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