src/ngircd/irc.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  * Please read the file COPYING, README and AUTHORS for more information.
  10  */
  11
  12 #include "portab.h"
  13
  14 /**
  15  * @file
  16  * IRC commands
  17  */
  18
  19 #include "imp.h"
  20 #include <assert.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23
  24 #include "ngircd.h"
  25 #include "conn-func.h"
  26 #include "conf.h"
  27 #include "channel.h"
  28 #include "defines.h"
  29 #include "irc-write.h"
  30 #include "log.h"
  31 #include "match.h"
  32 #include "messages.h"
  33 #include "parse.h"
  34 #include "tool.h"
  35
  36 #include "exp.h"
  37 #include "irc.h"
  38
  39
  40 static char *Option_String PARAMS((CONN_ID Idx));
  41 static bool Send_Message PARAMS((CLIENT *Client, REQUEST *Req, int ForceType,
  42                                  bool SendErrors));
  43 static bool Send_Message_Mask PARAMS((CLIENT *from, char *command,
  44                                       char *targetMask, char *message,
  45                                       bool SendErrors));
  46
  47
  48 /**
  49  * Check if a list limit is reached and inform client accordingly.
  50  *
  51  * @param From The client.
  52  * @param Count Reply item count.
  53  * @param Limit Reply limit.
  54  * @param Name Name of the list.
  55  * @return true if list limit has been reached; false otherwise.
  56  */
  57 GLOBAL bool
  58 IRC_CheckListTooBig(CLIENT *From, const int Count, const int Limit,
  59                     const char *Name)
  60 {
  61         assert(From != NULL);
  62         assert(Count >= 0);
  63         assert(Limit > 0);
  64         assert(Name != NULL);
  65
  66         if (Count < Limit)
  67                 return false;
  68
  69         (void)IRC_WriteStrClient(From,
  70                                  "NOTICE %s :%s list limit (%d) reached!",
  71                                  Client_ID(From), Name, Limit);
  72         IRC_SetPenalty(From, 2);
  73         return true;
  74 }
  75
  76
  77 GLOBAL bool
  78 IRC_ERROR( CLIENT *Client, REQUEST *Req )
  79 {
  80         assert( Client != NULL );
  81         assert( Req != NULL );
  82
  83         if (Req->argc < 1)
  84                 Log(LOG_NOTICE, "Got ERROR from \"%s\"!",
  85                     Client_Mask(Client));
  86         else
  87                 Log(LOG_NOTICE, "Got ERROR from \"%s\": \"%s\"!",
  88                     Client_Mask(Client), Req->argv[0]);
  89
  90         return CONNECTED;
  91 } /* IRC_ERROR */
  92
  93
  94 /**
  95  * Handler for the IRC "KILL" command.
  96  *
  97  * This function implements the IRC command "KILL" wich is used to selectively
  98  * disconnect clients. It can be used by IRC operators and servers, for example
  99  * to "solve" nick collisions after netsplits. See RFC 2812 section 3.7.1.
 100  *
 101  * Please note that this function is also called internally, without a real
 102  * KILL command being received over the network! Client is Client_ThisServer()
 103  * in this case, and the prefix in Req is NULL.
 104  *
 105  * @param Client        The client from which this command has been received
 106  *                      or Client_ThisServer() when generated interanlly.
 107  * @param Req           Request structure with prefix and all parameters.
 108  * @returns             CONNECTED or DISCONNECTED.
