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 1.24 2002/12/18 14:16:21 alex Exp $";
  18
  19 #include "imp.h"
  20 #include <assert.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "conn.h"
  26 #include "client.h"
  27 #include "channel.h"
  28 #include "defines.h"
  29 #include "irc-write.h"
  30 #include "lists.h"
  31 #include "log.h"
  32 #include "parse.h"
  33 #include "messages.h"
  34 #include "resolve.h"
  35 #include "conf.h"
  36
  37 #include "exp.h"
  38 #include "irc-mode.h"
  39
  40
  41 LOCAL BOOLEAN Client_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ));
  42 LOCAL BOOLEAN Channel_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel ));
  43
  44 LOCAL BOOLEAN Add_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  45 LOCAL BOOLEAN Add_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  46
  47 LOCAL BOOLEAN Del_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  48 LOCAL BOOLEAN Del_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
  49
  50 LOCAL BOOLEAN Send_ListChange PARAMS(( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask ));
  51
  52
  53 GLOBAL BOOLEAN
  54 IRC_MODE( CLIENT *Client, REQUEST *Req )
  55 {
  56         CLIENT *cl, *origin;
  57         CHANNEL *chan;
  58
  59         assert( Client != NULL );
  60         assert( Req != NULL );
  61
  62         /* No parameters? */
  63         if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
  64
  65         /* Origin for answers */
  66         if( Client_Type( Client ) == CLIENT_SERVER )
  67         {
  68                 origin = Client_Search( Req->prefix );
  69                 if( ! origin ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
  70         }
  71         else origin = Client;
  72
  73         /* Channel or user mode? */
  74         cl = chan = NULL;
  75         if( Client_IsValidNick( Req->argv[0] )) cl = Client_Search( Req->argv[0] );
  76         if( Channel_IsValidName( Req->argv[0] )) chan = Channel_Search( Req->argv[0] );
  77
  78         if( cl ) return Client_Mode( Client, Req, origin, cl );
  79         if( chan ) return Channel_Mode( Client, Req, origin, chan );
  80
  81         /* No target found! */
  82         return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
  83 } /* IRC_MODE */
  84
  85
  86 LOCAL BOOLEAN
  87 Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
  88 {
  89         /* Handle client mode requests */
  90
  91         CHAR the_modes[COMMAND_LEN], x[2], *mode_ptr;
  92         BOOLEAN ok, set;
  93         INT mode_arg;
  94
  95         /* Is the client allowed to request or change the modes? */
  96         if( Client_Type( Client ) == CLIENT_USER )
  97         {
  98                 /* Users are only allowed to manipulate their own modes! */
  99                 if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
 100         }
 101
 102         /* Mode request: let's answer it :-) */
 103         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
 104
 105         mode_arg = 1;
 106         mode_ptr = Req->argv[mode_arg];
 107
 108         /* Initial state: set or unset modes? */
 109         if( *mode_ptr == '+' ) set = TRUE;
 110         else if( *mode_ptr == '-' ) set = FALSE;
 111         else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
 112
 113         /* Prepare reply string */
 114         if( set ) strcpy( the_modes, "+" );
 115         else strcpy( the_modes, "-" );
 116
 117         x[1] = '\0';
 118         ok = CONNECTED;
 119         while( mode_ptr )
 120         {
 121                 mode_ptr++;
 122                 if( ! *mode_ptr )
 123                 {
 124                         /* Try next argument if there's any */
 125                         mode_arg++;
 126                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 127                         else break;
 128                 }
 129
 130                 switch( *mode_ptr )
 131                 {
 132                         case '+':
 133                         case '-':
 134                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 135                                 {
 136                                         /* Action modifier ("+"/"-") must be changed ... */
 137                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 138                                         {
 139                                                 /* Adjust last action modifier in result */
 140                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 141                                         }
 142                                         else
 143                                         {
 144                                                 /* Append modifier character to result string */
 145                                                 x[0] = *mode_ptr; strcat( the_modes, x );
 146                                         }
 147                                         if( *mode_ptr == '+' ) set = TRUE;
 148                                         else set = FALSE;
 149                                 }
 150                                 continue;
 151                 }
 152
 153                 /* Validate modes */
 154                 x[0] = '\0';
 155                 switch( *mode_ptr )
 156                 {
 157                         case 'a':
 158                                 /* Away */
 159                                 if( Client_Type( Client ) == CLIENT_SERVER ) x[0] = 'a';
 160                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 161                                 break;
 162                         case 'i':
 163                                 /* Invisible */
 164                                 x[0] = 'i';
 165                                 break;
 166                         case 'o':
 167                                 /* IRC operator (only unsetable!) */
 168                                 if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
 169                                 {
 170                                         Client_SetOperByMe( Target, FALSE );
 171                                         x[0] = 'o';
 172                                 }
 173                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 174                                 break;
 175                         case 'r':
 176                                 /* Restricted (only setable) */
 177                                 if(( set ) || ( Client_Type( Client ) == CLIENT_SERVER )) x[0] = 'r';
 178                                 else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
 179                                 break;
 180                         case 's':
 181                                 /* Server messages */
 182                                 x[0] = 's';
