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 CONNECTED;
 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
 770 static bool
 771 MatchCaseInsensitive(const char *pattern, const char *searchme)
 772 {
 773         char haystack[COMMAND_LEN];
 774
 775         strlcpy(haystack, searchme, sizeof(haystack));
 776
 777         ngt_LowerStr(haystack);
 778
 779         return Match(pattern, haystack);
 780 }
 781
 782
 783 GLOBAL bool
 784 IRC_WHO( CLIENT *Client, REQUEST *Req )
 785 {
 786         bool only_ops, have_arg, client_match;
 787         const char *channelname, *client_modes, *chan_user_modes;
 788         char pattern[COMMAND_LEN];
 789         char flags[4];
 790         CL2CHAN *cl2chan;
 791         CHANNEL *chan, *cn;
 792         CLIENT *c;
 793
 794         assert( Client != NULL );
 795         assert( Req != NULL );
 796
 797         if (Req->argc > 2)
 798                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 799
 800         only_ops = false;
 801         have_arg = false;
 802
 803         if (Req->argc == 2) {
 804                 if (strcmp(Req->argv[1], "o") == 0)
 805                         only_ops = true;
 806 #ifdef STRICT_RFC
 807                 else return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 808 #endif
 809         }
 810
 811         IRC_SetPenalty(Client, 1);
 812         if (Req->argc >= 1) { /* Channel or Mask. */
 813                 chan = Channel_Search(Req->argv[0]);
 814                 if (chan)
 815                         return IRC_Send_WHO(Client, chan, only_ops);
 816                 if (strcmp(Req->argv[0], "0") != 0) { /* RFC stupidity, same as no arguments */
 817                         have_arg = true;
 818                         strlcpy(pattern, Req->argv[0], sizeof(pattern));
 819                         ngt_LowerStr(pattern);
 820                         IRC_SetPenalty(Client, 3);
 821                 }
 822         }
 823
 824         for (c = Client_First(); c != NULL; c = Client_Next(c)) {
 825                 if (Client_Type(c) != CLIENT_USER)
 826                         continue;
 827                  /*
 828                   * RFC 2812, 3.6.1:
 829                   * In the absence of the parameter, all visible (users who aren't
 830                   * invisible (user mode +i) and who don't have a common channel
 831                   * with the requesting client) are listed.
 832                   *
 833                   * The same result can be achieved by using a [sic] of "0"
 834                   * or any wildcard which will end up matching every visible user.
 835                   *
 836                   * The [sic] passed to WHO is matched against users' host, server, real name and
 837                   * nickname if the channel cannot be found.
 838                   */
 839                 client_modes = Client_Modes(c);
 840                 if (strchr(client_modes, 'i'))
 841                         continue;
 842
 843                 if (only_ops && !strchr(client_modes, 'o'))
 844                         continue;
 845
 846                 if (have_arg) { /* match pattern against user host/server/name/nick */
 847                         client_match = MatchCaseInsensitive(pattern, Client_Hostname(c)); /* user's host */
 848                         if (!client_match)
 849                                 client_match = MatchCaseInsensitive(pattern, Client_ID(Client_Introducer(c))); /* server */
 850                         if (!client_match)
 851                                 client_match = Match(Req->argv[0], Client_Info(c)); /* realname */
 852                         if (!client_match)
 853                                 client_match = MatchCaseInsensitive(pattern, Client_ID(c)); /* nick name */
 854
 855                         if (!client_match) /* This isn't the client you're looking for */
 856                                 continue;
 857                 }
 858
 859                 strcpy(flags, who_flags_status(client_modes));
 860
 861                 if (strchr(client_modes, 'o')) /* this client is an operator */
 862                         strlcat(flags, "*", sizeof(flags));
 863
 864                 /* Search suitable channel */
 865                 cl2chan = Channel_FirstChannelOf(c);
 866                 while (cl2chan) {
 867                         cn = Channel_GetChannel(cl2chan);
 868                         if (Channel_IsMemberOf(cn, Client) ||
 869                                     !strchr(Channel_Modes(cn), 's'))
 870                         {
 871                                 channelname = Channel_Name(cn);
 872                                 break;
 873                         }
 874                         cl2chan = Channel_NextChannelOf(c, cl2chan);
 875                 }
 876                 if (cl2chan) {
 877                         chan = Channel_GetChannel(cl2chan);
