Annotation of ircnowd/src/ngircd/channel.c, Revision 1.1
1.1 ! tomglok 1: /*
! 2: * ngIRCd -- The Next Generation IRC Daemon
! 3: * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
! 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:
! 12: #define __channel_c__
! 13:
! 14: #include "portab.h"
! 15:
! 16: /**
! 17: * @file
! 18: * Channel management
! 19: */
! 20:
! 21: #include <assert.h>
! 22: #include <stdlib.h>
! 23: #include <string.h>
! 24: #include <errno.h>
! 25: #include <stdio.h>
! 26: #include <strings.h>
! 27: #include <time.h>
! 28:
! 29: #include "conn-func.h"
! 30:
! 31: #include "channel.h"
! 32:
! 33: #include "irc-write.h"
! 34: #include "conf.h"
! 35: #include "hash.h"
! 36: #include "log.h"
! 37: #include "messages.h"
! 38: #include "match.h"
! 39: #include "parse.h"
! 40: #include "irc-mode.h"
! 41:
! 42: #define REMOVE_PART 0
! 43: #define REMOVE_QUIT 1
! 44: #define REMOVE_KICK 2
! 45:
! 46: static CHANNEL *My_Channels;
! 47: static CL2CHAN *My_Cl2Chan;
! 48:
! 49: static CL2CHAN *Get_Cl2Chan PARAMS(( CHANNEL *Chan, CLIENT *Client ));
! 50: static CL2CHAN *Add_Client PARAMS(( CHANNEL *Chan, CLIENT *Client ));
! 51: static bool Remove_Client PARAMS(( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer ));
! 52: static CL2CHAN *Get_First_Cl2Chan PARAMS(( CLIENT *Client, CHANNEL *Chan ));
! 53: static CL2CHAN *Get_Next_Cl2Chan PARAMS(( CL2CHAN *Start, CLIENT *Client, CHANNEL *Chan ));
! 54: static void Delete_Channel PARAMS(( CHANNEL *Chan ));
! 55: static void Free_Channel PARAMS(( CHANNEL *Chan ));
! 56: static void Set_KeyFile PARAMS((CHANNEL *Chan, const char *KeyFile));
! 57:
! 58:
! 59: GLOBAL void
! 60: Channel_Init( void )
! 61: {
! 62: My_Channels = NULL;
! 63: My_Cl2Chan = NULL;
! 64: } /* Channel_Init */
! 65:
! 66:
! 67: GLOBAL struct list_head *
! 68: Channel_GetListBans(CHANNEL *c)
! 69: {
! 70: assert(c != NULL);
! 71: return &c->list_bans;
! 72: }
! 73:
! 74:
! 75: GLOBAL struct list_head *
! 76: Channel_GetListExcepts(CHANNEL *c)
! 77: {
! 78: assert(c != NULL);
! 79: return &c->list_excepts;
! 80: }
! 81:
! 82:
! 83: GLOBAL struct list_head *
! 84: Channel_GetListInvites(CHANNEL *c)
! 85: {
! 86: assert(c != NULL);
! 87: return &c->list_invites;
! 88: }
! 89:
! 90:
! 91: /**
! 92: * Generate predefined persistent channels and &SERVER
! 93: */
! 94: GLOBAL void
! 95: Channel_InitPredefined( void )
! 96: {
! 97: CHANNEL *new_chan;
! 98: REQUEST Req;
! 99: const struct Conf_Channel *conf_chan;
! 100: char *c;
! 101: char modes[COMMAND_LEN], name[CHANNEL_NAME_LEN];
! 102: size_t i, n, channel_count = array_length(&Conf_Channels, sizeof(*conf_chan));
! 103:
! 104: conf_chan = array_start(&Conf_Channels);
! 105:
! 106: assert(channel_count == 0 || conf_chan != NULL);
! 107:
! 108: for (i = 0; i < channel_count; i++, conf_chan++) {
! 109: if (!conf_chan->name[0])
! 110: continue;
! 111: if (!Channel_IsValidName(conf_chan->name)) {
! 112: Log(LOG_ERR,
! 113: "Can't create pre-defined channel: invalid name: \"%s\"",
! 114: conf_chan->name);
! 115: continue;
! 116: }
! 117:
! 118: new_chan = Channel_Search(conf_chan->name);
! 119: if (new_chan) {
! 120: Log(LOG_INFO,
! 121: "Can't create pre-defined channel \"%s\": name already in use.",
! 122: conf_chan->name);
! 123: Set_KeyFile(new_chan, conf_chan->keyfile);
! 124: continue;
! 125: }
! 126:
! 127: new_chan = Channel_Create(conf_chan->name);
! 128: if (!new_chan) {
! 129: Log(LOG_ERR, "Can't create pre-defined channel \"%s\"!",
! 130: conf_chan->name);
! 131: continue;
! 132: }
! 133: Channel_ModeAdd(new_chan, 'P');
! 134:
! 135: if (conf_chan->topic[0])
! 136: Channel_SetTopic(new_chan, NULL, conf_chan->topic);
! 137:
! 138: /* Evaluate modes strings with fake requests */
! 139: if (conf_chan->modes_num) {
! 140: /* Prepare fake request structure */
! 141: strlcpy(name, conf_chan->name, sizeof(name));
! 142: Log(LOG_INFO, "Evaluating predefined channel modes for \"%s\".", name);
! 143: Req.argv[0] = name;
! 144: Req.prefix = Client_ID(Client_ThisServer());
! 145: Req.command = "MODE";
! 146:
! 147: /* Iterate over channel modes strings */
! 148: for (n = 0; n < conf_chan->modes_num; n++) {
! 149: Req.argc = 1;
! 150: strlcpy(modes, conf_chan->modes[n], sizeof(modes));
! 151: Log(LOG_DEBUG, "Evaluate \"MODE %s %s\".", name, modes);
! 152: c = strtok(modes, " ");
! 153: while (c && Req.argc < 15) {
! 154: Req.argv[Req.argc++] = c;
! 155: c = strtok(0, " ");
! 156: }
! 157:
! 158: if (Req.argc > 1) {
! 159: /* Handling of legacy "Key" and "MaxUsers" settings:
! 160: * Enforce setting the respective mode(s), to support
! 161: * the legacy "Mode = kl" notation, which was valid but
! 162: * is an invalid MODE string: key and limit are missing!
