1 /* 2 * Copyright (c) 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD$"; 40 #endif /* not lint */ 41 42 #include <sys/param.h> 43 #include <sys/protosw.h> 44 #include <sys/socket.h> 45 #include <sys/time.h> 46 47 #include <net/if.h> 48 #include <net/if_var.h> 49 #include <net/if_dl.h> 50 #include <net/if_types.h> 51 #include <net/route.h> 52 53 #include <netinet/in.h> 54 #include <netipx/ipx.h> 55 #include <netatalk/at.h> 56 #include <netgraph/ng_socket.h> 57 58 #ifdef NS 59 #include <netns/ns.h> 60 #endif 61 62 #include <sys/sysctl.h> 63 64 #include <arpa/inet.h> 65 #include <libutil.h> 66 #include <netdb.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <unistd.h> 71 #include <err.h> 72 #include <time.h> 73 #include "netstat.h" 74 75 #define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 76 77 78 /* alignment constraint for routing socket */ 79 #define ROUNDUP(a) \ 80 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 81 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 82 83 /* 84 * Definitions for showing gateway flags. 85 */ 86 struct bits { 87 u_long b_mask; 88 char b_val; 89 } bits[] = { 90 { RTF_UP, 'U' }, 91 { RTF_GATEWAY, 'G' }, 92 { RTF_HOST, 'H' }, 93 { RTF_REJECT, 'R' }, 94 { RTF_DYNAMIC, 'D' }, 95 { RTF_MODIFIED, 'M' }, 96 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 97 { RTF_CLONING, 'C' }, 98 { RTF_XRESOLVE, 'X' }, 99 { RTF_LLINFO, 'L' }, 100 { RTF_STATIC, 'S' }, 101 { RTF_PROTO1, '1' }, 102 { RTF_PROTO2, '2' }, 103 { RTF_WASCLONED,'W' }, 104 { RTF_PRCLONING,'c' }, 105 { RTF_PROTO3, '3' }, 106 { RTF_BLACKHOLE,'B' }, 107 { RTF_BROADCAST,'b' }, 108 { 0 } 109 }; 110 111 typedef union { 112 long dummy; /* Helps align structure. */ 113 struct sockaddr u_sa; 114 u_short u_data[128]; 115 } sa_u; 116 117 static sa_u pt_u; 118 119 int do_rtent = 0; 120 struct rtentry rtentry; 121 struct radix_node rnode; 122 struct radix_mask rmask; 123 struct radix_node_head *rt_tables[AF_MAX+1]; 124 125 int NewTree = 0; 126 127 static struct sockaddr *kgetsa __P((struct sockaddr *)); 128 static void p_tree __P((struct radix_node *)); 129 static void p_rtnode __P((void)); 130 static void ntreestuff __P((void)); 131 static void np_rtentry __P((struct rt_msghdr *)); 132 static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int)); 133 static void p_flags __P((int, char *)); 134 static void p_rtentry __P((struct rtentry *)); 135 static u_long forgemask __P((u_long)); 136 static void domask __P((char *, u_long, u_long)); 137 138 #ifdef INET6 139 char *routename6 __P((struct sockaddr_in6 *)); 140 char *netname6 __P((struct sockaddr_in6 *, struct in6_addr *)); 141 #endif /*INET6*/ 142 143 /* 144 * Print routing tables. 145 */ 146 void 147 routepr(rtree) 148 u_long rtree; 149 { 150 struct radix_node_head *rnh, head; 151 int i; 152 153 printf("Routing tables\n"); 154 155 if (Aflag == 0 && NewTree) 156 ntreestuff(); 157 else { 158 if (rtree == 0) { 159 printf("rt_tables: symbol not in namelist\n"); 160 return; 161 } 162 163 kget(rtree, rt_tables); 164 for (i = 0; i <= AF_MAX; i++) { 165 if ((rnh = rt_tables[i]) == 0) 166 continue; 167 kget(rnh, head); 168 if (i == AF_UNSPEC) { 169 if (Aflag && af == 0) { 170 printf("Netmasks:\n"); 171 p_tree(head.rnh_treetop); 172 } 173 } else if (af == AF_UNSPEC || af == i) { 174 pr_family(i); 175 do_rtent = 1; 176 pr_rthdr(i); 177 p_tree(head.rnh_treetop); 178 } 179 } 180 } 181 } 182 183 /* 184 * Print address family header before a section of the routing table. 