 109  */
 110 GLOBAL bool
 111 IRC_KILL( CLIENT *Client, REQUEST *Req )
 112 {
 113         CLIENT *prefix, *c;
 114         char reason[COMMAND_LEN], *msg;
 115         CONN_ID my_conn, conn;
 116
 117         assert (Client != NULL);
 118         assert (Req != NULL);
 119
 120         if (Client_Type(Client) != CLIENT_SERVER && !Client_OperByMe(Client))
 121                 return IRC_WriteStrClient(Client, ERR_NOPRIVILEGES_MSG,
 122                                           Client_ID(Client));
 123
 124         if (Req->argc != 2)
 125                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 126                                           Client_ID(Client), Req->command);
 127
 128         /* Get prefix (origin); use the client if no prefix is given. */
 129         if (Req->prefix)
 130                 prefix = Client_Search(Req->prefix);
 131         else
 132                 prefix = Client;
 133
 134         /* Log a warning message and use this server as origin when the
 135          * prefix (origin) is invalid. */
 136         if (!prefix) {
 137                 Log(LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!",
 138                     Req->prefix );
 139                 prefix = Client_ThisServer();
 140         }
 141
 142         if (Client != Client_ThisServer())
 143                 Log(LOG_NOTICE|LOG_snotice,
 144                     "Got KILL command from \"%s\" for \"%s\": %s",
 145                     Client_Mask(prefix), Req->argv[0], Req->argv[1]);
 146
 147         /* Build reason string: Prefix the "reason" if the originator is a
 148          * regular user, so users can't spoof KILLs of servers. */
 149         if (Client_Type(Client) == CLIENT_USER)
 150                 snprintf(reason, sizeof(reason), "KILLed by %s: %s",
 151                          Client_ID(Client), Req->argv[1]);
 152         else
 153                 strlcpy(reason, Req->argv[1], sizeof(reason));
 154
 155         /* Inform other servers */
 156         IRC_WriteStrServersPrefix(Client, prefix, "KILL %s :%s",
 157                                   Req->argv[0], reason);
 158
 159         /* Save ID of this connection */
 160         my_conn = Client_Conn( Client );
 161
 162         /* Do we host such a client? */
 163         c = Client_Search( Req->argv[0] );
 164         if( c )
 165         {
 166                 if(( Client_Type( c ) != CLIENT_USER ) &&
 167                    ( Client_Type( c ) != CLIENT_GOTNICK ))
 168                 {
 169                         /* Target of this KILL is not a regular user, this is
 170                          * invalid! So we ignore this case if we received a
 171                          * regular KILL from the network and try to kill the
 172                          * client/connection anyway (but log an error!) if the
 173                          * origin is the local server. */
 174
 175                         if( Client != Client_ThisServer( ))
 176                         {
 177                                 /* Invalid KILL received from remote */
 178                                 if( Client_Type( c ) == CLIENT_SERVER )
 179                                         msg = ERR_CANTKILLSERVER_MSG;
 180                                 else
 181                                         msg = ERR_NOPRIVILEGES_MSG;
 182                                 return IRC_WriteStrClient( Client, msg,
 183                                         Client_ID( Client ));
 184                         }
 185
 186                         Log( LOG_ERR, "Got KILL for invalid client type: %d, \"%s\"!",
 187                              Client_Type( c ), Req->argv[0] );
 188                 }
 189
 190                 /* Kill the client NOW:
 191                  *  - Close the local connection (if there is one),
 192                  *  - Destroy the CLIENT structure for remote clients.
 193                  * Note: Conn_Close() removes the CLIENT structure as well. */
 194                 conn = Client_Conn( c );
 195                 if(conn > NONE)
 196                         Conn_Close(conn, NULL, reason, true);
 197                 else
 198                         Client_Destroy(c, NULL, reason, false);
 199         }
 200         else
 201                 Log( LOG_NOTICE, "Client with nick \"%s\" is unknown here.", Req->argv[0] );
 202
 203         /* Are we still connected or were we killed, too? */
 204         if(( my_conn > NONE ) && ( Conn_GetClient( my_conn )))
 205                 return CONNECTED;
 206         else
 207                 return DISCONNECTED;
 208 } /* IRC_KILL */
 209
 210
 211 /**
 212  * Handler for the IRC command NOTICE.
