route.c revision 12632
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 8.3 (Berkeley) 3/9/94"; 37#endif 38static const char rcsid[] = 39 "$Id: route.c,v 1.7 1995/10/26 20:31:59 julian 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#include <netns/ns.h> 58 59#include <sys/sysctl.h> 60 61#include <netdb.h> 62#include <stdio.h> 63#include <stdlib.h> 64#include <string.h> 65#include <unistd.h> 66#include <err.h> 67#include <time.h> 68#include "netstat.h" 69 70#define kget(p, d) (kread((u_long)(p), (char *)&(d), sizeof (d))) 71 72/* 73 * Definitions for showing gateway flags. 74 */ 75struct bits { 76 u_long b_mask; 77 char b_val; 78} bits[] = { 79 { RTF_UP, 'U' }, 80 { RTF_GATEWAY, 'G' }, 81 { RTF_HOST, 'H' }, 82 { RTF_REJECT, 'R' }, 83 { RTF_DYNAMIC, 'D' }, 84 { RTF_MODIFIED, 'M' }, 85 { RTF_DONE, 'd' }, /* Completed -- for routing messages only */ 86 { RTF_MASK, 'm' }, /* Mask Present -- for routing messages only */ 87 { RTF_CLONING, 'C' }, 88 { RTF_XRESOLVE, 'X' }, 89 { RTF_LLINFO, 'L' }, 90 { RTF_STATIC, 'S' }, 91 { RTF_PROTO1, '1' }, 92 { RTF_PROTO2, '2' }, 93 { RTF_WASCLONED,'W' }, 94 { RTF_PRCLONING,'c' }, 95 { RTF_PROTO3, '3' }, 96 { 0 } 97}; 98 99static union { 100 struct sockaddr u_sa; 101 u_short u_data[128]; 102} pt_u; 103 104int do_rtent = 0; 105struct rtentry rtentry; 106struct radix_node rnode; 107struct radix_mask rmask; 108struct radix_node_head *rt_tables[AF_MAX+1]; 109 110int NewTree = 0; 111 112static struct sockaddr *kgetsa __P((struct sockaddr *)); 113static void p_tree __P((struct radix_node *)); 114static void p_rtnode __P(()); 115static void ntreestuff __P(()); 116static void np_rtentry __P((struct rt_msghdr *)); 117static void p_sockaddr __P((struct sockaddr *, int, int)); 118static void p_flags __P((int, char *)); 119static void p_rtentry __P((struct rtentry *)); 120 121/* 122 * Print routing tables. 123 */ 124void 125routepr(rtree) 126 u_long rtree; 127{ 128 struct radix_node_head *rnh, head; 129 int i; 130 131 printf("Routing tables\n"); 132 133 if (Aflag == 0 && NewTree) 134 ntreestuff(); 135 else { 136 if (rtree == 0) { 137 printf("rt_tables: symbol not in namelist\n"); 138 return; 139 } 140 141 kget(rtree, rt_tables); 142 for (i = 0; i <= AF_MAX; i++) { 143 if ((rnh = rt_tables[i]) == 0) 144 continue; 145 kget(rnh, head); 146 if (i == AF_UNSPEC) { 147 if (Aflag && af == 0) { 148 printf("Netmasks:\n"); 149 p_tree(head.rnh_treetop); 150 } 151 } else if (af == AF_UNSPEC || af == i) { 152 pr_family(i); 153 do_rtent = 1; 154 pr_rthdr(); 155 p_tree(head.rnh_treetop); 156 } 157 } 158 } 159} 160 161/* 162 * Print address family header before a section of the routing table. 