usr.bin/netstat/inet.c

   1 /*-
   2  * Copyright (c) 1983, 1988, 1993, 1995
   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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #if 0
  31 #ifndef lint
  32 static char sccsid[] = "@(#)inet.c      8.5 (Berkeley) 5/24/95";
  33 #endif /* not lint */
  34 #endif
  35
  36 #include <sys/cdefs.h>
  37 __FBSDID("$FreeBSD$");
  38
  39 #include <sys/param.h>
  40 #include <sys/queue.h>
  41 #include <sys/domain.h>
  42 #include <sys/protosw.h>
  43 #include <sys/socket.h>
  44 #define _WANT_SOCKET
  45 #include <sys/socketvar.h>
  46 #include <sys/sysctl.h>
  47
  48 #include <net/route.h>
  49 #include <net/if_arp.h>
  50 #include <netinet/in.h>
  51 #include <netinet/in_systm.h>
  52 #include <netinet/ip.h>
  53 #include <netinet/ip_carp.h>
  54 #ifdef INET6
  55 #include <netinet/ip6.h>
  56 #endif /* INET6 */
  57 #include <netinet/in_pcb.h>
  58 #include <netinet/ip_icmp.h>
  59 #include <netinet/icmp_var.h>
  60 #include <netinet/igmp_var.h>
  61 #include <netinet/ip_var.h>
  62 #include <netinet/pim_var.h>
  63 #include <netinet/tcp.h>
  64 #include <netinet/tcpip.h>
  65 #include <netinet/tcp_seq.h>
  66 #define TCPSTATES
  67 #include <netinet/tcp_fsm.h>
  68 #include <netinet/tcp_timer.h>
  69 #include <netinet/tcp_var.h>
  70 #include <netinet/udp.h>
  71 #include <netinet/udp_var.h>
  72
  73 #include <arpa/inet.h>
  74 #include <err.h>
  75 #include <errno.h>
  76 #include <libutil.h>
  77 #include <netdb.h>
  78 #include <stdint.h>
  79 #include <stdio.h>
  80 #include <stdlib.h>
  81 #include <stdbool.h>
  82 #include <string.h>
  83 #include <unistd.h>
  84 #include <libxo/xo.h>
  85 #include "netstat.h"
  86 #include "nl_defs.h"
  87
  88 #define max(a, b) (((a) > (b)) ? (a) : (b))
  89
  90 #ifdef INET
  91 static void inetprint(const char *, struct in_addr *, int, const char *, int,
  92     const int);
  93 #endif
  94 #ifdef INET6
  95 static int udp_done, tcp_done, sdp_done;
  96 #endif /* INET6 */
  97
  98 static int
  99 pcblist_sysctl(int proto, const char *name, char **bufp)
 100 {
 101         const char *mibvar;
 102         char *buf;
 103         size_t len;
 104
 105         switch (proto) {
 106         case IPPROTO_TCP:
 107                 mibvar = "net.inet.tcp.pcblist";
 108                 break;
 109         case IPPROTO_UDP:
 110                 mibvar = "net.inet.udp.pcblist";
 111                 break;
 112         case IPPROTO_DIVERT:
 113                 mibvar = "net.inet.divert.pcblist";
 114                 break;
 115         default:
 116                 mibvar = "net.inet.raw.pcblist";
 117                 break;
 118         }
 119         if (strncmp(name, "sdp", 3) == 0)
 120                 mibvar = "net.inet.sdp.pcblist";
 121         len = 0;
 122         if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
 123                 if (errno != ENOENT)
 124                         xo_warn("sysctl: %s", mibvar);
 125                 return (0);
 126         }
 127         if ((buf = malloc(len)) == NULL) {
 128                 xo_warnx("malloc %lu bytes", (u_long)len);
 129                 return (0);
 130         }
 131         if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
 132                 xo_warn("sysctl: %s", mibvar);
 133                 free(buf);
 134                 return (0);
 135         }
 136         *bufp = buf;
 137         return (1);
 138 }
 139
 140 /*
 141  * Copied directly from uipc_socket2.c.  We leave out some fields that are in
 142  * nested structures that aren't used to avoid extra work.
 143  */
 144 static void
 145 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
 146 {
 147         xsb->sb_cc = sb->sb_ccc;
 148         xsb->sb_hiwat = sb->sb_hiwat;
 149         xsb->sb_mbcnt = sb->sb_mbcnt;
 150         xsb->sb_mcnt = sb->sb_mcnt;
 151         xsb->sb_ccnt = sb->sb_ccnt;
 152         xsb->sb_mbmax = sb->sb_mbmax;
 153         xsb->sb_lowat = sb->sb_lowat;
 154         xsb->sb_flags = sb->sb_flags;
 155         xsb->sb_timeo = sb->sb_timeo;
 156 }
 157
 158 int
 159 sotoxsocket(struct socket *so, struct xsocket *xso)
 160 {
 161         struct protosw proto;
 162         struct domain domain;
 163
 164         bzero(xso, sizeof *xso);
 165         xso->xso_len = sizeof *xso;
 166         xso->xso_so = (uintptr_t)so;
 167         xso->so_type = so->so_type;
 168         xso->so_options = so->so_options;
 169         xso->so_linger = so->so_linger;
 170         xso->so_state = so->so_state;
 171         xso->so_pcb = (uintptr_t)so->so_pcb;
 172         if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
 173                 return (-1);
 174         xso->xso_protocol = proto.pr_protocol;
 175         if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
 176                 return (-1);
 177         xso->xso_family = domain.dom_family;
 178         xso->so_timeo = so->so_timeo;
 179         xso->so_error = so->so_error;
 180         if ((so->so_options & SO_ACCEPTCONN) != 0) {
 181                 xso->so_qlen = so->sol_qlen;
 182                 xso->so_incqlen = so->sol_incqlen;
 183                 xso->so_qlimit = so->sol_qlimit;
 184         } else {
 185                 sbtoxsockbuf(&so->so_snd, &xso->so_snd);
 186                 sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
 187                 xso->so_oobmark = so->so_oobmark;
 188         }
 189         return (0);
 190 }
 191
 192 /*
 193  * Print a summary of connections related to an Internet
 194  * protocol.  For TCP, also give state of connection.
 195  * Listening processes (aflag) are suppressed unless the
 196  * -a (all) flag is specified.