 213  */
 214 GLOBAL bool
 215 IRC_NOTICE(CLIENT *Client, REQUEST *Req)
 216 {
 217         return Send_Message(Client, Req, CLIENT_USER, false);
 218 } /* IRC_NOTICE */
 219
 220
 221 /**
 222  * Handler for the IRC command PRIVMSG.
 223  */
 224 GLOBAL bool
 225 IRC_PRIVMSG(CLIENT *Client, REQUEST *Req)
 226 {
 227         return Send_Message(Client, Req, CLIENT_USER, true);
 228 } /* IRC_PRIVMSG */
 229
 230
 231 /**
 232  * Handler for the IRC command SQUERY.
 233  */
 234 GLOBAL bool
 235 IRC_SQUERY(CLIENT *Client, REQUEST *Req)
 236 {
 237         return Send_Message(Client, Req, CLIENT_SERVICE, true);
 238 } /* IRC_SQUERY */
 239
 240
 241 GLOBAL bool
 242 IRC_TRACE( CLIENT *Client, REQUEST *Req )
 243 {
 244         CLIENT *from, *target, *c;
 245         CONN_ID idx, idx2;
 246         char user[CLIENT_USER_LEN];
 247
 248         assert( Client != NULL );
 249         assert( Req != NULL );
 250
 251         /* Bad number of arguments? */
 252         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
 253
 254         /* Search sender */
 255         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 256         else from = Client;
 257         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 258
 259         /* Search target */
 260         if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
 261         else target = Client_ThisServer( );
 262
 263         /* Forward command to other server? */
 264         if( target != Client_ThisServer( ))
 265         {
 266                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 267
 268                 /* Send RPL_TRACELINK back to initiator */
 269                 idx = Client_Conn( Client ); assert( idx > NONE );
 270                 idx2 = Client_Conn( Client_NextHop( target )); assert( idx2 > NONE );
 271                 if( ! IRC_WriteStrClient( from, RPL_TRACELINK_MSG, Client_ID( from ), PACKAGE_NAME, PACKAGE_VERSION, Client_ID( target ), Client_ID( Client_NextHop( target )), Option_String( idx2 ), time( NULL ) - Conn_StartTime( idx2 ), Conn_SendQ( idx ), Conn_SendQ( idx2 ))) return DISCONNECTED;
 272
 273                 /* Forward command */
 274                 IRC_WriteStrClientPrefix( target, from, "TRACE %s", Req->argv[0] );
 275                 return CONNECTED;
 276         }
 277
 278         /* Infos about all connected servers */
 279         c = Client_First( );
 280         while( c )
 281         {
 282                 if( Client_Conn( c ) > NONE )
 283                 {
 284                         /* Local client */
 285                         if( Client_Type( c ) == CLIENT_SERVER )
 286                         {
 287                                 /* Server link */
 288                                 strlcpy( user, Client_User( c ), sizeof( user ));
 289                                 if( user[0] == '~' ) strlcpy( user, "unknown", sizeof( user ));
 290                                 if( ! IRC_WriteStrClient( from, RPL_TRACESERVER_MSG, Client_ID( from ), Client_ID( c ), user, Client_Hostname( c ), Client_Mask( Client_ThisServer( )), Option_String( Client_Conn( c )))) return DISCONNECTED;
 291                         }
 292                         if(( Client_Type( c ) == CLIENT_USER ) && ( strchr( Client_Modes( c ), 'o' )))
 293                         {
 294                                 /* IRC Operator */
 295                                 if( ! IRC_WriteStrClient( from, RPL_TRACEOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
 296                         }
 297                 }
 298                 c = Client_Next( c );
 299         }
 300
 301         IRC_SetPenalty( Client, 3 );
 302         return IRC_WriteStrClient( from, RPL_TRACEEND_MSG, Client_ID( from ), Conf_ServerName, PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_DebugLevel );
 303 } /* IRC_TRACE */
 304
 305
 306 GLOBAL bool
 307 IRC_HELP( CLIENT *Client, REQUEST *Req )
 308 {
 309         COMMAND *cmd;
 310
 311         assert( Client != NULL );
 312         assert( Req != NULL );
 313
 314         /* Bad number of arguments? */
 315         if( Req->argc > 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
 316
 317         cmd = Parse_GetCommandStruct( );
 318         while( cmd->name )
 319         {
 320                 if( ! IRC_WriteStrClient( Client, "NOTICE %s :%s", Client_ID( Client ), cmd->name )) return DISCONNECTED;
 321                 cmd++;
 322         }
 323
 324         IRC_SetPenalty( Client, 2 );
 325         return CONNECTED;
 326 } /* IRC_HELP */
 327
 328
 329 static char *
 330 Option_String( CONN_ID Idx )
 331 {
 332         static char option_txt[8];