 878                         chan_user_modes = Channel_UserModes(chan, c);
 879                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 880                 } else
 881                         channelname = "*";
 882
 883                 if (!write_whoreply(Client, c, channelname, flags))
 884                         return DISCONNECTED;
 885         }
 886
 887         if (Req->argc > 0)
 888                 channelname = Req->argv[0];
 889         else
 890                 channelname = "*";
 891
 892         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), channelname);
 893 } /* IRC_WHO */
 894
 895
 896 GLOBAL bool
 897 IRC_WHOIS( CLIENT *Client, REQUEST *Req )
 898 {
 899         CLIENT *from, *target, *c;
 900         char str[LINE_LEN + 1];
 901         CL2CHAN *cl2chan;
 902         CHANNEL *chan;
 903
 904         assert( Client != NULL );
 905         assert( Req != NULL );
 906
 907         /* Bad number of parameters? */
 908         if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 909
 910         /* Search client */
 911         c = Client_Search( Req->argv[Req->argc - 1] );
 912         if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
 913
 914         /* Search sender of the WHOIS */
 915         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 916         else from = Client;
 917         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 918
 919         /* Forward to other server? */
 920         if( Req->argc > 1 )
 921         {
 922                 /* Search target server (can be specified as nick of that server!) */
 923                 target = Client_Search( Req->argv[0] );
 924                 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 925         }
 926         else target = Client_ThisServer( );
 927
 928         assert( target != NULL );
 929
 930         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] );
 931
 932         /* Nick, user and name */
 933         if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
 934
 935         /* Server */
 936         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;
 937
 938         /* Channels */
 939         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 940         cl2chan = Channel_FirstChannelOf( c );
 941         while( cl2chan )
 942         {
 943                 chan = Channel_GetChannel( cl2chan );
 944                 assert( chan != NULL );
 945
 946                 /* next */
 947                 cl2chan = Channel_NextChannelOf( c, cl2chan );
 948
 949                 /* Secret channel? */
 950                 if( strchr( Channel_Modes( chan ), 's' ) && ! Channel_IsMemberOf( chan, Client )) continue;
 951
 952                 /* Concatenate channel names */
 953                 if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
 954                 if( strchr( Channel_UserModes( chan, c ), 'o' )) strlcat( str, "@", sizeof( str ));
 955                 else if( strchr( Channel_UserModes( chan, c ), 'v' )) strlcat( str, "+", sizeof( str ));
 956                 strlcat( str, Channel_Name( chan ), sizeof( str ));
 957
 958                 if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
 959                 {
 960                         /* Line becomes too long: send it! */
 961                         if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 962                         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 963                 }
 964         }
 965         if( str[strlen( str ) - 1] != ':')
 966         {
 967                 /* There is data left to send: */
 968                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 969         }
 970
 971         /* IRC-Operator? */
 972         if( Client_HasMode( c, 'o' ))
 973         {
 974                 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
 975         }
 976
 977         /* Idle and signon time (local clients only!) */
 978         if (Client_Conn(c) > NONE ) {
 979                 if (! IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
 980                         Client_ID(from), Client_ID(c),
 981                         (unsigned long)Conn_GetIdle(Client_Conn(c)),
 982                         (unsigned long)Conn_GetSignon(Client_Conn(c))))
 983                                 return DISCONNECTED;
 984         }
 985
 986         /* Away? */
 987         if( Client_HasMode( c, 'a' ))
 988         {
 989                 if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED;
 990         }
 991
 992         /* End of Whois */
 993         return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
 994 } /* IRC_WHOIS */
 995
 996
 997 /**
 998  * IRC "WHOWAS" function.
 999  * This function implements the IRC command "WHOWHAS". It handles local
1000  * requests and request that should be forwarded to other servers.
