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 1.29 2003/01/08 23:00:12 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 )
 251         {
 252                 /* Member or not? -- That's the question! */
 253                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 254
 255                 /* The sender is a member: generate extended reply */
 256                 strlcpy( the_modes, Channel_Modes( Channel ), sizeof( the_modes ));
 257                 mode_ptr = the_modes;
 258                 strcpy( the_args, "" );
 259                 while( *mode_ptr )
 260                 {
 261                         switch( *mode_ptr )
 262                         {
 263                                 case 'l':
 264                                         snprintf( argadd, sizeof( argadd ), " %ld", Channel_MaxUsers( Channel ));
 265                                         strlcat( the_args, argadd, sizeof( the_args ));
 266                                         break;
 267                                 case 'k':
 268                                         strlcat( the_args, " ", sizeof( the_args ));
 269                                         strlcat( the_args, Channel_Key( Channel ), sizeof( the_args ));
 270                                         break;
 271                         }
 272                         mode_ptr++;
 273                 }
 274                 if( the_args[0] ) strlcat( the_modes, the_args, sizeof( the_modes ));
 275
 276                 return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), the_modes );
 277         }
 278
 279         /* Is the user allowed to change modes? */
 280         if( Client_Type( Client ) == CLIENT_USER )
 281         {
 282                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = TRUE;
 283                 else modeok = FALSE;
 284                 if( Conf_OperCanMode )
 285                 {
 286                         /* auch IRC-Operatoren duerfen MODE verwenden */
 287                         if( Client_OperByMe( Origin )) modeok = TRUE;
 288                 }
 289         }
 290         else modeok = TRUE;
 291
 292         mode_arg = 1;
 293         mode_ptr = Req->argv[mode_arg];
 294         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 295         else arg_arg = -1;
 296
 297         /* Initial state: set or unset modes? */
 298         skiponce = FALSE;
 299         if( *mode_ptr == '-' ) set = FALSE;
 300         else if( *mode_ptr == '+' ) set = TRUE;
 301         else set = skiponce = TRUE;
 302
 303         /* Prepare reply string */
 304         if( set ) strcpy( the_modes, "+" );
 305         else strcpy( the_modes, "-" );
 306         strcpy( the_args, " " );
 307
 308         x[1] = '\0';
 309         ok = CONNECTED;
 310         while( mode_ptr )
 311         {
 312                 if( ! skiponce ) mode_ptr++;
 313                 if( ! *mode_ptr )
 314                 {
 315                         /* Try next argument if there's any */
 316                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 317                         else mode_arg++;
 318                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 319                         else break;
 320                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 321                         else arg_arg = -1;
 322                 }
 323                 skiponce = FALSE;
 324
 325                 switch( *mode_ptr )
 326                 {
 327                         case '+':
 328                         case '-':
 329                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 330                                 {
 331                                         /* Action modifier ("+"/"-") must be changed ... */
 332                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 333                                         {
 334                                                 /* Adjust last action modifier in result */
 335                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 336                                         }
 337                                         else
 338                                         {
 339                                                 /* Append modifier character to result string */
 340                                                 x[0] = *mode_ptr;
 341                                                 strlcat( the_modes, x, sizeof( the_modes ));
 342                                         }
 343                                         if( *mode_ptr == '+' ) set = TRUE;
 344                                         else set = FALSE;
 345                                 }
 346                                 continue;
 347                 }
 348
 349                 /* Are there arguments left? */
 350                 if( arg_arg >= Req->argc ) arg_arg = -1;
 351
 352                 /* Validate modes */
 353                 x[0] = '\0';
 354                 argadd[0] = '\0';
 355                 client = NULL;
 356                 switch( *mode_ptr )
 357                 {
 358                         /* Channel modes */
 359                         case 'i':
 360                                 /* Invite-Only */
 361                                 if( modeok ) x[0] = 'i';
 362                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 363                                 break;
 364                         case 'm':
 365                                 /* Moderated */
 366                                 if( modeok ) x[0] = 'm';
 367                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 368                                 break;
 369                         case 'n':
 370                                 /* kein Schreiben in den Channel von aussen */
 371                                 if( modeok ) x[0] = 'n';
 372                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 373                                 break;
 374                         case 't':
 375                                 /* Topic Lock */
 376                                 if( modeok ) x[0] = 't';
 377                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 378                                 break;
 379                         case 'P':
 380                                 /* Persistent channel */
 381                                 if( modeok )
 382                                 {
 383                                         if( set && ( ! Client_OperByMe( Client )))
 384                                         {
 385                                                 /* Only IRC operators are allowed to set P mode */
 386                                                 ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 387                                         }
