src/ngircd/irc-mode.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001,2002 by 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 commands for mode changes (MODE, AWAY, ...)
  12  */
  13
  14
  15 #include "portab.h"
  16
  17 static char UNUSED id[] = "$Id: irc-mode.c,v 1.20 2002/12/15 15:51:24 alex Exp $";
  18
  19 #include "imp.h"
  20 #include <assert.h>
  21 #include <string.h>
  22
  23 #include "conn.h"
  24 #include "client.h"
  25 #include "channel.h"
  26 #include "defines.h"
  27 #include "irc-write.h"
  28 #include "lists.h"
  29 #include "log.h"
  30 #include "parse.h"
  31 #include "messages.h"
  32 #include "resolve.h"
  33 #include "conf.h"
  34
  35 #include "exp.h"
  36 #include "irc-mode.h"
  37
  38
  39 LOCAL BOOLEAN Client_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ));
  40 LOCAL BOOLEAN Channel_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel ));
  41
  42 LOCAL BOOLEAN Add_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  43 LOCAL BOOLEAN Add_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  44
  45 LOCAL BOOLEAN Del_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  46 LOCAL BOOLEAN Del_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  47
  48 LOCAL BOOLEAN Send_ListChange PARAMS(( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask ));
  49
  50
  51 GLOBAL BOOLEAN
  52 IRC_MODE( CLIENT *Client, REQUEST *Req )
  53 {
  54         CLIENT *cl, *origin;
  55         CHANNEL *chan;
  56
  57         assert( Client != NULL );
  58         assert( Req != NULL );
  59
  60         /* No parameters? */
  61         if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  62
  63         /* Origin for answers */
  64         if( Client_Type( Client ) == CLIENT_SERVER )
  65         {
  66                 origin = Client_Search( Req->prefix );
  67                 if( ! origin ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
  68         }
  69         else origin = Client;
  70
  71         /* Channel or user mode? */
  72         cl = chan = NULL;
  73         if( Client_IsValidNick( Req->argv[0] )) cl = Client_Search( Req->argv[0] );
  74         if( Channel_IsValidName( Req->argv[0] )) chan = Channel_Search( Req->argv[0] );
  75
  76         if( cl ) return Client_Mode( Client, Req, origin, cl );
  77         if( chan ) return Channel_Mode( Client, Req, origin, chan );
  78
  79         /* No target found! */
  80         return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
  81 } /* IRC_MODE */
  82
  83
  84 LOCAL BOOLEAN
  85 Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
  86 {
  87         /* Handle client mode requests */
  88
  89         CHAR the_modes[COMMAND_LEN], x[2], *mode_ptr;
  90         BOOLEAN ok, set;
  91         INT mode_arg;
  92
  93         /* Is the client allowed to request or change the modes? */
  94         if( Client_Type( Client ) == CLIENT_USER )
  95         {
  96                 /* Users are only allowed to manipulate their own modes! */
  97                 if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
  98         }
  99
 100         /* Mode request: let's answer it :-) */
 101         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
 102
 103         mode_arg = 1;
 104         mode_ptr = Req->argv[mode_arg];
 105
 106         /* Initial state: set or unset modes? */
 107         if( *mode_ptr == '+' ) set = TRUE;
 108         else if( *mode_ptr == '-' ) set = FALSE;
 109         else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
 110
 111         /* Prepare reply string */
 112         if( set ) strcpy( the_modes, "+" );
 113         else strcpy( the_modes, "-" );
 114
 115         x[1] = '\0';
 116         ok = CONNECTED;
 117         while( mode_ptr )
 118         {
 119                 mode_ptr++;
 120                 if( ! *mode_ptr )
 121                 {
 122                         /* Try next argument if there's any */
 123                         mode_arg++;
 124                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 125                         else break;
 126                 }
 127
 128                 switch( *mode_ptr )
 129                 {
 130                         case '+':
 131                         case '-':
 132                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 133                                 {
 134                                         /* Action modifier ("+"/"-") must be changed ... */
 135                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 136                                         {
 137                                                 /* Adjust last action modifier in result */
 138                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 139                                         }
 140                                         else
 141                                         {
 142                                                 /* Append modifier character to result string */
 143                                                 x[0] = *mode_ptr; strcat( the_modes, x );
 144                                         }
 145                                         if( *mode_ptr == '+' ) set = TRUE;
 146                                         else set = FALSE;
 147                                 }
 148                                 continue;
 149                 }
 150
 151                 x[0] = '\0';
 152                 if( Client_Type( Client ) == CLIENT_SERVER )
 153                 {
 154                         /* MODE request was received from a server:
 155                          * therefore don't validate but trust it! */
 156                         x[0] = *mode_ptr;
 157                 }
 158                 else
 159                 {
 160                         /* Validate modes */
 161                         switch( *mode_ptr )
 162                         {
 163                                 case 'i':
 164                                         /* Invisible */
 165                                         x[0] = 'i';
 166                                         break;
 167                                 case 'o':
 168                                         /* IRC operator (only unsetable!) */
 169                                         if( ! set )
 170                                         {
 171                                                 Client_SetOperByMe( Target, FALSE );
 172                                                 x[0] = 'o';
