src/ngircd/irc-info.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001-2005 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 static char UNUSED id[] = "$Id: irc-info.c,v 1.44 2008/02/17 13:26:42 alex Exp $";
  18
  19 #include "imp.h"
  20 #include <assert.h>
  21 #include <errno.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <strings.h>
  26
  27 #include "ngircd.h"
  28 #include "cvs-version.h"
  29 #include "conn-func.h"
  30 #include "conn-zip.h"
  31 #include "client.h"
  32 #include "channel.h"
  33 #include "resolve.h"
  34 #include "conf.h"
  35 #include "defines.h"
  36 #include "log.h"
  37 #include "messages.h"
  38 #include "match.h"
  39 #include "tool.h"
  40 #include "parse.h"
  41 #include "irc-write.h"
  42
  43 #include "exp.h"
  44 #include "irc-info.h"
  45
  46
  47 GLOBAL bool
  48 IRC_ADMIN(CLIENT *Client, REQUEST *Req )
  49 {
  50         CLIENT *target, *prefix;
  51
  52         assert( Client != NULL );
  53         assert( Req != NULL );
  54
  55         /* Falsche Anzahl Parameter? */
  56         if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  57
  58         /* Ziel suchen */
  59         if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
  60         else target = Client_ThisServer( );
  61
  62         /* Prefix ermitteln */
  63         if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
  64         else prefix = Client;
  65         if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
  66
  67         /* An anderen Server weiterleiten? */
  68         if( target != Client_ThisServer( ))
  69         {
  70                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
  71
  72                 /* forwarden */
  73                 IRC_WriteStrClientPrefix( target, prefix, "ADMIN %s", Req->argv[0] );
  74                 return CONNECTED;
  75         }
  76
  77         /* mit Versionsinfo antworten */
  78         if( ! IRC_WriteStrClient( Client, RPL_ADMINME_MSG, Client_ID( prefix ), Conf_ServerName )) return DISCONNECTED;
  79         if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC1_MSG, Client_ID( prefix ), Conf_ServerAdmin1 )) return DISCONNECTED;
  80         if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC2_MSG, Client_ID( prefix ), Conf_ServerAdmin2 )) return DISCONNECTED;
  81         if( ! IRC_WriteStrClient( Client, RPL_ADMINEMAIL_MSG, Client_ID( prefix ), Conf_ServerAdminMail )) return DISCONNECTED;
  82
  83         IRC_SetPenalty( Client, 1 );
  84         return CONNECTED;
  85 } /* IRC_ADMIN */
  86
  87
  88 /**
  89  * Handler for the IRC command "INFO".
  90  * See RFC 2812 section 3.4.10.
  91  */
  92 GLOBAL bool
  93 IRC_INFO(CLIENT * Client, REQUEST * Req)
  94 {
  95         CLIENT *target, *prefix;
  96         char msg[510];
  97
  98         assert(Client != NULL);
  99         assert(Req != NULL);
 100
 101         /* Wrong number of parameters? */
 102         if (Req->argc > 1)
 103                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 104                                           Client_ID(Client), Req->command);
 105
 106         /* Determine prefix */
 107         if (Client_Type(Client) == CLIENT_SERVER)
 108                 prefix = Client_Search(Req->prefix);
 109         else
 110                 prefix = Client;
 111         if (!prefix)
 112                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
 113                                           Client_ID(Client), Req->prefix);
 114
 115         /* Look for a target */
 116         if (Req->argc > 0)
 117                 target = Client_Search(Req->argv[0]);
 118         else
 119                 target = Client_ThisServer();
 120
 121         /* Make sure that the target is a server */
 122         if (target && Client_Type(target) != CLIENT_SERVER)
 123                 target = Client_Introducer(target);
 124
 125         if (!target)
 126                 return IRC_WriteStrClient(prefix, ERR_NOSUCHSERVER_MSG,
 127                                           Client_ID(prefix), Req->argv[0]);
 128
 129         /* Pass on to another server? */
 130         if (target != Client_ThisServer()) {
 131                 IRC_WriteStrClientPrefix(target, prefix, "INFO %s",
 132                                          Req->argv[0]);
 133                 return CONNECTED;
 134         }
 135
 136         if (!IRC_WriteStrClient(Client, RPL_INFO_MSG, Client_ID(prefix),
 137                                 NGIRCd_Version))
 138                 return DISCONNECTED;
 139
 140         strlcpy(msg, "Server has been started ", sizeof(msg));
 141         strlcat(msg, NGIRCd_StartStr, sizeof(msg));
 142         if (!IRC_WriteStrClient(Client, RPL_INFO_MSG, Client_ID(prefix), msg))
 143                 return DISCONNECTED;
 144
 145         if (!IRC_WriteStrClient(Client, RPL_ENDOFINFO_MSG, Client_ID(prefix)))
 146                 return DISCONNECTED;
 147
 148         IRC_SetPenalty(Client, 2);
 149         return CONNECTED;
 150 } /* IRC_INFO */
 151
 152
 153 GLOBAL bool
 154 IRC_ISON( CLIENT *Client, REQUEST *Req )
 155 {
 156         char rpl[COMMAND_LEN];
 157         CLIENT *c;
 158         char *ptr;
 159         int i;
 160
 161         assert( Client != NULL );
 162         assert( Req != NULL );
 163
 164         /* Falsche Anzahl Parameter? */
 165         if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 166
 167         strlcpy( rpl, RPL_ISON_MSG, sizeof rpl );
 168         for( i = 0; i < Req->argc; i++ )
 169         {
 170                 ptr = strtok( Req->argv[i], " " );
 171                 while( ptr )
 172                 {
 173                         ngt_TrimStr( ptr );
 174                         c = Client_Search( ptr );
 175                         if( c && ( Client_Type( c ) == CLIENT_USER ))
 176                         {
 177                                 /* Dieser Nick ist "online" */
 178                                 strlcat( rpl, ptr, sizeof( rpl ));
 179                                 strlcat( rpl, " ", sizeof( rpl ));
 180                         }
 181                         ptr = strtok( NULL, " " );
 182                 }
 183         }
 184         ngt_TrimLastChr(rpl, ' ');
 185
 186         return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
 187 } /* IRC_ISON */
 188
 189
 190 GLOBAL bool
 191 IRC_LINKS( CLIENT *Client, REQUEST *Req )
 192 {
 193         CLIENT *target, *from, *c;
 194         char *mask;
 195
 196         assert( Client != NULL );
 197         assert( Req != NULL );
 198
 199         /* Falsche Anzahl Parameter? */
 200         if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 201
 202         /* Server-Mask ermitteln */
