route.c revision 1.13
1 /* $NetBSD: route.c,v 1.13 1995/04/20 17:39:20 mycroft 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 1.13 1995/04/20 17:39:20 mycroft 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 case K_NOSTATIC: 550 flags &= ~RTF_STATIC; 551 break; 552 case K_LLINFO: 553 flags |= RTF_LLINFO; 554 break; 555 case K_LOCK: 556 locking = 1; 557 break; 558 case K_LOCKREST: 559 lockrest = 1; 560 break; 561 case K_HOST: 562 forcehost++; 563 break; 564 case K_REJECT: 565 flags |= RTF_REJECT; 566 break; 567 case K_BLACKHOLE: 568 flags |= RTF_BLACKHOLE; 569 break; 570 case K_PROTO1: 571 flags |= RTF_PROTO1; 572 break; 573 case K_PROTO2: 574 flags |= RTF_PROTO2; 575 break; 576 case K_CLONING: 577 flags |= RTF_CLONING; 578 break; 579 case K_XRESOLVE: 580 flags |= RTF_XRESOLVE; 581 break; 582 case K_STATIC: 583 flags |= RTF_STATIC; 584 break; 585 case K_IFA: 586 argc--; 587 (void) getaddr(RTA_IFA, *++argv, 0); 588 break; 589 case K_IFP: 590 argc--; 591 (void) getaddr(RTA_IFP, *++argv, 0); 592 break; 593 case K_GENMASK: 594 argc--; 595 (void) getaddr(RTA_GENMASK, *++argv, 0); 596 break; 597 case K_GATEWAY: 598 argc--; 599 (void) getaddr(RTA_GATEWAY, *++argv, 0); 600 break; 601 case K_DST: 602 argc--; 603 ishost = getaddr(RTA_DST, *++argv, &hp); 604 dest = *argv; 605 break; 606 case K_NETMASK: 607 argc--; 608 (void) getaddr(RTA_NETMASK, *++argv, 0); 609 /* FALLTHROUGH */ 610 case K_NET: 611 forcenet++; 612 break; 613 case K_MTU: 614 case K_HOPCOUNT: 615 case K_EXPIRE: 616 case K_RECVPIPE: 617 case K_SENDPIPE: 618 case K_SSTHRESH: 619 case K_RTT: 620 case K_RTTVAR: 621 argc--; 622 set_metric(*++argv, key); 623 break; 624 default: 625 usage(1+*argv); 626 } 627 } else { 628 if ((rtm_addrs & RTA_DST) == 0) { 629 dest = *argv; 630 ishost = getaddr(RTA_DST, *argv, &hp); 631 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 632 gateway = *argv; 633 (void) getaddr(RTA_GATEWAY, *argv, &hp); 634 } else { 635 int ret = atoi(*argv); 636 637 if (ret == 0) { 638 if (strcmp(*argv, "0") == 0) 639 printf("%s,%s", 640 "old usage of trailing 0", 641 "assuming route to if\n"); 642 else 643 usage((char *)NULL); 644 iflag = 1; 645 continue; 646 } else if (ret > 0 && ret < 10) { 647 printf("old usage of trailing digit, "); 648 printf("assuming route via gateway\n"); 649 iflag = 0; 650 continue; 651 } 652 (void) getaddr(RTA_NETMASK, *argv, 0); 653 } 654 } 655 } 656 if (forcehost) 657 ishost = 1; 658 if (forcenet) 659 ishost = 0; 660 flags |= RTF_UP; 661 if (ishost) 662 flags |= RTF_HOST; 663 if (iflag == 0) 664 flags |= RTF_GATEWAY; 665 for (attempts = 1; ; attempts++) { 666 errno = 0; 667 if ((ret = rtmsg(*cmd, flags)) == 0) 668 break; 669 if (errno != ENETUNREACH && errno != ESRCH) 670 break; 671 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 672 hp->h_addr_list++; 673 memcpy(&so_gate.sin.sin_addr, hp->h_addr_list[0], 674 hp->h_length); 675 } else 676 break; 677 } 678 if (*cmd == 'g') 679 exit(0); 680 oerrno = errno; 681 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); 682 if (*gateway) { 683 (void) printf(": gateway %s", gateway); 684 if (attempts > 1 && ret == 0 && af == AF_INET) 685 (void) printf(" (%s)", 686 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr)); 687 } 688 if (ret == 0) 689 (void) printf("\n"); 690 else { 691 switch (oerrno) { 692 case ESRCH: 693 err = "not in table"; 694 break; 695 case EBUSY: 696 err = "entry in use"; 697 break; 698 case ENOBUFS: 699 err = "routing table overflow"; 700 break; 701 default: 702 err = strerror(oerrno); 703 break; 704 } 705 (void) printf(": %s\n", err); 706 } 707 } 708 709 void 710 inet_makenetandmask(net, sin) 711 u_long net; 712 register struct sockaddr_in *sin; 713 { 714 u_long addr, mask = 0; 715 register char *cp; 716 717 rtm_addrs |= RTA_NETMASK; 718 if (net == 0) 719 mask = addr = 0; 720 else if (net < 128) { 721 addr = net << IN_CLASSA_NSHIFT; 722 mask = IN_CLASSA_NET; 723 } else if (net < 65536) { 724 addr = net << IN_CLASSB_NSHIFT; 725 mask = IN_CLASSB_NET; 726 } else if (net < 16777216L) { 727 addr = net << IN_CLASSC_NSHIFT; 728 mask = IN_CLASSC_NET; 729 } else { 730 addr = net; 731 if ((addr & IN_CLASSA_HOST) == 0) 732 mask = IN_CLASSA_NET; 733 else if ((addr & IN_CLASSB_HOST) == 0) 734 mask = IN_CLASSB_NET; 735 else if ((addr & IN_CLASSC_HOST) == 0) 736 mask = IN_CLASSC_NET; 737 else 738 mask = -1; 739 } 740 sin->sin_addr.s_addr = htonl(addr); 741 sin = &so_mask.sin; 742 sin->sin_addr.s_addr = htonl(mask); 743 sin->sin_len = 0; 744 sin->sin_family = 0; 745 cp = (char *)(&sin->sin_addr + 1); 746 while (*--cp == 0 && cp > (char *)sin) 747 ; 748 sin->sin_len = 1 + cp - (char *)sin; 749 } 750 751 /* 752 * Interpret an argument as a network address of some kind, 753 * returning 1 if a host address, 0 if a network address. 754 */ 755 int 756 getaddr(which, s, hpp) 757 int which; 758 char *s; 759 struct hostent **hpp; 760 { 761 register sup su; 762 struct ns_addr ns_addr(); 763 struct iso_addr *iso_addr(); 764 struct hostent *hp; 765 struct netent *np; 766 u_long val; 767 768 if (af == 0) { 769 af = AF_INET; 770 aflen = sizeof(struct sockaddr_in); 771 } 772 rtm_addrs |= which; 773 switch (which) { 774 case RTA_DST: 775 su = &so_dst; 776 su->sa.sa_family = af; 777 break; 778 case RTA_GATEWAY: 779 su = &so_gate; 780 su->sa.sa_family = af; 781 break; 782 case RTA_NETMASK: 783 su = &so_mask; 784 break; 785 case RTA_GENMASK: 786 su = &so_genmask; 787 break; 788 case RTA_IFP: 789 su = &so_ifp; 790 su->sa.sa_family = af; 791 break; 792 case RTA_IFA: 793 su = &so_ifa; 794 su->sa.sa_family = af; 795 break; 796 default: 797 usage("Internal Error"); 798 /*NOTREACHED*/ 799 } 800 su->sa.sa_len = aflen; 801 if (strcmp(s, "default") == 0) { 802 switch (which) { 803 case RTA_DST: 804 forcenet++; 805 (void) getaddr(RTA_NETMASK, s, 0); 806 break; 807 case RTA_NETMASK: 808 case RTA_GENMASK: 809 su->sa.sa_len = 0; 810 } 811 return (0); 812 } 813 switch (af) { 814 case AF_NS: 815 if (which == RTA_DST) { 816 extern short ns_bh[3]; 817 struct sockaddr_ns *sms = &(so_mask.sns); 818 memset(sms, 0, sizeof(*sms)); 819 sms->sns_family = 0; 820 sms->sns_len = 6; 821 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 822 rtm_addrs |= RTA_NETMASK; 823 } 824 su->sns.sns_addr = ns_addr(s); 825 return (!ns_nullhost(su->sns.sns_addr)); 826 827 case