 197  */
 198 void
 199 protopr(u_long off, const char *name, int af1, int proto)
 200 {
 201         static int first = 1;
 202         int istcp;
 203         char *buf;
 204         const char *vchar;
 205         struct xtcpcb *tp;
 206         struct xinpcb *inp;
 207         struct xinpgen *xig, *oxig;
 208         struct xsocket *so;
 209         int fnamelen, cnamelen;
 210
 211         istcp = 0;
 212         switch (proto) {
 213         case IPPROTO_TCP:
 214 #ifdef INET6
 215                 if (strncmp(name, "sdp", 3) != 0) {
 216                         if (tcp_done != 0)
 217                                 return;
 218                         else
 219                                 tcp_done = 1;
 220                 } else {
 221                         if (sdp_done != 0)
 222                                 return;
 223                         else
 224                                 sdp_done = 1;
 225                 }
 226 #endif
 227                 istcp = 1;
 228                 break;
 229         case IPPROTO_UDP:
 230 #ifdef INET6
 231                 if (udp_done != 0)
 232                         return;
 233                 else
 234                         udp_done = 1;
 235 #endif
 236                 break;
 237         }
 238
 239         if (!pcblist_sysctl(proto, name, &buf))
 240                 return;
 241
 242         if (cflag || Cflag) {
 243                 fnamelen = strlen("Stack");
 244                 cnamelen = strlen("CC");
 245                 oxig = xig = (struct xinpgen *)buf;
 246                 for (xig = (struct xinpgen*)((char *)xig + xig->xig_len);
 247                     xig->xig_len > sizeof(struct xinpgen);
 248                     xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
 249                         if (istcp) {
 250                                 tp = (struct xtcpcb *)xig;
 251                                 inp = &tp->xt_inp;
 252                         } else {
 253                                 continue;
 254                         }
 255                         if (so->xso_protocol != proto)
 256                                 continue;
 257                         if (inp->inp_gencnt > oxig->xig_gen)
 258                                 continue;
 259                         fnamelen = max(fnamelen, (int)strlen(tp->xt_stack));
 260                         cnamelen = max(cnamelen, (int)strlen(tp->xt_cc));
 261                 }
 262         }
 263
 264         oxig = xig = (struct xinpgen *)buf;
 265         for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
 266             xig->xig_len > sizeof(struct xinpgen);
 267             xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
 268                 if (istcp) {
 269                         tp = (struct xtcpcb *)xig;
 270                         inp = &tp->xt_inp;
 271                 } else {
 272                         inp = (struct xinpcb *)xig;
 273                 }
 274                 so = &inp->xi_socket;
 275
 276                 /* Ignore sockets for protocols other than the desired one. */
 277                 if (so->xso_protocol != proto)
 278                         continue;
 279
 280                 /* Ignore PCBs which were freed during copyout. */
 281                 if (inp->inp_gencnt > oxig->xig_gen)
 282                         continue;
 283
 284                 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
 285 #ifdef INET6
 286                     || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
 287 #endif /* INET6 */
 288                     || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
 289 #ifdef INET6
 290                                           && (inp->inp_vflag & INP_IPV6) == 0
 291 #endif /* INET6 */
 292                         ))
 293                     )
 294                         continue;
 295                 if (!aflag &&
 296                     (
 297                      (istcp && tp->t_state == TCPS_LISTEN)
 298                      || (af1 == AF_INET &&
 299                       inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 300 #ifdef INET6
 301                      || (af1 == AF_INET6 &&
 302                          IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 303 #endif /* INET6 */
 304                      || (af1 == AF_UNSPEC &&
 305                          (((inp->inp_vflag & INP_IPV4) != 0 &&
 306                            inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 307 #ifdef INET6
 308                           || ((inp->inp_vflag & INP_IPV6) != 0 &&
 309                               IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 310 #endif
 311                           ))
 312                      ))
 313                         continue;
 314
 315                 if (first) {
 316                         if (!Lflag) {
 317                                 xo_emit("Active Internet connections");
 318                                 if (aflag)
 319                                         xo_emit(" (including servers)");
 320                         } else
 321                                 xo_emit(
 322         "Current listen queue sizes (qlen/incqlen/maxqlen)");
 323                         xo_emit("\n");
 324                         if (Aflag)
 325                                 xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
 326                                     "Tcpcb");
 327                         if (Lflag)
 328                                 xo_emit((Aflag && !Wflag) ?
 329                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
 330                                     ((!Wflag || af1 == AF_INET) ?
 331                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
 332                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
 333                                     "Proto", "Listen", "Local Address");
 334                         else if (Tflag)
 335                                 xo_emit((Aflag && !Wflag) ?
 336     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
 337                                     ((!Wflag || af1 == AF_INET) ?
 338     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
 339     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
 340                                     "Proto", "Rexmit", "OOORcv", "0-win",
 341                                     "Local Address", "Foreign Address");
 342                         else {
 343                                 xo_emit((Aflag && !Wflag) ?
 344     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
 345                                     ((!Wflag || af1 == AF_INET) ?
 346     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
 347     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
 348                                     "Proto", "Recv-Q", "Send-Q",
 349                                     "Local Address", "Foreign Address");
 350                                 if (!xflag && !Rflag)
 351                                         xo_emit(" {T:/%-11.11s}", "(state)");
 352                         }
 353                         if (xflag) {
 354                                 xo_emit(" {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 355                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 356                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 357                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
 358                                     "R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS",
 359                                     "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
 360                                     "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
 361                                 xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
 362                                     "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
 363                                     "rexmt", "persist", "keep", "2msl",
 364                                     "delack", "rcvtime");
 365                         } else if (Rflag) {
 366                                 xo_emit("  {T:/%8.8s} {T:/%5.5s}",
 367                                     "flowid", "ftype");
 368                         }
 369                         if (cflag) {
 370                                 xo_emit(" {T:/%-*.*s}",
 371                                         fnamelen, fnamelen, "Stack");
 372                         }
 373                         if (Cflag)
 374                                 xo_emit(" {T:/%-*.*s} {T:/%10.10s}"
 375                                         " {T:/%10.10s} {T:/%5.5s}"
 376                                         " {T:/%3.3s}", cnamelen,
 377                                         cnamelen, "CC",
 378                                         "cwin",
 379                                         "ssthresh",
 380                                         "MSS",
 381                                         "ECN");
 382                         if (Pflag)
 383                                 xo_emit(" {T:/%s}", "Log ID");
 384                         xo_emit("\n");
 385                         first = 0;
 386                 }
 387                 if (Lflag && so->so_qlimit == 0)
 388                         continue;
 389                 xo_open_instance("socket");
 390                 if (Aflag) {
 391                         if (istcp)
 392                                 xo_emit("{q:address/%*lx} ",
 393                                     2 * (int)sizeof(void *),
 394                                     (u_long)inp->inp_ppcb);
 395                         else
 396                                 xo_emit("{q:address/%*lx} ",
 397                                     2 * (int)sizeof(void *),
