route.c revision 1.16
1 /* $NetBSD: route.c,v 1.16 1996/04/15 18:27:05 cgd 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 1.16 1996/04/15 18:27:05 cgd 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 <netns/ns.h> 62 #include <netiso/iso.h> 63 #include <netccitt/x25.h> 64 #include <arpa/inet.h> 65 #include <netdb.h> 66 67 #include <errno.h> 68 #include <unistd.h> 69 #include <stdio.h> 70 #include <ctype.h> 71 #include <stdlib.h> 72 #include <string.h> 73 #include <paths.h> 74 75 struct keytab { 76 char *kt_cp; 77 int kt_i; 78 } keywords[] = { 79 #include "keywords.h" 80 {0, 0} 81 }; 82 83 struct ortentry route; 84 union sockunion { 85 struct sockaddr sa; 86 struct sockaddr_in sin; 87 struct sockaddr_ns sns; 88 struct sockaddr_iso siso; 89 struct sockaddr_dl sdl; 90 struct sockaddr_x25 sx25; 91 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 92 93 typedef union sockunion *sup; 94 int pid, rtm_addrs, uid; 95 int s; 96 int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword(); 97 int iflag, verbose, aflen = sizeof (struct sockaddr_in); 98 int locking, lockrest, debugonly; 99 struct rt_metrics rt_metrics; 100 u_long rtm_inits; 101 struct in_addr inet_makeaddr(); 102 char *routename(), *netname(); 103 void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf(); 104 void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr(); 105 int getaddr(), rtmsg(), x25_makemask(); 106 extern char *inet_ntoa(), *iso_ntoa(), *link_ntoa(); 107 108 __dead void 109 usage(cp) 110 char *cp; 111 { 112 if (cp) 113 (void) fprintf(stderr, "route: botched keyword: %s\n", cp); 114 (void) fprintf(stderr, 115 "usage: route [ -nqv ] cmd [[ -<qualifers> ] args ]\n"); 116 exit(1); 117 /* NOTREACHED */ 118 } 119 120 void 121 quit(s) 122 char *s; 123 { 124 int sverrno = errno; 125 126 (void) fprintf(stderr, "route: "); 127 if (s) 128 (void) fprintf(stderr, "%s: ", s); 129 (void) fprintf(stderr, "%s\n", strerror(sverrno)); 130 exit(1); 131 /* NOTREACHED */ 132 } 133 134 #define ROUNDUP(a) \ 135 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 136 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 137 138 int 139 main(argc, argv) 140 int argc; 141 char **argv; 142 { 143 extern int optind; 144 int ch; 145 146 if (argc < 2) 147 usage((char *)NULL); 148 149 while ((ch = getopt(argc, argv, "nqdtv")) != EOF) 150 switch(ch) { 151 case 'n': 152 nflag = 1; 153 break; 154 case 'q': 155 qflag = 1; 156 break; 157 case 'v': 158 verbose = 1; 159 break; 160 case 't': 161 tflag = 1; 162 break; 163 case 'd': 164 debugonly = 1; 165 break; 166 case '?': 167 default: 168 usage((char *)NULL); 169 } 170 argc -= optind; 171 argv += optind; 172 173 pid = getpid(); 174 uid = getuid(); 175 if (tflag) 176 s = open("/dev/null", O_WRONLY, 0); 177 else 178 s = socket(PF_ROUTE, SOCK_RAW, 0); 179 if (s < 0) 180 quit("socket"); 181 if (*argv) 182 switch (keyword(*argv)) { 183 case K_GET: 184 uid = 0; 185 /* FALLTHROUGH */ 186 187 case K_CHANGE: 188 case K_ADD: 189 case K_DELETE: 190 newroute(argc, argv); 191 exit(0); 192 /* NOTREACHED */ 193 194 case K_MONITOR: 195 monitor(); 196 /* NOTREACHED */ 197 198 case K_FLUSH: 199 flushroutes(argc, argv); 200 exit(0); 201 /* NOTREACHED */ 202 } 203 usage(*argv); 204 /* NOTREACHED */ 205 } 206 207 /* 208 * Purge all entries in the routing tables not 209 * associated with network interfaces. 210 */ 211 void 212 flushroutes(argc, argv) 213 int argc; 214 char *argv[]; 215 { 216 size_t needed; 217 int mib[6], rlen, seqno; 218 char *buf, *next, *lim; 219 register struct rt_msghdr *rtm; 220 221 if (uid) { 222 errno = EACCES; 223 quit("must be root to alter routing table"); 224 } 225 shutdown(s, 0); /* Don't want to read back our messages */ 226 if (argc > 1) { 227 argv++; 228 if (argc == 2 && **argv == '-') 229 switch (keyword(*argv + 1)) { 230 case K_INET: 231 af = AF_INET; 232 break; 233 case K_XNS: 234 af = AF_NS; 235 break; 236 case K_LINK: 237 af = AF_LINK; 238 break; 239 case K_ISO: 240 case K_OSI: 241 af = AF_ISO; 242 break; 243 case K_X25: 244 af = AF_CCITT; 245 default: 246 goto bad; 247 } else 248 bad: usage(*argv); 249 } 250 mib[0] = CTL_NET; 251 mib[1] = PF_ROUTE; 252 mib[2] = 0; /* protocol */ 253 mib[3] = 0; /* wildcard