2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
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.
29 #include "conn-func.h"
33 #include "irc-write.h"
46 static CHANNEL *My_Channels;
47 static CL2CHAN *My_Cl2Chan;
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));
67 GLOBAL struct list_head *
68 Channel_GetListBans(CHANNEL *c)
75 GLOBAL struct list_head *
76 Channel_GetListExcepts(CHANNEL *c)
79 return &c->list_excepts;
83 GLOBAL struct list_head *
84 Channel_GetListInvites(CHANNEL *c)
87 return &c->list_invites;
92 * Generate predefined persistent channels and &SERVER
95 Channel_InitPredefined( void )
99 const struct Conf_Channel *conf_chan;
101 char modes[COMMAND_LEN], name[CHANNEL_NAME_LEN];
102 size_t i, n, channel_count = array_length(&Conf_Channels, sizeof(*conf_chan));
104 conf_chan = array_start(&Conf_Channels);
106 assert(channel_count == 0 || conf_chan != NULL);
108 for (i = 0; i < channel_count; i++, conf_chan++) {
109 if (!conf_chan->name[0])
111 if (!Channel_IsValidName(conf_chan->name)) {
113 "Can't create pre-defined channel: invalid name: \"%s\"",
118 new_chan = Channel_Search(conf_chan->name);
121 "Can't create pre-defined channel \"%s\": name already in use.",
123 Set_KeyFile(new_chan, conf_chan->keyfile);
127 new_chan = Channel_Create(conf_chan->name);
129 Log(LOG_ERR, "Can't create pre-defined channel \"%s\"!",
133 Channel_ModeAdd(new_chan, 'P');
135 if (conf_chan->topic[0])
136 Channel_SetTopic(new_chan, NULL, conf_chan->topic);
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);
144 Req.prefix = Client_ID(Client_ThisServer());
145 Req.command = "MODE";
147 /* Iterate over channel modes strings */
148 for (n = 0; n < conf_chan->modes_num; n++) {
150 strlcpy(modes, conf_chan->modes[n], sizeof(modes));
151 LogDebug("Evaluate \"MODE %s %s\".", name, modes);
152 c = strtok(modes, " ");
153 while (c && Req.argc < 15) {
154 Req.argv[Req.argc++] = c;
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');
169 if (strchr(Req.argv[1], 'l')) {
170 Channel_SetMaxUsers(new_chan, conf_chan->maxusers);
171 Channel_ModeAdd(new_chan, 'l');
174 IRC_MODE(Client_ThisServer(), &Req);
177 /* Original channel modes srings are no longer needed */
178 free(conf_chan->modes[n]);
182 Set_KeyFile(new_chan, conf_chan->keyfile);
185 "Created pre-defined channel \"%s\", mode \"%s\" (key \"%s\", limit %d).",
186 new_chan->name, new_chan->modes, new_chan->key,
190 /* Make sure the local &SERVER channel exists */
191 if (!Channel_Search("&SERVER")) {
192 new_chan = Channel_Create("&SERVER");
194 Channel_SetModes(new_chan, "mnPt");
195 Channel_SetTopic(new_chan, Client_ThisServer(),
198 Log(LOG_ERR, "Failed to create \"&SERVER\" channel!");
200 LogDebug("Required channel \"&SERVER\" already exists, ok.");
201 } /* Channel_InitPredefined */
205 Free_Channel(CHANNEL *chan)
207 array_free(&chan->topic);
208 array_free(&chan->keyfile);
209 Lists_Free(&chan->list_bans);
210 Lists_Free(&chan->list_excepts);
211 Lists_Free(&chan->list_invites);
221 CL2CHAN *cl2chan, *cl2chan_next;
223 /* free struct Channel */
231 /* Free Channel allocation table */
232 cl2chan = My_Cl2Chan;
234 cl2chan_next = cl2chan->next;
236 cl2chan = cl2chan_next;
243 * This function lets a client join a channel. First, the function
244 * checks that the specified channel name is valid and that the client
245 * isn't already a member. If the specified channel doesn't exist,
246 * a new channel is created. Client is added to channel by function
250 Channel_Join( CLIENT *Client, const char *Name )
254 assert(Client != NULL);
255 assert(Name != NULL);
257 /* Check that the channel name is valid */
258 if (! Channel_IsValidName(Name)) {
259 IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
260 Client_ID(Client), Name);
264 chan = Channel_Search(Name);
266 /* Check if the client is already in the channel */
267 if (Get_Cl2Chan(chan, Client))
270 /* If the specified channel does not exist, the channel
272 chan = Channel_Create(Name);
277 /* Add user to Channel */
278 if (! Add_Client(chan, Client))
286 * Part client from channel.