 388                                         else x[0] = 'P';
 389                                 }
 390                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 391                                 break;
 392
 393                         /* Channel user modes */
 394                         case 'o':
 395                                 /* Channel operator */
 396                         case 'v':
 397                                 /* Voice */
 398                                 if( arg_arg > mode_arg )
 399                                 {
 400                                         if( modeok )
 401                                         {
 402                                                 client = Client_Search( Req->argv[arg_arg] );
 403                                                 if( client ) x[0] = *mode_ptr;
 404                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 405                                         }
 406                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 407                                         Req->argv[arg_arg][0] = '\0';
 408                                         arg_arg++;
 409                                 }
 410                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 411                                 break;
 412                         case 'k':
 413                                 /* Channel key */
 414                                 if( ! set )
 415                                 {
 416                                         if( modeok ) x[0] = *mode_ptr;
 417                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 418                                         break;
 419                                 }
 420                                 if( arg_arg > mode_arg )
 421                                 {
 422                                         if( modeok )
 423                                         {
 424                                                 Channel_ModeDel( Channel, 'k' );
 425                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 426                                                 strlcpy( argadd, Channel_Key( Channel ), sizeof( argadd ));
 427                                                 x[0] = *mode_ptr;
 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                         case 'l':
 436                                 /* Member limit */
 437                                 if( ! set )
 438                                 {
 439                                         if( modeok ) x[0] = *mode_ptr;
 440                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 441                                         break;
 442                                 }
 443                                 if( arg_arg > mode_arg )
 444                                 {
 445                                         if( modeok )
 446                                         {
 447                                                 l = atol( Req->argv[arg_arg] );
 448                                                 if( l > 0 && l < 0xFFFF )
 449                                                 {
 450                                                         Channel_ModeDel( Channel, 'l' );
 451                                                         Channel_SetMaxUsers( Channel, l );
 452                                                         snprintf( argadd, sizeof( argadd ), "%ld", l );
 453                                                         x[0] = *mode_ptr;
 454                                                 }
 455                                         }
 456                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 457                                         Req->argv[arg_arg][0] = '\0';
 458                                         arg_arg++;
 459                                 }
 460                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 461                                 break;
 462
 463                         /* Channel lists */
 464                         case 'I':
 465                                 /* Invite lists */
 466                                 if( arg_arg > mode_arg )
 467                                 {
 468                                         /* modify list */
 469                                         if( modeok )
 470                                         {
 471                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 472                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 473                                         }
 474                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 475                                         Req->argv[arg_arg][0] = '\0';
 476                                         arg_arg++;
 477                                 }
 478                                 else Lists_ShowInvites( Origin, Channel );
 479                                 break;
 480                         case 'b':
 481                                 /* Ban lists */
 482                                 if( arg_arg > mode_arg )
 483                                 {
 484                                         /* modify list */
 485                                         if( modeok )
 486                                         {
 487                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 488                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 489                                         }
 490                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 491                                         Req->argv[arg_arg][0] = '\0';
 492                                         arg_arg++;
 493                                 }
 494                                 else Lists_ShowBans( Origin, Channel );
 495                                 break;
 496
 497                         default:
 498                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 499                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 500                                 x[0] = '\0';
 501                                 goto chan_exit;
 502                 }
 503                 if( ! ok ) break;
 504
 505                 /* Is there a valid mode change? */
 506                 if( ! x[0] ) continue;
 507
 508                 if( set )
 509                 {
 510                         /* Set mode */
 511                         if( client )
 512                         {
 513                                 /* Channel-User-Mode */
 514                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 515                                 {
 516                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 517                                         strlcat( the_args, " ", sizeof( the_args ));