address family */ 254 mib[4] = NET_RT_DUMP; 255 mib[5] = 0; /* no flags */ 256 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 257 quit("route-sysctl-estimate"); 258 if ((buf = malloc(needed)) == NULL) 259 quit("malloc"); 260 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 261 quit("actual retrieval of routing table"); 262 lim = buf + needed; 263 if (verbose) 264 (void) printf("Examining routing table from sysctl\n"); 265 seqno = 0; /* ??? */ 266 for (next = buf; next < lim; next += rtm->rtm_msglen) { 267 rtm = (struct rt_msghdr *)next; 268 if (verbose) 269 print_rtmsg(rtm, rtm->rtm_msglen); 270 if ((rtm->rtm_flags & RTF_GATEWAY) == 0) 271 continue; 272 if (af) { 273 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 274 275 if (sa->sa_family != af) 276 continue; 277 } 278 if (debugonly) 279 continue; 280 rtm->rtm_type = RTM_DELETE; 281 rtm->rtm_seq = seqno; 282 rlen = write(s, next, rtm->rtm_msglen); 283 if (rlen < (int)rtm->rtm_msglen) { 284 (void) fprintf(stderr, 285 "route: write to routing socket: %s\n", 286 strerror(errno)); 287 (void) printf("got only %d for rlen\n", rlen); 288 break; 289 } 290 seqno++; 291 if (qflag) 292 continue; 293 if (verbose) 294 print_rtmsg(rtm, rlen); 295 else { 296 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 297 (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ? 298 routename(sa) : netname(sa)); 299 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 300 (void) printf("%-20.20s ", routename(sa)); 301 (void) printf("done\n"); 302 } 303 } 304 } 305 306 char * 307 routename(sa) 308 struct sockaddr *sa; 309 { 310 register char *cp; 311 static char line[50]; 312 struct hostent *hp; 313 static char domain[MAXHOSTNAMELEN + 1]; 314 static int first = 1; 315 char *ns_print(); 316 317 if (first) { 318 first = 0; 319 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 320 (cp = strchr(domain, '.'))) 321 (void) strcpy(domain, cp + 1); 322 else 323 domain[0] = 0; 324 } 325 326 if (sa->sa_len == 0) 327 strcpy(line, "default"); 328 else switch (sa->sa_family) { 329 330 case AF_INET: 331 { struct in_addr in; 332 in = ((struct sockaddr_in *)sa)->sin_addr; 333 334 cp = 0; 335 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) 336 cp = "default"; 337 if (cp == 0 && !nflag) { 338 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 339 AF_INET); 340 if (hp) { 341 if ((cp = strchr(hp->h_name, '.')) && 342 !strcmp(cp + 1, domain)) 343 *cp = 0; 344 cp = hp->h_name; 345 } 346 } 347 if (cp) 348 strcpy(line, cp); 349 else { 350 #define C(x) ((x) & 0xff) 351 in.s_addr = ntohl(in.s_addr); 352 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 353 C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); 354 } 355 break; 356 } 357 358 case AF_NS: 359 return (ns_print((struct sockaddr_ns *)sa)); 360 361 case AF_LINK: 362 return (link_ntoa((struct sockaddr_dl *)sa)); 363 364 case AF_ISO: 365 (void) sprintf(line, "iso %s", 366 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 367 break; 368 369 default: 370 { u_short *s = (u_short *)sa; 371 u_short *slim = s + ((sa->sa_len + 1) >> 1); 372 char *cp = line + sprintf(line, "(%d)", sa->sa_family); 373 374 while (++s < slim) /* start with sa->sa_data */ 375 cp += sprintf(cp, " %x", *s); 376 break; 377 } 378 } 379 return (line); 380 } 381 382 /* 383 * Return the name of the network whose address is given. 384 * The address is assumed to be that of a net or subnet, not a host. 385 */ 386 char * 387 netname(sa) 388 struct sockaddr *sa; 389 { 390 char *cp = 0; 391 static char line[50]; 392 struct netent *np = 0; 393 u_long net, mask; 394 register u_long i; 395 int subnetshift; 396 char *ns_print(); 397 398 switch (sa->sa_family) { 399 400 case AF_INET: 401 { struct in_addr in; 402 in = ((struct sockaddr_in *)sa)->sin_addr; 403 404 i = in.s_addr = ntohl(in.s_addr); 405 if (in.s_addr == 0) 406 cp = "default"; 407 else if (!nflag) { 408 if (IN_CLASSA(i)) { 409 mask = IN_CLASSA_NET; 410 subnetshift = 8; 411 } else if (IN_CLASSB(i)) { 412 mask = IN_CLASSB_NET; 413 subnetshift = 8; 414 } else { 415 mask = IN_CLASSC_NET; 416 subnetshift = 4; 417 } 418 /* 419 * If there are more bits than the standard mask 420 * would suggest, subnets must be in use. 421 * Guess at the subnet mask, assuming reasonable 422 * width subnet fields. 