 203         if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1];
 204         else mask = "*";
 205
 206         /* Absender ermitteln */
 207         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 208         else from = Client;
 209         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 210
 211         /* An anderen Server forwarden? */
 212         if( Req->argc == 2 )
 213         {
 214                 target = Client_Search( Req->argv[0] );
 215                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 216                 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] );
 217         }
 218
 219         /* Wer ist der Absender? */
 220         if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
 221         else target = Client;
 222         if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 223
 224         c = Client_First( );
 225         while( c )
 226         {
 227                 if( Client_Type( c ) == CLIENT_SERVER )
 228                 {
 229                         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;
 230                 }
 231                 c = Client_Next( c );
 232         }
 233
 234         IRC_SetPenalty( target, 1 );
 235         return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask );
 236 } /* IRC_LINKS */
 237
 238
 239 GLOBAL bool
 240 IRC_LUSERS( CLIENT *Client, REQUEST *Req )
 241 {
 242         CLIENT *target, *from;
 243
 244         assert( Client != NULL );
 245         assert( Req != NULL );
 246
 247         /* Falsche Anzahl Parameter? */
 248         if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 249
 250         /* Absender ermitteln */
 251         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 252         else from = Client;
 253         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 254
 255         /* An anderen Server forwarden? */
 256         if( Req->argc == 2 )
 257         {
 258                 target = Client_Search( Req->argv[1] );
 259                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 260                 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] );
 261         }
 262
 263         /* Wer ist der Absender? */
 264         if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
 265         else target = Client;
 266         if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 267
 268         IRC_Send_LUSERS( target );
 269
 270         IRC_SetPenalty( target, 1 );
 271         return CONNECTED;
 272 } /* IRC_LUSERS */
 273
 274
 275 GLOBAL bool
 276 IRC_MOTD( CLIENT *Client, REQUEST *Req )
 277 {
 278         CLIENT *from, *target;
 279
 280         assert( Client != NULL );
 281         assert( Req != NULL );
 282
 283         /* Falsche Anzahl Parameter? */
 284         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 285
 286         /* From aus Prefix ermitteln */
 287         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 288         else from = Client;
 289         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 290
 291         if( Req->argc == 1 )
 292         {
 293                 /* an anderen Server forwarden */
 294                 target = Client_Search( Req->argv[0] );
 295                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 296
 297                 if( target != Client_ThisServer( ))
 298                 {
 299                         /* Ok, anderer Server ist das Ziel: forwarden */
 300                         return IRC_WriteStrClientPrefix( target, from, "MOTD %s", Req->argv[0] );
 301                 }
 302         }
 303
 304         IRC_SetPenalty( from, 3 );
 305         return IRC_Show_MOTD( from );
 306 } /* IRC_MOTD */
 307
 308
 309 GLOBAL bool
 310 IRC_NAMES( CLIENT *Client, REQUEST *Req )
 311 {
 312         char rpl[COMMAND_LEN], *ptr;
 313         CLIENT *target, *from, *c;
 314         CHANNEL *chan;
 315
 316         assert( Client != NULL );
 317         assert( Req != NULL );
 318
 319         /* Falsche Anzahl Parameter? */
 320         if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 321
 322         /* From aus Prefix ermitteln */
 323         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 324         else from = Client;
 325         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 326
 327         if( Req->argc == 2 )
 328         {
 329                 /* an anderen Server forwarden */
 330                 target = Client_Search( Req->argv[1] );
 331                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 332
 333                 if( target != Client_ThisServer( ))
 334                 {
 335                         /* Ok, anderer Server ist das Ziel: forwarden */
 336                         return IRC_WriteStrClientPrefix( target, from, "NAMES %s :%s", Req->argv[0], Req->argv[1] );
 337                 }
 338         }
 339
 340         if( Req->argc > 0 )
 341         {
 342                 /* bestimmte Channels durchgehen */
 343                 ptr = strtok( Req->argv[0], "," );
 344                 while( ptr )
 345                 {
 346                         chan = Channel_Search( ptr );
 347                         if( chan )
 348                         {
 349                                 /* Namen ausgeben */
 350                                 if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
 351                         }
 352                         if( ! IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), ptr )) return DISCONNECTED;
 353
 354                         /* naechsten Namen ermitteln */
 355                         ptr = strtok( NULL, "," );
 356                 }
 357                 return CONNECTED;
 358         }
 359
 360         /* alle Channels durchgehen */
 361         chan = Channel_First( );
 362         while( chan )
 363         {
 364                 /* Namen ausgeben */
 365                 if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
 366
 367                 /* naechster Channel */
 368                 chan = Channel_Next( chan );
 369         }
 370
 371         /* Nun noch alle Clients ausgeben, die in keinem Channel sind */
 372         c = Client_First( );
 373         snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
 374         while( c )
 375         {
 376                 if(( Client_Type( c ) == CLIENT_USER ) && ( Channel_FirstChannelOf( c ) == NULL ) && ( ! strchr( Client_Modes( c ), 'i' )))
 377                 {
 378                         /* Okay, das ist ein User: anhaengen */
 379                         if( rpl[strlen( rpl ) - 1] != ':' ) strlcat( rpl, " ", sizeof( rpl ));