 183                                 break;
 184                         default:
 185                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ));
 186                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 187                                 x[0] = '\0';
 188                                 goto client_exit;
 189                 }
 190                 if( ! ok ) break;
 191
 192                 /* Is there a valid mode change? */
 193                 if( ! x[0] ) continue;
 194
 195                 if( set )
 196                 {
 197                         /* Set mode */
 198                         if( Client_ModeAdd( Target, x[0] )) strcat( the_modes, x );
 199
 200                 }
 201                 else
 202                 {
 203                         /* Unset mode */
 204                         if( Client_ModeDel( Target, x[0] )) strcat( the_modes, x );
 205                 }
 206         }
 207 client_exit:
 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], argadd[CLIENT_PASS_LEN], *mode_ptr;
 239         BOOLEAN ok, set, modeok, skiponce;
 240         INT mode_arg, arg_arg;
 241         CLIENT *client;
 242         LONG l;
 243
 244         /* Mode request: let's answer it :-) */
 245         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 246
 247         /* Is the user allowed to change modes? */
 248         if( Client_Type( Client ) == CLIENT_USER )
 249         {
 250                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = TRUE;
 251                 else modeok = FALSE;
 252                 if( Conf_OperCanMode )
 253                 {
 254                         /* auch IRC-Operatoren duerfen MODE verwenden */
 255                         if( Client_OperByMe( Origin )) modeok = TRUE;
 256                 }
 257         }
 258         else modeok = TRUE;
 259
 260         mode_arg = 1;
 261         mode_ptr = Req->argv[mode_arg];
 262         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 263         else arg_arg = -1;
 264
 265         /* Initial state: set or unset modes? */
 266         skiponce = FALSE;
 267         if( *mode_ptr == '-' ) set = FALSE;
 268         else if( *mode_ptr == '+' ) set = TRUE;
 269         else set = skiponce = TRUE;
 270
 271         /* Prepare reply string */
 272         if( set ) strcpy( the_modes, "+" );
 273         else strcpy( the_modes, "-" );
 274         strcpy( the_args, " " );
 275
 276         x[1] = '\0';
 277         ok = CONNECTED;
 278         while( mode_ptr )
 279         {
 280                 if( ! skiponce ) mode_ptr++;
 281                 if( ! *mode_ptr )
 282                 {
 283                         /* Try next argument if there's any */
 284                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 285                         else mode_arg++;
 286                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 287                         else break;
 288                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 289                         else arg_arg = -1;
 290                 }
 291                 skiponce = FALSE;
 292
 293                 switch( *mode_ptr )
 294                 {
 295                         case '+':
 296                         case '-':
 297                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 298                                 {
 299                                         /* Action modifier ("+"/"-") must be changed ... */
 300                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 301                                         {
 302                                                 /* Adjust last action modifier in result */
 303                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 304                                         }
 305                                         else
 306                                         {
 307                                                 /* Append modifier character to result string */
 308                                                 x[0] = *mode_ptr; strcat( the_modes, x );
 309                                         }
 310                                         if( *mode_ptr == '+' ) set = TRUE;
 311                                         else set = FALSE;
 312                                 }
 313                                 continue;
 314                 }
 315
 316                 /* Are there arguments left? */
 317                 if( arg_arg >= Req->argc ) arg_arg = -1;
 318
 319                 /* Validate modes */
 320                 x[0] = '\0';
 321                 argadd[0] = '\0';
 322                 client = NULL;
 323                 switch( *mode_ptr )
 324                 {
 325                         /* Channel modes */
 326                         case 'i':
 327                                 /* Invite-Only */
 328                                 if( modeok ) x[0] = 'i';
 329                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 330                                 break;
 331                         case 'm':
 332                                 /* Moderated */
 333                                 if( modeok ) x[0] = 'm';
 334                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 335                                 break;
 336                         case 'n':
 337                                 /* kein Schreiben in den Channel von aussen */
 338                                 if( modeok ) x[0] = 'n';
 339                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 340                                 break;
 341                         case 't':
 342                                 /* Topic Lock */
 343                                 if( modeok ) x[0] = 't';
 344                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 345                                 break;
 346                         case 'P':
 347                                 /* Persistent channel */
 348                                 if( modeok )
 349                                 {
 350                                         if( set && ( ! Client_OperByMe( Client )))
 351                                         {
 352                                                 /* Only IRC operators are allowed to set P mode */
 353                                                 ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 354                                         }
 355                                         else x[0] = 'P';
 356                                 }
 357                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 358                                 break;
 359
 360                         /* Channel user modes */