 398                                     (u_long)so->so_pcb);
 399                 }
 400 #ifdef INET6
 401                 if ((inp->inp_vflag & INP_IPV6) != 0)
 402                         vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 403                             "46" : "6";
 404                 else
 405 #endif
 406                 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 407                     "4" : "";
 408                 if (istcp && (tp->t_flags & TF_TOE) != 0)
 409                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
 410                 else
 411                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
 412                 if (Lflag) {
 413                         char buf1[33];
 414
 415                         snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
 416                             so->so_incqlen, so->so_qlimit);
 417                         xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
 418                 } else if (Tflag) {
 419                         if (istcp)
 420                                 xo_emit("{:sent-retransmit-packets/%6u} "
 421                                     "{:received-out-of-order-packets/%6u} "
 422                                     "{:sent-zero-window/%6u} ",
 423                                     tp->t_sndrexmitpack, tp->t_rcvoopack,
 424                                     tp->t_sndzerowin);
 425                         else
 426                                 xo_emit("{P:/%21s}", "");
 427                 } else {
 428                         xo_emit("{:receive-bytes-waiting/%6u} "
 429                             "{:send-bytes-waiting/%6u} ",
 430                             so->so_rcv.sb_cc, so->so_snd.sb_cc);
 431                 }
 432                 if (numeric_port) {
 433 #ifdef INET
 434                         if (inp->inp_vflag & INP_IPV4) {
 435                                 inetprint("local", &inp->inp_laddr,
 436                                     (int)inp->inp_lport, name, 1, af1);
 437                                 if (!Lflag)
 438                                         inetprint("remote", &inp->inp_faddr,
 439                                             (int)inp->inp_fport, name, 1, af1);
 440                         }
 441 #endif
 442 #if defined(INET) && defined(INET6)
 443                         else
 444 #endif
 445 #ifdef INET6
 446                         if (inp->inp_vflag & INP_IPV6) {
 447                                 inet6print("local", &inp->in6p_laddr,
 448                                     (int)inp->inp_lport, name, 1);
 449                                 if (!Lflag)
 450                                         inet6print("remote", &inp->in6p_faddr,
 451                                             (int)inp->inp_fport, name, 1);
 452                         } /* else nothing printed now */
 453 #endif /* INET6 */
 454                 } else if (inp->inp_flags & INP_ANONPORT) {
 455 #ifdef INET
 456                         if (inp->inp_vflag & INP_IPV4) {
 457                                 inetprint("local", &inp->inp_laddr,
 458                                     (int)inp->inp_lport, name, 1, af1);
 459                                 if (!Lflag)
 460                                         inetprint("remote", &inp->inp_faddr,
 461                                             (int)inp->inp_fport, name, 0, af1);
 462                         }
 463 #endif
 464 #if defined(INET) && defined(INET6)
 465                         else
 466 #endif
 467 #ifdef INET6
 468                         if (inp->inp_vflag & INP_IPV6) {
 469                                 inet6print("local", &inp->in6p_laddr,
 470                                     (int)inp->inp_lport, name, 1);
 471                                 if (!Lflag)
 472                                         inet6print("remote", &inp->in6p_faddr,
 473                                             (int)inp->inp_fport, name, 0);
 474                         } /* else nothing printed now */
 475 #endif /* INET6 */
 476                 } else {
 477 #ifdef INET
 478                         if (inp->inp_vflag & INP_IPV4) {
 479                                 inetprint("local", &inp->inp_laddr,
 480                                     (int)inp->inp_lport, name, 0, af1);
 481                                 if (!Lflag)
 482                                         inetprint("remote", &inp->inp_faddr,
 483                                             (int)inp->inp_fport, name,
 484                                             inp->inp_lport != inp->inp_fport,
 485                                             af1);
 486                         }
 487 #endif
 488 #if defined(INET) && defined(INET6)
 489                         else
 490 #endif
 491 #ifdef INET6
 492                         if (inp->inp_vflag & INP_IPV6) {
 493                                 inet6print("local", &inp->in6p_laddr,
 494                                     (int)inp->inp_lport, name, 0);
 495                                 if (!Lflag)
 496                                         inet6print("remote", &inp->in6p_faddr,
 497                                             (int)inp->inp_fport, name,
 498                                             inp->inp_lport != inp->inp_fport);
 499                         } /* else nothing printed now */
 500 #endif /* INET6 */
 501                 }
 502                 if (xflag) {
 503                         xo_emit("{:receive-mbufs/%6u} {:send-mbufs/%6u} "
 504                             "{:receive-clusters/%6u} {:send-clusters/%6u} "
 505                             "{:receive-high-water/%6u} {:send-high-water/%6u} "
 506                             "{:receive-low-water/%6u} {:send-low-water/%6u} "
 507                             "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
 508                             "{:receive-mbuf-bytes-max/%6u} "
 509                             "{:send-mbuf-bytes-max/%6u}",
 510                             so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
 511                             so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
 512                             so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
 513                             so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
 514                             so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
 515                             so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
 516                         if (istcp)
 517                                 xo_emit(" {:retransmit-timer/%4d.%02d} "
 518                                     "{:persist-timer/%4d.%02d} "
 519                                     "{:keepalive-timer/%4d.%02d} "
 520                                     "{:msl2-timer/%4d.%02d} "
 521                                     "{:delay-ack-timer/%4d.%02d} "
 522                                     "{:inactivity-timer/%4d.%02d}",
 523                                     tp->tt_rexmt / 1000,
 524                                     (tp->tt_rexmt % 1000) / 10,
 525                                     tp->tt_persist / 1000,
 526                                     (tp->tt_persist % 1000) / 10,
 527                                     tp->tt_keep / 1000,
 528                                     (tp->tt_keep % 1000) / 10,
 529                                     tp->tt_2msl / 1000,
 530                                     (tp->tt_2msl % 1000) / 10,
 531                                     tp->tt_delack / 1000,
 532                                     (tp->tt_delack % 1000) / 10,
 533                                     tp->t_rcvtime / 1000,
 534                                     (tp->t_rcvtime % 1000) / 10);
 535                 }
 536                 if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
 537                         if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
 538                                 xo_emit("{:tcp-state/%-11d}", tp->t_state);
 539                         else {
 540                                 xo_emit("{:tcp-state/%-11s}",
 541                                     tcpstates[tp->t_state]);
 542 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
 543                                 /* Show T/TCP `hidden state' */
 544                                 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
 545                                         xo_emit("{:need-syn-or-fin/*}");
 546 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
 547                         }
 548                 }
 549                 if (Rflag) {
 550                         /* XXX: is this right Alfred */
 551                         xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
 552                             inp->inp_flowid,
 553                             inp->inp_flowtype);
 554                 }
 555                 if (istcp) {
 556                         if (cflag)
 557                                 xo_emit(" {:stack/%-*.*s}",
 558
 559                                         fnamelen, fnamelen, tp->xt_stack);
 560                         if (Cflag)
 561                                 xo_emit(" {:cc/%-*.*s}"
 562                                         " {:snd-cwnd/%10lu}"
 563                                         " {:snd-ssthresh/%10lu}"
 564                                         " {:t-maxseg/%5u} {:ecn/%3s}",
 565                                         cnamelen, cnamelen, tp->xt_cc,
 566                                         tp->t_snd_cwnd, tp->t_snd_ssthresh,
 567                                         tp->t_maxseg,
 568                                         (tp->t_state >= TCPS_ESTABLISHED ?
