src/ngircd/irc-info.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001-2008 Alexander Barton (alex@barton.de)
   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  * IRC info commands
  12  */
  13
  14
  15 #include "portab.h"
  16
  17 #include "imp.h"
  18 #include <assert.h>
  19 #include <errno.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <strings.h>
  24
  25 #include "ngircd.h"
  26 #include "conn-func.h"
  27 #include "conn-zip.h"
  28 #include "client.h"
  29 #include "channel.h"
  30 #include "resolve.h"
  31 #include "conf.h"
  32 #include "defines.h"
  33 #include "log.h"
  34 #include "messages.h"
  35 #include "match.h"
  36 #include "tool.h"
  37 #include "parse.h"
  38 #include "irc-write.h"
  39
  40 #include "exp.h"
  41 #include "irc-info.h"
  42
  43
  44 GLOBAL bool
  45 IRC_ADMIN(CLIENT *Client, REQUEST *Req )
  46 {
  47         CLIENT *target, *prefix;
  48
  49         assert( Client != NULL );
  50         assert( Req != NULL );
  51
  52         /* Falsche Anzahl Parameter? */
  53         if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  54
  55         /* Ziel suchen */
  56         if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
  57         else target = Client_ThisServer( );
  58
  59         /* Prefix ermitteln */
  60         if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
  61         else prefix = Client;
  62         if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
  63
  64         /* An anderen Server weiterleiten? */
  65         if( target != Client_ThisServer( ))
  66         {
  67                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
  68
  69                 /* forwarden */
  70                 IRC_WriteStrClientPrefix( target, prefix, "ADMIN %s", Req->argv[0] );
  71                 return CONNECTED;
  72         }
  73
  74         /* mit Versionsinfo antworten */
  75         if( ! IRC_WriteStrClient( Client, RPL_ADMINME_MSG, Client_ID( prefix ), Conf_ServerName )) return DISCONNECTED;
  76         if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC1_MSG, Client_ID( prefix ), Conf_ServerAdmin1 )) return DISCONNECTED;
  77         if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC2_MSG, Client_ID( prefix ), Conf_ServerAdmin2 )) return DISCONNECTED;
  78         if( ! IRC_WriteStrClient( Client, RPL_ADMINEMAIL_MSG, Client_ID( prefix ), Conf_ServerAdminMail )) return DISCONNECTED;
  79
  80         IRC_SetPenalty( Client, 1 );
  81         return CONNECTED;
  82 } /* IRC_ADMIN */
  83
  84
  85 /**
  86  * Handler for the IRC command "INFO".
  87  * See RFC 2812 section 3.4.10.
  88  */
  89 GLOBAL bool
  90 IRC_INFO(CLIENT * Client, REQUEST * Req)
  91 {
  92         CLIENT *target, *prefix;
  93         char msg[510];
  94
  95         assert(Client != NULL);
  96         assert(Req != NULL);
  97
  98         /* Wrong number of parameters? */
  99         if (Req->argc > 1)
 100                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 101                                           Client_ID(Client), Req->command);
 102
 103         /* Determine prefix */
 104         if (Client_Type(Client) == CLIENT_SERVER)
 105                 prefix = Client_Search(Req->prefix);
 106         else
 107                 prefix = Client;
 108         if (!prefix)
 109                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
 110                                           Client_ID(Client), Req->prefix);
 111
 112         /* Look for a target */
 113         if (Req->argc > 0)
 114                 target = Client_Search(Req->argv[0]);
 115         else
 116                 target = Client_ThisServer();
 117
 118         /* Make sure that the target is a server */
 119         if (target && Client_Type(target) != CLIENT_SERVER)
 120                 target = Client_Introducer(target);
 121
 122         if (!target)
 123                 return IRC_WriteStrClient(prefix, ERR_NOSUCHSERVER_MSG,
 124                                           Client_ID(prefix), Req->argv[0]);
 125
 126         /* Pass on to another server? */
 127         if (target != Client_ThisServer()) {
 128                 IRC_WriteStrClientPrefix(target, prefix, "INFO %s",
 129                                          Req->argv[0]);
 130                 return CONNECTED;
 131         }
 132
 133         if (!IRC_WriteStrClient(Client, RPL_INFO_MSG, Client_ID(prefix),
 134                                 NGIRCd_Version))
 135                 return DISCONNECTED;
 136
 137         strlcpy(msg, "Server has been started ", sizeof(msg));
 138         strlcat(msg, NGIRCd_StartStr, sizeof(msg));
 139         if (!IRC_WriteStrClient(Client, RPL_INFO_MSG, Client_ID(prefix), msg))
 140                 return DISCONNECTED;
 141
 142         if (!IRC_WriteStrClient(Client, RPL_ENDOFINFO_MSG, Client_ID(prefix)))
 143                 return DISCONNECTED;
 144
 145         IRC_SetPenalty(Client, 2);
 146         return CONNECTED;
 147 } /* IRC_INFO */
 148
 149
 150 GLOBAL bool
 151 IRC_ISON( CLIENT *Client, REQUEST *Req )
 152 {
 153         char rpl[COMMAND_LEN];
 154         CLIENT *c;
 155         char *ptr;
 156         int i;
 157
 158         assert( Client != NULL );
 159         assert( Req != NULL );
 160
 161         /* Falsche Anzahl Parameter? */
 162         if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 163
 164         strlcpy( rpl, RPL_ISON_MSG, sizeof rpl );
 165         for( i = 0; i < Req->argc; i++ )
 166         {
 167                 ptr = strtok( Req->argv[i], " " );
 168                 while( ptr )
 169                 {
 170                         ngt_TrimStr( ptr );
 171                         c = Client_Search( ptr );
 172                         if( c && ( Client_Type( c ) == CLIENT_USER ))
 173                         {
 174                                 /* Dieser Nick ist "online" */
 175                                 strlcat( rpl, ptr, sizeof( rpl ));
 176                                 strlcat( rpl, " ", sizeof( rpl ));
 177                         }
 178                         ptr = strtok( NULL, " " );
 179                 }
 180         }
 181         ngt_TrimLastChr(rpl, ' ');
 182
 183         return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
 184 } /* IRC_ISON */
 185
 186
 187 GLOBAL bool
 188 IRC_LINKS( CLIENT *Client, REQUEST *Req )
 189 {
 190         CLIENT *target, *from, *c;
 191         char *mask;
 192
 193         assert( Client != NULL );
 194         assert( Req != NULL );
 195
 196         /* Falsche Anzahl Parameter? */
 197         if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 198
 199         /* Server-Mask ermitteln */
 200         if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1];
 201         else mask = "*";
 202
 203         /* Absender ermitteln */
 204         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 205         else from = Client;
 206         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 207
