external/bsd/tcpdump/dist/print-atalk.c

   1 /*
   2  * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
   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: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  * Format and print AppleTalk packets.
  22  */
  23
  24 #include <sys/cdefs.h>
  25 #ifndef lint
  26 __RCSID("$NetBSD: print-atalk.c,v 1.5 2014/11/20 03:05:03 christos Exp $");
  27 #endif
  28
  29 #define NETDISSECT_REWORKED
  30 #ifdef HAVE_CONFIG_H
  31 #include "config.h"
  32 #endif
  33
  34 #include <tcpdump-stdinc.h>
  35
  36 #include <stdio.h>
  37 #include <string.h>
  38
  39 #include "interface.h"
  40 #include "addrtoname.h"
  41 #include "ethertype.h"
  42 #include "extract.h"                    /* must come after interface.h */
  43 #include "appletalk.h"
  44
  45 static const char tstr[] = "[|atalk]";
  46
  47 static const struct tok type2str[] = {
  48         { ddpRTMP,              "rtmp" },
  49         { ddpRTMPrequest,       "rtmpReq" },
  50         { ddpECHO,              "echo" },
  51         { ddpIP,                "IP" },
  52         { ddpARP,               "ARP" },
  53         { ddpKLAP,              "KLAP" },
  54         { 0,                    NULL }
  55 };
  56
  57 struct aarp {
  58         uint16_t        htype, ptype;
  59         uint8_t         halen, palen;
  60         uint16_t        op;
  61         uint8_t         hsaddr[6];
  62         uint8_t         psaddr[4];
  63         uint8_t         hdaddr[6];
  64         uint8_t         pdaddr[4];
  65 };
  66
  67 static void atp_print(netdissect_options *, const struct atATP *, u_int);
  68 static void atp_bitmap_print(netdissect_options *, u_char);
  69 static void nbp_print(netdissect_options *, const struct atNBP *, u_int, u_short, u_char, u_char);
  70 static const struct atNBPtuple *nbp_tuple_print(netdissect_options *ndo, const struct atNBPtuple *,
  71                                                 const u_char *,
  72                                                 u_short, u_char, u_char);
  73 static const struct atNBPtuple *nbp_name_print(netdissect_options *, const struct atNBPtuple *,
  74                                                const u_char *);
  75 static const char *ataddr_string(netdissect_options *, u_short, u_char);
  76 static void ddp_print(netdissect_options *, const u_char *, u_int, int, u_short, u_char, u_char);
  77 static const char *ddpskt_string(netdissect_options *, int);
  78
  79 /*
  80  * Print LLAP packets received on a physical LocalTalk interface.
  81  */
  82 u_int
  83 ltalk_if_print(netdissect_options *ndo,
  84                const struct pcap_pkthdr *h, const u_char *p)
  85 {
  86         return (llap_print(ndo, p, h->caplen));
  87 }
  88
  89 /*
  90  * Print AppleTalk LLAP packets.
