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 1.32 2003/11/05 23:24:48 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 )
 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         IRC_SetPenalty( Client, 1 );
 235         return ok;
 236 } /* Client_Mode */
 237
 238
 239 LOCAL BOOLEAN
 240 Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 241 {
 242         /* Handle channel and channel-user modes */
 243
 244         CHAR the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
 245         BOOLEAN ok, set, modeok, skiponce;
 246         INT mode_arg, arg_arg;
 247         CLIENT *client;
 248         LONG l;
 249
 250         /* Mode request: let's answer it :-) */
 251         if( Req->argc == 1 )
 252         {
 253                 /* Member or not? -- That's the question! */
 254                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), Channel_Modes( Channel ));
 255
 256                 /* The sender is a member: generate extended reply */
 257                 strlcpy( the_modes, Channel_Modes( Channel ), sizeof( the_modes ));
 258                 mode_ptr = the_modes;
 259                 strcpy( the_args, "" );
 260                 while( *mode_ptr )
 261                 {
 262                         switch( *mode_ptr )
 263                         {
 264                                 case 'l':
 265                                         snprintf( argadd, sizeof( argadd ), " %ld", Channel_MaxUsers( Channel ));
 266                                         strlcat( the_args, argadd, sizeof( the_args ));
 267                                         break;
 268                                 case 'k':
 269                                         strlcat( the_args, " ", sizeof( the_args ));
 270                                         strlcat( the_args, Channel_Key( Channel ), sizeof( the_args ));
 271                                         break;
 272                         }
 273                         mode_ptr++;
 274                 }
 275                 if( the_args[0] ) strlcat( the_modes, the_args, sizeof( the_modes ));
 276
 277                 return IRC_WriteStrClient( Origin, RPL_CHANNELMODEIS_MSG, Client_ID( Origin ), Channel_Name( Channel ), the_modes );
 278         }
 279
 280         /* Is the user allowed to change modes? */
 281         if( Client_Type( Client ) == CLIENT_USER )
 282         {
 283                 /* Is the originating user on that channel? */
 284                 if( ! Channel_IsMemberOf( Channel, Origin )) return IRC_WriteStrClient( Origin, ERR_NOTONCHANNEL_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 285
 286                 /* Is he channel operator? */
 287                 if( strchr( Channel_UserModes( Channel, Origin ), 'o' )) modeok = TRUE;
 288                 else modeok = FALSE;
 289                 if( Conf_OperCanMode )
 290                 {
 291                         /* auch IRC-Operatoren duerfen MODE verwenden */
 292                         if( Client_OperByMe( Origin )) modeok = TRUE;
 293                 }
 294         }
 295         else modeok = TRUE;
 296
 297         mode_arg = 1;
 298         mode_ptr = Req->argv[mode_arg];
 299         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 300         else arg_arg = -1;
 301
 302         /* Initial state: set or unset modes? */
 303         skiponce = FALSE;
 304         if( *mode_ptr == '-' ) set = FALSE;
 305         else if( *mode_ptr == '+' ) set = TRUE;
 306         else set = skiponce = TRUE;
 307
 308         /* Prepare reply string */
 309         if( set ) strcpy( the_modes, "+" );
 310         else strcpy( the_modes, "-" );
 311         strcpy( the_args, " " );
 312
 313         x[1] = '\0';
 314         ok = CONNECTED;
 315         while( mode_ptr )
 316         {
 317                 if( ! skiponce ) mode_ptr++;
 318                 if( ! *mode_ptr )
 319                 {
 320                         /* Try next argument if there's any */
 321                         if( arg_arg > mode_arg ) mode_arg = arg_arg;
 322                         else mode_arg++;
 323                         if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
 324                         else break;
 325                         if( Req->argc > mode_arg + 1 ) arg_arg = mode_arg + 1;
 326                         else arg_arg = -1;
 327                 }
 328                 skiponce = FALSE;
 329
 330                 switch( *mode_ptr )
 331                 {
 332                         case '+':
 333                         case '-':
 334                                 if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
 335                                 {
 336                                         /* Action modifier ("+"/"-") must be changed ... */
 337                                         if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' ))
 338                                         {
 339                                                 /* Adjust last action modifier in result */
 340                                                 the_modes[strlen( the_modes ) - 1] = *mode_ptr;
 341                                         }
 342                                         else
 343                                         {
 344                                                 /* Append modifier character to result string */
 345                                                 x[0] = *mode_ptr;
 346                                                 strlcat( the_modes, x, sizeof( the_modes ));
 347                                         }
 348                                         if( *mode_ptr == '+' ) set = TRUE;
 349                                         else set = FALSE;
 350                                 }
 351                                 continue;
 352                 }
 353