 518                                         strlcat( the_modes, x, sizeof( the_modes ));
 519                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 520                                 }
 521                         }
 522                         else
 523                         {
 524                                 /* Channel-Mode */
 525                                 if( Channel_ModeAdd( Channel, x[0] ))
 526                                 {
 527                                         strlcat( the_modes, x, sizeof( the_modes ));
 528                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 529                                 }
 530                         }
 531                 }
 532                 else
 533                 {
 534                         /* Unset mode */
 535                         if( client )
 536                         {
 537                                 /* Channel-User-Mode */
 538                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 539                                 {
 540                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 541                                         strlcat( the_args, " ", sizeof( the_args ));
 542                                         strlcat( the_modes, x, sizeof( the_modes ));
 543                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 544                                 }
 545                         }
 546                         else
 547                         {
 548                                 /* Channel-Mode */
 549                                 if( Channel_ModeDel( Channel, x[0] ))
 550                                 {
 551                                         strlcat( the_modes, x, sizeof( the_modes ));
 552                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 553                                 }
 554                         }
 555                 }
 556
 557                 /* Are there additional arguments to add? */
 558                 if( argadd[0] )
 559                 {
 560                         if( the_args[strlen( the_args ) - 1] != ' ' ) strlcat( the_args, " ", sizeof( the_args ));
 561                         strlcat( the_args, argadd, sizeof( the_args ));
 562                 }
 563         }
 564 chan_exit:
 565
 566         /* Are there changed modes? */
 567         if( the_modes[1] )
 568         {
 569                 /* Clean up mode string */
 570                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 571
 572                 /* Clean up argument string if there are none */
 573                 if( ! the_args[1] ) the_args[0] = '\0';
 574
 575                 if( Client_Type( Client ) == CLIENT_SERVER )
 576                 {
 577                         /* Forward mode changes to channel users and other servers */
 578                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 579                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 580                 }
 581                 else
 582                 {
 583                         /* Send reply to client and inform other servers and channel users */
 584                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 585                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 586                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 587                 }
 588         }
 589
 590         return CONNECTED;
 591 } /* Channel_Mode */
 592
 593
 594 GLOBAL BOOLEAN
 595 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 596 {
 597         assert( Client != NULL );
 598         assert( Req != NULL );
 599
 600         /* Falsche Anzahl Parameter? */
 601         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 602
 603         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 604         {
 605                 /* AWAY setzen */
 606                 Client_SetAway( Client, Req->argv[0] );
 607                 Client_ModeAdd( Client, 'a' );
 608                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 609                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 610         }
 611         else
 612         {
 613                 /* AWAY loeschen */
 614                 Client_ModeDel( Client, 'a' );
 615                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 616                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 617         }
 618 } /* IRC_AWAY */
 619
 620
 621 LOCAL BOOLEAN
 622 Add_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
 632         if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
 633         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 634 } /* Add_Invite */
 635
 636
 637 LOCAL BOOLEAN
 638 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 639 {
 640         CHAR *mask;
 641
 642         assert( Client != NULL );
 643         assert( Channel != NULL );
 644         assert( Pattern != NULL );
 645
 646         mask = Lists_MakeMask( Pattern );
 647
 648         if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
 649         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 650 } /* Add_Ban */
 651
 652
 653 LOCAL BOOLEAN
 654 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 655 {
 656         CHAR *mask;
 657
 658         assert( Client != NULL );
 659         assert( Channel != NULL );
 660         assert( Pattern != NULL );
 661
 662         mask = Lists_MakeMask( Pattern );
 663         Lists_DelInvited( mask, Channel );
 664         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 665 } /* Del_Invite */
 666
 667
 668 LOCAL BOOLEAN
 669 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 670 {
 671         CHAR *mask;
 672
 673         assert( Client != NULL );
 674         assert( Channel != NULL );
 675         assert( Pattern != NULL );
 676
 677         mask = Lists_MakeMask( Pattern );
 678         Lists_DelBanned( mask, Channel );
 679         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 680 } /* Del_Ban */
 681
 682
 683 LOCAL BOOLEAN
 684 Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
 685 {
 686         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 687
 688         BOOLEAN ok;
 689
 690         if( Client_Type( Client ) == CLIENT_USER )
 691         {
 692                 /* Bestaetigung an Client */
 693                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 694         }
 695         else ok = TRUE;
 696
 697         /* an andere Server */
 698         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 699
 700         /* und lokale User im Channel */
 701         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 702
 703         return ok;
 704 } /* Send_ListChange */
 705
 706
 707 /* -eof- */