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 1.43 2008/02/17 00:00:12 fw 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 GLOBAL bool
  89 IRC_ISON( CLIENT *Client, REQUEST *Req )
  90 {
  91         char rpl[COMMAND_LEN];
  92         CLIENT *c;
  93         char *ptr;
  94         int i;
  95
  96         assert( Client != NULL );
  97         assert( Req != NULL );
  98
  99         /* Falsche Anzahl Parameter? */
 100         if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 101
 102         strlcpy( rpl, RPL_ISON_MSG, sizeof rpl );
 103         for( i = 0; i < Req->argc; i++ )
 104         {
 105                 ptr = strtok( Req->argv[i], " " );
 106                 while( ptr )
 107                 {
 108                         ngt_TrimStr( ptr );
 109                         c = Client_Search( ptr );
 110                         if( c && ( Client_Type( c ) == CLIENT_USER ))
 111                         {
 112                                 /* Dieser Nick ist "online" */
 113                                 strlcat( rpl, ptr, sizeof( rpl ));
 114                                 strlcat( rpl, " ", sizeof( rpl ));
 115                         }
 116                         ptr = strtok( NULL, " " );
 117                 }
 118         }
 119         ngt_TrimLastChr(rpl, ' ');
 120
 121         return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
 122 } /* IRC_ISON */
 123
 124
 125 GLOBAL bool
 126 IRC_LINKS( CLIENT *Client, REQUEST *Req )
 127 {
 128         CLIENT *target, *from, *c;
 129         char *mask;
 130
 131         assert( Client != NULL );
 132         assert( Req != NULL );
 133
 134         /* Falsche Anzahl Parameter? */
 135         if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 136
 137         /* Server-Mask ermitteln */
 138         if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1];
 139         else mask = "*";
 140
 141         /* Absender ermitteln */
 142         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 143         else from = Client;
 144         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 145
 146         /* An anderen Server forwarden? */
 147         if( Req->argc == 2 )
 148         {
 149                 target = Client_Search( Req->argv[0] );
 150                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 151                 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] );
 152         }
 153
 154         /* Wer ist der Absender? */
 155         if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
 156         else target = Client;
 157         if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 158
 159         c = Client_First( );
 160         while( c )
 161         {
 162                 if( Client_Type( c ) == CLIENT_SERVER )
 163                 {
 164                         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;
 165                 }
 166                 c = Client_Next( c );
 167         }
 168
 169         IRC_SetPenalty( target, 1 );
 170         return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask );
 171 } /* IRC_LINKS */
 172
 173
 174 GLOBAL bool
 175 IRC_LUSERS( CLIENT *Client, REQUEST *Req )
 176 {
 177         CLIENT *target, *from;
 178
 179         assert( Client != NULL );
 180         assert( Req != NULL );
 181
 182         /* Falsche Anzahl Parameter? */
 183         if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 184
 185         /* Absender ermitteln */
 186         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 187         else from = Client;
 188         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 189
 190         /* An anderen Server forwarden? */
 191         if( Req->argc == 2 )
 192         {
 193                 target = Client_Search( Req->argv[1] );
 194                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 195                 else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] );
 196         }
 197
 198         /* Wer ist der Absender? */
 199         if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
 200         else target = Client;
 201         if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 202
 203         IRC_Send_LUSERS( target );
 204
 205         IRC_SetPenalty( target, 1 );
 206         return CONNECTED;
 207 } /* IRC_LUSERS */
 208
 209
 210 GLOBAL bool
 211 IRC_MOTD( CLIENT *Client, REQUEST *Req )
 212 {
 213         CLIENT *from, *target;
 214
 215         assert( Client != NULL );
 216         assert( Req != NULL );
 217
 218         /* Falsche Anzahl Parameter? */
 219         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 220
 221         /* From aus Prefix ermitteln */
 222         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 223         else from = Client;
 224         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 225
 226         if( Req->argc == 1 )
 227         {
 228                 /* an anderen Server forwarden */
 229                 target = Client_Search( Req->argv[0] );