163 */ 164void 165pr_family(af) 166 int af; 167{ 168 char *afname; 169 170 switch (af) { 171 case AF_INET: 172 afname = "Internet"; 173 break; 174 case AF_IPX: 175 afname = "IPX"; 176 break; 177 case AF_NS: 178 afname = "XNS"; 179 break; 180 case AF_ISO: 181 afname = "ISO"; 182 break; 183 case AF_CCITT: 184 afname = "X.25"; 185 break; 186 default: 187 afname = NULL; 188 break; 189 } 190 if (afname) 191 printf("\n%s:\n", afname); 192 else 193 printf("\nProtocol Family %d:\n", af); 194} 195 196/* column widths; each followed by one space */ 197#define WID_DST 16 /* width of destination column */ 198#define WID_GW 18 /* width of gateway column */ 199 200/* 201 * Print header for routing table columns. 202 */ 203void 204pr_rthdr() 205{ 206 if (Aflag) 207 printf("%-8.8s ","Address"); 208 printf("%-*.*s %-*.*s %-6.6s %6.6s%8.8s %8.8s %6s\n", 209 WID_DST, WID_DST, "Destination", 210 WID_GW, WID_GW, "Gateway", 211 "Flags", "Refs", "Use", "Netif", "Expire"); 212} 213 214static struct sockaddr * 215kgetsa(dst) 216 register struct sockaddr *dst; 217{ 218 219 kget(dst, pt_u.u_sa); 220 if (pt_u.u_sa.sa_len > sizeof (pt_u.u_sa)) 221 kread((u_long)dst, (char *)pt_u.u_data, pt_u.u_sa.sa_len); 222 return (&pt_u.u_sa); 223} 224 225static void 226p_tree(rn) 227 struct radix_node *rn; 228{ 229 230again: 231 kget(rn, rnode); 232 if (rnode.rn_b < 0) { 233 if (Aflag) 234 printf("%-8.8x ", rn); 235 if (rnode.rn_flags & RNF_ROOT) { 236 if (Aflag) 237 printf("(root node)%s", 238 rnode.rn_dupedkey ? " =>\n" : "\n"); 239 } else if (do_rtent) { 240 kget(rn, rtentry); 241 p_rtentry(&rtentry); 242 if (Aflag) 243 p_rtnode(); 244 } else { 245 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_key), 246 0, 44); 247 putchar('\n'); 248 } 249 if (rn = rnode.rn_dupedkey) 250 goto again; 251 } else { 252 if (Aflag && do_rtent) { 253 printf("%-8.8x ", rn); 254 p_rtnode(); 255 } 256 rn = rnode.rn_r; 257 p_tree(rnode.rn_l); 258 p_tree(rn); 259 } 260} 261 262char nbuf[20]; 263 264static void 265p_rtnode() 266{ 267 struct radix_mask *rm = rnode.rn_mklist; 268 269 if (rnode.rn_b < 0) { 270 if (rnode.rn_mask) { 271 printf("\t mask "); 272 p_sockaddr(kgetsa((struct sockaddr *)rnode.rn_mask), 273 0, -1); 274 } else if (rm == 0) 275 return; 276 } else { 277 sprintf(nbuf, "(%d)", rnode.rn_b); 278 printf("%6.6s %8.8x : %8.8x", nbuf, rnode.rn_l, rnode.rn_r); 279 } 280 while (rm) { 281 kget(rm, rmask); 282 sprintf(nbuf, " %d refs, ", rmask.rm_refs); 283 printf(" mk = %8.8x {(%d),%s", 284 rm, -1 - rmask.rm_b, rmask.rm_refs ? nbuf : " "); 285 p_sockaddr(kgetsa((struct sockaddr *)rmask.rm_mask), 0, -1); 286 putchar('}'); 287 if (rm = rmask.rm_mklist) 288 printf(" ->"); 289 } 290 putchar('\n'); 291} 292 293static void 294ntreestuff() 295{ 296 size_t needed; 297 int mib[6]; 298 char *buf, *next, *lim; 299 register struct rt_msghdr *rtm; 300 301 mib[0] = CTL_NET; 302 mib[1] = PF_ROUTE; 303 mib[2] = 0; 304 mib[3] = 0; 305 mib[4] = NET_RT_DUMP; 306 mib[5] = 0; 307 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 308 err(1, "sysctl: net.route.0.0.dump estimate"); 309 } 310 311 if ((buf = malloc(needed)) == 0) { 312 err(2, "malloc(%lu)", (unsigned long)needed); 313 } 314 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 315 err(1, "sysctl: net.route.0.0.dump"); 316 } 317 lim = buf + needed; 318 for (next = buf; next < lim; next += rtm->rtm_msglen) { 319 rtm = (struct rt_msghdr *)next; 320 np_rtentry(rtm); 321 } 322} 323 324static void 325np_rtentry(rtm) 326 register struct rt_msghdr *rtm; 327{ 328 register struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 329#ifdef notdef 330 static int masks_done, banner_printed; 331#endif 332 static int old_af; 333 int af = 0, interesting = RTF_UP | RTF_GATEWAY | RTF_HOST; 334 335#ifdef notdef 336 /* for the moment, netmasks are skipped over */ 337 if (!banner_printed) { 338 printf("Netmasks:\n"); 339 banner_printed = 1; 340 } 341 if (masks_done == 0) { 342 if (rtm->rtm_addrs != RTA_DST ) { 343 masks_done = 1; 344 af = sa->sa_family; 345 } 346 } else 347#endif 348 af = sa->sa_family; 349 if (af != old_af) { 350 pr_family(af); 351 old_af = af; 352 } 353 if (rtm->rtm_addrs == RTA_DST) 354 p_sockaddr(sa, 0, 36); 355 else { 356 p_sockaddr(sa, rtm->rtm_flags, 16); 357 if (sa->sa_len == 0) 358 sa->sa_len = sizeof(long); 359 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 360 p_sockaddr(sa, 0, 18); 361 } 362 p_flags(rtm->rtm_flags & interesting, "%-6.6s "); 363 putchar('\n'); 364} 365 366static void 367p_sockaddr(sa, flags, width) 368 struct sockaddr *sa; 369 int flags, width; 370{ 371 char workbuf[128], *cplim; 372 register char *cp = workbuf; 373 374 switch(sa->sa_family) { 375 case AF_INET: 376 { 377 register struct sockaddr_in *sin = (struct sockaddr_in *)sa; 378 379 cp = (sin->sin_addr.s_addr == 0) ? "default" : 380 ((flags & RTF_HOST) ? 381 routename(sin->sin_addr.s_addr) : 382 netname(sin->sin_addr.s_addr, 0L)); 383 break; 384 } 385 386 case AF_IPX: 387 { 388 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 389 if (ipx_nullnet(satoipx_addr(work))) 390 cp = "default"; 391 else 392 cp = ipx_print(sa); 393 break; 394 } 395 396 case AF_NS: 397 cp = ns_print(sa); 398 break; 399 400 case AF_LINK: 401 { 402 register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa; 403 404 if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && 405 sdl->sdl_slen == 0) 406 (void) sprintf(workbuf, "link#%d", sdl->sdl_index); 407 else switch (sdl->sdl_type) { 408 case IFT_ETHER: 409 { 410 register int i; 411 register u_char *lla = (u_char *)sdl->sdl_data + 412 sdl->sdl_nlen; 413 414 cplim = ""; 415 for (i = 0; i < sdl->sdl_alen; i++, lla++) { 416 cp += sprintf(cp, "%s%x", cplim, *lla); 417 cplim = ":"; 418 } 419 cp = workbuf; 420 break; 421 } 422 default: 423 cp = link_ntoa(sdl); 424 break; 425 } 426 break; 427 } 428 429 default: 430 { 431 register u_char *s = (u_char *)sa->sa_data, *slim; 432 433 slim = sa->sa_len + (u_char *) sa; 434 cplim = cp + sizeof(workbuf) - 6; 435 cp += sprintf(cp, "(%d)", sa->sa_family); 436 while (s < slim && cp < cplim) { 437 cp += sprintf(cp, " %02x", *s++); 438 if (s < slim) 439 cp += sprintf(cp, "%02x", *s++); 440 } 441 cp = workbuf; 442 } 443 } 444 if (width < 0 ) 445 printf("%s ", cp); 446 else { 447 if (nflag) 448 printf("%-*s ", width, cp); 449 else 450 printf("%-*.