 333         UINT16 options;
 334
 335         options = Conn_Options(Idx);
 336
 337         strcpy(option_txt, "F");        /* No idea what this means, but the
 338                                          * original ircd sends it ... */
 339 #ifdef ZLIB
 340         if(options & CONN_ZIP)          /* zlib compression supported. */
 341                 strcat(option_txt, "z");
 342 #endif
 343
 344         return option_txt;
 345 } /* Option_String */
 346
 347
 348 static bool
 349 Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
 350 {
 351         CLIENT *cl, *from;
 352         CL2CHAN *cl2chan;
 353         CHANNEL *chan;
 354         char *currentTarget = Req->argv[0];
 355         char *lastCurrentTarget = NULL;
 356
 357         assert(Client != NULL);
 358         assert(Req != NULL);
 359
 360         if (Req->argc == 0) {
 361                 if (!SendErrors)
 362                         return CONNECTED;
 363                 return IRC_WriteStrClient(Client, ERR_NORECIPIENT_MSG,
 364                                           Client_ID(Client), Req->command);
 365         }
 366         if (Req->argc == 1) {
 367                 if (!SendErrors)
 368                         return CONNECTED;
 369                 return IRC_WriteStrClient(Client, ERR_NOTEXTTOSEND_MSG,
 370                                           Client_ID(Client));
 371         }
 372         if (Req->argc > 2) {
 373                 if (!SendErrors)
 374                         return CONNECTED;
 375                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 376                                           Client_ID(Client), Req->command);
 377         }
 378
 379         if (Client_Type(Client) == CLIENT_SERVER)
 380                 from = Client_Search(Req->prefix);
 381         else
 382                 from = Client;
 383         if (!from)
 384                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
 385                                           Client_ID(Client), Req->prefix);
 386
 387         /* handle msgtarget = msgto *("," msgto) */
 388         currentTarget = strtok_r(currentTarget, ",", &lastCurrentTarget);
 389         ngt_UpperStr(Req->command);
 390
 391         while (currentTarget) {
 392                 /* Check for and handle valid <msgto> of form:
 393                  * RFC 2812 2.3.1:
 394                  *   msgto =  channel / ( user [ "%" host ] "@" servername )
 395                  *   msgto =/ ( user "%" host ) / targetmask
 396                  *   msgto =/ nickname / ( nickname "!" user "@" host )
 397                  */
 398                 if (strchr(currentTarget, '!') == NULL)
 399                         /* nickname */
 400                         cl = Client_Search(currentTarget);
 401                 else
 402                         cl = NULL;
 403
 404                 if (cl == NULL) {
 405                         /* If currentTarget isn't a nickname check for:
 406                          * user ["%" host] "@" servername
 407                          * user "%" host
 408                          * nickname "!" user "@" host
 409                          */
 410                         char target[COMMAND_LEN];
 411                         char * nick = NULL;
 412                         char * user = NULL;
 413                         char * host = NULL;
 414                         char * server = NULL;
 415
 416                         strlcpy(target, currentTarget, COMMAND_LEN);
 417                         server = strchr(target, '@');
 418                         if (server) {
 419                                 *server = '\0';
 420                                 server++;
 421                         }
 422                         host = strchr(target, '%');
 423                         if (host) {
 424                                 *host = '\0';
 425                                 host++;
 426                         }
 427                         user = strchr(target, '!');
 428                         if (user) {
 429                                 /* msgto form: nick!user@host */
 430                                 *user = '\0';
 431                                 user++;
 432                                 nick = target;
 433                                 host = server; /* not "@server" but "@host" */
 434                         } else {
 435                                 user = target;
 436                         }
 437
 438                         for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
 439                                 if (Client_Type(cl) != CLIENT_USER &&