 230                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 231
 232                 if( target != Client_ThisServer( ))
 233                 {
 234                         /* Ok, anderer Server ist das Ziel: forwarden */
 235                         return IRC_WriteStrClientPrefix( target, from, "MOTD %s", Req->argv[0] );
 236                 }
 237         }
 238
 239         IRC_SetPenalty( from, 3 );
 240         return IRC_Show_MOTD( from );
 241 } /* IRC_MOTD */
 242
 243
 244 GLOBAL bool
 245 IRC_NAMES( CLIENT *Client, REQUEST *Req )
 246 {
 247         char rpl[COMMAND_LEN], *ptr;
 248         CLIENT *target, *from, *c;
 249         CHANNEL *chan;
 250
 251         assert( Client != NULL );
 252         assert( Req != NULL );
 253
 254         /* Falsche Anzahl Parameter? */
 255         if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 256
 257         /* From aus Prefix ermitteln */
 258         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 259         else from = Client;
 260         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 261
 262         if( Req->argc == 2 )
 263         {
 264                 /* an anderen Server forwarden */
 265                 target = Client_Search( Req->argv[1] );
 266                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 267
 268                 if( target != Client_ThisServer( ))
 269                 {
 270                         /* Ok, anderer Server ist das Ziel: forwarden */
 271                         return IRC_WriteStrClientPrefix( target, from, "NAMES %s :%s", Req->argv[0], Req->argv[1] );
 272                 }
 273         }
 274
 275         if( Req->argc > 0 )
 276         {
 277                 /* bestimmte Channels durchgehen */
 278                 ptr = strtok( Req->argv[0], "," );
 279                 while( ptr )
 280                 {
 281                         chan = Channel_Search( ptr );
 282                         if( chan )
 283                         {
 284                                 /* Namen ausgeben */
 285                                 if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
 286                         }
 287                         if( ! IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), ptr )) return DISCONNECTED;
 288
 289                         /* naechsten Namen ermitteln */
 290                         ptr = strtok( NULL, "," );
 291                 }
 292                 return CONNECTED;
 293         }
 294
 295         /* alle Channels durchgehen */
 296         chan = Channel_First( );
 297         while( chan )
 298         {
 299                 /* Namen ausgeben */
 300                 if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
 301
 302                 /* naechster Channel */
 303                 chan = Channel_Next( chan );
 304         }
 305
 306         /* Nun noch alle Clients ausgeben, die in keinem Channel sind */
 307         c = Client_First( );
 308         snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
 309         while( c )
 310         {
 311                 if(( Client_Type( c ) == CLIENT_USER ) && ( Channel_FirstChannelOf( c ) == NULL ) && ( ! strchr( Client_Modes( c ), 'i' )))
 312                 {
 313                         /* Okay, das ist ein User: anhaengen */
 314                         if( rpl[strlen( rpl ) - 1] != ':' ) strlcat( rpl, " ", sizeof( rpl ));
 315                         strlcat( rpl, Client_ID( c ), sizeof( rpl ));
 316
 317                         if( strlen( rpl ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
 318                         {
 319                                 /* Zeile wird zu lang: senden! */
 320                                 if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
 321                                 snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
 322                         }
 323                 }
 324
 325                 /* naechster Client */
 326                 c = Client_Next( c );
 327         }
 328         if( rpl[strlen( rpl ) - 1] != ':')
 329         {
 330                 /* es wurden User gefunden */
 331                 if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
 332         }
 333
 334         IRC_SetPenalty( from, 1 );
 335         return IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), "*" );
 336 } /* IRC_NAMES */
 337
 338
 339 static unsigned int
 340 t_diff(time_t *t, const time_t div)
 341 {
 342         time_t diff, remain;
 343
 344         diff = *t / div;
 345
 346         remain = diff * div;
 347         *t -= remain;
 348
 349         return diff;
 350 }
 351
 352
 353 static unsigned int
 354 uptime_days(time_t *now)
 355 {
 356         return t_diff(now, 60 * 60 * 24);
 357 }
 358
 359
 360 static unsigned int
 361 uptime_hrs(time_t *now)
 362 {
 363         return t_diff(now, 60 * 60);
 364 }
 365
 366
 367 static unsigned int
 368 uptime_mins(time_t *now)
 369 {
 370          return t_diff(now, 60);
 371 }
 372