423 */ 424 while (in.s_addr &~ mask) 425 mask = (long)mask >> subnetshift; 426 net = in.s_addr & mask; 427 while ((mask & 1) == 0) 428 mask >>= 1, net >>= 1; 429 np = getnetbyaddr(net, AF_INET); 430 if (np) 431 cp = np->n_name; 432 } 433 if (cp) 434 strcpy(line, cp); 435 else if ((in.s_addr & 0xffffff) == 0) 436 (void) sprintf(line, "%u", C(in.s_addr >> 24)); 437 else if ((in.s_addr & 0xffff) == 0) 438 (void) sprintf(line, "%u.%u", C(in.s_addr >> 24), 439 C(in.s_addr >> 16)); 440 else if ((in.s_addr & 0xff) == 0) 441 (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24), 442 C(in.s_addr >> 16), C(in.s_addr >> 8)); 443 else 444 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 445 C(in.s_addr >> 16), C(in.s_addr >> 8), 446 C(in.s_addr)); 447 break; 448 } 449 450 case AF_NS: 451 return (ns_print((struct sockaddr_ns *)sa)); 452 453 case AF_LINK: 454 return (link_ntoa((struct sockaddr_dl *)sa)); 455 456 case AF_ISO: 457 (void) sprintf(line, "iso %s", 458 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 459 break; 460 461 default: 462 { u_short *s = (u_short *)sa->sa_data; 463 u_short *slim = s + ((sa->sa_len + 1)>>1); 464 char *cp = line + sprintf(line, "af %d:", sa->sa_family); 465 466 while (s < slim) 467 cp += sprintf(cp, " %x", *s++); 468 break; 469 } 470 } 471 return (line); 472 } 473 474 void 475 set_metric(value, key) 476 char *value; 477 int key; 478 { 479 int flag = 0; 480 u_long noval, *valp = &noval; 481 482 switch (key) { 483 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 484 caseof(K_MTU, RTV_MTU, rmx_mtu); 485 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 486 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 487 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 488 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 489 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 490 caseof(K_RTT, RTV_RTT, rmx_rtt); 491 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 492 } 493 rtm_inits |= flag; 494 if (lockrest || locking) 495 rt_metrics.rmx_locks |= flag; 496 if (locking) 497 locking = 0; 498 *valp = atoi(value); 499 } 500 501 void 502 newroute(argc, argv) 503 int argc; 504 register char **argv; 505 { 506 char *cmd, *dest = "", *gateway = "", *err; 507 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 508 int key; 509 struct hostent *hp = 0; 510 511 if (uid) { 512 errno = EACCES; 513 quit("must be root to alter routing table"); 514 } 515 cmd = argv[0]; 516 if (*cmd != 'g') 517 shutdown(s, 0); /* Don't want to read back our messages */ 518 while (--argc > 0) { 519 if (**(++argv)== '-') { 520 switch (key = keyword(1 + *argv)) { 521 case K_LINK: 522 af = AF_LINK; 523 aflen = sizeof(struct sockaddr_dl); 524 break; 525 case K_OSI: 526 case K_ISO: 527 af = AF_ISO; 528 aflen = sizeof(struct sockaddr_iso); 529 break; 530 case K_INET: 531 af = AF_INET; 532 aflen = sizeof(struct sockaddr_in); 533 break; 534 case K_X25: 535 af = AF_CCITT; 536 aflen = sizeof(struct sockaddr_x25); 537 break; 538 case K_SA: 539 af = PF_ROUTE; 540 aflen = sizeof(union sockunion); 541 break; 542 case K_XNS: 543 af = AF_NS; 544 aflen = sizeof(struct sockaddr_ns); 545 break; 546 case K_IFACE: 547 case K_INTERFACE: 548 iflag++; 549 break; 550 case K_NOSTATIC: 551 flags &= ~RTF_STATIC; 552 break; 553 case K_LLINFO: 554 flags |= RTF_LLINFO; 555 break; 556 case K_LOCK: 557 locking = 1; 558 break; 559 case K_LOCKREST: 560 lockrest = 1; 561 break; 562 case K_HOST: 563 forcehost++; 564 break; 565 case K_REJECT: 566 flags |= RTF_REJECT; 567 break; 568 case K_BLACKHOLE: 569 flags |= RTF_BLACKHOLE; 570 break; 571 case K_PROTO1: 572 flags |= RTF_PROTO1; 573 break; 574 case K_PROTO2: 575 flags |= RTF_PROTO2; 576 break; 577 case K_CLONING: 578 flags |= RTF_CLONING; 579 break; 580 case K_XRESOLVE: 581 flags |= RTF_XRESOLVE; 582 break; 583 case K_STATIC: 584 flags |= RTF_STATIC; 585 break; 586 case K_IFA: 587 argc--; 588 (void) getaddr(RTA_IFA, *++argv, 0); 589 break; 590 case K_IFP: 591 argc--; 592 (void) getaddr(RTA_IFP, *++argv, 0); 593 break; 594 case K_GENMASK: 595 argc--; 596 (void) getaddr(RTA_GENMASK, *++argv, 0); 597 break; 598 case K_GATEWAY: 