route.c revision 16080
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 "$Id: route.c,v 1.12 1996/02/16 15:42:14 wollman Exp $"; 40#endif /* not lint */ 41 42#include <sys/param.h> 43#include <sys/protosw.h> 44#include <sys/socket.h> 45#include <sys/mbuf.h> 46 47#include <net/if.h> 48#include <net/if_dl.h> 49#include <net/if_types.h> 50#define KERNEL 51#include <net/route.h> 52#undef KERNEL 53#include <netinet/in.h> 54 55#include <netipx/ipx.h> 56 57#ifdef NS 58#include <netns/ns.h> 59#endif 60 61#include <sys/sysctl.h> 62 63#include <netdb.h> 64#include <stdio.h> 65#include <stdlib.h> 66#include <string.h> 67#include <unistd.h> 68#include <err.h> 69#include <time.h> 70#include "netstat.h" 71 72#define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 73 74/* 75 * Definitions for showing gateway flags. 76 */ 77struct bits { 78 u_long b_mask; 79 char b_val; 80} bits[] = { 81 { RTF_UP, 'U' }, 82 { RTF_GATEWAY, 'G' }, 83 { RTF_HOST, 'H' }, 84 { RTF_REJECT, 'R' }, 85 { RTF_DYNAMIC, 'D' }, 86 { RTF_MODIFIED, 'M' }, 87 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 88 { RTF_MASK, 'm' }, /* Mask Present -- for routing messages only */ 89 { RTF_CLONING, 'C' }, 90 { RTF_XRESOLVE, 'X' }, 91 { RTF_LLINFO, 'L' }, 92 { RTF_STATIC, 'S' }, 93 { RTF_PROTO1, '1' }, 94 { RTF_PROTO2, '2' }, 95 { RTF_WASCLONED,'W' }, 96 { RTF_PRCLONING,'c' }, 97 { RTF_PROTO3, '3' }, 98 { 0 } 99}; 100 101static union { 102 struct sockaddr u_sa; 103 u_short u_data[128]; 104} pt_u; 105 106int do_rtent = 0; 107struct rtentry rtentry; 108struct radix_node rnode; 109struct radix_mask rmask; 110struct radix_node_head *rt_tables[AF_MAX+1]; 111 112int NewTree = 0; 113 114static struct sockaddr *kgetsa __P((struct sockaddr *)); 115static void p_tree __P((struct radix_node *)); 116static void p_rtnode __P(()); 117static void ntreestuff __P(()); 118static void np_rtentry __P((struct rt_msghdr *)); 119static void p_sockaddr __P((struct sockaddr *, struct sockaddr *, int, int)); 120static void p_flags __P((int, char *)); 121static void p_rtentry __P((struct rtentry *)); 122 123/* 124 * Print routing tables. 125 */ 126void 127routepr(rtree) 128 u_long rtree; 129{ 130 struct radix_node_head *rnh, head; 131 int i; 132 133 printf("Routing tables\n"); 134 135 if (Aflag == 0 && NewTree) 136 ntreestuff(); 137 else { 138 if (rtree == 0) { 139 printf("rt_tables: symbol not in namelist\n"); 140 return; 141 } 142 143 kget(rtree, rt_tables); 144 for (i = 0; i <= AF_MAX; i++) { 145 if ((rnh = rt_tables[i]) == 0) 146 continue; 147 kget(rnh, head); 148 if (i == AF_UNSPEC) { 149 if (Aflag && af == 0) { 150 printf("Netmasks:\n"); 151 p_tree(head.rnh_treetop); 152 } 153 } else if (af == AF_UNSPEC || af == i) { 154 pr_family(i); 155 do_rtent = 1; 156 pr_rthdr(); 157 p_tree(head.rnh_treetop); 158 } 159 } 160 } 161} 162 163/* 164 * Print address family header before a section of the routing table. 