185 */ 186 void 187 pr_family(af) 188 int af; 189 { 190 char *afname; 191 192 switch (af) { 193 case AF_INET: 194 afname = "Internet"; 195 break; 196 #ifdef INET6 197 case AF_INET6: 198 afname = "Internet6"; 199 break; 200 #endif /*INET6*/ 201 case AF_IPX: 202 afname = "IPX"; 203 break; 204 #ifdef NS 205 case AF_NS: 206 afname = "XNS"; 207 break; 208 #endif 209 case AF_ISO: 210 afname = "ISO"; 211 break; 212 case AF_APPLETALK: 213 afname = "AppleTalk"; 214 break; 215 case AF_CCITT: 216 afname = "X.25"; 217 break; 218 case AF_NETGRAPH: 219 afname = "Netgraph"; 220 break; 221 default: 222 afname = NULL; 223 break; 224 } 225 if (afname) 226 printf("\n%s:\n", afname); 227 else 228 printf("\nProtocol Family %d:\n", af); 229 } 230 231 /* column widths; each followed by one space */ 232 #ifndef INET6 233 #define WID_DST(af) 18 /* width of destination column */ 234 #define WID_GW(af) 18 /* width of gateway column */ 235 #else 236 #define WID_DST(af) \ 237 ((af) == AF_INET6 ? (lflag ? 39 : (nflag ? 33: 18)) : 18) 238 #define WID_GW(af) \ 239 ((af) == AF_INET6 ? (lflag ? 31 : (nflag ? 29 : 18)) : 18) 240 #endif /*INET6*/ 241 242 /* 243 * Print header for routing table columns. 244 */ 245 void 246 pr_rthdr(af) 247 int af; 248 { 249 250 if (Aflag) 251 printf("%-8.8s ","Address"); 252 if (af == AF_INET || lflag) 253 printf("%-*.*s %-*.*s %-6.6s %6.6s%8.8s %8.8s %6s\n", 254 WID_DST(af), WID_DST(af), "Destination", 255 WID_GW(af), WID_GW(af), "Gateway", 256 "Flags", "Refs", "Use", "Netif", "Expire"); 257 else 258 printf("%-*.*s %-*.*s %-6.6s %8.8s %6s\n", 259 WID_DST(af), WID_DST(af), "Destination", 260 WID_GW(af), WID_GW(af), "Gateway", 261 "Flags", "Netif", "Expire"); 262 } 263 264 static struct sockaddr * 265 kgetsa(dst) 266 register struct sockaddr *dst; 267 { 268 269 kget(dst, pt_u.u_sa); 270 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 271 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 272 return (&pt_u.u_sa); 273 } 274 275 static void 276 p_tree(rn) 277 struct radix_node *rn; 278 { 279 280 again: 281 kget(rn, rnode); 282 if (rnode.rn_bit < 0) { 283 if (Aflag) 284 printf("%-8.8lx ", (u_long)rn); 285 if (rnode.rn_flags & RNF_ROOT) { 286 if (Aflag) 287 printf("(root node)%s", 288 rnode.rn_dupedkey ? " =>\n" : "\n"); 289 } else if (do_rtent) { 290 kget(rn, rtentry); 291 p_rtentry(&rtentry); 292 if (Aflag) 293 p_rtnode(); 294 } else { 295 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 296 NULL, 0, 44); 297 putchar('\n'); 298 } 299 if ((rn = rnode.rn_dupedkey)) 300 goto again; 301 } else { 302 if (Aflag && do_rtent) { 303 printf("%-8.8lx ", (u_long)rn); 304 p_rtnode(); 305 } 306 rn = rnode.rn_right; 307 p_tree(rnode.rn_left); 308 p_tree(rn); 309 } 310 } 311 312 char nbuf[20]; 313 314 static void 315 p_rtnode() 316 { 317 struct radix_mask *rm = rnode.rn_mklist; 318 319 if (rnode.rn_bit < 0) { 320 if (rnode.rn_mask) { 321 printf("\t mask "); 322 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 323 NULL, 0, -1); 324 } else if (rm == 0) 325 return; 326 } else { 327 sprintf(nbuf, "(%d)", rnode.rn_bit); 328 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 329 } 330 while (rm) { 331 kget(rm, rmask); 332 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 333 printf(" mk = %8.8lx {(%d),%s", 334 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 335 if (rmask.rm_flags & RNF_NORMAL) { 336 struct radix_node rnode_aux; 337 printf(" <normal>, "); 338 kget(rmask.rm_leaf, rnode_aux); 339 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 340 NULL, 0, -1); 341 } else 342 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 343 NULL, 0, -1); 344 putchar('}'); 345 if ((rm = rmask.rm_mklist)) 346 printf(" ->"); 347 } 348 putchar('\n'); 349 } 350 351 static void 352 ntreestuff() 353 { 354 size_t needed; 355 int mib[6]; 356 char *buf, *next, *lim; 357 register struct rt_msghdr *rtm; 358 359 mib[0] = CTL_NET; 360 mib[1] = PF_ROUTE; 361 mib[2] = 0; 362 mib[3] = 0; 363 mib[4] = NET_RT_DUMP; 364 mib[5] = 0; 365 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 366 err(1, "sysctl: net.route.0.0.dump estimate"); 367 } 368 369 if ((buf = malloc(needed)) == 0) { 370 err(2, "malloc(%lu)", (unsigned long)needed); 371 } 372 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 373 err(1, "sysctl: net.route.0.0.dump"); 374 } 375 lim = buf + needed; 376 for (next = buf; next < lim; next += rtm->rtm_msglen) { 377 rtm = (struct rt_msghdr *)next; 378 np_rtentry(rtm); 379 } 380 } 381 382 static void 383 np_rtentry(rtm) 384 register struct rt_msghdr *rtm; 385 { 386 register struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 387 #ifdef notdef 388 static int masks_done, banner_printed; 389 #endif 390 static int old_af; 391 int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 392 393 #ifdef notdef 394 /* for the moment, netmasks are skipped over */ 395 if (!banner_printed) { 396 printf("Netmasks:\n"); 397 banner_printed = 1; 398 } 399 if (masks_done == 0) { 400 if (rtm->rtm_addrs != RTA_DST ) { 401 masks_done = 1; 402 af = sa->sa_family; 403 } 404 } else 405 #endif 406 af = sa->sa_family; 407 if (af != old_af) { 408 pr_family(af); 409 old_af = af; 410 } 411 if (rtm->rtm_addrs == RTA_DST) 412 p_sockaddr(sa, NULL, 0, 36); 413 else { 414 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 415 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 416 p_sockaddr(sa, NULL, 0, 18); 417 } 418 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 419 putchar('\n'); 420 } 421 422 static void 423 p_sockaddr(sa, mask, flags, width) 424 struct sockaddr *sa, *mask; 425 int flags, width; 426 { 427 char workbuf[128], *cplim; 428 register char *cp = workbuf; 429 430 switch(sa->sa_family) { 431 case AF_INET: 432 { 433 register struct sockaddr_in *sin = (struct sockaddr_in *)sa; 434 435 if ((sin->sin_addr.s_addr == INADDR_ANY) && 436 mask && 437 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 438 ==0L) 439 cp = "default" ; 440 else if (flags & RTF_HOST) 441 cp = routename(sin->sin_addr.s_addr); 442 else if (mask) 443 cp = netname(sin->sin_addr.s_addr, 444 ntohl(((struct sockaddr_in *)mask) 445 ->sin_addr.s_addr)); 446 else 447 cp = netname(sin->sin_addr.s_addr, 0L); 448 break; 449 } 450 451 #ifdef INET6 452 case AF_INET6: 453 { 454 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 455 struct in6_addr *in6 = &sa6->sin6_addr; 456 457 /* 458 * XXX: This is a special workaround for KAME kernels. 