route.c revision 59540
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 36static char sccsid[] = "From: @(#)route.c 8.6 (Berkeley) 4/28/95"; 37#endif 38static const char rcsid[] = 39 "$FreeBSD: head/usr.bin/netstat/route.c 59540 2000-04-23 14:18:18Z markm $"; 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 <netdb.h> 66#include <stdio.h> 67#include <stdlib.h> 68#include <string.h> 69#include <unistd.h> 70#include <err.h> 71#include <time.h> 72#include "netstat.h" 73 74#define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 75 76/* 77 * Definitions for showing gateway flags. 78 */ 79struct bits { 80 u_long b_mask; 81 char b_val; 82} bits[] = { 83 { RTF_UP, 'U' }, 84 { RTF_GATEWAY, 'G' }, 85 { RTF_HOST, 'H' }, 86 { RTF_REJECT, 'R' }, 87 { RTF_DYNAMIC, 'D' }, 88 { RTF_MODIFIED, 'M' }, 89 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 90 { RTF_CLONING, 'C' }, 91 { RTF_XRESOLVE, 'X' }, 92 { RTF_LLINFO, 'L' }, 93 { RTF_STATIC, 'S' }, 94 { RTF_PROTO1, '1' }, 95 { RTF_PROTO2, '2' }, 96 { RTF_WASCLONED,'W' }, 97 { RTF_PRCLONING,'c' }, 98 { RTF_PROTO3, '3' }, 99 { RTF_BLACKHOLE,'B' }, 100 { RTF_BROADCAST,'b' }, 101 { 0 } 102}; 103 104typedef union { 105 long dummy; /* Helps align structure. */ 106 struct sockaddr u_sa; 107 u_short u_data[128]; 108} sa_u; 109 110static sa_u pt_u; 111 112int do_rtent = 0; 113struct rtentry rtentry; 114struct radix_node rnode; 115struct radix_mask rmask; 116struct radix_node_head *rt_tables[AF_MAX+1]; 117 118int NewTree = 0; 119 120static struct sockaddr *kgetsa __P((struct sockaddr *)); 121static void p_tree __P((struct radix_node *)); 122static void p_rtnode __P((void)); 123static void ntreestuff __P((void)); 124static void np_rtentry __P((struct rt_msghdr *)); 125static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int)); 126static void p_flags __P((int, char *)); 127static void p_rtentry __P((struct rtentry *)); 128static u_long forgemask __P((u_long)); 129static void domask __P((char *, u_long, u_long)); 130 131#ifdef INET6 132char *routename6 __P((struct sockaddr_in6 *)); 133char *netname6 __P((struct sockaddr_in6 *, struct in6_addr *)); 134#endif /*INET6*/ 135 136/* 137 * Print routing tables. 138 */ 139void 140routepr(rtree) 141 u_long rtree; 142{ 143 struct radix_node_head *rnh, head; 144 int i; 145 146 printf("Routing tables\n"); 147 148 if (Aflag == 0 && NewTree) 149 ntreestuff(); 150 else { 151 if (rtree == 0) { 152 printf("rt_tables: symbol not in namelist\n"); 153 return; 154 } 155 156 kget(rtree, rt_tables); 157 for (i = 0; i <= AF_MAX; i++) { 158 if ((rnh = rt_tables[i]) == 0) 159 continue; 160 kget(rnh, head); 161 if (i == AF_UNSPEC) { 162 if (Aflag && af == 0) { 163 printf("Netmasks:\n"); 164 p_tree(head.rnh_treetop); 165 } 166 } else if (af == AF_UNSPEC || af == i) { 167 pr_family(i); 168 do_rtent = 1; 169 pr_rthdr(i); 170 p_tree(head.rnh_treetop); 171 } 172 } 173 } 174} 175 176/* 177 * Print address family header before a section of the routing table. 