165 */ 166void 167pr_family(af) 168 int af; 169{ 170 char *afname; 171 172 switch (af) { 173 case AF_INET: 174 afname = "Internet"; 175 break; 176 case AF_IPX: 177 afname = "IPX"; 178 break; 179#ifdef NS 180 case AF_NS: 181 afname = "XNS"; 182 break; 183#endif 184 case AF_ISO: 185 afname = "ISO"; 186 break; 187 case AF_CCITT: 188 afname = "X.25"; 189 break; 190 default: 191 afname = NULL; 192 break; 193 } 194 if (afname) 195 printf("\n%s:\n", afname); 196 else 197 printf("\nProtocol Family %d:\n", af); 198} 199 200/* column widths; each followed by one space */ 201#define WID_DST 18 /* width of destination column */ 202#define WID_GW 18 /* width of gateway column */ 203 204/* 205 * Print header for routing table columns. 206 */ 207void 208pr_rthdr() 209{ 210 if (Aflag) 211 printf("%-8.8s ","Address"); 212 printf("%-*.*s %-*.*s %-6.6s %6.6s%8.8s %8.8s %6s\n", 213 WID_DST, WID_DST, "Destination", 214 WID_GW, WID_GW, "Gateway", 215 "Flags", "Refs", "Use", "Netif", "Expire"); 216} 217 218static struct sockaddr * 219kgetsa(dst) 220 register struct sockaddr *dst; 221{ 222 223 kget(dst, pt_u.u_sa); 224 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 225 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 226 return (&pt_u.u_sa); 227} 228 229static void 230p_tree(rn) 231 struct radix_node *rn; 232{ 233 234again: 235 kget(rn, rnode); 236 if (rnode.rn_b < 0) { 237 if (Aflag) 238 printf("%-8.8x ", (int)rn); 239 if (rnode.rn_flags & RNF_ROOT) { 240 if (Aflag) 241 printf("(root node)%s", 242 rnode.rn_dupedkey ? " =>\n" : "\n"); 243 } else if (do_rtent) { 244 kget(rn, rtentry); 245 p_rtentry(&rtentry); 246 if (Aflag) 247 p_rtnode(); 248 } else { 249 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 250 NULL, 0, 44); 251 putchar('\n'); 252 } 253 if ((rn = rnode.rn_dupedkey)) 254 goto again; 255 } else { 256 if (Aflag && do_rtent) { 257 printf("%-8.8x ", (int)rn); 258 p_rtnode(); 259 } 260 rn = rnode.rn_r; 261 p_tree(rnode.rn_l); 262 p_tree(rn); 263 } 264} 265 266char nbuf[20]; 267 268static void 269p_rtnode() 270{ 271 struct radix_mask *rm = rnode.rn_mklist; 272 273 if (rnode.rn_b < 0) { 274 if (rnode.rn_mask) { 275 printf("\t mask "); 276 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 277 NULL, 0, -1); 278 } else if (rm == 0) 279 return; 280 } else { 281 sprintf(nbuf, "(%d)", rnode.rn_b); 282 printf("%6.6s %8.8x : %8.8x", nbuf, (int)rnode.rn_l, (int)rnode.rn_r); 283 } 284 while (rm) { 285 kget(rm, rmask); 286 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 287 printf(" mk = %8.8x {(%d),%s", 288 (int)rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " "); 289 if (rmask.rm_flags & RNF_NORMAL) { 290 struct radix_node rnode_aux; 291 printf(" <normal>, "); 292 kget(rmask.rm_leaf, rnode_aux); 293 p_sockaddr(kgetsa((struct sockaddr *)rnode_aux.rn_mask), 294 NULL, 0, -1); 295 } else 296 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 297 NULL, 0, -1); 298 putchar('}'); 299 if ((rm = rmask.rm_mklist)) 300 printf(" ->"); 301 } 302 putchar('\n'); 303} 304 305static void 306ntreestuff() 307{ 308 size_t needed; 309 int mib[6]; 310 char *buf, *next, *lim; 311 register struct rt_msghdr *rtm; 312 313 mib[0] = CTL_NET; 314 mib[1] = PF_ROUTE; 315 mib[2] = 0; 316 mib[3] = 0; 317 mib[4] = NET_RT_DUMP; 318 mib[5] = 0; 319 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 320 err(1, "sysctl: net.route.0.0.dump estimate"); 321 } 322 323 if ((buf = malloc(needed)) == 0) { 324 err(2, "malloc(%lu)", (unsigned long)needed); 325 } 326 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 327 err(1, "sysctl: net.route.0.0.dump"); 328 } 329 lim = buf + needed; 330 for (next = buf; next < lim; next += rtm->rtm_msglen) { 331 rtm = (struct rt_msghdr *)next; 332 np_rtentry(rtm); 333 } 334} 335 336static void 337np_rtentry(rtm) 338 register struct rt_msghdr *rtm; 339{ 340 register struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 341#ifdef notdef 342 static int masks_done, banner_printed; 343#endif 344 static int old_af; 345 int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 346 347#ifdef notdef 348 /* for the moment, netmasks are skipped over */ 349 if (!banner_printed) { 350 printf("Netmasks:\n"); 351 banner_printed = 1; 352 } 353 if (masks_done == 0) { 354 if (rtm->rtm_addrs != RTA_DST ) { 355 masks_done = 1; 356 af = sa->sa_family; 357 } 358 } else 359#endif 360 af = sa->sa_family; 361 if (af != old_af) { 362 pr_family(af); 363 old_af = af; 364 } 365 if (rtm->rtm_addrs == RTA_DST) 366 p_sockaddr(sa, NULL, 0, 36); 367 else { 368 p_sockaddr(sa, NULL, rtm->rtm_flags, 16); 369 if (sa->sa_len == 0) 370 sa->sa_len = sizeof(long); 371 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 372 p_sockaddr(sa, NULL, 0, 18); 373 } 374 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 375 putchar('\n'); 376} 377 378static void 379p_sockaddr(sa, mask, flags, width) 380 struct sockaddr *sa, *mask; 381 int flags, width; 382{ 383 char workbuf[128], *cplim; 384 register char *cp = workbuf; 385 386 switch(sa->sa_family) { 387 case AF_INET: 388 { 389 register struct sockaddr_in *sin = (struct sockaddr_in *)sa; 390 391 if (sin->sin_addr.s_addr == INADDR_ANY) 392 cp = "default"; 393 else if (flags & RTF_HOST) 394 cp = routename(sin->sin_addr.s_addr); 395 else if (mask) 396 cp = netname(sin->sin_addr.s_addr, 397 ntohl(((struct sockaddr_in *)mask) 398 ->sin_addr.s_addr)); 399 else 400 cp = netname(sin->sin_addr.s_addr, 0L); 401 break; 402 } 403 404 case AF_IPX: 405 { 406 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 407 if (ipx_nullnet(satoipx_addr(work))) 408 cp = "default"; 409 else 410 cp = ipx_print(sa); 411 break; 412 } 413 414#ifdef NS 415 case AF_NS: 416 cp = ns_print(sa); 417 break; 418#endif 419 420 case AF_LINK: 421 { 422 register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 423 424 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 425 sdl->sdl_slen == 0) 426 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 427 else switch (sdl->sdl_type) { 428 case IFT_ETHER: 429 { 430 register int i; 431 register u_char *lla = (u_char *)sdl->sdl_data + 432 sdl->sdl_nlen; 433 434 cplim = ""; 435 for (i = 0; i < sdl->sdl_alen; i++, lla++) { 436 cp += sprintf(cp, "%s%x", cplim, *lla); 437 cplim = ":"; 438 } 439 cp = workbuf; 440 break; 441 } 442 default: 443 cp = link_ntoa(sdl); 444 break; 445 } 446 break; 447 } 448 449 default: 450 { 451 register u_char *s = (u_char *)sa->sa_data, *slim; 452 453 slim = sa->sa_len + (u_char *) sa; 454 cplim = cp + sizeof(workbuf) - 6; 455 cp += sprintf(cp, "(%d)", sa->sa_family); 456 while (s < slim && cp < cplim) { 457 cp += sprintf(cp, " %02x", *s++); 458 if (s < slim) 459 cp += sprintf(cp, "%02x", *s++); 460 } 461 cp = workbuf; 462 } 463 } 464 if (width < 0 ) 465 printf("%s ", cp); 466 else { 467 if (nflag) 468 printf("%-*s ", width, cp); 469 else 470 printf("%-*.