 208         /* An anderen Server forwarden? */
 209         if( Req->argc == 2 )
 210         {
 211                 target = Client_Search( Req->argv[0] );
 212                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 213                 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] );
 214         }
 215
 216         /* Wer ist der Absender? */
 217         if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
 218         else target = Client;
 219         if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 220
 221         c = Client_First( );
 222         while( c )
 223         {
 224                 if( Client_Type( c ) == CLIENT_SERVER )
 225                 {
 226                         if( ! IRC_WriteStrClient( target, RPL_LINKS_MSG, Client_ID( target ), Client_ID( c ), Client_ID( Client_TopServer( c ) ? Client_TopServer( c ) : Client_ThisServer( )), Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
 227                 }
 228                 c = Client_Next( c );
 229         }
 230
 231         IRC_SetPenalty( target, 1 );
 232         return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask );
 233 } /* IRC_LINKS */
 234
 235
 236 GLOBAL bool
 237 IRC_LUSERS( CLIENT *Client, REQUEST *Req )
 238 {
 239         CLIENT *target, *from;
 240
 241         assert( Client != NULL );
 242         assert( Req != NULL );
 243
 244         /* Falsche Anzahl Parameter? */
 245         if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 246
 247         /* Absender ermitteln */
 248         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 249         else from = Client;
 250         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 251
 252         /* An anderen Server forwarden? */
 253         if( Req->argc == 2 )
 254         {
 255                 target = Client_Search( Req->argv[1] );
 256                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 257                 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] );
 258         }
 259
 260         /* Wer ist der Absender? */
 261         if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
 262         else target = Client;
 263         if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 264
 265         IRC_Send_LUSERS( target );
 266
 267         IRC_SetPenalty( target, 1 );
 268         return CONNECTED;
 269 } /* IRC_LUSERS */
 270
 271
 272 /**
 273  * List registered services.
 274  * This function is a dummy that immediately returns RPL_SERVLISTEND.
 275  */
 276 GLOBAL bool
 277 IRC_SERVLIST(CLIENT *Client, REQUEST *Req)
 278 {
 279         assert(Client != NULL);
 280         assert(Req != NULL);
 281
 282         if (Req->argc > 2)
 283                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 284                                           Client_ID(Client), Req->command);
 285
 286         return IRC_WriteStrClient(Client, RPL_SERVLISTEND_MSG, Client_ID(Client),
 287                                   Req->argc > 0 ? Req->argv[0] : "*",
 288                                   Req->argc > 1 ? Req->argv[1] : "0");
 289 } /* IRC_SERVLIST */
 290
 291
 292 GLOBAL bool
 293 IRC_MOTD( CLIENT *Client, REQUEST *Req )
 294 {
 295         CLIENT *from, *target;
 296
 297         assert( Client != NULL );
 298         assert( Req != NULL );
 299
 300         /* Falsche Anzahl Parameter? */
 301         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 302
 303         /* From aus Prefix ermitteln */
 304         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 305         else from = Client;
 306         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 307
 308         if( Req->argc == 1 )
 309         {
 310                 /* an anderen Server forwarden */
 311                 target = Client_Search( Req->argv[0] );
 312                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 313
 314                 if( target != Client_ThisServer( ))
 315                 {
 316                         /* Ok, anderer Server ist das Ziel: forwarden */
 317                         return IRC_WriteStrClientPrefix( target, from, "MOTD %s", Req->argv[0] );
 318                 }
 319         }
 320
 321         IRC_SetPenalty( from, 3 );
 322         return IRC_Show_MOTD( from );
 323 } /* IRC_MOTD */
 324
 325
 326 GLOBAL bool
 327 IRC_NAMES( CLIENT *Client, REQUEST *Req )
 328 {
 329         char rpl[COMMAND_LEN], *ptr;
 330         CLIENT *target, *from, *c;
 331         CHANNEL *chan;
 332
 333         assert( Client != NULL );
 334         assert( Req != NULL );
 335
 336         /* Falsche Anzahl Parameter? */
 337         if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 338
 339         /* From aus Prefix ermitteln */
 340         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 341         else from = Client;
 342         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 343
 344         if( Req->argc == 2 )
 345         {
 346                 /* an anderen Server forwarden */
 347                 target = Client_Search( Req->argv[1] );
 348                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 349
 350                 if( target != Client_ThisServer( ))
 351                 {
 352                         /* Ok, anderer Server ist das Ziel: forwarden */
 353                         return IRC_WriteStrClientPrefix( target, from, "NAMES %s :%s", Req->argv[0], Req->argv[1] );
 354                 }
 355         }
 356
 357         if( Req->argc > 0 )
 358         {
 359                 /* bestimmte Channels durchgehen */
 360                 ptr = strtok( Req->argv[0], "," );
 361                 while( ptr )
 362                 {
 363                         chan = Channel_Search( ptr );
 364                         if( chan )
 365                         {
 366                                 /* Namen ausgeben */
 367                                 if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
 368                         }
 369                         if( ! IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), ptr )) return DISCONNECTED;
 370
 371                         /* naechsten Namen ermitteln */
 372                         ptr = strtok( NULL, "," );
 373                 }
 374                 return CONNECTED;
 375         }
 376
 377         /* alle Channels durchgehen */
 378         chan = Channel_First( );
 379         while( chan )
 380         {
 381                 /* Namen ausgeben */
 382                 if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
 383
 384                 /* naechster Channel */
 385                 chan = Channel_Next( chan );
 386         }
 387
 388         /* Nun noch alle Clients ausgeben, die in keinem Channel sind */
 389         c = Client_First( );
 390         snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
 391         while( c )
 392         {