287 * This function lets a client part from a channel. First, the function checks
288 * if the channel exists and the client is a member of it and sends out
289 * appropriate error messages if not. The real work is done by the function
293 Channel_Part(CLIENT * Client, CLIENT * Origin, const char *Name, const char *Reason)
297 assert(Client != NULL);
298 assert(Name != NULL);
299 assert(Reason != NULL);
301 /* Check that specified channel exists */
302 chan = Channel_Search(Name);
304 IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
305 Client_ID(Client), Name);
309 /* Check that the client is in the channel */
310 if (!Get_Cl2Chan(chan, Client)) {
311 IRC_WriteErrClient(Client, ERR_NOTONCHANNEL_MSG,
312 Client_ID(Client), Name);
316 if (Conf_MorePrivacy)
319 /* Part client from channel */
320 if (!Remove_Client(REMOVE_PART, chan, Client, Origin, Reason, true))
328 * Kick user from Channel
331 Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
335 bool can_kick = false;
337 assert(Peer != NULL);
338 assert(Target != NULL);
339 assert(Origin != NULL);
340 assert(Name != NULL);
341 assert(Reason != NULL);
343 /* Check that channel exists */
344 chan = Channel_Search( Name );
346 IRC_WriteErrClient(Origin, ERR_NOSUCHCHANNEL_MSG,
347 Client_ID(Origin), Name);
351 if (Client_Type(Peer) != CLIENT_SERVER &&
352 Client_Type(Origin) != CLIENT_SERVICE) {
353 /* Check that user is on the specified channel */
354 if (!Channel_IsMemberOf(chan, Origin)) {
355 IRC_WriteErrClient(Origin, ERR_NOTONCHANNEL_MSG,
356 Client_ID(Origin), Name);
361 /* Check that the client to be kicked is on the specified channel */
362 if (!Channel_IsMemberOf(chan, Target)) {
363 IRC_WriteErrClient(Origin, ERR_USERNOTINCHANNEL_MSG,
364 Client_ID(Origin), Client_ID(Target), Name );
368 if(Client_Type(Peer) == CLIENT_USER) {
369 /* Channel mode 'Q' and user mode 'q' on target: nobody but
370 * IRC Operators and servers can kick the target user */
371 if ((Channel_HasMode(chan, 'Q')
372 || Client_HasMode(Target, 'q')
373 || Client_Type(Target) == CLIENT_SERVICE)
374 && !Client_HasMode(Origin, 'o')) {
375 IRC_WriteErrClient(Origin, ERR_KICKDENY_MSG,
376 Client_ID(Origin), Name,
381 /* Check if client has the rights to kick target */
383 /* Owner can kick everyone */
384 if (Channel_UserHasMode(chan, Peer, 'q'))
387 /* Admin can't kick owner */
388 else if (Channel_UserHasMode(chan, Peer, 'a') &&
389 !Channel_UserHasMode(chan, Target, 'q'))
392 /* Op can't kick owner | admin */
393 else if (Channel_UserHasMode(chan, Peer, 'o') &&
394 !Channel_UserHasMode(chan, Target, 'q') &&
395 !Channel_UserHasMode(chan, Target, 'a'))