459 * sin6_scope_id field of SA should be set in the future. 460 */ 461 if (IN6_IS_ADDR_LINKLOCAL(in6) || 462 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 463 /* XXX: override is ok? */ 464 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 465 *(u_short *)&in6->s6_addr[2] = 0; 466 } 467 468 if (flags & RTF_HOST) 469 cp = routename6(sa6); 470 else if (mask) 471 cp = netname6(sa6, 472 &((struct sockaddr_in6 *)mask)->sin6_addr); 473 else { 474 cp = netname6(sa6, NULL); 475 } 476 break; 477 } 478 #endif /*INET6*/ 479 480 case AF_IPX: 481 { 482 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 483 if (ipx_nullnet(satoipx_addr(work))) 484 cp = "default"; 485 else 486 cp = ipx_print(sa); 487 break; 488 } 489 case AF_APPLETALK: 490 { 491 if (!(flags & RTF_HOST) && mask) 492 cp = atalk_print2(sa,mask,9); 493 else 494 cp = atalk_print(sa,11); 495 break; 496 } 497 case AF_NETGRAPH: 498 { 499 printf("%s", ((struct sockaddr_ng *)sa)->sg_data); 500 break; 501 } 502 #ifdef NS 503 case AF_NS: 504 cp = ns_print(sa); 505 break; 506 #endif 507 508 case AF_LINK: 509 { 510 register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 511 512 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 513 sdl->sdl_slen == 0) 514 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 515 else 516 switch (sdl->sdl_type) { 517 518 case IFT_ETHER: 519 { 520 register int i; 521 register u_char *lla = (u_char *)sdl->sdl_data + 522 sdl->sdl_nlen; 523 524 cplim = ""; 525 for (i = 0; i < sdl->sdl_alen; i++, lla++) { 526 cp += sprintf(cp, "%s%x", cplim, *lla); 527 cplim = ":"; 528 } 529 cp = workbuf; 530 break; 531 } 532 533 default: 534 cp = link_ntoa(sdl); 535 break; 536 } 537 break; 538 } 539 540 default: 541 { 542 register u_char *s = (u_char *)sa->sa_data, *slim; 543 544 slim = sa->sa_len + (u_char *) sa; 545 cplim = cp + sizeof(workbuf) - 6; 546 cp += sprintf(cp, "(%d)", sa->sa_family); 547 while (s < slim && cp < cplim) { 548 cp += sprintf(cp, " %02x", *s++); 549 if (s < slim) 550 cp += sprintf(cp, "%02x", *s++); 551 } 552 cp = workbuf; 553 } 554 } 555 if (width < 0 ) 556 printf("%s ", cp); 557 else { 558 if (nflag) 559 printf("%-*s ", width, cp); 560 else 561 printf("%-*.*s ", width, width, cp); 562 } 563 } 564 565 static void 566 p_flags(f, format) 567 register int f; 568 char *format; 569 { 570 char name[33], *flags; 571 register struct bits *p = bits; 572 573 for (flags = name; p->b_mask; p++) 574 if (p->b_mask & f) 575 *flags++ = p->b_val; 576 *flags = '\0'; 577 printf(format, name); 578 } 579 580 static void 581 p_rtentry(rt) 582 register struct rtentry *rt; 583 { 584 static struct ifnet ifnet, *lastif; 585 struct rtentry parent; 586 static char name[16]; 587 static char prettyname[9]; 588 struct sockaddr *sa; 589 sa_u addr, mask; 590 591 /* 592 * Don't print protocol-cloned routes unless -a. 593 */ 594 if (rt->rt_flags & RTF_WASCLONED && !aflag) { 595 kget(rt->rt_parent, parent); 596 if (parent.rt_flags & RTF_PRCLONING) 597 return; 598 } 599 600 bzero(&addr, sizeof(addr)); 601 if ((sa = kgetsa(rt_key(rt)))) 602 bcopy(sa, &addr, sa->sa_len); 603 bzero(&mask, sizeof(mask)); 604 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 605 bcopy(sa, &mask, sa->sa_len); 606 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, 607 WID_DST(addr.u_sa.sa_family)); 608 