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 d)
 423 {
 424         time_t diff, remain;
 425
 426         diff = *t / d;
 427         remain = diff * d;
 428         *t -= remain;
 429
 430         return diff;
 431 }
 432
 433
 434 static unsigned int
 435 uptime_days(time_t *now)
 436 {
 437         return t_diff(now, 60 * 60 * 24);
 438 }
 439
 440
 441 static unsigned int
 442 uptime_hrs(time_t *now)
 443 {
 444         return t_diff(now, 60 * 60);
 445 }
 446
 447
 448 static unsigned int
 449 uptime_mins(time_t *now)
 450 {
 451          return t_diff(now, 60);
 452 }
 453
 454
 455 GLOBAL bool
 456 IRC_STATS( CLIENT *Client, REQUEST *Req )
 457 {
 458         CLIENT *from, *target, *cl;
 459         CONN_ID con;
 460         char query;
 461         COMMAND *cmd;
 462         time_t time_now;
 463         unsigned int days, hrs, mins;
 464
 465         assert( Client != NULL );
 466         assert( Req != NULL );
 467
 468         /* Falsche Anzahl Parameter? */
 469         if (Req->argc > 2)
 470                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 471
 472         /* From aus Prefix ermitteln */
 473         if (Client_Type(Client) == CLIENT_SERVER)
 474                 from = Client_Search(Req->prefix);
 475         else
 476                 from = Client;
 477
 478         if (! from)
 479                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix);
 480
 481         if (Req->argc == 2) {
 482                 /* an anderen Server forwarden */
 483                 target = Client_Search( Req->argv[1] );
 484                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
 485                         return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 486
 487                 if( target != Client_ThisServer()) {
 488                         /* Ok, anderer Server ist das Ziel: forwarden */
 489                         return IRC_WriteStrClientPrefix( target, from, "STATS %s %s", Req->argv[0], Req->argv[1] );
 490                 }
 491         }
 492
 493         if (Req->argc > 0)
 494                 query = Req->argv[0][0] ? Req->argv[0][0] : '*';
 495         else
 496                 query = '*';
 497
 498         switch (query) {
 499                 case 'l':       /* Links */
 500                 case 'L':
 501                         time_now = time(NULL);
 502                         for (con = Conn_First(); con != NONE ;con = Conn_Next(con)) {
 503                                 cl = Conn_GetClient(con);
 504                                 if (!cl)
 505                                         continue;
 506                                 if ((Client_Type(cl) == CLIENT_SERVER) || (cl == Client)) {
 507                                         /* Server link or our own connection */
 508 #ifdef ZLIB
 509                                         if (Conn_Options(con) & CONN_ZIP) {
 510                                                 if (!IRC_WriteStrClient(from, RPL_STATSLINKINFOZIP_MSG,
 511                                                         Client_ID(from), Client_Mask(cl), Conn_SendQ(con),
 512                                                         Conn_SendMsg(con), Zip_SendBytes(con), Conn_SendBytes(con),
 513                                                         Conn_RecvMsg(con), Zip_RecvBytes(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 514                                                                 return DISCONNECTED;
 515                                                 continue;
 516                                         }
 517 #endif
 518                                         if (!IRC_WriteStrClient(from, RPL_STATSLINKINFO_MSG, Client_ID(from),
 519                                                 Client_Mask(cl), Conn_SendQ(con), Conn_SendMsg(con), Conn_SendBytes(con),
 520                                                 Conn_RecvMsg(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 521                                                         return DISCONNECTED;
 522                                 }
 523                         }
 524                         break;
 525                 case 'm':       /* IRC-Commands */
 526                 case 'M':
 527                         cmd = Parse_GetCommandStruct( );
 528                         for (; cmd->name ; cmd++) {
 529                                 if (cmd->lcount == 0 && cmd->rcount == 0)
 530                                         continue;
 531                                 if (!IRC_WriteStrClient(from, RPL_STATSCOMMANDS_MSG, Client_ID(from),
 532                                                 cmd->name, cmd->lcount, cmd->bytes, cmd->rcount))
 533                                                         return DISCONNECTED;
 534                         }
 535                         break;
 536                 case 'u':       /* server uptime */
 537                 case 'U':
 538                         time_now = time(NULL) - NGIRCd_Start;
 539                         days = uptime_days(&time_now);
 540                         hrs = uptime_hrs(&time_now);
 541                         mins = uptime_mins(&time_now);
 542                         if (!IRC_WriteStrClient(from, RPL_STATSUPTIME, Client_ID(from),
 543                                         days, hrs, mins, (unsigned int) time_now))
 544                                                 return DISCONNECTED;
 545                         break;
 546         }
 547
 548         IRC_SetPenalty(from, 2);
 549         return IRC_WriteStrClient(from, RPL_ENDOFSTATS_MSG, Client_ID(from), query);
 550 } /* IRC_STATS */
 551
 552
 553 /**
 554  * Handler for the IRC command "SUMMON".