 354                 /* Are there arguments left? */
 355                 if( arg_arg >= Req->argc ) arg_arg = -1;
 356
 357                 /* Validate modes */
 358                 x[0] = '\0';
 359                 argadd[0] = '\0';
 360                 client = NULL;
 361                 switch( *mode_ptr )
 362                 {
 363                         /* Channel modes */
 364                         case 'i':
 365                                 /* Invite-Only */
 366                                 if( modeok ) x[0] = 'i';
 367                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 368                                 break;
 369                         case 'm':
 370                                 /* Moderated */
 371                                 if( modeok ) x[0] = 'm';
 372                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 373                                 break;
 374                         case 'n':
 375                                 /* kein Schreiben in den Channel von aussen */
 376                                 if( modeok ) x[0] = 'n';
 377                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 378                                 break;
 379                         case 't':
 380                                 /* Topic Lock */
 381                                 if( modeok ) x[0] = 't';
 382                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 383                                 break;
 384                         case 'P':
 385                                 /* Persistent channel */
 386                                 if( modeok )
 387                                 {
 388                                         if( set && ( ! Client_OperByMe( Client )))
 389                                         {
 390                                                 /* Only IRC operators are allowed to set P mode */
 391                                                 ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
 392                                         }
 393                                         else x[0] = 'P';
 394                                 }
 395                                 else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 396                                 break;
 397
 398                         /* Channel user modes */
 399                         case 'o':
 400                                 /* Channel operator */
 401                         case 'v':
 402                                 /* Voice */
 403                                 if( arg_arg > mode_arg )
 404                                 {
 405                                         if( modeok )
 406                                         {
 407                                                 client = Client_Search( Req->argv[arg_arg] );
 408                                                 if( client ) x[0] = *mode_ptr;
 409                                                 else ok = IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[arg_arg] );
 410                                         }
 411                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 412                                         Req->argv[arg_arg][0] = '\0';
 413                                         arg_arg++;
 414                                 }
 415                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 416                                 break;
 417                         case 'k':
 418                                 /* Channel key */
 419                                 if( ! set )
 420                                 {
 421                                         if( modeok ) x[0] = *mode_ptr;
 422                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 423                                         break;
 424                                 }
 425                                 if( arg_arg > mode_arg )
 426                                 {
 427                                         if( modeok )
 428                                         {
 429                                                 Channel_ModeDel( Channel, 'k' );
 430                                                 Channel_SetKey( Channel, Req->argv[arg_arg] );
 431                                                 strlcpy( argadd, Channel_Key( Channel ), sizeof( argadd ));
 432                                                 x[0] = *mode_ptr;
 433                                         }
 434                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 435                                         Req->argv[arg_arg][0] = '\0';
 436                                         arg_arg++;
 437                                 }
 438                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 439                                 break;
 440                         case 'l':
 441                                 /* Member limit */
 442                                 if( ! set )
 443                                 {
 444                                         if( modeok ) x[0] = *mode_ptr;
 445                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 446                                         break;
 447                                 }
 448                                 if( arg_arg > mode_arg )
 449                                 {
 450                                         if( modeok )
 451                                         {
 452                                                 l = atol( Req->argv[arg_arg] );
 453                                                 if( l > 0 && l < 0xFFFF )
 454                                                 {
 455                                                         Channel_ModeDel( Channel, 'l' );
 456                                                         Channel_SetMaxUsers( Channel, l );