178 */ 179void 180pr_family(af) 181 int af; 182{ 183 char *afname; 184 185 switch (af) { 186 case AF_INET: 187 afname = "Internet"; 188 break; 189#ifdef INET6 190 case AF_INET6: 191 afname = "Internet6"; 192 break; 193#endif /*INET6*/ 194 case AF_IPX: 195 afname = "IPX"; 196 break; 197#ifdef NS 198 case AF_NS: 199 afname = "XNS"; 200 break; 201#endif 202 case AF_ISO: 203 afname = "ISO"; 204 break; 205 case AF_APPLETALK: 206 afname = "AppleTalk"; 207 break; 208 case AF_CCITT: 209 afname = "X.25"; 210 break; 211 case AF_NETGRAPH: 212 afname = "Netgraph"; 213 break; 214 default: 215 afname = NULL; 216 break; 217 } 218 if (afname) 219 printf("\n%s:\n", afname); 220 else 221 printf("\nProtocol Family %d:\n", af); 222} 223 224/* column widths; each followed by one space */ 225#define WID_DST 18 /* width of destination column */ 226#define WID_GW 18 /* width of gateway column */ 227#ifdef INET6 228#define WID_DST6 (lflag ? 39 : (nflag ? 33: 18)) /* width of dest column */ 229#define WID_GW6 (lflag ? 31 : (nflag ? 29 : 18)) /* width of gateway column */ 230#endif /*INET6*/ 231 232/* 233 * Print header for routing table columns. 234 */ 235void 236pr_rthdr(wid_af) 237 int wid_af; 238{ 239 int wid_dst, wid_gw; 240 241 wid_dst = 242#ifdef INET6 243 wid_af == AF_INET6 ? WID_DST6 : 244#endif 245 WID_DST; 246 wid_gw = 247#ifdef INET6 248 wid_af == AF_INET6 ? WID_GW6 : 249#endif 250 WID_GW; 251 252 if (Aflag) 253 printf("%-8.8s ","Address"); 254 if (wid_af == AF_INET || lflag) 255 printf("%-*.*s %-*.*s %-6.6s %6.6s%8.8s %8.8s %6s\n", 256 wid_dst, wid_dst, "Destination", 257 wid_gw, wid_gw, "Gateway", 258 "Flags", "Refs", "Use", "Netif", "Expire"); 259 else 260 printf("%-*.*s %-*.*s %-6.6s %8.8s %6s\n", 261 wid_dst, wid_dst, "Destination", 262 wid_gw, wid_gw, "Gateway", 263 "Flags", "Netif", "Expire"); 264} 265 266static struct sockaddr * 267kgetsa(dst) 268 register struct sockaddr *dst; 269{ 270 271 kget(dst, pt_u.u_sa); 272 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 273 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 274 return (&pt_u.u_sa); 275} 276 277static void 278p_tree(rn) 279 struct radix_node *rn; 280{ 281 282again: 283 kget(rn, rnode); 284 if (rnode.rn_bit < 0) { 285 if (Aflag) 286 printf("%-8.8lx ", (u_long)rn); 287 if (rnode.rn_flags & RNF_ROOT) { 288 if (Aflag) 289 printf("(root node)%s", 290 rnode.rn_dupedkey ? " =>\n" : "\n"); 291 } else if (do_rtent) { 292 kget(rn, rtentry); 293 p_rtentry(&rtentry); 294 if (Aflag) 295 p_rtnode(); 296 } else { 297 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 298 NULL, 0, 44); 299 putchar('\n'); 300 } 301 if ((rn = rnode.rn_dupedkey)) 302 goto again; 303 } else { 304 if (Aflag && do_rtent) { 305 printf("%-8.8lx ", (u_long)rn); 306 p_rtnode(); 307 } 308 rn = rnode.rn_right; 309 p_tree(rnode.rn_left); 310 p_tree(rn); 311 } 312} 313 314char nbuf[20]; 315 316static void 317p_rtnode() 318{ 319 struct radix_mask *rm = rnode.rn_mklist; 320 321 if (rnode.rn_bit < 0) { 322 if (rnode.rn_mask) { 323 printf("\t mask "); 324 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 325 NULL, 0, -1); 326 } else if (rm == 0) 327 return; 328 } else { 329 sprintf(nbuf, "(%d)", rnode.rn_bit); 330 printf("%6.6s %8.8lx : %8.8lx", nbuf, (u_long)rnode.rn_left, (u_long)rnode.rn_right); 331 } 332 while (rm) { 333 kget(rm, rmask); 334 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 335 printf(" mk = %8.8lx {(%d),%s", 336 (u_long)rm, -1 - rmask.rm_bit, rmask.rm_refs ? nbuf : " "); 337 if (rmask.rm_flags & RNF_NORMAL) { 338 struct radix_node rnode_aux; 339 printf(" <normal>, "); 340 kget(rmask.rm_leaf, rnode_aux); 341 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 342 NULL, 0, -1); 343 } else 344 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 345 NULL, 0, -1); 346 putchar('}'); 347 if ((rm = rmask.rm_mklist)) 348 printf(" ->"); 349 } 350 putchar('\n'); 351} 352 353static void 354ntreestuff() 355{ 356 size_t needed; 357 int mib[6]; 358 char *buf, *next, *lim; 359 register struct rt_msghdr *rtm; 360 361 mib[0] = CTL_NET; 362 mib[1] = PF_ROUTE; 363 mib[2] = 0; 364 mib[3] = 0; 365 mib[4] = NET_RT_DUMP; 366 mib[5] = 0; 367 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 368 err(1, "sysctl: net.route.0.0.dump estimate"); 369 } 370 371 if ((buf = malloc(needed)) == 0) { 372 err(2, "malloc(%lu)", (unsigned long)needed); 373 } 374 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 375 err(1, "sysctl: net.route.0.0.dump"); 376 } 377 lim = buf + needed; 378 for (next = buf; next < lim; next += rtm->rtm_msglen) { 379 rtm = (struct rt_msghdr *)next; 380 np_rtentry(rtm); 381 } 382} 383 384static void 385np_rtentry(rtm) 386 register struct rt_msghdr *rtm; 387{ 388 register struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 389#ifdef notdef 390 static int masks_done, banner_printed; 391#endif 392 static int old_af; 393 int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 394 395#ifdef notdef 396 /* for the moment, netmasks are skipped over */ 397 if (!banner_printed) { 398 printf("Netmasks:\n"); 399 banner_printed = 1; 400 } 401 if (masks_done == 0) { 402 if (rtm->rtm_addrs != RTA_DST ) { 403 masks_done = 1; 404 af = sa->sa_family; 405 } 406 } else 407#endif 408 af = sa->sa_family; 409 if (af != old_af) { 410 pr_family(af); 411 old_af = af; 412 } 413 if (rtm->rtm_addrs == RTA_DST) 414 p_sockaddr(sa, NULL, 0, 36); 415 else { 416 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 417 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 418 p_sockaddr(sa, NULL, 0, 18); 419 } 420 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 421 putchar('\n'); 422} 423 424static void 425p_sockaddr(sa, mask, flags, width) 426 struct sockaddr *sa, *mask; 427 int flags, width; 428{ 429 char workbuf[128], *cplim; 430 register char *cp = workbuf; 431 432 switch(sa->sa_family) { 433 case AF_INET: 434 { 435 register struct sockaddr_in *sin = (struct sockaddr_in *)sa; 436 437 if ((sin->sin_addr.s_addr == INADDR_ANY) && 438 mask && 439 ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) 440 ==0L) 441 cp = "default" ; 442 else if (flags & RTF_HOST) 443 cp = routename(sin->sin_addr.s_addr); 444 else if (mask) 445 cp = netname(sin->sin_addr.s_addr, 446 ntohl(((struct sockaddr_in *)mask) 447 ->sin_addr.s_addr)); 448 else 449 cp = netname(sin->sin_addr.s_addr, 0L); 450 break; 451 } 452 453#ifdef INET6 454 case AF_INET6: 455 { 456 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa; 457 struct in6_addr *in6 = &sa6->sin6_addr; 458 459 /* 460 * XXX: This is a special workaround for KAME kernels. 461 * sin6_scope_id field of SA should be set in the future. 