 555  * See RFC 2812 section 4.5. ngIRCd doesn't implement this functionality and
 556  * therefore answers with ERR_SUMMONDISABLED.
 557  */
 558 GLOBAL bool
 559 IRC_SUMMON(CLIENT * Client, REQUEST * Req)
 560 {
 561         return IRC_WriteStrClient(Client, ERR_SUMMONDISABLED_MSG,
 562                                   Client_ID(Client), Req->command);
 563 } /* IRC_SUMMON */
 564
 565
 566 GLOBAL bool
 567 IRC_TIME( CLIENT *Client, REQUEST *Req )
 568 {
 569         CLIENT *from, *target;
 570         char t_str[64];
 571         time_t t;
 572
 573         assert( Client != NULL );
 574         assert( Req != NULL );
 575
 576         /* Falsche Anzahl Parameter? */
 577         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 578
 579         /* From aus Prefix ermitteln */
 580         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 581         else from = Client;
 582         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 583
 584         if( Req->argc == 1 )
 585         {
 586                 /* an anderen Server forwarden */
 587                 target = Client_Search( Req->argv[0] );
 588                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
 589
 590                 if( target != Client_ThisServer( ))
 591                 {
 592                         /* Ok, anderer Server ist das Ziel: forwarden */
 593                         return IRC_WriteStrClientPrefix( target, from, "TIME %s", Req->argv[0] );
 594                 }
 595         }
 596
 597         t = time( NULL );
 598         (void)strftime( t_str, 60, "%A %B %d %Y -- %H:%M %Z", localtime( &t ));
 599         return IRC_WriteStrClient( from, RPL_TIME_MSG, Client_ID( from ), Client_ID( Client_ThisServer( )), t_str );
 600 } /* IRC_TIME */
 601
 602
 603 GLOBAL bool
 604 IRC_USERHOST( CLIENT *Client, REQUEST *Req )
 605 {
 606         char rpl[COMMAND_LEN];
 607         CLIENT *c;
 608         int max, i;
 609
 610         assert( Client != NULL );
 611         assert( Req != NULL );
 612
 613         /* Falsche Anzahl Parameter? */
 614         if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 615
 616         if( Req->argc > 5 ) max = 5;
 617         else max = Req->argc;
 618
 619         strlcpy( rpl, RPL_USERHOST_MSG, sizeof rpl );
 620         for( i = 0; i < max; i++ )
 621         {
 622                 c = Client_Search( Req->argv[i] );
 623                 if( c && ( Client_Type( c ) == CLIENT_USER ))
 624                 {
 625                         /* Dieser Nick ist "online" */
 626                         strlcat( rpl, Client_ID( c ), sizeof( rpl ));
 627                         if( Client_HasMode( c, 'o' )) strlcat( rpl, "*", sizeof( rpl ));
 628                         strlcat( rpl, "=", sizeof( rpl ));
 629                         if( Client_HasMode( c, 'a' )) strlcat( rpl, "-", sizeof( rpl ));
 630                         else strlcat( rpl, "+", sizeof( rpl ));
 631                         strlcat( rpl, Client_User( c ), sizeof( rpl ));
 632                         strlcat( rpl, "@", sizeof( rpl ));
 633                         strlcat( rpl, Client_Hostname( c ), sizeof( rpl ));
 634                         strlcat( rpl, " ", sizeof( rpl ));
 635                 }
 636         }
 637         ngt_TrimLastChr( rpl, ' ');
 638
 639         return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
 640 } /* IRC_USERHOST */
 641
 642
 643 /**
 644  * Handler for the IRC command "USERS".