 393                 if(( Client_Type( c ) == CLIENT_USER ) && ( Channel_FirstChannelOf( c ) == NULL ) && ( ! strchr( Client_Modes( c ), 'i' )))
 394                 {
 395                         /* Okay, das ist ein User: anhaengen */
 396                         if( rpl[strlen( rpl ) - 1] != ':' ) strlcat( rpl, " ", sizeof( rpl ));
 397                         strlcat( rpl, Client_ID( c ), sizeof( rpl ));
 398
 399                         if( strlen( rpl ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
 400                         {
 401                                 /* Zeile wird zu lang: senden! */
 402                                 if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
 403                                 snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
 404                         }
 405                 }
 406
 407                 /* naechster Client */
 408                 c = Client_Next( c );
 409         }
 410         if( rpl[strlen( rpl ) - 1] != ':')
 411         {
 412                 /* es wurden User gefunden */
 413                 if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
 414         }
 415
 416         IRC_SetPenalty( from, 1 );
 417         return IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), "*" );
 418 } /* IRC_NAMES */
 419
 420
 421 static unsigned int
 422 t_diff(time_t *t, const time_t div)
 423 {
 424         time_t diff, remain;
 425
 426         diff = *t / div;
 427
 428         remain = diff * div;
 429         *t -= remain;
 430
 431         return diff;
 432 }
 433
 434
 435 static unsigned int
 436 uptime_days(time_t *now)
 437 {
 438         return t_diff(now, 60 * 60 * 24);
 439 }
 440
 441
 442 static unsigned int
 443 uptime_hrs(time_t *now)
 444 {
 445         return t_diff(now, 60 * 60);
 446 }
 447
 448
 449 static unsigned int
 450 uptime_mins(time_t *now)
 451 {
 452          return t_diff(now, 60);
 453 }
 454
 455
 456 GLOBAL bool
 457 IRC_STATS( CLIENT *Client, REQUEST *Req )
 458 {
 459         CLIENT *from, *target, *cl;
 460         CONN_ID con;
 461         char query;
 462         COMMAND *cmd;
 463         time_t time_now;
 464         unsigned int days, hrs, mins;
 465
 466         assert( Client != NULL );
 467         assert( Req != NULL );
 468
 469         /* Falsche Anzahl Parameter? */
 470         if (Req->argc > 2)
 471                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 472
 473         /* From aus Prefix ermitteln */
 474         if (Client_Type(Client) == CLIENT_SERVER)
 475                 from = Client_Search(Req->prefix);
 476         else
 477                 from = Client;
 478
 479         if (! from)
 480                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix);
 481
 482         if (Req->argc == 2) {
 483                 /* an anderen Server forwarden */
 484                 target = Client_Search( Req->argv[1] );
 485                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
 486                         return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 487
 488                 if( target != Client_ThisServer()) {
 489                         /* Ok, anderer Server ist das Ziel: forwarden */
 490                         return IRC_WriteStrClientPrefix( target, from, "STATS %s %s", Req->argv[0], Req->argv[1] );
 491                 }
 492         }
 493
 494         if (Req->argc > 0)
 495                 query = Req->argv[0][0] ? Req->argv[0][0] : '*';
 496         else
 497                 query = '*';
 498
 499         switch (query) {
 500                 case 'l':       /* Links */
 501                 case 'L':
 502                         time_now = time(NULL);
 503                         for (con = Conn_First(); con != NONE ;con = Conn_Next(con)) {
 504                                 cl = Conn_GetClient(con);
 505                                 if (!cl)
 506                                         continue;
 507                                 if ((Client_Type(cl) == CLIENT_SERVER) || (cl == Client)) {
 508                                         /* Server link or our own connection */
 509 #ifdef ZLIB
 510                                         if (Conn_Options(con) & CONN_ZIP) {
 511                                                 if (!IRC_WriteStrClient(from, RPL_STATSLINKINFOZIP_MSG,
 512                                                         Client_ID(from), Client_Mask(cl), Conn_SendQ(con),
 513                                                         Conn_SendMsg(con), Zip_SendBytes(con), Conn_SendBytes(con),
 514                                                         Conn_RecvMsg(con), Zip_RecvBytes(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 515                                                                 return DISCONNECTED;
 516                                                 continue;
 517                                         }
 518 #endif
 519                                         if (!IRC_WriteStrClient(from, RPL_STATSLINKINFO_MSG, Client_ID(from),
 520                                                 Client_Mask(cl), Conn_SendQ(con), Conn_SendMsg(con), Conn_SendBytes(con),
 521                                                 Conn_RecvMsg(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 522                                                         return DISCONNECTED;
 523                                 }
 524                         }
 525                         break;
 526                 case 'm':       /* IRC-Commands */
 527                 case 'M':
 528                         cmd = Parse_GetCommandStruct( );
 529                         for (; cmd->name ; cmd++) {
 530                                 if (cmd->lcount == 0 && cmd->rcount == 0)
 531                                         continue;
 532                                 if (!IRC_WriteStrClient(from, RPL_STATSCOMMANDS_MSG, Client_ID(from),
 533                                                 cmd->name, cmd->lcount, cmd->bytes, cmd->rcount))
 534                                                         return DISCONNECTED;
 535                         }
 536                         break;
 537                 case 'u':       /* server uptime */
 538                 case 'U':
 539                         time_now = time(NULL) - NGIRCd_Start;
 540                         days = uptime_days(&time_now);
 541                         hrs = uptime_hrs(&time_now);
 542                         mins = uptime_mins(&time_now);
 543                         if (!IRC_WriteStrClient(from, RPL_STATSUPTIME, Client_ID(from),
 544                                         days, hrs, mins, (unsigned int) time_now))
 545                                                 return DISCONNECTED;
 546                         break;
 547         }
 548
 549         IRC_SetPenalty(from, 2);
 550         return IRC_WriteStrClient(from, RPL_ENDOFSTATS_MSG, Client_ID(from), query);
 551 } /* IRC_STATS */
 552
 553
 554 /**
 555  * Handler for the IRC command "SUMMON".