 569                                             (tp->xt_ecn > 0 ?
 570                                                 (tp->xt_ecn == 1 ?
 571                                                     "ecn" : "ace")
 572                                                 : "off")
 573                                             : "n/a"));
 574                         if (Pflag)
 575                                 xo_emit(" {:log-id/%s}",
 576                                     tp->xt_logid[0] == '\0' ?
 577                                     "-" : tp->xt_logid);
 578                 }
 579                 xo_emit("\n");
 580                 xo_close_instance("socket");
 581         }
 582         if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
 583                 if (oxig->xig_count > xig->xig_count) {
 584                         xo_emit("Some {d:lost/%s} sockets may have been "
 585                             "deleted.\n", name);
 586                 } else if (oxig->xig_count < xig->xig_count) {
 587                         xo_emit("Some {d:created/%s} sockets may have been "
 588                             "created.\n", name);
 589                 } else {
 590                         xo_emit("Some {d:changed/%s} sockets may have been "
 591                             "created or deleted.\n", name);
 592                 }
 593         }
 594         free(buf);
 595 }
 596
 597 /*
 598  * Dump TCP statistics structure.
 599  */
 600 void
 601 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 602 {
 603         struct tcpstat tcpstat;
 604         uint64_t tcps_states[TCP_NSTATES];
 605
 606 #ifdef INET6
 607         if (tcp_done != 0)
 608                 return;
 609         else
 610                 tcp_done = 1;
 611 #endif
 612
 613         if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
 614             sizeof(tcpstat), kread_counters) != 0)
 615                 return;
 616
 617         if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
 618             &tcps_states, sizeof(tcps_states), kread_counters) != 0)
 619                 return;
 620
 621         xo_open_container("tcp");
 622         xo_emit("{T:/%s}:\n", name);
 623
 624 #define p(f, m) if (tcpstat.f || sflag <= 1)                            \
 625         xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
 626 #define p1a(f, m) if (tcpstat.f || sflag <= 1)                          \
 627         xo_emit(m, (uintmax_t )tcpstat.f)
 628 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)       \
 629         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 630             (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
 631 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)      \
 632         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 633             (uintmax_t )tcpstat.f2)
 634 #define p3(f, m) if (tcpstat.f || sflag <= 1)                           \
 635         xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
 636
 637         p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
 638         p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
 639             "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
 640         p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
 641             "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
 642             "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
 643             "{N:retransmitted}\n");
 644         p(tcps_sndrexmitbad, "\t\t"
 645             "{:sent-unnecessary-retransmitted-packets/%ju} "
 646             "{N:/data packet%s unnecessarily retransmitted}\n");
 647         p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
 648             "{N:/resend%s initiated by MTU discovery}\n");
 649         p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
 650             "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
 651             "{N:delayed})\n");
 652         p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
 653             "{N:/URG only packet%s}\n");
 654         p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
 655             "{N:/window probe packet%s}\n");
 656         p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
 657             "{N:/window update packet%s}\n");
 658         p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
 659             "{N:/control packet%s}\n");
 660         p(tcps_rcvtotal, "\t{:received-packets/%ju} "
 661             "{N:/packet%s received}\n");
 662         p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
 663             "{:received-ack-packets/%ju} {N:/ack%s} "
 664             "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
 665         p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
 666             "{N:/duplicate ack%s}\n");
 667         p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
 668             "{N:/ack%s for unsent data}\n");
 669         p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
 670             "{:received-in-sequence-packets/%ju} {N:/packet%s} "
 671             "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
 672             "{N:received in-sequence}\n");
 673         p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
 674             "{:received-completely-duplicate-packets/%ju} "
 675             "{N:/completely duplicate packet%s} "
 676             "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
 677         p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
 678             "{N:/old duplicate packet%s}\n");
 679         p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
 680             "{:received-some-duplicate-packets/%ju} "
 681             "{N:/packet%s with some dup. data} "
 682             "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
 683         p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
 684             "{N:/out-of-order packet%s} "
 685             "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
 686         p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
 687             "{:received-after-window-packets/%ju} {N:/packet%s} "
 688             "({:received-after-window-bytes/%ju} {N:/byte%s}) "
 689             "{N:of data after window}\n");
 690         p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
 691             "{N:/window probe%s}\n");
 692         p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
 693             "{N:/window update packet%s}\n");
 694         p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
 695             "{N:/packet%s received after close}\n");
 696         p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
 697             "{N:/discarded for bad checksum%s}\n");
 698         p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
 699             "{N:/discarded for bad header offset field%s}\n");
 700         p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
 701             "{N:discarded because packet too short}\n");
 702         p1a(tcps_rcvreassfull, "\t\t{:discard-reassembly-queue-full/%ju} "
 703             "{N:discarded due to full reassembly queue}\n");
 704         p(tcps_connattempt, "\t{:connection-requests/%ju} "
 705             "{N:/connection request%s}\n");
 706         p(tcps_accepts, "\t{:connections-accepts/%ju} "
 707             "{N:/connection accept%s}\n");
 708         p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
 709             "{N:/bad connection attempt%s}\n");
 710         p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
 711             "{N:/listen queue overflow%s}\n");
 712         p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
 713             "{N:/ignored RSTs in the window%s}\n");
 714         p(tcps_connects, "\t{:connections-established/%ju} "
 715             "{N:/connection%s established (including accepts)}\n");
 716         p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
 717             "{N:/time%s used RTT from hostcache}\n");
 718         p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
 719             "{N:/time%s used RTT variance from hostcache}\n");
 720         p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
 721             "{N:/time%s used slow-start threshold from hostcache}\n");
 722         p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
 723             "{N:/connection%s closed (including} "
 724             "{:connection-drops/%ju} {N:/drop%s})\n");
 725         p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
 726             "{N:/connection%s updated cached RTT on close}\n");
 727         p(tcps_cachedrttvar, "\t\t"
 728             "{:connections-updated-variance-on-close/%ju} "
 729             "{N:/connection%s updated cached RTT variance on close}\n");
 730         p(tcps_cachedssthresh, "\t\t"
 731             "{:connections-updated-ssthresh-on-close/%ju} "
 732             "{N:/connection%s updated cached ssthresh on close}\n");
 733         p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
 734             "{N:/embryonic connection%s dropped}\n");
 735         p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
 736             "{N:/segment%s updated rtt (of} "
 737             "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
 738         p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
 739             "{N:/retransmit timeout%s}\n");
 740         p(tcps_timeoutdrop, "\t\t"
 741             "{:connections-dropped-by-retransmit-timeout/%ju} "
 742             "{N:/connection%s dropped by rexmit timeout}\n");
 743         p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