 440                                     Client_Type(cl) != CLIENT_SERVICE)
 441                                         continue;
 442                                 if (nick != NULL && host != NULL) {
 443                                         if (strcmp(nick, Client_ID(cl)) == 0 &&
 444                                             strcmp(user, Client_User(cl)) == 0 &&
 445                                             strcasecmp(host, Client_HostnameCloaked(cl)) == 0)
 446                                                 break;
 447                                         else
 448                                                 continue;
 449                                 }
 450                                 if (strcasecmp(user, Client_User(cl)) != 0)
 451                                         continue;
 452                                 if (host != NULL && strcasecmp(host,
 453                                                 Client_HostnameCloaked(cl)) != 0)
 454                                         continue;
 455                                 if (server != NULL && strcasecmp(server,
 456                                                 Client_ID(Client_Introducer(cl))) != 0)
 457                                         continue;
 458                                 break;
 459                         }
 460                 }
 461
 462                 if (cl) {
 463                         /* Target is a user, enforce type */
 464 #ifndef STRICT_RFC
 465                         if (Client_Type(cl) != ForceType &&
 466                             !(ForceType == CLIENT_USER &&
 467                               (Client_Type(cl) == CLIENT_USER ||
 468                                Client_Type(cl) == CLIENT_SERVICE))) {
 469 #else
 470                         if (Client_Type(cl) != ForceType) {
 471 #endif
 472                                 if (!SendErrors)
 473                                         return CONNECTED;
 474                                 return IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG,
 475                                                           Client_ID(from),
 476                                                           currentTarget);
 477                         }
 478
 479 #ifndef STRICT_RFC
 480                         if (ForceType == CLIENT_SERVICE &&
 481                             (Conn_Options(Client_Conn(Client_NextHop(cl)))
 482                              & CONN_RFC1459)) {
 483                                 /* SQUERY command but RFC 1459 link: convert
 484                                  * request to PRIVMSG command */
 485                                 Req->command = "PRIVMSG";
 486                         }
 487 #endif
 488
 489                         if (Client_HasMode(cl, 'C')) {
 490                                 cl2chan = Channel_FirstChannelOf(cl);
 491                                 while (cl2chan) {
 492                                         chan = Channel_GetChannel(cl2chan);
 493                                         if (Channel_IsMemberOf(chan, from))
 494                                                 break;
 495                                         cl2chan = Channel_NextChannelOf(cl, cl2chan);
 496                                 }
 497                                 if (!cl2chan) {
 498                                         if (SendErrors && !IRC_WriteStrClient(
 499                                             from, ERR_NOTONSAMECHANNEL_MSG,
 500                                             Client_ID(from), Client_ID(cl)))
 501                                                 return DISCONNECTED;
 502                                         goto send_next_target;
 503                                 }
 504                         }
 505
 506                         if (SendErrors && (Client_Type(Client) != CLIENT_SERVER)
 507                             && strchr(Client_Modes(cl), 'a')) {
 508                                 /* Target is away */
 509                                 if (!IRC_WriteStrClient(from, RPL_AWAY_MSG,
 510                                                         Client_ID(from),
 511                                                         Client_ID(cl),
 512                                                         Client_Away(cl)))
 513                                         return DISCONNECTED;
 514                         }
 515                         if (Client_Conn(from) > NONE) {
 516                                 Conn_UpdateIdle(Client_Conn(from));
 517                         }
 518                         if (!IRC_WriteStrClientPrefix(cl, from, "%s %s :%s",