398 /* Half Op can't kick owner | admin | op */
399 else if (Channel_UserHasMode(chan, Peer, 'h') &&
400 !Channel_UserHasMode(chan, Target, 'q') &&
401 !Channel_UserHasMode(chan, Target, 'a') &&
402 !Channel_UserHasMode(chan, Target, 'o'))
405 /* IRC operators & IRCd with OperCanMode enabled
406 * can kick anyways regardless of privilege */
407 else if(Client_HasMode(Origin, 'o') && Conf_OperCanMode)
411 IRC_WriteErrClient(Origin, ERR_CHANOPPRIVTOOLOW_MSG,
412 Client_ID(Origin), Name);
417 /* Kick Client from channel */
418 Remove_Client( REMOVE_KICK, chan, Target, Origin, Reason, true);
423 Channel_Quit( CLIENT *Client, const char *Reason )
427 assert( Client != NULL );
428 assert( Reason != NULL );
430 if (Conf_MorePrivacy)
433 IRC_WriteStrRelatedPrefix( Client, Client, false, "QUIT :%s", Reason );
439 Remove_Client( REMOVE_QUIT, c, Client, Client, Reason, false );
446 * Get number of channels this server knows and that are "visible" to
447 * the given client. If no client is given, all channels will be counted.
449 * @param Client The client to check or NULL.
450 * @return Number of channels visible to the client.
453 Channel_CountVisible (CLIENT *Client)
456 unsigned long count = 0;
461 if (!Channel_HasMode(c, 's')
462 || Channel_IsMemberOf(c, Client))
473 Channel_MemberCount( CHANNEL *Chan )
476 unsigned long count = 0;
478 assert( Chan != NULL );
480 cl2chan = My_Cl2Chan;
483 if( cl2chan->channel == Chan ) count++;
484 cl2chan = cl2chan->next;
487 } /* Channel_MemberCount */
491 Channel_CountForUser( CLIENT *Client )
493 /* Count number of channels a user is member of. */
498 assert( Client != NULL );
500 cl2chan = My_Cl2Chan;
503 if( cl2chan->client == Client ) count++;
504 cl2chan = cl2chan->next;
508 } /* Channel_CountForUser */
512 Channel_Name( const CHANNEL *Chan )
514 assert( Chan != NULL );
520 Channel_Modes( CHANNEL *Chan )
522 assert( Chan != NULL );
524 } /* Channel_Modes */
528 Channel_HasMode( CHANNEL *Chan, char Mode )
530 assert( Chan != NULL );
531 return strchr( Chan->modes, Mode ) != NULL;
532 } /* Channel_HasMode */
536 Channel_Key( CHANNEL *Chan )
538 assert( Chan != NULL );
544 Channel_MaxUsers( CHANNEL *Chan )
546 assert( Chan != NULL );
547 return Chan->maxusers;
548 } /* Channel_MaxUsers */
552 Channel_First( void )
555 } /* Channel_First */
559 Channel_Next( CHANNEL *Chan )
561 assert( Chan != NULL );
567 Channel_Search( const char *Name )
569 /* Search channel structure */
574 assert( Name != NULL );
576 search_hash = Hash( Name );
580 if( search_hash == c->hash )
583 if( strcasecmp( Name, c->name ) == 0 ) return c;
588 } /* Channel_Search */
592 Channel_FirstMember( CHANNEL *Chan )