 744             "{N:/persist timeout%s}\n");
 745         p(tcps_persistdrop, "\t\t"
 746             "{:connections-dropped-by-persist-timeout/%ju} "
 747             "{N:/connection%s dropped by persist timeout}\n");
 748         p(tcps_finwait2_drops, "\t"
 749             "{:connections-dropped-by-finwait2-timeout/%ju} "
 750             "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
 751         p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
 752             "{N:/keepalive timeout%s}\n");
 753         p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
 754             "{N:/keepalive probe%s sent}\n");
 755         p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
 756             "{N:/connection%s dropped by keepalive}\n");
 757         p(tcps_predack, "\t{:ack-header-predictions/%ju} "
 758             "{N:/correct ACK header prediction%s}\n");
 759         p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
 760             "{N:/correct data packet header prediction%s}\n");
 761
 762         xo_open_container("syncache");
 763
 764         p3(tcps_sc_added, "\t{:entries-added/%ju} "
 765             "{N:/syncache entr%s added}\n");
 766         p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
 767             "{N:/retransmitted}\n");
 768         p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
 769         p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
 770         p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
 771         p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
 772             "{N:/bucket overflow}\n");
 773         p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
 774             "{N:/cache overflow}\n");
 775         p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
 776         p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
 777         p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
 778         p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
 779         p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
 780         p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
 781         p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
 782         p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
 783             "{N:/cookie%s received}\n");
 784
 785         xo_close_container("syncache");
 786
 787         xo_open_container("hostcache");
 788
 789         p3(tcps_hc_added, "\t{:entries-added/%ju} "
 790             "{N:/hostcache entr%s added}\n");
 791         p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
 792             "{N:/bucket overflow}\n");
 793
 794         xo_close_container("hostcache");
 795
 796         xo_open_container("sack");
 797
 798         p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
 799             "{N:/SACK recovery episode%s}\n");
 800         p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
 801             "{N:/segment rexmit%s in SACK recovery episodes}\n");
 802         p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
 803             "{N:/byte rexmit%s in SACK recovery episodes}\n");
 804         p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
 805             "{N:/SACK option%s (SACK blocks) received}\n");
 806         p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
 807             "{N:/SACK option%s (SACK blocks) sent}\n");
 808         p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
 809             "{N:/SACK scoreboard overflow}\n");
 810
 811         xo_close_container("sack");
 812         xo_open_container("ecn");
 813
 814         p(tcps_ecn_ce, "\t{:ce-packets/%ju} "
 815             "{N:/packet%s with ECN CE bit set}\n");
 816         p(tcps_ecn_ect0, "\t{:ect0-packets/%ju} "
 817             "{N:/packet%s with ECN ECT(0) bit set}\n");
 818         p(tcps_ecn_ect1, "\t{:ect1-packets/%ju} "
 819             "{N:/packet%s with ECN ECT(1) bit set}\n");
 820         p(tcps_ecn_shs, "\t{:handshakes/%ju} "
 821             "{N:/successful ECN handshake%s}\n");
 822         p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
 823             "{N:/time%s ECN reduced the congestion window}\n");
 824
 825         xo_close_container("ecn");
 826         xo_open_container("tcp-signature");
 827         p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
 828             "{N:/packet%s with matching signature received}\n");
 829         p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
 830             "{N:/packet%s with bad signature received}\n");
 831         p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
 832             "{N:/time%s failed to make signature due to no SA}\n");
 833         p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
 834             "{N:/time%s unexpected signature received}\n");
 835         p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
 836             "{N:/time%s no signature provided by segment}\n");
 837
 838         xo_close_container("tcp-signature");
 839         xo_open_container("pmtud");
 840
 841         p(tcps_pmtud_blackhole_activated, "\t{:pmtud-activated/%ju} "
 842             "{N:/Path MTU discovery black hole detection activation%s}\n");
 843         p(tcps_pmtud_blackhole_activated_min_mss,
 844             "\t{:pmtud-activated-min-mss/%ju} "
 845             "{N:/Path MTU discovery black hole detection min MSS activation%s}\n");
 846         p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} "
 847             "{N:/Path MTU discovery black hole detection failure%s}\n");
 848  #undef p
 849  #undef p1a
 850  #undef p2
 851  #undef p2a
 852  #undef p3
 853         xo_close_container("pmtud");
 854
 855
 856         xo_open_container("TCP connection count by state");
 857         xo_emit("{T:/TCP connection count by state}:\n");
 858         for (int i = 0; i < TCP_NSTATES; i++) {
 859                 /*
 860                  * XXXGL: is there a way in libxo to use %s
 861                  * in the "content string" of a format
 862                  * string? I failed to do that, that's why
 863                  * a temporary buffer is used to construct
 864                  * format string for xo_emit().
 865                  */
 866                 char fmtbuf[80];
 867
 868                 if (sflag > 1 && tcps_states[i] == 0)
 869                         continue;
 870                 snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
 871                     "{Np:/connection ,connections} in %s state\n",
 872                     tcpstates[i], tcpstates[i]);
 873                 xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
 874         }
 875         xo_close_container("TCP connection count by state");
 876
 877         xo_close_container("tcp");
 878 }
 879
 880 /*
 881  * Dump UDP statistics structure.
 882  */
 883 void
 884 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 885 {
 886         struct udpstat udpstat;
 887         uint64_t delivered;
 888
 889 #ifdef INET6
 890         if (udp_done != 0)
 891                 return;
 892         else
 893                 udp_done = 1;
 894 #endif
 895
 896         if (fetch_stats("net.inet.udp.stats", off, &udpstat,
 897             sizeof(udpstat), kread_counters) != 0)
 898                 return;
 899
 900         xo_open_container("udp");
 901         xo_emit("{T:/%s}:\n", name);
 902
 903 #define p(f, m) if (udpstat.f || sflag <= 1) \
 904         xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
 905 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
 906         xo_emit("\t" m, (uintmax_t)udpstat.f)
 907
 908         p(udps_ipackets, "{:received-datagrams/%ju} "
 909             "{N:/datagram%s received}\n");
 910         p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
 911             "{N:/with incomplete header}\n");
 912         p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
 913             "{N:/with bad data length field}\n");
 914         p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
 915             "{N:/with bad checksum}\n");
 916         p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
 917             "{N:/with no checksum}\n");
 918         p1a(udps_noport, "{:dropped-no-socket/%ju} "
 919             "{N:/dropped due to no socket}\n");
 920         p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
 921             "{N:/broadcast\\/multicast datagram%s undelivered}\n");
 922         p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
 923             "{N:/dropped due to full socket buffers}\n");
 924         p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
 925             "{N:/not for hashed pcb}\n");
 926         delivered = udpstat.udps_ipackets -
 927                     udpstat.udps_hdrops -
 928                     udpstat.udps_badlen -
 929                     udpstat.udps_badsum -
 930                     udpstat.udps_noport -
 931                     udpstat.udps_noportbcast -
 932                     udpstat.udps_fullsock;
 933         if (delivered || sflag <= 1)
 934                 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
 935                     (uint64_t)delivered);
 936         p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
 937         /* the next statistic is cumulative in udps_noportbcast */
 938         p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
 939             "{N:/time%s multicast source filter matched}\n");
 940 #undef p
 941 #undef p1a
 942         xo_close_container("udp");
 943 }
 944
 945 /*
 946  * Dump CARP statistics structure.