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, 609 WID_GW(addr.u_sa.sa_family)); 610 p_flags(rt->rt_flags, "%-6.6s "); 611 if (addr.u_sa.sa_family == AF_INET || lflag) 612 printf("%6ld %8ld ", rt->rt_refcnt, rt->rt_use); 613 if (rt->rt_ifp) { 614 if (rt->rt_ifp != lastif) { 615 kget(rt->rt_ifp, ifnet); 616 kread((u_long)ifnet.if_name, name, 16); 617 lastif = rt->rt_ifp; 618 snprintf(prettyname, sizeof prettyname, 619 "%s%d", name, ifnet.if_unit); 620 } 621 printf("%8.8s", prettyname); 622 if (rt->rt_rmx.rmx_expire) { 623 time_t expire_time; 624 625 if ((expire_time = 626 rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0) 627 printf(" %6d%s", (int)expire_time, 628 rt->rt_nodes[0].rn_dupedkey ? " =>" : ""); 629 else 630 goto ifandkey; 631 } else if (rt->rt_nodes[0].rn_dupedkey) { 632 ifandkey:; 633 printf(" =>"); 634 } 635 636 } 637 putchar('\n'); 638 } 639 640 char * 641 routename(in) 642 u_long in; 643 { 644 register char *cp; 645 static char line[MAXHOSTNAMELEN]; 646 struct hostent *hp; 647 648 cp = 0; 649 if (!nflag) { 650 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 651 AF_INET); 652 if (hp) { 653 cp = hp->h_name; 654 trimdomain(cp, strlen(cp)); 655 } 656 } 657 if (cp) { 658 strncpy(line, cp, sizeof(line) - 1); 659 line[sizeof(line) - 1] = '\0'; 660 } else { 661 #define C(x) ((x) & 0xff) 662 in = ntohl(in); 663 sprintf(line, "%lu.%lu.%lu.%lu", 664 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 665 } 666 return (line); 667 } 668 669 static u_long 670 forgemask(a) 671 u_long a; 672 { 673 u_long m; 674 675 if (IN_CLASSA(a)) 676 m = IN_CLASSA_NET; 677 else if (IN_CLASSB(a)) 678 m = IN_CLASSB_NET; 679 else 680 m = IN_CLASSC_NET; 681 return (m); 682 } 683 684 static void 685 domask(dst, addr, mask) 686 char *dst; 687 u_long addr, mask; 688 { 689 register int b, i; 690 691 if (!mask || (forgemask(addr) == mask)) { 692 *dst = '\0'; 693 return; 694 } 695 i = 0; 696 for (b = 0; b < 32; b++) 697 if (mask & (1 << b)) { 698 register int bb; 699 700 i = b; 701 for (bb = b+1; bb < 32; bb++) 702 if (!(mask & (1 << bb))) { 703 i = -1; /* noncontig */ 704 break; 705 } 706 break; 707 } 708 if (i == -1) 709 sprintf(dst, "&0x%lx", mask); 710 else 711 sprintf(dst, "/%d", 32-i); 712 } 713 714 /* 715 * Return the name of the network whose address is given. 716 * The address is assumed to be that of a net or subnet, not a host. 717 */ 718 char * 719 netname(in, mask) 720 u_long in, mask; 721 { 722 char *cp = 0; 723 static char line[MAXHOSTNAMELEN]; 724 struct netent *np = 0; 725 u_long net, omask, dmask; 726 register u_long i; 727 728 i = ntohl(in); 729 omask = mask; 730 if (!nflag && i) { 731 dmask = forgemask(i); 732 net = i & dmask; 733 if (!(np = getnetbyaddr(i, AF_INET)) && net != i) 734 np = getnetbyaddr(net, AF_INET); 735 if (np) { 736 cp = np->n_name; 737 trimdomain(cp, strlen(cp)); 738 } 739 } 740 if (cp) 741 strncpy(line, cp, sizeof(line) - 1); 742 else if ((i & 0xffffff) == 0) 743 sprintf(line, "%lu", C(i >> 24)); 744 else if ((i & 0xffff) == 0) 745 sprintf(line, "%lu.%lu", C(i >> 24) , C(i >> 16)); 746 else if ((i & 0xff) == 0) 747 sprintf(line, "%lu.%lu.%lu", C(i >> 24), C(i >> 16), C(i >> 8)); 748 else 749 sprintf(line, "%lu.%lu.%lu.