 173                                         }
 174                                         else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 175                                         break;
 176                                 case 'r':
 177                                         /* Restricted (only setable) */
 178                                         if( set ) x[0] = 'r';
 179                                         else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
 180                                         break;
 181                                 case 's':
 182                                         /* Server messages */
 183                                         x[0] = 's';
 184                                         break;
 185                                 default:
 186                                         Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ));
 187                                         ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 188                                         x[0] = '\0';
 189                         }
 190                 }
 191                 if( ! ok ) break;
 192
 193                 /* Is there a valid mode change? */
 194                 if( ! x[0] ) continue;
 195
 196                 if( set )
 197                 {
 198                         /* Set mode */
 199                         if( Client_ModeAdd( Target, x[0] )) strcat( the_modes, x );
 200
 201                 }
 202                 else
 203                 {
 204                         /* Unset mode */
 205                         if( Client_ModeDel( Target, x[0] )) strcat( the_modes, x );
 206                 }
 207         }
 208
 209         /* Are there changed modes? */
 210         if( the_modes[1] )
 211         {
 212                 /* Remoce needless action modifier characters */
 213                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 214
 215                 if( Client_Type( Client ) == CLIENT_SERVER )
 216                 {
 217                         /* Forward modes to other servers */
 218                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 219                 }
 220                 else
 221                 {
 222                         /* Send reply to client and inform other servers */
 223                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s", Client_ID( Target ), the_modes );
 224                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 225                 }
 226                 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( Target ), Client_Modes( Target ));
 227         }
 228
 229         return ok;
 230 } /* Client_Mode */
 231
 232
 233 LOCAL BOOLEAN
 234 Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 235 {
 236         /* Handle channel and channel-user modes */
 237
 238         CHAR the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], *mode_ptr;
 239         BOOLEAN ok, set, modeok, skiponce;
 240         INT mode_arg, arg_arg;
 241         CLIENT *client;
 242
 243         /* Mode request: let's answer it :-) */
 244         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 245
 246         /* Is the user allowed to change modes? */
 247         if( Client_Type( Client ) == CLIENT_USER )
 248         {
 249                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = TRUE;
 250                 else modeok = FALSE;
 251                 if( Conf_OperCanMode )
 252                 {
 253                         /* auch IRC-Operatoren duerfen MODE verwenden */
 254                         if( Client_OperByMe( Origin )) modeok = TRUE;
 255                 }
 256         }
 257         else modeok = TRUE;
 258
 259         mode_arg = 1;
 260         mode_ptr = Req->argv[mode_arg];
 261         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 262         else arg_arg = -1;
 263
 264         /* Initial state: set or unset modes? */
 265         skiponce = FALSE;
 266         if( *mode_ptr == '-' ) set = FALSE;
 267         else if( *mode_ptr == '+' ) set = TRUE;
 268         else set = skiponce = TRUE;
 269
 270         /* Prepare reply string */
 271         if( set ) strcpy( the_modes, "+" );
 272         else strcpy( the_modes, "-" );
 273         strcpy( the_args, " " );
 274
 275         x[1] = '\0';
 276         ok = CONNECTED;
 277         while( mode_ptr )
 278         {
 279                 if( ! skiponce ) mode_ptr++;
 280                 if( ! *mode_ptr )
 281                 {
 282                         /* Try next argument if there's any */
 283                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 284                         else mode_arg++;
 285                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 286                         else break;
 287                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 288                         else arg_arg = -1;
 289                 }
 290                 skiponce = FALSE;
 291
 292                 switch( *mode_ptr )
 293                 {
 294                         case '+':
 295                         case '-':
 296                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 297                                 {
 298                                         /* Action modifier ("+"/"-") must be changed ... */
 299                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 300                                         {
 301                                                 /* Adjust last action modifier in result */
 302                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 303                                         }
 304                                         else
 305                                         {
 306                                                 /* Append modifier character to result string */
 307                                                 x[0] = *mode_ptr; strcat( the_modes, x );
 308                                         }
 309                                         if( *mode_ptr == '+' ) set = TRUE;
 310                                         else set = FALSE;
 311                                 }
 312                                 continue;
 313                 }
 314
 315                 /* Are there arguments left? */
 316                 if( arg_arg >= Req->argc ) arg_arg = -1;
 317
 318                 x[0] = '\0';
 319                 client = NULL;