 380                         strlcat( rpl, Client_ID( c ), sizeof( rpl ));
 381
 382                         if( strlen( rpl ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
 383                         {
 384                                 /* Zeile wird zu lang: senden! */
 385                                 if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
 386                                 snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
 387                         }
 388                 }
 389
 390                 /* naechster Client */
 391                 c = Client_Next( c );
 392         }
 393         if( rpl[strlen( rpl ) - 1] != ':')
 394         {
 395                 /* es wurden User gefunden */
 396                 if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
 397         }
 398
 399         IRC_SetPenalty( from, 1 );
 400         return IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), "*" );
 401 } /* IRC_NAMES */
 402
 403
 404 static unsigned int
 405 t_diff(time_t *t, const time_t div)
 406 {
 407         time_t diff, remain;
 408
 409         diff = *t / div;
 410
 411         remain = diff * div;
 412         *t -= remain;
 413
 414         return diff;
 415 }
 416
 417
 418 static unsigned int
 419 uptime_days(time_t *now)
 420 {
 421         return t_diff(now, 60 * 60 * 24);
 422 }
 423
 424
 425 static unsigned int
 426 uptime_hrs(time_t *now)
 427 {
 428         return t_diff(now, 60 * 60);
 429 }
 430
 431
 432 static unsigned int
 433 uptime_mins(time_t *now)
 434 {
 435          return t_diff(now, 60);
 436 }
 437
 438
 439 GLOBAL bool
 440 IRC_STATS( CLIENT *Client, REQUEST *Req )
 441 {
 442         CLIENT *from, *target, *cl;
 443         CONN_ID con;
 444         char query;
 445         COMMAND *cmd;
 446         time_t time_now;
 447         unsigned int days, hrs, mins;
 448
 449         assert( Client != NULL );
 450         assert( Req != NULL );
 451
 452         /* Falsche Anzahl Parameter? */
 453         if (Req->argc > 2)
 454                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 455
 456         /* From aus Prefix ermitteln */
 457         if (Client_Type(Client) == CLIENT_SERVER)
 458                 from = Client_Search(Req->prefix);
 459         else
 460                 from = Client;
 461
 462         if (! from)
 463                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix);
 464
 465         if (Req->argc == 2) {
 466                 /* an anderen Server forwarden */
 467                 target = Client_Search( Req->argv[1] );
 468                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
 469                         return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 470
 471                 if( target != Client_ThisServer()) {
 472                         /* Ok, anderer Server ist das Ziel: forwarden */
 473                         return IRC_WriteStrClientPrefix( target, from, "STATS %s %s", Req->argv[0], Req->argv[1] );
 474                 }
 475         }
 476
 477         if (Req->argc > 0)
 478                 query = Req->argv[0][0] ? Req->argv[0][0] : '*';
 479         else
 480                 query = '*';
 481
 482         switch (query) {
 483                 case 'l':       /* Links */
 484                 case 'L':
 485                         time_now = time(NULL);
 486                         for (con = Conn_First(); con != NONE ;con = Conn_Next(con)) {
 487                                 cl = Conn_GetClient(con);
 488                                 if (!cl)
 489                                         continue;
 490                                 if ((Client_Type(cl) == CLIENT_SERVER) || (cl == Client)) {
 491                                         /* Server link or our own connection */
 492 #ifdef ZLIB
 493                                         if (Conn_Options(con) & CONN_ZIP) {
 494                                                 if (!IRC_WriteStrClient(from, RPL_STATSLINKINFOZIP_MSG,
 495                                                         Client_ID(from), Client_Mask(cl), Conn_SendQ(con),
 496                                                         Conn_SendMsg(con), Zip_SendBytes(con), Conn_SendBytes(con),
 497                                                         Conn_RecvMsg(con), Zip_RecvBytes(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 498                                                                 return DISCONNECTED;
 499                                                 continue;
 500                                         }
 501 #endif
 502                                         if (!IRC_WriteStrClient(from, RPL_STATSLINKINFO_MSG, Client_ID(from),
 503                                                 Client_Mask(cl), Conn_SendQ(con), Conn_SendMsg(con), Conn_SendBytes(con),
 504                                                 Conn_RecvMsg(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 505                                                         return DISCONNECTED;
 506                                 }
 507                         }
 508                         break;
 509                 case 'm':       /* IRC-Commands */
 510                 case 'M':
 511                         cmd = Parse_GetCommandStruct( );
 512                         for (; cmd->name ; cmd++) {
 513                                 if (cmd->lcount == 0 && cmd->rcount == 0)
 514                                         continue;
 515                                 if (!IRC_WriteStrClient(from, RPL_STATSCOMMANDS_MSG, Client_ID(from),
 516                                                 cmd->name, cmd->lcount, cmd->bytes, cmd->rcount))
 517                                                         return DISCONNECTED;
 518                         }
 519                         break;
 520                 case 'u':       /* server uptime */
 521                 case 'U':
 522                         time_now = time(NULL) - NGIRCd_Start;
 523                         days = uptime_days(&time_now);
 524                         hrs = uptime_hrs(&time_now);
 525                         mins = uptime_mins(&time_now);
 526                         if (!IRC_WriteStrClient(from, RPL_STATSUPTIME, Client_ID(from),
 527                                         days, hrs, mins, (unsigned int) time_now))
 528                                                 return DISCONNECTED;
 529                         break;
 530         }
 531
 532         IRC_SetPenalty(from, 2);
 533         return IRC_WriteStrClient(from, RPL_ENDOFSTATS_MSG, Client_ID(from), query);
 534 } /* IRC_STATS */
 535
 536
 537 /**
 538  * Handler for the IRC command "SUMMON".