594 assert( Chan != NULL );
595 return Get_First_Cl2Chan( NULL, Chan );
596 } /* Channel_FirstMember */
600 Channel_NextMember( CHANNEL *Chan, CL2CHAN *Cl2Chan )
602 assert( Chan != NULL );
603 assert( Cl2Chan != NULL );
604 return Get_Next_Cl2Chan( Cl2Chan->next, NULL, Chan );
605 } /* Channel_NextMember */
609 Channel_FirstChannelOf( CLIENT *Client )
611 assert( Client != NULL );
612 return Get_First_Cl2Chan( Client, NULL );
613 } /* Channel_FirstChannelOf */
617 Channel_NextChannelOf( CLIENT *Client, CL2CHAN *Cl2Chan )
619 assert( Client != NULL );
620 assert( Cl2Chan != NULL );
621 return Get_Next_Cl2Chan( Cl2Chan->next, Client, NULL );
622 } /* Channel_NextChannelOf */
626 Channel_GetClient( CL2CHAN *Cl2Chan )
628 assert( Cl2Chan != NULL );
629 return Cl2Chan->client;
630 } /* Channel_GetClient */
634 Channel_GetChannel( CL2CHAN *Cl2Chan )
636 assert( Cl2Chan != NULL );
637 return Cl2Chan->channel;
638 } /* Channel_GetChannel */
642 Channel_IsValidName( const char *Name )
644 assert( Name != NULL );
647 if (strlen(Name) <= 1)
650 if (strchr("#&+", Name[0]) == NULL)
652 if (strlen(Name) >= CHANNEL_NAME_LEN)
655 return Name[strcspn(Name, " ,:\007")] == 0;
656 } /* Channel_IsValidName */
660 Channel_ModeAdd( CHANNEL *Chan, char Mode )
663 * If the channel already had this mode, return false.
664 * If the channel mode was newly set return true.
669 assert( Chan != NULL );
671 x[0] = Mode; x[1] = '\0';
672 if( ! Channel_HasMode( Chan, x[0] ))
674 /* Channel does not have this mode yet, set it */
675 strlcat( Chan->modes, x, sizeof( Chan->modes ));
679 } /* Channel_ModeAdd */
683 Channel_ModeDel( CHANNEL *Chan, char Mode )
686 * if the mode was removed return true.
687 * if the channel did not have the mode, return false.
691 assert( Chan != NULL );
693 p = strchr( Chan->modes, Mode );
694 if( ! p ) return false;
696 /* Channel has mode -> delete */
703 } /* Channel_ModeDel */
707 Channel_UserModeAdd( CHANNEL *Chan, CLIENT *Client, char Mode )
709 /* Set Channel-User-Mode.
710 * if mode was newly set, return true.
711 * if the User already had this channel-mode, return false.
717 assert( Chan != NULL );
718 assert( Client != NULL );
720 cl2chan = Get_Cl2Chan( Chan, Client );
721 assert( cl2chan != NULL );
723 x[0] = Mode; x[1] = '\0';
724 if( ! strchr( cl2chan->modes, x[0] ))
726 /* mode not set, -> set it */
727 strlcat( cl2chan->modes, x, sizeof( cl2chan->modes ));
731 } /* Channel_UserModeAdd */
735 Channel_UserModeDel( CHANNEL *Chan, CLIENT *Client, char Mode )
737 /* Delete Channel-User-Mode.
738 * If Mode was removed, return true.
739 * If User did not have the Channel-Mode, return false.
