1 /* BSDI inet.c,v 2.3 1995/10/24 02:19:29 prb Exp */ 2 /*- 3 * SPDX-License-Identifier: BSD-3-Clause 4 * 5 * Copyright (c) 1983, 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #if 0 34 #ifndef lint 35 static char sccsid[] = "@(#)inet6.c 8.4 (Berkeley) 4/20/94"; 36 #endif /* not lint */ 37 #endif 38 39 #include <sys/cdefs.h> 40 __FBSDID("$FreeBSD$"); 41 42 #ifdef INET6 43 #include <sys/param.h> 44 #include <sys/socket.h> 45 #include <sys/socketvar.h> 46 #include <sys/ioctl.h> 47 #include <sys/mbuf.h> 48 #include <sys/protosw.h> 49 50 #include <net/route.h> 51 #include <net/if.h> 52 #include <netinet/in.h> 53 #include <netinet/ip6.h> 54 #include <netinet/icmp6.h> 55 #include <netinet/in_systm.h> 56 #include <netinet6/in6_pcb.h> 57 #include <netinet6/in6_var.h> 58 #include <netinet6/ip6_var.h> 59 #include <netinet6/pim6_var.h> 60 #include <netinet6/raw_ip6.h> 61 62 #include <arpa/inet.h> 63 #include <netdb.h> 64 65 #include <err.h> 66 #include <stdint.h> 67 #include <stdio.h> 68 #include <stdbool.h> 69 #include <errno.h> 70 #include <string.h> 71 #include <unistd.h> 72 #include <libxo/xo.h> 73 #include "netstat.h" 74 75 static char ntop_buf[INET6_ADDRSTRLEN]; 76 77 static const char *ip6nh[] = { 78 "hop by hop", 79 "ICMP", 80 "IGMP", 81 "#3", 82 "IP", 83 "#5", 84 "TCP", 85 "#7", 86 "#8", 87 "#9", 88 "#10", 89 "#11", 90 "#12", 91 "#13", 92 "#14", 93 "#15", 94 "#16", 95 "UDP", 96 "#18", 97 "#19", 98 "#20", 99 "#21", 100 "IDP", 101 "#23", 102 "#24", 103 "#25", 104 "#26", 105 "#27", 106 "#28", 107 "TP", 108 "#30", 109 "#31", 110 "#32", 111 "#33", 112 "#34", 113 "#35", 114 "#36", 115 "#37", 116 "#38", 117 "#39", 118 "#40", 119 "IP6", 120 "#42", 121 "routing", 122 "fragment", 123 "#45", 124 "#46", 125 "#47", 126 "#48", 127 "#49", 128 "ESP", 129 "AH", 130 "#52", 131 "#53", 132 "#54", 133 "#55", 134 "#56", 135 "#57", 136 "ICMP6", 137 "no next header", 138 "destination option", 139 "#61", 140 "mobility", 141 "#63", 142 "#64", 143 "#65", 144 "#66", 145 "#67", 146 "#68", 147 "#69", 148 "#70", 149 "#71", 150 "#72", 151 "#73", 152 "#74", 153 "#75", 154 "#76", 155 "#77", 156 "#78", 157 "#79", 158 "ISOIP", 159 "#81", 160 "#82", 161 "#83", 162 "#84", 163 "#85", 164 "#86", 165 "#87", 166 "#88", 167 "OSPF", 168 "#80", 169 "#91", 170 "#92", 171 "#93", 172 "#94", 173 "#95", 174 "#96", 175 "Ethernet", 176 "#98", 177 "#99", 178 "#100", 179 "#101", 180 "#102", 181 "PIM", 182 "#104", 183 "#105", 184 "#106", 185 "#107", 186 "#108", 187 "#109", 188 "#110", 189 "#111", 190 "#112", 191 "#113", 192 "#114", 193 "#115", 194 "#116", 195 "#117", 196 "#118", 197 "#119", 198 "#120", 199 "#121", 200 "#122", 201 "#123", 202 "#124", 203 "#125", 204 "#126", 205 "#127", 206 "#128", 207 "#129", 208 "#130", 209 "#131", 210 "SCTP", 211 "#133", 212 "#134", 213 "#135", 214 "UDPLite", 215 "#137", 216 "#138", 217 "#139", 218 "#140", 219 "#141", 220 "#142", 221 "#143", 222 "#144", 223 "#145", 224 "#146", 225 "#147", 226 "#148", 227 "#149", 228 "#150", 229 "#151", 230 "#152", 231 "#153", 232 "#154", 233 "#155", 234 "#156", 235 "#157", 236 "#158", 237 "#159", 238 "#160", 239 "#161", 240 "#162", 241 "#163", 242 "#164", 243 "#165", 244 "#166", 245 "#167", 246 "#168", 247 "#169", 248 "#170", 249 "#171", 250 "#172", 251 "#173", 252 "#174", 253 "#175", 254 "#176", 255 "#177", 256 "#178", 257 "#179", 258 "#180", 259 "#181", 260 "#182", 261 "#183", 262 "#184", 263 "#185", 264 "#186", 265 "#187", 266 "#188", 267 "#189", 268 "#180", 269 "#191", 270 "#192", 271 "#193", 272 "#194", 273 "#195", 274 "#196", 275 "#197", 276 "#198", 277 "#199", 278 "#200", 279 "#201", 280 "#202", 281 "#203", 282 "#204", 283 "#205", 284 "#206", 285 "#207", 286 "#208", 287 "#209", 288 "#210", 289 "#211", 290 "#212", 291 "#213", 292 "#214", 293 "#215", 294 "#216", 295 "#217", 296 "#218", 297 "#219", 298 "#220", 299 "#221", 300 "#222", 301 "#223", 302 "#224", 303 "#225", 304 "#226", 305 "#227", 306 "#228", 307 "#229", 308 "#230", 309 "#231", 310 "#232", 311 "#233", 312 "#234", 313 "#235", 314 "#236", 315 "#237", 316 "#238", 317 "#239", 318 "#240", 319 "#241", 320 "#242", 321 "#243", 322 "#244", 323 "#245", 324 "#246", 325 "#247", 326 "#248", 327 "#249", 328 "#250", 329 "#251", 330 "#252", 331 "#253", 332 "#254", 333 "#255", 334 }; 335 336 static const char *srcrule_str[] = { 337 "first candidate", 338 "same address", 339 "appropriate scope", 340 "deprecated address", 341 "home address", 342 "outgoing interface", 343 "matching label", 344 "public/temporary address", 345 "alive interface", 346 "better virtual status", 347 "preferred source", 348 "rule #11", 349 "rule #12", 350 "rule #13", 351 "longest match", 352 "rule #15", 353 }; 354 355 /* 356 * Dump IP6 statistics structure. 