462 */ 463 if (IN6_IS_ADDR_LINKLOCAL(in6) || 464 IN6_IS_ADDR_MC_LINKLOCAL(in6)) { 465 /* XXX: override is ok? */ 466 sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]); 467 *(u_short *)&in6->s6_addr[2] = 0; 468 } 469 470 if (flags & RTF_HOST) 471 cp = routename6(sa6); 472 else if (mask) 473 cp = netname6(sa6, 474 &((struct sockaddr_in6 *)mask)->sin6_addr); 475 else { 476 cp = netname6(sa6, NULL); 477 } 478 break; 479 } 480#endif /*INET6*/ 481 482 case AF_IPX: 483 { 484 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 485 if (ipx_nullnet(satoipx_addr(work))) 486 cp = "default"; 487 else 488 cp = ipx_print(sa); 489 break; 490 } 491 case AF_APPLETALK: 492 { 493 if (!(flags & RTF_HOST) && mask) 494 cp = atalk_print2(sa,mask,9); 495 else 496 cp = atalk_print(sa,11); 497 break; 498 } 499 case AF_NETGRAPH: 500 { 501 printf("%s", ((struct sockaddr_ng *)sa)->sg_data); 502 break; 503 } 504#ifdef NS 505 case AF_NS: 506 cp = ns_print(sa); 507 break; 508#endif 509 510 case AF_LINK: 511 { 512 register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 513 514 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 515 sdl->sdl_slen == 0) 516 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 517 else 518 switch (sdl->sdl_type) { 519 520 case IFT_ETHER: 521 { 522 register int i; 523 register u_char *lla = (u_char *)sdl->sdl_data + 524 sdl->sdl_nlen; 525 526 cplim = ""; 527 for (i = 0; i < sdl->sdl_alen; i++, lla++) { 528 cp += sprintf(cp, "%s%x", cplim, *lla); 529 cplim = ":"; 530 } 531 cp = workbuf; 532 break; 533 } 534 535 default: 536 cp = link_ntoa(sdl); 537 break; 538 } 539 break; 540 } 541 542 default: 543 { 544 register u_char *s = (u_char *)sa->sa_data, *slim; 545 546 slim = sa->sa_len + (u_char *) sa; 547 cplim = cp + sizeof(workbuf) - 6; 548 cp += sprintf(cp, "(%d)", sa->sa_family); 549 while (s < slim && cp < cplim) { 550 cp += sprintf(cp, " %02x", *s++); 551 if (s < slim) 552 cp += sprintf(cp, "%02x", *s++); 553 } 554 cp = workbuf; 555 } 556 } 557 if (width < 0 ) 558 printf("%s ", cp); 559 else { 560 if (nflag) 561 printf("%-*s ", width, cp); 562 else 563 printf("%-*.*s ", width, width, cp); 564 } 565} 566 567static void 568p_flags(f, format) 569 register int f; 570 char *format; 571{ 572 char name[33], *flags; 573 register struct bits *p = bits; 574 575 for (flags = name; p->b_mask; p++) 576 if (p->b_mask & f) 577 *flags++ = p->b_val; 578 *flags = '\0'; 579 printf(format, name); 580} 581 582static void 583p_rtentry(rt) 584 register struct rtentry *rt; 585{ 586 static struct ifnet ifnet, *lastif; 587 static char name[16]; 588 static char prettyname[9]; 589 struct sockaddr *sa; 590 sa_u addr, mask; 591 592 /* 593 * Don't print protocol-cloned routes unless -a. 594 */ 595 if (rt->rt_parent && !aflag) 596 return; 597 598 bzero(&addr, sizeof(addr)); 599 if ((sa = kgetsa(rt_key(rt)))) 600 bcopy(sa, &addr, sa->sa_len); 601 bzero(&mask, sizeof(mask)); 602 if (rt_mask(rt) && (sa = kgetsa(rt_mask(rt)))) 603 bcopy(sa, &mask, sa->sa_len); 604 p_sockaddr(&addr.u_sa, &mask.u_sa, rt->rt_flags, 605#ifdef INET6 606 addr.u_sa.sa_family == AF_INET6 ? WID_DST6 : 607#endif 608 WID_DST); 609 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, 610#ifdef INET6 611 addr.u_sa.sa_family == AF_INET6 ? WID_GW6 : 