 373
 374 GLOBAL bool
 375 IRC_STATS( CLIENT *Client, REQUEST *Req )
 376 {
 377         CLIENT *from, *target, *cl;
 378         CONN_ID con;
 379         char query;
 380         COMMAND *cmd;
 381         time_t time_now;
 382         unsigned int days, hrs, mins;
 383
 384         assert( Client != NULL );
 385         assert( Req != NULL );
 386
 387         /* Falsche Anzahl Parameter? */
 388         if (Req->argc > 2)
 389                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 390
 391         /* From aus Prefix ermitteln */
 392         if (Client_Type(Client) == CLIENT_SERVER)
 393                 from = Client_Search(Req->prefix);
 394         else
 395                 from = Client;
 396
 397         if (! from)
 398                 return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix);
 399
 400         if (Req->argc == 2) {
 401                 /* an anderen Server forwarden */
 402                 target = Client_Search( Req->argv[1] );
 403                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
 404                         return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
 405
 406                 if( target != Client_ThisServer()) {
 407                         /* Ok, anderer Server ist das Ziel: forwarden */
 408                         return IRC_WriteStrClientPrefix( target, from, "STATS %s %s", Req->argv[0], Req->argv[1] );
 409                 }
 410         }
 411
 412         if (Req->argc > 0)
 413                 query = Req->argv[0][0] ? Req->argv[0][0] : '*';
 414         else
 415                 query = '*';
 416
 417         switch (query) {
 418                 case 'l':       /* Links */
 419                 case 'L':
 420                         time_now = time(NULL);
 421                         for (con = Conn_First(); con != NONE ;con = Conn_Next(con)) {
 422                                 cl = Conn_GetClient(con);
 423                                 if (!cl)
 424                                         continue;
 425                                 if ((Client_Type(cl) == CLIENT_SERVER) || (cl == Client)) {
 426                                         /* Server link or our own connection */
 427 #ifdef ZLIB
 428                                         if (Conn_Options(con) & CONN_ZIP) {
 429                                                 if (!IRC_WriteStrClient(from, RPL_STATSLINKINFOZIP_MSG,
 430                                                         Client_ID(from), Client_Mask(cl), Conn_SendQ(con),
 431                                                         Conn_SendMsg(con), Zip_SendBytes(con), Conn_SendBytes(con),
 432                                                         Conn_RecvMsg(con), Zip_RecvBytes(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 433                                                                 return DISCONNECTED;
 434                                                 continue;
 435                                         }
 436 #endif
 437                                         if (!IRC_WriteStrClient(from, RPL_STATSLINKINFO_MSG, Client_ID(from),
 438                                                 Client_Mask(cl), Conn_SendQ(con), Conn_SendMsg(con), Conn_SendBytes(con),
 439                                                 Conn_RecvMsg(con), Conn_RecvBytes(con), (long)(time_now - Conn_StartTime(con))))
 440                                                         return DISCONNECTED;
 441                                 }
 442                         }
 443                         break;
 444                 case 'm':       /* IRC-Commands */
 445                 case 'M':
 446                         cmd = Parse_GetCommandStruct( );
 447                         for (; cmd->name ; cmd++) {
 448                                 if (cmd->lcount == 0 && cmd->rcount == 0)
 449                                         continue;
 450                                 if (!IRC_WriteStrClient(from, RPL_STATSCOMMANDS_MSG, Client_ID(from),
 451                                                 cmd->name, cmd->lcount, cmd->bytes, cmd->rcount))
 452                                                         return DISCONNECTED;
 453                         }
 454                         break;
 455                 case 'u':       /* server uptime */
 456                 case 'U':
 457                         time_now = time(NULL) - NGIRCd_Start;
 458                         days = uptime_days(&time_now);
 459                         hrs = uptime_hrs(&time_now);
 460                         mins = uptime_mins(&time_now);
 461                         if (!IRC_WriteStrClient(from, RPL_STATSUPTIME, Client_ID(from),
 462                                         days, hrs, mins, (unsigned int) time_now))
 463                                                 return DISCONNECTED;
 464                         break;
 465         }
 466
 467         IRC_SetPenalty(from, 2);
 468         return IRC_WriteStrClient(from, RPL_ENDOFSTATS_MSG, Client_ID(from), query);