357 */ 358 void 359 ip6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 360 { 361 struct ip6stat ip6stat; 362 int first, i; 363 364 if (fetch_stats("net.inet6.ip6.stats", off, &ip6stat, 365 sizeof(ip6stat), kread_counters) != 0) 366 return; 367 368 xo_open_container(name); 369 xo_emit("{T:/%s}:\n", name); 370 371 #define p(f, m) if (ip6stat.f || sflag <= 1) \ 372 xo_emit(m, (uintmax_t)ip6stat.f, plural(ip6stat.f)) 373 #define p1a(f, m) if (ip6stat.f || sflag <= 1) \ 374 xo_emit(m, (uintmax_t)ip6stat.f) 375 376 p(ip6s_total, "\t{:received-packets/%ju} " 377 "{N:/total packet%s received}\n"); 378 p1a(ip6s_toosmall, "\t{:dropped-below-minimum-size/%ju} " 379 "{N:/with size smaller than minimum}\n"); 380 p1a(ip6s_tooshort, "\t{:dropped-short-packets/%ju} " 381 "{N:/with data size < data length}\n"); 382 p1a(ip6s_badoptions, "\t{:dropped-bad-options/%ju} " 383 "{N:/with bad options}\n"); 384 p1a(ip6s_badvers, "\t{:dropped-bad-version/%ju} " 385 "{N:/with incorrect version number}\n"); 386 p(ip6s_fragments, "\t{:received-fragments/%ju} " 387 "{N:/fragment%s received}\n"); 388 p(ip6s_fragdropped, "\t{:dropped-fragment/%ju} " 389 "{N:/fragment%s dropped (dup or out of space)}\n"); 390 p(ip6s_fragtimeout, "\t{:dropped-fragment-after-timeout/%ju} " 391 "{N:/fragment%s dropped after timeout}\n"); 392 p(ip6s_fragoverflow, "\t{:dropped-fragments-overflow/%ju} " 393 "{N:/fragment%s that exceeded limit}\n"); 394 p(ip6s_reassembled, "\t{:reassembled-packets/%ju} " 395 "{N:/packet%s reassembled ok}\n"); 396 p(ip6s_delivered, "\t{:received-local-packets/%ju} " 397 "{N:/packet%s for this host}\n"); 398 p(ip6s_forward, "\t{:forwarded-packets/%ju} " 399 "{N:/packet%s forwarded}\n"); 400 p(ip6s_cantforward, "\t{:packets-not-forwardable/%ju} " 401 "{N:/packet%s not forwardable}\n"); 402 p(ip6s_redirectsent, "\t{:sent-redirects/%ju} " 403 "{N:/redirect%s sent}\n"); 404 p(ip6s_localout, "\t{:sent-packets/%ju} " 405 "{N:/packet%s sent from this host}\n"); 406 p(ip6s_rawout, "\t{:send-packets-fabricated-header/%ju} " 407 "{N:/packet%s sent with fabricated ip header}\n"); 408 p(ip6s_odropped, "\t{:discard-no-mbufs/%ju} " 409 "{N:/output packet%s dropped due to no bufs, etc.}\n"); 410 p(ip6s_noroute, "\t{:discard-no-route/%ju} " 411 "{N:/output packet%s discarded due to no route}\n"); 412 p(ip6s_fragmented, "\t{:sent-fragments/%ju} " 413 "{N:/output datagram%s fragmented}\n"); 414 p(ip6s_ofragments, "\t{:fragments-created/%ju} " 415 "{N:/fragment%s created}\n"); 416 p(ip6s_cantfrag, "\t{:discard-cannot-fragment/%ju} " 417 "{N:/datagram%s that can't be fragmented}\n"); 418 p(ip6s_badscope, "\t{:discard-scope-violations/%ju} " 419 "{N:/packet%s that violated scope rules}\n"); 420 p(ip6s_notmember, "\t{:multicast-no-join-packets/%ju} " 421 "{N:/multicast packet%s which we don't join}\n"); 422 for (first = 1, i = 0; i < IP6S_HDRCNT; i++) 423 if (ip6stat.ip6s_nxthist[i] != 0) { 424 if (first) { 425 xo_emit("\t{T:Input histogram}:\n"); 426 xo_open_list("input-histogram"); 427 first = 0; 428 } 429 xo_open_instance("input-histogram"); 430 xo_emit("\t\t{k:name/%s}: {:count/%ju}\n", ip6nh[i], 431 (uintmax_t)ip6stat.ip6s_nxthist[i]); 432 xo_close_instance("input-histogram"); 433 } 434 if (!first) 435 xo_close_list("input-histogram"); 436 437 xo_open_container("mbuf-statistics"); 438 xo_emit("\t{T:Mbuf statistics}:\n"); 439 xo_emit("\t\t{:one-mbuf/%ju} {N:/one mbuf}\n", 440 (uintmax_t)ip6stat.ip6s_m1); 441 for (first = 1, i = 0; i < IP6S_M2MMAX; i++) { 442 char ifbuf[IFNAMSIZ]; 443 if (ip6stat.ip6s_m2m[i] != 0) { 444 if (first) { 445 xo_emit("\t\t{N:two or more mbuf}:\n"); 446 xo_open_list("mbuf-data"); 447 first = 0; 448 } 449 xo_open_instance("mbuf-data"); 450 xo_emit("\t\t\t{k:name/%s}= {:count/%ju}\n", 451 if_indextoname(i, ifbuf), 452 (uintmax_t)ip6stat.ip6s_m2m[i]); 453 xo_close_instance("mbuf-data"); 454 } 455 } 456 if (!first) 457 xo_close_list("mbuf-data"); 458 xo_emit("\t\t{:one-extra-mbuf/%ju} {N:one ext mbuf}\n", 