%lu", C(i >> 24), 750 C(i >> 16), C(i >> 8), C(i)); 751 domask(line+strlen(line), i, omask); 752 return (line); 753 } 754 755 #ifdef INET6 756 char * 757 netname6(sa6, mask) 758 struct sockaddr_in6 *sa6; 759 struct in6_addr *mask; 760 { 761 static char line[MAXHOSTNAMELEN]; 762 u_char *p = (u_char *)mask; 763 u_char *lim; 764 int masklen, illegal = 0, flag = NI_WITHSCOPEID; 765 766 if (mask) { 767 for (masklen = 0, lim = p + 16; p < lim; p++) { 768 switch (*p) { 769 case 0xff: 770 masklen += 8; 771 break; 772 case 0xfe: 773 masklen += 7; 774 break; 775 case 0xfc: 776 masklen += 6; 777 break; 778 case 0xf8: 779 masklen += 5; 780 break; 781 case 0xf0: 782 masklen += 4; 783 break; 784 case 0xe0: 785 masklen += 3; 786 break; 787 case 0xc0: 788 masklen += 2; 789 break; 790 case 0x80: 791 masklen += 1; 792 break; 793 case 0x00: 794 break; 795 default: 796 illegal ++; 797 break; 798 } 799 } 800 if (illegal) 801 fprintf(stderr, "illegal prefixlen\n"); 802 } 803 else 804 masklen = 128; 805 806 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 807 return("default"); 808 809 if (nflag) 810 flag |= NI_NUMERICHOST; 811 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 812 NULL, 0, flag); 813 814 if (nflag) 815 sprintf(&line[strlen(line)], "/%d", masklen); 816 817 return line; 818 } 819 820 char * 821 routename6(sa6) 822 struct sockaddr_in6 *sa6; 823 { 824 static char line[MAXHOSTNAMELEN]; 825 int flag = NI_WITHSCOPEID; 826 /* use local variable for safety */ 827 struct sockaddr_in6 sa6_local = {AF_INET6, sizeof(sa6_local),}; 828 829 sa6_local.sin6_addr = sa6->sin6_addr; 830 sa6_local.sin6_scope_id = sa6->sin6_scope_id; 831 832 if (nflag) 833 flag |= NI_NUMERICHOST; 834 835 getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, 836 line, sizeof(line), NULL, 0, flag); 837 838 return line; 839 } 840 #endif /*INET6*/ 841 842 /* 843 * Print routing statistics 844 */ 845 void 846 rt_stats(off) 847 u_long off; 848 { 849 struct rtstat rtstat; 850 851 if (off == 0) { 852 printf("rtstat: symbol not in namelist\n"); 853 return; 854 } 855 kread(off, (char *)&rtstat, sizeof (rtstat)); 856 printf("routing:\n"); 857 printf("\t%u bad routing redirect%s\n", 858 rtstat.rts_badredirect, plural(rtstat.rts_badredirect)); 859 printf("\t%u dynamically created route%s\n", 860 rtstat.rts_dynamic, plural(rtstat.rts_dynamic)); 861 printf("\t%u new gateway%s due to redirects\n", 862 rtstat.rts_newgateway, plural(rtstat.rts_newgateway)); 863 printf("\t%u destination%s found unreachable\n", 864 rtstat.rts_unreach, plural(rtstat.rts_unreach)); 865 printf("\t%u use%s of a wildcard route\n", 866 rtstat.rts_wildcard, plural(rtstat.rts_wildcard)); 867 } 868 869 char * 870 ipx_print(sa) 871 register struct sockaddr *sa; 872 { 873 u_short port; 874 struct servent *sp = 0; 875 char *net = "", *host = ""; 876 register char *p; 877 register u_char *q; 878 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 879 static char mybuf[50]; 880 char cport[10], chost[15], cnet[15]; 881 882 port = ntohs(work.x_port); 883 884 if (ipx_nullnet(work) && ipx_nullhost(work)) { 885 886 if (port) { 887 if (sp) 888 sprintf(mybuf, "*.%s", sp->s_name); 889 else 890 sprintf(mybuf, "*.%x", port); 891 } else 892 sprintf(mybuf, "*.