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 1.27 2002/12/26 17:14:48 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;
 146                                                 strlcat( the_modes, x, sizeof( the_modes ));
 147                                         }
 148                                         if( *mode_ptr == '+' ) set = TRUE;
 149                                         else set = FALSE;
 150                                 }
 151                                 continue;
 152                 }
 153
 154                 /* Validate modes */
 155                 x[0] = '\0';
 156                 switch( *mode_ptr )
 157                 {
 158                         case 'a':
 159                                 /* Away */
 160                                 if( Client_Type( Client ) == CLIENT_SERVER ) x[0] = 'a';
 161                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 162                                 break;
 163                         case 'i':
 164                                 /* Invisible */
 165                                 x[0] = 'i';
 166                                 break;
 167                         case 'o':
 168                                 /* IRC operator (only unsetable!) */
 169                                 if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
 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 ) || ( Client_Type( Client ) == CLIENT_SERVER )) 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                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 188                                 x[0] = '\0';
 189                                 goto client_exit;
 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] )) strlcat( the_modes, x, sizeof( the_modes ));
 200
 201                 }
 202                 else
 203                 {
 204                         /* Unset mode */
 205                         if( Client_ModeDel( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
 206                 }
 207         }
 208 client_exit:
 209
 210         /* Are there changed modes? */
 211         if( the_modes[1] )
 212         {
 213                 /* Remoce needless action modifier characters */
 214                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 215
 216                 if( Client_Type( Client ) == CLIENT_SERVER )
 217                 {
 218                         /* Forward modes to other servers */
 219                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 220                 }
 221                 else
 222                 {
 223                         /* Send reply to client and inform other servers */
 224                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s", Client_ID( Target ), the_modes );
 225                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 226                 }
 227                 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( Target ), Client_Modes( Target ));
 228         }
 229
 230         return ok;
 231 } /* Client_Mode */
 232
 233
 234 LOCAL BOOLEAN
 235 Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 236 {
 237         /* Handle channel and channel-user modes */
 238
 239         CHAR the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
 240         BOOLEAN ok, set, modeok, skiponce;
 241         INT mode_arg, arg_arg;
 242         CLIENT *client;
 243         LONG l;
 244
 245         /* Mode request: let's answer it :-) */
 246         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 247
 248         /* Is the user allowed to change modes? */
 249         if( Client_Type( Client ) == CLIENT_USER )
 250         {
 251                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = TRUE;
 252                 else modeok = FALSE;
 253                 if( Conf_OperCanMode )
 254                 {
 255                         /* auch IRC-Operatoren duerfen MODE verwenden */
 256                         if( Client_OperByMe( Origin )) modeok = TRUE;
 257                 }
 258         }
 259         else modeok = TRUE;
 260
 261         mode_arg = 1;
 262         mode_ptr = Req->argv[mode_arg];
 263         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 264         else arg_arg = -1;
 265
 266         /* Initial state: set or unset modes? */
 267         skiponce = FALSE;
 268         if( *mode_ptr == '-' ) set = FALSE;
 269         else if( *mode_ptr == '+' ) set = TRUE;
 270         else set = skiponce = TRUE;
 271
 272         /* Prepare reply string */
 273         if( set ) strcpy( the_modes, "+" );
 274         else strcpy( the_modes, "-" );
 275         strcpy( the_args, " " );
 276
 277         x[1] = '\0';
 278         ok = CONNECTED;
 279         while( mode_ptr )
 280         {
 281                 if( ! skiponce ) mode_ptr++;
 282                 if( ! *mode_ptr )
 283                 {
 284                         /* Try next argument if there's any */
 285                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 286                         else mode_arg++;
 287                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 288                         else break;
 289                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 290                         else arg_arg = -1;
 291                 }
 292                 skiponce = FALSE;
 293
 294                 switch( *mode_ptr )
 295                 {
 296                         case '+':
 297                         case '-':
 298                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 299                                 {
 300                                         /* Action modifier ("+"/"-") must be changed ... */
 301                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 302                                         {
 303                                                 /* Adjust last action modifier in result */
 304                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 305                                         }
 306                                         else
 307                                         {
 308                                                 /* Append modifier character to result string */
 309                                                 x[0] = *mode_ptr;
 310                                                 strlcat( the_modes, x, sizeof( the_modes ));
 311                                         }
 312                                         if( *mode_ptr == '+' ) set = TRUE;
 313                                         else set = FALSE;
 314                                 }
 315                                 continue;
 316                 }
 317
 318                 /* Are there arguments left? */
 319                 if( arg_arg >= Req->argc ) arg_arg = -1;
 320
 321                 /* Validate modes */
 322                 x[0] = '\0';
 323                 argadd[0] = '\0';
 324                 client = NULL;
 325                 switch( *mode_ptr )
 326                 {
 327                         /* Channel modes */
 328                         case 'i':
 329                                 /* Invite-Only */
 330                                 if( modeok ) x[0] = 'i';
 331                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 332                                 break;
 333                         case 'm':
 334                                 /* Moderated */
 335                                 if( modeok ) x[0] = 'm';
 336                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 337                                 break;