  91  */
  92 u_int
  93 llap_print(netdissect_options *ndo,
  94            register const u_char *bp, u_int length)
  95 {
  96         register const struct LAP *lp;
  97         register const struct atDDP *dp;
  98         register const struct atShortDDP *sdp;
  99         u_short snet;
 100         u_int hdrlen;
 101
 102         if (length < sizeof(*lp)) {
 103                 ND_PRINT((ndo, " [|llap %u]", length));
 104                 return (length);
 105         }
 106         lp = (const struct LAP *)bp;
 107         bp += sizeof(*lp);
 108         length -= sizeof(*lp);
 109         hdrlen = sizeof(*lp);
 110         switch (lp->type) {
 111
 112         case lapShortDDP:
 113                 if (length < ddpSSize) {
 114                         ND_PRINT((ndo, " [|sddp %u]", length));
 115                         return (length);
 116                 }
 117                 sdp = (const struct atShortDDP *)bp;
 118                 ND_PRINT((ndo, "%s.%s",
 119                     ataddr_string(ndo, 0, lp->src), ddpskt_string(ndo, sdp->srcSkt)));
 120                 ND_PRINT((ndo, " > %s.%s:",
 121                     ataddr_string(ndo, 0, lp->dst), ddpskt_string(ndo, sdp->dstSkt)));
 122                 bp += ddpSSize;
 123                 length -= ddpSSize;
 124                 hdrlen += ddpSSize;
 125                 ddp_print(ndo, bp, length, sdp->type, 0, lp->src, sdp->srcSkt);
 126                 break;
 127
 128         case lapDDP:
 129                 if (length < ddpSize) {
 130                         ND_PRINT((ndo, " [|ddp %u]", length));
 131                         return (length);
 132                 }
 133                 dp = (const struct atDDP *)bp;
 134                 snet = EXTRACT_16BITS(&dp->srcNet);
 135                 ND_PRINT((ndo, "%s.%s", ataddr_string(ndo, snet, dp->srcNode),
 136                     ddpskt_string(ndo, dp->srcSkt)));
 137                 ND_PRINT((ndo, " > %s.%s:",
 138                     ataddr_string(ndo, EXTRACT_16BITS(&dp->dstNet), dp->dstNode),
 139                     ddpskt_string(ndo, dp->dstSkt)));
 140                 bp += ddpSize;
 141                 length -= ddpSize;
 142                 hdrlen += ddpSize;
 143                 ddp_print(ndo, bp, length, dp->type, snet, dp->srcNode, dp->srcSkt);
 144                 break;
 145
 146 #ifdef notdef
 147         case lapKLAP:
 148                 klap_print(bp, length);
 149                 break;
 150 #endif
 151
 152         default:
 153                 ND_PRINT((ndo, "%d > %d at-lap#%d %u",
 154                     lp->src, lp->dst, lp->type, length));
 155                 break;
 156         }
 157         return (hdrlen);
 158 }
 159
 160 /*
 161  * Print EtherTalk/TokenTalk packets (or FDDITalk, or whatever it's called
 162  * when it runs over FDDI; yes, I've seen FDDI captures with AppleTalk
 163  * packets in them).
 164  */
 165 void
 166 atalk_print(netdissect_options *ndo,
 167             register const u_char *bp, u_int length)
 168 {
 169         register const struct atDDP *dp;
 170         u_short snet;
 171
 172         if(!ndo->ndo_eflag)
 173             ND_PRINT((ndo, "AT "));
 174
 175         if (length < ddpSize) {
 176                 ND_PRINT((ndo, " [|ddp %u]", length));
 177                 return;
 178         }
 179         dp = (const struct atDDP *)bp;
 180         snet = EXTRACT_16BITS(&dp->srcNet);
 181         ND_PRINT((ndo, "%s.%s", ataddr_string(ndo, snet, dp->srcNode),
 182                ddpskt_string(ndo, dp->srcSkt)));
 183         ND_PRINT((ndo, " > %s.%s: ",
 184                ataddr_string(ndo, EXTRACT_16BITS(&dp->dstNet), dp->dstNode),
 185                ddpskt_string(ndo, dp->dstSkt)));
 186         bp += ddpSize;
 187         length -= ddpSize;
 188         ddp_print(ndo, bp, length, dp->type, snet, dp->srcNode, dp->srcSkt);
 189 }
 190
 191 /* XXX should probably pass in the snap header and do checks like arp_print() */
 192 void
 193 aarp_print(netdissect_options *ndo,
 194            register const u_char *bp, u_int length)
 195 {
 196         register const struct aarp *ap;
 197
 198 #define AT(member) ataddr_string(ndo, (ap->member[1]<<8)|ap->member[2],ap->member[3])
 199
 200         ND_PRINT((ndo, "aarp "));
 201         ap = (const struct aarp *)bp;
 202         if (EXTRACT_16BITS(&ap->htype) == 1 &&
 203             EXTRACT_16BITS(&ap->ptype) == ETHERTYPE_ATALK &&
 204             ap->halen == 6 && ap->palen == 4 )
 205                 switch (EXTRACT_16BITS(&ap->op)) {
 206
 207                 case 1:                         /* request */
 208                         ND_PRINT((ndo, "who-has %s tell %s", AT(pdaddr), AT(psaddr)));
 209                         return;
 210
 211                 case 2:                         /* response */
 212                         ND_PRINT((ndo, "reply %s is-at %s", AT(psaddr), etheraddr_string(ndo, ap->hsaddr)));
 213                         return;
 214
 215                 case 3:                         /* probe (oy!) */
 216                         ND_PRINT((ndo, "probe %s tell %s", AT(pdaddr), AT(psaddr)));
 217                         return;
 218                 }
 219         ND_PRINT((ndo, "len %u op %u htype %u ptype %#x halen %u palen %u",
 220             length, EXTRACT_16BITS(&ap->op), EXTRACT_16BITS(&ap->htype),
 221             EXTRACT_16BITS(&ap->ptype), ap->halen, ap->palen));
 222 }
 223
 224 /*
 225  * Print AppleTalk Datagram Delivery Protocol packets.