 457                                                         snprintf( argadd, sizeof( argadd ), "%ld", l );
 458                                                         x[0] = *mode_ptr;
 459                                                 }
 460                                         }
 461                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 462                                         Req->argv[arg_arg][0] = '\0';
 463                                         arg_arg++;
 464                                 }
 465                                 else ok = IRC_WriteStrClient( Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID( Origin ), Req->command );
 466                                 break;
 467
 468                         /* Channel lists */
 469                         case 'I':
 470                                 /* Invite lists */
 471                                 if( arg_arg > mode_arg )
 472                                 {
 473                                         /* modify list */
 474                                         if( modeok )
 475                                         {
 476                                                 if( set ) Add_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 477                                                 else Del_Invite( Origin, Client, Channel, Req->argv[arg_arg] );
 478                                         }
 479                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 480                                         Req->argv[arg_arg][0] = '\0';
 481                                         arg_arg++;
 482                                 }
 483                                 else Lists_ShowInvites( Origin, Channel );
 484                                 break;
 485                         case 'b':
 486                                 /* Ban lists */
 487                                 if( arg_arg > mode_arg )
 488                                 {
 489                                         /* modify list */
 490                                         if( modeok )
 491                                         {
 492                                                 if( set ) Add_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 493                                                 else Del_Ban( Origin, Client, Channel, Req->argv[arg_arg] );
 494                                         }
 495                                         else ok = IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Channel_Name( Channel ));
 496                                         Req->argv[arg_arg][0] = '\0';
 497                                         arg_arg++;
 498                                 }
 499                                 else Lists_ShowBans( Origin, Channel );
 500                                 break;
 501
 502                         default:
 503                                 Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ), Channel_Name( Channel ));
 504                                 if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
 505                                 x[0] = '\0';
 506                                 goto chan_exit;
 507                 }
 508                 if( ! ok ) break;
 509
 510                 /* Is there a valid mode change? */
 511                 if( ! x[0] ) continue;
 512
 513                 /* Validate target client */
 514                 if( client && ( ! Channel_IsMemberOf( Channel, client )))
 515                 {
 516                         if( ! IRC_WriteStrClient( Origin, ERR_USERNOTINCHANNEL_MSG, Client_ID( Origin ), Client_ID( client ), Channel_Name( Channel ))) break;
 517                         continue;
 518                 }
 519
 520                 if( set )
 521                 {
 522                         /* Set mode */
 523                         if( client )
 524                         {
 525                                 /* Channel-User-Mode */
 526                                 if( Channel_UserModeAdd( Channel, client, x[0] ))
 527                                 {
 528                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 529                                         strlcat( the_args, " ", sizeof( the_args ));
 530                                         strlcat( the_modes, x, sizeof( the_modes ));
 531                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 532                                 }
 533                         }
 534                         else
 535                         {
 536                                 /* Channel-Mode */
 537                                 if( Channel_ModeAdd( Channel, x[0] ))
 538                                 {
 539                                         strlcat( the_modes, x, sizeof( the_modes ));
 540                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 541                                 }
 542                         }
 543                 }
 544                 else
 545                 {
 546                         /* Unset mode */
 547                         if( client )
 548                         {
 549                                 /* Channel-User-Mode */
 550                                 if( Channel_UserModeDel( Channel, client, x[0] ))
 551                                 {
 552                                         strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 553                                         strlcat( the_args, " ", sizeof( the_args ));
 554                                         strlcat( the_modes, x, sizeof( the_modes ));
 555                                         Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 556                                 }
 557                         }
 558                         else