459 (uintmax_t)ip6stat.ip6s_mext1); 460 xo_emit("\t\t{:two-or-more-extra-mbufs/%ju} " 461 "{N:/two or more ext mbuf}\n", (uintmax_t)ip6stat.ip6s_mext2m); 462 xo_close_container("mbuf-statistics"); 463 464 p(ip6s_exthdrtoolong, "\t{:dropped-header-too-long/%ju} " 465 "{N:/packet%s whose headers are not contiguous}\n"); 466 p(ip6s_nogif, "\t{:discard-tunnel-no-gif/%ju} " 467 "{N:/tunneling packet%s that can't find gif}\n"); 468 p(ip6s_toomanyhdr, "\t{:dropped-too-many-headers/%ju} " 469 "{N:/packet%s discarded because of too many headers}\n"); 470 471 /* for debugging source address selection */ 472 #define PRINT_SCOPESTAT(s,i) do {\ 473 switch(i) { /* XXX hardcoding in each case */\ 474 case 1:\ 475 p(s, "\t\t{ke:name/interface-locals}{:count/%ju} " \ 476 "{N:/interface-local%s}\n"); \ 477 break;\ 478 case 2:\ 479 p(s,"\t\t{ke:name/link-locals}{:count/%ju} " \ 480 "{N:/link-local%s}\n"); \ 481 break;\ 482 case 5:\ 483 p(s,"\t\t{ke:name/site-locals}{:count/%ju} " \ 484 "{N:/site-local%s}\n");\ 485 break;\ 486 case 14:\ 487 p(s,"\t\t{ke:name/globals}{:count/%ju} " \ 488 "{N:/global%s}\n");\ 489 break;\ 490 default:\ 491 xo_emit("\t\t{qke:name/%#x}{:count/%ju} " \ 492 "{N:/addresses scope=%#x}\n",\ 493 i, (uintmax_t)ip6stat.s, i); \ 494 }\ 495 } while (0); 496 497 xo_open_container("source-address-selection"); 498 p(ip6s_sources_none, "\t{:address-selection-failures/%ju} " 499 "{N:/failure%s of source address selection}\n"); 500 501 for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) { 502 if (ip6stat.ip6s_sources_sameif[i]) { 503 if (first) { 504 xo_open_list("outgoing-interface"); 505 xo_emit("\tsource addresses on an outgoing " 506 "I/F\n"); 507 first = 0; 508 } 509 xo_open_instance("outgoing-interface"); 510 PRINT_SCOPESTAT(ip6s_sources_sameif[i], i); 511 xo_close_instance("outgoing-interface"); 512 } 513 } 514 if (!first) 515 xo_close_list("outgoing-interface"); 516 517 for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) { 518 if (ip6stat.ip6s_sources_otherif[i]) { 519 if (first) { 520 xo_open_list("non-outgoing-interface"); 521 xo_emit("\tsource addresses on a non-outgoing " 522 "I/F\n"); 523 first = 0; 524 } 525 xo_open_instance("non-outgoing-interface"); 526 PRINT_SCOPESTAT(ip6s_sources_otherif[i], i); 527 xo_close_instance("non-outgoing-interface"); 528 } 529 } 530 if (!first) 531 xo_close_list("non-outgoing-interface"); 532 533 for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) { 534 if (ip6stat.ip6s_sources_samescope[i]) { 535 if (first) { 536 xo_open_list("same-source"); 537 xo_emit("\tsource addresses of same scope\n"); 538 first = 0; 539 } 540 xo_open_instance("same-source"); 541 PRINT_SCOPESTAT(ip6s_sources_samescope[i], i); 542 xo_close_instance("same-source"); 543 } 544 } 545 if (!first) 546 xo_close_list("same-source"); 547 548 for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) { 549 if (ip6stat.ip6s_sources_otherscope[i]) { 550 if (first) { 551 xo_open_list("different-scope"); 552 xo_emit("\tsource addresses of a different " 553 "scope\n"); 554 first = 0; 555 } 556 xo_open_instance("different-scope"); 557 PRINT_SCOPESTAT(ip6s_sources_otherscope[i], i); 558 xo_close_instance("different-scope"); 559 } 560 } 561 if (!first) 562 xo_close_list("different-scope"); 563 564 for (first = 1, i = 0; i < IP6S_SCOPECNT; i++) { 565 if (ip6stat.ip6s_sources_deprecated[i]) { 566 if (first) { 567 xo_open_list("deprecated-source"); 568 xo_emit("\tdeprecated source addresses\n"); 569 first = 0; 570 } 571 xo_open_instance("deprecated-source"); 572 PRINT_SCOPESTAT(ip6s_sources_deprecated[i], i); 573 xo_close_instance("deprecated-source"); 574 } 575 } 576 if (!first) 577 xo_close_list("deprecated-source"); 578 579 for (first = 1, i = 0; i < IP6S_RULESMAX; i++) { 580 if (ip6stat.ip6s_sources_rule[i]) { 581 if (first) { 582 xo_open_list("rules-applied"); 583 xo_emit("\t{T:Source addresses selection " 584 "rule applied}:\n"); 585 first = 0; 586 } 587 xo_open_instance("rules-applied"); 588 xo_emit("\t\t{ke:name/%s}{:count/%ju} {d:name/%s}\n", 589 srcrule_str[i], 590 (uintmax_t)ip6stat.ip6s_sources_rule[i], 591 srcrule_str[i]); 592 xo_close_instance("rules-applied"); 593 } 594 } 595 if (!first) 596 xo_close_list("rules-applied"); 597 598 xo_close_container("source-address-selection"); 599 600 #undef p 601 #undef p1a 602 xo_close_container(name); 603 } 604 605 /* 606 * Dump IPv6 per-interface statistics based on RFC 2465. 