 947  */
 948 void
 949 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 950 {
 951         struct carpstats carpstat;
 952
 953         if (fetch_stats("net.inet.carp.stats", off, &carpstat,
 954             sizeof(carpstat), kread_counters) != 0)
 955                 return;
 956
 957         xo_open_container(name);
 958         xo_emit("{T:/%s}:\n", name);
 959
 960 #define p(f, m) if (carpstat.f || sflag <= 1) \
 961         xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
 962 #define p2(f, m) if (carpstat.f || sflag <= 1) \
 963         xo_emit(m, (uintmax_t)carpstat.f)
 964
 965         p(carps_ipackets, "\t{:received-inet-packets/%ju} "
 966             "{N:/packet%s received (IPv4)}\n");
 967         p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
 968             "{N:/packet%s received (IPv6)}\n");
 969         p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
 970             "{N:/packet%s discarded for wrong TTL}\n");
 971         p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
 972             "{N:/packet%s shorter than header}\n");
 973         p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
 974             "{N:/discarded for bad checksum%s}\n");
 975         p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
 976             "{N:/discarded packet%s with a bad version}\n");
 977         p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
 978             "{N:/discarded because packet too short}\n");
 979         p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
 980             "{N:/discarded for bad authentication}\n");
 981         p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
 982             "{N:/discarded for bad vhid}\n");
 983         p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
 984             "{N:/discarded because of a bad address list}\n");
 985         p(carps_opackets, "\t{:sent-inet-packets/%ju} "
 986             "{N:/packet%s sent (IPv4)}\n");
 987         p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
 988             "{N:/packet%s sent (IPv6)}\n");
 989         p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
 990             "{N:/send failed due to mbuf memory error}\n");
 991 #if notyet
 992         p(carps_ostates, "\t\t{:send-state-updates/%s} "
 993             "{N:/state update%s sent}\n");
 994 #endif
 995 #undef p
 996 #undef p2
 997         xo_close_container(name);
 998 }
 999
1000 /*
1001  * Dump IP statistics structure.
1002  */
1003 void
1004 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1005 {
1006         struct ipstat ipstat;
1007
1008         if (fetch_stats("net.inet.ip.stats", off, &ipstat,
1009             sizeof(ipstat), kread_counters) != 0)
1010                 return;
1011
1012         xo_open_container(name);
1013         xo_emit("{T:/%s}:\n", name);
1014
1015 #define p(f, m) if (ipstat.f || sflag <= 1) \
1016         xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
1017 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
1018         xo_emit(m, (uintmax_t )ipstat.f)
1019
1020         p(ips_total, "\t{:received-packets/%ju} "
1021             "{N:/total packet%s received}\n");
1022         p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
1023             "{N:/bad header checksum%s}\n");
1024         p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
1025             "{N:/with size smaller than minimum}\n");
1026         p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
1027             "{N:/with data size < data length}\n");
1028         p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
1029             "{N:/with ip length > max ip packet size}\n");
1030         p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
1031             "{N:/with header length < data size}\n");
1032         p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
1033             "{N:/with data length < header length}\n");
1034         p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
1035             "{N:/with bad options}\n");
1036         p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
1037             "{N:/with incorrect version number}\n");
1038         p(ips_fragments, "\t{:received-fragments/%ju} "
1039             "{N:/fragment%s received}\n");
1040         p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
1041             "{N:/fragment%s dropped (dup or out of space)}\n");
1042         p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
1043             "{N:/fragment%s dropped after timeout}\n");
1044         p(ips_reassembled, "\t{:reassembled-packets/%ju} "
1045             "{N:/packet%s reassembled ok}\n");
1046         p(ips_delivered, "\t{:received-local-packets/%ju} "
1047             "{N:/packet%s for this host}\n");
1048         p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
1049             "{N:/packet%s for unknown\\/unsupported protocol}\n");
1050         p(ips_forward, "\t{:forwarded-packets/%ju} "
1051             "{N:/packet%s forwarded}");
1052         p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
1053             "{N:/packet%s fast forwarded})");
1054         if (ipstat.ips_forward || sflag <= 1)
1055                 xo_emit("\n");
1056         p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
1057             "{N:/packet%s not forwardable}\n");
1058         p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
1059             "{N:/packet%s received for unknown multicast group}\n");
1060         p(ips_redirectsent, "\t{:redirects-sent/%ju} "
1061             "{N:/redirect%s sent}\n");
1062         p(ips_localout, "\t{:sent-packets/%ju} "
1063             "{N:/packet%s sent from this host}\n");
1064         p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
1065             "{N:/packet%s sent with fabricated ip header}\n");
1066         p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
1067             "{N:/output packet%s dropped due to no bufs, etc.}\n");
1068         p(ips_noroute, "\t{:discard-no-route/%ju} "
1069             "{N:/output packet%s discarded due to no route}\n");
1070         p(ips_fragmented, "\t{:sent-fragments/%ju} "
1071             "{N:/output datagram%s fragmented}\n");
1072         p(ips_ofragments, "\t{:fragments-created/%ju} "
1073             "{N:/fragment%s created}\n");
1074         p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
1075             "{N:/datagram%s that can't be fragmented}\n");
1076         p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
1077             "{N:/tunneling packet%s that can't find gif}\n");
1078         p(ips_badaddr, "\t{:discard-bad-address/%ju} "
1079             "{N:/datagram%s with bad address in header}\n");
1080 #undef p
1081 #undef p1a
1082         xo_close_container(name);
1083 }
1084
1085 /*
1086  * Dump ARP statistics structure.
