1168 aflen = sizeof(struct sockaddr_in); 1169 } 1170 afamily = af; 1171 rtm_addrs |= which; 1172 switch (which) { 1173 case RTA_DST: 1174 su = &so_dst; 1175 break; 1176 case RTA_GATEWAY: 1177 su = &so_gate; 1178 break; 1179 case RTA_NETMASK: 1180 su = &so_mask; 1181 break; 1182 case RTA_GENMASK: 1183 su = &so_genmask; 1184 break; 1185 case RTA_IFP: 1186 su = &so_ifp; 1187 afamily = AF_LINK; 1188 break; 1189 case RTA_IFA: 1190 su = &so_ifa; 1191 su->sa.sa_family = af; 1192 break; 1193 default: 1194 su = NULL; 1195 usage("Internal Error"); 1196 /*NOTREACHED*/ 1197 } 1198 su->sa.sa_len = aflen; 1199 su->sa.sa_family = afamily; /* cases that don't want it have left already */ 1200 if (strcmp(s, "default") == 0) { 1201 switch (which) { 1202 case RTA_DST: 1203 forcenet++; 1204 (void)getaddr(RTA_NETMASK, s, 0); 1205 break; 1206 case RTA_NETMASK: 1207 case RTA_GENMASK: 1208 su->sa.sa_len = 0; 1209 } 1210 return (0); 1211 } 1212 switch (afamily) { 1213 #ifdef INET6 1214 case AF_INET6: 1215 { 1216 struct addrinfo hints, *res; 1217 char *slash = 0; 1218 1219 if (which == RTA_DST && (slash = (strrchr(s, '/'))) != 0) 1220 *slash = '\0'; 1221 memset(&hints, 0, sizeof(hints)); 1222 hints.ai_family = afamily; /*AF_INET6*/ 1223 hints.ai_flags = AI_NUMERICHOST; 1224 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1225 if (getaddrinfo(s, "0", &hints, &res) != 0) { 1226 hints.ai_flags = 0; 1227 if (slash) { 1228 *slash = '/'; 1229 slash = 0; 1230 } 1231 if (getaddrinfo(s, "0", &hints, &res) != 0) 1232 errx(1, "%s: bad value", s); 1233 } 1234 if (slash) 1235 *slash = '/'; 1236 if (sizeof(su->sin6) != res->ai_addrlen) 1237 errx(1, "%s: bad value", s); 1238 if (res->ai_next) 1239 errx(1, "%s: address resolved to multiple values", s); 1240 memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6)); 1241 freeaddrinfo(res); 1242 #ifdef __KAME__ 1243 if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) || 1244 IN6_IS_ADDR_MC_LINKLOCAL(&su->sin6.sin6_addr)) && 1245 su->sin6.sin6_scope_id) { 1246 *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] = 1247 htons(su->sin6.sin6_scope_id); 1248 su->sin6.sin6_scope_id = 0; 1249 } 1250 #endif 1251 if (hints.ai_flags == AI_NUMERICHOST) { 1252 if (slash) 1253 return (prefixlen(slash + 1)); 1254 if (which == RTA_DST) 1255 return (inet6_makenetandmask(&su->sin6)); 1256 return (0); 1257 } else 1258 return (1); 1259 } 1260 #endif 1261 1262 #ifndef SMALL 1263 case AF_NS: 1264 if (which == RTA_DST) { 1265 struct sockaddr_ns *sms = &(so_mask.sns); 1266 memset(sms, 0, sizeof(*sms)); 1267 sms->sns_family = 0; 1268 sms->sns_len = 6; 1269 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 1270 rtm_addrs |= RTA_NETMASK; 1271 } 1272 su->sns.sns_addr = ns_addr(s); 1273 return (!ns_nullhost(su->sns.sns_addr)); 1274 1275 case AF_OSI: 1276 su->siso.siso_addr = *iso_addr(s); 1277 if (which == RTA_NETMASK || which == RTA_GENMASK) { 1278 char *cp = (char *)TSEL(&su->siso); 1279 su->siso.siso_nlen = 0; 1280 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 1281 su->siso.siso_len = 1 + cp - (char *)su; 1282 } 1283 return (1); 1284 1285 case AF_CCITT: 1286 ccitt_addr(s, &su->sx25); 1287 return (which == RTA_DST ? x25_makemask() : 1); 1288 #endif /* SMALL */ 1289 1290 case PF_ROUTE: 1291 