 559                         {
 560                                 /* Channel-Mode */
 561                                 if( Channel_ModeDel( Channel, x[0] ))
 562                                 {
 563                                         strlcat( the_modes, x, sizeof( the_modes ));
 564                                         Log( LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name( Channel ), Channel_Modes( Channel ));
 565                                 }
 566                         }
 567                 }
 568
 569                 /* Are there additional arguments to add? */
 570                 if( argadd[0] )
 571                 {
 572                         if( the_args[strlen( the_args ) - 1] != ' ' ) strlcat( the_args, " ", sizeof( the_args ));
 573                         strlcat( the_args, argadd, sizeof( the_args ));
 574                 }
 575         }
 576 chan_exit:
 577
 578         /* Are there changed modes? */
 579         if( the_modes[1] )
 580         {
 581                 /* Clean up mode string */
 582                 if(( the_modes[strlen( the_modes ) - 1] == '+' ) || ( the_modes[strlen( the_modes ) - 1] == '-' )) the_modes[strlen( the_modes ) - 1] = '\0';
 583
 584                 /* Clean up argument string if there are none */
 585                 if( ! the_args[1] ) the_args[0] = '\0';
 586
 587                 if( Client_Type( Client ) == CLIENT_SERVER )
 588                 {
 589                         /* Forward mode changes to channel users and other servers */
 590                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 591                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 592                 }
 593                 else
 594                 {
 595                         /* Send reply to client and inform other servers and channel users */
 596                         ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 597                         IRC_WriteStrServersPrefix( Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 598                         IRC_WriteStrChannelPrefix( Client, Channel, Origin, FALSE, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args );
 599                 }
 600         }
 601
 602         IRC_SetPenalty( Client, 1 );
 603         return CONNECTED;
 604 } /* Channel_Mode */
 605
 606
 607 GLOBAL BOOLEAN
 608 IRC_AWAY( CLIENT *Client, REQUEST *Req )
 609 {
 610         assert( Client != NULL );
 611         assert( Req != NULL );
 612
 613         /* Falsche Anzahl Parameter? */
 614         if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 615
 616         if(( Req->argc == 1 ) && (Req->argv[0][0] ))
 617         {
 618                 /* AWAY setzen */
 619                 Client_SetAway( Client, Req->argv[0] );
 620                 Client_ModeAdd( Client, 'a' );
 621                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
 622                 return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
 623         }
 624         else
 625         {
 626                 /* AWAY loeschen */
 627                 Client_ModeDel( Client, 'a' );
 628                 IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
 629                 return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
 630         }
 631 } /* IRC_AWAY */
 632
 633
 634 LOCAL BOOLEAN
 635 Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 636 {
 637         CHAR *mask;
 638
 639         assert( Client != NULL );
 640         assert( Channel != NULL );
 641         assert( Pattern != NULL );
 642
 643         mask = Lists_MakeMask( Pattern );
 644
 645         if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
 646         return Send_ListChange( "+I", Prefix, Client, Channel, mask );
 647 } /* Add_Invite */
 648
 649
 650 LOCAL BOOLEAN
 651 Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 652 {
 653         CHAR *mask;
 654
 655         assert( Client != NULL );
 656         assert( Channel != NULL );
 657         assert( Pattern != NULL );
 658
 659         mask = Lists_MakeMask( Pattern );
 660
 661         if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
 662         return Send_ListChange( "+b", Prefix, Client, Channel, mask );
 663 } /* Add_Ban */
 664
 665
 666 LOCAL BOOLEAN
 667 Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 668 {
 669         CHAR *mask;
 670
 671         assert( Client != NULL );
 672         assert( Channel != NULL );
 673         assert( Pattern != NULL );
 674
 675         mask = Lists_MakeMask( Pattern );
 676         Lists_DelInvited( mask, Channel );
 677         return Send_ListChange( "-I", Prefix, Client, Channel, mask );
 678 } /* Del_Invite */
 679
 680
 681 LOCAL BOOLEAN
 682 Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
 683 {
 684         CHAR *mask;
 685
 686         assert( Client != NULL );
 687         assert( Channel != NULL );
 688         assert( Pattern != NULL );
 689
 690         mask = Lists_MakeMask( Pattern );
 691         Lists_DelBanned( mask, Channel );
 692         return Send_ListChange( "-b", Prefix, Client, Channel, mask );
 693 } /* Del_Ban */
 694
 695
 696 LOCAL BOOLEAN
 697 Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
 698 {
 699         /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
 700
 701         BOOLEAN ok;
 702
 703         if( Client_Type( Client ) == CLIENT_USER )
 704         {
 705                 /* Bestaetigung an Client */
 706                 ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 707         }
 708         else ok = TRUE;
 709
 710         /* an andere Server */
 711         IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 712
 713         /* und lokale User im Channel */
 714         IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
 715
 716         return ok;
 717 } /* Send_ListChange */
 718
 719
 720 /* -eof- */