AF_OSI: 828 su->siso.siso_addr = *iso_addr(s); 829 if (which == RTA_NETMASK || which == RTA_GENMASK) { 830 register char *cp = (char *)TSEL(&su->siso); 831 su->siso.siso_nlen = 0; 832 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 833 su->siso.siso_len = 1 + cp - (char *)su; 834 } 835 return (1); 836 837 case AF_LINK: 838 link_addr(s, &su->sdl); 839 return (1); 840 841 case AF_CCITT: 842 ccitt_addr(s, &su->sx25); 843 return (which == RTA_DST ? x25_makemask() : 1); 844 845 case PF_ROUTE: 846 su->sa.sa_len = sizeof(*su); 847 sockaddr(s, &su->sa); 848 return (1); 849 850 case AF_INET: 851 default: 852 break; 853 } 854 855 if (hpp == NULL) 856 hpp = &hp; 857 *hpp = NULL; 858 if (((val = inet_addr(s)) != -1) && 859 (which != RTA_DST || forcenet == 0)) { 860 su->sin.sin_addr.s_addr = val; 861 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 862 return (1); 863 else { 864 val = ntohl(val); 865 goto netdone; 866 } 867 } 868 if ((val = inet_network(s)) != -1 || 869 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 870 netdone: 871 if (which == RTA_DST) 872 inet_makenetandmask(val, &su->sin); 873 return (0); 874 } 875 hp = gethostbyname(s); 876 if (hp) { 877 *hpp = hp; 878 su->sin.sin_family = hp->h_addrtype; 879 memcpy(&su->sin.sin_addr, hp->h_addr, hp->h_length); 880 return (1); 881 } 882 (void) fprintf(stderr, "%s: bad value\n", s); 883 exit(1); 884 } 885 886 int 887 x25_makemask() 888 { 889 register char *cp; 890 891 if ((rtm_addrs & RTA_NETMASK) == 0) { 892 rtm_addrs |= RTA_NETMASK; 893 for (cp = (char *)&so_mask.sx25.x25_net; 894 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 895 *cp = -1; 896 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 897 } 898 return 0; 899 } 900 901 short ns_nullh[] = {0,0,0}; 902 short ns_bh[] = {-1,-1,-1}; 903 904 char * 905 ns_print(sns) 906 struct sockaddr_ns *sns; 907 { 908 struct ns_addr work; 909 union { union ns_net net_e; u_long long_e; } net; 910 u_short port; 911 static char mybuf[50], cport[10], chost[25]; 912 char *host = ""; 913 register char *p; 914 register u_char *q; 915 916 work = sns->sns_addr; 917 port = ntohs(work.x_port); 918 work.x_port = 0; 919 net.net_e = work.x_net; 920 if (ns_nullhost(work) && net.long_e == 0) { 921 if (!port) 922 return ("*.*"); 923 (void) sprintf(mybuf, "*.%XH", port); 924 return (mybuf); 925 } 926 927 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0) 928 host = "any"; 929 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0) 930 host = "*"; 931 else { 932 q = work.x_host.c_host; 933 (void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH", 934 q[0], q[1], q[2], q[3], q[4], q[5]); 935 for (p = chost; *p == '0' && p < chost + 12; p++) 936 /* void */; 937 host = p; 938 } 939 if (port) 940 (void) sprintf(cport, ".%XH", htons(port)); 941 else 942 *cport = 0; 943 944 (void) sprintf(mybuf,"%XH.