su->sa.sa_len = sizeof(*su); 1292 sockaddr(s, &su->sa); 1293 return (1); 1294 1295 #ifndef SMALL 1296 case AF_APPLETALK: 1297 t = strchr (s, '.'); 1298 if (!t) { 1299 badataddr: 1300 errx(1, "bad address: %s", s); 1301 } 1302 val = atoi (s); 1303 if (val > 65535) 1304 goto badataddr; 1305 su->sat.sat_addr.s_net = val; 1306 val = atoi (t); 1307 if (val > 256) 1308 goto badataddr; 1309 su->sat.sat_addr.s_node = val; 1310 rtm_addrs |= RTA_NETMASK; 1311 return(forcehost || su->sat.sat_addr.s_node != 0); 1312 #endif 1313 1314 case AF_LINK: 1315 link_addr(s, &su->sdl); 1316 return (1); 1317 1318 case AF_INET: 1319 default: 1320 break; 1321 } 1322 1323 if (hpp == NULL) 1324 hpp = &hp; 1325 *hpp = NULL; 1326 1327 if ((t = strchr(s, '/')) != NULL && which == RTA_DST) { 1328 *t = '\0'; 1329 if (forcenet == 0) { 1330 if ((val = inet_addr(s)) != INADDR_NONE) { 1331 inet_makenetandmask(htonl(val), &su->sin); 1332 return prefixlen(&t[1]); 1333 } 1334 } else { 1335 if ((val = inet_network(s)) != INADDR_NONE) { 1336 inet_makenetandmask(val, &su->sin); 1337 return prefixlen(&t[1]); 1338 } 1339 } 1340 *t = '/'; 1341 } 1342 if (inet_aton(s, &su->sin.sin_addr) && 1343 (which != RTA_DST || forcenet == 0)) { 1344 val = su->sin.sin_addr.s_addr; 1345 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 1346 return (1); 1347 else { 1348 val = ntohl(val); 1349 goto netdone; 1350 } 1351 } 1352 if ((val = inet_network(s)) != INADDR_NONE || 1353 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 1354 netdone: 1355 if (which == RTA_DST) 1356 inet_makenetandmask(val, &su->sin); 1357 return (0); 1358 } 1359 hp = gethostbyname(s); 1360 if (hp) { 1361 *hpp = hp; 1362 su->sin.sin_family = hp->h_addrtype; 1363 memmove(&su->sin.sin_addr, hp->h_addr, hp->h_length); 1364 return (1); 1365 } 1366 errx(1, "%s: bad value", s); 1367 /*NOTREACHED*/ 1368 } 1369 1370 int 1371 prefixlen(const char *s) 1372 { 1373 int len = atoi(s), q, r; 1374 int max; 1375 1376 switch (af) { 1377 case AF_INET: 1378 max = sizeof(struct in_addr) * 8; 1379 break; 1380 #ifdef INET6 1381 case AF_INET6: 1382 max = sizeof(struct in6_addr) * 8; 1383 break; 1384 #endif 1385 default: 1386 errx(1, "prefixlen is not supported with af %d", af); 1387 /*NOTREACHED*/ 1388 } 1389 1390 rtm_addrs |= RTA_NETMASK; 1391 if (len < -1 || len > max) 1392 errx(1, "%s: bad value", s); 1393 1394 q = len >> 3; 1395 r = len & 7; 1396 switch (af) { 1397 case AF_INET: 1398 memset(&so_mask, 0, sizeof(so_mask)); 1399 so_mask.sin.sin_family = AF_INET; 1400 so_mask.sin.sin_len = sizeof(struct sockaddr_in); 1401 so_mask.sin.sin_addr.s_addr = htonl(0xffffffff << (32 - len)); 1402 break; 1403 #ifdef INET6 1404 case AF_INET6: 1405 so_mask.sin6.sin6_family = AF_INET6; 1406 so_mask.sin6.sin6_len = sizeof(struct sockaddr_in6); 1407 memset((void *)&so_mask.sin6.sin6_addr, 0, 1408 sizeof(so_mask.sin6.sin6_addr)); 1409 if (q > 0) 1410 memset((void *)&so_mask.sin6.sin6_addr, 0xff, q); 1411 if (r > 0) 1412 *((u_char *)&so_mask.sin6.sin6_addr + q) = 1413 (0xff00 >> r) & 0xff; 1414 break; 1415 #endif 1416 } 1417 return (len == max); 1418 } 1419 1420 #ifndef SMALL 1421 int 1422 x25_makemask(void) 1423 { 1424 char *cp; 1425 1426 if ((rtm_addrs & RTA_NETMASK) == 0) { 1427 rtm_addrs |= RTA_NETMASK; 1428 for (cp = (char *)&so_mask.sx25.x25_net; 1429 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 1430 *cp = -1; 1431 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 1432 } 1433 return 0; 1434 } 1435 1436 1437 const char * 1438 ns_print(struct sockaddr_ns *sns) 1439 { 1440 struct ns_addr work; 1441 union { union ns_net net_e; u_int32_t int32_t_e; } net; 1442 u_short port; 1443 static char mybuf[50], cport[10], chost[25]; 1444 const char *host = ""; 1445 char *p; 1446 u_char *q; 1447 1448 work = sns->sns_addr; 1449 port = ntohs(work.x_port); 1450 work.x_port = 0; 1451 net.net_e = work.x_net; 1452 if (ns_nullhost(work) && net.int32_t_e == 0) { 1453 if (!port) 1454 return ("*.*"); 1455 (void)snprintf(mybuf, sizeof mybuf, "*.%XH", port); 1456 return (mybuf); 1457 } 1458 1459 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0) 1460 host = "any"; 1461 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0) 1462 host = "*"; 1463 else { 1464 q = work.x_host.c_host; 1465 (void)snprintf(chost, sizeof chost, "%02X%02X%02X%02X%02X%02XH", 1466 q[0], q[1], q[2], q[3], q[4], q[5]); 1467 for (p = chost; *p == '0' && p < chost + 12; p++) 1468 /* void */; 1469 host = p; 1470 } 1471 if (port) 1472 (void)snprintf(cport, sizeof cport, ".%XH", htons(port)); 1473 else 1474 *cport = 0; 1475 1476 (void)snprintf(mybuf, sizeof mybuf, "%XH.%s%s", 1477 (u_int32_t)ntohl(net.int32_t_e), host, cport); 1478 return (mybuf); 1479 } 1480 1481 static void 1482 interfaces(void) 1483 { 1484 size_t needed; 1485 int mib[6]; 1486 char *buf, *lim, *next; 1487 struct rt_msghdr *rtm; 1488 1489 mib[0] = CTL_NET; 1490 mib[1] = PF_ROUTE; 1491 mib[2] = 0; /* protocol */ 1492 mib[3] = 0; /* wildcard address family */ 1493 mib[4] = NET_RT_IFLIST; 1494 mib[5] = 0; /* no flags */ 1495 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1496 err(1, "route-sysctl-estimate"); 1497 if (needed) { 1498 if ((buf = malloc(needed)) == NULL) 1499 err(1, "malloc"); 1500 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 1501 err(1, "actual retrieval of interface table"); 1502 lim = buf + needed; 1503 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1504 rtm = (struct rt_msghdr *)next; 1505 print_rtmsg(rtm, rtm->rtm_msglen); 1506 } 1507 free(buf); 1508 } 1509 } 1510 1511 static void 1512 monitor(void) 1513 { 1514 int n; 1515 char msg[2048]; 1516 1517 verbose = 1; 1518 if (debugonly) { 1519 interfaces(); 1520 exit(0); 1521 } 1522 for(;;) { 1523 time_t now; 1524 n = read(sock, msg, 2048); 1525 now = time(NULL); 1526 (void)printf("got message of size %d on %s", n, ctime(&now)); 1527 print_rtmsg((struct rt_msghdr *)msg, n); 1528 } 1529 } 1530 1531 #endif /* SMALL */ 1532 1533 1534 struct { 1535 struct rt_msghdr m_rtm; 1536 char m_space[512]; 1537 } m_rtmsg; 1538 1539 static int 1540 rtmsg(int cmd, int flags) 1541 { 1542 static int seq; 1543 int rlen; 1544 char *cp = m_rtmsg.m_space; 1545 int l; 1546 1547 #define NEXTADDR(w, u) \ 1548 if (rtm_addrs & (w)) {\ 1549 l = ROUNDUP(u.sa.sa_len); memmove(cp, &(u), l); cp += l;\ 1550 if (verbose && ! shortoutput) sodump(&(u),#u);\ 1551 } 1552 1553 errno = 0; 1554 memset(&m_rtmsg, 0, sizeof(m_rtmsg)); 1555 if (cmd == 'a') 1556 cmd = RTM_ADD; 1557 else if (cmd == 'c') 1558 cmd = RTM_CHANGE; 1559 else if (cmd == 