745 assert( Chan != NULL );
746 assert( Client != NULL );
748 cl2chan = Get_Cl2Chan( Chan, Client );
749 assert( cl2chan != NULL );
751 p = strchr( cl2chan->modes, Mode );
752 if( ! p ) return false;
754 /* Client has Mode -> delete */
761 } /* Channel_UserModeDel */
765 Channel_UserModes( CHANNEL *Chan, CLIENT *Client )
767 /* return Users' Channel-Modes */
771 assert( Chan != NULL );
772 assert( Client != NULL );
774 cl2chan = Get_Cl2Chan( Chan, Client );
775 assert( cl2chan != NULL );
777 return cl2chan->modes;
778 } /* Channel_UserModes */
782 Channel_UserHasMode( CHANNEL *Chan, CLIENT *Client, char Mode )
784 return strchr(Channel_UserModes(Chan, Client), Mode) != NULL;
785 } /* Channel_UserHasMode */
789 Channel_IsMemberOf( CHANNEL *Chan, CLIENT *Client )
791 /* Test if Client is on Channel Chan */
793 assert( Chan != NULL );
794 assert( Client != NULL );
795 return Get_Cl2Chan(Chan, Client) != NULL;
796 } /* Channel_IsMemberOf */
800 Channel_Topic( CHANNEL *Chan )
803 assert( Chan != NULL );
804 ret = array_start(&Chan->topic);
805 return ret ? ret : "";
806 } /* Channel_Topic */
812 Channel_TopicTime(CHANNEL *Chan)
814 assert(Chan != NULL);
815 return (unsigned int) Chan->topic_time;
816 } /* Channel_TopicTime */
820 Channel_TopicWho(CHANNEL *Chan)
822 assert(Chan != NULL);
823 return Chan->topic_who;
824 } /* Channel_TopicWho */
828 Channel_CreationTime(CHANNEL *Chan)
830 assert(Chan != NULL);
831 return (unsigned int) Chan->creation_time;
832 } /* Channel_CreationTime */
838 Channel_SetTopic(CHANNEL *Chan, CLIENT *Client, const char *Topic)
841 assert( Chan != NULL );
842 assert( Topic != NULL );
845 if (len < array_bytes(&Chan->topic))
846 array_free(&Chan->topic);
848 if (len >= COMMAND_LEN || !array_copyb(&Chan->topic, Topic, len+1))
849 Log(LOG_WARNING, "could not set new Topic \"%s\" on %s: %s",
850 Topic, Chan->name, strerror(errno));
852 Chan->topic_time = time(NULL);
853 if (Client != NULL && Client_Type(Client) != CLIENT_SERVER)
854 strlcpy(Chan->topic_who, Client_ID(Client),
855 sizeof Chan->topic_who);
857 strlcpy(Chan->topic_who, DEFAULT_TOPIC_ID,
858 sizeof Chan->topic_who);
862 } /* Channel_SetTopic */
866 Channel_SetModes( CHANNEL *Chan, const char *Modes )
868 assert( Chan != NULL );
869 assert( Modes != NULL );
871 strlcpy( Chan->modes, Modes, sizeof( Chan->modes ));
872 } /* Channel_SetModes */
876 Channel_SetKey( CHANNEL *Chan, const char *Key )
878 assert( Chan != NULL );
879 assert( Key != NULL );
881 strlcpy( Chan->key, Key, sizeof( Chan->key ));
882 LogDebug("Channel %s: Key is now \"%s\".", Chan->name, Chan->key );
883 } /* Channel_SetKey */
887 Channel_SetMaxUsers(CHANNEL *Chan, unsigned long Count)
889 assert( Chan != NULL );
891 Chan->maxusers = Count;
892 LogDebug("Channel %s: Member limit is now %lu.", Chan->name, Chan->maxusers );
893 } /* Channel_SetMaxUsers */
897 * Check if a client is allowed to send to a specific channel.
899 * @param Chan The channel to check.
900 * @param From The client that wants to send.
901 * @return true if the client is allowed to send, false otherwise.
904 Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
906 bool is_member, has_voice, is_halfop, is_op, is_chanadmin, is_owner;
908 is_member = has_voice = is_halfop = is_op = is_chanadmin = is_owner = false;
910 /* The server itself always can send messages :-) */
911 if (Client_ThisServer() == From)
914 if (Channel_IsMemberOf(Chan, From)) {
916 if (Channel_UserHasMode(Chan, From, 'v'))
918 if (Channel_UserHasMode(Chan, From, 'h'))
920 if (Channel_UserHasMode(Chan, From, 'o'))
922 if (Channel_UserHasMode(Chan, From, 'a'))
924 if (Channel_UserHasMode(Chan, From, 'q'))
929 * Is the client allowed to write to channel?
931 * If channel mode n set: non-members cannot send to channel.
932 * If channel mode m set: need voice.