607 */ 608 void 609 ip6_ifstats(char *ifname) 610 { 611 struct in6_ifreq ifr; 612 int s; 613 614 #define p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \ 615 xo_emit(m, (uintmax_t)ifr.ifr_ifru.ifru_stat.f, \ 616 plural(ifr.ifr_ifru.ifru_stat.f)) 617 618 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 619 xo_warn("Warning: socket(AF_INET6)"); 620 return; 621 } 622 623 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 624 if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) { 625 if (errno != EPFNOSUPPORT) 626 xo_warn("Warning: ioctl(SIOCGIFSTAT_IN6)"); 627 goto end; 628 } 629 630 xo_emit("{T:/ip6 on %s}:\n", ifr.ifr_name); 631 632 xo_open_instance("ip6-interface-statistics"); 633 xo_emit("{ke:name/%s}", ifr.ifr_name); 634 635 p(ifs6_in_receive, "\t{:received-packets/%ju} " 636 "{N:/total input datagram%s}\n"); 637 p(ifs6_in_hdrerr, "\t{:dropped-invalid-header/%ju} " 638 "{N:/datagram%s with invalid header received}\n"); 639 p(ifs6_in_toobig, "\t{:dropped-mtu-exceeded/%ju} " 640 "{N:/datagram%s exceeded MTU received}\n"); 641 p(ifs6_in_noroute, "\t{:dropped-no-route/%ju} " 642 "{N:/datagram%s with no route received}\n"); 643 p(ifs6_in_addrerr, "\t{:dropped-invalid-destination/%ju} " 644 "{N:/datagram%s with invalid dst received}\n"); 645 p(ifs6_in_protounknown, "\t{:dropped-unknown-protocol/%ju} " 646 "{N:/datagram%s with unknown proto received}\n"); 647 p(ifs6_in_truncated, "\t{:dropped-truncated/%ju} " 648 "{N:/truncated datagram%s received}\n"); 649 p(ifs6_in_discard, "\t{:dropped-discarded/%ju} " 650 "{N:/input datagram%s discarded}\n"); 651 p(ifs6_in_deliver, "\t{:received-valid-packets/%ju} " 652 "{N:/datagram%s delivered to an upper layer protocol}\n"); 653 p(ifs6_out_forward, "\t{:sent-forwarded/%ju} " 654 "{N:/datagram%s forwarded to this interface}\n"); 655 p(ifs6_out_request, "\t{:sent-packets/%ju} " 656 "{N:/datagram%s sent from an upper layer protocol}\n"); 657 p(ifs6_out_discard, "\t{:discard-packets/%ju} " 658 "{N:/total discarded output datagram%s}\n"); 659 p(ifs6_out_fragok, "\t{:discard-fragments/%ju} " 660 "{N:/output datagram%s fragmented}\n"); 661 p(ifs6_out_fragfail, "\t{:fragments-failed/%ju} " 662 "{N:/output datagram%s failed on fragment}\n"); 663 p(ifs6_out_fragcreat, "\t{:fragments-created/%ju} " 664 "{N:/output datagram%s succeeded on fragment}\n"); 665 p(ifs6_reass_reqd, "\t{:reassembly-required/%ju} " 666 "{N:/incoming datagram%s fragmented}\n"); 667 p(ifs6_reass_ok, "\t{:reassembled-packets/%ju} " 668 "{N:/datagram%s reassembled}\n"); 669 p(ifs6_reass_fail, "\t{:reassembly-failed/%ju} " 670 "{N:/datagram%s failed on reassembly}\n"); 671 p(ifs6_in_mcast, "\t{:received-multicast/%ju} " 672 "{N:/multicast datagram%s received}\n"); 673 p(ifs6_out_mcast, "\t{:sent-multicast/%ju} " 674 "{N:/multicast datagram%s sent}\n"); 675 676 end: 677 xo_close_instance("ip6-interface-statistics"); 678 close(s); 679 680 #undef p 681 } 682 683 static const char *icmp6names[] = { 684 "#0", 685 "unreach", 686 "packet too big", 687 "time exceed", 688 "parameter problem", 689 "#5", 690 "#6", 691 "#7", 692 "#8", 693 "#9", 694 "#10", 695 "#11", 696 "#12", 697 "#13", 698 "#14", 699 "#15", 700 "#16", 701 "#17", 702 "#18", 703 "#19", 704 "#20", 705 "#21", 706 "#22", 707 "#23", 708 "#24", 709 "#25", 710 "#26", 711 "#27", 712 "#28", 713 "#29", 714 "#30", 715 "#31", 716 "#32", 717 "#33", 718 "#34", 719 "#35", 720 "#36", 721 "#37", 722 "#38", 723 "#39", 724 "#40", 725 "#41", 726 "#42", 727 "#43", 728 "#44", 729 "#45", 730 "#46", 731 "#47", 732 "#48", 733 "#49", 734 "#50", 735 "#51", 736 "#52", 737 "#53", 738 "#54", 739 "#55", 740 "#56", 741 "#57", 742 "#58", 743 "#59", 744 "#60", 745 "#61", 746 "#62", 747 "#63", 748 "#64", 749 "#65", 750 "#66", 751 "#67", 752 "#68", 753 "#69", 754 "#70", 755 "#71", 756 "#72", 757 "#73", 758 "#74", 759 "#75", 760 "#76", 761 "#77", 762 "#78", 763 "#79", 764 "#80", 765 "#81", 766 "#82", 767 "#83", 768 "#84", 769 "#85", 770 "#86", 771 "#87", 772 "#88", 773 "#89", 774 "#80", 775 "#91", 776 "#92", 777 "#93", 778 "#94", 779 "#95", 780 "#96", 781 "#97", 782 "#98", 783 "#99", 784 "#100", 785 "#101", 786 "#102", 787 "#103", 788 "#104", 789 "#105", 790 "#106", 791 "#107", 792 "#108", 793 "#109", 794 "#110", 795 "#111", 796 "#112", 797 "#113", 798 "#114", 799 "#115", 800 "#116", 801 "#117", 802 "#118", 803 "#119", 804 "#120", 805 "#121", 806 "#122", 807 "#123", 808 "#124", 809 "#125", 810 "#126", 811 "#127", 812 "echo", 813 "echo reply", 814 "multicast listener query", 815 "MLDv1 listener report", 816 "MLDv1 listener done", 817 "router solicitation", 818 "router advertisement", 819 "neighbor solicitation", 820 "neighbor advertisement", 821 "redirect", 822 "router renumbering", 823 "node information request", 824 "node information reply", 825 "inverse neighbor solicitation", 826 "inverse neighbor advertisement", 827 "MLDv2 listener report", 828 "#144", 829 "#145", 830 "#146", 831 "#147", 832 "#148", 833 "#149", 834 "#150", 835 "#151", 836 "#152", 837 "#153", 838 "#154", 839 "#155", 840 "#156", 841 "#157", 842 "#158", 843 "#159", 844 "#160", 845 "#161", 846 "#162", 847 "#163", 848 "#164", 849 "#165", 850 "#166", 851 "#167", 852 "#168", 853 "#169", 854 "#170", 855 "#171", 856 "#172", 857 "#173", 858 "#174", 859 "#175", 860 "#176", 861 "#177", 862 "#178", 863 "#179", 864 "#180", 865 "#181", 866 "#182", 867 "#183", 868 "#184", 869 "#185", 870 "#186", 871 "#187", 872 "#188", 873 "#189", 874 "#180", 875 "#191", 876 "#192", 877 "#193", 878 "#194", 879 "#195", 880 "#196", 881 "#197", 882 "#198", 883 "#199", 884 "#200", 885 "#201", 886 "#202", 887 "#203", 888 "#204", 889 "#205", 890 "#206", 891 "#207", 892 "#208", 893 "#209", 894 "#210", 895 "#211", 896 "#212", 897 "#213", 898 "#214", 899 "#215", 900 "#216", 901 "#217", 902 "#218", 903 "#219", 904 "#220", 905 "#221", 906 "#222", 907 "#223", 908 "#224", 909 "#225", 910 "#226", 911 "#227", 912 "#228", 913 "#229", 914 "#230", 915 "#231", 916 "#232", 917 "#233", 918 "#234", 919 "#235", 920 "#236", 921 "#237", 922 "#238", 923 "#239", 924 "#240", 925 "#241", 926 "#242", 927 "#243", 928 "#244", 929 "#245", 930 "#246", 931 "#247", 932 "#248", 933 "#249", 934 "#250", 935 "#251", 936 "#252", 937 "#253", 938 "#254", 939 "#255", 940 }; 941 942 /* 943 * Dump ICMP6 statistics. 944 */ 945 void 946 icmp6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 947 { 948 struct icmp6stat icmp6stat; 949 int i, first; 950 951 if (fetch_stats("net.inet6.icmp6.stats", off, &icmp6stat, 952 sizeof(icmp6stat), kread_counters) != 0) 953 return; 954 955 xo_emit("{T:/%s}:\n", name); 956 xo_open_container(name); 957 958 #define p(f, m) if (icmp6stat.f || sflag <= 1) \ 959 xo_emit(m, (uintmax_t)icmp6stat.f, plural(icmp6stat.f)) 960 #define p_5(f, m) if (icmp6stat.f || sflag <= 1) \ 961 xo_emit(m, (uintmax_t)icmp6stat.f) 962 963 p(icp6s_error, "\t{:icmp6-calls/%ju} " 964 "{N:/call%s to icmp6_error}\n"); 965 p(icp6s_canterror, "\t{:errors-not-generated-from-message/%ju} " 966 "{N:/error%s not generated in response to an icmp6 message}\n"); 967 p(icp6s_toofreq, "\t{:errors-discarded-by-rate-limitation/%ju} " 968 "{N:/error%s not generated because of rate limitation}\n"); 969 #define NELEM (int)(sizeof(icmp6stat.icp6s_outhist)/sizeof(icmp6stat.icp6s_outhist[0])) 970 for (first = 1, i = 0; i < NELEM; i++) 971 if (icmp6stat.icp6s_outhist[i] != 0) { 972 if (first) { 973 xo_open_list("output-histogram"); 974 xo_emit("\t{T:Output histogram}:\n"); 975 first = 0; 976 } 977 xo_open_instance("output-histogram"); 978 xo_emit("\t\t{k:name/%s}: {:count/%ju}\n", 979 icmp6names[i], 980 (uintmax_t)icmp6stat.icp6s_outhist[i]); 981 xo_close_instance("output-histogram"); 982 } 983 if (!first) 984 xo_close_list("output-histogram"); 985 #undef NELEM 986 987 p(icp6s_badcode, "\t{:dropped-bad-code/%ju} " 988 "{N:/message%s with bad code fields}\n"); 989 p(icp6s_tooshort, "\t{:dropped-too-short/%ju} " 990 "{N:/message%s < minimum length}\n"); 991 p(icp6s_checksum, "\t{:dropped-bad-checksum/%ju} " 992 "{N:/bad checksum%s}\n"); 993 p(icp6s_badlen, "\t{:dropped-bad-length/%ju} " 994 "{N:/message%s with bad length}\n"); 995 #define NELEM (int)(sizeof(icmp6stat.icp6s_inhist)/sizeof(icmp6stat.icp6s_inhist[0])) 996 for (first = 1, i = 0; i < NELEM; i++) 997 if (icmp6stat.icp6s_inhist[i] != 0) { 998 if (first) { 999 xo_open_list("input-histogram"); 1000 xo_emit("\t{T:Input histogram}:\n"); 1001 first = 0; 1002 } 1003 xo_open_instance("input-histogram"); 1004 xo_emit("\t\t{k:name/%s}: {:count/%ju}\n", 1005 icmp6names[i], 1006 (uintmax_t)icmp6stat.icp6s_inhist[i]); 1007 