 556  * See RFC 2812 section 4.5. ngIRCd doesn't implement this functionality and
 557  * therefore answers with ERR_SUMMONDISABLED.
 558  */
 559 GLOBAL bool
 560 IRC_SUMMON(CLIENT * Client, REQUEST * Req)
 561 {
 562         return IRC_WriteStrClient(Client, ERR_SUMMONDISABLED_MSG,
 563                                   Client_ID(Client), Req->command);
 564 } /* IRC_SUMMON */
 565
 566
 567 GLOBAL bool
 568 IRC_TIME( CLIENT *Client, REQUEST *Req )
 569 {
 570         CLIENT *from, *target;
 571         char t_str[64];
 572         time_t t;
 573
 574         assert( Client != NULL );
 575         assert( Req != NULL );
 576
 577         /* Falsche Anzahl Parameter? */
 578         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 579
 580         /* From aus Prefix ermitteln */
 581         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 582         else from = Client;
 583         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 584
 585         if( Req->argc == 1 )
 586         {
 587                 /* an anderen Server forwarden */
 588                 target = Client_Search( Req->argv[0] );
 589                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
 590
 591                 if( target != Client_ThisServer( ))
 592                 {
 593                         /* Ok, anderer Server ist das Ziel: forwarden */
 594                         return IRC_WriteStrClientPrefix( target, from, "TIME %s", Req->argv[0] );
 595                 }
 596         }
 597
 598         t = time( NULL );
 599         (void)strftime( t_str, 60, "%A %B %d %Y -- %H:%M %Z", localtime( &t ));
 600         return IRC_WriteStrClient( from, RPL_TIME_MSG, Client_ID( from ), Client_ID( Client_ThisServer( )), t_str );
 601 } /* IRC_TIME */
 602
 603
 604 GLOBAL bool
 605 IRC_USERHOST( CLIENT *Client, REQUEST *Req )
 606 {
 607         char rpl[COMMAND_LEN];
 608         CLIENT *c;
 609         int max, i;
 610
 611         assert( Client != NULL );
 612         assert( Req != NULL );
 613
 614         /* Falsche Anzahl Parameter? */
 615         if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 616
 617         if( Req->argc > 5 ) max = 5;
 618         else max = Req->argc;
 619
 620         strlcpy( rpl, RPL_USERHOST_MSG, sizeof rpl );
 621         for( i = 0; i < max; i++ )
 622         {
 623                 c = Client_Search( Req->argv[i] );
 624                 if( c && ( Client_Type( c ) == CLIENT_USER ))
 625                 {
 626                         /* Dieser Nick ist "online" */
 627                         strlcat( rpl, Client_ID( c ), sizeof( rpl ));
 628                         if( Client_HasMode( c, 'o' )) strlcat( rpl, "*", sizeof( rpl ));
 629                         strlcat( rpl, "=", sizeof( rpl ));
 630                         if( Client_HasMode( c, 'a' )) strlcat( rpl, "-", sizeof( rpl ));
 631                         else strlcat( rpl, "+", sizeof( rpl ));
 632                         strlcat( rpl, Client_User( c ), sizeof( rpl ));
 633                         strlcat( rpl, "@", sizeof( rpl ));
 634                         strlcat( rpl, Client_Hostname( c ), sizeof( rpl ));
 635                         strlcat( rpl, " ", sizeof( rpl ));
 636                 }
 637         }
 638         ngt_TrimLastChr( rpl, ' ');
 639
 640         return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
 641 } /* IRC_USERHOST */
 642
 643
 644 /**
 645  * Handler for the IRC command "USERS".
 646  * See RFC 2812 section 4.6. As suggested there the command is disabled.