 469 } /* IRC_STATS */
 470
 471
 472 GLOBAL bool
 473 IRC_TIME( CLIENT *Client, REQUEST *Req )
 474 {
 475         CLIENT *from, *target;
 476         char t_str[64];
 477         time_t t;
 478
 479         assert( Client != NULL );
 480         assert( Req != NULL );
 481
 482         /* Falsche Anzahl Parameter? */
 483         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 484
 485         /* From aus Prefix ermitteln */
 486         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 487         else from = Client;
 488         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 489
 490         if( Req->argc == 1 )
 491         {
 492                 /* an anderen Server forwarden */
 493                 target = Client_Search( Req->argv[0] );
 494                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
 495
 496                 if( target != Client_ThisServer( ))
 497                 {
 498                         /* Ok, anderer Server ist das Ziel: forwarden */
 499                         return IRC_WriteStrClientPrefix( target, from, "TIME %s", Req->argv[0] );
 500                 }
 501         }
 502
 503         t = time( NULL );
 504         (void)strftime( t_str, 60, "%A %B %d %Y -- %H:%M %Z", localtime( &t ));
 505         return IRC_WriteStrClient( from, RPL_TIME_MSG, Client_ID( from ), Client_ID( Client_ThisServer( )), t_str );
 506 } /* IRC_TIME */
 507
 508
 509 GLOBAL bool
 510 IRC_USERHOST( CLIENT *Client, REQUEST *Req )
 511 {
 512         char rpl[COMMAND_LEN];
 513         CLIENT *c;
 514         int max, i;
 515
 516         assert( Client != NULL );
 517         assert( Req != NULL );
 518
 519         /* Falsche Anzahl Parameter? */
 520         if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 521
 522         if( Req->argc > 5 ) max = 5;
 523         else max = Req->argc;
 524
 525         strlcpy( rpl, RPL_USERHOST_MSG, sizeof rpl );
 526         for( i = 0; i < max; i++ )
 527         {
 528                 c = Client_Search( Req->argv[i] );
 529                 if( c && ( Client_Type( c ) == CLIENT_USER ))
 530                 {
 531                         /* Dieser Nick ist "online" */
 532                         strlcat( rpl, Client_ID( c ), sizeof( rpl ));
 533                         if( Client_HasMode( c, 'o' )) strlcat( rpl, "*", sizeof( rpl ));
 534                         strlcat( rpl, "=", sizeof( rpl ));
 535                         if( Client_HasMode( c, 'a' )) strlcat( rpl, "-", sizeof( rpl ));
 536                         else strlcat( rpl, "+", sizeof( rpl ));
 537                         strlcat( rpl, Client_User( c ), sizeof( rpl ));
 538                         strlcat( rpl, "@", sizeof( rpl ));
 539                         strlcat( rpl, Client_Hostname( c ), sizeof( rpl ));
 540                         strlcat( rpl, " ", sizeof( rpl ));
 541                 }
 542         }
 543         ngt_TrimLastChr( rpl, ' ');
 544
 545         return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
 546 } /* IRC_USERHOST */
 547
 548
 549 GLOBAL bool
 550 IRC_VERSION( CLIENT *Client, REQUEST *Req )
 551 {
 552         CLIENT *target, *prefix;
 553 #ifdef CVSDATE
 554         char ver[12], vertxt[30];
 555 #endif
 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         /* Ziel suchen */
 564         if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
 565         else target = Client_ThisServer( );
 566
 567         /* Prefix ermitteln */
 568         if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
 569         else prefix = Client;
 570         if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 571
 572         /* An anderen Server weiterleiten? */
 573         if( target != Client_ThisServer( ))
 574         {
 575                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
 576
 577                 /* forwarden */
 578                 IRC_WriteStrClientPrefix( target, prefix, "VERSION %s", Req->argv[0] );
 579                 return CONNECTED;
 580         }
 581
 582         /* mit Versionsinfo antworten */
 583         IRC_SetPenalty( Client, 1 );
 584 #ifdef CVSDATE
 585         strlcpy( ver, CVSDATE, sizeof( ver ));
 586         strncpy( ver + 4, ver + 5, 2 );
 587         strncpy( ver + 6, ver + 8, 3 );
 588         snprintf( vertxt, sizeof( vertxt ), "%s(%s)", PACKAGE_VERSION, ver );
 589         return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( prefix ), PACKAGE_NAME, vertxt, NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition );
 590 #else
 591         return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( prefix ), PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition );
 592 #endif
 593 } /* IRC_VERSION */
 594
 595
 596
 597 static bool
 598 write_whoreply(CLIENT *Client, CLIENT *c, const char *channelname, const char *flags)
 599 {
 600         return IRC_WriteStrClient(Client, RPL_WHOREPLY_MSG, Client_ID(Client), channelname,
 601                         Client_User(c), Client_Hostname(c), Client_ID(Client_Introducer(c)), Client_ID(c),