934 if (Channel_HasMode(Chan, 'n') && !is_member)
937 if (Channel_HasMode(Chan, 'M') && !Client_HasMode(From, 'R')
938 && !Client_HasMode(From, 'o'))
941 if (has_voice || is_halfop || is_op || is_chanadmin || is_owner)
944 if (Channel_HasMode(Chan, 'm'))
947 if (Lists_Check(&Chan->list_excepts, From))
950 return !Lists_Check(&Chan->list_bans, From);
955 Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Command,
956 bool SendErrors, const char *Text)
958 if (!Can_Send_To_Channel(Chan, From)) {
960 return CONNECTED; /* no error, see RFC 2812 */
961 if (Channel_HasMode(Chan, 'M'))
962 return IRC_WriteErrClient(From, ERR_NEEDREGGEDNICK_MSG,
963 Client_ID(From), Channel_Name(Chan));
965 return IRC_WriteErrClient(From, ERR_CANNOTSENDTOCHAN_MSG,
966 Client_ID(From), Channel_Name(Chan));
969 if (Client_Conn(From) > NONE)
970 Conn_UpdateIdle(Client_Conn(From));
972 IRC_WriteStrChannelPrefix(Client, Chan, From, true, "%s %s :%s",
973 Command, Channel_Name(Chan), Text);
979 Channel_Create( const char *Name )
981 /* Create new CHANNEL structure and add it to linked list */
984 assert( Name != NULL );
986 c = (CHANNEL *)malloc( sizeof( CHANNEL ));
989 Log( LOG_EMERG, "Can't allocate memory! [New_Chan]" );
992 memset( c, 0, sizeof( CHANNEL ));
993 strlcpy( c->name, Name, sizeof( c->name ));
994 c->hash = Hash( c->name );
995 c->next = My_Channels;
997 c->creation_time = time(NULL);
1000 LogDebug("Created new channel structure for \"%s\".", Name);
1002 } /* Channel_Create */
1006 Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client )
1010 assert( Chan != NULL );
1011 assert( Client != NULL );
1013 cl2chan = My_Cl2Chan;
1016 if(( cl2chan->channel == Chan ) && ( cl2chan->client == Client )) return cl2chan;
1017 cl2chan = cl2chan->next;
1024 Add_Client( CHANNEL *Chan, CLIENT *Client )
1028 assert( Chan != NULL );
1029 assert( Client != NULL );
1031 /* Create new CL2CHAN structure */
1032 cl2chan = (CL2CHAN *)malloc( sizeof( CL2CHAN ));
1035 Log( LOG_EMERG, "Can't allocate memory! [Add_Client]" );
1038 cl2chan->channel = Chan;
1039 cl2chan->client = Client;
1040 strcpy( cl2chan->modes, "" );
1043 cl2chan->next = My_Cl2Chan;
1044 My_Cl2Chan = cl2chan;
1046 LogDebug("User \"%s\" joined channel \"%s\".", Client_Mask(Client), Chan->name);
1053 Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer )
1055 CL2CHAN *cl2chan, *last_cl2chan;
1058 assert( Chan != NULL );
1059 assert( Client != NULL );
1060 assert( Origin != NULL );
1061 assert( Reason != NULL );
1063 /* Do not inform other servers if the channel is local to this server,
1064 * regardless of what the caller requested! */
1066 InformServer = !Channel_IsLocal(Chan);
1068 last_cl2chan = NULL;
1069 cl2chan = My_Cl2Chan;
1072 if(( cl2chan->channel == Chan ) && ( cl2chan->client == Client )) break;
1073 last_cl2chan = cl2chan;
1074 cl2chan = cl2chan->next;
1076 if( ! cl2chan ) return false;
1078 c = cl2chan->channel;
1079 assert( c != NULL );
1081 /* maintain cl2chan list */
1082 if( last_cl2chan ) last_cl2chan->next = cl2chan->next;
1083 else My_Cl2Chan = cl2chan->next;
1089 /* QUIT: other servers have already been notified,
1090 * see Client_Destroy(); so only inform other clients
1091 * in same channel. */
1092 assert( InformServer == false );
1093 LogDebug("User \"%s\" left channel \"%s\" (%s).",
1094 Client_Mask( Client ), c->name, Reason );
1097 /* User was KICKed: inform other servers (public