 320                 if( Client_Type( Client ) == CLIENT_SERVER )
 321                 {
 322                         /* MODE request was received from a server:
 323                          * therefore don't validate but trust it! */
 324                         x[0] = *mode_ptr;
 325                 }
 326                 else
 327                 {
 328                         /* Validate modes */
 329                         switch( *mode_ptr )
 330                         {
 331                                 /* Channel modes */
 332                                 case 'i':
 333                                         /* Invite-Only */
 334                                         if( modeok ) x[0] = 'i';
 335                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 336                                         break;
 337                                 case 'm':
 338                                         /* Moderated */
 339                                         if( modeok ) x[0] = 'm';
 340                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 341                                         break;
 342                                 case 'n':
 343                                         /* kein Schreiben in den Channel von aussen */
 344                                         if( modeok ) x[0] = 'n';
 345                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 346                                         break;
 347                                 case 't':
 348                                         /* Topic Lock */
 349                                         if( modeok ) x[0] = 't';
 350                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 351                                         break;
 352                                 case 'P':
 353                                         /* Persistent channel */
 354                                         if( modeok )
 355                                         {
 356                                                 if( set && ( ! Client_OperByMe( Client )))
 357                                                 {
 358                                                         /* Only IRC operators are allowed to set P mode */
 359                                                         ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 360                                                 }
 361                                                 else x[0] = 'P';
 362                                         }
 363                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 364                                         break;
 365
 366                                 /* Channel user modes */
 367                                 case 'o':
 368                                         /* Channel operator */
 369                                 case 'v':
 370                                         /* Voice */
 371                                         if( arg_arg > mode_arg )
 372                                         {
 373                                                 if( modeok )
 374                                                 {
 375                                                         client = Client_Search( Req->argv[arg_arg] );
 376                                                         if( client ) x[0] = *mode_ptr;
 377                                                         else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 378                                                 }
 379                                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 380                                                 arg_arg++;
 381                                         }
 382                                         else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 383                                         break;
 384
 385                                 /* Channel lists */
 386                                 case 'I':
 387                                         /* Invite lists */
 388                                         if( arg_arg > mode_arg )
 389                                         {
 390                                                 /* modify list */
 391                                                 if( modeok )
 392                                                 {
 393                                                         if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 394                                                         else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 395                                                 }
 396                                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 397                                                 arg_arg++;
 398                                         }
 399                                         else Lists_ShowInvites( Origin, Channel );
 400                                         break;
 401                                 case 'b':
 402                                         /* Ban lists */
 403                                         if( arg_arg > mode_arg )
 404                                         {
 405                                                 /* modify list */
 406                                                 if( modeok )
 407                                                 {
 408                                                         if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 409                                                         else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 410                                                 }
 411                                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 412                                                 arg_arg++;
 413                                         }
 414                                         else Lists_ShowBans( Origin, Channel );
 415                                         break;
 416
 417                                 default:
 418                                         Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 419                                         ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 420                                         x[0] = '\0';
 421                         }
 422                 }
 423                 if( ! ok ) break;
 424
 425                 /* Is there a valid mode change? */