 539  * See RFC 2812 section 4.5. ngIRCd doesn't implement this functionality and
 540  * therefore answers with ERR_SUMMONDISABLED.
 541  */
 542 GLOBAL bool
 543 IRC_SUMMON(CLIENT * Client, REQUEST * Req)
 544 {
 545         return IRC_WriteStrClient(Client, ERR_SUMMONDISABLED_MSG,
 546                                   Client_ID(Client), Req->command);
 547 } /* IRC_SUMMON */
 548
 549
 550 GLOBAL bool
 551 IRC_TIME( CLIENT *Client, REQUEST *Req )
 552 {
 553         CLIENT *from, *target;
 554         char t_str[64];
 555         time_t t;
 556
 557         assert( Client != NULL );
 558         assert( Req != NULL );
 559
 560         /* Falsche Anzahl Parameter? */
 561         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 562
 563         /* From aus Prefix ermitteln */
 564         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 565         else from = Client;
 566         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 567
 568         if( Req->argc == 1 )
 569         {
 570                 /* an anderen Server forwarden */
 571                 target = Client_Search( Req->argv[0] );
 572                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
 573
 574                 if( target != Client_ThisServer( ))
 575                 {
 576                         /* Ok, anderer Server ist das Ziel: forwarden */
 577                         return IRC_WriteStrClientPrefix( target, from, "TIME %s", Req->argv[0] );
 578                 }
 579         }
 580
 581         t = time( NULL );
 582         (void)strftime( t_str, 60, "%A %B %d %Y -- %H:%M %Z", localtime( &t ));
 583         return IRC_WriteStrClient( from, RPL_TIME_MSG, Client_ID( from ), Client_ID( Client_ThisServer( )), t_str );
 584 } /* IRC_TIME */
 585
 586
 587 GLOBAL bool
 588 IRC_USERHOST( CLIENT *Client, REQUEST *Req )
 589 {
 590         char rpl[COMMAND_LEN];
 591         CLIENT *c;
 592         int max, i;
 593
 594         assert( Client != NULL );
 595         assert( Req != NULL );
 596
 597         /* Falsche Anzahl Parameter? */
 598         if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 599
 600         if( Req->argc > 5 ) max = 5;
 601         else max = Req->argc;
 602
 603         strlcpy( rpl, RPL_USERHOST_MSG, sizeof rpl );
 604         for( i = 0; i < max; i++ )
 605         {
 606                 c = Client_Search( Req->argv[i] );
 607                 if( c && ( Client_Type( c ) == CLIENT_USER ))
 608                 {
 609                         /* Dieser Nick ist "online" */
 610                         strlcat( rpl, Client_ID( c ), sizeof( rpl ));
 611                         if( Client_HasMode( c, 'o' )) strlcat( rpl, "*", sizeof( rpl ));
 612                         strlcat( rpl, "=", sizeof( rpl ));
 613                         if( Client_HasMode( c, 'a' )) strlcat( rpl, "-", sizeof( rpl ));
 614                         else strlcat( rpl, "+", sizeof( rpl ));
 615                         strlcat( rpl, Client_User( c ), sizeof( rpl ));
 616                         strlcat( rpl, "@", sizeof( rpl ));
 617                         strlcat( rpl, Client_Hostname( c ), sizeof( rpl ));
 618                         strlcat( rpl, " ", sizeof( rpl ));
 619                 }
 620         }
 621         ngt_TrimLastChr( rpl, ' ');
 622
 623         return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
 624 } /* IRC_USERHOST */
 625
 626
 627 /**
 628  * Handler for the IRC command "USERS".
 629  * See RFC 2812 section 4.6. As suggested there the command is disabled.