1098 * channels) and all users in the channel */
1100 IRC_WriteStrServersPrefix( Client_NextHop( Origin ),
1101 Origin, "KICK %s %s :%s", c->name, Client_ID( Client ), Reason);
1102 IRC_WriteStrChannelPrefix(Client, c, Origin, false, "KICK %s %s :%s",
1103 c->name, Client_ID( Client ), Reason );
1104 if ((Client_Conn(Client) > NONE) &&
1105 (Client_Type(Client) == CLIENT_USER))
1107 IRC_WriteStrClientPrefix(Client, Origin, "KICK %s %s :%s",
1108 c->name, Client_ID( Client ), Reason);
1110 LogDebug("User \"%s\" has been kicked off \"%s\" by \"%s\": %s.",
1111 Client_Mask( Client ), c->name, Client_ID(Origin), Reason);
1114 if (Conf_MorePrivacy)
1118 IRC_WriteStrServersPrefix(Origin, Client, "PART %s :%s", c->name, Reason);
1120 IRC_WriteStrChannelPrefix(Origin, c, Client, false, "PART %s :%s",
1123 if ((Client_Conn(Origin) > NONE) &&
1124 (Client_Type(Origin) == CLIENT_USER))
1126 IRC_WriteStrClientPrefix( Origin, Client, "PART %s :%s", c->name, Reason);
1127 LogDebug("User \"%s\" left channel \"%s\" (%s).",
1128 Client_Mask(Client), c->name, Reason);
1132 /* When channel is empty and is not pre-defined, delete */
1133 if( ! Channel_HasMode( Chan, 'P' ))
1135 if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan );
1139 } /* Remove_Client */
1143 Channel_AddBan(CHANNEL *c, const char *mask, const char *who )
1145 struct list_head *h = Channel_GetListBans(c);
1146 LogDebug("Adding \"%s\" to \"%s\" ban list", mask, Channel_Name(c));
1147 return Lists_Add(h, mask, time(NULL), who, false);
1152 Channel_AddExcept(CHANNEL *c, const char *mask, const char *who )
1154 struct list_head *h = Channel_GetListExcepts(c);
1155 LogDebug("Adding \"%s\" to \"%s\" exception list", mask, Channel_Name(c));
1156 return Lists_Add(h, mask, time(NULL), who, false);
1161 Channel_AddInvite(CHANNEL *c, const char *mask, bool onlyonce, const char *who )
1163 struct list_head *h = Channel_GetListInvites(c);
1164 LogDebug("Adding \"%s\" to \"%s\" invite list", mask, Channel_Name(c));
1165 return Lists_Add(h, mask, time(NULL), who, onlyonce);
1170 ShowChannelList(struct list_head *head, CLIENT *Client, CHANNEL *Channel,
1171 char *msg, char *msg_end)
1173 struct list_elem *e;
1175 assert (Client != NULL);
1176 assert (Channel != NULL);
1178 e = Lists_GetFirst(head);
1180 if (!IRC_WriteStrClient(Client, msg, Client_ID(Client),
1181 Channel_Name(Channel),
1184 Lists_GetValidity(e)))
1185 return DISCONNECTED;
1186 e = Lists_GetNext(e);
1189 return IRC_WriteStrClient(Client, msg_end, Client_ID(Client),
1190 Channel_Name(Channel));
1195 Channel_ShowBans( CLIENT *Client, CHANNEL *Channel )
1197 struct list_head *h;
1199 assert( Channel != NULL );
1201 h = Channel_GetListBans(Channel);
1202 return ShowChannelList(h, Client, Channel, RPL_BANLIST_MSG,
1203 RPL_ENDOFBANLIST_MSG);
1208 Channel_ShowExcepts( CLIENT *Client, CHANNEL *Channel )
1210 struct list_head *h;
1212 assert( Channel != NULL );
1214 h = Channel_GetListExcepts(Channel);
1215 return ShowChannelList(h, Client, Channel, RPL_EXCEPTLIST_MSG,
1216 RPL_ENDOFEXCEPTLIST_MSG);
1221 Channel_ShowInvites( CLIENT *Client, CHANNEL *Channel )
1223 struct list_head *h;
1225 assert( Channel != NULL );
1227 h = Channel_GetListInvites(Channel);
1228 return ShowChannelList(h, Client, Channel, RPL_INVITELIST_MSG,
1229 RPL_ENDOFINVITELIST_MSG);
1234 * Log a message to the local &SERVER channel, if it exists.