 645  * See RFC 2812 section 4.6. As suggested there the command is disabled.
 646  */
 647 GLOBAL bool
 648 IRC_USERS(CLIENT * Client, REQUEST * Req)
 649 {
 650         return IRC_WriteStrClient(Client, ERR_USERSDISABLED_MSG,
 651                                   Client_ID(Client), Req->command);
 652 } /* IRC_USERS */
 653
 654
 655 GLOBAL bool
 656 IRC_VERSION( CLIENT *Client, REQUEST *Req )
 657 {
 658         CLIENT *target, *prefix;
 659
 660         assert( Client != NULL );
 661         assert( Req != NULL );
 662
 663         /* Falsche Anzahl Parameter? */
 664         if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 665
 666         /* Ziel suchen */
 667         if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
 668         else target = Client_ThisServer( );
 669
 670         /* Prefix ermitteln */
 671         if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
 672         else prefix = Client;
 673         if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 674
 675         /* An anderen Server weiterleiten? */
 676         if( target != Client_ThisServer( ))
 677         {
 678                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
 679
 680                 /* forwarden */
 681                 IRC_WriteStrClientPrefix( target, prefix, "VERSION %s", Req->argv[0] );
 682                 return CONNECTED;
 683         }
 684
 685         /* send version information */
 686         IRC_SetPenalty(Client, 1);
 687         return IRC_WriteStrClient(Client, RPL_VERSION_MSG, Client_ID(prefix),
 688                                   PACKAGE_NAME, PACKAGE_VERSION,
 689                                   NGIRCd_DebugLevel, Conf_ServerName,
 690                                   NGIRCd_VersionAddition);
 691 } /* IRC_VERSION */
 692
 693
 694 static bool
 695 write_whoreply(CLIENT *Client, CLIENT *c, const char *channelname, const char *flags)
 696 {
 697         return IRC_WriteStrClient(Client, RPL_WHOREPLY_MSG, Client_ID(Client), channelname,
 698                         Client_User(c), Client_Hostname(c), Client_ID(Client_Introducer(c)), Client_ID(c),
 699                         flags, Client_Hops(c), Client_Info(c));
 700 }
 701
 702
 703 static const char *
 704 who_flags_status(const char *client_modes)
 705 {
 706         if (strchr(client_modes, 'a'))
 707                 return "G"; /* away */
 708         return "H";
 709 }
 710
 711
 712 static const char *
 713 who_flags_qualifier(const char *chan_user_modes)
 714 {
 715         if (strchr(chan_user_modes, 'o'))
 716                 return "@";
 717         else if (strchr(chan_user_modes, 'v'))
 718                 return "+";
 719         return "";
 720 }
 721
 722
 723 static bool
 724 IRC_Send_WHO(CLIENT *Client, CHANNEL *Chan, bool OnlyOps)
 725 {
 726         bool is_visible, is_member, is_ircop;
 727         CL2CHAN *cl2chan;
 728         const char *client_modes;
 729         const char *chan_user_modes;
 730         char flags[8];
 731         CLIENT *c;
 732
 733         assert( Client != NULL );
 734         assert( Chan != NULL );
 735
 736         is_member = Channel_IsMemberOf(Chan, Client);
 737
 738         /* Secret channel? */
 739         if (!is_member && strchr(Channel_Modes(Chan), 's'))
 740                 return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
 741
 742         cl2chan = Channel_FirstMember(Chan);
 743         for (; cl2chan ; cl2chan = Channel_NextMember(Chan, cl2chan)) {