 630  */
 631 GLOBAL bool
 632 IRC_USERS(CLIENT * Client, REQUEST * Req)
 633 {
 634         return IRC_WriteStrClient(Client, ERR_USERSDISABLED_MSG,
 635                                   Client_ID(Client), Req->command);
 636 } /* IRC_USERS */
 637
 638
 639 GLOBAL bool
 640 IRC_VERSION( CLIENT *Client, REQUEST *Req )
 641 {
 642         CLIENT *target, *prefix;
 643 #ifdef CVSDATE
 644         char ver[12], vertxt[30];
 645 #endif
 646
 647         assert( Client != NULL );
 648         assert( Req != NULL );
 649
 650         /* Falsche Anzahl Parameter? */
 651         if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 652
 653         /* Ziel suchen */
 654         if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
 655         else target = Client_ThisServer( );
 656
 657         /* Prefix ermitteln */
 658         if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
 659         else prefix = Client;
 660         if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 661
 662         /* An anderen Server weiterleiten? */
 663         if( target != Client_ThisServer( ))
 664         {
 665                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
 666
 667                 /* forwarden */
 668                 IRC_WriteStrClientPrefix( target, prefix, "VERSION %s", Req->argv[0] );
 669                 return CONNECTED;
 670         }
 671
 672         /* mit Versionsinfo antworten */
 673         IRC_SetPenalty( Client, 1 );
 674 #ifdef CVSDATE
 675         strlcpy( ver, CVSDATE, sizeof( ver ));
 676         strncpy( ver + 4, ver + 5, 2 );
 677         strncpy( ver + 6, ver + 8, 3 );
 678         snprintf( vertxt, sizeof( vertxt ), "%s(%s)", PACKAGE_VERSION, ver );
 679         return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( prefix ), PACKAGE_NAME, vertxt, NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition );
 680 #else
 681         return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( prefix ), PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition );
 682 #endif
 683 } /* IRC_VERSION */
 684
 685
 686
 687 static bool
 688 write_whoreply(CLIENT *Client, CLIENT *c, const char *channelname, const char *flags)
 689 {
 690         return IRC_WriteStrClient(Client, RPL_WHOREPLY_MSG, Client_ID(Client), channelname,
 691                         Client_User(c), Client_Hostname(c), Client_ID(Client_Introducer(c)), Client_ID(c),
 692                         flags, Client_Hops(c), Client_Info(c));
 693 }
 694
 695
 696 static const char *
 697 who_flags_status(const char *client_modes)
 698 {
 699         if (strchr(client_modes, 'a'))
 700                 return "G"; /* away */
 701         return "H";
 702 }
 703
 704
 705 static const char *
 706 who_flags_qualifier(const char *chan_user_modes)
 707 {
 708         if (strchr(chan_user_modes, 'o'))
 709                 return "@";
 710         else if (strchr(chan_user_modes, 'v'))
 711                 return "+";
 712         return "";
 713 }
 714
 715
 716 static bool
 717 IRC_Send_WHO(CLIENT *Client, CHANNEL *Chan, bool OnlyOps)
 718 {
 719         bool is_visible, is_member, is_ircop;
 720         CL2CHAN *cl2chan;
 721         const char *client_modes;
 722         const char *chan_user_modes;
 723         char flags[8];
 724         CLIENT *c;
 725
 726         assert( Client != NULL );
 727         assert( Chan != NULL );
 728
 729         is_member = Channel_IsMemberOf(Chan, Client);
 730
 731         /* Secret channel? */
 732         if (!is_member && strchr(Channel_Modes(Chan), 's'))
 733                 return CONNECTED;
 734
 735         cl2chan = Channel_FirstMember(Chan);
 736         for (; cl2chan ; cl2chan = Channel_NextMember(Chan, cl2chan)) {
 737                 c = Channel_GetClient(cl2chan);
 738
 739                 client_modes = Client_Modes(c);
 740                 is_ircop = strchr(client_modes, 'o') != NULL;
 741                 if (OnlyOps && !is_ircop)
 742                         continue;
 743
 744                 is_visible = strchr(client_modes, 'i') == NULL;
 745                 if (is_member || is_visible) {
 746                         strcpy(flags, who_flags_status(client_modes));
 747                         if (is_ircop)
 748                                 strlcat(flags, "*", sizeof(flags));
 749
 750                         chan_user_modes = Channel_UserModes(Chan, c);
 751                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 752
 753                         if (!write_whoreply(Client, c, Channel_Name(Chan), flags))
 754                                 return DISCONNECTED;
 755                 }
 756         }
 757         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
 758 } /* IRC_Send_WHO */
 759
 760
 761
 762 static bool
 763 MatchCaseInsensitive(const char *pattern, const char *searchme)
 764 {
 765         char haystack[COMMAND_LEN];
 766
 767         strlcpy(haystack, searchme, sizeof(haystack));
 768
 769         ngt_LowerStr(haystack);
 770
 771         return Match(pattern, haystack);
 772 }
 773
 774
 775 GLOBAL bool
 776 IRC_WHO( CLIENT *Client, REQUEST *Req )
 777 {
 778         bool only_ops, have_arg, client_match;
 779         const char *channelname, *client_modes, *chan_user_modes;
 780         char pattern[COMMAND_LEN];
 781         char flags[4];
 782         CL2CHAN *cl2chan;
 783         CHANNEL *chan, *cn;
 784         CLIENT *c;
 785
 786         assert( Client != NULL );
 787         assert( Req != NULL );
 788
 789         if (Req->argc > 2)
 790                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 791
 792         only_ops = false;
 793         have_arg = false;
 794
 795         if (Req->argc == 2) {
 796                 if (strcmp(Req->argv[1], "o") == 0)
 797                         only_ops = true;
 798 #ifdef STRICT_RFC
 799                 else return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 800 #endif
 801         }
 802
 803         IRC_SetPenalty(Client, 1);
 804         if (Req->argc >= 1) { /* Channel or Mask. */
 805                 chan = Channel_Search(Req->argv[0]);
 806                 if (chan)
 807                         return IRC_Send_WHO(Client, chan, only_ops);
 808                 if (strcmp(Req->argv[0], "0") != 0) { /* RFC stupidity, same as no arguments */
 809                         have_arg = true;
 810                         strlcpy(pattern, Req->argv[0], sizeof(pattern));
 811                         ngt_LowerStr(pattern);
 812                         IRC_SetPenalty(Client, 3);
 813                 }
 814         }
 815
 816         for (c = Client_First(); c != NULL; c = Client_Next(c)) {
 817                 if (Client_Type(c) != CLIENT_USER)
 818                         continue;
 819                  /*
 820                   * RFC 2812, 3.6.1:
 821                   * In the absence of the parameter, all visible (users who aren't
 822                   * invisible (user mode +i) and who don't have a common channel
 823                   * with the requesting client) are listed.