! 163: * So set them manually when "k" or "l" are detected in
! 164: * the first MODE parameter ... */
! 165: if (Req.argc > 1 && strchr(Req.argv[1], 'k')) {
! 166: Channel_SetKey(new_chan, conf_chan->key);
! 167: Channel_ModeAdd(new_chan, 'k');
! 168: }
! 169: if (strchr(Req.argv[1], 'l')) {
! 170: Channel_SetMaxUsers(new_chan, conf_chan->maxusers);
! 171: Channel_ModeAdd(new_chan, 'l');
! 172: }
! 173:
! 174: IRC_MODE(Client_ThisServer(), &Req);
! 175: }
! 176:
! 177: /* Original channel modes srings are no longer needed */
! 178: free(conf_chan->modes[n]);
! 179: }
! 180: }
! 181:
! 182: Set_KeyFile(new_chan, conf_chan->keyfile);
! 183:
! 184: Log(LOG_INFO,
! 185: "Created pre-defined channel \"%s\", mode \"%s\" (key \"%s\", limit %d).",
! 186: new_chan->name, new_chan->modes, new_chan->key,
! 187: new_chan->maxusers);
! 188: }
! 189: if (channel_count)
! 190: array_free(&Conf_Channels);
! 191:
! 192: /* Make sure the local &SERVER channel exists */
! 193: if (!Channel_Search("&SERVER")) {
! 194: new_chan = Channel_Create("&SERVER");
! 195: if (new_chan) {
! 196: Channel_SetModes(new_chan, "mnPt");
! 197: Channel_SetTopic(new_chan, Client_ThisServer(),
! 198: "Server Messages");
! 199: } else
! 200: Log(LOG_ERR, "Failed to create \"&SERVER\" channel!");
! 201: } else
! 202: LogDebug("Required channel \"&SERVER\" already exists, ok.");
! 203: } /* Channel_InitPredefined */
! 204:
! 205:
! 206: static void
! 207: Free_Channel(CHANNEL *chan)
! 208: {
! 209: array_free(&chan->topic);
! 210: array_free(&chan->keyfile);
! 211: Lists_Free(&chan->list_bans);
! 212: Lists_Free(&chan->list_excepts);
! 213: Lists_Free(&chan->list_invites);
! 214:
! 215: free(chan);
! 216: }
! 217:
! 218:
! 219: GLOBAL void
! 220: Channel_Exit( void )
! 221: {
! 222: CHANNEL *c, *c_next;
! 223: CL2CHAN *cl2chan, *cl2chan_next;
! 224:
! 225: /* free struct Channel */
! 226: c = My_Channels;
! 227: while (c) {
! 228: c_next = c->next;
! 229: Free_Channel(c);
! 230: c = c_next;
! 231: }
! 232:
! 233: /* Free Channel allocation table */
! 234: cl2chan = My_Cl2Chan;
! 235: while (cl2chan) {
! 236: cl2chan_next = cl2chan->next;
! 237: free(cl2chan);
! 238: cl2chan = cl2chan_next;
! 239: }
! 240: } /* Channel_Exit */
! 241:
! 242:
! 243: /**
! 244: * Join Channel
! 245: * This function lets a client join a channel. First, the function
! 246: * checks that the specified channel name is valid and that the client
! 247: * isn't already a member. If the specified channel doesn't exist,
! 248: * a new channel is created. Client is added to channel by function
! 249: * Add_Client().
! 250: */
! 251: GLOBAL bool
! 252: Channel_Join( CLIENT *Client, const char *Name )
! 253: {
! 254: CHANNEL *chan;
! 255:
! 256: assert(Client != NULL);
! 257: assert(Name != NULL);
! 258:
! 259: /* Check that the channel name is valid */
! 260: if (! Channel_IsValidName(Name)) {
! 261: IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
! 262: Client_ID(Client), Name);
! 263: return false;
! 264: }
! 265:
! 266: chan = Channel_Search(Name);
! 267: if(chan) {
! 268: /* Check if the client is already in the channel */
! 269: if (Get_Cl2Chan(chan, Client))
! 270: return false;
! 271: } else {
! 272: /* If the specified channel does not exist, the channel
! 273: * is now created */
! 274: chan = Channel_Create(Name);
! 275: if (!chan)
! 276: return false;
! 277: }
! 278:
! 279: /* Add user to Channel */
! 280: if (! Add_Client(chan, Client))
! 281: return false;
! 282:
! 283: return true;
! 284: } /* Channel_Join */
! 285:
! 286:
! 287: /**
! 288: * Part client from channel.
! 289: * This function lets a client part from a channel. First, the function checks
! 290: * if the channel exists and the client is a member of it and sends out
! 291: * appropriate error messages if not. The real work is done by the function
! 292: * Remove_Client().
! 293: */
! 294: GLOBAL bool
! 295: Channel_Part(CLIENT * Client, CLIENT * Origin, const char *Name, const char *Reason)
! 296: {
! 297: CHANNEL *chan;
! 298:
! 299: assert(Client != NULL);
! 300: assert(Name != NULL);
! 301: assert(Reason != NULL);
! 302:
! 303: /* Check that specified channel exists */
! 304: chan = Channel_Search(Name);
! 305: if (!chan) {
! 306: IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
! 307: Client_ID(Client), Name);
! 308: return false;
! 309: }
! 310:
! 311: /* Check that the client is in the channel */
! 312: if (!Get_Cl2Chan(chan, Client)) {
! 313: IRC_WriteErrClient(Client, ERR_NOTONCHANNEL_MSG,
! 314: Client_ID(Client), Name);
! 315: return false;
! 316: }
! 317:
! 318: if (Conf_MorePrivacy)
! 319: Reason = "";
! 320:
! 321: /* Part client from channel */
! 322: if (!Remove_Client(REMOVE_PART, chan, Client, Origin, Reason, true))
! 323: return false;
! 324: else
! 325: return true;
! 326: } /* Channel_Part */
! 327:
! 328:
! 329: /**
! 330: * Kick user from Channel
! 331: */
! 332: GLOBAL void
! 333: Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