1001  */
1002 GLOBAL bool
1003 IRC_WHOWAS( CLIENT *Client, REQUEST *Req )
1004 {
1005         CLIENT *target, *prefix;
1006         WHOWAS *whowas;
1007         int max, last, count, i;
1008         char t_str[60];
1009
1010         assert( Client != NULL );
1011         assert( Req != NULL );
1012
1013         /* Wrong number of parameters? */
1014         if(( Req->argc < 1 ) || ( Req->argc > 3 ))
1015                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG,
1016                                            Client_ID( Client ), Req->command );
1017
1018         /* Search taget */
1019         if( Req->argc == 3 )
1020                 target = Client_Search( Req->argv[2] );
1021         else
1022                 target = Client_ThisServer( );
1023
1024         /* Get prefix */
1025         if( Client_Type( Client ) == CLIENT_SERVER )
1026                 prefix = Client_Search( Req->prefix );
1027         else
1028                 prefix = Client;
1029
1030         if( ! prefix )
1031                 return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG,
1032                                            Client_ID( Client ), Req->prefix );
1033
1034         /* Forward to other server? */
1035         if( target != Client_ThisServer( ))
1036         {
1037                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
1038                         return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG,
1039                                                    Client_ID( prefix ),
1040                                                    Req->argv[2] );
1041
1042                 /* Forward */
1043                 IRC_WriteStrClientPrefix( target, prefix, "WHOWAS %s %s %s",
1044                                           Req->argv[0], Req->argv[1],
1045                                           Req->argv[2] );
1046                 return CONNECTED;
1047         }
1048
1049         whowas = Client_GetWhowas( );
1050         last = Client_GetLastWhowasIndex( );
1051         if( last < 0 ) last = 0;
1052
1053         if( Req->argc > 1 )
1054         {
1055                 max = atoi( Req->argv[1] );
1056                 if( max < 1 ) max = MAX_WHOWAS;
1057         }
1058         else
1059                 max = DEFAULT_WHOWAS;
1060
1061         i = last;
1062         count = 0;
1063         do
1064         {
1065                 /* Used entry? */
1066                 if( whowas[i].time > 0 &&
1067                     strcasecmp( Req->argv[0], whowas[i].id ) == 0 )
1068                 {
1069                         (void)strftime( t_str, sizeof(t_str),
1070                                         "%a %b %d %H:%M:%S %Y",
1071                                         localtime( &whowas[i].time ));
1072
1073                         if( ! IRC_WriteStrClient( prefix, RPL_WHOWASUSER_MSG,
1074                                                   Client_ID( prefix ),
1075                                                   whowas[i].id,
1076                                                   whowas[i].user,
1077                                                   whowas[i].host,
1078                                                   whowas[i].info ))
1079                                 return DISCONNECTED;
1080
1081                         if( ! IRC_WriteStrClient( prefix, RPL_WHOISSERVER_MSG,
1082                                                   Client_ID( prefix ),
1083                                                   whowas[i].id,
1084                                                   whowas[i].server, t_str ))
1085                                 return DISCONNECTED;
1086
1087                         count++;
1088                         if( count >= max ) break;
1089                 }
1090
1091                 /* previos entry */
1092                 i--;
1093
1094                 /* "underflow", wrap around */
1095                 if( i < 0 ) i = MAX_WHOWAS - 1;
1096         } while( i != last );
1097
1098         return IRC_WriteStrClient( prefix, RPL_ENDOFWHOWAS_MSG,
1099                                    Client_ID( prefix ), Req->argv[0] );
1100 } /* IRC_WHOWAS */
1101
1102
1103 GLOBAL bool
1104 IRC_Send_LUSERS( CLIENT *Client )
1105 {
1106         unsigned long cnt;
1107 #ifndef STRICT_RFC
1108         unsigned long max;
1109 #endif
1110
1111         assert( Client != NULL );
1112
1113         /* Users, services and serevers in the network */
1114         if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
1115
1116         /* Number of IRC operators */
1117         cnt = Client_OperCount( );
1118         if( cnt > 0 )
1119         {
1120                 if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1121         }
1122
1123         /* Unknown connections */
1124         cnt = Client_UnknownCount( );
1125         if( cnt > 0 )
1126         {
1127                 if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1128         }
1129
1130         /* Number of created channels */
1131         if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
1132
1133         /* Number of local users, services and servers */
1134         if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
1135
1136 #ifndef STRICT_RFC
1137         /* Maximum number of local users */
1138         cnt = Client_MyUserCount();
1139         max = Client_MyMaxUserCount();
1140         if (! IRC_WriteStrClient(Client, RPL_LOCALUSERS_MSG, Client_ID(Client),
1141                         cnt, max, cnt, max))