 824                   *
 825                   * The same result can be achieved by using a [sic] of "0"
 826                   * or any wildcard which will end up matching every visible user.
 827                   *
 828                   * The [sic] passed to WHO is matched against users' host, server, real name and
 829                   * nickname if the channel cannot be found.
 830                   */
 831                 client_modes = Client_Modes(c);
 832                 if (strchr(client_modes, 'i'))
 833                         continue;
 834
 835                 if (only_ops && !strchr(client_modes, 'o'))
 836                         continue;
 837
 838                 if (have_arg) { /* match pattern against user host/server/name/nick */
 839                         client_match = MatchCaseInsensitive(pattern, Client_Hostname(c)); /* user's host */
 840                         if (!client_match)
 841                                 client_match = MatchCaseInsensitive(pattern, Client_ID(Client_Introducer(c))); /* server */
 842                         if (!client_match)
 843                                 client_match = Match(Req->argv[0], Client_Info(c)); /* realname */
 844                         if (!client_match)
 845                                 client_match = MatchCaseInsensitive(pattern, Client_ID(c)); /* nick name */
 846
 847                         if (!client_match) /* This isn't the client you're looking for */
 848                                 continue;
 849                 }
 850
 851                 strcpy(flags, who_flags_status(client_modes));
 852
 853                 if (strchr(client_modes, 'o')) /* this client is an operator */
 854                         strlcat(flags, "*", sizeof(flags));
 855
 856                 /* Search suitable channel */
 857                 cl2chan = Channel_FirstChannelOf(c);
 858                 while (cl2chan) {
 859                         cn = Channel_GetChannel(cl2chan);
 860                         if (Channel_IsMemberOf(cn, Client) ||
 861                                     !strchr(Channel_Modes(cn), 's'))
 862                         {
 863                                 channelname = Channel_Name(cn);
 864                                 break;
 865                         }
 866                         cl2chan = Channel_NextChannelOf(c, cl2chan);
 867                 }
 868                 if (cl2chan) {
 869                         chan = Channel_GetChannel(cl2chan);
 870                         chan_user_modes = Channel_UserModes(chan, c);
 871                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 872                 } else
 873                         channelname = "*";
 874
 875                 if (!write_whoreply(Client, c, channelname, flags))
 876                         return DISCONNECTED;
 877         }
 878
 879         if (Req->argc > 0)
 880                 channelname = Req->argv[0];
 881         else
 882                 channelname = "*";
 883
 884         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), channelname);
 885 } /* IRC_WHO */
 886
 887
 888 GLOBAL bool
 889 IRC_WHOIS( CLIENT *Client, REQUEST *Req )
 890 {
 891         CLIENT *from, *target, *c;
 892         char str[LINE_LEN + 1];
 893         CL2CHAN *cl2chan;
 894         CHANNEL *chan;
 895
 896         assert( Client != NULL );
 897         assert( Req != NULL );
 898
 899         /* Bad number of parameters? */
 900         if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 901
 902         /* Search client */
 903         c = Client_Search( Req->argv[Req->argc - 1] );
 904         if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
 905
 906         /* Search sender of the WHOIS */
 907         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 908         else from = Client;
 909         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 910
 911         /* Forward to other server? */
 912         if( Req->argc > 1 )
 913         {
 914                 /* Search target server (can be specified as nick of that server!) */
 915                 target = Client_Search( Req->argv[0] );
 916                 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 917         }
 918         else target = Client_ThisServer( );
 919
 920         assert( target != NULL );
 921
 922         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] );
 923
 924         /* Nick, user and name */
 925         if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
 926
 927         /* Server */
 928         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;
 929
 930         /* Channels */
 931         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 932         cl2chan = Channel_FirstChannelOf( c );
 933         while( cl2chan )
 934         {
 935                 chan = Channel_GetChannel( cl2chan );
 936                 assert( chan != NULL );
 937
 938                 /* next */
 939                 cl2chan = Channel_NextChannelOf( c, cl2chan );
 940
 941                 /* Secret channel? */
 942                 if( strchr( Channel_Modes( chan ), 's' ) && ! Channel_IsMemberOf( chan, Client )) continue;
 943
 944                 /* Concatenate channel names */
 945                 if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
 946                 if( strchr( Channel_UserModes( chan, c ), 'o' )) strlcat( str, "@", sizeof( str ));
 947                 else if( strchr( Channel_UserModes( chan, c ), 'v' )) strlcat( str, "+", sizeof( str ));
 948                 strlcat( str, Channel_Name( chan ), sizeof( str ));
 949
 950                 if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
 951                 {
 952                         /* Line becomes too long: send it! */
 953                         if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 954                         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 955                 }
 956         }
 957         if( str[strlen( str ) - 1] != ':')
 958         {
 959                 /* There is data left to send: */
 960                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 961         }
 962
 963         /* IRC-Operator? */
 964         if( Client_HasMode( c, 'o' ))
 965         {
 966                 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
 967         }
 968
 969         /* Idle and signon time (local clients only!) */
 970         if (Client_Conn(c) > NONE ) {
 971                 if (! IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
 972                         Client_ID(from), Client_ID(c),
 973                         (unsigned long)Conn_GetIdle(Client_Conn(c)),
 974                         (unsigned long)Conn_GetSignon(Client_Conn(c))))
 975                                 return DISCONNECTED;
 976         }
 977
 978         /* Away? */
 979         if( Client_HasMode( c, 'a' ))
 980         {
 981                 if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED;
 982         }
 983
 984         /* End of Whois */
 985         return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
 986 } /* IRC_WHOIS */
 987
 988
 989 /**
 990  * IRC "WHOWAS" function.