 744                 c = Channel_GetClient(cl2chan);
 745
 746                 client_modes = Client_Modes(c);
 747                 is_ircop = strchr(client_modes, 'o') != NULL;
 748                 if (OnlyOps && !is_ircop)
 749                         continue;
 750
 751                 is_visible = strchr(client_modes, 'i') == NULL;
 752                 if (is_member || is_visible) {
 753                         strcpy(flags, who_flags_status(client_modes));
 754                         if (is_ircop)
 755                                 strlcat(flags, "*", sizeof(flags));
 756
 757                         chan_user_modes = Channel_UserModes(Chan, c);
 758                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 759
 760                         if (!write_whoreply(Client, c, Channel_Name(Chan), flags))
 761                                 return DISCONNECTED;
 762                 }
 763         }
 764         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
 765 } /* IRC_Send_WHO */
 766
 767
 768 GLOBAL bool
 769 IRC_WHO( CLIENT *Client, REQUEST *Req )
 770 {
 771         bool only_ops, have_arg, client_match;
 772         const char *channelname, *client_modes, *chan_user_modes;
 773         char pattern[COMMAND_LEN];
 774         char flags[4];
 775         CL2CHAN *cl2chan;
 776         CHANNEL *chan, *cn;
 777         CLIENT *c;
 778
 779         assert( Client != NULL );
 780         assert( Req != NULL );
 781
 782         if (Req->argc > 2)
 783                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 784
 785         only_ops = false;
 786         have_arg = false;
 787
 788         if (Req->argc == 2) {
 789                 if (strcmp(Req->argv[1], "o") == 0)
 790                         only_ops = true;
 791 #ifdef STRICT_RFC
 792                 else return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 793 #endif
 794         }
 795
 796         IRC_SetPenalty(Client, 1);
 797         if (Req->argc >= 1) { /* Channel or Mask. */
 798                 chan = Channel_Search(Req->argv[0]);
 799                 if (chan)
 800                         return IRC_Send_WHO(Client, chan, only_ops);
 801                 if (strcmp(Req->argv[0], "0") != 0) { /* RFC stupidity, same as no arguments */
 802                         have_arg = true;
 803                         strlcpy(pattern, Req->argv[0], sizeof(pattern));
 804                         ngt_LowerStr(pattern);
 805                         IRC_SetPenalty(Client, 3);
 806                 }
 807         }
 808
 809         for (c = Client_First(); c != NULL; c = Client_Next(c)) {
 810                 if (Client_Type(c) != CLIENT_USER)
 811                         continue;
 812                  /*
 813                   * RFC 2812, 3.6.1:
 814                   * In the absence of the parameter, all visible (users who aren't
 815                   * invisible (user mode +i) and who don't have a common channel
 816                   * with the requesting client) are listed.
 817                   *
 818                   * The same result can be achieved by using a [sic] of "0"
 819                   * or any wildcard which will end up matching every visible user.
 820                   *
 821                   * The [sic] passed to WHO is matched against users' host, server, real name and
 822                   * nickname if the channel cannot be found.