 647  */
 648 GLOBAL bool
 649 IRC_USERS(CLIENT * Client, REQUEST * Req)
 650 {
 651         return IRC_WriteStrClient(Client, ERR_USERSDISABLED_MSG,
 652                                   Client_ID(Client), Req->command);
 653 } /* IRC_USERS */
 654
 655
 656 GLOBAL bool
 657 IRC_VERSION( CLIENT *Client, REQUEST *Req )
 658 {
 659         CLIENT *target, *prefix;
 660
 661         assert( Client != NULL );
 662         assert( Req != NULL );
 663
 664         /* Falsche Anzahl Parameter? */
 665         if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 666
 667         /* Ziel suchen */
 668         if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
 669         else target = Client_ThisServer( );
 670
 671         /* Prefix ermitteln */
 672         if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
 673         else prefix = Client;
 674         if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 675
 676         /* An anderen Server weiterleiten? */
 677         if( target != Client_ThisServer( ))
 678         {
 679                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
 680
 681                 /* forwarden */
 682                 IRC_WriteStrClientPrefix( target, prefix, "VERSION %s", Req->argv[0] );
 683                 return CONNECTED;
 684         }
 685
 686         /* send version information */
 687         IRC_SetPenalty(Client, 1);
 688         return IRC_WriteStrClient(Client, RPL_VERSION_MSG, Client_ID(prefix),
 689                                   PACKAGE_NAME, PACKAGE_VERSION,
 690                                   NGIRCd_DebugLevel, Conf_ServerName,
 691                                   NGIRCd_VersionAddition);
 692 } /* IRC_VERSION */
 693
 694
 695 static bool
 696 write_whoreply(CLIENT *Client, CLIENT *c, const char *channelname, const char *flags)
 697 {
 698         return IRC_WriteStrClient(Client, RPL_WHOREPLY_MSG, Client_ID(Client), channelname,
 699                         Client_User(c), Client_Hostname(c), Client_ID(Client_Introducer(c)), Client_ID(c),
 700                         flags, Client_Hops(c), Client_Info(c));
 701 }
 702
 703
 704 static const char *
 705 who_flags_status(const char *client_modes)
 706 {
 707         if (strchr(client_modes, 'a'))
 708                 return "G"; /* away */
 709         return "H";
 710 }
 711
 712
 713 static const char *
 714 who_flags_qualifier(const char *chan_user_modes)
 715 {
 716         if (strchr(chan_user_modes, 'o'))
 717                 return "@";
 718         else if (strchr(chan_user_modes, 'v'))
 719                 return "+";
 720         return "";
 721 }
 722
 723
 724 static bool
 725 IRC_Send_WHO(CLIENT *Client, CHANNEL *Chan, bool OnlyOps)
 726 {
 727         bool is_visible, is_member, is_ircop;
 728         CL2CHAN *cl2chan;
 729         const char *client_modes;
 730         const char *chan_user_modes;
 731         char flags[8];
 732         CLIENT *c;
 733
 734         assert( Client != NULL );
 735         assert( Chan != NULL );
 736
 737         is_member = Channel_IsMemberOf(Chan, Client);
 738
 739         /* Secret channel? */
 740         if (!is_member && strchr(Channel_Modes(Chan), 's'))
 741                 return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
 742
 743         cl2chan = Channel_FirstMember(Chan);
 744         for (; cl2chan ; cl2chan = Channel_NextMember(Chan, cl2chan)) {
 745                 c = Channel_GetClient(cl2chan);
 746
 747                 client_modes = Client_Modes(c);
 748                 is_ircop = strchr(client_modes, 'o') != NULL;
 749                 if (OnlyOps && !is_ircop)
 750                         continue;
 751
 752                 is_visible = strchr(client_modes, 'i') == NULL;
 753                 if (is_member || is_visible) {
 754                         strcpy(flags, who_flags_status(client_modes));
 755                         if (is_ircop)
 756                                 strlcat(flags, "*", sizeof(flags));
 757
 758                         chan_user_modes = Channel_UserModes(Chan, c);
 759                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 760
 761                         if (!write_whoreply(Client, c, Channel_Name(Chan), flags))
 762                                 return DISCONNECTED;
 763                 }
 764         }
 765         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
 766 } /* IRC_Send_WHO */
 767
 768
 769 GLOBAL bool
 770 IRC_WHO( CLIENT *Client, REQUEST *Req )
 771 {
 772         bool only_ops, have_arg, client_match;
 773         const char *channelname, *client_modes, *chan_user_modes;
 774         char pattern[COMMAND_LEN];
 775         char flags[4];
 776         CL2CHAN *cl2chan;
 777         CHANNEL *chan, *cn;
 778         CLIENT *c;
 779
 780         assert( Client != NULL );
 781         assert( Req != NULL );
 782
 783         if (Req->argc > 2)
 784                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 785
 786         only_ops = false;
 787         have_arg = false;
 788
 789         if (Req->argc == 2) {
 790                 if (strcmp(Req->argv[1], "o") == 0)
 791                         only_ops = true;
 792 #ifdef STRICT_RFC
 793                 else return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 794 #endif
 795         }
 796
 797         IRC_SetPenalty(Client, 1);
 798         if (Req->argc >= 1) { /* Channel or Mask. */
 799                 chan = Channel_Search(Req->argv[0]);
 800                 if (chan)
 801                         return IRC_Send_WHO(Client, chan, only_ops);
 802                 if (strcmp(Req->argv[0], "0") != 0) { /* RFC stupidity, same as no arguments */
 803                         have_arg = true;
 804                         strlcpy(pattern, Req->argv[0], sizeof(pattern));
 805                         ngt_LowerStr(pattern);
 806                         IRC_SetPenalty(Client, 3);
 807                 }
 808         }
 809
 810         for (c = Client_First(); c != NULL; c = Client_Next(c)) {
 811                 if (Client_Type(c) != CLIENT_USER)
 812                         continue;
 813                  /*
 814                   * RFC 2812, 3.6.1:
 815                   * In the absence of the parameter, all visible (users who aren't
 816                   * invisible (user mode +i) and who don't have a common channel
 817                   * with the requesting client) are listed.
