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 1.28 2003/01/02 17:57:09 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 )
 161                                 {
 162                                         x[0] = 'a';
 163                                         Client_SetAway( Client, DEFAULT_AWAY_MSG );
 164                                 }
 165                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 166                                 break;
 167                         case 'i':
 168                                 /* Invisible */
 169                                 x[0] = 'i';
 170                                 break;
 171                         case 'o':
 172                                 /* IRC operator (only unsetable!) */
 173                                 if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
 174                                 {
 175                                         Client_SetOperByMe( Target, FALSE );
 176                                         x[0] = 'o';
 177                                 }
 178                                 else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 179                                 break;
 180                         case 'r':
 181                                 /* Restricted (only setable) */
 182                                 if(( set ) || ( Client_Type( Client ) == CLIENT_SERVER )) x[0] = 'r';
 183                                 else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
 184                                 break;
 185                         case 's':
 186                                 /* Server messages */
 187                                 x[0] = 's';
 188                                 break;
 189                         default:
 190                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ));
 191                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 192                                 x[0] = '\0';
 193                                 goto client_exit;
 194                 }
 195                 if( ! ok ) break;
 196
 197                 /* Is there a valid mode change? */
 198                 if( ! x[0] ) continue;
 199
 200                 if( set )
 201                 {
 202                         /* Set mode */
 203                         if( Client_ModeAdd( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
 204
 205                 }
 206                 else
 207                 {
 208                         /* Unset mode */
 209                         if( Client_ModeDel( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
 210                 }
 211         }
 212 client_exit:
 213
 214         /* Are there changed modes? */
 215         if( the_modes[1] )
 216         {
 217                 /* Remoce needless action modifier characters */
 218                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 219
 220                 if( Client_Type( Client ) == CLIENT_SERVER )
 221                 {
 222                         /* Forward modes to other servers */
 223                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 224                 }
 225                 else
 226                 {
 227                         /* Send reply to client and inform other servers */
 228                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s", Client_ID( Target ), the_modes );
 229                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
 230                 }
 231                 Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( Target ), Client_Modes( Target ));
 232         }
 233
 234         return ok;
 235 } /* Client_Mode */
 236
 237
 238 LOCAL BOOLEAN
 239 Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 240 {
 241         /* Handle channel and channel-user modes */
 242
 243         CHAR the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
 244         BOOLEAN ok, set, modeok, skiponce;
 245         INT mode_arg, arg_arg;
 246         CLIENT *client;
 247         LONG l;
 248
 249         /* Mode request: let's answer it :-) */
 250         if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 251
 252         /* Is the user allowed to change modes? */
 253         if( Client_Type( Client ) == CLIENT_USER )
 254         {
 255                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = TRUE;
 256                 else modeok = FALSE;
 257                 if( Conf_OperCanMode )
 258                 {
 259                         /* auch IRC-Operatoren duerfen MODE verwenden */
 260                         if( Client_OperByMe( Origin )) modeok = TRUE;
 261                 }
 262         }
 263         else modeok = TRUE;
 264
 265         mode_arg = 1;
 266         mode_ptr = Req->argv[mode_arg];
 267         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 268         else arg_arg = -1;
 269
 270         /* Initial state: set or unset modes? */
 271         skiponce = FALSE;
 272         if( *mode_ptr == '-' ) set = FALSE;
 273         else if( *mode_ptr == '+' ) set = TRUE;
 274         else set = skiponce = TRUE;
 275
 276         /* Prepare reply string */
 277         if( set ) strcpy( the_modes, "+" );
 278         else strcpy( the_modes, "-" );
 279         strcpy( the_args, " " );
 280
 281         x[1] = '\0';
 282         ok = CONNECTED;
 283         while( mode_ptr )
 284         {
 285                 if( ! skiponce ) mode_ptr++;
 286                 if( ! *mode_ptr )
 287                 {
 288                         /* Try next argument if there's any */
 289                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 290                         else mode_arg++;
 291                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 292                         else break;
 293                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 294                         else arg_arg = -1;
 295                 }
 296                 skiponce = FALSE;
 297
 298                 switch( *mode_ptr )
 299                 {
 300                         case '+':
 301                         case '-':
 302                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 303                                 {
 304                                         /* Action modifier ("+"/"-") must be changed ... */
 305                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 306                                         {
 307                                                 /* Adjust last action modifier in result */
 308                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 309                                         }
 310                                         else
 311                                         {
 312                                                 /* Append modifier character to result string */
 313                                                 x[0] = *mode_ptr;