'g') { 1560 #ifdef SMALL 1561 return (-1); 1562 #else /* SMALL */ 1563 cmd = RTM_GET; 1564 if (so_ifp.sa.sa_family == 0) { 1565 so_ifp.sa.sa_family = AF_LINK; 1566 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1567 rtm_addrs |= RTA_IFP; 1568 } 1569 #endif /* SMALL */ 1570 } else 1571 cmd = RTM_DELETE; 1572 #define rtm m_rtmsg.m_rtm 1573 rtm.rtm_type = cmd; 1574 rtm.rtm_flags = flags; 1575 rtm.rtm_version = RTM_VERSION; 1576 rtm.rtm_seq = ++seq; 1577 rtm.rtm_addrs = rtm_addrs; 1578 rtm.rtm_rmx = rt_metrics; 1579 rtm.rtm_inits = rtm_inits; 1580 1581 if (rtm_addrs & RTA_NETMASK) 1582 mask_addr(); 1583 NEXTADDR(RTA_DST, so_dst); 1584 NEXTADDR(RTA_GATEWAY, so_gate); 1585 NEXTADDR(RTA_NETMASK, so_mask); 1586 NEXTADDR(RTA_GENMASK, so_genmask); 1587 NEXTADDR(RTA_IFP, so_ifp); 1588 NEXTADDR(RTA_IFA, so_ifa); 1589 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1590 if (verbose && ! shortoutput) { 1591 if (rtm_addrs) 1592 putchar('\n'); 1593 print_rtmsg(&rtm, l); 1594 } 1595 if (debugonly) 1596 return (0); 1597 if ((rlen = write(sock, (char *)&m_rtmsg, l)) < 0) { 1598 warnx("writing to routing socket: %s", route_strerror(errno)); 1599 return (-1); 1600 } 1601 if (rlen < l) { 1602 warnx("write to routing socket, got %d for rlen", rlen); 1603 return 1; 1604 } 1605 #ifndef SMALL 1606 if (cmd == RTM_GET) { 1607 do { 1608 l = read(sock, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1609 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1610 if (l < 0) 1611 err(1, "read from routing socket"); 1612 else 1613 return print_getmsg(&rtm, l); 1614 } 1615 #endif /* SMALL */ 1616 #undef rtm 1617 return (0); 1618 } 1619 1620 static void 1621 mask_addr(void) 1622 { 1623 int olen = so_mask.sa.sa_len; 1624 char *cp1 = olen + (char *)&so_mask, *cp2; 1625 1626 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1627 if (*--cp1 != 0) { 1628 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1629 break; 1630 } 1631 if ((rtm_addrs & RTA_DST) == 0) 1632 return; 1633 switch (so_dst.sa.sa_family) { 1634 case AF_INET: 1635 #ifdef INET6 1636 case AF_INET6: 1637 #endif 1638 #ifndef SMALL 1639 case AF_APPLETALK: 1640 case AF_NS: 1641 case AF_CCITT: 1642 #endif /* SMALL */ 1643 case 0: 1644 return; 1645 #ifndef SMALL 1646 case AF_ISO: 1647 olen = MIN(so_dst.siso.siso_nlen, 1648 MAX(so_mask.sa.sa_len - 6, 0)); 1649 break; 1650 #endif /* SMALL */ 1651 } 1652 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1653 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1654 while (cp2 > cp1) 1655 *--cp2 = 0; 1656 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1657 while (cp1 > so_dst.sa.sa_data) 1658 *--cp1 &= *--cp2; 1659 #ifndef SMALL 1660 switch (so_dst.sa.sa_family) { 1661 case AF_ISO: 1662 so_dst.siso.siso_nlen = olen; 1663 break; 1664 } 1665 #endif /* SMALL */ 1666 } 1667 1668 const char *msgtypes[] = { 1669 "", 1670 "RTM_ADD: Add Route", 1671 "RTM_DELETE: Delete Route", 1672 "RTM_CHANGE: Change Metrics or flags", 1673 "RTM_GET: Report Metrics", 1674 "RTM_LOSING: Kernel Suspects Partitioning", 1675 "RTM_REDIRECT: Told to use different route", 1676 "RTM_MISS: Lookup failed on this address", 1677 "RTM_LOCK: fix specified metrics", 1678 "RTM_OLDADD: caused by SIOCADDRT", 1679 "RTM_OLDDEL: caused by SIOCDELRT", 