*s ", width, width, cp); 451 } 452} 453 454static void 455p_flags(f, format) 456 register int f; 457 char *format; 458{ 459 char name[33], *flags; 460 register struct bits *p = bits; 461 462 for (flags = name; p->b_mask; p++) 463 if (p->b_mask & f) 464 *flags++ = p->b_val; 465 *flags = '\0'; 466 printf(format, name); 467} 468 469static void 470p_rtentry(rt) 471 register struct rtentry *rt; 472{ 473 static struct ifnet ifnet, *lastif; 474 static char name[16]; 475 static char prettyname[9]; 476 477 /* 478 * Don't print protocol-cloned routes unless -a. 479 */ 480 if(rt->rt_parent && !aflag) 481 return; 482 483 p_sockaddr(kgetsa(rt_key(rt)), rt->rt_flags, WID_DST); 484 p_sockaddr(kgetsa(rt->rt_gateway), RTF_HOST, WID_GW); 485 p_flags(rt->rt_flags, "%-6.6s "); 486 printf("%6d %8d ", rt->rt_refcnt, rt->rt_use); 487 if (rt->rt_ifp) { 488 if (rt->rt_ifp != lastif) { 489 kget(rt->rt_ifp, ifnet); 490 kread((u_long)ifnet.if_name, name, 16); 491 lastif = rt->rt_ifp; 492 snprintf(prettyname, sizeof prettyname, 493 "%.6s%d", name, ifnet.if_unit); 494 } 495 if(rt->rt_rmx.rmx_expire) { 496 time_t expire_time; 497 498 if ((expire_time 499 =rt->rt_rmx.rmx_expire - time((time_t *)0)) > 0) 500 printf(" %8.8s %6d%s", prettyname, 501 expire_time, 502 rt->rt_nodes[0].rn_dupedkey ? " =>" : ""); 503 } else { 504 printf(" %8.8s%s", prettyname, 505 rt->rt_nodes[0].rn_dupedkey ? " =>" : ""); 506 } 507 508 } 509 putchar('\n'); 510} 511 512char * 513routename(in) 514 u_long in; 515{ 516 register char *cp; 517 static char line[MAXHOSTNAMELEN + 1]; 518 struct hostent *hp; 519 static char domain[MAXHOSTNAMELEN + 1]; 520 static int first = 1; 521 522 if (first) { 523 first = 0; 524 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 525 (cp = index(domain, '.'))) 526 (void) strcpy(domain, cp + 1); 527 else 528 domain[0] = 0; 529 } 530 cp = 0; 531 if (!nflag) { 532 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 533 AF_INET); 534 if (hp) { 535 if ((cp = index(hp->h_name, '.')) && 536 !strcmp(cp + 1, domain)) 537 *cp = 0; 538 cp = hp->h_name; 539 } 540 } 541 if (cp) 542 strncpy(line, cp, sizeof(line) - 1); 543 else { 544#define C(x) ((x) & 0xff) 545 in = ntohl(in); 546 sprintf(line, "%u.%u.%u.%u", 547 C(in >> 24), C(in >> 16), C(in >> 8), C(in)); 548 } 549 return (line); 550} 551 552/* 553 * Return the name of the network whose address is given. 554 * The address is assumed to be that of a net or subnet, not a host. 555 */ 556char * 557netname(in, mask) 558 u_long in, mask; 559{ 560 char *cp = 0; 561 static char line[MAXHOSTNAMELEN + 1]; 562 struct netent *np = 0; 563 u_long net; 564 register int i; 565 int subnetshift; 566 567 i = ntohl(in); 568 if (!nflag && i) { 569 if (mask == 0) { 570 if (IN_CLASSA(i)) { 571 mask = IN_CLASSA_NET; 572 subnetshift = 8; 573 } else if (IN_CLASSB(i)) { 574 mask = IN_CLASSB_NET; 575 subnetshift = 8; 576 } else { 577 mask = IN_CLASSC_NET; 578 subnetshift = 4; 579 } 580 /* 581 * If there are more bits than the standard mask 582 * would suggest, subnets must be in use. 583 * Guess at the subnet mask, assuming reasonable 584 * width subnet fields. 