! 334: const char *Reason )
! 335: {
! 336: CHANNEL *chan;
! 337: bool can_kick = false;
! 338:
! 339: assert(Peer != NULL);
! 340: assert(Target != NULL);
! 341: assert(Origin != NULL);
! 342: assert(Name != NULL);
! 343: assert(Reason != NULL);
! 344:
! 345: /* Check that channel exists */
! 346: chan = Channel_Search( Name );
! 347: if (!chan) {
! 348: IRC_WriteErrClient(Origin, ERR_NOSUCHCHANNEL_MSG,
! 349: Client_ID(Origin), Name);
! 350: return;
! 351: }
! 352:
! 353: if (Client_Type(Peer) != CLIENT_SERVER &&
! 354: Client_Type(Origin) != CLIENT_SERVICE) {
! 355: /* Check that user is on the specified channel */
! 356: if (!Channel_IsMemberOf(chan, Origin)) {
! 357: IRC_WriteErrClient(Origin, ERR_NOTONCHANNEL_MSG,
! 358: Client_ID(Origin), Name);
! 359: return;
! 360: }
! 361: }
! 362:
! 363: /* Check that the client to be kicked is on the specified channel */
! 364: if (!Channel_IsMemberOf(chan, Target)) {
! 365: IRC_WriteErrClient(Origin, ERR_USERNOTINCHANNEL_MSG,
! 366: Client_ID(Origin), Client_ID(Target), Name );
! 367: return;
! 368: }
! 369:
! 370: if(Client_Type(Peer) == CLIENT_USER) {
! 371: /* Channel mode 'Q' and user mode 'q' on target: nobody but
! 372: * IRC Operators and servers can kick the target user */
! 373: if ((Channel_HasMode(chan, 'Q')
! 374: || Client_HasMode(Target, 'q')
! 375: || Client_Type(Target) == CLIENT_SERVICE)
! 376: && !Client_HasMode(Origin, 'o')) {
! 377: IRC_WriteErrClient(Origin, ERR_KICKDENY_MSG,
! 378: Client_ID(Origin), Name,
! 379: Client_ID(Target));
! 380: return;
! 381: }
! 382:
! 383: /* Check if client has the rights to kick target */
! 384:
! 385: /* Owner can kick everyone */
! 386: if (Channel_UserHasMode(chan, Peer, 'q'))
! 387: can_kick = true;
! 388:
! 389: /* Admin can't kick owner */
! 390: else if (Channel_UserHasMode(chan, Peer, 'a') &&
! 391: !Channel_UserHasMode(chan, Target, 'q'))
! 392: can_kick = true;
! 393:
! 394: /* Op can't kick owner | admin */
! 395: else if (Channel_UserHasMode(chan, Peer, 'o') &&
! 396: !Channel_UserHasMode(chan, Target, 'q') &&
! 397: !Channel_UserHasMode(chan, Target, 'a'))
! 398: can_kick = true;
! 399:
! 400: /* Half Op can't kick owner | admin | op */
! 401: else if (Channel_UserHasMode(chan, Peer, 'h') &&
! 402: !Channel_UserHasMode(chan, Target, 'q') &&
! 403: !Channel_UserHasMode(chan, Target, 'a') &&
! 404: !Channel_UserHasMode(chan, Target, 'o'))
! 405: can_kick = true;
! 406:
! 407: /* IRC operators & IRCd with OperCanMode enabled
! 408: * can kick anyways regardless of privilege */
! 409: else if(Client_HasMode(Origin, 'o') && Conf_OperCanMode)
! 410: can_kick = true;
! 411:
! 412: if(!can_kick) {
! 413: IRC_WriteErrClient(Origin, ERR_CHANOPPRIVTOOLOW_MSG,
! 414: Client_ID(Origin), Name);
! 415: return;
! 416: }
! 417: }
! 418:
! 419: /* Kick Client from channel */
! 420: Remove_Client( REMOVE_KICK, chan, Target, Origin, Reason, true);
! 421: } /* Channel_Kick */
! 422:
! 423:
! 424: GLOBAL void
! 425: Channel_Quit( CLIENT *Client, const char *Reason )
! 426: {
! 427: CHANNEL *c, *next_c;
! 428:
! 429: assert( Client != NULL );
! 430: assert( Reason != NULL );
! 431:
! 432: if (Conf_MorePrivacy)
! 433: Reason = "";
! 434:
! 435: IRC_WriteStrRelatedPrefix( Client, Client, false, "QUIT :%s", Reason );
! 436:
! 437: c = My_Channels;
! 438: while( c )
! 439: {
! 440: next_c = c->next;
! 441: Remove_Client( REMOVE_QUIT, c, Client, Client, Reason, false );
! 442: c = next_c;
! 443: }
! 444: } /* Channel_Quit */
! 445:
! 446:
! 447: /**
! 448: * Get number of channels this server knows and that are "visible" to
! 449: * the given client. If no client is given, all channels will be counted.
! 450: *
! 451: * @param Client The client to check or NULL.
! 452: * @return Number of channels visible to the client.
! 453: */
! 454: GLOBAL unsigned long
! 455: Channel_CountVisible (CLIENT *Client)
! 456: {
! 457: CHANNEL *c;
! 458: unsigned long count = 0;
! 459:
! 460: c = My_Channels;
! 461: while(c) {
! 462: if (Client) {
! 463: if (!Channel_HasMode(c, 's')
! 464: || Channel_IsMemberOf(c, Client))
! 465: count++;
! 466: } else
! 467: count++;
! 468: c = c->next;
! 469: }
! 470: return count;
! 471: }
! 472:
! 473:
! 474: GLOBAL unsigned long
! 475: Channel_MemberCount( CHANNEL *Chan )
! 476: {
! 477: CL2CHAN *cl2chan;
! 478: unsigned long count = 0;
! 479:
! 480: assert( Chan != NULL );
! 481:
! 482: cl2chan = My_Cl2Chan;
! 483: while( cl2chan )
! 484: {
! 485: if( cl2chan->channel == Chan ) count++;
! 486: cl2chan = cl2chan->next;
! 487: }
! 488: return count;
! 489: } /* Channel_MemberCount */
! 490:
! 491:
! 492: GLOBAL int
! 493: Channel_CountForUser( CLIENT *Client )
! 494: {
! 495: /* Count number of channels a user is member of. */
! 496:
! 497: CL2CHAN *cl2chan;
! 498: int count = 0;
! 499:
! 500: assert( Client != NULL );
! 501:
! 502: cl2chan = My_Cl2Chan;
! 503: while( cl2chan )
! 504: {
! 505: if( cl2chan->client == Client ) count++;
! 506: cl2chan = cl2chan->next;
! 507: }