1087  */
1088 void
1089 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1090 {
1091         struct arpstat arpstat;
1092
1093         if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1094             sizeof(arpstat), kread_counters) != 0)
1095                 return;
1096
1097         xo_open_container(name);
1098         xo_emit("{T:/%s}:\n", name);
1099
1100 #define p(f, m) if (arpstat.f || sflag <= 1) \
1101         xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1102 #define p2(f, m) if (arpstat.f || sflag <= 1) \
1103         xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1104
1105         p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1106         p(txerrors, "{:sent-failures/%ju} {N:/ARP request%s failed to sent}\n");
1107         p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1108         p(rxrequests, "{:received-requests/%ju} "
1109             "{N:/ARP request%s received}\n");
1110         p2(rxreplies, "{:received-replies/%ju} "
1111             "{N:/ARP repl%s received}\n");
1112         p(received, "{:received-packers/%ju} "
1113             "{N:/ARP packet%s received}\n");
1114         p(dropped, "{:dropped-no-entry/%ju} "
1115             "{N:/total packet%s dropped due to no ARP entry}\n");
1116         p(timeouts, "{:entries-timeout/%ju} "
1117             "{N:/ARP entry%s timed out}\n");
1118         p(dupips, "{:dropped-duplicate-address/%ju} "
1119             "{N:/Duplicate IP%s seen}\n");
1120 #undef p
1121 #undef p2
1122         xo_close_container(name);
1123 }
1124
1125
1126
1127 static  const char *icmpnames[ICMP_MAXTYPE + 1] = {
1128         "echo reply",                   /* RFC 792 */
1129         "#1",
1130         "#2",
1131         "destination unreachable",      /* RFC 792 */
1132         "source quench",                /* RFC 792 */
1133         "routing redirect",             /* RFC 792 */
1134         "#6",
1135         "#7",
1136         "echo",                         /* RFC 792 */
1137         "router advertisement",         /* RFC 1256 */
1138         "router solicitation",          /* RFC 1256 */
1139         "time exceeded",                /* RFC 792 */
1140         "parameter problem",            /* RFC 792 */
1141         "time stamp",                   /* RFC 792 */
1142         "time stamp reply",             /* RFC 792 */
1143         "information request",          /* RFC 792 */
1144         "information request reply",    /* RFC 792 */
1145         "address mask request",         /* RFC 950 */
1146         "address mask reply",           /* RFC 950 */
1147         "#19",
1148         "#20",
1149         "#21",
1150         "#22",
1151         "#23",
1152         "#24",
1153         "#25",
1154         "#26",
1155         "#27",
1156         "#28",
1157         "#29",
1158         "icmp traceroute",              /* RFC 1393 */
1159         "datagram conversion error",    /* RFC 1475 */
1160         "mobile host redirect",
1161         "IPv6 where-are-you",
1162         "IPv6 i-am-here",
1163         "mobile registration req",
1164         "mobile registration reply",
1165         "domain name request",          /* RFC 1788 */
1166         "domain name reply",            /* RFC 1788 */
1167         "icmp SKIP",
1168         "icmp photuris",                /* RFC 2521 */
1169 };
1170
1171 /*
1172  * Dump ICMP statistics.
1173  */
1174 void
1175 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1176 {
1177         struct icmpstat icmpstat;
1178         size_t len;
1179         int i, first;
1180
1181         if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1182             sizeof(icmpstat), kread_counters) != 0)
1183                 return;
1184
1185         xo_open_container(name);
1186         xo_emit("{T:/%s}:\n", name);
1187
1188 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1189         xo_emit(m, icmpstat.f, plural(icmpstat.f))
1190 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1191         xo_emit(m, icmpstat.f)
1192 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1193         xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1194
1195         p(icps_error, "\t{:icmp-calls/%lu} "
1196             "{N:/call%s to icmp_error}\n");
1197         p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1198             "{N:/error%s not generated in response to an icmp message}\n");
1199
1200         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1201                 if (icmpstat.icps_outhist[i] != 0) {
1202                         if (first) {
1203                                 xo_open_list("output-histogram");
1204                                 xo_emit("\tOutput histogram:\n");
1205                                 first = 0;
1206                         }
1207                         xo_open_instance("output-histogram");
1208                         if (icmpnames[i] != NULL)
1209                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1210                                     icmpnames[i], icmpstat.icps_outhist[i]);
1211                         else
1212                                 xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1213                                     "{:count/%lu}\n",
1214                                     i, icmpstat.icps_outhist[i]);
1215                         xo_close_instance("output-histogram");
1216                 }
1217         }
1218         if (!first)
1219                 xo_close_list("output-histogram");
1220
1221         p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1222             "{N:/message%s with bad code fields}\n");
1223         p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1224             "{N:/message%s less than the minimum length}\n");
1225         p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1226             "{N:/message%s with bad checksum}\n");
1227         p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1228             "{N:/message%s with bad length}\n");
1229         p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1230             "{N:/multicast echo requests ignored}\n");
1231         p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1232             "{N:/multicast timestamp requests ignored}\n");
1233
1234         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1235                 if (icmpstat.icps_inhist[i] != 0) {
1236                         if (first) {
1237                                 xo_open_list("input-histogram");
1238                                 xo_emit("\tInput histogram:\n");
1239                                 first = 0;
1240                         }
1241                         xo_open_instance("input-histogram");
1242                         if (icmpnames[i] != NULL)
1243                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1244                                         icmpnames[i],
1245                                         icmpstat.icps_inhist[i]);
1246                         else
1247                                 xo_emit(
1248                         "\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1249                                         i, icmpstat.icps_inhist[i]);
1250                         xo_close_instance("input-histogram");
1251                 }
1252         }
1253         if (!first)
1254                 xo_close_list("input-histogram");
1255
1256         p(icps_reflect, "\t{:sent-packets/%lu} "
1257             "{N:/message response%s generated}\n");
1258         p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1259             "{N:/invalid return address%s}\n");
1260         p(icps_noroute, "\t{:discard-no-route/%lu} "
1261             "{N:/no return route%s}\n");
1262 #undef p
1263 #undef p1a
1264 #undef p2
1265         if (live) {
1266                 len = sizeof i;
1267                 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1268                     0)
1269                         return;
1270                 xo_emit("\tICMP address mask responses are "
1271                     "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1272         }
1273
1274         xo_close_container(name);
1275 }
1276
1277 /*
1278  * Dump IGMP statistics structure.
1279  */
1280 void
1281 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1282 {
1283         struct igmpstat igmpstat;
1284         int error, zflag0;
1285
1286         if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1287             sizeof(igmpstat), kread) != 0)
1288                 return;
1289         /*
1290          * Reread net.inet.igmp.stats when zflag == 1.
1291          * This is because this MIB contains version number and
1292          * length of the structure which are not set when clearing
1293          * the counters.