 991  * This function implements the IRC command "WHOWHAS". It handles local
 992  * requests and request that should be forwarded to other servers.
 993  */
 994 GLOBAL bool
 995 IRC_WHOWAS( CLIENT *Client, REQUEST *Req )
 996 {
 997         CLIENT *target, *prefix;
 998         WHOWAS *whowas;
 999         int max, last, count, i;
1000         char t_str[60];
1001
1002         assert( Client != NULL );
1003         assert( Req != NULL );
1004
1005         /* Wrong number of parameters? */
1006         if(( Req->argc < 1 ) || ( Req->argc > 3 ))
1007                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG,
1008                                            Client_ID( Client ), Req->command );
1009
1010         /* Search taget */
1011         if( Req->argc == 3 )
1012                 target = Client_Search( Req->argv[2] );
1013         else
1014                 target = Client_ThisServer( );
1015
1016         /* Get prefix */
1017         if( Client_Type( Client ) == CLIENT_SERVER )
1018                 prefix = Client_Search( Req->prefix );
1019         else
1020                 prefix = Client;
1021
1022         if( ! prefix )
1023                 return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG,
1024                                            Client_ID( Client ), Req->prefix );
1025
1026         /* Forward to other server? */
1027         if( target != Client_ThisServer( ))
1028         {
1029                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
1030                         return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG,
1031                                                    Client_ID( prefix ),
1032                                                    Req->argv[2] );
1033
1034                 /* Forward */
1035                 IRC_WriteStrClientPrefix( target, prefix, "WHOWAS %s %s %s",
1036                                           Req->argv[0], Req->argv[1],
1037                                           Req->argv[2] );
1038                 return CONNECTED;
1039         }
1040
1041         whowas = Client_GetWhowas( );
1042         last = Client_GetLastWhowasIndex( );
1043         if( last < 0 ) last = 0;
1044
1045         if( Req->argc > 1 )
1046         {
1047                 max = atoi( Req->argv[1] );
1048                 if( max < 1 ) max = MAX_WHOWAS;
1049         }
1050         else
1051                 max = DEFAULT_WHOWAS;
1052
1053         i = last;
1054         count = 0;
1055         do
1056         {
1057                 /* Used entry? */
1058                 if( whowas[i].time > 0 &&
1059                     strcasecmp( Req->argv[0], whowas[i].id ) == 0 )
1060                 {
1061                         (void)strftime( t_str, sizeof(t_str),
1062                                         "%a %b %d %H:%M:%S %Y",
1063                                         localtime( &whowas[i].time ));
1064
1065                         if( ! IRC_WriteStrClient( prefix, RPL_WHOWASUSER_MSG,
1066                                                   Client_ID( prefix ),
1067                                                   whowas[i].id,
1068                                                   whowas[i].user,
1069                                                   whowas[i].host,
1070                                                   whowas[i].info ))
1071                                 return DISCONNECTED;
1072
1073                         if( ! IRC_WriteStrClient( prefix, RPL_WHOISSERVER_MSG,
1074                                                   Client_ID( prefix ),
1075                                                   whowas[i].id,
1076                                                   whowas[i].server, t_str ))
1077                                 return DISCONNECTED;
1078
1079                         count++;
1080                         if( count >= max ) break;
1081                 }
1082
1083                 /* previos entry */
1084                 i--;
1085
1086                 /* "underflow", wrap around */
1087                 if( i < 0 ) i = MAX_WHOWAS - 1;
1088         } while( i != last );
1089
1090         return IRC_WriteStrClient( prefix, RPL_ENDOFWHOWAS_MSG,
1091                                    Client_ID( prefix ), Req->argv[0] );
1092 } /* IRC_WHOWAS */
1093
1094
1095 GLOBAL bool
1096 IRC_Send_LUSERS( CLIENT *Client )
1097 {
1098         unsigned long cnt;
1099 #ifndef STRICT_RFC
1100         unsigned long max;
1101 #endif
1102
1103         assert( Client != NULL );
1104
1105         /* Users, services and serevers in the network */
1106         if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
1107
1108         /* Number of IRC operators */
1109         cnt = Client_OperCount( );
1110         if( cnt > 0 )
1111         {
1112                 if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1113         }
1114
1115         /* Unknown connections */
1116         cnt = Client_UnknownCount( );
1117         if( cnt > 0 )
1118         {
1119                 if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1120         }
1121
1122         /* Number of created channels */
1123         if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
1124
1125         /* Number of local users, services and servers */
1126         if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
1127
1128 #ifndef STRICT_RFC
1129         /* Maximum number of local users */
1130         cnt = Client_MyUserCount();
1131         max = Client_MyMaxUserCount();