! 508:
! 509: return count;
! 510: } /* Channel_CountForUser */
! 511:
! 512:
! 513: GLOBAL const char *
! 514: Channel_Name( const CHANNEL *Chan )
! 515: {
! 516: assert( Chan != NULL );
! 517: return Chan->name;
! 518: } /* Channel_Name */
! 519:
! 520:
! 521: GLOBAL char *
! 522: Channel_Modes( CHANNEL *Chan )
! 523: {
! 524: assert( Chan != NULL );
! 525: return Chan->modes;
! 526: } /* Channel_Modes */
! 527:
! 528:
! 529: GLOBAL bool
! 530: Channel_HasMode( CHANNEL *Chan, char Mode )
! 531: {
! 532: assert( Chan != NULL );
! 533: return strchr( Chan->modes, Mode ) != NULL;
! 534: } /* Channel_HasMode */
! 535:
! 536:
! 537: GLOBAL char *
! 538: Channel_Key( CHANNEL *Chan )
! 539: {
! 540: assert( Chan != NULL );
! 541: return Chan->key;
! 542: } /* Channel_Key */
! 543:
! 544:
! 545: GLOBAL unsigned long
! 546: Channel_MaxUsers( CHANNEL *Chan )
! 547: {
! 548: assert( Chan != NULL );
! 549: return Chan->maxusers;
! 550: } /* Channel_MaxUsers */
! 551:
! 552:
! 553: GLOBAL CHANNEL *
! 554: Channel_First( void )
! 555: {
! 556: return My_Channels;
! 557: } /* Channel_First */
! 558:
! 559:
! 560: GLOBAL CHANNEL *
! 561: Channel_Next( CHANNEL *Chan )
! 562: {
! 563: assert( Chan != NULL );
! 564: return Chan->next;
! 565: } /* Channel_Next */
! 566:
! 567:
! 568: GLOBAL CHANNEL *
! 569: Channel_Search( const char *Name )
! 570: {
! 571: /* Search channel structure */
! 572:
! 573: CHANNEL *c;
! 574: UINT32 search_hash;
! 575:
! 576: assert( Name != NULL );
! 577:
! 578: search_hash = Hash( Name );
! 579: c = My_Channels;
! 580: while( c )
! 581: {
! 582: if( search_hash == c->hash )
! 583: {
! 584: /* hash hit */
! 585: if( strcasecmp( Name, c->name ) == 0 ) return c;
! 586: }
! 587: c = c->next;
! 588: }
! 589: return NULL;
! 590: } /* Channel_Search */
! 591:
! 592:
! 593: GLOBAL CL2CHAN *
! 594: Channel_FirstMember( CHANNEL *Chan )
! 595: {
! 596: assert( Chan != NULL );
! 597: return Get_First_Cl2Chan( NULL, Chan );
! 598: } /* Channel_FirstMember */
! 599:
! 600:
! 601: GLOBAL CL2CHAN *
! 602: Channel_NextMember( CHANNEL *Chan, CL2CHAN *Cl2Chan )
! 603: {
! 604: assert( Chan != NULL );
! 605: assert( Cl2Chan != NULL );
! 606: return Get_Next_Cl2Chan( Cl2Chan->next, NULL, Chan );
! 607: } /* Channel_NextMember */
! 608:
! 609:
! 610: GLOBAL CL2CHAN *
! 611: Channel_FirstChannelOf( CLIENT *Client )
! 612: {
! 613: assert( Client != NULL );
! 614: return Get_First_Cl2Chan( Client, NULL );
! 615: } /* Channel_FirstChannelOf */
! 616:
! 617:
! 618: GLOBAL CL2CHAN *
! 619: Channel_NextChannelOf( CLIENT *Client, CL2CHAN *Cl2Chan )
! 620: {
! 621: assert( Client != NULL );
! 622: assert( Cl2Chan != NULL );
! 623: return Get_Next_Cl2Chan( Cl2Chan->next, Client, NULL );
! 624: } /* Channel_NextChannelOf */
! 625:
! 626:
! 627: GLOBAL CLIENT *
! 628: Channel_GetClient( CL2CHAN *Cl2Chan )
! 629: {
! 630: assert( Cl2Chan != NULL );
! 631: return Cl2Chan->client;
! 632: } /* Channel_GetClient */
! 633:
! 634:
! 635: GLOBAL CHANNEL *
! 636: Channel_GetChannel( CL2CHAN *Cl2Chan )
! 637: {
! 638: assert( Cl2Chan != NULL );
! 639: return Cl2Chan->channel;
! 640: } /* Channel_GetChannel */
! 641:
! 642:
! 643: GLOBAL bool
! 644: Channel_IsValidName( const char *Name )
! 645: {
! 646: assert( Name != NULL );
! 647:
! 648: #ifdef STRICT_RFC
! 649: if (strlen(Name) <= 1)
! 650: return false;
! 651: #endif
! 652: if (strchr("#&+", Name[0]) == NULL)
! 653: return false;
! 654: if (strlen(Name) >= CHANNEL_NAME_LEN)
! 655: return false;
! 656:
! 657: return Name[strcspn(Name, " ,:\007")] == 0;
! 658: } /* Channel_IsValidName */
! 659:
! 660:
! 661: GLOBAL bool
! 662: Channel_ModeAdd( CHANNEL *Chan, char Mode )
! 663: {
! 664: /* set Mode.
! 665: * If the channel already had this mode, return false.
! 666: * If the channel mode was newly set return true.
! 667: */
! 668:
! 669: char x[2];
! 670:
! 671: assert( Chan != NULL );
! 672:
! 673: x[0] = Mode; x[1] = '\0';
! 674: if( ! Channel_HasMode( Chan, x[0] ))
! 675: {
! 676: /* Channel does not have this mode yet, set it */
! 677: strlcat( Chan->modes, x, sizeof( Chan->modes ));
! 678: return true;
! 679: }
! 680: else return false;
! 681: } /* Channel_ModeAdd */
! 682:
! 683:
! 684: GLOBAL bool
! 685: Channel_ModeDel( CHANNEL *Chan, char Mode )
! 686: {
! 687: /* Delete mode.
! 688: * if the mode was removed return true.
! 689: * if the channel did not have the mode, return false.
! 690: */
! 691: char *p;
! 692:
! 693: assert( Chan != NULL );
! 694:
! 695: p = strchr( Chan->modes, Mode );
! 696: if( ! p ) return false;
! 697:
! 698: /* Channel has mode -> delete */
! 699: while( *p )
! 700: {
! 701: *p = *(p + 1);
! 702: p++;
! 703: }
! 704: return true;
! 705: } /* Channel_ModeDel */
! 706:
! 707:
! 708: GLOBAL bool
! 709: Channel_UserModeAdd( CHANNEL *Chan, CLIENT *Client, char Mode )
! 710: {
! 711: /* Set Channel-User-Mode.
! 712: * if mode was newly set, return true.
! 713: * if the User already had this channel-mode, return false.