 823                   */
 824                 client_modes = Client_Modes(c);
 825                 if (strchr(client_modes, 'i'))
 826                         continue;
 827
 828                 if (only_ops && !strchr(client_modes, 'o'))
 829                         continue;
 830
 831                 if (have_arg) { /* match pattern against user host/server/name/nick */
 832                         client_match = MatchCaseInsensitive(pattern, Client_Hostname(c)); /* user's host */
 833                         if (!client_match)
 834                                 client_match = MatchCaseInsensitive(pattern, Client_ID(Client_Introducer(c))); /* server */
 835                         if (!client_match)
 836                                 client_match = Match(Req->argv[0], Client_Info(c)); /* realname */
 837                         if (!client_match)
 838                                 client_match = MatchCaseInsensitive(pattern, Client_ID(c)); /* nick name */
 839
 840                         if (!client_match) /* This isn't the client you're looking for */
 841                                 continue;
 842                 }
 843
 844                 strcpy(flags, who_flags_status(client_modes));
 845
 846                 if (strchr(client_modes, 'o')) /* this client is an operator */
 847                         strlcat(flags, "*", sizeof(flags));
 848
 849                 /* Search suitable channel */
 850                 cl2chan = Channel_FirstChannelOf(c);
 851                 while (cl2chan) {
 852                         cn = Channel_GetChannel(cl2chan);
 853                         if (Channel_IsMemberOf(cn, Client) ||
 854                                     !strchr(Channel_Modes(cn), 's'))
 855                         {
 856                                 channelname = Channel_Name(cn);
 857                                 break;
 858                         }
 859                         cl2chan = Channel_NextChannelOf(c, cl2chan);
 860                 }
 861                 if (cl2chan) {
 862                         chan = Channel_GetChannel(cl2chan);
 863                         chan_user_modes = Channel_UserModes(chan, c);
 864                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 865                 } else
 866                         channelname = "*";
 867
 868                 if (!write_whoreply(Client, c, channelname, flags))
 869                         return DISCONNECTED;
 870         }
 871
 872         if (Req->argc > 0)
 873                 channelname = Req->argv[0];
 874         else
 875                 channelname = "*";
 876
 877         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), channelname);
 878 } /* IRC_WHO */
 879
 880
 881 GLOBAL bool
 882 IRC_WHOIS( CLIENT *Client, REQUEST *Req )
 883 {
 884         CLIENT *from, *target, *c;
 885         char str[LINE_LEN + 1];
 886         CL2CHAN *cl2chan;
 887         CHANNEL *chan;
 888
 889         assert( Client != NULL );
 890         assert( Req != NULL );
 891
 892         /* Bad number of parameters? */
 893         if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 894
 895         /* Search client */
 896         c = Client_Search( Req->argv[Req->argc - 1] );
 897         if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
 898
 899         /* Search sender of the WHOIS */
 900         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 901         else from = Client;
 902         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 903
 904         /* Forward to other server? */
 905         if( Req->argc > 1 )
 906         {
 907                 /* Search target server (can be specified as nick of that server!) */
 908                 target = Client_Search( Req->argv[0] );
 909                 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 910         }
 911         else target = Client_ThisServer( );
 912
 913         assert( target != NULL );
 914
 915         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] );
 916
 917         /* Nick, user and name */
 918         if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
 919
 920         /* Server */
 921         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;
 922
 923         /* Channels */
 924         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 925         cl2chan = Channel_FirstChannelOf( c );
 926         while( cl2chan )
 927         {
 928                 chan = Channel_GetChannel( cl2chan );
 929                 assert( chan != NULL );
 930
 931                 /* next */
 932                 cl2chan = Channel_NextChannelOf( c, cl2chan );
 933
 934                 /* Secret channel? */
 935                 if( strchr( Channel_Modes( chan ), 's' ) && ! Channel_IsMemberOf( chan, Client )) continue;
 936
 937                 /* Concatenate channel names */
 938                 if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
 939                 if( strchr( Channel_UserModes( chan, c ), 'o' )) strlcat( str, "@", sizeof( str ));