599 argc--; 600 (void) getaddr(RTA_GATEWAY, *++argv, 0); 601 break; 602 case K_DST: 603 argc--; 604 ishost = getaddr(RTA_DST, *++argv, &hp); 605 dest = *argv; 606 break; 607 case K_NETMASK: 608 argc--; 609 (void) getaddr(RTA_NETMASK, *++argv, 0); 610 /* FALLTHROUGH */ 611 case K_NET: 612 forcenet++; 613 break; 614 case K_MTU: 615 case K_HOPCOUNT: 616 case K_EXPIRE: 617 case K_RECVPIPE: 618 case K_SENDPIPE: 619 case K_SSTHRESH: 620 case K_RTT: 621 case K_RTTVAR: 622 argc--; 623 set_metric(*++argv, key); 624 break; 625 default: 626 usage(1+*argv); 627 } 628 } else { 629 if ((rtm_addrs & RTA_DST) == 0) { 630 dest = *argv; 631 ishost = getaddr(RTA_DST, *argv, &hp); 632 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 633 gateway = *argv; 634 (void) getaddr(RTA_GATEWAY, *argv, &hp); 635 } else { 636 int ret = atoi(*argv); 637 638 if (ret == 0) { 639 if (!qflag && strcmp(*argv, "0") == 0) 640 printf("%s,%s", 641 "old usage of trailing 0", 642 "assuming route to if\n"); 643 else 644 usage((char *)NULL); 645 iflag = 1; 646 continue; 647 } else if (ret > 0 && ret < 10) { 648 if (!qflag) { 649 printf("old usage of trailing digit, "); 650 printf("assuming route via gateway\n"); 651 } 652 iflag = 0; 653 continue; 654 } 655 (void) getaddr(RTA_NETMASK, *argv, 0); 656 } 657 } 658 } 659 if (forcehost) 660 ishost = 1; 661 if (forcenet) 662 ishost = 0; 663 flags |= RTF_UP; 664 if (ishost) 665 flags |= RTF_HOST; 666 if (iflag == 0) 667 flags |= RTF_GATEWAY; 668 for (attempts = 1; ; attempts++) { 669 errno = 0; 670 if ((ret = rtmsg(*cmd, flags)) == 0) 671 break; 672 if (errno != ENETUNREACH && errno != ESRCH) 673 break; 674 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 675 hp->h_addr_list++; 676 memcpy(&so_gate.sin.sin_addr, hp->h_addr_list[0], 677 hp->h_length); 678 } else 679 break; 680 } 681 if (*cmd == 'g') 682 exit(0); 683 oerrno = errno; 684 if (!qflag) { 685 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); 686 if (*gateway) { 687 (void) printf(": gateway %s", gateway); 688 if (attempts > 1 && ret == 0 && af == AF_INET) 689 (void) printf(" (%s)", 690 inet_ntoa(((struct sockaddr_in *) 691 &route.rt_gateway)->sin_addr)); 692 } 693 if (ret == 0) 694 (void) printf("\n"); 695 } 696 if (ret != 0) { 697 switch (oerrno) { 698 case ESRCH: 699 err = "not in table"; 700 break; 701 case EBUSY: 702 err = "entry in use"; 703 break; 704 case ENOBUFS: 705 err = "routing table overflow"; 706 break; 707 default: 708 err = strerror(oerrno); 709 break; 710 } 711 (void) printf(": %s\n", err); 712 } 713 } 714 715 void 716 inet_makenetandmask(net, sin) 717 u_long net; 718 register struct sockaddr_in *sin; 719 { 720 u_long addr, mask = 0; 721 register char *cp; 722 723 rtm_addrs |= RTA_NETMASK; 724 if (net == 0) 725 mask = addr = 0; 726 else if (net < 128) { 727 addr = net << IN_CLASSA_NSHIFT; 728 mask = IN_CLASSA_NET; 729 } else if (net < 65536) { 730 addr = net << IN_CLASSB_NSHIFT; 731 mask = IN_CLASSB_NET; 732 } else if (net < 16777216L) { 733 addr = net << IN_CLASSC_NSHIFT; 734 mask = IN_CLASSC_NET; 735 } else { 736 addr = net; 737 if ((addr & IN_CLASSA_HOST) == 0) 738 mask = IN_CLASSA_NET; 739 else if ((addr & IN_CLASSB_HOST) == 0) 740 mask = IN_CLASSB_NET; 741 else if ((addr & IN_CLASSC_HOST) == 0) 742 mask = IN_CLASSC_NET; 743 else 744 mask = -1; 745 } 746 sin->sin_addr.s_addr = htonl(addr); 747 sin = &so_mask.sin; 748 sin->sin_addr.s_addr = htonl(mask); 749 sin->sin_len = 0; 750 sin->sin_family = 0; 751 cp = (char *)(&sin->sin_addr + 1); 752 while (*--cp == 0 && cp > (char *)sin) 753 ; 754 sin->sin_len = 1 + cp - (char *)sin; 755 } 756 757 /* 758 * Interpret an argument as a network address of some kind, 759 * returning 1 if a host address, 0 if a network address. 