! 714: */
! 715:
! 716: CL2CHAN *cl2chan;
! 717: char x[2];
! 718:
! 719: assert( Chan != NULL );
! 720: assert( Client != NULL );
! 721:
! 722: cl2chan = Get_Cl2Chan( Chan, Client );
! 723: assert( cl2chan != NULL );
! 724:
! 725: x[0] = Mode; x[1] = '\0';
! 726: if( ! strchr( cl2chan->modes, x[0] ))
! 727: {
! 728: /* mode not set, -> set it */
! 729: strlcat( cl2chan->modes, x, sizeof( cl2chan->modes ));
! 730: return true;
! 731: }
! 732: else return false;
! 733: } /* Channel_UserModeAdd */
! 734:
! 735:
! 736: GLOBAL bool
! 737: Channel_UserModeDel( CHANNEL *Chan, CLIENT *Client, char Mode )
! 738: {
! 739: /* Delete Channel-User-Mode.
! 740: * If Mode was removed, return true.
! 741: * If User did not have the Channel-Mode, return false.
! 742: */
! 743:
! 744: CL2CHAN *cl2chan;
! 745: char *p;
! 746:
! 747: assert( Chan != NULL );
! 748: assert( Client != NULL );
! 749:
! 750: cl2chan = Get_Cl2Chan( Chan, Client );
! 751: assert( cl2chan != NULL );
! 752:
! 753: p = strchr( cl2chan->modes, Mode );
! 754: if( ! p ) return false;
! 755:
! 756: /* Client has Mode -> delete */
! 757: while( *p )
! 758: {
! 759: *p = *(p + 1);
! 760: p++;
! 761: }
! 762: return true;
! 763: } /* Channel_UserModeDel */
! 764:
! 765:
! 766: GLOBAL char *
! 767: Channel_UserModes( CHANNEL *Chan, CLIENT *Client )
! 768: {
! 769: /* return Users' Channel-Modes */
! 770:
! 771: CL2CHAN *cl2chan;
! 772:
! 773: assert( Chan != NULL );
! 774: assert( Client != NULL );
! 775:
! 776: cl2chan = Get_Cl2Chan( Chan, Client );
! 777: assert( cl2chan != NULL );
! 778:
! 779: return cl2chan->modes;
! 780: } /* Channel_UserModes */
! 781:
! 782:
! 783: GLOBAL bool
! 784: Channel_UserHasMode( CHANNEL *Chan, CLIENT *Client, char Mode )
! 785: {
! 786: return strchr(Channel_UserModes(Chan, Client), Mode) != NULL;
! 787: } /* Channel_UserHasMode */
! 788:
! 789:
! 790: GLOBAL bool
! 791: Channel_IsMemberOf( CHANNEL *Chan, CLIENT *Client )
! 792: {
! 793: /* Test if Client is on Channel Chan */
! 794:
! 795: assert( Chan != NULL );
! 796: assert( Client != NULL );
! 797: return Get_Cl2Chan(Chan, Client) != NULL;
! 798: } /* Channel_IsMemberOf */
! 799:
! 800:
! 801: GLOBAL char *
! 802: Channel_Topic( CHANNEL *Chan )
! 803: {
! 804: char *ret;
! 805: assert( Chan != NULL );
! 806: ret = array_start(&Chan->topic);
! 807: return ret ? ret : "";
! 808: } /* Channel_Topic */
! 809:
! 810:
! 811: #ifndef STRICT_RFC
! 812:
! 813: GLOBAL unsigned int
! 814: Channel_TopicTime(CHANNEL *Chan)
! 815: {
! 816: assert(Chan != NULL);
! 817: return (unsigned int) Chan->topic_time;
! 818: } /* Channel_TopicTime */
! 819:
! 820:
! 821: GLOBAL char *
! 822: Channel_TopicWho(CHANNEL *Chan)
! 823: {
! 824: assert(Chan != NULL);
! 825: return Chan->topic_who;
! 826: } /* Channel_TopicWho */
! 827:
! 828:
! 829: GLOBAL unsigned int
! 830: Channel_CreationTime(CHANNEL *Chan)
! 831: {
! 832: assert(Chan != NULL);
! 833: return (unsigned int) Chan->creation_time;
! 834: } /* Channel_CreationTime */
! 835:
! 836: #endif
! 837:
! 838:
! 839: GLOBAL void
! 840: Channel_SetTopic(CHANNEL *Chan, CLIENT *Client, const char *Topic)
! 841: {
! 842: size_t len;
! 843: assert( Chan != NULL );
! 844: assert( Topic != NULL );
! 845:
! 846: len = strlen(Topic);
! 847: if (len < array_bytes(&Chan->topic))
! 848: array_free(&Chan->topic);
! 849:
! 850: if (len >= COMMAND_LEN || !array_copyb(&Chan->topic, Topic, len+1))
! 851: Log(LOG_WARNING, "could not set new Topic \"%s\" on %s: %s",
! 852: Topic, Chan->name, strerror(errno));
! 853: #ifndef STRICT_RFC
! 854: Chan->topic_time = time(NULL);
! 855: if (Client != NULL && Client_Type(Client) != CLIENT_SERVER)
! 856: strlcpy(Chan->topic_who, Client_ID(Client),
! 857: sizeof Chan->topic_who);
! 858: else
! 859: strlcpy(Chan->topic_who, DEFAULT_TOPIC_ID,
! 860: sizeof Chan->topic_who);
! 861: #else
! 862: (void) Client;
! 863: #endif
! 864: } /* Channel_SetTopic */
! 865:
! 866:
! 867: GLOBAL void
! 868: Channel_SetModes( CHANNEL *Chan, const char *Modes )
! 869: {
! 870: assert( Chan != NULL );
! 871: assert( Modes != NULL );
! 872:
! 873: strlcpy( Chan->modes, Modes, sizeof( Chan->modes ));
! 874: } /* Channel_SetModes */
! 875:
! 876:
! 877: GLOBAL void
! 878: Channel_SetKey( CHANNEL *Chan, const char *Key )
! 879: {
! 880: assert( Chan != NULL );
! 881: assert( Key != NULL );
! 882:
! 883: strlcpy( Chan->key, Key, sizeof( Chan->key ));
! 884: LogDebug("Channel %s: Key is now \"%s\".", Chan->name, Chan->key );
! 885: } /* Channel_SetKey */
! 886:
! 887:
! 888: GLOBAL void
! 889: Channel_SetMaxUsers(CHANNEL *Chan, unsigned long Count)
! 890: {
! 891: assert( Chan != NULL );
! 892:
! 893: Chan->maxusers = Count;
! 894: LogDebug("Channel %s: Member limit is now %lu.", Chan->name, Chan->maxusers );
! 895: } /* Channel_SetMaxUsers */
! 896:
! 897:
! 898: /**
! 899: * Check if a client is allowed to send to a specific channel.
! 900: *
! 901: * @param Chan The channel to check.