 226  */
 227 static void
 228 ddp_print(netdissect_options *ndo,
 229           register const u_char *bp, register u_int length, register int t,
 230           register u_short snet, register u_char snode, u_char skt)
 231 {
 232
 233         switch (t) {
 234
 235         case ddpNBP:
 236                 nbp_print(ndo, (const struct atNBP *)bp, length, snet, snode, skt);
 237                 break;
 238
 239         case ddpATP:
 240                 atp_print(ndo, (const struct atATP *)bp, length);
 241                 break;
 242
 243         case ddpEIGRP:
 244                 eigrp_print(ndo, bp, length);
 245                 break;
 246
 247         default:
 248                 ND_PRINT((ndo, " at-%s %d", tok2str(type2str, NULL, t), length));
 249                 break;
 250         }
 251 }
 252
 253 static void
 254 atp_print(netdissect_options *ndo,
 255           register const struct atATP *ap, u_int length)
 256 {
 257         char c;
 258         uint32_t data;
 259
 260         if ((const u_char *)(ap + 1) > ndo->ndo_snapend) {
 261                 /* Just bail if we don't have the whole chunk. */
 262                 ND_PRINT((ndo, "%s", tstr));
 263                 return;
 264         }
 265         if (length < sizeof(*ap)) {
 266                 ND_PRINT((ndo, " [|atp %u]", length));
 267                 return;
 268         }
 269         length -= sizeof(*ap);
 270         switch (ap->control & 0xc0) {
 271
 272         case atpReqCode:
 273                 ND_PRINT((ndo, " atp-req%s %d",
 274                              ap->control & atpXO? " " : "*",
 275                              EXTRACT_16BITS(&ap->transID)));
 276
 277                 atp_bitmap_print(ndo, ap->bitmap);
 278
 279                 if (length != 0)
 280                         ND_PRINT((ndo, " [len=%u]", length));
 281
 282                 switch (ap->control & (atpEOM|atpSTS)) {
 283                 case atpEOM:
 284                         ND_PRINT((ndo, " [EOM]"));
 285                         break;
 286                 case atpSTS:
 287                         ND_PRINT((ndo, " [STS]"));
 288                         break;
 289                 case atpEOM|atpSTS:
 290                         ND_PRINT((ndo, " [EOM,STS]"));
 291                         break;
 292                 }
 293                 break;
 294
 295         case atpRspCode:
 296                 ND_PRINT((ndo, " atp-resp%s%d:%d (%u)",
 297                              ap->control & atpEOM? "*" : " ",
 298                              EXTRACT_16BITS(&ap->transID), ap->bitmap, length));
 299                 switch (ap->control & (atpXO|atpSTS)) {
 300                 case atpXO:
 301                         ND_PRINT((ndo, " [XO]"));
 302                         break;
 303                 case atpSTS:
 304                         ND_PRINT((ndo, " [STS]"));
 305                         break;
 306                 case atpXO|atpSTS:
 307                         ND_PRINT((ndo, " [XO,STS]"));
 308                         break;
 309                 }
 310                 break;
 311
 312         case atpRelCode:
 313                 ND_PRINT((ndo, " atp-rel  %d", EXTRACT_16BITS(&ap->transID)));
 314
 315                 atp_bitmap_print(ndo, ap->bitmap);
 316
 317                 /* length should be zero */
 318                 if (length)
 319                         ND_PRINT((ndo, " [len=%u]", length));
 320
 321                 /* there shouldn't be any control flags */
 322                 if (ap->control & (atpXO|atpEOM|atpSTS)) {
 323                         c = '[';
 324                         if (ap->control & atpXO) {
 325                                 ND_PRINT((ndo, "%cXO", c));
 326                                 c = ',';