%s%s", ntohl(net.long_e), host, cport); 945 return (mybuf); 946 } 947 948 void 949 interfaces() 950 { 951 size_t needed; 952 int mib[6]; 953 char *buf, *lim, *next; 954 register struct rt_msghdr *rtm; 955 956 mib[0] = CTL_NET; 957 mib[1] = PF_ROUTE; 958 mib[2] = 0; /* protocol */ 959 mib[3] = 0; /* wildcard address family */ 960 mib[4] = NET_RT_IFLIST; 961 mib[5] = 0; /* no flags */ 962 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 963 quit("route-sysctl-estimate"); 964 if ((buf = malloc(needed)) == NULL) 965 quit("malloc"); 966 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 967 quit("actual retrieval of interface table"); 968 lim = buf + needed; 969 for (next = buf; next < lim; next += rtm->rtm_msglen) { 970 rtm = (struct rt_msghdr *)next; 971 print_rtmsg(rtm, rtm->rtm_msglen); 972 } 973 } 974 975 void 976 monitor() 977 { 978 int n; 979 char msg[2048]; 980 981 verbose = 1; 982 if (debugonly) { 983 interfaces(); 984 exit(0); 985 } 986 for(;;) { 987 n = read(s, msg, 2048); 988 (void) printf("got message of size %d\n", n); 989 print_rtmsg((struct rt_msghdr *)msg, n); 990 } 991 } 992 993 struct { 994 struct rt_msghdr m_rtm; 995 char m_space[512]; 996 } m_rtmsg; 997 998 int 999 rtmsg(cmd, flags) 1000 int cmd, flags; 1001 { 1002 static int seq; 1003 int rlen; 1004 register char *cp = m_rtmsg.m_space; 1005 register int l; 1006 1007 #define NEXTADDR(w, u) \ 1008 if (rtm_addrs & (w)) {\ 1009 l = ROUNDUP(u.sa.sa_len); memcpy(cp, &(u), l); cp += l;\ 1010 if (verbose) sodump(&(u),"u");\ 1011 } 1012 1013 errno = 0; 1014 memset(&m_rtmsg, 0, sizeof(m_rtmsg)); 1015 if (cmd == 'a') 1016 cmd = RTM_ADD; 1017 else if (cmd == 'c') 1018 cmd = RTM_CHANGE; 1019 else if (cmd == 'g') { 1020 cmd = RTM_GET; 1021 if (so_ifp.sa.sa_family == 0) { 1022 so_ifp.sa.sa_family = AF_LINK; 1023 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1024 rtm_addrs |= RTA_IFP; 1025 } 1026 } else 1027 cmd = RTM_DELETE; 1028 #define rtm m_rtmsg.m_rtm 1029 rtm.rtm_type = cmd; 1030 rtm.rtm_flags = flags; 1031 rtm.rtm_version = RTM_VERSION; 1032 rtm.rtm_seq = ++seq; 1033 rtm.rtm_addrs = rtm_addrs; 1034 rtm.rtm_rmx = rt_metrics; 1035 rtm.rtm_inits = rtm_inits; 1036 1037 if (rtm_addrs & RTA_NETMASK) 1038 mask_addr(); 1039 NEXTADDR(RTA_DST, so_dst); 1040 NEXTADDR(RTA_GATEWAY, so_gate); 1041 NEXTADDR(RTA_NETMASK, so_mask); 1042 NEXTADDR(RTA_GENMASK, so_genmask); 1043 NEXTADDR(RTA_IFP, so_ifp); 1044 NEXTADDR(RTA_IFA, so_ifa); 1045 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1046 if (verbose) 1047 print_rtmsg(&rtm, l); 1048 if (debugonly) 1049 return (0); 1050 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { 1051 perror("writing to routing socket"); 1052 return (-1); 1053 } 1054 if (cmd == RTM_GET) { 1055 do { 1056 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1057 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1058 if (l < 0) 1059 (void) fprintf(stderr, 1060 "route: read from routing socket: %s\n", 1061 strerror(errno)); 1062 else 1063 print_getmsg(&rtm, l); 1064 } 1065 #undef rtm 1066 return (0); 1067 } 1068 1069 void 1070 mask_addr() 1071 { 1072 int olen = so_mask.sa.sa_len; 1073 register char *cp1 = olen + (char *)&so_mask, *cp2; 1074 1075 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1076 if (*--cp1 != 0) { 1077 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1078 break; 1079 } 1080 if ((rtm_addrs & RTA_DST) == 0) 1081 return; 1082 switch (so_dst.sa.sa_family) { 1083 case AF_NS: 1084 case