! 902: * @param From The client that wants to send.
! 903: * @return true if the client is allowed to send, false otherwise.
! 904: */
! 905: static bool
! 906: Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
! 907: {
! 908: bool is_member, has_voice, is_halfop, is_op, is_chanadmin, is_owner;
! 909:
! 910: is_member = has_voice = is_halfop = is_op = is_chanadmin = is_owner = false;
! 911:
! 912: /* The server itself always can send messages :-) */
! 913: if (Client_ThisServer() == From)
! 914: return true;
! 915:
! 916: if (Channel_IsMemberOf(Chan, From)) {
! 917: is_member = true;
! 918: if (Channel_UserHasMode(Chan, From, 'v'))
! 919: has_voice = true;
! 920: if (Channel_UserHasMode(Chan, From, 'h'))
! 921: is_halfop = true;
! 922: if (Channel_UserHasMode(Chan, From, 'o'))
! 923: is_op = true;
! 924: if (Channel_UserHasMode(Chan, From, 'a'))
! 925: is_chanadmin = true;
! 926: if (Channel_UserHasMode(Chan, From, 'q'))
! 927: is_owner = true;
! 928: }
! 929:
! 930: /*
! 931: * Is the client allowed to write to channel?
! 932: *
! 933: * If channel mode n set: non-members cannot send to channel.
! 934: * If channel mode m set: need voice.
! 935: */
! 936: if (Channel_HasMode(Chan, 'n') && !is_member)
! 937: return false;
! 938:
! 939: if (Channel_HasMode(Chan, 'M') && !Client_HasMode(From, 'R')
! 940: && !Client_HasMode(From, 'o'))
! 941: return false;
! 942:
! 943: if (has_voice || is_halfop || is_op || is_chanadmin || is_owner)
! 944: return true;
! 945:
! 946: if (Channel_HasMode(Chan, 'm'))
! 947: return false;
! 948:
! 949: if (Lists_Check(&Chan->list_excepts, From))
! 950: return true;
! 951:
! 952: return !Lists_Check(&Chan->list_bans, From);
! 953: }
! 954:
! 955:
! 956: GLOBAL bool
! 957: Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Command,
! 958: bool SendErrors, const char *Text)
! 959: {
! 960: if (!Can_Send_To_Channel(Chan, From)) {
! 961: if (! SendErrors)
! 962: return CONNECTED; /* no error, see RFC 2812 */
! 963: if (Channel_HasMode(Chan, 'M'))
! 964: return IRC_WriteErrClient(From, ERR_NEEDREGGEDNICK_MSG,
! 965: Client_ID(From), Channel_Name(Chan));
! 966: else
! 967: return IRC_WriteErrClient(From, ERR_CANNOTSENDTOCHAN_MSG,
! 968: Client_ID(From), Channel_Name(Chan));
! 969: }
! 970:
! 971: if (Client_Conn(From) > NONE)
! 972: Conn_UpdateIdle(Client_Conn(From));
! 973:
! 974: IRC_WriteStrChannelPrefix(Client, Chan, From, true, "%s %s :%s",
! 975: Command, Channel_Name(Chan), Text);
! 976: return CONNECTED;
! 977: }
! 978:
! 979:
! 980: GLOBAL CHANNEL *
! 981: Channel_Create( const char *Name )
! 982: {
! 983: /* Create new CHANNEL structure and add it to linked list */
! 984: CHANNEL *c;
! 985:
! 986: assert( Name != NULL );
! 987:
! 988: c = (CHANNEL *)malloc( sizeof( CHANNEL ));
! 989: if( ! c )
! 990: {
! 991: Log( LOG_EMERG, "Can't allocate memory! [New_Chan]" );
! 992: return NULL;
! 993: }
! 994: memset( c, 0, sizeof( CHANNEL ));
! 995: strlcpy( c->name, Name, sizeof( c->name ));
! 996: c->hash = Hash( c->name );
! 997: c->next = My_Channels;
! 998: #ifndef STRICT_RFC
! 999: c->creation_time = time(NULL);
! 1000: #endif
! 1001: My_Channels = c;
! 1002: LogDebug("Created new channel structure for \"%s\".", Name);
! 1003: return c;
! 1004: } /* Channel_Create */
! 1005:
! 1006:
! 1007: static CL2CHAN *
! 1008: Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client )
! 1009: {
! 1010: CL2CHAN *cl2chan;
! 1011:
! 1012: assert( Chan != NULL );
! 1013: assert( Client != NULL );
! 1014:
! 1015: cl2chan = My_Cl2Chan;
! 1016: while( cl2chan )
! 1017: {
! 1018: if(( cl2chan->channel == Chan ) && ( cl2chan->client == Client )) return cl2chan;
! 1019: cl2chan = cl2chan->next;
! 1020: }
! 1021: return NULL;
! 1022: } /* Get_Cl2Chan */
! 1023:
! 1024:
! 1025: static CL2CHAN *
! 1026: Add_Client( CHANNEL *Chan, CLIENT *Client )
! 1027: {
! 1028: CL2CHAN *cl2chan;
! 1029:
! 1030: assert( Chan != NULL );
! 1031: assert( Client != NULL );
! 1032:
! 1033: /* Create new CL2CHAN structure */
! 1034: cl2chan = (CL2CHAN *)malloc( sizeof( CL2CHAN ));
! 1035: if( ! cl2chan )
! 1036: {
! 1037: Log( LOG_EMERG, "Can't allocate memory! [Add_Client]" );
! 1038: return NULL;
! 1039: }
! 1040: cl2chan->channel = Chan;
! 1041: cl2chan->client = Client;
! 1042: strcpy( cl2chan->modes, "" );
! 1043:
! 1044: /* concatenate */
! 1045: cl2chan->next = My_Cl2Chan;
! 1046: My_Cl2Chan = cl2chan;
! 1047:
! 1048: LogDebug("User \"%s\" joined channel \"%s\".", Client_Mask(Client), Chan->name);
! 1049:
! 1050: return cl2chan;
! 1051: } /* Add_Client */
! 1052:
! 1053:
! 1054: static bool
! 1055: Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer )
! 1056: {
! 1057: CL2CHAN *cl2chan, *last_cl2chan;
! 1058: CHANNEL *c;
! 1059:
! 1060: assert( Chan != NULL );
! 1061: assert( Client != NULL );
! 1062: assert( Origin != NULL );
! 1063: assert( Reason != NULL );
! 1064:
! 1065: /* Do not inform other servers if the channel is local to this server,
! 1066: * regardless of what the caller requested! */
! 1067: if(InformServer)
! 1068: InformServer = !Channel_IsLocal(Chan);
! 1069:
! 1070: last_cl2chan = NULL;
! 1071: cl2chan = My_Cl2Chan;
! 1072: while( cl2chan )
! 1073: {
! 1074: if(( cl2chan->channel == Chan ) && ( cl2chan->client == Client )) break;