760 */ 761 int 762 getaddr(which, s, hpp) 763 int which; 764 char *s; 765 struct hostent **hpp; 766 { 767 register sup su; 768 struct ns_addr ns_addr(); 769 struct iso_addr *iso_addr(); 770 struct hostent *hp; 771 struct netent *np; 772 u_long val; 773 774 if (af == 0) { 775 af = AF_INET; 776 aflen = sizeof(struct sockaddr_in); 777 } 778 rtm_addrs |= which; 779 switch (which) { 780 case RTA_DST: 781 su = &so_dst; 782 su->sa.sa_family = af; 783 break; 784 case RTA_GATEWAY: 785 su = &so_gate; 786 su->sa.sa_family = af; 787 break; 788 case RTA_NETMASK: 789 su = &so_mask; 790 break; 791 case RTA_GENMASK: 792 su = &so_genmask; 793 break; 794 case RTA_IFP: 795 su = &so_ifp; 796 su->sa.sa_family = af; 797 break; 798 case RTA_IFA: 799 su = &so_ifa; 800 su->sa.sa_family = af; 801 break; 802 default: 803 usage("Internal Error"); 804 /*NOTREACHED*/ 805 } 806 su->sa.sa_len = aflen; 807 if (strcmp(s, "default") == 0) { 808 switch (which) { 809 case RTA_DST: 810 forcenet++; 811 (void) getaddr(RTA_NETMASK, s, 0); 812 break; 813 case RTA_NETMASK: 814 case RTA_GENMASK: 815 su->sa.sa_len = 0; 816 } 817 return (0); 818 } 819 switch (af) { 820 case AF_NS: 821 if (which == RTA_DST) { 822 extern short ns_bh[3]; 823 struct sockaddr_ns *sms = &(so_mask.sns); 824 memset(sms, 0, sizeof(*sms)); 825 sms->sns_family = 0; 826 sms->sns_len = 6; 827 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 828 rtm_addrs |= RTA_NETMASK; 829 } 830 su->sns.sns_addr = ns_addr(s); 831 return (!ns_nullhost(su->sns.sns_addr)); 832 833 case AF_OSI: 834 su->siso.siso_addr = *iso_addr(s); 835 if (which == RTA_NETMASK || which == RTA_GENMASK) { 836 register char *cp = (char *)TSEL(&su->siso); 837 su->siso.siso_nlen = 0; 838 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 839 su->siso.siso_len = 1 + cp - (char *)su; 840 } 841 return (1); 842 843 case AF_LINK: 844 link_addr(s, &su->sdl); 845 return (1); 846 847 case AF_CCITT: 848 ccitt_addr(s, &su->sx25); 849 return (which == RTA_DST ? x25_makemask() : 1); 850 851 case PF_ROUTE: 852 su->sa.sa_len = sizeof(*su); 853 sockaddr(s, &su->sa); 854 return (1); 855 856 case AF_INET: 857 default: 858 break; 859 } 860 861 if (hpp == NULL) 862 hpp = &hp; 863 *hpp = NULL; 864 if (((val = inet_addr(s)) != INADDR_NONE) && 865 (which != RTA_DST || forcenet == 0)) { 866 su->sin.sin_addr.s_addr = val; 867 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 868 return (1); 869 else { 870 val = ntohl(val); 871 goto netdone; 872 } 873 } 874 if ((val = inet_network(s)) != INADDR_NONE || 875 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 876 netdone: 877 if (which == RTA_DST) 878 inet_makenetandmask(val, &su->sin); 879 return (0); 880 } 881 hp = gethostbyname(s); 882 if (hp) { 883 *hpp = hp; 884 su->sin.sin_family = hp->h_addrtype; 885 memcpy(&su->sin.sin_addr, hp->h_addr, hp->h_length); 886 return (1); 887 } 888 (void) fprintf(stderr, "%s: bad value\n", s); 889 exit(1); 890 } 891 892 int 893 x25_makemask() 894 { 895 register char *cp; 896 897 if ((rtm_addrs & RTA_NETMASK) == 0) { 898 rtm_addrs |= RTA_NETMASK; 899 for (cp = (char *)&so_mask.sx25.x25_net; 900 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 901 *cp = -1; 902 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 903 } 904 return 0; 905 } 906 907 short ns_nullh[] = {0,0,0}; 908 short ns_bh[] = {-1,-1,-1}; 909 910 char * 911 ns_print(sns) 912 struct sockaddr_ns *sns; 913 { 914 struct ns_addr work; 915 union { union ns_net net_e; u_long long_e; } net; 916 u_short port; 917 static char mybuf[50], cport[10], chost[25]; 918 char *host = ""; 919 register char *p; 920 register u_char *q; 921 922 work = sns->sns_addr; 923 port = ntohs(work.x_port); 924 work.x_port = 0; 925 net.net_e = work.x_net; 926 if (ns_nullhost(work) && net.long_e == 0) { 927 if (!port) 928 return ("*.*"); 929 (void) sprintf(mybuf, "*.%XH", port); 930 return (mybuf); 931 } 932 933 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0) 934 host = "any"; 935 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0) 936 host = "*"; 937 else { 938 q = work.x_host.c_host; 939 (void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH", 940 q[0], q[1], q[2], q[3], q[4], q[5]); 941 for (p = chost; *p == '0' && p < chost + 12; p++) 942 /* void */; 943 host = p; 944 } 945 if (port) 946 (void) sprintf(cport, ".%XH", htons(port)); 947 else 948 *cport = 0; 949 950 (void) sprintf(mybuf,"%XH.