 940                 else if( strchr( Channel_UserModes( chan, c ), 'v' )) strlcat( str, "+", sizeof( str ));
 941                 strlcat( str, Channel_Name( chan ), sizeof( str ));
 942
 943                 if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
 944                 {
 945                         /* Line becomes too long: send it! */
 946                         if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 947                         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 948                 }
 949         }
 950         if( str[strlen( str ) - 1] != ':')
 951         {
 952                 /* There is data left to send: */
 953                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 954         }
 955
 956         /* IRC-Operator? */
 957         if( Client_HasMode( c, 'o' ))
 958         {
 959                 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
 960         }
 961
 962         /* Idle and signon time (local clients only!) */
 963         if (Client_Conn(c) > NONE ) {
 964                 if (! IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
 965                         Client_ID(from), Client_ID(c),
 966                         (unsigned long)Conn_GetIdle(Client_Conn(c)),
 967                         (unsigned long)Conn_GetSignon(Client_Conn(c))))
 968                                 return DISCONNECTED;
 969         }
 970
 971         /* Away? */
 972         if( Client_HasMode( c, 'a' ))
 973         {
 974                 if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED;
 975         }
 976
 977         /* End of Whois */
 978         return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
 979 } /* IRC_WHOIS */
 980
 981
 982 static bool
 983 WHOWAS_EntryWrite(CLIENT *prefix, WHOWAS *entry)
 984 {
 985         char t_str[60];
 986
 987         (void)strftime(t_str, sizeof(t_str), "%a %b %d %H:%M:%S %Y",
 988                                         localtime(&entry->time));
 989
 990         if (!IRC_WriteStrClient(prefix, RPL_WHOWASUSER_MSG, Client_ID(prefix),
 991                         entry->id, entry->user, entry->host, entry->info))
 992                                 return DISCONNECTED;
 993
 994         return IRC_WriteStrClient(prefix, RPL_WHOISSERVER_MSG, Client_ID(prefix),
 995                   entry->id, entry->server, t_str);
 996 }
 997
 998 /**
 999  * IRC "WHOWAS" function.
1000  * This function implements the IRC command "WHOWHAS". It handles local
1001  * requests and request that should be forwarded to other servers.
1002  */
1003 GLOBAL bool
1004 IRC_WHOWAS( CLIENT *Client, REQUEST *Req )
1005 {
1006         CLIENT *target, *prefix;
1007         WHOWAS *whowas;
1008         char tok_buf[COMMAND_LEN];
1009         int max, last, count, i, nc;
1010         const char *nick;
1011
1012         assert( Client != NULL );
1013         assert( Req != NULL );
1014
1015         /* Wrong number of parameters? */
1016         if (Req->argc > 3)
1017                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
1018                                         Client_ID(Client), Req->command);
1019         if (Req->argc < 1)
1020                 return IRC_WriteStrClient(Client, ERR_NONICKNAMEGIVEN_MSG, Client_ID(Client));
1021
1022         /* Search target */
1023         if (Req->argc == 3)
1024                 target = Client_Search(Req->argv[2]);
1025         else
1026                 target = Client_ThisServer();
1027
1028         /* Get prefix */
1029         if (Client_Type(Client) == CLIENT_SERVER)
1030                 prefix = Client_Search(Req->prefix);
1031         else
1032                 prefix = Client;
1033
1034         if (!prefix)
1035                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
1036                                                 Client_ID(Client), Req->prefix);
1037
1038         /* Forward to other server? */
1039         if (target != Client_ThisServer()) {
1040                 if (!target || (Client_Type(target) != CLIENT_SERVER))
1041                         return IRC_WriteStrClient(prefix, ERR_NOSUCHSERVER_MSG,
1042                                         Client_ID(prefix), Req->argv[2]);
1043
1044                 /* Forward */
1045                 IRC_WriteStrClientPrefix( target, prefix, "WHOWAS %s %s %s",
1046                                           Req->argv[0], Req->argv[1],
1047                                           Req->argv[2] );
1048                 return CONNECTED;
1049         }
1050
1051         whowas = Client_GetWhowas( );
1052         last = Client_GetLastWhowasIndex( );
1053         if (last < 0)
1054                 last = 0;
1055
1056         max = DEFAULT_WHOWAS;
1057         if (Req->argc > 1) {
1058                 max = atoi(Req->argv[1]);
1059                 if (max < 1)
1060                         max = MAX_WHOWAS;
1061         }
1062
1063         /*
1064          * Break up the nick argument into a list of nicks, if applicable
1065          * Can't modify Req->argv[0] because we need it for RPL_ENDOFWHOWAS_MSG.