xo_close_instance("input-histogram"); 1008 } 1009 if (!first) 1010 xo_close_list("input-histogram"); 1011 #undef NELEM 1012 xo_emit("\t{T:Histogram of error messages to be generated}:\n"); 1013 xo_open_container("errors"); 1014 p_5(icp6s_odst_unreach_noroute, "\t\t{:no-route/%ju} " 1015 "{N:/no route}\n"); 1016 p_5(icp6s_odst_unreach_admin, "\t\t{:admin-prohibited/%ju} " 1017 "{N:/administratively prohibited}\n"); 1018 p_5(icp6s_odst_unreach_beyondscope, "\t\t{:beyond-scope/%ju} " 1019 "{N:/beyond scope}\n"); 1020 p_5(icp6s_odst_unreach_addr, "\t\t{:address-unreachable/%ju} " 1021 "{N:/address unreachable}\n"); 1022 p_5(icp6s_odst_unreach_noport, "\t\t{:port-unreachable/%ju} " 1023 "{N:/port unreachable}\n"); 1024 p_5(icp6s_opacket_too_big, "\t\t{:packet-too-big/%ju} " 1025 "{N:/packet too big}\n"); 1026 p_5(icp6s_otime_exceed_transit, "\t\t{:time-exceed-transmit/%ju} " 1027 "{N:/time exceed transit}\n"); 1028 p_5(icp6s_otime_exceed_reassembly, "\t\t{:time-exceed-reassembly/%ju} " 1029 "{N:/time exceed reassembly}\n"); 1030 p_5(icp6s_oparamprob_header, "\t\t{:bad-header/%ju} " 1031 "{N:/erroneous header field}\n"); 1032 p_5(icp6s_oparamprob_nextheader, "\t\t{:bad-next-header/%ju} " 1033 "{N:/unrecognized next header}\n"); 1034 p_5(icp6s_oparamprob_option, "\t\t{:bad-option/%ju} " 1035 "{N:/unrecognized option}\n"); 1036 p_5(icp6s_oredirect, "\t\t{:redirects/%ju} " 1037 "{N:/redirect}\n"); 1038 p_5(icp6s_ounknown, "\t\t{:unknown/%ju} {N:unknown}\n"); 1039 1040 p(icp6s_reflect, "\t{:reflect/%ju} " 1041 "{N:/message response%s generated}\n"); 1042 p(icp6s_nd_toomanyopt, "\t{:too-many-nd-options/%ju} " 1043 "{N:/message%s with too many ND options}\n"); 1044 p(icp6s_nd_badopt, "\t{:bad-nd-options/%ju} " 1045 "{N:/message%s with bad ND options}\n"); 1046 p(icp6s_badns, "\t{:bad-neighbor-solicitation/%ju} " 1047 "{N:/bad neighbor solicitation message%s}\n"); 1048 p(icp6s_badna, "\t{:bad-neighbor-advertisement/%ju} " 1049 "{N:/bad neighbor advertisement message%s}\n"); 1050 p(icp6s_badrs, "\t{:bad-router-solicitation/%ju} " 1051 "{N:/bad router solicitation message%s}\n"); 1052 p(icp6s_badra, "\t{:bad-router-advertisement/%ju} " 1053 "{N:/bad router advertisement message%s}\n"); 1054 p(icp6s_badredirect, "\t{:bad-redirect/%ju} " 1055 "{N:/bad redirect message%s}\n"); 1056 xo_close_container("errors"); 1057 p(icp6s_pmtuchg, "\t{:path-mtu-changes/%ju} {N:/path MTU change%s}\n"); 1058 #undef p 1059 #undef p_5 1060 xo_close_container(name); 1061 } 1062 1063 /* 1064 * Dump ICMPv6 per-interface statistics based on RFC 2466. 1065 */ 1066 void 1067 icmp6_ifstats(char *ifname) 1068 { 1069 struct in6_ifreq ifr; 1070 int s; 1071 1072 #define p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 1073 xo_emit(m, (uintmax_t)ifr.ifr_ifru.ifru_icmp6stat.f, \ 1074 plural(ifr.ifr_ifru.ifru_icmp6stat.f)) 1075 #define p2(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \ 1076 xo_emit(m, (uintmax_t)ifr.ifr_ifru.ifru_icmp6stat.f, \ 1077 pluralies(ifr.ifr_ifru.ifru_icmp6stat.f)) 1078 1079 if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1080 xo_warn("Warning: socket(AF_INET6)"); 1081 return; 1082 } 1083 1084 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1085 if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) { 1086 if (errno != EPFNOSUPPORT) 1087 xo_warn("Warning: ioctl(SIOCGIFSTAT_ICMP6)"); 1088 goto end; 1089 } 1090 1091 xo_emit("{T:/icmp6 on %s}:\n", ifr.ifr_name); 1092 1093 xo_open_instance("icmp6-interface-statistics"); 1094 xo_emit("{ke:name/%s}", ifr.ifr_name); 1095 p(ifs6_in_msg, "\t{:received-packets/%ju} " 1096 "{N:/total input message%s}\n"); 1097 p(ifs6_in_error, "\t{:received-errors/%ju} " 1098 "{N:/total input error message%s}\n"); 1099 p(ifs6_in_dstunreach, "\t{:received-destination-unreachable/%ju} " 1100 "{N:/input destination unreachable error%s}\n"); 1101 p(ifs6_in_adminprohib, "\t{:received-admin-prohibited/%ju} " 1102 "{N:/input administratively prohibited error%s}\n"); 1103 p(ifs6_in_timeexceed, "\t{:received-time-exceeded/%ju} " 1104 "{N:/input time exceeded error%s}\n"); 1105 p(ifs6_in_paramprob, "\t{:received-bad-parameter/%ju} " 1106 "{N:/input parameter problem error%s}\n"); 1107 p(ifs6_in_pkttoobig, "\t{:received-packet-too-big/%ju} " 1108 "{N:/input packet too big error%s}\n"); 1109 p(ifs6_in_echo, "\t{:received-echo-requests/%ju} " 