%s%s", ntohl(net.long_e), host, cport); 951 return (mybuf); 952 } 953 954 void 955 interfaces() 956 { 957 size_t needed; 958 int mib[6]; 959 char *buf, *lim, *next; 960 register struct rt_msghdr *rtm; 961 962 mib[0] = CTL_NET; 963 mib[1] = PF_ROUTE; 964 mib[2] = 0; /* protocol */ 965 mib[3] = 0; /* wildcard address family */ 966 mib[4] = NET_RT_IFLIST; 967 mib[5] = 0; /* no flags */ 968 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 969 quit("route-sysctl-estimate"); 970 if ((buf = malloc(needed)) == NULL) 971 quit("malloc"); 972 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 973 quit("actual retrieval of interface table"); 974 lim = buf + needed; 975 for (next = buf; next < lim; next += rtm->rtm_msglen) { 976 rtm = (struct rt_msghdr *)next; 977 print_rtmsg(rtm, rtm->rtm_msglen); 978 } 979 } 980 981 void 982 monitor() 983 { 984 int n; 985 char msg[2048]; 986 987 verbose = 1; 988 if (debugonly) { 989 interfaces(); 990 exit(0); 991 } 992 for(;;) { 993 n = read(s, msg, 2048); 994 (void) printf("got message of size %d\n", n); 995 print_rtmsg((struct rt_msghdr *)msg, n); 996 } 997 } 998 999 struct { 1000 struct rt_msghdr m_rtm; 1001 char m_space[512]; 1002 } m_rtmsg; 1003 1004 int 1005 rtmsg(cmd, flags) 1006 int cmd, flags; 1007 { 1008 static int seq; 1009 int rlen; 1010 register char *cp = m_rtmsg.m_space; 1011 register int l; 1012 1013 #define NEXTADDR(w, u) \ 1014 if (rtm_addrs & (w)) {\ 1015 l = ROUNDUP(u.sa.sa_len); memcpy(cp, &(u), l); cp += l;\ 1016 if (verbose) sodump(&(u),"u");\ 1017 } 1018 1019 errno = 0; 1020 memset(&m_rtmsg, 0, sizeof(m_rtmsg)); 1021 if (cmd == 'a') 1022 cmd = RTM_ADD; 1023 else if (cmd == 'c') 1024 cmd = RTM_CHANGE; 1025 else if (cmd == 'g') { 1026 cmd = RTM_GET; 1027 if (so_ifp.sa.sa_family == 0) { 1028 so_ifp.sa.sa_family = AF_LINK; 1029 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1030 rtm_addrs |= RTA_IFP; 1031 } 1032 } else 1033 cmd = RTM_DELETE; 1034 #define rtm m_rtmsg.m_rtm 1035 rtm.rtm_type = cmd; 1036 rtm.rtm_flags = flags; 1037 rtm.rtm_version = RTM_VERSION; 1038 rtm.rtm_seq = ++seq; 1039 rtm.rtm_addrs = rtm_addrs; 1040 rtm.rtm_rmx = rt_metrics; 1041 rtm.rtm_inits = rtm_inits; 1042 1043 if (rtm_addrs & RTA_NETMASK) 1044 mask_addr(); 1045 NEXTADDR(RTA_DST, so_dst); 1046 NEXTADDR(RTA_GATEWAY, so_gate); 1047 NEXTADDR(RTA_NETMASK, so_mask); 1048 NEXTADDR(RTA_GENMASK, so_genmask); 1049 NEXTADDR(RTA_IFP, so_ifp); 1050 NEXTADDR(RTA_IFA, so_ifa); 1051 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1052 if (verbose) 1053 print_rtmsg(&rtm, l); 1054 if (debugonly) 1055 return (0); 1056 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { 1057 perror("writing to routing socket"); 1058 return (-1); 1059 } 1060 if (cmd == RTM_GET) { 1061 do { 1062 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1063 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1064 if (l < 0) 1065 (void) fprintf(stderr, 1066 "route: read from routing socket: %s\n", 1067 strerror(errno)); 1068 else 1069 print_getmsg(&rtm, l); 1070 } 1071 #undef rtm 1072 return (0); 1073 } 1074 1075 void 1076 mask_addr() 1077 { 1078 int olen = so_mask.sa.sa_len; 1079 register char *cp1 = olen + (char *)&so_mask, *cp2; 1080 1081 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1082 if (*--cp1 != 0) { 1083 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1084 break; 1085 } 1086 if ((rtm_addrs & RTA_DST) == 0) 1087 return; 1088 switch (so_dst.sa.sa_family) { 1089 case AF_NS: 1090 case AF_INET: 1091 case AF_CCITT: 1092 case 0: 1093 return; 1094 case AF_ISO: 1095 olen = MIN(so_dst.siso.siso_nlen, 1096 MAX(so_mask.sa.sa_len - 6, 0)); 1097 break; 1098 } 1099 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1100 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1101 while (cp2 > cp1) 1102 *--cp2 = 0; 1103 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1104 while (cp1 > so_dst.sa.sa_data) 1105 *--cp1 &= *--cp2; 1106 switch (so_dst.sa.sa_family) { 1107 case AF_ISO: 1108 so_dst.siso.siso_nlen = olen; 1109 break; 1110 } 1111 } 1112 1113 char *msgtypes[] = { 1114 "", 1115 "RTM_ADD: Add Route", 1116 "RTM_DELETE: Delete Route", 1117 "RTM_CHANGE: Change Metrics or flags", 1118 "RTM_GET: Report Metrics", 1119 "RTM_LOSING: Kernel Suspects Partitioning", 1120 "RTM_REDIRECT: Told to use different route", 1121 "RTM_MISS: Lookup failed on this address", 1122 "RTM_LOCK: fix specified metrics", 1123 "RTM_OLDADD: caused by SIOCADDRT", 1124 "RTM_OLDDEL: caused by SIOCDELRT", 1125 "RTM_RESOLVE: Route created by cloning", 