 818                   *
 819                   * The same result can be achieved by using a [sic] of "0"
 820                   * or any wildcard which will end up matching every visible user.
 821                   *
 822                   * The [sic] passed to WHO is matched against users' host, server, real name and
 823                   * nickname if the channel cannot be found.
 824                   */
 825                 client_modes = Client_Modes(c);
 826                 if (strchr(client_modes, 'i'))
 827                         continue;
 828
 829                 if (only_ops && !strchr(client_modes, 'o'))
 830                         continue;
 831
 832                 if (have_arg) { /* match pattern against user host/server/name/nick */
 833                         client_match = MatchCaseInsensitive(pattern, Client_Hostname(c)); /* user's host */
 834                         if (!client_match)
 835                                 client_match = MatchCaseInsensitive(pattern, Client_ID(Client_Introducer(c))); /* server */
 836                         if (!client_match)
 837                                 client_match = Match(Req->argv[0], Client_Info(c)); /* realname */
 838                         if (!client_match)
 839                                 client_match = MatchCaseInsensitive(pattern, Client_ID(c)); /* nick name */
 840
 841                         if (!client_match) /* This isn't the client you're looking for */
 842                                 continue;
 843                 }
 844
 845                 strcpy(flags, who_flags_status(client_modes));
 846
 847                 if (strchr(client_modes, 'o')) /* this client is an operator */
 848                         strlcat(flags, "*", sizeof(flags));
 849
 850                 /* Search suitable channel */
 851                 cl2chan = Channel_FirstChannelOf(c);
 852                 while (cl2chan) {
 853                         cn = Channel_GetChannel(cl2chan);
 854                         if (Channel_IsMemberOf(cn, Client) ||
 855                                     !strchr(Channel_Modes(cn), 's'))
 856                         {
 857                                 channelname = Channel_Name(cn);
 858                                 break;
 859                         }
 860                         cl2chan = Channel_NextChannelOf(c, cl2chan);
 861                 }
 862                 if (cl2chan) {
 863                         chan = Channel_GetChannel(cl2chan);
 864                         chan_user_modes = Channel_UserModes(chan, c);
 865                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 866                 } else
 867                         channelname = "*";
 868
 869                 if (!write_whoreply(Client, c, channelname, flags))
 870                         return DISCONNECTED;
 871         }
 872
 873         if (Req->argc > 0)
 874                 channelname = Req->argv[0];
 875         else
 876                 channelname = "*";
 877
 878         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), channelname);
 879 } /* IRC_WHO */
 880
 881
 882 GLOBAL bool
 883 IRC_WHOIS( CLIENT *Client, REQUEST *Req )
 884 {
 885         CLIENT *from, *target, *c;
 886         char str[LINE_LEN + 1];
 887         CL2CHAN *cl2chan;
 888         CHANNEL *chan;
 889
 890         assert( Client != NULL );
 891         assert( Req != NULL );
 892
 893         /* Bad number of parameters? */
 894         if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 895
 896         /* Search client */
 897         c = Client_Search( Req->argv[Req->argc - 1] );
 898         if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
 899
 900         /* Search sender of the WHOIS */
 901         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 902         else from = Client;
 903         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 904
 905         /* Forward to other server? */
 906         if( Req->argc > 1 )
 907         {
 908                 /* Search target server (can be specified as nick of that server!) */
 909                 target = Client_Search( Req->argv[0] );
 910                 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 911         }
 912         else target = Client_ThisServer( );
 913
 914         assert( target != NULL );
 915
 916         if(( Client_NextHop( target ) != Client_ThisServer( )) && ( Client_Type( Client_NextHop( target )) == CLIENT_SERVER )) return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], Req->argv[1] );
 917
 918         /* Nick, user and name */
 919         if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
 920
 921         /* Server */
 922         if( ! IRC_WriteStrClient( from, RPL_WHOISSERVER_MSG, Client_ID( from ), Client_ID( c ), Client_ID( Client_Introducer( c )), Client_Info( Client_Introducer( c )))) return DISCONNECTED;
 923
 924         /* Channels */
 925         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 926         cl2chan = Channel_FirstChannelOf( c );
 927         while( cl2chan )
 928         {
 929                 chan = Channel_GetChannel( cl2chan );
 930                 assert( chan != NULL );
 931
 932                 /* next */
 933                 cl2chan = Channel_NextChannelOf( c, cl2chan );
 934
 935                 /* Secret channel? */
 936                 if( strchr( Channel_Modes( chan ), 's' ) && ! Channel_IsMemberOf( chan, Client )) continue;
 937
 938                 /* Concatenate channel names */
 939                 if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
 940                 if( strchr( Channel_UserModes( chan, c ), 'o' )) strlcat( str, "@", sizeof( str ));
 941                 else if( strchr( Channel_UserModes( chan, c ), 'v' )) strlcat( str, "+", sizeof( str ));
 942                 strlcat( str, Channel_Name( chan ), sizeof( str ));
 943
 944                 if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
 945                 {
 946                         /* Line becomes too long: send it! */
 947                         if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 948                         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 949                 }
 950         }
 951         if( str[strlen( str ) - 1] != ':')
 952         {
 953                 /* There is data left to send: */
 954                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 955         }
 956
 957         /* IRC-Operator? */
 958         if( Client_HasMode( c, 'o' ))
 959         {
 960                 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
 961         }
 962
 963         /* Idle and signon time (local clients only!) */
 964         if (Client_Conn(c) > NONE ) {
 965                 if (! IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
 966                         Client_ID(from), Client_ID(c),
 967                         (unsigned long)Conn_GetIdle(Client_Conn(c)),
 968                         (unsigned long)Conn_GetSignon(Client_Conn(c))))
 969                                 return DISCONNECTED;
 970         }
 971
 972         /* Away? */
 973         if( Client_HasMode( c, 'a' ))
 974         {
 975                 if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED;
 976         }
 977
 978         /* End of Whois */
 979         return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
 980 } /* IRC_WHOIS */
 981
 982
 983 static bool
 984 WHOWAS_EntryWrite(CLIENT *prefix, WHOWAS *entry)
 985 {
 986         char t_str[60];
 987
 988         (void)strftime(t_str, sizeof(t_str), "%a %b %d %H:%M:%S %Y",
 989                                         localtime(&entry->time));
 990
 991         if (!IRC_WriteStrClient(prefix, RPL_WHOWASUSER_MSG, Client_ID(prefix),
 992                         entry->id, entry->user, entry->host, entry->info))
 993                                 return DISCONNECTED;
 994
 995         return IRC_WriteStrClient(prefix, RPL_WHOISSERVER_MSG, Client_ID(prefix),
 996                   entry->id, entry->server, t_str);
 997 }
 998
 999 /**
1000  * IRC "WHOWAS" function.