*s ", width, width, cp); 471 } 472} 473 474static void 475p_flags(f, format) 476 register int f; 477 char *format; 478{ 479 char name[33], *flags; 480 register struct bits *p = bits; 481 482 for (flags = name; p->b_mask; p++) 483 if (p->b_mask & f) 484 *flags++ = p->b_val; 485 *flags = '\0'; 486 printf(format, name); 487} 488 489static void 490p_rtentry(rt) 491 register struct rtentry *rt; 492{ 493 static struct ifnet ifnet, *lastif; 494 static char name[16]; 495 static char prettyname[9]; 496 struct sockaddr *sa; 497 struct sockaddr addr, mask; 498 499 /* 500 * Don't print protocol-cloned routes unless -a. 501 */ 502 if(rt->rt_parent && !aflag) 503 return; 504 505 if (!(sa = kgetsa(rt_key(rt)))) 506 bzero(&addr, sizeof addr); 507 else 508 addr = *sa; 509 if (!rt_mask(rt) || !(sa = kgetsa(rt_mask(rt)))) 510 bzero(&mask, sizeof mask); 511 else 512 mask = *sa; 513 p_sockaddr(&addr, &mask, rt->rt_flags, WID_DST); 514 p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, WID_GW); 515 p_flags(rt->rt_flags, "%-6.6s "); 516 printf("%6d %8ld ", rt->rt_refcnt, rt->rt_use); 517 if (rt->rt_ifp) { 518 if (rt->rt_ifp != lastif) { 519 kget(rt->rt_ifp, ifnet); 520 kread((u_long)ifnet.if_name, name, 16); 521 lastif = rt->rt_ifp; 522 snprintf(prettyname, sizeof prettyname, 523 "%.6s%d", name, ifnet.if_unit); 524 } 525 if(rt->rt_rmx.rmx_expire) { 526 time_t expire_time; 527 528 if ((expire_time 529 =rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0) 530 printf(" %8.8s %6d%s", prettyname, 531 (int)expire_time, 532 rt->rt_nodes[0].rn_dupedkey ? " =>" : ""); 533 } else { 534 printf(" %8.8s%s", prettyname, 535 rt->rt_nodes[0].rn_dupedkey ? " =>" : ""); 536 } 537 538 } 539 putchar('\n'); 540} 541 542char * 543routename(in) 544 u_long in; 545{ 546 register char *cp; 547 static char line[MAXHOSTNAMELEN + 1]; 548 struct hostent *hp; 549 550 cp = 0; 551 if (!nflag) { 552 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 553 AF_INET); 554 if (hp) { 555 cp = hp->h_name; 556 trimdomain(cp); 557 } 558 } 559 if (cp) 560 strncpy(line, cp, sizeof(line) - 1); 561 else { 562#define C(x) ((x) & 0xff) 563 in = ntohl(in); 564 sprintf(line, "%lu.%lu.%lu.%lu", 565 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 566 } 567 return (line); 568} 569 570static u_long 571forgemask(a) 572 u_long a; 573{ 574 u_long m; 575 576 if (IN_CLASSA(a)) 577 m = IN_CLASSA_NET; 578 else if (IN_CLASSB(a)) 579 m = IN_CLASSB_NET; 580 else 581 m = IN_CLASSC_NET; 582 return (m); 583} 584 585static void 586domask(dst, addr, mask) 587 char *dst; 588 u_long addr, mask; 589{ 590 register int b, i; 591 592 if (!mask || (forgemask(addr) == mask)) { 593 *dst = '\0'; 594 return; 595 } 596 i = 0; 597 for (b = 0; b < 32; b++) 598 if (mask & (1 << b)) { 599 register int bb; 600 601 i = b; 602 for (bb = b+1; bb < 32; bb++) 603 if (!(mask & (1 << bb))) { 604 i = -1; /* noncontig */ 605 break; 606 } 607 break; 608 } 609 if (i == -1) 610 sprintf(dst, "&0x%lx", mask); 611 else 612 sprintf(dst, "/%d", 32-i); 613} 614 615/* 616 * Return the name of the network whose address is given. 