 338                         case 'n':
 339                                 /* kein Schreiben in den Channel von aussen */
 340                                 if( modeok ) x[0] = 'n';
 341                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 342                                 break;
 343                         case 't':
 344                                 /* Topic Lock */
 345                                 if( modeok ) x[0] = 't';
 346                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 347                                 break;
 348                         case 'P':
 349                                 /* Persistent channel */
 350                                 if( modeok )
 351                                 {
 352                                         if( set && ( ! Client_OperByMe( Client )))
 353                                         {
 354                                                 /* Only IRC operators are allowed to set P mode */
 355                                                 ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 356                                         }
 357                                         else x[0] = 'P';
 358                                 }
 359                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 360                                 break;
 361
 362                         /* Channel user modes */
 363                         case 'o':
 364                                 /* Channel operator */
 365                         case 'v':
 366                                 /* Voice */
 367                                 if( arg_arg > mode_arg )
 368                                 {
 369                                         if( modeok )
 370                                         {
 371                                                 client = Client_Search( Req->argv[arg_arg] );
 372                                                 if( client ) x[0] = *mode_ptr;
 373                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 374                                         }
 375                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 376                                         Req->argv[arg_arg][0] = '\0';
 377                                         arg_arg++;
 378                                 }
 379                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 380                                 break;
 381                         case 'k':
 382                                 /* Channel key */
 383                                 if( ! set )
 384                                 {
 385                                         if( modeok ) x[0] = *mode_ptr;
 386                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 387                                         break;
 388                                 }
 389                                 if( arg_arg > mode_arg )
 390                                 {
 391                                         if( modeok )
 392                                         {
 393                                                 Channel_ModeDel( Channel, 'k' );
 394                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 395                                                 strlcpy( argadd, Channel_Key( Channel ), sizeof( argadd ));
 396                                                 x[0] = *mode_ptr;
 397                                         }
 398                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 399                                         Req->argv[arg_arg][0] = '\0';
 400                                         arg_arg++;
 401                                 }
 402                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 403                                 break;
 404                         case 'l':
 405                                 /* Member limit */
 406                                 if( ! set )
 407                                 {
 408                                         if( modeok ) x[0] = *mode_ptr;
 409                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 410                                         break;
 411                                 }
 412                                 if( arg_arg > mode_arg )
 413                                 {
 414                                         if( modeok )
 415                                         {
 416                                                 l = atol( Req->argv[arg_arg] );
 417                                                 if( l > 0 && l < 0xFFFF )
 418                                                 {
 419                                                         Channel_ModeDel( Channel, 'l' );
 420                                                         Channel_SetMaxUsers( Channel, l );
 421                                                         snprintf( argadd, sizeof( argadd ), "%ld", l );
 422                                                         x[0] = *mode_ptr;
 423                                                 }
 424                                         }
 425                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 426                                         Req->argv[arg_arg][0] = '\0';
 427                                         arg_arg++;
 428                                 }
 429                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 430                                 break;
 431
 432                         /* Channel lists */
 433                         case 'I':
 434                                 /* Invite lists */
 435                                 if( arg_arg > mode_arg )
 436                                 {
 437                                         /* modify list */
 438                                         if( modeok )
 439                                         {
 440                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 441                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 442                                         }
 443                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 444                                         Req->argv[arg_arg][0] = '\0';
 445                                         arg_arg++;
 446                                 }
 447                                 else Lists_ShowInvites( Origin, Channel );
 448                                 break;
 449                         case 'b':
 450                                 /* Ban lists */
 451                                 if( arg_arg > mode_arg )
 452                                 {
 453                                         /* modify list */
 454                                         if( modeok )
 455                                         {
 456                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 457                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 458                                         }
 459                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 460                                         Req->argv[arg_arg][0] = '\0';
 461                                         arg_arg++;
 462                                 }
 463                                 else Lists_ShowBans( Origin, Channel );
 464                                 break;
 465
 466                         default:
 467                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 468                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 469                                 x[0] = '\0';