 314                                                 strlcat( the_modes, x, sizeof( the_modes ));
 315                                         }
 316                                         if( *mode_ptr == '+' ) set = TRUE;
 317                                         else set = FALSE;
 318                                 }
 319                                 continue;
 320                 }
 321
 322                 /* Are there arguments left? */
 323                 if( arg_arg >= Req->argc ) arg_arg = -1;
 324
 325                 /* Validate modes */
 326                 x[0] = '\0';
 327                 argadd[0] = '\0';
 328                 client = NULL;
 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                                         Req->argv[arg_arg][0] = '\0';
 381                                         arg_arg++;
 382                                 }
 383                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 384                                 break;
 385                         case 'k':
 386                                 /* Channel key */
 387                                 if( ! set )
 388                                 {
 389                                         if( modeok ) x[0] = *mode_ptr;
 390                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 391                                         break;
 392                                 }
 393                                 if( arg_arg > mode_arg )
 394                                 {
 395                                         if( modeok )
 396                                         {
 397                                                 Channel_ModeDel( Channel, 'k' );
 398                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 399                                                 strlcpy( argadd, Channel_Key( Channel ), sizeof( argadd ));
 400                                                 x[0] = *mode_ptr;
 401                                         }
 402                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 403                                         Req->argv[arg_arg][0] = '\0';
 404                                         arg_arg++;
 405                                 }
 406                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 407                                 break;
 408                         case 'l':
 409                                 /* Member limit */
 410                                 if( ! set )
 411                                 {
 412                                         if( modeok ) x[0] = *mode_ptr;
 413                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 414                                         break;
 415                                 }
 416                                 if( arg_arg > mode_arg )
 417                                 {
 418                                         if( modeok )
 419                                         {
 420                                                 l = atol( Req->argv[arg_arg] );
 421                                                 if( l > 0 && l < 0xFFFF )
 422                                                 {
 423                                                         Channel_ModeDel( Channel, 'l' );
 424                                                         Channel_SetMaxUsers( Channel, l );
 425                                                         snprintf( argadd, sizeof( argadd ), "%ld", l );
 426                                                         x[0] = *mode_ptr;
 427                                                 }
 428                                         }
 429                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 430                                         Req->argv[arg_arg][0] = '\0';
 431                                         arg_arg++;
 432                                 }
 433                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 434                                 break;
 435
 436                         /* Channel lists */
 437                         case 'I':
 438                                 /* Invite lists */
 439                                 if( arg_arg > mode_arg )
 440                                 {
 441                                         /* modify list */
 442                                         if( modeok )
 443                                         {
 444                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 445                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 446                                         }
 447                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 448                                         Req->argv[arg_arg][0] = '\0';
 449                                         arg_arg++;
 450                                 }
 451                                 else Lists_ShowInvites( Origin, Channel );
 452                                 break;
 453                         case 'b':
 454                                 /* Ban lists */
 455                                 if( arg_arg > mode_arg )
 456                                 {
 457                                         /* modify list */
 458                                         if( modeok )
 459                                         {
 460                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 461                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 462                                         }
 463                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 464                                         Req->argv[arg_arg][0] = '\0';
 465                                         arg_arg++;
 466                                 }
 467                                 else Lists_ShowBans( Origin, Channel );
 468                                 break;
 469
 470                         default:
 471                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 472                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 473                                 x[0] = '\0';
 474                                 goto chan_exit;
 475                 }
 476                 if( ! ok ) break;
 477
 478                 /* Is there a valid mode change? */
 479                 if( ! x[0] ) continue;
 480
 481                 if( set )
 482                 {
 483                         /* Set mode */
 484                         if( client )
 485                         {
 486                                 /* Channel-User-Mode */
 487                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 488                                 {
 489                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 490                                         strlcat( the_args, " ", sizeof( the_args ));