617 * The address is assumed to be that of a net or subnet, not a host. 618 */ 619char * 620netname(in, mask) 621 u_long in, mask; 622{ 623 char *cp = 0; 624 static char line[MAXHOSTNAMELEN + 1]; 625 struct netent *np = 0; 626 u_long net, omask; 627 register u_long i; 628 int subnetshift; 629 630 i = ntohl(in); 631 omask = mask; 632 if (!nflag && i) { 633 if (mask == 0) { 634 switch (mask = forgemask(i)) { 635 case IN_CLASSA_NET: 636 subnetshift = 8; 637 break; 638 case IN_CLASSB_NET: 639 subnetshift = 8; 640 break; 641 case IN_CLASSC_NET: 642 subnetshift = 4; 643 break; 644 default: 645 abort(); 646 } 647 /* 648 * If there are more bits than the standard mask 649 * would suggest, subnets must be in use. 650 * Guess at the subnet mask, assuming reasonable 651 * width subnet fields. 652 */ 653 while (i &~ mask) 654 mask = (long)mask >> subnetshift; 655 } 656 net = i & mask; 657 while ((mask & 1) == 0) 658 mask >>= 1, net >>= 1; 659 if (!(np = getnetbyaddr(i, AF_INET))) 660 np = getnetbyaddr(net, AF_INET); 661 if (np) { 662 cp = np->n_name; 663 trimdomain(cp); 664 } 665 } 666 if (cp) 667 strncpy(line, cp, sizeof(line) - 1); 668 else if ((i & 0xffffff) == 0) 669 sprintf(line, "%lu", C(i >> 24)); 670 else if ((i & 0xffff) == 0) 671 sprintf(line, "%lu.%lu", C(i >> 24) , C(i >> 16)); 672 else if ((i & 0xff) == 0) 673 sprintf(line, "%lu.%lu.%lu", C(i >> 24), C(i >> 16), C(i >> 8)); 674 else 675 sprintf(line, "%lu.%lu.%lu.%lu", C(i >> 24), 676 C(i >> 16), C(i >> 8), C(i)); 677 domask(line+strlen(line), i, omask); 678 return (line); 679} 680 681/* 682 * Print routing statistics 683 */ 684void 685rt_stats(off) 686 u_long off; 687{ 688 struct rtstat rtstat; 689 690 if (off == 0) { 691 printf("rtstat: symbol not in namelist\n"); 692 return; 693 } 694 kread(off, (char *)&rtstat, sizeof (rtstat)); 695 printf("routing:\n"); 696 printf("\t%u bad routing redirect%s\n", 697 rtstat.rts_badredirect, plural(rtstat.rts_badredirect)); 698 printf("\t%u dynamically created route%s\n", 699 rtstat.rts_dynamic, plural(rtstat.rts_dynamic)); 700 printf("\t%u new gateway%s due to redirects\n", 701 rtstat.rts_newgateway, plural(rtstat.rts_newgateway)); 702 printf("\t%u destination%s found unreachable\n", 703 rtstat.rts_unreach, plural(rtstat.rts_unreach)); 704 printf("\t%u use%s of a wildcard route\n", 705 rtstat.rts_wildcard, plural(rtstat.rts_wildcard)); 706} 707 708char * 709ipx_print(sa) 710 register struct sockaddr *sa; 711{ 712 u_short port; 713 struct netent *np = 0; 714 struct hostent *hp = 0; 715 struct servent *sp = 0; 716 char *net = "", *host = ""; 717 register char *p; register u_char *q; 718 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 719static char mybuf[50]; 720 char cport[10], chost[15], cnet[15]; 721 722 if(!nflag) 723 sp = getservbyport(work.x_port, "ipx"); 724 port = ntohs(work.x_port); 725 726 if (ipx_nullnet(work) && ipx_nullhost(work)) { 727 728 if (port) { 729 if (sp) sprintf(mybuf, "*.%s", sp->s_name); 730 else sprintf(mybuf, "*.%x", port); 731 } else 732 sprintf(mybuf, "*.