AF_INET: 1085 case AF_CCITT: 1086 case 0: 1087 return; 1088 case AF_ISO: 1089 olen = MIN(so_dst.siso.siso_nlen, 1090 MAX(so_mask.sa.sa_len - 6, 0)); 1091 break; 1092 } 1093 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1094 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1095 while (cp2 > cp1) 1096 *--cp2 = 0; 1097 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1098 while (cp1 > so_dst.sa.sa_data) 1099 *--cp1 &= *--cp2; 1100 switch (so_dst.sa.sa_family) { 1101 case AF_ISO: 1102 so_dst.siso.siso_nlen = olen; 1103 break; 1104 } 1105 } 1106 1107 char *msgtypes[] = { 1108 "", 1109 "RTM_ADD: Add Route", 1110 "RTM_DELETE: Delete Route", 1111 "RTM_CHANGE: Change Metrics or flags", 1112 "RTM_GET: Report Metrics", 1113 "RTM_LOSING: Kernel Suspects Partitioning", 1114 "RTM_REDIRECT: Told to use different route", 1115 "RTM_MISS: Lookup failed on this address", 1116 "RTM_LOCK: fix specified metrics", 1117 "RTM_OLDADD: caused by SIOCADDRT", 1118 "RTM_OLDDEL: caused by SIOCDELRT", 1119 "RTM_RESOLVE: Route created by cloning", 1120 "RTM_NEWADDR: address being added to iface", 1121 "RTM_DELADDR: address being removed from iface", 1122 "RTM_IFINFO: iface status change", 1123 0, 1124 }; 1125 1126 char metricnames[] = 1127 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount\1mtu"; 1128 char routeflags[] = 1129 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT\011CLONING\012XRESOLVE\013LLINFO\014STATIC\017PROTO2\020PROTO1"; 1130 char ifnetflags[] = 1131 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6NOTRAILERS\7RUNNING\010NOARP\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1\017LINK2\020MULTICAST"; 1132 char addrnames[] = 1133 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1134 1135 void 1136 print_rtmsg(rtm, msglen) 1137 register struct rt_msghdr *rtm; 1138 int msglen; 1139 { 1140 struct if_msghdr *ifm; 1141 struct ifa_msghdr *ifam; 1142 1143 if (verbose == 0) 1144 return; 1145 if (rtm->rtm_version != RTM_VERSION) { 1146 (void) printf("routing message version %d not understood\n", 1147 rtm->rtm_version); 1148 return; 1149 } 1150 (void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen); 1151 switch (rtm->rtm_type) { 1152 case RTM_IFINFO: 1153 ifm = (struct if_msghdr *)rtm; 1154 (void) printf("if# %d, flags:", ifm->ifm_index); 1155 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1156 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1157 break; 1158 case RTM_NEWADDR: 1159 case RTM_DELADDR: 1160 ifam = (struct ifa_msghdr *)rtm; 1161 (void) printf("metric %d, flags:", ifam->ifam_metric); 1162 bprintf(stdout, ifam->ifam_flags, routeflags); 1163 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1164 break; 1165 default: 1166 (void) printf("pid: %d, seq %d, errno %d, flags:", 1167 rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1168 bprintf(stdout, rtm->rtm_flags, routeflags); 1169 pmsg_common(rtm); 1170 } 1171 } 1172 1173 void 1174 print_getmsg(rtm, msglen) 1175 register struct rt_msghdr *rtm; 1176 int msglen; 1177 { 1178 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; 1179 struct sockaddr_dl *ifp = NULL; 1180 register struct sockaddr *sa; 1181 