1001  * This function implements the IRC command "WHOWHAS". It handles local
1002  * requests and request that should be forwarded to other servers.
1003  */
1004 GLOBAL bool
1005 IRC_WHOWAS( CLIENT *Client, REQUEST *Req )
1006 {
1007         CLIENT *target, *prefix;
1008         WHOWAS *whowas;
1009         char tok_buf[COMMAND_LEN];
1010         int max, last, count, i, nc;
1011         const char *nick;
1012
1013         assert( Client != NULL );
1014         assert( Req != NULL );
1015
1016         /* Wrong number of parameters? */
1017         if (Req->argc > 3)
1018                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
1019                                         Client_ID(Client), Req->command);
1020         if (Req->argc < 1)
1021                 return IRC_WriteStrClient(Client, ERR_NONICKNAMEGIVEN_MSG, Client_ID(Client));
1022
1023         /* Search target */
1024         if (Req->argc == 3)
1025                 target = Client_Search(Req->argv[2]);
1026         else
1027                 target = Client_ThisServer();
1028
1029         /* Get prefix */
1030         if (Client_Type(Client) == CLIENT_SERVER)
1031                 prefix = Client_Search(Req->prefix);
1032         else
1033                 prefix = Client;
1034
1035         if (!prefix)
1036                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
1037                                                 Client_ID(Client), Req->prefix);
1038
1039         /* Forward to other server? */
1040         if (target != Client_ThisServer()) {
1041                 if (!target || (Client_Type(target) != CLIENT_SERVER))
1042                         return IRC_WriteStrClient(prefix, ERR_NOSUCHSERVER_MSG,
1043                                         Client_ID(prefix), Req->argv[2]);
1044
1045                 /* Forward */
1046                 IRC_WriteStrClientPrefix( target, prefix, "WHOWAS %s %s %s",
1047                                           Req->argv[0], Req->argv[1],
1048                                           Req->argv[2] );
1049                 return CONNECTED;
1050         }
1051
1052         whowas = Client_GetWhowas( );
1053         last = Client_GetLastWhowasIndex( );
1054         if (last < 0)
1055                 last = 0;
1056
1057         max = DEFAULT_WHOWAS;
1058         if (Req->argc > 1) {
1059                 max = atoi(Req->argv[1]);
1060                 if (max < 1)
1061                         max = MAX_WHOWAS;
1062         }
1063
1064         /*
1065          * Break up the nick argument into a list of nicks, if applicable
1066          * Can't modify Req->argv[0] because we need it for RPL_ENDOFWHOWAS_MSG.
1067          */
1068         strlcpy(tok_buf, Req->argv[0], sizeof(tok_buf));
1069         nick = strtok(tok_buf, ",");
1070
1071         for (i=last, count=0; nick != NULL ; nick = strtok(NULL, ",")) {
1072                 nc = 0;
1073                 do {
1074                         /* Used entry? */
1075                         if (whowas[i].time > 0 && strcasecmp(nick, whowas[i].id) == 0) {
1076                                 if (!WHOWAS_EntryWrite(prefix, &whowas[i]))
1077                                         return DISCONNECTED;
1078                                 nc++;
1079                                 count++;
1080                         }
1081                         /* previous entry */
1082                         i--;
1083
1084                         /* "underflow", wrap around */
1085                         if (i < 0)
1086                                 i = MAX_WHOWAS - 1;
1087
1088                         if (nc && count >= max)
1089                                 break;
1090                 } while (i != last);
1091
1092                 if (nc == 0 && !IRC_WriteStrClient(prefix, ERR_WASNOSUCHNICK_MSG,
1093                                                 Client_ID(prefix), nick))
1094                         return DISCONNECTED;
1095         }
1096         return IRC_WriteStrClient(prefix, RPL_ENDOFWHOWAS_MSG, Client_ID(prefix), Req->argv[0]);
1097 } /* IRC_WHOWAS */
1098
1099
1100 GLOBAL bool
1101 IRC_Send_LUSERS( CLIENT *Client )
1102 {
1103         unsigned long cnt;
1104 #ifndef STRICT_RFC
1105         unsigned long max;
1106 #endif
1107
1108         assert( Client != NULL );
1109
1110         /* Users, services and serevers in the network */
1111         if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
1112
1113         /* Number of IRC operators */
1114         cnt = Client_OperCount( );
1115         if( cnt > 0 )
1116         {
1117                 if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1118         }
1119
1120         /* Unknown connections */
1121         cnt = Client_UnknownCount( );
1122         if( cnt > 0 )
1123         {
1124                 if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1125         }
1126
1127         /* Number of created channels */
1128         if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
1129
1130         /* Number of local users, services and servers */
1131         if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
1132
1133 #ifndef STRICT_RFC
1134         /* Maximum number of local users */
1135         cnt = Client_MyUserCount();
1136         max = Client_MyMaxUserCount();
1137         if (! IRC_WriteStrClient(Client, RPL_LOCALUSERS_MSG, Client_ID(Client),
1138                         cnt, max, cnt, max))