! 1075: last_cl2chan = cl2chan;
! 1076: cl2chan = cl2chan->next;
! 1077: }
! 1078: if( ! cl2chan ) return false;
! 1079:
! 1080: c = cl2chan->channel;
! 1081: assert( c != NULL );
! 1082:
! 1083: /* maintain cl2chan list */
! 1084: if( last_cl2chan ) last_cl2chan->next = cl2chan->next;
! 1085: else My_Cl2Chan = cl2chan->next;
! 1086: free( cl2chan );
! 1087:
! 1088: switch( Type )
! 1089: {
! 1090: case REMOVE_QUIT:
! 1091: /* QUIT: other servers have already been notified,
! 1092: * see Client_Destroy(); so only inform other clients
! 1093: * in same channel. */
! 1094: assert( InformServer == false );
! 1095: LogDebug("User \"%s\" left channel \"%s\" (%s).",
! 1096: Client_Mask( Client ), c->name, Reason );
! 1097: break;
! 1098: case REMOVE_KICK:
! 1099: /* User was KICKed: inform other servers (public
! 1100: * channels) and all users in the channel */
! 1101: if( InformServer )
! 1102: IRC_WriteStrServersPrefix( Client_NextHop( Origin ),
! 1103: Origin, "KICK %s %s :%s", c->name, Client_ID( Client ), Reason);
! 1104: IRC_WriteStrChannelPrefix(Client, c, Origin, false, "KICK %s %s :%s",
! 1105: c->name, Client_ID( Client ), Reason );
! 1106: if ((Client_Conn(Client) > NONE) &&
! 1107: (Client_Type(Client) == CLIENT_USER))
! 1108: {
! 1109: IRC_WriteStrClientPrefix(Client, Origin, "KICK %s %s :%s",
! 1110: c->name, Client_ID( Client ), Reason);
! 1111: }
! 1112: LogDebug("User \"%s\" has been kicked off \"%s\" by \"%s\": %s.",
! 1113: Client_Mask( Client ), c->name, Client_ID(Origin), Reason);
! 1114: break;
! 1115: default: /* PART */
! 1116: if (Conf_MorePrivacy)
! 1117: Reason = "";
! 1118:
! 1119: if (InformServer)
! 1120: IRC_WriteStrServersPrefix(Origin, Client, "PART %s :%s", c->name, Reason);
! 1121:
! 1122: IRC_WriteStrChannelPrefix(Origin, c, Client, false, "PART %s :%s",
! 1123: c->name, Reason);
! 1124:
! 1125: if ((Client_Conn(Origin) > NONE) &&
! 1126: (Client_Type(Origin) == CLIENT_USER))
! 1127: {
! 1128: IRC_WriteStrClientPrefix( Origin, Client, "PART %s :%s", c->name, Reason);
! 1129: LogDebug("User \"%s\" left channel \"%s\" (%s).",
! 1130: Client_Mask(Client), c->name, Reason);
! 1131: }
! 1132: }
! 1133:
! 1134: /* When channel is empty and is not pre-defined, delete */
! 1135: if( ! Channel_HasMode( Chan, 'P' ))
! 1136: {
! 1137: if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan );
! 1138: }
! 1139:
! 1140: return true;
! 1141: } /* Remove_Client */
! 1142:
! 1143:
! 1144: GLOBAL bool
! 1145: Channel_AddBan(CHANNEL *c, const char *mask, const char *who )
! 1146: {
! 1147: struct list_head *h = Channel_GetListBans(c);
! 1148: LogDebug("Adding \"%s\" to \"%s\" ban list", mask, Channel_Name(c));
! 1149: return Lists_Add(h, mask, time(NULL), who, false);
! 1150: }
! 1151:
! 1152:
! 1153: GLOBAL bool
! 1154: Channel_AddExcept(CHANNEL *c, const char *mask, const char *who )
! 1155: {
! 1156: struct list_head *h = Channel_GetListExcepts(c);
! 1157: LogDebug("Adding \"%s\" to \"%s\" exception list", mask, Channel_Name(c));
! 1158: return Lists_Add(h, mask, time(NULL), who, false);
! 1159: }
! 1160:
! 1161:
! 1162: GLOBAL bool
! 1163: Channel_AddInvite(CHANNEL *c, const char *mask, bool onlyonce, const char *who )
! 1164: {
! 1165: struct list_head *h = Channel_GetListInvites(c);
! 1166: LogDebug("Adding \"%s\" to \"%s\" invite list", mask, Channel_Name(c));
! 1167: return Lists_Add(h, mask, time(NULL), who, onlyonce);
! 1168: }
! 1169:
! 1170:
! 1171: static bool
! 1172: ShowChannelList(struct list_head *head, CLIENT *Client, CHANNEL *Channel,
! 1173: char *msg, char *msg_end)
! 1174: {
! 1175: struct list_elem *e;
! 1176:
! 1177: assert (Client != NULL);
! 1178: assert (Channel != NULL);
! 1179:
! 1180: e = Lists_GetFirst(head);
! 1181: while (e) {
! 1182: if (!IRC_WriteStrClient(Client, msg, Client_ID(Client),
! 1183: Channel_Name(Channel),
! 1184: Lists_GetMask(e),
! 1185: Lists_GetReason(e),
! 1186: Lists_GetValidity(e)))
! 1187: return DISCONNECTED;
! 1188: e = Lists_GetNext(e);
! 1189: }
! 1190:
! 1191: return IRC_WriteStrClient(Client, msg_end, Client_ID(Client),
! 1192: Channel_Name(Channel));
! 1193: }
! 1194:
! 1195:
! 1196: GLOBAL bool
! 1197: Channel_ShowBans( CLIENT *Client, CHANNEL *Channel )
! 1198: {
! 1199: struct list_head *h;
! 1200:
! 1201: assert( Channel != NULL );
! 1202:
! 1203: h = Channel_GetListBans(Channel);
! 1204: return ShowChannelList(h, Client, Channel, RPL_BANLIST_MSG,
! 1205: RPL_ENDOFBANLIST_MSG);
! 1206: }
! 1207:
! 1208:
! 1209: GLOBAL bool
! 1210: Channel_ShowExcepts( CLIENT *Client, CHANNEL *Channel )
! 1211: {
! 1212: struct list_head *h;
! 1213:
! 1214: assert( Channel != NULL );
! 1215:
! 1216: h = Channel_GetListExcepts(Channel);
! 1217: return ShowChannelList(h, Client, Channel, RPL_EXCEPTLIST_MSG,
! 1218: RPL_ENDOFEXCEPTLIST_MSG);
! 1219: }
! 1220:
! 1221:
! 1222: GLOBAL bool
! 1223: Channel_ShowInvites( CLIENT *Client, CHANNEL *Channel )
! 1224: {
! 1225: struct list_head *h;
! 1226:
! 1227: assert( Channel != NULL );
! 1228:
! 1229: h = Channel_GetListInvites(Channel);
! 1230: return ShowChannelList(h, Client, Channel, RPL_INVITELIST_MSG,
! 1231: RPL_ENDOFINVITELIST_MSG);
! 1232: }
! 1233:
! 1234:
! 1235: /**
! 1236: * Log a message to the local &SERVER channel, if it exists.