 491                                         strlcat( the_modes, x, sizeof( the_modes ));
 492                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 493                                 }
 494                         }
 495                         else
 496                         {
 497                                 /* Channel-Mode */
 498                                 if( Channel_ModeAdd( Channel, x[0] ))
 499                                 {
 500                                         strlcat( the_modes, x, sizeof( the_modes ));
 501                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 502                                 }
 503                         }
 504                 }
 505                 else
 506                 {
 507                         /* Unset mode */
 508                         if( client )
 509                         {
 510                                 /* Channel-User-Mode */
 511                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 512                                 {
 513                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 514                                         strlcat( the_args, " ", sizeof( the_args ));
 515                                         strlcat( the_modes, x, sizeof( the_modes ));
 516                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 517                                 }
 518                         }
 519                         else
 520                         {
 521                                 /* Channel-Mode */
 522                                 if( Channel_ModeDel( Channel, x[0] ))
 523                                 {
 524                                         strlcat( the_modes, x, sizeof( the_modes ));
 525                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 526                                 }
 527                         }
 528                 }
 529
 530                 /* Are there additional arguments to add? */
 531                 if( argadd[0] )
 532                 {
 533                         if( the_args[strlen( the_args ) - 1] != ' ' ) strlcat( the_args, " ", sizeof( the_args ));
 534                         strlcat( the_args, argadd, sizeof( the_args ));
 535                 }
 536         }
 537 chan_exit:
 538
 539         /* Are there changed modes? */
 540         if( the_modes[1] )
 541         {
 542                 /* Clean up mode string */
 543                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 544
 545                 /* Clean up argument string if there are none */
 546                 if( ! the_args[1] ) the_args[0] = '\0';
 547
 548                 if( Client_Type( Client ) == CLIENT_SERVER )
 549                 {
 550                         /* Forward mode changes to channel users and other servers */
 551                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 552                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 553                 }
 554                 else
 555                 {
 556                         /* Send reply to client and inform other servers and channel users */
 557                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 558                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 559                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 560                 }
 561         }
 562
 563         return CONNECTED;
 564 } /* Channel_Mode */
 565
 566
 567 GLOBAL BOOLEAN
 568 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 569 {
 570         assert( Client != NULL );
 571         assert( Req != NULL );
 572
 573         /* Falsche Anzahl Parameter? */
 574         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 575
 576         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 577         {
 578                 /* AWAY setzen */
 579                 Client_SetAway( Client, Req->argv[0] );
 580                 Client_ModeAdd( Client, 'a' );
 581                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 582                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 583         }
 584         else
 585         {
 586                 /* AWAY loeschen */
 587                 Client_ModeDel( Client, 'a' );
 588                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 589                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 590         }
 591 } /* IRC_AWAY */
 592
 593
 594 LOCAL BOOLEAN
 595 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 596 {
 597         CHAR *mask;
 598
 599         assert( Client != NULL );
 600         assert( Channel != NULL );
 601         assert( Pattern != NULL );
 602
 603         mask = Lists_MakeMask( Pattern );
 604
 605         if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
 606         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 607 } /* Add_Invite */
 608
 609
 610 LOCAL BOOLEAN
 611 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 612 {
 613         CHAR *mask;
 614
 615         assert( Client != NULL );
 616         assert( Channel != NULL );
 617         assert( Pattern != NULL );
 618
 619         mask = Lists_MakeMask( Pattern );
 620
 621         if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
 622         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 623 } /* Add_Ban */
 624
 625
 626 LOCAL BOOLEAN
 627 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 628 {
 629         CHAR *mask;
 630
 631         assert( Client != NULL );
 632         assert( Channel != NULL );
 633         assert( Pattern != NULL );
 634
 635         mask = Lists_MakeMask( Pattern );
 636         Lists_DelInvited( mask, Channel );
 637         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 638 } /* Del_Invite */
 639
 640
 641 LOCAL BOOLEAN
 642 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 643 {
 644         CHAR *mask;
 645
 646         assert( Client != NULL );
 647         assert( Channel != NULL );
 648         assert( Pattern != NULL );
 649
 650         mask = Lists_MakeMask( Pattern );
 651         Lists_DelBanned( mask, Channel );
 652         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 653 } /* Del_Ban */
 654
 655
 656 LOCAL BOOLEAN
 657 Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
 658 {
 659         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 660
 661         BOOLEAN ok;
 662
 663         if( Client_Type( Client ) == CLIENT_USER )
 664         {
 665                 /* Bestaetigung an Client */
 666                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 667         }
 668         else ok = TRUE;
 669
 670         /* an andere Server */
 671         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 672
 673         /* und lokale User im Channel */
 674         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 675
 676         return ok;
 677 } /* Send_ListChange */
 678
 679
 680 /* -eof- */