612#endif 613 WID_GW); 614 p_flags(rt->rt_flags, "%-6.6s "); 615 if (addr.u_sa.sa_family == AF_INET || lflag) 616 printf("%6ld %8ld ", rt->rt_refcnt, rt->rt_use); 617 if (rt->rt_ifp) { 618 if (rt->rt_ifp != lastif) { 619 kget(rt->rt_ifp, ifnet); 620 kread((u_long)ifnet.if_name, name, 16); 621 lastif = rt->rt_ifp; 622 snprintf(prettyname, sizeof prettyname, 623 "%s%d", name, ifnet.if_unit); 624 } 625 printf("%8.8s", prettyname); 626 if (rt->rt_rmx.rmx_expire) { 627 time_t expire_time; 628 629 if ((expire_time = 630 rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0) 631 printf(" %6d%s", (int)expire_time, 632 rt->rt_nodes[0].rn_dupedkey ? " =>" : ""); 633 else 634 goto ifandkey; 635 } else if (rt->rt_nodes[0].rn_dupedkey) { 636ifandkey:; 637 printf(" =>"); 638 } 639 640 } 641 putchar('\n'); 642} 643 644char * 645routename(in) 646 u_long in; 647{ 648 register char *cp; 649 static char line[MAXHOSTNAMELEN + 1]; 650 struct hostent *hp; 651 652 cp = 0; 653 if (!nflag) { 654 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 655 AF_INET); 656 if (hp) { 657 cp = hp->h_name; 658 trimdomain(cp); 659 } 660 } 661 if (cp) { 662 strncpy(line, cp, sizeof(line) - 1); 663 line[sizeof(line) - 1] = '\0'; 664 } else { 665#define C(x) ((x) & 0xff) 666 in = ntohl(in); 667 sprintf(line, "%lu.%lu.%lu.%lu", 668 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 669 } 670 return (line); 671} 672 673static u_long 674forgemask(a) 675 u_long a; 676{ 677 u_long m; 678 679 if (IN_CLASSA(a)) 680 m = IN_CLASSA_NET; 681 else if (IN_CLASSB(a)) 682 m = IN_CLASSB_NET; 683 else 684 m = IN_CLASSC_NET; 685 return (m); 686} 687 688static void 689domask(dst, addr, mask) 690 char *dst; 691 u_long addr, mask; 692{ 693 register int b, i; 694 695 if (!mask || (forgemask(addr) == mask)) { 696 *dst = '\0'; 697 return; 698 } 699 i = 0; 700 for (b = 0; b < 32; b++) 701 if (mask & (1 << b)) { 702 register int bb; 703 704 i = b; 705 for (bb = b+1; bb < 32; bb++) 706 if (!(mask & (1 << bb))) { 707 i = -1; /* noncontig */ 708 break; 709 } 710 break; 711 } 712 if (i == -1) 713 sprintf(dst, "&0x%lx", mask); 714 else 715 sprintf(dst, "/%d", 32-i); 716} 717 718/* 719 * Return the name of the network whose address is given. 720 * The address is assumed to be that of a net or subnet, not a host. 721 */ 722char * 723netname(in, mask) 724 u_long in, mask; 725{ 726 char *cp = 0; 727 static char line[MAXHOSTNAMELEN + 1]; 728 struct netent *np = 0; 729 u_long net, omask, dmask; 730 register u_long i; 731 732 i = ntohl(in); 733 omask = mask; 734 if (!nflag && i) { 735 dmask = forgemask(i); 736 net = i & dmask; 737 if (!(np = getnetbyaddr(i, AF_INET)) && net != i) 738 np = getnetbyaddr(net, AF_INET); 739 if (np) { 740 cp = np->n_name; 741 trimdomain(cp); 742 } 743 } 744 if (cp) 745 strncpy(line, cp, sizeof(line) - 1); 746 else if ((i & 0xffffff) == 0) 747 sprintf(line, "%lu", C(i >> 24)); 748 else if ((i & 0xffff) == 0) 749 sprintf(line, "%lu.%lu", C(i >> 24) , C(i >> 16)); 750 else if ((i & 0xff) == 0) 751 sprintf(line, "%lu.%lu.%lu", C(i >> 24), C(i >> 16), C(i >> 8)); 752 else 753 sprintf(line, "%lu.%lu.%lu.