! 1237: */
! 1238: GLOBAL void
! 1239: Channel_LogServer(const char *msg)
! 1240: {
! 1241: CHANNEL *sc;
! 1242: CLIENT *c;
! 1243:
! 1244: assert(msg != NULL);
! 1245:
! 1246: sc = Channel_Search("&SERVER");
! 1247: if (!sc)
! 1248: return;
! 1249:
! 1250: c = Client_ThisServer();
! 1251: Channel_Write(sc, c, c, "PRIVMSG", false, msg);
! 1252: } /* Channel_LogServer */
! 1253:
! 1254:
! 1255: GLOBAL bool
! 1256: Channel_CheckKey(CHANNEL *Chan, CLIENT *Client, const char *Key)
! 1257: {
! 1258: char *file_name, line[COMMAND_LEN], *nick, *pass;
! 1259: FILE *fd;
! 1260:
! 1261: assert(Chan != NULL);
! 1262: assert(Client != NULL);
! 1263: assert(Key != NULL);
! 1264:
! 1265: if (!Channel_HasMode(Chan, 'k'))
! 1266: return true;
! 1267: if (*Key == '\0')
! 1268: return false;
! 1269: if (strcmp(Chan->key, Key) == 0)
! 1270: return true;
! 1271:
! 1272: file_name = array_start(&Chan->keyfile);
! 1273: if (!file_name)
! 1274: return false;
! 1275: fd = fopen(file_name, "r");
! 1276: if (!fd) {
! 1277: Log(LOG_ERR, "Can't open channel key file \"%s\" for %s: %s",
! 1278: file_name, Chan->name, strerror(errno));
! 1279: return false;
! 1280: }
! 1281:
! 1282: while (fgets(line, (int)sizeof(line), fd) != NULL) {
! 1283: ngt_TrimStr(line);
! 1284: if (! (nick = strchr(line, ':')))
! 1285: continue;
! 1286: *nick++ = '\0';
! 1287: if (!Match(line, Client_User(Client)))
! 1288: continue;
! 1289: if (! (pass = strchr(nick, ':')))
! 1290: continue;
! 1291: *pass++ = '\0';
! 1292: if (!Match(nick, Client_ID(Client)))
! 1293: continue;
! 1294: if (strcmp(Key, pass) != 0)
! 1295: continue;
! 1296:
! 1297: fclose(fd);
! 1298: return true;
! 1299: }
! 1300: fclose(fd);
! 1301: return false;
! 1302: } /* Channel_CheckKey */
! 1303:
! 1304:
! 1305: static CL2CHAN *
! 1306: Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan )
! 1307: {
! 1308: return Get_Next_Cl2Chan( My_Cl2Chan, Client, Chan );
! 1309: } /* Get_First_Cl2Chan */
! 1310:
! 1311:
! 1312: static CL2CHAN *
! 1313: Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channel )
! 1314: {
! 1315: CL2CHAN *cl2chan;
! 1316:
! 1317: assert( Client != NULL || Channel != NULL );
! 1318:
! 1319: cl2chan = Start;
! 1320: while( cl2chan )
! 1321: {
! 1322: if(( Client ) && ( cl2chan->client == Client )) return cl2chan;
! 1323: if(( Channel ) && ( cl2chan->channel == Channel )) return cl2chan;
! 1324: cl2chan = cl2chan->next;
! 1325: }
! 1326: return NULL;
! 1327: } /* Get_Next_Cl2Chan */
! 1328:
! 1329:
! 1330: /**
! 1331: * Remove a channel and free all of its data structures.
! 1332: */
! 1333: static void
! 1334: Delete_Channel(CHANNEL *Chan)
! 1335: {
! 1336: CHANNEL *chan, *last_chan;
! 1337:
! 1338: last_chan = NULL;
! 1339: chan = My_Channels;
! 1340: while (chan) {
! 1341: if (chan == Chan)
! 1342: break;
! 1343: last_chan = chan;
! 1344: chan = chan->next;
! 1345: }
! 1346:
! 1347: assert(chan != NULL);
! 1348: if (!chan)
! 1349: return;
! 1350:
! 1351: /* maintain channel list */
! 1352: if (last_chan)
! 1353: last_chan->next = chan->next;
! 1354: else
! 1355: My_Channels = chan->next;
! 1356:
! 1357: LogDebug("Freed channel structure for \"%s\".", Chan->name);
! 1358: Free_Channel(Chan);
! 1359: } /* Delete_Channel */
! 1360:
! 1361:
! 1362: static void
! 1363: Set_KeyFile(CHANNEL *Chan, const char *KeyFile)
! 1364: {
! 1365: size_t len;
! 1366:
! 1367: assert(Chan != NULL);
! 1368: assert(KeyFile != NULL);
! 1369:
! 1370: len = strlen(KeyFile);
! 1371: if (len < array_bytes(&Chan->keyfile)) {
! 1372: Log(LOG_INFO, "Channel key file of %s removed.", Chan->name);
! 1373: array_free(&Chan->keyfile);
! 1374: }
! 1375:
! 1376: if (len < 1)
! 1377: return;
! 1378:
! 1379: if (!array_copyb(&Chan->keyfile, KeyFile, len+1))
! 1380: Log(LOG_WARNING,
! 1381: "Could not set new channel key file \"%s\" for %s: %s",
! 1382: KeyFile, Chan->name, strerror(errno));
! 1383: else
! 1384: Log(LOG_INFO|LOG_snotice,
! 1385: "New local channel key file \"%s\" for %s activated.",
! 1386: KeyFile, Chan->name);
! 1387: } /* Set_KeyFile */
! 1388:
! 1389:
! 1390: /* -eof- */
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