 602                         flags, Client_Hops(c), Client_Info(c));
 603 }
 604
 605
 606 static const char *
 607 who_flags_status(const char *client_modes)
 608 {
 609         if (strchr(client_modes, 'a'))
 610                 return "G"; /* away */
 611         return "H";
 612 }
 613
 614
 615 static const char *
 616 who_flags_qualifier(const char *chan_user_modes)
 617 {
 618         if (strchr(chan_user_modes, 'o'))
 619                 return "@";
 620         else if (strchr(chan_user_modes, 'v'))
 621                 return "+";
 622         return "";
 623 }
 624
 625
 626 static bool
 627 IRC_Send_WHO(CLIENT *Client, CHANNEL *Chan, bool OnlyOps)
 628 {
 629         bool is_visible, is_member, is_ircop;
 630         CL2CHAN *cl2chan;
 631         const char *client_modes;
 632         const char *chan_user_modes;
 633         char flags[8];
 634         CLIENT *c;
 635
 636         assert( Client != NULL );
 637         assert( Chan != NULL );
 638
 639         is_member = Channel_IsMemberOf(Chan, Client);
 640
 641         /* Secret channel? */
 642         if (!is_member && strchr(Channel_Modes(Chan), 's'))
 643                 return CONNECTED;
 644
 645         cl2chan = Channel_FirstMember(Chan);
 646         for (; cl2chan ; cl2chan = Channel_NextMember(Chan, cl2chan)) {
 647                 c = Channel_GetClient(cl2chan);
 648
 649                 client_modes = Client_Modes(c);
 650                 is_ircop = strchr(client_modes, 'o') != NULL;
 651                 if (OnlyOps && !is_ircop)
 652                         continue;
 653
 654                 is_visible = strchr(client_modes, 'i') == NULL;
 655                 if (is_member || is_visible) {
 656                         strcpy(flags, who_flags_status(client_modes));
 657                         if (is_ircop)
 658                                 strlcat(flags, "*", sizeof(flags));
 659
 660                         chan_user_modes = Channel_UserModes(Chan, c);
 661                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 662
 663                         if (!write_whoreply(Client, c, Channel_Name(Chan), flags))
 664                                 return DISCONNECTED;
 665                 }
 666         }
 667         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
 668 } /* IRC_Send_WHO */
 669
 670
 671
 672 static bool
 673 MatchCaseInsensitive(const char *pattern, const char *searchme)
 674 {
 675         char haystack[COMMAND_LEN];
 676
 677         strlcpy(haystack, searchme, sizeof(haystack));
 678
 679         ngt_LowerStr(haystack);
 680
 681         return Match(pattern, haystack);
 682 }
 683
 684
 685 GLOBAL bool
 686 IRC_WHO( CLIENT *Client, REQUEST *Req )
 687 {
 688         bool only_ops, have_arg, client_match;
 689         const char *channelname, *client_modes, *chan_user_modes;
 690         char pattern[COMMAND_LEN];
 691         char flags[4];
 692         CL2CHAN *cl2chan;
 693         CHANNEL *chan, *cn;
 694         CLIENT *c;
 695
 696         assert( Client != NULL );
 697         assert( Req != NULL );
 698
 699         if (Req->argc > 2)
 700                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 701
 702         only_ops = false;
 703         have_arg = false;
 704
 705         if (Req->argc == 2) {
 706                 if (strcmp(Req->argv[1], "o") == 0)
 707                         only_ops = true;
 708 #ifdef STRICT_RFC
 709                 else return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 710 #endif
 711         }
 712
 713         IRC_SetPenalty(Client, 1);
 714         if (Req->argc >= 1) { /* Channel or Mask. */
 715                 chan = Channel_Search(Req->argv[0]);
 716                 if (chan)
 717                         return IRC_Send_WHO(Client, chan, only_ops);
 718                 if (strcmp(Req->argv[0], "0") != 0) { /* RFC stupidity, same as no arguments */
 719                         have_arg = true;
 720                         strlcpy(pattern, Req->argv[0], sizeof(pattern));
 721                         ngt_LowerStr(pattern);
 722                         IRC_SetPenalty(Client, 3);
 723                 }
 724         }
 725
 726         for (c = Client_First(); c != NULL; c = Client_Next(c)) {
 727                 if (Client_Type(c) != CLIENT_USER)
 728                         continue;
 729                  /*
 730                   * RFC 2812, 3.6.1:
 731                   * In the absence of the parameter, all visible (users who aren't
 732                   * invisible (user mode +i) and who don't have a common channel
 733                   * with the requesting client) are listed.
 734                   *
 735                   * The same result can be achieved by using a [sic] of "0"
 736                   * or any wildcard which will end up matching every visible user.
 737                   *
 738                   * The [sic] passed to WHO is matched against users' host, server, real name and
 739                   * nickname if the channel cannot be found.