%lu", C(i >> 24), 754 C(i >> 16), C(i >> 8), C(i)); 755 domask(line+strlen(line), i, omask); 756 return (line); 757} 758 759#ifdef INET6 760char * 761netname6(sa6, mask) 762 struct sockaddr_in6 *sa6; 763 struct in6_addr *mask; 764{ 765 static char line[MAXHOSTNAMELEN + 1]; 766 u_char *p = (u_char *)mask; 767 u_char *lim; 768 int masklen, illegal = 0; 769 int flag = NI_WITHSCOPEID; 770 771 if (mask) { 772 for (masklen = 0, lim = p + 16; p < lim; p++) { 773 if (*p == 0xff) 774 masklen += 8; 775 else 776 break; 777 } 778 if (p < lim) { 779 switch (*p) { 780 case 0xfe: 781 masklen += 7; 782 break; 783 case 0xfc: 784 masklen += 6; 785 break; 786 case 0xf8: 787 masklen += 5; 788 break; 789 case 0xf0: 790 masklen += 4; 791 break; 792 case 0xe0: 793 masklen += 3; 794 break; 795 case 0xc0: 796 masklen += 2; 797 break; 798 case 0x80: 799 masklen += 1; 800 break; 801 case 0x00: 802 break; 803 default: 804 illegal ++; 805 break; 806 } 807 } 808 if (illegal) 809 fprintf(stderr, "illegal prefixlen\n"); 810 } 811 else 812 masklen = 128; 813 814 if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) 815 return("default"); 816 817 if (nflag) 818 flag |= NI_NUMERICHOST; 819 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 820 NULL, 0, flag); 821 822 if (nflag) 823 sprintf(&line[strlen(line)], "/%d", masklen); 824 825 return line; 826} 827 828char * 829routename6(sa6) 830 struct sockaddr_in6 *sa6; 831{ 832 static char line[MAXHOSTNAMELEN + 1]; 833 int flag = NI_WITHSCOPEID; 834 835 if (nflag) 836 flag |= NI_NUMERICHOST; 837 838 getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), 839 NULL, 0, flag); 840 841 return line; 842} 843#endif /*INET6*/ 844 845/* 846 * Print routing statistics 847 */ 848void 849rt_stats(off) 850 u_long off; 851{ 852 struct rtstat rtstat; 853 854 if (off == 0) { 855 printf("rtstat: symbol not in namelist\n"); 856 return; 857 } 858 kread(off, (char *)&rtstat, sizeof (rtstat)); 859 printf("routing:\n"); 860 printf("\t%u bad routing redirect%s\n", 861 rtstat.rts_badredirect, plural(rtstat.rts_badredirect)); 862 printf("\t%u dynamically created route%s\n", 863 rtstat.rts_dynamic, plural(rtstat.rts_dynamic)); 864 printf("\t%u new gateway%s due to redirects\n", 865 rtstat.rts_newgateway, plural(rtstat.rts_newgateway)); 866 printf("\t%u destination%s found unreachable\n", 867 rtstat.rts_unreach, plural(rtstat.rts_unreach)); 868 printf("\t%u use%s of a wildcard route\n", 869 rtstat.rts_wildcard, plural(rtstat.rts_wildcard)); 870} 871 872char * 873ipx_print(sa) 874 register struct sockaddr *sa; 875{ 876 u_short port; 877 struct servent *sp = 0; 878 char *net = "", *host = ""; 879 register char *p; 880 register u_char *q; 881 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 882 static char mybuf[50]; 883 char cport[10], chost[15], cnet[15]; 884 885 port = ntohs(work.x_port); 886 887 if (ipx_nullnet(work) && ipx_nullhost(work)) { 888 889 if (port) { 890 if (sp) 891 sprintf(mybuf, "*.%s", sp->s_name); 892 else 893 sprintf(mybuf, "*.%x", port); 894 } else 895 sprintf(mybuf, "*.