1294          */
1295         zflag0 = zflag;
1296         if (zflag) {
1297                 zflag = 0;
1298                 error = fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1299                     sizeof(igmpstat), kread);
1300                 zflag = zflag0;
1301                 if (error)
1302                         return;
1303         }
1304
1305         if (igmpstat.igps_version != IGPS_VERSION_3) {
1306                 xo_warnx("%s: version mismatch (%d != %d)", __func__,
1307                     igmpstat.igps_version, IGPS_VERSION_3);
1308                 return;
1309         }
1310         if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1311                 xo_warnx("%s: size mismatch (%d != %d)", __func__,
1312                     igmpstat.igps_len, IGPS_VERSION3_LEN);
1313                 return;
1314         }
1315
1316         xo_open_container(name);
1317         xo_emit("{T:/%s}:\n", name);
1318
1319 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1320         xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1321 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1322         xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1323
1324         p64(igps_rcv_total, "\t{:received-messages/%ju} "
1325             "{N:/message%s received}\n");
1326         p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1327             "{N:/message%s received with too few bytes}\n");
1328         p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1329             "{N:/message%s received with wrong TTL}\n");
1330         p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1331             "{N:/message%s received with bad checksum}\n");
1332         py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1333             "{N:/V1\\/V2 membership quer%s received}\n");
1334         py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1335             "{N:/V3 membership quer%s received}\n");
1336         py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1337             "{N:/membership quer%s received with invalid field(s)}\n");
1338         py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1339             "{N:/general quer%s received}\n");
1340         py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1341             "{N:/group quer%s received}\n");
1342         py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1343             "{N:/group-source quer%s received}\n");
1344         py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1345             "{N:/group-source quer%s dropped}\n");
1346         p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1347             "{N:/membership report%s received}\n");
1348         p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1349             "{N:/membership report%s received with invalid field(s)}\n");
1350         p64(igps_rcv_ourreports, "\t"
1351             "{:received-membership-reports-matching/%ju} "
1352             "{N:/membership report%s received for groups to which we belong}"
1353             "\n");
1354         p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1355             "{N:/V3 report%s received without Router Alert}\n");
1356         p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1357             "{N:/membership report%s sent}\n");
1358 #undef p64
1359 #undef py64
1360         xo_close_container(name);
1361 }
1362
1363 /*
1364  * Dump PIM statistics structure.
1365  */
1366 void
1367 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1368     int proto __unused)
1369 {
1370         struct pimstat pimstat;
1371
1372         if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1373             sizeof(pimstat), kread_counters) != 0)
1374                 return;
1375
1376         xo_open_container(name);
1377         xo_emit("{T:/%s}:\n", name);
1378
1379 #define p(f, m) if (pimstat.f || sflag <= 1) \
1380         xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1381 #define py(f, m) if (pimstat.f || sflag <= 1) \
1382         xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1383
1384         p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1385             "{N:/message%s received}\n");
1386         p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1387             "{N:/byte%s received}\n");
1388         p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1389             "{N:/message%s received with too few bytes}\n");
1390         p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1391             "{N:/message%s received with bad checksum}\n");
1392         p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1393             "{N:/message%s received with bad version}\n");
1394         p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1395             "{N:/data register message%s received}\n");
1396         p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1397             "{N:/data register byte%s received}\n");
1398         p(pims_rcv_registers_wrongiif, "\t"
1399             "{:received-data-register-wrong-interface/%ju} "
1400             "{N:/data register message%s received on wrong iif}\n");
1401         p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1402             "{N:/bad register%s received}\n");
1403         p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1404             "{N:/data register message%s sent}\n");
1405         p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1406             "{N:/data register byte%s sent}\n");
1407 #undef p
1408 #undef py
1409         xo_close_container(name);
1410 }
1411
1412 #ifdef INET
1413 /*
1414  * Pretty print an Internet address (net address + port).
1415  */
1416 static void
1417 inetprint(const char *container, struct in_addr *in, int port,
1418     const char *proto, int num_port, const int af1)
1419 {
1420         struct servent *sp = 0;
1421         char line[80], *cp;
1422         int width;
1423         size_t alen, plen;
1424
1425         if (container)
1426                 xo_open_container(container);
1427
1428         if (Wflag)
1429             snprintf(line, sizeof(line), "%s.", inetname(in));
1430         else
1431             snprintf(line, sizeof(line), "%.*s.",
1432                 (Aflag && !num_port) ? 12 : 16, inetname(in));
1433         alen = strlen(line);
1434         cp = line + alen;
1435         if (!num_port && port)
1436                 sp = getservbyport((int)port, proto);
1437         if (sp || port == 0)
1438                 snprintf(cp, sizeof(line) - alen,
1439                     "%.15s ", sp ? sp->s_name : "*");
1440         else
1441                 snprintf(cp, sizeof(line) - alen,
1442                     "%d ", ntohs((u_short)port));
1443         width = (Aflag && !Wflag) ? 18 :
1444                 ((!Wflag || af1 == AF_INET) ? 22 : 45);
1445         if (Wflag)
1446                 xo_emit("{d:target/%-*s} ", width, line);
1447         else
1448                 xo_emit("{d:target/%-*.*s} ", width, width, line);
1449
1450         plen = strlen(cp) - 1;
1451         alen--;
1452         xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1453             plen, cp);
1454
1455         if (container)
1456                 xo_close_container(container);
1457 }
1458
1459 /*
1460  * Construct an Internet address representation.
1461  * If numeric_addr has been supplied, give
1462  * numeric value, otherwise try for symbolic name.
1463  */
1464 char *
1465 inetname(struct in_addr *inp)
1466 {
1467         char *cp;
1468         static char line[MAXHOSTNAMELEN];
1469         struct hostent *hp;
1470         struct netent *np;
1471
1472         cp = 0;
1473         if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1474                 int net = inet_netof(*inp);
1475                 int lna = inet_lnaof(*inp);
1476
1477                 if (lna == INADDR_ANY) {
1478                         np = getnetbyaddr(net, AF_INET);
1479                         if (np)
1480                                 cp = np->n_name;
1481                 }
1482                 if (cp == NULL) {
1483                         hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1484                         if (hp) {
1485                                 cp = hp->h_name;
1486                                 trimdomain(cp, strlen(cp));
1487                         }
1488                 }
1489         }
1490         if (inp->s_addr == INADDR_ANY)
1491                 strcpy(line, "*");
1492         else if (cp) {
1493                 strlcpy(line, cp, sizeof(line));
1494         } else {
1495                 inp->s_addr = ntohl(inp->s_addr);
1496 #define C(x)    ((u_int)((x) & 0xff))
1497                 snprintf(line, sizeof(line), "%u.%u.%u.%u",
1498                     C(inp->s_addr >> 24), C(inp->s_addr >> 16),
1499                     C(inp->s_addr >> 8), C(inp->s_addr));
1500         }
1501         return (line);
1502 }
1503 #endif