 327                         }
 328                         if (ap->control & atpEOM) {
 329                                 ND_PRINT((ndo, "%cEOM", c));
 330                                 c = ',';
 331                         }
 332                         if (ap->control & atpSTS) {
 333                                 ND_PRINT((ndo, "%cSTS", c));
 334                                 c = ',';
 335                         }
 336                         ND_PRINT((ndo, "]"));
 337                 }
 338                 break;
 339
 340         default:
 341                 ND_PRINT((ndo, " atp-0x%x  %d (%u)", ap->control,
 342                              EXTRACT_16BITS(&ap->transID), length));
 343                 break;
 344         }
 345         data = EXTRACT_32BITS(&ap->userData);
 346         if (data != 0)
 347                 ND_PRINT((ndo, " 0x%x", data));
 348 }
 349
 350 static void
 351 atp_bitmap_print(netdissect_options *ndo,
 352                  register u_char bm)
 353 {
 354         register char c;
 355         register int i;
 356
 357         /*
 358          * The '& 0xff' below is needed for compilers that want to sign
 359          * extend a u_char, which is the case with the Ultrix compiler.
 360          * (gcc is smart enough to eliminate it, at least on the Sparc).
 361          */
 362         if ((bm + 1) & (bm & 0xff)) {
 363                 c = '<';
 364                 for (i = 0; bm; ++i) {
 365                         if (bm & 1) {
 366                                 ND_PRINT((ndo, "%c%d", c, i));
 367                                 c = ',';
 368                         }
 369                         bm >>= 1;
 370                 }
 371                 ND_PRINT((ndo, ">"));
 372         } else {
 373                 for (i = 0; bm; ++i)
 374                         bm >>= 1;
 375                 if (i > 1)
 376                         ND_PRINT((ndo, "<0-%d>", i - 1));
 377                 else
 378                         ND_PRINT((ndo, "<0>"));
 379         }
 380 }
 381
 382 static void
 383 nbp_print(netdissect_options *ndo,
 384           register const struct atNBP *np, u_int length, register u_short snet,
 385           register u_char snode, register u_char skt)
 386 {
 387         register const struct atNBPtuple *tp =
 388                 (const struct atNBPtuple *)((u_char *)np + nbpHeaderSize);
 389         int i;
 390         const u_char *ep;
 391
 392         if (length < nbpHeaderSize) {
 393                 ND_PRINT((ndo, " truncated-nbp %u", length));
 394                 return;
 395         }
 396
 397         length -= nbpHeaderSize;
 398         if (length < 8) {
 399                 /* must be room for at least one tuple */
 400                 ND_PRINT((ndo, " truncated-nbp %u", length + nbpHeaderSize));
 401                 return;
 402         }
 403         /* ep points to end of available data */
 404         ep = ndo->ndo_snapend;
 405         if ((const u_char *)tp > ep) {
 406                 ND_PRINT((ndo, "%s", tstr));
 407                 return;
 408         }
 409         switch (i = np->control & 0xf0) {
 410
 411         case nbpBrRq:
 412         case nbpLkUp:
 413                 ND_PRINT((ndo, i == nbpLkUp? " nbp-lkup %d:":" nbp-brRq %d:", np->id));
 414                 if ((const u_char *)(tp + 1) > ep) {
 415                         ND_PRINT((ndo, "%s", tstr));
 416                         return;
 417                 }
 418                 (void)nbp_name_print(ndo, tp, ep);
 419                 /*
 420                  * look for anomalies: the spec says there can only
 421                  * be one tuple, the address must match the source
 422                  * address and the enumerator should be zero.