1066          */
1067         strlcpy(tok_buf, Req->argv[0], sizeof(tok_buf));
1068         nick = strtok(tok_buf, ",");
1069
1070         for (i=last, count=0; nick != NULL ; nick = strtok(NULL, ",")) {
1071                 nc = 0;
1072                 do {
1073                         /* Used entry? */
1074                         if (whowas[i].time > 0 && strcasecmp(nick, whowas[i].id) == 0) {
1075                                 if (!WHOWAS_EntryWrite(prefix, &whowas[i]))
1076                                         return DISCONNECTED;
1077                                 nc++;
1078                                 count++;
1079                         }
1080                         /* previous entry */
1081                         i--;
1082
1083                         /* "underflow", wrap around */
1084                         if (i < 0)
1085                                 i = MAX_WHOWAS - 1;
1086
1087                         if (nc && count >= max)
1088                                 break;
1089                 } while (i != last);
1090
1091                 if (nc == 0 && !IRC_WriteStrClient(prefix, ERR_WASNOSUCHNICK_MSG,
1092                                                 Client_ID(prefix), nick))
1093                         return DISCONNECTED;
1094         }
1095         return IRC_WriteStrClient(prefix, RPL_ENDOFWHOWAS_MSG, Client_ID(prefix), Req->argv[0]);
1096 } /* IRC_WHOWAS */
1097
1098
1099 GLOBAL bool
1100 IRC_Send_LUSERS( CLIENT *Client )
1101 {
1102         unsigned long cnt;
1103 #ifndef STRICT_RFC
1104         unsigned long max;
1105 #endif
1106
1107         assert( Client != NULL );
1108
1109         /* Users, services and serevers in the network */
1110         if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
1111
1112         /* Number of IRC operators */
1113         cnt = Client_OperCount( );
1114         if( cnt > 0 )
1115         {
1116                 if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1117         }
1118
1119         /* Unknown connections */
1120         cnt = Client_UnknownCount( );
1121         if( cnt > 0 )
1122         {
1123                 if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1124         }
1125
1126         /* Number of created channels */
1127         if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
1128
1129         /* Number of local users, services and servers */
1130         if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
1131
1132 #ifndef STRICT_RFC
1133         /* Maximum number of local users */
1134         cnt = Client_MyUserCount();
1135         max = Client_MyMaxUserCount();
1136         if (! IRC_WriteStrClient(Client, RPL_LOCALUSERS_MSG, Client_ID(Client),
1137                         cnt, max, cnt, max))
1138                 return DISCONNECTED;
1139         /* Maximum number of users in the network */
1140         cnt = Client_UserCount();
1141         max = Client_MaxUserCount();
1142         if(! IRC_WriteStrClient(Client, RPL_NETUSERS_MSG, Client_ID(Client),
1143                         cnt, max, cnt, max))
1144                 return DISCONNECTED;
1145 #endif
1146
1147         return CONNECTED;
1148 } /* IRC_Send_LUSERS */
1149
1150
1151 static bool
1152 Show_MOTD_Start(CLIENT *Client)
1153 {
1154         return IRC_WriteStrClient(Client, RPL_MOTDSTART_MSG,
1155                 Client_ID( Client ), Client_ID( Client_ThisServer( )));
1156 }
1157
1158 static bool
1159 Show_MOTD_Sendline(CLIENT *Client, const char *msg)
1160 {
1161         return IRC_WriteStrClient(Client, RPL_MOTD_MSG, Client_ID( Client ), msg);
1162 }
1163
1164 static bool
1165 Show_MOTD_End(CLIENT *Client)
1166 {
1167         return IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ));
1168 }
1169
1170
1171 GLOBAL bool
1172 IRC_Show_MOTD( CLIENT *Client )
1173 {
1174         char line[127];
1175         FILE *fd;
1176
1177         assert( Client != NULL );
1178
1179         if (Conf_MotdPhrase[0]) {
1180                 if (!Show_MOTD_Start(Client))
1181                         return DISCONNECTED;
1182                 if (!Show_MOTD_Sendline(Client, Conf_MotdPhrase))