*"); 896 897 return (mybuf); 898 } 899 900 if (ipx_wildnet(work)) 901 net = "any"; 902 else if (ipx_nullnet(work)) 903 net = "*"; 904 else { 905 q = work.x_net.c_net; 906 sprintf(cnet, "%02x%02x%02x%02x", 907 q[0], q[1], q[2], q[3]); 908 for (p = cnet; *p == '0' && p < cnet + 8; p++) 909 continue; 910 net = p; 911 } 912 913 if (ipx_wildhost(work)) 914 host = "any"; 915 else if (ipx_nullhost(work)) 916 host = "*"; 917 else { 918 q = work.x_host.c_host; 919 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 920 q[0], q[1], q[2], q[3], q[4], q[5]); 921 for (p = chost; *p == '0' && p < chost + 12; p++) 922 continue; 923 host = p; 924 } 925 926 if (port) { 927 if (strcmp(host, "*") == 0) 928 host = ""; 929 if (sp) 930 snprintf(cport, sizeof(cport), 931 "%s%s", *host ? "." : "", sp->s_name); 932 else 933 snprintf(cport, sizeof(cport), 934 "%s%x", *host ? "." : "", port); 935 } else 936 *cport = 0; 937 938 snprintf(mybuf, sizeof(mybuf), "%s.%s%s", net, host, cport); 939 return(mybuf); 940} 941 942char * 943ipx_phost(sa) 944 struct sockaddr *sa; 945{ 946 register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 947 struct sockaddr_ipx work; 948 static union ipx_net ipx_zeronet; 949 char *p; 950 struct ipx_addr in; 951 952 work = *sipx; 953 in = work.sipx_addr; 954 955 work.sipx_addr.x_port = 0; 956 work.sipx_addr.x_net = ipx_zeronet; 957 p = ipx_print((struct sockaddr *)&work); 958 if (strncmp("*.", p, 2) == 0) p += 2; 959 960 return(p); 961} 962 963#ifdef NS 964short ns_nullh[] = {0,0,0}; 965short ns_bh[] = {-1,-1,-1}; 966 967char * 968ns_print(sa) 969 register struct sockaddr *sa; 970{ 971 register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa; 972 struct ns_addr work; 973 union { union ns_net net_e; u_long long_e; } net; 974 u_short port; 975 static char mybuf[50], cport[10], chost[25]; 976 char *host = ""; 977 register char *p; register u_char *q; 978 979 work = sns->sns_addr; 980 port = ntohs(work.x_port); 981 work.x_port = 0; 982 net.net_e = work.x_net; 983 if (ns_nullhost(work) && net.long_e == 0) { 984 if (port ) { 985 sprintf(mybuf, "*.%xH", port); 986 upHex(mybuf); 987 } else 988 sprintf(mybuf, "*.*"); 989 return (mybuf); 990 } 991 992 if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) { 993 host = "any"; 994 } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) { 995 host = "*"; 996 } else { 997 q = work.x_host.c_host; 998 sprintf(chost, "%02x%02x%02x%02x%02x%02xH", 999 q[0], q[1], q[2], q[3], q[4], q[5]); 1000 for (p = chost; *p == '0' && p < chost + 12; p++) 1001 continue; 1002 host = p; 1003 } 1004 if (port) 1005 sprintf(cport, ".%xH", htons(port)); 1006 else 1007 *cport = 0; 1008 1009 sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport); 1010 upHex(mybuf); 1011 return(mybuf); 1012} 1013 1014char * 1015ns_phost(sa) 1016 struct sockaddr *sa; 1017{ 1018 register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa; 1019 struct sockaddr_ns work; 1020 static union ns_net ns_zeronet; 1021 char *p; 1022 1023 work = *sns; 1024 work.sns_addr.x_port = 0; 1025 work.sns_addr.x_net = ns_zeronet; 1026 1027 p = ns_print((struct sockaddr *)&work); 1028 if (strncmp("0H.", p, 3) == 0) 1029 p += 3; 1030 return(p); 1031} 1032#endif 1033 1034void 1035upHex(p0) 1036 char *p0; 1037{ 1038 register char *p = p0; 1039 1040 for (; *p; p++) 1041 switch (*p) { 1042 1043 case 'a': 1044 case 'b': 1045 case 'c': 1046 case 'd': 1047 case 'e': 1048 case 'f': 1049 *p += ('A' - 'a'); 1050 break; 1051 } 1052} 1053