1126 "RTM_NEWADDR: address being added to iface", 1127 "RTM_DELADDR: address being removed from iface", 1128 "RTM_IFINFO: iface status change", 1129 0, 1130 }; 1131 1132 char metricnames[] = 1133 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount\1mtu"; 1134 char routeflags[] = 1135 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT\011CLONING\012XRESOLVE\013LLINFO\014STATIC\017PROTO2\020PROTO1"; 1136 char ifnetflags[] = 1137 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6NOTRAILERS\7RUNNING\010NOARP\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1\017LINK2\020MULTICAST"; 1138 char addrnames[] = 1139 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1140 1141 void 1142 print_rtmsg(rtm, msglen) 1143 register struct rt_msghdr *rtm; 1144 int msglen; 1145 { 1146 struct if_msghdr *ifm; 1147 struct ifa_msghdr *ifam; 1148 1149 if (verbose == 0) 1150 return; 1151 if (rtm->rtm_version != RTM_VERSION) { 1152 (void) printf("routing message version %d not understood\n", 1153 rtm->rtm_version); 1154 return; 1155 } 1156 (void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen); 1157 switch (rtm->rtm_type) { 1158 case RTM_IFINFO: 1159 ifm = (struct if_msghdr *)rtm; 1160 (void) printf("if# %d, flags:", ifm->ifm_index); 1161 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1162 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1163 break; 1164 case RTM_NEWADDR: 1165 case RTM_DELADDR: 1166 ifam = (struct ifa_msghdr *)rtm; 1167 (void) printf("metric %d, flags:", ifam->ifam_metric); 1168 bprintf(stdout, ifam->ifam_flags, routeflags); 1169 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1170 break; 1171 default: 1172 (void) printf("pid: %d, seq %d, errno %d, flags:", 1173 rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1174 bprintf(stdout, rtm->rtm_flags, routeflags); 1175 pmsg_common(rtm); 1176 } 1177 } 1178 1179 void 1180 print_getmsg(rtm, msglen) 1181 register struct rt_msghdr *rtm; 1182 int msglen; 1183 { 1184 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; 1185 struct sockaddr_dl *ifp = NULL; 1186 register struct sockaddr *sa; 1187 register char *cp; 1188 register int i; 1189 1190 (void) printf(" route to: %s\n", routename(&so_dst)); 1191 if (rtm->rtm_version != RTM_VERSION) { 1192 (void)fprintf(stderr, 1193 "routing message version %d not understood\n", 1194 rtm->rtm_version); 1195 return; 1196 } 1197 if (rtm->rtm_msglen > msglen) { 1198 (void)fprintf(stderr, 1199 "message length mismatch, in packet %d, returned %d\n", 1200 rtm->rtm_msglen, msglen); 1201 } 1202 if (rtm->rtm_errno) { 1203 (void) fprintf(stderr, "RTM_GET: %s (errno %d)\n", 1204 strerror(rtm->rtm_errno), rtm->rtm_errno); 1205 return; 1206 } 1207 cp = ((char *)(rtm + 1)); 1208 if (rtm->rtm_addrs) 1209 for (i = 1; i; i <<= 1) 1210 if (i & rtm->rtm_addrs) { 1211 sa = (struct sockaddr *)cp; 1212 switch (i) { 1213 case RTA_DST: 1214 dst = sa; 1215 break; 1216 case RTA_GATEWAY: 1217 gate = sa; 1218 break; 1219 case RTA_NETMASK: 1220 mask = sa; 1221 break; 1222 case RTA_IFP: 1223 if (sa->sa_family == AF_LINK && 1224 ((struct sockaddr_dl *)sa)->sdl_nlen) 1225 ifp = (struct sockaddr_dl *)sa; 1226 break; 1227 } 1228 ADVANCE(cp, sa); 1229 } 1230 if (dst && mask) 1231 mask->sa_family = dst->sa_family; /* XXX */ 1232 if (dst) 1233 (void)printf("destination: %s\n", routename(dst)); 1234 if (mask) { 1235 int savenflag = nflag; 1236 1237 nflag = 1; 1238 (void)printf(" mask: %s\n", routename(mask)); 1239 nflag = savenflag; 1240 } 1241 if (gate && rtm->rtm_flags & RTF_GATEWAY) 1242 (void)printf(" gateway: %s\n", routename(gate)); 1243 if (ifp) 1244 (void)printf(" interface: %.