1680 "RTM_RESOLVE: Route created by cloning", 1681 "RTM_NEWADDR: address being added to iface", 1682 "RTM_DELADDR: address being removed from iface", 1683 "RTM_OIFINFO: iface status change (pre-1.5)", 1684 "RTM_IFINFO: iface status change", 1685 "RTM_IFANNOUNCE: iface arrival/departure", 1686 "RTM_IEEE80211: IEEE80211 wireless event", 1687 0, 1688 }; 1689 1690 const char metricnames[] = 1691 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount\1mtu"; 1692 const char routeflags[] = 1693 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016CLONED\017PROTO2\020PROTO1"; 1694 const char ifnetflags[] = 1695 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6NOTRAILERS\7RUNNING\010NOARP\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1\017LINK2\020MULTICAST"; 1696 const char addrnames[] = 1697 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1698 1699 1700 #ifndef SMALL 1701 static const char * 1702 linkstate(struct if_msghdr *ifm) 1703 { 1704 static char buf[64]; 1705 1706 switch (ifm->ifm_data.ifi_link_state) { 1707 case LINK_STATE_UNKNOWN: 1708 return "carrier: unknown"; 1709 case LINK_STATE_DOWN: 1710 return "carrier: no carrier"; 1711 case LINK_STATE_UP: 1712 return "carrier: active"; 1713 default: 1714 (void)snprintf(buf, sizeof(buf), "carrier: 0x%x", 1715 ifm->ifm_data.ifi_link_state); 1716 return buf; 1717 } 1718 } 1719 #endif /* SMALL */ 1720 1721 static void 1722 print_rtmsg(struct rt_msghdr *rtm, int msglen) 1723 { 1724 struct if_msghdr *ifm; 1725 struct ifa_msghdr *ifam; 1726 struct if_announcemsghdr *ifan; 1727 union { 1728 struct ieee80211_join_event join; 1729 struct ieee80211_leave_event leave; 1730 struct ieee80211_replay_event replay; 1731 struct ieee80211_michael_event michael; 1732 } ev; 1733 size_t evlen = 0; 1734 1735 if (verbose == 0) 1736 return; 1737 if (rtm->rtm_version != RTM_VERSION) { 1738 (void)printf("routing message version %d not understood\n", 1739 rtm->rtm_version); 1740 return; 1741 } 1742 if (msgtypes[rtm->rtm_type]) 1743 (void)printf("%s: ", msgtypes[rtm->rtm_type]); 1744 else 1745 (void)printf("#%d: ", rtm->rtm_type); 1746 (void)printf("len %d, ", rtm->rtm_msglen); 1747 switch (rtm->rtm_type) { 1748 case RTM_IFINFO: 1749 ifm = (struct if_msghdr *)rtm; 1750 (void)printf("if# %d, %s, flags: ", ifm->ifm_index, 1751 #ifdef SMALL 1752 "" 1753 #else 1754 linkstate(ifm) 1755 #endif /* SMALL */ 1756 ); 1757 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1758 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1759 break; 1760 case RTM_NEWADDR: 1761 case RTM_DELADDR: 1762 ifam = (struct ifa_msghdr *)rtm; 1763 (void)printf("metric %d, flags: ", ifam->ifam_metric); 1764 bprintf(stdout, ifam->ifam_flags, routeflags); 1765 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1766 break; 1767 case RTM_IEEE80211: 1768 ifan = (struct if_announcemsghdr *)rtm; 1769 (void)printf("if# %d, what: ", ifan->ifan_index); 1770 switch (ifan->ifan_what) { 1771 case RTM_IEEE80211_ASSOC: 1772 printf("associate"); 1773 break; 1774 case RTM_IEEE80211_REASSOC: 1775 printf("re-associate"); 1776 break; 1777 case RTM_IEEE80211_DISASSOC: 1778 printf("disassociate"); 1779 break; 1780 case RTM_IEEE80211_SCAN: 1781 printf("scan complete"); 1782 break; 1783 case RTM_IEEE80211_JOIN: 