 740                   */
 741                 client_modes = Client_Modes(c);
 742                 if (strchr(client_modes, 'i'))
 743                         continue;
 744
 745                 if (only_ops && !strchr(client_modes, 'o'))
 746                         continue;
 747
 748                 if (have_arg) { /* match pattern against user host/server/name/nick */
 749                         client_match = MatchCaseInsensitive(pattern, Client_Hostname(c)); /* user's host */
 750                         if (!client_match)
 751                                 client_match = MatchCaseInsensitive(pattern, Client_ID(Client_Introducer(c))); /* server */
 752                         if (!client_match)
 753                                 client_match = Match(Req->argv[0], Client_Info(c)); /* realname */
 754                         if (!client_match)
 755                                 client_match = MatchCaseInsensitive(pattern, Client_ID(c)); /* nick name */
 756
 757                         if (!client_match) /* This isn't the client you're looking for */
 758                                 continue;
 759                 }
 760
 761                 strcpy(flags, who_flags_status(client_modes));
 762
 763                 if (strchr(client_modes, 'o')) /* this client is an operator */
 764                         strlcat(flags, "*", sizeof(flags));
 765
 766                 /* Search suitable channel */
 767                 cl2chan = Channel_FirstChannelOf(c);
 768                 while (cl2chan) {
 769                         cn = Channel_GetChannel(cl2chan);
 770                         if (Channel_IsMemberOf(cn, Client) ||
 771                                     !strchr(Channel_Modes(cn), 's'))
 772                         {
 773                                 channelname = Channel_Name(cn);
 774                                 break;
 775                         }
 776                         cl2chan = Channel_NextChannelOf(c, cl2chan);
 777                 }
 778                 if (cl2chan) {
 779                         chan = Channel_GetChannel(cl2chan);
 780                         chan_user_modes = Channel_UserModes(chan, c);
 781                         strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
 782                 } else
 783                         channelname = "*";
 784
 785                 if (!write_whoreply(Client, c, channelname, flags))
 786                         return DISCONNECTED;
 787         }
 788
 789         if (Req->argc > 0)
 790                 channelname = Req->argv[0];
 791         else
 792                 channelname = "*";
 793
 794         return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), channelname);
 795 } /* IRC_WHO */
 796
 797
 798 GLOBAL bool
 799 IRC_WHOIS( CLIENT *Client, REQUEST *Req )
 800 {
 801         CLIENT *from, *target, *c;
 802         char str[LINE_LEN + 1];
 803         CL2CHAN *cl2chan;
 804         CHANNEL *chan;
 805
 806         assert( Client != NULL );
 807         assert( Req != NULL );
 808
 809         /* Bad number of parameters? */
 810         if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 811
 812         /* Search client */
 813         c = Client_Search( Req->argv[Req->argc - 1] );
 814         if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
 815
 816         /* Search sender of the WHOIS */
 817         if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
 818         else from = Client;
 819         if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 820
 821         /* Forward to other server? */
 822         if( Req->argc > 1 )
 823         {
 824                 /* Search target server (can be specified as nick of that server!) */
 825                 target = Client_Search( Req->argv[0] );
 826                 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
 827         }
 828         else target = Client_ThisServer( );
 829
 830         assert( target != NULL );
 831
 832         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] );
 833
 834         /* Nick, user and name */
 835         if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
 836
 837         /* Server */
 838         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;
 839
 840         /* Channels */
 841         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 842         cl2chan = Channel_FirstChannelOf( c );
 843         while( cl2chan )
 844         {
 845                 chan = Channel_GetChannel( cl2chan );
 846                 assert( chan != NULL );
 847
 848                 /* next */
 849                 cl2chan = Channel_NextChannelOf( c, cl2chan );
 850
 851                 /* Secret channel? */
 852                 if( strchr( Channel_Modes( chan ), 's' ) && ! Channel_IsMemberOf( chan, Client )) continue;
 853
 854                 /* Concatenate channel names */
 855                 if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
 856                 if( strchr( Channel_UserModes( chan, c ), 'o' )) strlcat( str, "@", sizeof( str ));
 857                 else if( strchr( Channel_UserModes( chan, c ), 'v' )) strlcat( str, "+", sizeof( str ));
 858                 strlcat( str, Channel_Name( chan ), sizeof( str ));
 859
 860                 if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
 861                 {
 862                         /* Line becomes too long: send it! */
 863                         if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 864                         snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
 865                 }
 866         }
 867         if( str[strlen( str ) - 1] != ':')
 868         {
 869                 /* There is data left to send: */
 870                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
 871         }
 872
 873         /* IRC-Operator? */
 874         if( Client_HasMode( c, 'o' ))
 875         {
 876                 if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
 877         }
 878
 879         /* Idle and signon time (local clients only!) */
 880         if (Client_Conn(c) > NONE ) {
 881                 if (! IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
 882                         Client_ID(from), Client_ID(c),
 883                         (unsigned long)Conn_GetIdle(Client_Conn(c)),
 884                         (unsigned long)Conn_GetSignon(Client_Conn(c))))
 885                                 return DISCONNECTED;
 886         }
 887
 888         /* Away? */
 889         if( Client_HasMode( c, 'a' ))
 890         {
 891                 if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED;
 892         }
 893
 894         /* End of Whois */
 895         return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
 896 } /* IRC_WHOIS */
 897
 898
 899 /**
 900  * IRC "WHOWAS" function.
 901  * This function implements the IRC command "WHOWHAS". It handles local
 902  * requests and request that should be forwarded to other servers.