1139                 return DISCONNECTED;
1140         /* Maximum number of users in the network */
1141         cnt = Client_UserCount();
1142         max = Client_MaxUserCount();
1143         if(! IRC_WriteStrClient(Client, RPL_NETUSERS_MSG, Client_ID(Client),
1144                         cnt, max, cnt, max))
1145                 return DISCONNECTED;
1146 #endif
1147
1148         return CONNECTED;
1149 } /* IRC_Send_LUSERS */
1150
1151
1152 static bool
1153 Show_MOTD_Start(CLIENT *Client)
1154 {
1155         return IRC_WriteStrClient(Client, RPL_MOTDSTART_MSG,
1156                 Client_ID( Client ), Client_ID( Client_ThisServer( )));
1157 }
1158
1159 static bool
1160 Show_MOTD_Sendline(CLIENT *Client, const char *msg)
1161 {
1162         return IRC_WriteStrClient(Client, RPL_MOTD_MSG, Client_ID( Client ), msg);
1163 }
1164
1165 static bool
1166 Show_MOTD_End(CLIENT *Client)
1167 {
1168         return IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ));
1169 }
1170
1171
1172 GLOBAL bool
1173 IRC_Show_MOTD( CLIENT *Client )
1174 {
1175         char line[127];
1176         FILE *fd;
1177
1178         assert( Client != NULL );
1179
1180         if (Conf_MotdPhrase[0]) {
1181                 if (!Show_MOTD_Start(Client))
1182                         return DISCONNECTED;
1183                 if (!Show_MOTD_Sendline(Client, Conf_MotdPhrase))
1184                         return DISCONNECTED;
1185
1186                 return Show_MOTD_End(Client);
1187         }
1188
1189         fd = fopen( Conf_MotdFile, "r" );
1190         if( ! fd ) {
1191                 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1192                 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1193         }
1194
1195         if (!Show_MOTD_Start( Client )) {
1196                 fclose(fd);
1197                 return false;
1198         }
1199
1200         while (fgets( line, (int)sizeof line, fd )) {
1201                 ngt_TrimLastChr( line, '\n');
1202
1203                 if( ! Show_MOTD_Sendline( Client, line)) {
1204                         fclose( fd );
1205                         return false;
1206                 }
1207         }
1208         fclose(fd);
1209         return Show_MOTD_End(Client);
1210 } /* IRC_Show_MOTD */
1211
1212
1213 GLOBAL bool
1214 IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan )
1215 {
1216         bool is_visible, is_member;
1217         char str[LINE_LEN + 1];
1218         CL2CHAN *cl2chan;
1219         CLIENT *cl;
1220
1221         assert( Client != NULL );
1222         assert( Chan != NULL );
1223
1224         if( Channel_IsMemberOf( Chan, Client )) is_member = true;
1225         else is_member = false;
1226
1227         /* Secret channel? */
1228         if( ! is_member && strchr( Channel_Modes( Chan ), 's' )) return CONNECTED;
1229
1230         /* Alle Mitglieder suchen */
1231         snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1232         cl2chan = Channel_FirstMember( Chan );
1233         while( cl2chan )
1234         {
1235                 cl = Channel_GetClient( cl2chan );
1236
1237                 if( strchr( Client_Modes( cl ), 'i' )) is_visible = false;
1238                 else is_visible = true;
1239
1240                 if( is_member || is_visible )
1241                 {
1242                         /* Nick anhaengen */
1243                         if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
1244                         if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strlcat( str, "@", sizeof( str ));
1245                         else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strlcat( str, "+", sizeof( str ));
1246                         strlcat( str, Client_ID( cl ), sizeof( str ));
1247
1248                         if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
1249                         {
1250                                 /* Zeile wird zu lang: senden! */
1251                                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1252                                 snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1253                         }
1254                 }
1255
1256                 /* naechstes Mitglied suchen */
1257                 cl2chan = Channel_NextMember( Chan, cl2chan );
1258         }
1259         if( str[strlen( str ) - 1] != ':')
1260         {
1261                 /* Es sind noch Daten da, die gesendet werden muessen */
1262                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1263         }
1264
1265         return CONNECTED;
1266 } /* IRC_Send_NAMES */
1267
1268
1269
1270 /**
1271  * Send the ISUPPORT numeric (005).
1272  * This numeric indicates the features that are supported by this server.
1273  * See <http://www.irc.org/tech_docs/005.html> for details.
1274  */
1275 GLOBAL bool
1276 IRC_Send_ISUPPORT PARAMS((CLIENT * Client))
1277 {
1278         if (!IRC_WriteStrClient(Client, RPL_ISUPPORT1_MSG, Client_ID(Client),
1279                                 Conf_MaxJoins))
1280                 return DISCONNECTED;
1281         return IRC_WriteStrClient(Client, RPL_ISUPPORT2_MSG, Client_ID(Client),
1282                                   CHANNEL_NAME_LEN - 1, Conf_MaxNickLength - 1,
1283                                   COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1,
1284                                   COMMAND_LEN - 113);
1285 } /* IRC_Send_ISUPPORT */
1286
1287
1288 /* -eof- */