register char *cp; 1182 register int i; 1183 1184 (void) printf(" route to: %s\n", routename(&so_dst)); 1185 if (rtm->rtm_version != RTM_VERSION) { 1186 (void)fprintf(stderr, 1187 "routing message version %d not understood\n", 1188 rtm->rtm_version); 1189 return; 1190 } 1191 if (rtm->rtm_msglen > msglen) { 1192 (void)fprintf(stderr, 1193 "message length mismatch, in packet %d, returned %d\n", 1194 rtm->rtm_msglen, msglen); 1195 } 1196 if (rtm->rtm_errno) { 1197 (void) fprintf(stderr, "RTM_GET: %s (errno %d)\n", 1198 strerror(rtm->rtm_errno), rtm->rtm_errno); 1199 return; 1200 } 1201 cp = ((char *)(rtm + 1)); 1202 if (rtm->rtm_addrs) 1203 for (i = 1; i; i <<= 1) 1204 if (i & rtm->rtm_addrs) { 1205 sa = (struct sockaddr *)cp; 1206 switch (i) { 1207 case RTA_DST: 1208 dst = sa; 1209 break; 1210 case RTA_GATEWAY: 1211 gate = sa; 1212 break; 1213 case RTA_NETMASK: 1214 mask = sa; 1215 break; 1216 case RTA_IFP: 1217 if (sa->sa_family == AF_LINK && 1218 ((struct sockaddr_dl *)sa)->sdl_nlen) 1219 ifp = (struct sockaddr_dl *)sa; 1220 break; 1221 } 1222 ADVANCE(cp, sa); 1223 } 1224 if (dst && mask) 1225 mask->sa_family = dst->sa_family; /* XXX */ 1226 if (dst) 1227 (void)printf("destination: %s\n", routename(dst)); 1228 if (mask) { 1229 int savenflag = nflag; 1230 1231 nflag = 1; 1232 (void)printf(" mask: %s\n", routename(mask)); 1233 nflag = savenflag; 1234 } 1235 if (gate && rtm->rtm_flags & RTF_GATEWAY) 1236 (void)printf(" gateway: %s\n", routename(gate)); 1237 if (ifp) 1238 (void)printf(" interface: %.*s\n", 1239 ifp->sdl_nlen, ifp->sdl_data); 1240 (void)printf(" flags: "); 1241 bprintf(stdout, rtm->rtm_flags, routeflags); 1242 1243 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1244 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1245 1246 (void) printf("\n%s\n", "\ 1247 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1248 printf("%8d%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1249 printf("%8d%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1250 printf("%8d%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1251 printf("%8d%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1252 printf("%8d%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1253 printf("%8d%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1254 printf("%8d%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1255 if (rtm->rtm_rmx.rmx_expire) 1256 rtm->rtm_rmx.rmx_expire -= time(0); 1257 printf("%8d%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1258 #undef lock 1259 #undef msec 1260 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1261 if (verbose) 1262 pmsg_common(rtm); 1263 else if (rtm->rtm_addrs &~ RTA_IGN) { 1264 (void) printf("sockaddrs: "); 1265 bprintf(stdout, rtm->rtm_addrs, addrnames); 1266 putchar('\n'); 1267 } 1268 #undef RTA_IGN 1269 } 1270 1271 void 1272 pmsg_common(rtm) 1273 register struct rt_msghdr *rtm; 1274 { 1275 (void) printf("\nlocks: "); 1276 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1277 (void) printf(" inits: "); 1278 bprintf(stdout, rtm->rtm_inits, metricnames); 1279 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1280 } 1281 1282 void 1283 