 903  */
 904 GLOBAL bool
 905 IRC_WHOWAS( CLIENT *Client, REQUEST *Req )
 906 {
 907         CLIENT *target, *prefix;
 908         WHOWAS *whowas;
 909         int max, last, count, i;
 910         char t_str[60];
 911
 912         assert( Client != NULL );
 913         assert( Req != NULL );
 914
 915         /* Wrong number of parameters? */
 916         if(( Req->argc < 1 ) || ( Req->argc > 3 ))
 917                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG,
 918                                            Client_ID( Client ), Req->command );
 919
 920         /* Search taget */
 921         if( Req->argc == 3 )
 922                 target = Client_Search( Req->argv[2] );
 923         else
 924                 target = Client_ThisServer( );
 925
 926         /* Get prefix */
 927         if( Client_Type( Client ) == CLIENT_SERVER )
 928                 prefix = Client_Search( Req->prefix );
 929         else
 930                 prefix = Client;
 931
 932         if( ! prefix )
 933                 return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG,
 934                                            Client_ID( Client ), Req->prefix );
 935
 936         /* Forward to other server? */
 937         if( target != Client_ThisServer( ))
 938         {
 939                 if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
 940                         return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG,
 941                                                    Client_ID( prefix ),
 942                                                    Req->argv[2] );
 943
 944                 /* Forward */
 945                 IRC_WriteStrClientPrefix( target, prefix, "WHOWAS %s %s %s",
 946                                           Req->argv[0], Req->argv[1],
 947                                           Req->argv[2] );
 948                 return CONNECTED;
 949         }
 950
 951         whowas = Client_GetWhowas( );
 952         last = Client_GetLastWhowasIndex( );
 953         if( last < 0 ) last = 0;
 954
 955         if( Req->argc > 1 )
 956         {
 957                 max = atoi( Req->argv[1] );
 958                 if( max < 1 ) max = MAX_WHOWAS;
 959         }
 960         else
 961                 max = DEFAULT_WHOWAS;
 962
 963         i = last;
 964         count = 0;
 965         do
 966         {
 967                 /* Used entry? */
 968                 if( whowas[i].time > 0 &&
 969                     strcasecmp( Req->argv[0], whowas[i].id ) == 0 )
 970                 {
 971                         (void)strftime( t_str, sizeof(t_str),
 972                                         "%a %b %d %H:%M:%S %Y",
 973                                         localtime( &whowas[i].time ));
 974
 975                         if( ! IRC_WriteStrClient( prefix, RPL_WHOWASUSER_MSG,
 976                                                   Client_ID( prefix ),
 977                                                   whowas[i].id,
 978                                                   whowas[i].user,
 979                                                   whowas[i].host,
 980                                                   whowas[i].info ))
 981                                 return DISCONNECTED;
 982
 983                         if( ! IRC_WriteStrClient( prefix, RPL_WHOISSERVER_MSG,
 984                                                   Client_ID( prefix ),
 985                                                   whowas[i].id,
 986                                                   whowas[i].server, t_str ))
 987                                 return DISCONNECTED;
 988
 989                         count++;
 990                         if( count >= max ) break;
 991                 }
 992
 993                 /* previos entry */
 994                 i--;
 995
 996                 /* "underflow", wrap around */
 997                 if( i < 0 ) i = MAX_WHOWAS - 1;
 998         } while( i != last );
 999
1000         return IRC_WriteStrClient( prefix, RPL_ENDOFWHOWAS_MSG,
1001                                    Client_ID( prefix ), Req->argv[0] );
1002 } /* IRC_WHOWAS */
1003
1004
1005 GLOBAL bool
1006 IRC_Send_LUSERS( CLIENT *Client )
1007 {
1008         unsigned long cnt;
1009 #ifndef STRICT_RFC
1010         unsigned long max;
1011 #endif
1012
1013         assert( Client != NULL );
1014
1015         /* Users, services and serevers in the network */
1016         if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
1017
1018         /* Number of IRC operators */
1019         cnt = Client_OperCount( );
1020         if( cnt > 0 )
1021         {
1022                 if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1023         }
1024
1025         /* Unknown connections */
1026         cnt = Client_UnknownCount( );
1027         if( cnt > 0 )
1028         {
1029                 if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
1030         }
1031
1032         /* Number of created channels */
1033         if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
1034
1035         /* Number of local users, services and servers */
1036         if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
1037
1038 #ifndef STRICT_RFC
1039         /* Maximum number of local users */
1040         cnt = Client_MyUserCount();
1041         max = Client_MyMaxUserCount();
1042         if (! IRC_WriteStrClient(Client, RPL_LOCALUSERS_MSG, Client_ID(Client),
1043                         cnt, max, cnt, max))