*s\n", 1245 ifp->sdl_nlen, ifp->sdl_data); 1246 (void)printf(" flags: "); 1247 bprintf(stdout, rtm->rtm_flags, routeflags); 1248 1249 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1250 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1251 1252 (void) printf("\n%s\n", "\ 1253 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1254 printf("%8d%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1255 printf("%8d%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1256 printf("%8d%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1257 printf("%8d%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1258 printf("%8d%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1259 printf("%8d%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1260 printf("%8d%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1261 if (rtm->rtm_rmx.rmx_expire) 1262 rtm->rtm_rmx.rmx_expire -= time(0); 1263 printf("%8d%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1264 #undef lock 1265 #undef msec 1266 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1267 if (verbose) 1268 pmsg_common(rtm); 1269 else if (rtm->rtm_addrs &~ RTA_IGN) { 1270 (void) printf("sockaddrs: "); 1271 bprintf(stdout, rtm->rtm_addrs, addrnames); 1272 putchar('\n'); 1273 } 1274 #undef RTA_IGN 1275 } 1276 1277 void 1278 pmsg_common(rtm) 1279 register struct rt_msghdr *rtm; 1280 { 1281 (void) printf("\nlocks: "); 1282 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1283 (void) printf(" inits: "); 1284 bprintf(stdout, rtm->rtm_inits, metricnames); 1285 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1286 } 1287 1288 void 1289 pmsg_addrs(cp, addrs) 1290 char *cp; 1291 int addrs; 1292 { 1293 register struct sockaddr *sa; 1294 int i; 1295 1296 if (addrs == 0) 1297 return; 1298 (void) printf("\nsockaddrs: "); 1299 bprintf(stdout, addrs, addrnames); 1300 (void) putchar('\n'); 1301 for (i = 1; i; i <<= 1) 1302 if (i & addrs) { 1303 sa = (struct sockaddr *)cp; 1304 (void) printf(" %s", routename(sa)); 1305 ADVANCE(cp, sa); 1306 } 1307 (void) putchar('\n'); 1308 (void) fflush(stdout); 1309 } 1310 1311 void 1312 bprintf(fp, b, s) 1313 register FILE *fp; 1314 register int b; 1315 register u_char *s; 1316 { 1317 register int i; 1318 int gotsome = 0; 1319 1320 if (b == 0) 1321 return; 1322 while (i = *s++) { 1323 if (b & (1 << (i-1))) { 1324 if (gotsome == 0) 1325 i = '<'; 1326 else 1327 i = ','; 1328 (void) putc(i, fp); 1329 gotsome = 1; 1330 for (; (i = *s) > 32; s++) 1331 (void) putc(i, fp); 1332 } else 1333 while (*s > 32) 1334 s++; 1335 } 1336 if (gotsome) 1337 (void) putc('>', fp); 1338 } 1339 1340 int 1341 keyword(cp) 1342 char *cp; 1343 { 1344 register struct keytab *kt = keywords; 1345 1346 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 1347 kt++; 1348 return kt->kt_i; 1349 } 1350 1351 void 1352 sodump(su, which) 1353 register sup su; 1354 char *which; 1355 { 1356 switch (su->sa.sa_family) { 1357 case AF_LINK: 1358 (void) printf("%s: link %s; ", 1359 which, link_ntoa(&su->sdl)); 1360 break; 1361 case AF_ISO: 1362 (void) printf("%s: iso %s; ", 1363 which, iso_ntoa(&su->siso.siso_addr)); 1364 break; 1365 case AF_INET: 1366 (void) printf("%s: inet %s; ", 1367 which, inet_ntoa(su->sin.sin_addr)); 1368 break; 1369 case AF_NS: 1370 (void) printf("%s: xns %s; ", 1371 which, ns_ntoa(su->sns.sns_addr)); 1372 break; 1373 } 1374 (void) fflush(stdout); 1375 } 1376 1377 /* States*/ 1378 #define VIRGIN 0 1379 #define GOTONE 1 1380 #define GOTTWO 2 1381 /* Inputs */ 1382 #define DIGIT (4*0) 1383 #define END (4*1) 1384 #define DELIM (4*2) 1385 1386 void 1387 sockaddr(addr, sa) 1388 register char *addr; 1389 register struct sockaddr *sa; 1390 { 1391 register char *cp = (char *)sa; 1392 int size = sa->sa_len; 1393 char *cplim = cp + size; 1394 register int byte = 0, state = VIRGIN, new; 1395 1396 memset(cp, 0, size); 1397 cp++; 1398 do { 1399 if ((*addr >= '0') && (*addr <= '9')) { 1400 new = *addr - '0'; 1401 } else if ((*addr >= 'a') && (*addr <= 'f')) { 1402 new = *addr - 'a' + 10; 1403 } else if ((*addr >= 'A') && (*addr <= 'F')) { 1404 new = *addr - 'A' + 10; 1405 } else if (*addr == 0) 1406 state |= END; 1407 else 1408 state |= DELIM; 1409 addr++; 1410 switch (state /* | INPUT */) { 1411 case GOTTWO | DIGIT: 1412 *cp++ = byte; /*FALLTHROUGH*/ 1413 case VIRGIN | DIGIT: 1414 state = GOTONE; byte = new; continue; 1415 case GOTONE | DIGIT: 1416 state = GOTTWO; byte = new + (byte << 4); continue; 1417 default: /* | DELIM */ 1418 state = VIRGIN; *cp++ = byte; byte = 0; continue; 1419 case GOTONE | END: 1420 case GOTTWO | END: 1421 *cp++ = byte; /* FALLTHROUGH */ 1422 case VIRGIN | END: 1423 break; 1424 } 1425 break; 1426 } while (cp < cplim); 1427 sa->sa_len = cp - (char *)sa; 1428 } 1429
Indexes created Sat Sep 27 22:09:54 GMT 2025