 423                  */
 424                 if ((np->control & 0xf) != 1)
 425                         ND_PRINT((ndo, " [ntup=%d]", np->control & 0xf));
 426                 if (tp->enumerator)
 427                         ND_PRINT((ndo, " [enum=%d]", tp->enumerator));
 428                 if (EXTRACT_16BITS(&tp->net) != snet ||
 429                     tp->node != snode || tp->skt != skt)
 430                         ND_PRINT((ndo, " [addr=%s.%d]",
 431                             ataddr_string(ndo, EXTRACT_16BITS(&tp->net),
 432                             tp->node), tp->skt));
 433                 break;
 434
 435         case nbpLkUpReply:
 436                 ND_PRINT((ndo, " nbp-reply %d:", np->id));
 437
 438                 /* print each of the tuples in the reply */
 439                 for (i = np->control & 0xf; --i >= 0 && tp; )
 440                         tp = nbp_tuple_print(ndo, tp, ep, snet, snode, skt);
 441                 break;
 442
 443         default:
 444                 ND_PRINT((ndo, " nbp-0x%x  %d (%u)", np->control, np->id, length));
 445                 break;
 446         }
 447 }
 448
 449 /* print a counted string */
 450 static const char *
 451 print_cstring(netdissect_options *ndo,
 452               register const char *cp, register const u_char *ep)
 453 {
 454         register u_int length;
 455
 456         if (cp >= (const char *)ep) {
 457                 ND_PRINT((ndo, "%s", tstr));
 458                 return (0);
 459         }
 460         length = *cp++;
 461
 462         /* Spec says string can be at most 32 bytes long */
 463         if (length > 32) {
 464                 ND_PRINT((ndo, "[len=%u]", length));
 465                 return (0);
 466         }
 467         while ((int)--length >= 0) {
 468                 if (cp >= (const char *)ep) {
 469                         ND_PRINT((ndo, "%s", tstr));
 470                         return (0);
 471                 }
 472                 ND_PRINT((ndo, "%c", *cp++));
 473         }
 474         return (cp);
 475 }
 476
 477 static const struct atNBPtuple *
 478 nbp_tuple_print(netdissect_options *ndo,
 479                 register const struct atNBPtuple *tp, register const u_char *ep,
 480                 register u_short snet, register u_char snode, register u_char skt)
 481 {
 482         register const struct atNBPtuple *tpn;
 483
 484         if ((const u_char *)(tp + 1) > ep) {
 485                 ND_PRINT((ndo, "%s", tstr));
 486                 return 0;
 487         }
 488         tpn = nbp_name_print(ndo, tp, ep);
 489
 490         /* if the enumerator isn't 1, print it */
 491         if (tp->enumerator != 1)
 492                 ND_PRINT((ndo, "(%d)", tp->enumerator));
 493
 494         /* if the socket doesn't match the src socket, print it */
 495         if (tp->skt != skt)
 496                 ND_PRINT((ndo, " %d", tp->skt));
 497
 498         /* if the address doesn't match the src address, it's an anomaly */
 499         if (EXTRACT_16BITS(&tp->net) != snet || tp->node != snode)
 500                 ND_PRINT((ndo, " [addr=%s]",
 501                     ataddr_string(ndo, EXTRACT_16BITS(&tp->net), tp->node)));
 502
 503         return (tpn);
 504 }
 505
 506 static const struct atNBPtuple *
 507 nbp_name_print(netdissect_options *ndo,
 508                const struct atNBPtuple *tp, register const u_char *ep)
 509 {
 510         register const char *cp = (const char *)tp + nbpTupleSize;
 511
 512         ND_PRINT((ndo, " "));
 513
 514         /* Object */
 515         ND_PRINT((ndo, "\""));
 516         if ((cp = print_cstring(ndo, cp, ep)) != NULL) {
 517                 /* Type */
 518                 ND_PRINT((ndo, ":"));
 519                 if ((cp = print_cstring(ndo, cp, ep)) != NULL) {
 520                         /* Zone */
 521                         ND_PRINT((ndo, "@"));
 522                         if ((cp = print_cstring(ndo, cp, ep)) != NULL)
 523                                 ND_PRINT((ndo, "\""));
 524                 }
 525         }
 526         return ((const struct atNBPtuple *)cp);
 527 }
 528
 529
 530 #define HASHNAMESIZE 4096
 531
 532 struct hnamemem {
 533         int addr;
 534         char *name;
 535         struct hnamemem *nxt;
 536 };
 537
 538 static struct hnamemem hnametable[HASHNAMESIZE];
 539
 540 static const char *
 541 ataddr_string(netdissect_options *ndo,
 542               u_short atnet, u_char athost)
 543 {
 544         register struct hnamemem *tp, *tp2;
 545         register int i = (atnet << 8) | athost;
 546         char nambuf[256+1];
 547         static int first = 1;
 548         FILE *fp;
 549
 550         /*
 551          * if this is the first call, see if there's an AppleTalk
 552          * number to name map file.