 361                         case 'o':
 362                                 /* Channel operator */
 363                         case 'v':
 364                                 /* Voice */
 365                                 if( arg_arg > mode_arg )
 366                                 {
 367                                         if( modeok )
 368                                         {
 369                                                 client = Client_Search( Req->argv[arg_arg] );
 370                                                 if( client ) x[0] = *mode_ptr;
 371                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 372                                         }
 373                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 374                                         Req->argv[arg_arg][0] = '\0';
 375                                         arg_arg++;
 376                                 }
 377                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 378                                 break;
 379                         case 'k':
 380                                 /* Channel key */
 381                                 if( ! set )
 382                                 {
 383                                         if( modeok ) x[0] = *mode_ptr;
 384                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 385                                         break;
 386                                 }
 387                                 if( arg_arg > mode_arg )
 388                                 {
 389                                         if( modeok )
 390                                         {
 391                                                 Channel_ModeDel( Channel, 'k' );
 392                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 393                                                 strcpy( argadd, Channel_Key( Channel ));
 394                                                 x[0] = *mode_ptr;
 395                                         }
 396                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 397                                         Req->argv[arg_arg][0] = '\0';
 398                                         arg_arg++;
 399                                 }
 400                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 401                                 break;
 402                         case 'l':
 403                                 /* Member limit */
 404                                 if( ! set )
 405                                 {
 406                                         if( modeok ) x[0] = *mode_ptr;
 407                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 408                                         break;
 409                                 }
 410                                 if( arg_arg > mode_arg )
 411                                 {
 412                                         if( modeok )
 413                                         {
 414                                                 l = atol( Req->argv[arg_arg] );
 415                                                 if( l > 0 && l < 0xFFFF )
 416                                                 {
 417                                                         Channel_ModeDel( Channel, 'l' );
 418                                                         Channel_SetMaxUsers( Channel, l );
 419                                                         sprintf( argadd, "%ld", l );
 420                                                         x[0] = *mode_ptr;
 421                                                 }
 422                                         }
 423                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 424                                         Req->argv[arg_arg][0] = '\0';
 425                                         arg_arg++;
 426                                 }
 427                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 428                                 break;
 429
 430                         /* Channel lists */
 431                         case 'I':
 432                                 /* Invite lists */
 433                                 if( arg_arg > mode_arg )
 434                                 {
 435                                         /* modify list */
 436                                         if( modeok )
 437                                         {
 438                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 439                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 440                                         }
 441                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 442                                         Req->argv[arg_arg][0] = '\0';
 443                                         arg_arg++;
 444                                 }
 445                                 else Lists_ShowInvites( Origin, Channel );
 446                                 break;
 447                         case 'b':
 448                                 /* Ban lists */
 449                                 if( arg_arg > mode_arg )
 450                                 {
 451                                         /* modify list */
 452                                         if( modeok )
 453                                         {
 454                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 455                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 456                                         }
 457                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 458                                         Req->argv[arg_arg][0] = '\0';
 459                                         arg_arg++;
 460                                 }
 461                                 else Lists_ShowBans( Origin, Channel );
 462                                 break;
 463
 464                         default:
 465                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 466                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 467                                 x[0] = '\0';
 468                                 goto chan_exit;
 469                 }
 470                 if( ! ok ) break;
 471
 472                 /* Is there a valid mode change? */
 473                 if( ! x[0] ) continue;
 474
 475                 if( set )
 476                 {
 477                         /* Set mode */
 478                         if( client )
 479                         {
 480                                 /* Channel-User-Mode */
 481                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 482                                 {
 483                                         strcat( the_args, Client_ID( client ));