pmsg_addrs(cp, addrs) 1284 char *cp; 1285 int addrs; 1286 { 1287 register struct sockaddr *sa; 1288 int i; 1289 1290 if (addrs == 0) 1291 return; 1292 (void) printf("\nsockaddrs: "); 1293 bprintf(stdout, addrs, addrnames); 1294 (void) putchar('\n'); 1295 for (i = 1; i; i <<= 1) 1296 if (i & addrs) { 1297 sa = (struct sockaddr *)cp; 1298 (void) printf(" %s", routename(sa)); 1299 ADVANCE(cp, sa); 1300 } 1301 (void) putchar('\n'); 1302 (void) fflush(stdout); 1303 } 1304 1305 void 1306 bprintf(fp, b, s) 1307 register FILE *fp; 1308 register int b; 1309 register u_char *s; 1310 { 1311 register int i; 1312 int gotsome = 0; 1313 1314 if (b == 0) 1315 return; 1316 while (i = *s++) { 1317 if (b & (1 << (i-1))) { 1318 if (gotsome == 0) 1319 i = '<'; 1320 else 1321 i = ','; 1322 (void) putc(i, fp); 1323 gotsome = 1; 1324 for (; (i = *s) > 32; s++) 1325 (void) putc(i, fp); 1326 } else 1327 while (*s > 32) 1328 s++; 1329 } 1330 if (gotsome) 1331 (void) putc('>', fp); 1332 } 1333 1334 int 1335 keyword(cp) 1336 char *cp; 1337 { 1338 register struct keytab *kt = keywords; 1339 1340 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 1341 kt++; 1342 return kt->kt_i; 1343 } 1344 1345 void 1346 sodump(su, which) 1347 register sup su; 1348 char *which; 1349 { 1350 switch (su->sa.sa_family) { 1351 case AF_LINK: 1352 (void) printf("%s: link %s; ", 1353 which, link_ntoa(&su->sdl)); 1354 break; 1355 case AF_ISO: 1356 (void) printf("%s: iso %s; ", 1357 which, iso_ntoa(&su->siso.siso_addr)); 1358 break; 1359 case AF_INET: 1360 (void) printf("%s: inet %s; ", 1361 which, inet_ntoa(su->sin.sin_addr)); 1362 break; 1363 case AF_NS: 1364 (void) printf("%s: xns %s; ", 1365 which, ns_ntoa(su->sns.sns_addr)); 1366 break; 1367 } 1368 (void) fflush(stdout); 1369 } 1370 1371 /* States*/ 1372 #define VIRGIN 0 1373 #define GOTONE 1 1374 #define GOTTWO 2 1375 /* Inputs */ 1376 #define DIGIT (4*0) 1377 #define END (4*1) 1378 #define DELIM (4*2) 1379 1380 void 1381 sockaddr(addr, sa) 1382 register char *addr; 1383 register struct sockaddr *sa; 1384 { 1385 register char *cp = (char *)sa; 1386 int size = sa->sa_len; 1387 char *cplim = cp + size; 1388 register int byte = 0, state = VIRGIN, new; 1389 1390 memset(cp, 0, size); 1391 cp++; 1392 do { 1393 if ((*addr >= '0') && (*addr <= '9')) { 1394 new = *addr - '0'; 1395 } else if ((*addr >= 'a') && (*addr <= 'f')) { 1396 new = *addr - 'a' + 10; 1397 } else if ((*addr >= 'A') && (*addr <= 'F')) { 1398 new = *addr - 'A' + 10; 1399 } else if (*addr == 0) 1400 state |= END; 1401 else 1402 state |= DELIM; 1403 addr++; 1404 switch (state /* | INPUT */) { 1405 case GOTTWO | DIGIT: 1406 *cp++ = byte; /*FALLTHROUGH*/ 1407 case VIRGIN | DIGIT: 1408 state = GOTONE; byte = new; continue; 1409 case GOTONE | DIGIT: 1410 state = GOTTWO; byte = new + (byte << 4); continue; 1411 default: /* | DELIM */ 1412 state = VIRGIN; *cp++ = byte; byte = 0; continue; 1413 case GOTONE | END: 1414 case GOTTWO | END: 1415 *cp++ = byte; /* FALLTHROUGH */ 1416 case VIRGIN | END: 1417 break; 1418 } 1419 break; 1420 } while (cp < cplim); 1421 sa->sa_len = cp - (char *)sa; 1422 } 1423
Indexes created Fri Sep 26 20:09:58 GMT 2025