585 */ 586 while (i &~ mask) 587 mask = (long)mask >> subnetshift; 588 } 589 net = i & mask; 590 while ((mask & 1) == 0) 591 mask >>= 1, net >>= 1; 592 if (!(np = getnetbyaddr(net, AF_INET))) 593 np = getnetbyaddr(i, AF_INET); 594 if (np) 595 cp = np->n_name; 596 } 597 if (cp) 598 strncpy(line, cp, sizeof(line) - 1); 599 else if ((i & 0xffffff) == 0) 600 sprintf(line, "%u", C(i >> 24)); 601 else if ((i & 0xffff) == 0) 602 sprintf(line, "%u.%u", C(i >> 24) , C(i >> 16)); 603 else if ((i & 0xff) == 0) 604 sprintf(line, "%u.%u.%u", C(i >> 24), C(i >> 16), C(i >> 8)); 605 else 606 sprintf(line, "%u.%u.%u.%u", C(i >> 24), 607 C(i >> 16), C(i >> 8), C(i)); 608 return (line); 609} 610 611/* 612 * Print routing statistics 613 */ 614void 615rt_stats(off) 616 u_long off; 617{ 618 struct rtstat rtstat; 619 620 if (off == 0) { 621 printf("rtstat: symbol not in namelist\n"); 622 return; 623 } 624 kread(off, (char *)&rtstat, sizeof (rtstat)); 625 printf("routing:\n"); 626 printf("\t%u bad routing redirect%s\n", 627 rtstat.rts_badredirect, plural(rtstat.rts_badredirect)); 628 printf("\t%u dynamically created route%s\n", 629 rtstat.rts_dynamic, plural(rtstat.rts_dynamic)); 630 printf("\t%u new gateway%s due to redirects\n", 631 rtstat.rts_newgateway, plural(rtstat.rts_newgateway)); 632 printf("\t%u destination%s found unreachable\n", 633 rtstat.rts_unreach, plural(rtstat.rts_unreach)); 634 printf("\t%u use%s of a wildcard route\n", 635 rtstat.rts_wildcard, plural(rtstat.rts_wildcard)); 636} 637 638char * 639ipx_print(sa) 640 register struct sockaddr *sa; 641{ 642 u_short port; 643 struct netent *np = 0; 644 struct hostent *hp = 0; 645 struct servent *sp = 0; 646 char *net = "", *host = ""; 647 register char *p; register u_char *q; 648 struct ipx_addr work = ((struct sockaddr_ipx *)sa)->sipx_addr; 649static char mybuf[50]; 650 char cport[10], chost[15], cnet[15]; 651 652 if(!nflag) 653 sp = getservbyport(work.x_port, "ipx"); 654 port = ntohs(work.x_port); 655 656 if (ipx_nullnet(work) && ipx_nullhost(work)) { 657 658 if (port) { 659 if (sp) sprintf(mybuf, "*.%s", sp->s_name); 660 else sprintf(mybuf, "*.%x", port); 661 } else 662 sprintf(mybuf, "*.*"); 663 664 return (mybuf); 665 } 666 667 if (!nflag && (np = getnetbyaddr(*(u_long *)&work.x_net, AF_IPX))) 668 net = np->n_name; 669 else if (ipx_wildnet(work)) 670 net = "any"; 671 else if (ipx_nullnet(work)) 672 net = "*"; 673 else { 674 q = work.x_net.c_net; 675 sprintf(cnet, "%02x%02x%02x%02x", 676 q[0], q[1], q[2], q[3]); 677 for (p = cnet; *p == '0' && p < cnet + 8; p++) 678 continue; 679 net = p; 680 } 681 682 if (!nflag && (hp = gethostbyaddr((char *)&work.x_host, 6, AF_IPX))) 683 host = hp->h_name; 684 else if (ipx_wildhost(work)) 685 host = "any"; 686 else if (ipx_nullhost(work)) 687 host = "*"; 