 484                                         strcat( the_args, " " ); strcat( the_modes, x );
 485                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 486                                 }
 487                         }
 488                         else
 489                         {
 490                                 /* Channel-Mode */
 491                                 if( Channel_ModeAdd( Channel, x[0] ))
 492                                 {
 493                                         strcat( the_modes, x );
 494                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 495                                 }
 496                         }
 497                 }
 498                 else
 499                 {
 500                         /* Unset mode */
 501                         if( client )
 502                         {
 503                                 /* Channel-User-Mode */
 504                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 505                                 {
 506                                         strcat( the_args, Client_ID( client ));
 507                                         strcat( the_args, " " ); strcat( the_modes, x );
 508                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 509                                 }
 510                         }
 511                         else
 512                         {
 513                                 /* Channel-Mode */
 514                                 if( Channel_ModeDel( Channel, x[0] ))
 515                                 {
 516                                         strcat( the_modes, x );
 517                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 518                                 }
 519                         }
 520                 }
 521
 522                 /* Are there additional arguments to add? */
 523                 if( argadd[0] )
 524                 {
 525                         if( the_args[strlen( the_args ) - 1] != ' ' ) strcat( the_args, " " );
 526                         strcat( the_args, argadd );
 527                 }
 528         }
 529 chan_exit:
 530
 531         /* Are there changed modes? */
 532         if( the_modes[1] )
 533         {
 534                 /* Clean up mode string */
 535                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 536
 537                 /* Clean up argument string if there are none */
 538                 if( ! the_args[1] ) the_args[0] = '\0';
 539
 540                 if( Client_Type( Client ) == CLIENT_SERVER )
 541                 {
 542                         /* Forward mode changes to channel users and other servers */
 543                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 544                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 545                 }
 546                 else
 547                 {
 548                         /* Send reply to client and inform other servers and channel users */
 549                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 550                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 551                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 552                 }
 553         }
 554
 555         return CONNECTED;
 556 } /* Channel_Mode */
 557
 558
 559 GLOBAL BOOLEAN
 560 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 561 {
 562         assert( Client != NULL );
 563         assert( Req != NULL );
 564
 565         /* Falsche Anzahl Parameter? */
 566         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 567
 568         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 569         {
 570                 /* AWAY setzen */
 571                 Client_SetAway( Client, Req->argv[0] );
 572                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 573                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 574         }
 575         else
 576         {
 577                 /* AWAY loeschen */
 578                 Client_SetAway( Client, NULL );
 579                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 580                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 581         }
 582 } /* IRC_AWAY */
 583
 584
 585 LOCAL BOOLEAN
 586 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 587 {
 588         CHAR *mask;
 589
 590         assert( Client != NULL );
 591         assert( Channel != NULL );
 592         assert( Pattern != NULL );
 593
 594         mask = Lists_MakeMask( Pattern );
 595
 596         if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
 597         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 598 } /* Add_Invite */
 599
 600
 601 LOCAL BOOLEAN
 602 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 603 {
 604         CHAR *mask;
 605
 606         assert( Client != NULL );
 607         assert( Channel != NULL );
 608         assert( Pattern != NULL );
 609
 610         mask = Lists_MakeMask( Pattern );
 611
 612         if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
 613         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 614 } /* Add_Ban */
 615
 616
 617 LOCAL BOOLEAN
 618 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 619 {
 620         CHAR *mask;
 621
 622         assert( Client != NULL );
 623         assert( Channel != NULL );
 624         assert( Pattern != NULL );
 625
 626         mask = Lists_MakeMask( Pattern );
 627         Lists_DelInvited( mask, Channel );
 628         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 629 } /* Del_Invite */
 630
 631
 632 LOCAL BOOLEAN
 633 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 634 {
 635         CHAR *mask;
 636
 637         assert( Client != NULL );
 638         assert( Channel != NULL );
 639         assert( Pattern != NULL );
 640
 641         mask = Lists_MakeMask( Pattern );
 642         Lists_DelBanned( mask, Channel );
 643         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 644 } /* Del_Ban */
 645
 646
 647 LOCAL BOOLEAN
 648 Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
 649 {
 650         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 651
 652         BOOLEAN ok;
 653
 654         if( Client_Type( Client ) == CLIENT_USER )
 655         {
 656                 /* Bestaetigung an Client */
 657                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 658         }
 659         else ok = TRUE;
 660
 661         /* an andere Server */
 662         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 663
 664         /* und lokale User im Channel */
 665         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 666
 667         return ok;
 668 } /* Send_ListChange */
 669
 670
 671 /* -eof- */