1237 Channel_LogServer(const char *msg)
1242 assert(msg != NULL);
1244 sc = Channel_Search("&SERVER");
1248 c = Client_ThisServer();
1249 Channel_Write(sc, c, c, "PRIVMSG", false, msg);
1250 } /* Channel_LogServer */
1254 Channel_CheckKey(CHANNEL *Chan, CLIENT *Client, const char *Key)
1256 char *file_name, line[COMMAND_LEN], *nick, *pass;
1259 assert(Chan != NULL);
1260 assert(Client != NULL);
1261 assert(Key != NULL);
1263 if (!Channel_HasMode(Chan, 'k'))
1267 if (strcmp(Chan->key, Key) == 0)
1270 file_name = array_start(&Chan->keyfile);
1273 fd = fopen(file_name, "r");
1275 Log(LOG_ERR, "Can't open channel key file \"%s\" for %s: %s",
1276 file_name, Chan->name, strerror(errno));
1280 while (fgets(line, (int)sizeof(line), fd) != NULL) {
1282 if (! (nick = strchr(line, ':')))
1285 if (!Match(line, Client_User(Client)))
1287 if (! (pass = strchr(nick, ':')))
1290 if (!Match(nick, Client_ID(Client)))
1292 if (strcmp(Key, pass) != 0)
1300 } /* Channel_CheckKey */
1304 Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan )
1306 return Get_Next_Cl2Chan( My_Cl2Chan, Client, Chan );
1307 } /* Get_First_Cl2Chan */
1311 Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channel )
1315 assert( Client != NULL || Channel != NULL );
1320 if(( Client ) && ( cl2chan->client == Client )) return cl2chan;
1321 if(( Channel ) && ( cl2chan->channel == Channel )) return cl2chan;
1322 cl2chan = cl2chan->next;
1325 } /* Get_Next_Cl2Chan */
1329 * Remove a channel and free all of its data structures.
1332 Delete_Channel(CHANNEL *Chan)
1334 CHANNEL *chan, *last_chan;
1345 assert(chan != NULL);
1349 /* maintain channel list */
1351 last_chan->next = chan->next;
1353 My_Channels = chan->next;
1355 LogDebug("Freed channel structure for \"%s\".", Chan->name);
1357 } /* Delete_Channel */
1361 Set_KeyFile(CHANNEL *Chan, const char *KeyFile)
1365 assert(Chan != NULL);
1366 assert(KeyFile != NULL);
1368 len = strlen(KeyFile);
1369 if (len < array_bytes(&Chan->keyfile)) {
1370 Log(LOG_INFO, "Channel key file of %s removed.", Chan->name);
1371 array_free(&Chan->keyfile);
1377 if (!array_copyb(&Chan->keyfile, KeyFile, len+1))
1379 "Could not set new channel key file \"%s\" for %s: %s",
1380 KeyFile, Chan->name, strerror(errno));
1382 Log(LOG_INFO|LOG_snotice,
1383 "New local channel key file \"%s\" for %s activated.",
1384 KeyFile, Chan->name);