1110 "{N:/input echo request%s}\n"); 1111 p2(ifs6_in_echoreply, "\t{:received-echo-replies/%ju} " 1112 "{N:/input echo repl%s}\n"); 1113 p(ifs6_in_routersolicit, "\t{:received-router-solicitation/%ju} " 1114 "{N:/input router solicitation%s}\n"); 1115 p(ifs6_in_routeradvert, "\t{:received-router-advertisement/%ju} " 1116 "{N:/input router advertisement%s}\n"); 1117 p(ifs6_in_neighborsolicit, "\t{:received-neighbor-solicitation/%ju} " 1118 "{N:/input neighbor solicitation%s}\n"); 1119 p(ifs6_in_neighboradvert, "\t{:received-neighbor-advertisement/%ju} " 1120 "{N:/input neighbor advertisement%s}\n"); 1121 p(ifs6_in_redirect, "\t{received-redirects/%ju} " 1122 "{N:/input redirect%s}\n"); 1123 p2(ifs6_in_mldquery, "\t{:received-mld-queries/%ju} " 1124 "{N:/input MLD quer%s}\n"); 1125 p(ifs6_in_mldreport, "\t{:received-mld-reports/%ju} " 1126 "{N:/input MLD report%s}\n"); 1127 p(ifs6_in_mlddone, "\t{:received-mld-done/%ju} " 1128 "{N:/input MLD done%s}\n"); 1129 1130 p(ifs6_out_msg, "\t{:sent-packets/%ju} " 1131 "{N:/total output message%s}\n"); 1132 p(ifs6_out_error, "\t{:sent-errors/%ju} " 1133 "{N:/total output error message%s}\n"); 1134 p(ifs6_out_dstunreach, "\t{:sent-destination-unreachable/%ju} " 1135 "{N:/output destination unreachable error%s}\n"); 1136 p(ifs6_out_adminprohib, "\t{:sent-admin-prohibited/%ju} " 1137 "{N:/output administratively prohibited error%s}\n"); 1138 p(ifs6_out_timeexceed, "\t{:sent-time-exceeded/%ju} " 1139 "{N:/output time exceeded error%s}\n"); 1140 p(ifs6_out_paramprob, "\t{:sent-bad-parameter/%ju} " 1141 "{N:/output parameter problem error%s}\n"); 1142 p(ifs6_out_pkttoobig, "\t{:sent-packet-too-big/%ju} " 1143 "{N:/output packet too big error%s}\n"); 1144 p(ifs6_out_echo, "\t{:sent-echo-requests/%ju} " 1145 "{N:/output echo request%s}\n"); 1146 p2(ifs6_out_echoreply, "\t{:sent-echo-replies/%ju} " 1147 "{N:/output echo repl%s}\n"); 1148 p(ifs6_out_routersolicit, "\t{:sent-router-solicitation/%ju} " 1149 "{N:/output router solicitation%s}\n"); 1150 p(ifs6_out_routeradvert, "\t{:sent-router-advertisement/%ju} " 1151 "{N:/output router advertisement%s}\n"); 1152 p(ifs6_out_neighborsolicit, "\t{:sent-neighbor-solicitation/%ju} " 1153 "{N:/output neighbor solicitation%s}\n"); 1154 p(ifs6_out_neighboradvert, "\t{:sent-neighbor-advertisement/%ju} " 1155 "{N:/output neighbor advertisement%s}\n"); 1156 p(ifs6_out_redirect, "\t{:sent-redirects/%ju} " 1157 "{N:/output redirect%s}\n"); 1158 p2(ifs6_out_mldquery, "\t{:sent-mld-queries/%ju} " 1159 "{N:/output MLD quer%s}\n"); 1160 p(ifs6_out_mldreport, "\t{:sent-mld-reports/%ju} " 1161 "{N:/output MLD report%s}\n"); 1162 p(ifs6_out_mlddone, "\t{:sent-mld-dones/%ju} " 1163 "{N:/output MLD done%s}\n"); 1164 1165 end: 1166 xo_close_instance("icmp6-interface-statistics"); 1167 close(s); 1168 #undef p 1169 } 1170 1171 /* 1172 * Dump PIM statistics structure. 1173 */ 1174 void 1175 pim6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 1176 { 1177 struct pim6stat pim6stat; 1178 1179 if (fetch_stats("net.inet6.pim.stats", off, &pim6stat, 1180 sizeof(pim6stat), kread) != 0) 1181 return; 1182 1183 xo_emit("{T:/%s}:\n", name); 1184 xo_open_container(name); 1185 1186 #define p(f, m) if (pim6stat.f || sflag <= 1) \ 1187 xo_emit(m, (uintmax_t)pim6stat.f, plural(pim6stat.f)) 1188 1189 p(pim6s_rcv_total, "\t{:received-packets/%ju} " 1190 "{N:/message%s received}\n"); 1191 p(pim6s_rcv_tooshort, "\t{:dropped-too-short/%ju} " 1192 "{N:/message%s received with too few bytes}\n"); 1193 p(pim6s_rcv_badsum, "\t{:dropped-bad-checksum/%ju} " 1194 "{N:/message%s received with bad checksum}\n"); 1195 p(pim6s_rcv_badversion, "\t{:dropped-bad-version/%ju} " 1196 "{N:/message%s received with bad version}\n"); 1197 p(pim6s_rcv_registers, "\t{:received-registers/%ju} " 1198 "{N:/register%s received}\n"); 1199 p(pim6s_rcv_badregisters, "\t{:received-bad-registers/%ju} " 1200 "{N:/bad register%s received}\n"); 1201 p(pim6s_snd_registers, "\t{:sent-registers/%ju} " 1202 "{N:/register%s sent}\n"); 1203 #undef p 1204 xo_close_container(name); 1205 } 1206 1207 /* 1208 * Dump raw ip6 statistics structure. 