1784 evlen = sizeof(ev.join); 1785 printf("join"); 1786 break; 1787 case RTM_IEEE80211_LEAVE: 1788 evlen = sizeof(ev.leave); 1789 printf("leave"); 1790 break; 1791 case RTM_IEEE80211_MICHAEL: 1792 evlen = sizeof(ev.michael); 1793 printf("michael"); 1794 break; 1795 case RTM_IEEE80211_REPLAY: 1796 evlen = sizeof(ev.replay); 1797 printf("replay"); 1798 break; 1799 default: 1800 evlen = 0; 1801 printf("#%d", ifan->ifan_what); 1802 break; 1803 } 1804 if (sizeof(*ifan) + evlen > ifan->ifan_msglen) { 1805 printf(" (truncated)\n"); 1806 break; 1807 } 1808 (void)memcpy(&ev, (ifan + 1), evlen); 1809 switch (ifan->ifan_what) { 1810 case RTM_IEEE80211_JOIN: 1811 case RTM_IEEE80211_LEAVE: 1812 printf(" mac %" PRIETHER, 1813 PRIETHER_ARGS(ev.join.iev_addr)); 1814 break; 1815 case RTM_IEEE80211_REPLAY: 1816 case RTM_IEEE80211_MICHAEL: 1817 printf(" src %" PRIETHER " dst %" PRIETHER 1818 " cipher %" PRIu8 " keyix %" PRIu8, 1819 PRIETHER_ARGS(ev.replay.iev_src), 1820 PRIETHER_ARGS(ev.replay.iev_dst), 1821 ev.replay.iev_cipher, 1822 ev.replay.iev_keyix); 1823 if (ifan->ifan_what == RTM_IEEE80211_REPLAY) { 1824 printf(" key rsc %#" PRIx64 1825 " frame rsc %#" PRIx64, 1826 ev.replay.iev_keyrsc, ev.replay.iev_rsc); 1827 } 1828 break; 1829 default: 1830 break; 1831 } 1832 printf("\n"); 1833 break; 1834 case RTM_IFANNOUNCE: 1835 ifan = (struct if_announcemsghdr *)rtm; 1836 (void)printf("if# %d, what: ", ifan->ifan_index); 1837 switch (ifan->ifan_what) { 1838 case IFAN_ARRIVAL: 1839 printf("arrival"); 1840 break; 1841 case IFAN_DEPARTURE: 1842 printf("departure"); 1843 break; 1844 default: 1845 printf("#%d", ifan->ifan_what); 1846 break; 1847 } 1848 printf("\n"); 1849 break; 1850 default: 1851 (void)printf("pid %d, seq %d, errno %d, flags: ", 1852 rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1853 bprintf(stdout, rtm->rtm_flags, routeflags); 1854 pmsg_common(rtm); 1855 } 1856 } 1857 1858 #ifndef SMALL 1859 static int 1860 print_getmsg(struct rt_msghdr *rtm, int msglen) 1861 { 1862 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL, *ifa = NULL; 1863 struct sockaddr_dl *ifp = NULL; 1864 struct sockaddr *sa; 1865 char *cp; 1866 int i; 1867 1868 if (! shortoutput) 1869 (void)printf(" route to: %s\n", 1870 routename((struct sockaddr *) &so_dst, NULL, RTF_HOST)); 1871 if (rtm->rtm_version != RTM_VERSION) { 1872 warnx("routing message version %d not understood", 1873 rtm->rtm_version); 1874 return 1; 1875 } 1876 if (rtm->rtm_msglen > msglen) { 1877 warnx("message length mismatch, in packet %d, returned %d", 1878 rtm->rtm_msglen, msglen); 1879 } 1880 if (rtm->rtm_errno) { 1881 warnx("RTM_GET: %s (errno %d)", 1882 strerror(rtm->rtm_errno), rtm->rtm_errno); 1883 return 1; 1884 } 1885 cp = ((char *)(rtm + 1)); 1886 if (rtm->rtm_addrs) 1887 for (i = 1; i; i <<= 1) 1888 if (i & rtm->rtm_addrs) { 1889 sa = (struct sockaddr *)cp; 1890 switch (i) { 1891 case RTA_DST: 1892 dst = sa; 1893 break; 1894 case RTA_GATEWAY: 1895 gate = sa; 1896 break; 1897 case RTA_NETMASK: 1898 mask = sa; 1899 break; 1900 case RTA_IFP: 1901 if (sa->sa_family == AF_LINK && 1902 ((struct sockaddr_dl *)sa)->sdl_nlen) 1903 ifp = (struct sockaddr_dl *)sa; 1904 break; 1905 case RTA_IFA: 1906 ifa = sa; 1907 break; 1908 } 1909 ADVANCE(cp, sa); 1910 } 