 553          */
 554         if (first && (first = 0, !ndo->ndo_nflag)
 555             && (fp = fopen("/etc/atalk.names", "r"))) {
 556                 char line[256];
 557                 int i1, i2;
 558
 559                 while (fgets(line, sizeof(line), fp)) {
 560                         if (line[0] == '\n' || line[0] == 0 || line[0] == '#')
 561                                 continue;
 562                         if (sscanf(line, "%d.%d %256s", &i1, &i2, nambuf) == 3)
 563                                 /* got a hostname. */
 564                                 i2 |= (i1 << 8);
 565                         else if (sscanf(line, "%d %256s", &i1, nambuf) == 2)
 566                                 /* got a net name */
 567                                 i2 = (i1 << 8) | 255;
 568                         else
 569                                 continue;
 570
 571                         for (tp = &hnametable[i2 & (HASHNAMESIZE-1)];
 572                              tp->nxt; tp = tp->nxt)
 573                                 ;
 574                         tp->addr = i2;
 575                         tp->nxt = newhnamemem();
 576                         tp->name = strdup(nambuf);
 577                 }
 578                 fclose(fp);
 579         }
 580
 581         for (tp = &hnametable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
 582                 if (tp->addr == i)
 583                         return (tp->name);
 584
 585         /* didn't have the node name -- see if we've got the net name */
 586         i |= 255;
 587         for (tp2 = &hnametable[i & (HASHNAMESIZE-1)]; tp2->nxt; tp2 = tp2->nxt)
 588                 if (tp2->addr == i) {
 589                         tp->addr = (atnet << 8) | athost;
 590                         tp->nxt = newhnamemem();
 591                         (void)snprintf(nambuf, sizeof(nambuf), "%s.%d",
 592                             tp2->name, athost);
 593                         tp->name = strdup(nambuf);
 594                         return (tp->name);
 595                 }
 596
 597         tp->addr = (atnet << 8) | athost;
 598         tp->nxt = newhnamemem();
 599         if (athost != 255)
 600                 (void)snprintf(nambuf, sizeof(nambuf), "%d.%d", atnet, athost);
 601         else
 602                 (void)snprintf(nambuf, sizeof(nambuf), "%d", atnet);
 603         tp->name = strdup(nambuf);
 604
 605         return (tp->name);
 606 }
 607
 608 static const struct tok skt2str[] = {
 609         { rtmpSkt,      "rtmp" },       /* routing table maintenance */
 610         { nbpSkt,       "nis" },        /* name info socket */
 611         { echoSkt,      "echo" },       /* AppleTalk echo protocol */
 612         { zipSkt,       "zip" },        /* zone info protocol */
 613         { 0,            NULL }
 614 };
 615
 616 static const char *
 617 ddpskt_string(netdissect_options *ndo,
 618               register int skt)
 619 {
 620         static char buf[8];
 621
 622         if (ndo->ndo_nflag) {
 623                 (void)snprintf(buf, sizeof(buf), "%d", skt);
 624                 return (buf);
 625         }
 626         return (tok2str(skt2str, "%d", skt));
 627 }