1209 */ 1210 void 1211 rip6_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 1212 { 1213 struct rip6stat rip6stat; 1214 u_quad_t delivered; 1215 1216 if (fetch_stats("net.inet6.ip6.rip6stats", off, &rip6stat, 1217 sizeof(rip6stat), kread_counters) != 0) 1218 return; 1219 1220 xo_emit("{T:/%s}:\n", name); 1221 xo_open_container(name); 1222 1223 #define p(f, m) if (rip6stat.f || sflag <= 1) \ 1224 xo_emit(m, (uintmax_t)rip6stat.f, plural(rip6stat.f)) 1225 1226 p(rip6s_ipackets, "\t{:received-packets/%ju} " 1227 "{N:/message%s received}\n"); 1228 p(rip6s_isum, "\t{:input-checksum-computation/%ju} " 1229 "{N:/checksum calculation%s on inbound}\n"); 1230 p(rip6s_badsum, "\t{:received-bad-checksum/%ju} " 1231 "{N:/message%s with bad checksum}\n"); 1232 p(rip6s_nosock, "\t{:dropped-no-socket/%ju} " 1233 "{N:/message%s dropped due to no socket}\n"); 1234 p(rip6s_nosockmcast, "\t{:dropped-multicast-no-socket/%ju} " 1235 "{N:/multicast message%s dropped due to no socket}\n"); 1236 p(rip6s_fullsock, "\t{:dropped-full-socket-buffer/%ju} " 1237 "{N:/message%s dropped due to full socket buffers}\n"); 1238 delivered = rip6stat.rip6s_ipackets - 1239 rip6stat.rip6s_badsum - 1240 rip6stat.rip6s_nosock - 1241 rip6stat.rip6s_nosockmcast - 1242 rip6stat.rip6s_fullsock; 1243 if (delivered || sflag <= 1) 1244 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n", 1245 (uintmax_t)delivered); 1246 p(rip6s_opackets, "\t{:sent-packets/%ju} " 1247 "{N:/datagram%s output}\n"); 1248 #undef p 1249 xo_close_container(name); 1250 } 1251 1252 /* 1253 * Pretty print an Internet address (net address + port). 1254 * Take numeric_addr and numeric_port into consideration. 1255 */ 1256 #define GETSERVBYPORT6(port, proto, ret)\ 1257 {\ 1258 if (strcmp((proto), "tcp6") == 0)\ 1259 (ret) = getservbyport((int)(port), "tcp");\ 1260 else if (strcmp((proto), "udp6") == 0)\ 1261 (ret) = getservbyport((int)(port), "udp");\ 1262 else\ 1263 (ret) = getservbyport((int)(port), (proto));\ 1264 }; 1265 1266 void 1267 inet6print(const char *container, struct in6_addr *in6, int port, 1268 const char *proto, int numeric) 1269 { 1270 struct servent *sp = 0; 1271 char line[80], *cp; 1272 int width; 1273 size_t alen, plen; 1274 1275 if (container) 1276 xo_open_container(container); 1277 1278 snprintf(line, sizeof(line), "%.*s.", 1279 Wflag ? 39 : (Aflag && !numeric) ? 12 : 16, 1280 inet6name(in6)); 1281 alen = strlen(line); 1282 cp = line + alen; 1283 if (!numeric && port) 1284 GETSERVBYPORT6(port, proto, sp); 1285 if (sp || port == 0) 1286 snprintf(cp, sizeof(line) - alen, 1287 "%.15s", sp ? sp->s_name : "*"); 1288 else 1289 snprintf(cp, sizeof(line) - alen, 1290 "%d", ntohs((u_short)port)); 1291 width = Wflag ? 45 : Aflag ? 18 : 22; 1292 1293 xo_emit("{d:target/%-*.*s} ", width, width, line); 1294 1295 plen = strlen(cp); 1296 alen--; 1297 xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen, 1298 plen, cp); 1299 1300 if (container) 1301 xo_close_container(container); 1302 } 1303 1304 /* 1305 * Construct an Internet address representation. 1306 * If the numeric_addr has been supplied, give 1307 * numeric value, otherwise try for symbolic name. 1308 */ 1309 1310 char * 1311 inet6name(struct in6_addr *in6p) 1312 { 1313 struct sockaddr_in6 sin6; 1314 char hbuf[NI_MAXHOST], *cp; 1315 static char line[NI_MAXHOST]; 1316 static char domain[MAXHOSTNAMELEN]; 1317 static int first = 1; 1318 int flags, error; 1319 1320 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1321 strcpy(line, "*"); 1322 return (line); 1323 } 1324 if (first && !numeric_addr) { 1325 first = 0; 1326 if (gethostname(domain, sizeof(domain)) == 0 && 1327 (cp = strchr(domain, '.'))) 1328 strlcpy(domain, cp + 1, sizeof(domain)); 1329 else 1330 domain[0] = 0; 1331 } 1332 memset(&sin6, 0, sizeof(sin6)); 1333 memcpy(&sin6.sin6_addr, in6p, sizeof(*in6p)); 1334 sin6.sin6_family = AF_INET6; 1335 /* XXX: in6p.s6_addr[2] can contain scopeid. */ 1336 in6_fillscopeid(&sin6); 1337 flags = (numeric_addr) ? NI_NUMERICHOST : 0; 1338 error = getnameinfo((struct sockaddr *)&sin6, sizeof(sin6), hbuf, 1339 sizeof(hbuf), NULL, 0, flags); 1340 if (error == 0) { 1341 if ((flags & NI_NUMERICHOST) == 0 && 1342 (cp = strchr(hbuf, '.')) && 1343 !strcmp(cp + 1, domain)) 1344 *cp = 0; 1345 strlcpy(line, hbuf, sizeof(line)); 1346 } else { 1347 /* XXX: this should not happen. */ 1348 snprintf(line, sizeof(line), "%s", 1349 inet_ntop(AF_INET6, (void *)&sin6.sin6_addr, ntop_buf, 1350 sizeof(ntop_buf))); 1351 } 1352 return (line); 1353 } 1354 #endif /*INET6*/ 1355