 426                 if( ! x[0] ) continue;
 427
 428                 if( set )
 429                 {
 430                         /* Set mode */
 431                         if( client )
 432                         {
 433                                 /* Channel-User-Mode */
 434                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 435                                 {
 436                                         strcat( the_modes, x );
 437                                         strcat( the_args, Client_ID( client ));
 438                                         strcat( the_args, " " );
 439                                 }
 440                         }
 441                         else
 442                         {
 443                                 /* Channel-Mode */
 444                                 if( Channel_ModeAdd( Channel, x[0] )) strcat( the_modes, x );
 445                         }
 446                 }
 447                 else
 448                 {
 449                         /* Unset mode */
 450                         if( client )
 451                         {
 452                                 /* Channel-User-Mode */
 453                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 454                                 {
 455                                         strcat( the_modes, x );
 456                                         strcat( the_args, Client_ID( client ));
 457                                         strcat( the_args, " " );
 458                                 }
 459                         }
 460                         else
 461                         {
 462                                 /* Channel-Mode */
 463                                 if( Channel_ModeDel( Channel, x[0] )) strcat( the_modes, x );
 464                         }
 465                 }
 466         }
 467
 468         /* Are there changed modes? */
 469         if( the_modes[1] )
 470         {
 471                 /* Clean up argument string if there are none */
 472                 if( ! the_args[1] ) the_args[0] = '\0';
 473
 474                 if( Client_Type( Client ) == CLIENT_SERVER )
 475                 {
 476                         /* Forward mode changes to channel users and other servers */
 477                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 478                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 479                 }
 480                 else
 481                 {
 482                         /* Send reply to client and inform other servers and channel users */
 483                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 484                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 485                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 486                 }
 487                 Log( LOG_DEBUG, "User \"%s\" changes modes on %s: %s%s", Client_ID( Origin ), Channel_Name( Channel ), the_modes, the_args );
 488         }
 489
 490         return CONNECTED;
 491 } /* Channel_Mode */
 492
 493
 494 GLOBAL BOOLEAN
 495 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 496 {
 497         assert( Client != NULL );
 498         assert( Req != NULL );
 499
 500         /* Falsche Anzahl Parameter? */
 501         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 502
 503         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 504         {
 505                 /* AWAY setzen */
 506                 Client_SetAway( Client, Req->argv[0] );
 507                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 508                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 509         }
 510         else
 511         {
 512                 /* AWAY loeschen */
 513                 Client_SetAway( Client, NULL );
 514                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 515                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 516         }
 517 } /* IRC_AWAY */
 518
 519
 520 LOCAL BOOLEAN
 521 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 522 {
 523         CHAR *mask;
 524
 525         assert( Client != NULL );
 526         assert( Channel != NULL );
 527         assert( Pattern != NULL );
 528
 529         mask = Lists_MakeMask( Pattern );
 530
 531         if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
 532         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 533 } /* Add_Invite */
 534
 535
 536 LOCAL BOOLEAN
 537 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 538 {
 539         CHAR *mask;
 540
 541         assert( Client != NULL );
 542         assert( Channel != NULL );
 543         assert( Pattern != NULL );
 544
 545         mask = Lists_MakeMask( Pattern );
 546
 547         if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
 548         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 549 } /* Add_Ban */
 550
 551
 552 LOCAL BOOLEAN
 553 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 554 {
 555         CHAR *mask;
 556
 557         assert( Client != NULL );
 558         assert( Channel != NULL );
 559         assert( Pattern != NULL );
 560
 561         mask = Lists_MakeMask( Pattern );
 562         Lists_DelInvited( mask, Channel );
 563         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 564 } /* Del_Invite */
 565
 566
 567 LOCAL BOOLEAN
 568 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 569 {
 570         CHAR *mask;
 571
 572         assert( Client != NULL );
 573         assert( Channel != NULL );
 574         assert( Pattern != NULL );
 575
 576         mask = Lists_MakeMask( Pattern );
 577         Lists_DelBanned( mask, Channel );
 578         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 579 } /* Del_Ban */
 580
 581
 582 LOCAL BOOLEAN
 583 Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
 584 {
 585         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 586
 587         BOOLEAN ok;
 588
 589         if( Client_Type( Client ) == CLIENT_USER )
 590         {
 591                 /* Bestaetigung an Client */
 592                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 593         }
 594         else ok = TRUE;
 595
 596         /* an andere Server */
 597         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 598
 599         /* und lokale User im Channel */
 600         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 601
 602         return ok;
 603 } /* Send_ListChange */
 604
 605
 606 /* -eof- */