1183                         return DISCONNECTED;
1184
1185                 return Show_MOTD_End(Client);
1186         }
1187
1188         fd = fopen( Conf_MotdFile, "r" );
1189         if( ! fd ) {
1190                 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1191                 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1192         }
1193
1194         if (!Show_MOTD_Start( Client )) {
1195                 fclose(fd);
1196                 return false;
1197         }
1198
1199         while (fgets( line, (int)sizeof line, fd )) {
1200                 ngt_TrimLastChr( line, '\n');
1201
1202                 if( ! Show_MOTD_Sendline( Client, line)) {
1203                         fclose( fd );
1204                         return false;
1205                 }
1206         }
1207         fclose(fd);
1208         return Show_MOTD_End(Client);
1209 } /* IRC_Show_MOTD */
1210
1211
1212 GLOBAL bool
1213 IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan )
1214 {
1215         bool is_visible, is_member;
1216         char str[LINE_LEN + 1];
1217         CL2CHAN *cl2chan;
1218         CLIENT *cl;
1219
1220         assert( Client != NULL );
1221         assert( Chan != NULL );
1222
1223         if( Channel_IsMemberOf( Chan, Client )) is_member = true;
1224         else is_member = false;
1225
1226         /* Secret channel? */
1227         if( ! is_member && strchr( Channel_Modes( Chan ), 's' )) return CONNECTED;
1228
1229         /* Alle Mitglieder suchen */
1230         snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1231         cl2chan = Channel_FirstMember( Chan );
1232         while( cl2chan )
1233         {
1234                 cl = Channel_GetClient( cl2chan );
1235
1236                 if( strchr( Client_Modes( cl ), 'i' )) is_visible = false;
1237                 else is_visible = true;
1238
1239                 if( is_member || is_visible )
1240                 {
1241                         /* Nick anhaengen */
1242                         if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
1243                         if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strlcat( str, "@", sizeof( str ));
1244                         else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strlcat( str, "+", sizeof( str ));
1245                         strlcat( str, Client_ID( cl ), sizeof( str ));
1246
1247                         if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
1248                         {
1249                                 /* Zeile wird zu lang: senden! */
1250                                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1251                                 snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1252                         }
1253                 }
1254
1255                 /* naechstes Mitglied suchen */
1256                 cl2chan = Channel_NextMember( Chan, cl2chan );
1257         }
1258         if( str[strlen( str ) - 1] != ':')
1259         {
1260                 /* Es sind noch Daten da, die gesendet werden muessen */
1261                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1262         }
1263
1264         return CONNECTED;
1265 } /* IRC_Send_NAMES */
1266
1267
1268
1269 /**
1270  * Send the ISUPPORT numeric (005).
1271  * This numeric indicates the features that are supported by this server.
1272  * See <http://www.irc.org/tech_docs/005.html> for details.
1273  */
1274 GLOBAL bool
1275 IRC_Send_ISUPPORT PARAMS((CLIENT * Client))
1276 {
1277         if (!IRC_WriteStrClient(Client, RPL_ISUPPORT1_MSG, Client_ID(Client),
1278                                 Conf_MaxJoins))
1279                 return DISCONNECTED;
1280         return IRC_WriteStrClient(Client, RPL_ISUPPORT2_MSG, Client_ID(Client),
1281                                   CHANNEL_NAME_LEN - 1, Conf_MaxNickLength - 1,
1282                                   COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1,
1283                                   COMMAND_LEN - 113);
1284 } /* IRC_Send_ISUPPORT */
1285
1286
1287 /* -eof- */