1911 if (dst && mask) 1912 mask->sa_family = dst->sa_family; /* XXX */ 1913 if (dst && ! shortoutput) 1914 (void)printf("destination: %s\n", 1915 routename(dst, mask, RTF_HOST)); 1916 if (mask && ! shortoutput) { 1917 int savenflag = nflag; 1918 1919 nflag = 1; 1920 (void)printf(" mask: %s\n", 1921 routename(mask, NULL, RTF_HOST)); 1922 nflag = savenflag; 1923 } 1924 if (gate && rtm->rtm_flags & RTF_GATEWAY) { 1925 const char *name; 1926 1927 name = routename(gate, NULL, RTF_HOST); 1928 if (shortoutput) { 1929 if (*name == '\0') 1930 return (1); 1931 (void)printf("%s\n", name); 1932 } else 1933 (void)printf(" gateway: %s\n", name); 1934 } 1935 if (ifa && ! shortoutput) 1936 (void)printf(" local addr: %s\n", 1937 routename(ifa, NULL, RTF_HOST)); 1938 if (ifp && ! shortoutput) 1939 (void)printf(" interface: %.*s\n", 1940 ifp->sdl_nlen, ifp->sdl_data); 1941 if (! shortoutput) { 1942 (void)printf(" flags: "); 1943 bprintf(stdout, rtm->rtm_flags, routeflags); 1944 } 1945 1946 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1947 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1948 1949 if (! shortoutput) { 1950 (void)printf("\n%s\n", "\ 1951 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1952 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1953 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1954 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1955 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1956 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1957 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1958 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1959 if (rtm->rtm_rmx.rmx_expire) 1960 rtm->rtm_rmx.rmx_expire -= time(0); 1961 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1962 } 1963 #undef lock 1964 #undef msec 1965 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1966 1967 if (shortoutput) 1968 return ((rtm->rtm_addrs & RTF_GATEWAY) == 0); 1969 else if (verbose) 1970 pmsg_common(rtm); 1971 else if (rtm->rtm_addrs &~ RTA_IGN) { 1972 (void)printf("sockaddrs: "); 1973 bprintf(stdout, rtm->rtm_addrs, addrnames); 1974 putchar('\n'); 1975 } 1976 return 0; 1977 #undef RTA_IGN 1978 } 1979 #endif /* SMALL */ 1980 1981 void 1982 pmsg_common(struct rt_msghdr *rtm) 1983 { 1984 (void)printf("\nlocks: "); 1985 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1986 (void)printf(" inits: "); 1987 bprintf(stdout, rtm->rtm_inits, metricnames); 1988 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1989 } 1990 1991 static void 1992 pmsg_addrs(char *cp, int addrs) 1993 { 1994 struct sockaddr *sa[RTAX_MAX]; 1995 int i, nmf; 1996 1997 if (addrs != 0) { 1998 (void)printf("\nsockaddrs: "); 1999 bprintf(stdout, addrs, addrnames); 2000 (void)putchar('\n'); 2001 nmf = -1; 2002 for (i = 0; i < RTAX_MAX; i++) { 2003 if ((1 << i) & addrs) { 2004 sa[i] = (struct sockaddr *)cp; 2005 if ((i == RTAX_DST || i == RTAX_IFA) && 2006 nmf == -1) 2007 nmf = sa[i]->sa_family; 2008 ADVANCE(cp, sa[i]); 2009 } else 2010 sa[i] = NULL; 2011 } 2012 for (i = 0; i < RTAX_MAX; i++) { 2013 if (sa[i] != NULL) { 2014 if (i == RTAX_NETMASK && sa[i]->sa_len) 2015 (void)printf(" %s", 2016 netmask_string(sa[i], -1, nmf)); 2017 else 2018 (void)printf(" %s", 2019 routename(sa[i], NULL, RTF_HOST)); 