1132         if (! IRC_WriteStrClient(Client, RPL_LOCALUSERS_MSG, Client_ID(Client),
1133                         cnt, max, cnt, max))
1134                 return DISCONNECTED;
1135         /* Maximum number of users in the network */
1136         cnt = Client_UserCount();
1137         max = Client_MaxUserCount();
1138         if(! IRC_WriteStrClient(Client, RPL_NETUSERS_MSG, Client_ID(Client),
1139                         cnt, max, cnt, max))
1140                 return DISCONNECTED;
1141 #endif
1142
1143         return CONNECTED;
1144 } /* IRC_Send_LUSERS */
1145
1146
1147 static bool
1148 Show_MOTD_Start(CLIENT *Client)
1149 {
1150         return IRC_WriteStrClient(Client, RPL_MOTDSTART_MSG,
1151                 Client_ID( Client ), Client_ID( Client_ThisServer( )));
1152 }
1153
1154 static bool
1155 Show_MOTD_Sendline(CLIENT *Client, const char *msg)
1156 {
1157         return IRC_WriteStrClient(Client, RPL_MOTD_MSG, Client_ID( Client ), msg);
1158 }
1159
1160 static bool
1161 Show_MOTD_End(CLIENT *Client)
1162 {
1163         return IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ));
1164 }
1165
1166
1167 GLOBAL bool
1168 IRC_Show_MOTD( CLIENT *Client )
1169 {
1170         char line[127];
1171         FILE *fd;
1172
1173         assert( Client != NULL );
1174
1175         if (Conf_MotdPhrase[0]) {
1176                 if (!Show_MOTD_Start(Client))
1177                         return DISCONNECTED;
1178                 if (!Show_MOTD_Sendline(Client, Conf_MotdPhrase))
1179                         return DISCONNECTED;
1180
1181                 return Show_MOTD_End(Client);
1182         }
1183
1184         fd = fopen( Conf_MotdFile, "r" );
1185         if( ! fd ) {
1186                 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1187                 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1188         }
1189
1190         if (!Show_MOTD_Start( Client )) {
1191                 fclose(fd);
1192                 return false;
1193         }
1194
1195         while (fgets( line, (int)sizeof line, fd )) {
1196                 ngt_TrimLastChr( line, '\n');
1197
1198                 if( ! Show_MOTD_Sendline( Client, line)) {
1199                         fclose( fd );
1200                         return false;
1201                 }
1202         }
1203         fclose(fd);
1204         return Show_MOTD_End(Client);
1205 } /* IRC_Show_MOTD */
1206
1207
1208 GLOBAL bool
1209 IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan )
1210 {
1211         bool is_visible, is_member;
1212         char str[LINE_LEN + 1];
1213         CL2CHAN *cl2chan;
1214         CLIENT *cl;
1215
1216         assert( Client != NULL );
1217         assert( Chan != NULL );
1218
1219         if( Channel_IsMemberOf( Chan, Client )) is_member = true;
1220         else is_member = false;
1221
1222         /* Secret channel? */
1223         if( ! is_member && strchr( Channel_Modes( Chan ), 's' )) return CONNECTED;
1224
1225         /* Alle Mitglieder suchen */
1226         snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1227         cl2chan = Channel_FirstMember( Chan );
1228         while( cl2chan )
1229         {
1230                 cl = Channel_GetClient( cl2chan );
1231
1232                 if( strchr( Client_Modes( cl ), 'i' )) is_visible = false;
1233                 else is_visible = true;
1234
1235                 if( is_member || is_visible )
1236                 {
1237                         /* Nick anhaengen */
1238                         if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
1239                         if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strlcat( str, "@", sizeof( str ));
1240                         else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strlcat( str, "+", sizeof( str ));
1241                         strlcat( str, Client_ID( cl ), sizeof( str ));
1242
1243                         if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
1244                         {
1245                                 /* Zeile wird zu lang: senden! */
1246                                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1247                                 snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1248                         }
1249                 }
1250
1251                 /* naechstes Mitglied suchen */
1252                 cl2chan = Channel_NextMember( Chan, cl2chan );
1253         }
1254         if( str[strlen( str ) - 1] != ':')
1255         {
1256                 /* Es sind noch Daten da, die gesendet werden muessen */
1257                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1258         }
1259
1260         return CONNECTED;
1261 } /* IRC_Send_NAMES */
1262
1263
1264
1265 /**
1266  * Send the ISUPPORT numeric (005).
1267  * This numeric indicates the features that are supported by this server.
1268  * See <http://www.irc.org/tech_docs/005.html> for details.
1269  */
1270 GLOBAL bool
1271 IRC_Send_ISUPPORT PARAMS((CLIENT * Client))
1272 {
1273         if (!IRC_WriteStrClient(Client, RPL_ISUPPORT1_MSG, Client_ID(Client),
1274                                 Conf_MaxJoins))
1275                 return DISCONNECTED;
1276         return IRC_WriteStrClient(Client, RPL_ISUPPORT2_MSG, Client_ID(Client),
1277                                   CHANNEL_NAME_LEN - 1, Conf_MaxNickLength - 1,
1278                                   COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1,
1279                                   COMMAND_LEN - 113);
1280 } /* IRC_Send_ISUPPORT */
1281
1282
1283 /* -eof- */