1044                 return DISCONNECTED;
1045         /* Maximum number of users in the network */
1046         cnt = Client_UserCount();
1047         max = Client_MaxUserCount();
1048         if(! IRC_WriteStrClient(Client, RPL_NETUSERS_MSG, Client_ID(Client),
1049                         cnt, max, cnt, max))
1050                 return DISCONNECTED;
1051 #endif
1052
1053         return CONNECTED;
1054 } /* IRC_Send_LUSERS */
1055
1056
1057 static bool
1058 Show_MOTD_Start(CLIENT *Client)
1059 {
1060         return IRC_WriteStrClient(Client, RPL_MOTDSTART_MSG,
1061                 Client_ID( Client ), Client_ID( Client_ThisServer( )));
1062 }
1063
1064 static bool
1065 Show_MOTD_Sendline(CLIENT *Client, const char *msg)
1066 {
1067         return IRC_WriteStrClient(Client, RPL_MOTD_MSG, Client_ID( Client ), msg);
1068 }
1069
1070 static bool
1071 Show_MOTD_End(CLIENT *Client)
1072 {
1073         return IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ));
1074 }
1075
1076
1077 GLOBAL bool
1078 IRC_Show_MOTD( CLIENT *Client )
1079 {
1080         char line[127];
1081         FILE *fd;
1082
1083         assert( Client != NULL );
1084
1085         if (Conf_MotdPhrase[0]) {
1086                 if (!Show_MOTD_Start(Client))
1087                         return DISCONNECTED;
1088                 if (!Show_MOTD_Sendline(Client, Conf_MotdPhrase))
1089                         return DISCONNECTED;
1090
1091                 return Show_MOTD_End(Client);
1092         }
1093
1094         fd = fopen( Conf_MotdFile, "r" );
1095         if( ! fd ) {
1096                 Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
1097                 return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
1098         }
1099
1100         if (!Show_MOTD_Start( Client )) {
1101                 fclose(fd);
1102                 return false;
1103         }
1104
1105         while (fgets( line, (int)sizeof line, fd )) {
1106                 ngt_TrimLastChr( line, '\n');
1107
1108                 if( ! Show_MOTD_Sendline( Client, line)) {
1109                         fclose( fd );
1110                         return false;
1111                 }
1112         }
1113         fclose(fd);
1114         return Show_MOTD_End(Client);
1115 } /* IRC_Show_MOTD */
1116
1117
1118 GLOBAL bool
1119 IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan )
1120 {
1121         bool is_visible, is_member;
1122         char str[LINE_LEN + 1];
1123         CL2CHAN *cl2chan;
1124         CLIENT *cl;
1125
1126         assert( Client != NULL );
1127         assert( Chan != NULL );
1128
1129         if( Channel_IsMemberOf( Chan, Client )) is_member = true;
1130         else is_member = false;
1131
1132         /* Secret channel? */
1133         if( ! is_member && strchr( Channel_Modes( Chan ), 's' )) return CONNECTED;
1134
1135         /* Alle Mitglieder suchen */
1136         snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1137         cl2chan = Channel_FirstMember( Chan );
1138         while( cl2chan )
1139         {
1140                 cl = Channel_GetClient( cl2chan );
1141
1142                 if( strchr( Client_Modes( cl ), 'i' )) is_visible = false;
1143                 else is_visible = true;
1144
1145                 if( is_member || is_visible )
1146                 {
1147                         /* Nick anhaengen */
1148                         if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
1149                         if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strlcat( str, "@", sizeof( str ));
1150                         else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strlcat( str, "+", sizeof( str ));
1151                         strlcat( str, Client_ID( cl ), sizeof( str ));
1152
1153                         if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
1154                         {
1155                                 /* Zeile wird zu lang: senden! */
1156                                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1157                                 snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
1158                         }
1159                 }
1160
1161                 /* naechstes Mitglied suchen */
1162                 cl2chan = Channel_NextMember( Chan, cl2chan );
1163         }
1164         if( str[strlen( str ) - 1] != ':')
1165         {
1166                 /* Es sind noch Daten da, die gesendet werden muessen */
1167                 if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
1168         }
1169
1170         return CONNECTED;
1171 } /* IRC_Send_NAMES */
1172
1173
1174
1175 /**
1176  * Send the ISUPPORT numeric (005).
1177  * This numeric indicates the features that are supported by this server.
1178  * See <http://www.irc.org/tech_docs/005.html> for details.
1179  */
1180 GLOBAL bool
1181 IRC_Send_ISUPPORT PARAMS((CLIENT * Client))
1182 {
1183         if (!IRC_WriteStrClient(Client, RPL_ISUPPORT1_MSG, Client_ID(Client),
1184                                 Conf_MaxJoins))
1185                 return DISCONNECTED;
1186         return IRC_WriteStrClient(Client, RPL_ISUPPORT2_MSG, Client_ID(Client),
1187                                   CHANNEL_NAME_LEN - 1, Conf_MaxNickLength - 1,
1188                                   COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1,
1189                                   COMMAND_LEN - 113);
1190 } /* IRC_Send_ISUPPORT */
1191
1192
1193 /* -eof- */