 470                                 goto chan_exit;
 471                 }
 472                 if( ! ok ) break;
 473
 474                 /* Is there a valid mode change? */
 475                 if( ! x[0] ) continue;
 476
 477                 if( set )
 478                 {
 479                         /* Set mode */
 480                         if( client )
 481                         {
 482                                 /* Channel-User-Mode */
 483                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 484                                 {
 485                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 486                                         strlcat( the_args, " ", sizeof( the_args ));
 487                                         strlcat( the_modes, x, sizeof( the_modes ));
 488                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 489                                 }
 490                         }
 491                         else
 492                         {
 493                                 /* Channel-Mode */
 494                                 if( Channel_ModeAdd( Channel, x[0] ))
 495                                 {
 496                                         strlcat( the_modes, x, sizeof( the_modes ));
 497                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 498                                 }
 499                         }
 500                 }
 501                 else
 502                 {
 503                         /* Unset mode */
 504                         if( client )
 505                         {
 506                                 /* Channel-User-Mode */
 507                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 508                                 {
 509                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 510                                         strlcat( the_args, " ", sizeof( the_args ));
 511                                         strlcat( the_modes, x, sizeof( the_modes ));
 512                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 513                                 }
 514                         }
 515                         else
 516                         {
 517                                 /* Channel-Mode */
 518                                 if( Channel_ModeDel( Channel, x[0] ))
 519                                 {
 520                                         strlcat( the_modes, x, sizeof( the_modes ));
 521                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 522                                 }
 523                         }
 524                 }
 525
 526                 /* Are there additional arguments to add? */
 527                 if( argadd[0] )
 528                 {
 529                         if( the_args[strlen( the_args ) - 1] != ' ' ) strlcat( the_args, " ", sizeof( the_args ));
 530                         strlcat( the_args, argadd, sizeof( the_args ));
 531                 }
 532         }
 533 chan_exit:
 534
 535         /* Are there changed modes? */
 536         if( the_modes[1] )
 537         {
 538                 /* Clean up mode string */
 539                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 540
 541                 /* Clean up argument string if there are none */
 542                 if( ! the_args[1] ) the_args[0] = '\0';
 543
 544                 if( Client_Type( Client ) == CLIENT_SERVER )
 545                 {
 546                         /* Forward mode changes to channel users and other servers */
 547                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 548                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 549                 }
 550                 else
 551                 {
 552                         /* Send reply to client and inform other servers and channel users */
 553                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 554                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 555                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 556                 }
 557         }
 558
 559         return CONNECTED;
 560 } /* Channel_Mode */
 561
 562
 563 GLOBAL BOOLEAN
 564 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 565 {
 566         assert( Client != NULL );
 567         assert( Req != NULL );
 568
 569         /* Falsche Anzahl Parameter? */
 570         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 571
 572         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 573         {
 574                 /* AWAY setzen */
 575                 Client_SetAway( Client, Req->argv[0] );
 576                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 577                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 578         }
 579         else
 580         {
 581                 /* AWAY loeschen */
 582                 Client_SetAway( Client, NULL );
 583                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 584                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 585         }
 586 } /* IRC_AWAY */
 587
 588
 589 LOCAL BOOLEAN
 590 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 591 {
 592         CHAR *mask;
 593
 594         assert( Client != NULL );
 595         assert( Channel != NULL );
 596         assert( Pattern != NULL );
 597
 598         mask = Lists_MakeMask( Pattern );
 599
 600         if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
 601         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 602 } /* Add_Invite */
 603
 604
 605 LOCAL BOOLEAN
 606 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 607 {
 608         CHAR *mask;
 609
 610         assert( Client != NULL );
 611         assert( Channel != NULL );
 612         assert( Pattern != NULL );
 613
 614         mask = Lists_MakeMask( Pattern );
 615
 616         if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
 617         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 618 } /* Add_Ban */
 619
 620
 621 LOCAL BOOLEAN
 622 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 623 {
 624         CHAR *mask;
 625
 626         assert( Client != NULL );
 627         assert( Channel != NULL );
 628         assert( Pattern != NULL );
 629
 630         mask = Lists_MakeMask( Pattern );
 631         Lists_DelInvited( mask, Channel );
 632         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 633 } /* Del_Invite */
 634
 635
 636 LOCAL BOOLEAN
 637 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 638 {
 639         CHAR *mask;
 640
 641         assert( Client != NULL );
 642         assert( Channel != NULL );
 643         assert( Pattern != NULL );
 644
 645         mask = Lists_MakeMask( Pattern );
 646         Lists_DelBanned( mask, Channel );
 647         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 648 } /* Del_Ban */
 649
 650
 651 LOCAL BOOLEAN
 652 Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
 653 {
 654         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 655
 656         BOOLEAN ok;
 657
 658         if( Client_Type( Client ) == CLIENT_USER )
 659         {
 660                 /* Bestaetigung an Client */
 661                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 662         }
 663         else ok = TRUE;
 664
 665         /* an andere Server */
 666         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 667
 668         /* und lokale User im Channel */
 669         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 670
 671         return ok;
 672 } /* Send_ListChange */
 673
 674
 675 /* -eof- */