 519                                                       Req->command, Client_ID(cl),
 520                                                       Req->argv[1]))
 521                                 return DISCONNECTED;
 522                 } else if (ForceType != CLIENT_SERVICE
 523                            && (chan = Channel_Search(currentTarget))) {
 524                         if (!Channel_Write(chan, from, Client, Req->command,
 525                                            SendErrors, Req->argv[1]))
 526                                         return DISCONNECTED;
 527                 } else if (ForceType != CLIENT_SERVICE
 528                         /* $#: server/target mask, RFC 2812, sec. 3.3.1 */
 529                            && strchr("$#", currentTarget[0])
 530                            && strchr(currentTarget, '.')) {
 531                         /* targetmask */
 532                         if (!Send_Message_Mask(from, Req->command, currentTarget,
 533                                                Req->argv[1], SendErrors))
 534                                 return DISCONNECTED;
 535                 } else {
 536                         if (!SendErrors)
 537                                 return CONNECTED;
 538                         if (!IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG,
 539                                                 Client_ID(from), currentTarget))
 540                                 return DISCONNECTED;
 541                 }
 542
 543         send_next_target:
 544                 currentTarget = strtok_r(NULL, ",", &lastCurrentTarget);
 545                 if (currentTarget)
 546                         Conn_SetPenalty(Client_Conn(Client), 1);
 547         }
 548
 549         return CONNECTED;
 550 } /* Send_Message */
 551
 552
 553 static bool
 554 Send_Message_Mask(CLIENT * from, char * command, char * targetMask,
 555                   char * message, bool SendErrors)
 556 {
 557         CLIENT *cl;
 558         bool client_match;
 559         char *mask = targetMask + 1;
 560         const char *check_wildcards;
 561
 562         cl = NULL;
 563
 564         if (strchr(Client_Modes(from), 'o') == NULL) {
 565                 if (!SendErrors)
 566                         return true;
 567                 return IRC_WriteStrClient(from, ERR_NOPRIVILEGES_MSG,
 568                                           Client_ID(from));
 569         }
 570
 571         /*
 572          * RFC 2812, sec. 3.3.1 requires that targetMask have at least one
 573          * dot (".") and no wildcards ("*", "?") following the last one.
 574          */
 575         check_wildcards = strrchr(targetMask, '.');
 576         assert(check_wildcards != NULL);
 577         if (check_wildcards &&
 578                 check_wildcards[strcspn(check_wildcards, "*?")])
 579         {
 580                 if (!SendErrors)
 581                         return true;
 582                 return IRC_WriteStrClient(from, ERR_WILDTOPLEVEL, targetMask);
 583         }
 584
 585         /* #: hostmask, see RFC 2812, sec. 3.3.1 */
 586         if (targetMask[0] == '#') {
 587                 for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
 588                         if (Client_Type(cl) != CLIENT_USER)
 589                                 continue;
 590                         client_match = MatchCaseInsensitive(mask, Client_Hostname(cl));
 591                         if (client_match)
 592                                 if (!IRC_WriteStrClientPrefix(cl, from, "%s %s :%s",
 593                                                 command, Client_ID(cl), message))
 594                                         return false;
 595                 }
 596         } else {
 597                 assert(targetMask[0] == '$'); /* $: server mask, see RFC 2812, sec. 3.3.1 */
 598                 for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
 599                         if (Client_Type(cl) != CLIENT_USER)
 600                                 continue;
 601                         client_match = MatchCaseInsensitive(mask,
 602                                         Client_ID(Client_Introducer(cl)));
 603                         if (client_match)
 604                                 if (!IRC_WriteStrClientPrefix(cl, from, "%s %s :%s",
 605                                                 command, Client_ID(cl), message))
 606                                         return false;
 607                 }
 608         }
 609         return CONNECTED;
 610 } /* Send_Message_Mask */
 611
 612
 613 /* -eof- */