1142                 return DISCONNECTED;
1143         /* Maximum number of users in the network */
1144         cnt = Client_UserCount();
1145         max = Client_MaxUserCount();
1146         if(! IRC_WriteStrClient(Client, RPL_NETUSERS_MSG, Client_ID(Client),
1147                         cnt, max, cnt, max))
1148                 return DISCONNECTED;
1149 #endif
1150
1151         return CONNECTED;
1152 } /* IRC_Send_LUSERS */
1153
1154
1155 static bool
1156 Show_MOTD_Start(CLIENT *Client)
1157 {
1158         return IRC_WriteStrClient(Client, RPL_MOTDSTART_MSG,
1159                 Client_ID( Client ), Client_ID( Client_ThisServer( )));
1160 }
1161
1162 static bool
1163 Show_MOTD_Sendline(CLIENT *Client, const char *msg)
1164 {
1165         return IRC_WriteStrClient(Client, RPL_MOTD_MSG, Client_ID( Client ), msg);
1166 }
1167
1168 static bool
1169 Show_MOTD_End(CLIENT *Client)
1170 {
1171         return IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ));
1172 }
1173
1174
1175 GLOBAL bool
1176 IRC_Show_MOTD( CLIENT *Client )
1177 {
1178         char line[127];
1179         FILE *fd;
1180
1181         assert( Client != NULL );
1182
1183         if (Conf_MotdPhrase[0]) {
1184                 if (!Show_MOTD_Start(Client))
1185                         return DISCONNECTED;
1186                 if (!Show_MOTD_Sendline(Client, Conf_MotdPhrase))
1187                         return DISCONNECTED;
1188
1189                 return Show_MOTD_End(Client);
1190         }
1191
1192         fd = fopen( Conf_MotdFile, "r" );
1193         if( ! fd ) {
1194                 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1195                 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1196         }
1197
1198         if (!Show_MOTD_Start( Client )) {
1199                 fclose(fd);
1200                 return false;
1201         }
1202
1203         while (fgets( line, (int)sizeof line, fd )) {
1204                 ngt_TrimLastChr( line, '\n');
1205
1206                 if( ! Show_MOTD_Sendline( Client, line)) {
1207                         fclose( fd );
1208                         return false;
1209                 }
1210         }
1211         fclose(fd);
1212         return Show_MOTD_End(Client);
1213 } /* IRC_Show_MOTD */
1214
1215
1216 GLOBAL bool
1217 IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan )
1218 {
1219         bool is_visible, is_member;
1220         char str[LINE_LEN + 1];
1221         CL2CHAN *cl2chan;
1222         CLIENT *cl;
1223
1224         assert( Client != NULL );
1225         assert( Chan != NULL );
1226
1227         if( Channel_IsMemberOf( Chan, Client )) is_member = true;
1228         else is_member = false;
1229
1230         /* Secret channel? */
1231         if( ! is_member && strchr( Channel_Modes( Chan ), 's' )) return CONNECTED;
1232
1233         /* Alle Mitglieder suchen */
1234         snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1235         cl2chan = Channel_FirstMember( Chan );
1236         while( cl2chan )
1237         {
1238                 cl = Channel_GetClient( cl2chan );
1239
1240                 if( strchr( Client_Modes( cl ), 'i' )) is_visible = false;
1241                 else is_visible = true;
1242
1243                 if( is_member || is_visible )
1244                 {
1245                         /* Nick anhaengen */
1246                         if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
1247                         if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strlcat( str, "@", sizeof( str ));
1248                         else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strlcat( str, "+", sizeof( str ));
1249                         strlcat( str, Client_ID( cl ), sizeof( str ));
1250
1251                         if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
1252                         {
1253                                 /* Zeile wird zu lang: senden! */
1254                                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1255                                 snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1256                         }
1257                 }
1258
1259                 /* naechstes Mitglied suchen */
1260                 cl2chan = Channel_NextMember( Chan, cl2chan );
1261         }
1262         if( str[strlen( str ) - 1] != ':')
1263         {
1264                 /* Es sind noch Daten da, die gesendet werden muessen */
1265                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1266         }
1267
1268         return CONNECTED;
1269 } /* IRC_Send_NAMES */
1270
1271
1272
1273 /**
1274  * Send the ISUPPORT numeric (005).
1275  * This numeric indicates the features that are supported by this server.
1276  * See <http://www.irc.org/tech_docs/005.html> for details.
1277  */
1278 GLOBAL bool
1279 IRC_Send_ISUPPORT PARAMS((CLIENT * Client))
1280 {
1281         if (!IRC_WriteStrClient(Client, RPL_ISUPPORT1_MSG, Client_ID(Client),
1282                                 Conf_MaxJoins))
1283                 return DISCONNECTED;
1284         return IRC_WriteStrClient(Client, RPL_ISUPPORT2_MSG, Client_ID(Client),
1285                                   CHANNEL_NAME_LEN - 1, Conf_MaxNickLength - 1,
1286                                   COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1,
1287                                   COMMAND_LEN - 113);
1288 } /* IRC_Send_ISUPPORT */
1289
1290
1291 /* -eof- */