*"); 733 734 return (mybuf); 735 } 736 737 if (!nflag && (np = getnetbyaddr(*(u_long *)&work.x_net, AF_IPX))) 738 net = np->n_name; 739 else if (ipx_wildnet(work)) 740 net = "any"; 741 else if (ipx_nullnet(work)) 742 net = "*"; 743 else { 744 q = work.x_net.c_net; 745 sprintf(cnet, "%02x%02x%02x%02x", 746 q[0], q[1], q[2], q[3]); 747 for (p = cnet; *p == '0' && p < cnet + 8; p++) 748 continue; 749 net = p; 750 } 751 752 if (!nflag && (hp = gethostbyaddr((char *)&work.x_host, 6, AF_IPX))) 753 host = hp->h_name; 754 else if (ipx_wildhost(work)) 755 host = "any"; 756 else if (ipx_nullhost(work)) 757 host = "*"; 758 else { 759 q = work.x_host.c_host; 760 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 761 q[0], q[1], q[2], q[3], q[4], q[5]); 762 for (p = chost; *p == '0' && p < chost + 12; p++) 763 continue; 764 host = p; 765 } 766 767 if (port) { 768 if (strcmp(host, "*") == 0) host = ""; 769 if (sp) sprintf(cport, "%s%s", *host ? "." : "", sp->s_name); 770 else sprintf(cport, "%s%x", *host ? "." : "", port); 771 } else 772 *cport = 0; 773 774 sprintf(mybuf,"%s.%s%s", net, host, cport); 775 return(mybuf); 776} 777 778char * 779ipx_phost(sa) 780 struct sockaddr *sa; 781{ 782 register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 783 struct sockaddr_ipx work; 784static union ipx_net ipx_zeronet; 785 char *p; 786 struct ipx_addr in; 787 struct hostent *hp; 788 789 work = *sipx; 790 in = work.sipx_addr; 791 792 hp = gethostbyaddr((char *)&in, sizeof(struct ipx_addr), AF_IPX); 793 if (hp) return (hp->h_name); 794 795 work.sipx_addr.x_port = 0; 796 work.sipx_addr.x_net = ipx_zeronet; 797 p = ipx_print((struct sockaddr *)&work); 798 if (strncmp("*.", p, 2) == 0) p += 2; 799 800 return(p); 801} 802 803#ifdef NS 804short ns_nullh[] = {0,0,0}; 805short ns_bh[] = {-1,-1,-1}; 806 807char * 808ns_print(sa) 809 register struct sockaddr *sa; 810{ 811 register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa; 812 struct ns_addr work; 813 union { union ns_net net_e; u_long long_e; } net; 814 u_short port; 815 static char mybuf[50], cport[10], chost[25]; 816 char *host = ""; 817 register char *p; register u_char *q; 818 819 work = sns->sns_addr; 820 port = ntohs(work.x_port); 821 work.x_port = 0; 822 net.net_e = work.x_net; 823 if (ns_nullhost(work) && net.long_e == 0) { 824 if (port ) { 825 sprintf(mybuf, "*.%xH", port); 826 upHex(mybuf); 827 } else 828 sprintf(mybuf, "*.*"); 829 return (mybuf); 830 } 831 832 if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) { 833 host = "any"; 834 } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) { 835 host = "*"; 836 } else { 837 q = work.x_host.c_host; 838 sprintf(chost, "%02x%02x%02x%02x%02x%02xH", 839 q[0], q[1], q[2], q[3], q[4], q[5]); 840 for (p = chost; *p == '0' && p < chost + 12; p++) 841 continue; 842 host = p; 843 } 844 if (port) 845 sprintf(cport, ".%xH", htons(port)); 846 else 847 *cport = 0; 848 849 sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport); 850 upHex(mybuf); 851 return(mybuf); 852} 853 854char * 855ns_phost(sa) 856 struct sockaddr *sa; 857{ 858 register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa; 859 struct sockaddr_ns work; 860 static union ns_net ns_zeronet; 861 char *p; 862 863 work = *sns; 864 work.sns_addr.x_port = 0; 865 work.sns_addr.x_net = ns_zeronet; 866 867 p = ns_print((struct sockaddr *)&work); 868 if (strncmp("0H.", p, 3) == 0) p += 3; 869 return(p); 870} 871#endif 872 873void 874upHex(p0) 875 char *p0; 876{ 877 register char *p = p0; 878 for (; *p; p++) switch (*p) { 879 880 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': 881 *p += ('A' - 'a'); 882 } 883} 884