688 else { 689 q = work.x_host.c_host; 690 sprintf(chost, "%02x%02x%02x%02x%02x%02x", 691 q[0], q[1], q[2], q[3], q[4], q[5]); 692 for (p = chost; *p == '0' && p < chost + 12; p++) 693 continue; 694 host = p; 695 } 696 697 if (port) { 698 if (strcmp(host, "*") == 0) host = ""; 699 if (sp) sprintf(cport, "%s%s", *host ? "." : "", sp->s_name); 700 else sprintf(cport, "%s%x", *host ? "." : "", port); 701 } else 702 *cport = 0; 703 704 sprintf(mybuf,"%s.%s%s", net, host, cport); 705 return(mybuf); 706} 707 708char * 709ipx_phost(sa) 710 struct sockaddr *sa; 711{ 712 register struct sockaddr_ipx *sipx = (struct sockaddr_ipx *)sa; 713 struct sockaddr_ipx work; 714static union ipx_net ipx_zeronet; 715 char *p; 716 struct ipx_addr in; 717 struct hostent *hp; 718 719 work = *sipx; 720 in = work.sipx_addr; 721 722 hp = gethostbyaddr((char *)&in, sizeof(struct ipx_addr), AF_IPX); 723 if (hp) return (hp->h_name); 724 725 work.sipx_addr.x_port = 0; 726 work.sipx_addr.x_net = ipx_zeronet; 727 p = ipx_print((struct sockaddr *)&work); 728 if (strncmp("*.", p, 2) == 0) p += 2; 729 730 return(p); 731} 732 733short ns_nullh[] = {0,0,0}; 734short ns_bh[] = {-1,-1,-1}; 735 736char * 737ns_print(sa) 738 register struct sockaddr *sa; 739{ 740 register struct sockaddr_ns *sns = (struct sockaddr_ns*)sa; 741 struct ns_addr work; 742 union { union ns_net net_e; u_long long_e; } net; 743 u_short port; 744 static char mybuf[50], cport[10], chost[25]; 745 char *host = ""; 746 register char *p; register u_char *q; 747 748 work = sns->sns_addr; 749 port = ntohs(work.x_port); 750 work.x_port = 0; 751 net.net_e = work.x_net; 752 if (ns_nullhost(work) && net.long_e == 0) { 753 if (port ) { 754 sprintf(mybuf, "*.%xH", port); 755 upHex(mybuf); 756 } else 757 sprintf(mybuf, "*.*"); 758 return (mybuf); 759 } 760 761 if (bcmp(ns_bh, work.x_host.c_host, 6) == 0) { 762 host = "any"; 763 } else if (bcmp(ns_nullh, work.x_host.c_host, 6) == 0) { 764 host = "*"; 765 } else { 766 q = work.x_host.c_host; 767 sprintf(chost, "%02x%02x%02x%02x%02x%02xH", 768 q[0], q[1], q[2], q[3], q[4], q[5]); 769 for (p = chost; *p == '0' && p < chost + 12; p++) 770 continue; 771 host = p; 772 } 773 if (port) 774 sprintf(cport, ".%xH", htons(port)); 775 else 776 *cport = 0; 777 778 sprintf(mybuf,"%xH.%s%s", ntohl(net.long_e), host, cport); 779 upHex(mybuf); 780 return(mybuf); 781} 782 783char * 784ns_phost(sa) 785 struct sockaddr *sa; 786{ 787 register struct sockaddr_ns *sns = (struct sockaddr_ns *)sa; 788 struct sockaddr_ns work; 789 static union ns_net ns_zeronet; 790 char *p; 791 792 work = *sns; 793 work.sns_addr.x_port = 0; 794 work.sns_addr.x_net = ns_zeronet; 795 796 p = ns_print((struct sockaddr *)&work); 797 if (strncmp("0H.", p, 3) == 0) p += 3; 798 return(p); 799} 800 801void 802upHex(p0) 803 char *p0; 804{ 805 register char *p = p0; 806 for (; *p; p++) switch (*p) { 807 808 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': 809 *p += ('A' - 'a'); 810 } 811} 812