*"); 893 894 return (mybuf); 895 } 896 897 if (ipx_wildnet(work)) 898 net = "any"; 899 else if (ipx_nullnet(work)) 900 net = "*"; 901 else { 902 q = work.x_net.c_net; 903 sprintf(cnet, "%02x%02x%02x%02x", 904 q[0], q[1], q[2], q[3]); 905 for (p = cnet; *p == '0' && p < cnet + 8; p++) 906 continue; 907 net = p; 908 } 909 910 if (ipx_wildhost(work)) 911 host = "any"; 912 else if (ipx_nullhost(work)) 913 host = "*"; 914 else { 915 q = work.x_host.c_host; 916 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 917 q[0], q[1], q[2], q[3], q[4], q[5]); 918 for (p = chost; *p == '0' && p < chost + 12; p++) 919 continue; 920 host = p; 921 } 922 923 if (port) { 924 if (strcmp(host, "*") == 0) 925 host = ""; 926 if (sp) 927 snprintf(cport, sizeof(cport), 928 "%s%s", *host ? "." : "", sp->s_name); 929 else 930 snprintf(cport, sizeof(cport), 931 "%s%x", *host ? "." : "", port); 932 } else 933 *cport = 0; 934 935 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 936 return(mybuf); 937 } 938 939 char * 940 ipx_phost(sa) 941 struct sockaddr *sa; 942 { 943 register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 944 struct sockaddr_ipx work; 945 static union ipx_net ipx_zeronet; 946 char *p; 947 struct ipx_addr in; 948 949 work = *sipx; 950 in = work.sipx_addr; 951 952 work.sipx_addr.x_port = 0; 953 work.sipx_addr.x_net = ipx_zeronet; 954 p = ipx_print((struct sockaddr *)&work); 955 if (strncmp("*.", p, 2) == 0) p += 2; 956 957 return(p); 958 } 959 960 #ifdef NS 961 short ns_nullh[] = {0,0,0}; 962 short ns_bh[] = {-1,-1,-1}; 963 964 char * 965 ns_print(sa) 966 register struct sockaddr *sa; 967 { 968 register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa; 969 struct ns_addr work; 970 union { union ns_net net_e; u_long long_e; } net; 971 u_short port; 972 static char mybuf[50], cport[10], chost[25]; 973 char *host = ""; 974 register char *p; register u_char *q; 975 976 work = sns->sns_addr; 977 port = ntohs(work.x_port); 978 work.x_port = 0; 979 net.net_e = work.x_net; 980 if (ns_nullhost(work) && net.long_e == 0) { 981 if (port ) { 982 sprintf(mybuf, "*.%xH", port); 983 upHex(mybuf); 984 } else 985 sprintf(mybuf, "*.*"); 986 return (mybuf); 987 } 988 989 if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) { 990 host = "any"; 991 } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) { 992 host = "*"; 993 } else { 994 q = work.x_host.c_host; 995 sprintf(chost, "%02x%02x%02x%02x%02x%02xH", 996 q[0], q[1], q[2], q[3], q[4], q[5]); 997 for (p = chost; *p == '0' && p < chost + 12; p++) 998 continue; 999 host = p; 1000 } 1001 if (port) 1002 sprintf(cport, ".%xH", htons(port)); 1003 else 1004 *cport = 0; 1005 1006 sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport); 1007 upHex(mybuf); 1008 return(mybuf); 1009 } 1010 1011 char * 1012 ns_phost(sa) 1013 struct sockaddr *sa; 1014 { 1015 register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa; 1016 struct sockaddr_ns work; 1017 static union ns_net ns_zeronet; 1018 char *p; 1019 1020 work = *sns; 1021 work.sns_addr.x_port = 0; 1022 work.sns_addr.x_net = ns_zeronet; 1023 1024 p = ns_print((struct sockaddr *)&work); 1025 if (strncmp("0H.", p, 3) == 0) 1026 p += 3; 1027 return(p); 1028 } 1029 #endif 1030 1031 void 1032 upHex(p0) 1033 char *p0; 1034 { 1035 register char *p = p0; 1036 1037 for (; *p; p++) 1038 switch (*p) { 1039 1040 case 'a': 1041 case 'b': 1042 case 'c': 1043 case 'd': 1044 case 'e': 1045 case 'f': 1046 *p += ('A' - 'a'); 1047 break; 1048 } 1049 } 1050