2020 } 2021 } 2022 } 2023 (void)putchar('\n'); 2024 (void)fflush(stdout); 2025 } 2026 2027 static void 2028 bprintf(FILE *fp, int b, const char *f) 2029 { 2030 int i; 2031 int gotsome = 0; 2032 const uint8_t *s = (const uint8_t *)f; 2033 2034 if (b == 0) 2035 return; 2036 while ((i = *s++) != 0) { 2037 if (b & (1 << (i-1))) { 2038 if (gotsome == 0) 2039 i = '<'; 2040 else 2041 i = ','; 2042 (void)putc(i, fp); 2043 gotsome = 1; 2044 for (; (i = *s) > 32; s++) 2045 (void)putc(i, fp); 2046 } else 2047 while (*s > 32) 2048 s++; 2049 } 2050 if (gotsome) 2051 (void)putc('>', fp); 2052 } 2053 2054 int 2055 keyword(char *cp) 2056 { 2057 struct keytab *kt = keywords; 2058 2059 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 2060 kt++; 2061 return kt->kt_i; 2062 } 2063 2064 static void 2065 sodump(sup su, const char *which) 2066 { 2067 #ifdef INET6 2068 char ntop_buf[NI_MAXHOST]; 2069 #endif 2070 2071 switch (su->sa.sa_family) { 2072 case AF_INET: 2073 (void)printf("%s: inet %s; ", 2074 which, inet_ntoa(su->sin.sin_addr)); 2075 break; 2076 #ifndef SMALL 2077 case AF_APPLETALK: 2078 (void)printf("%s: atalk %d.%d; ", 2079 which, su->sat.sat_addr.s_net, su->sat.sat_addr.s_node); 2080 break; 2081 #endif 2082 case AF_LINK: 2083 (void)printf("%s: link %s; ", 2084 which, link_ntoa(&su->sdl)); 2085 break; 2086 #ifdef INET6 2087 case AF_INET6: 2088 (void)printf("%s: inet6 %s; ", 2089 which, inet_ntop(AF_INET6, &su->sin6.sin6_addr, 2090 ntop_buf, sizeof(ntop_buf))); 2091 break; 2092 #endif 2093 #ifndef SMALL 2094 case AF_ISO: 2095 (void)printf("%s: iso %s; ", 2096 which, iso_ntoa(&su->siso.siso_addr)); 2097 break; 2098 case AF_NS: 2099 (void)printf("%s: xns %s; ", 2100 which, ns_ntoa(su->sns.sns_addr)); 2101 break; 2102 #endif /* SMALL */ 2103 default: 2104 (void)printf("%s: (%d) %s; ", 2105 which, su->sa.sa_family, any_ntoa(&su->sa)); 2106 } 2107 (void)fflush(stdout); 2108 } 2109 2110 /* States*/ 2111 #define VIRGIN 0 2112 #define GOTONE 1 2113 #define GOTTWO 2 2114 /* Inputs */ 2115 #define DIGIT (4*0) 2116 #define END (4*1) 2117 #define DELIM (4*2) 2118 2119 static void 2120 sockaddr(char *addr, struct sockaddr *sa) 2121 { 2122 char *cp = (char *)sa; 2123 int size = sa->sa_len; 2124 char *cplim = cp + size; 2125 int byte = 0, state = VIRGIN, new = 0; 2126 2127 (void)memset(cp, 0, size); 2128 cp++; 2129 do { 2130 if ((*addr >= '0') && (*addr <= '9')) { 2131 new = *addr - '0'; 2132 } else if ((*addr >= 'a') && (*addr <= 'f')) { 2133 new = *addr - 'a' + 10; 2134 } else if ((*addr >= 'A') && (*addr <= 'F')) { 2135 new = *addr - 'A' + 10; 2136 } else if (*addr == 0) 2137 state |= END; 2138 else 2139 state |= DELIM; 2140 addr++; 2141 switch (state /* | INPUT */) { 2142 case GOTTWO | DIGIT: 2143 *cp++ = byte; /*FALLTHROUGH*/ 2144 case VIRGIN | DIGIT: 2145 state = GOTONE; byte = new; continue; 2146 case GOTONE | DIGIT: 2147 state = GOTTWO; byte = new + (byte << 4); continue; 2148 default: /* | DELIM */ 2149 state = VIRGIN; *cp++ = byte; byte = 0; continue; 2150 case GOTONE | END: 2151 case GOTTWO | END: 2152 *cp++ = byte; /* FALLTHROUGH */ 2153 case VIRGIN | END: 2154 break; 2155 } 2156 break; 2157 } while (cp < cplim); 2158 sa->sa_len = cp - (char *)sa; 2159 } 2160
Indexes created Sun Sep 28 16:09:52 GMT 2025