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construct/include/channel.h

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/*
* ircd-ratbox: A slightly useful ircd.
* channel.h: The ircd channel header.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2004 ircd-ratbox development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id: channel.h 3580 2007-11-07 23:45:14Z jilles $
*/
#ifndef INCLUDED_channel_h
#define INCLUDED_channel_h
#define MODEBUFLEN 200
/* Maximum mode changes allowed per client, per server is different */
#define MAXMODEPARAMS 4
#define MAXMODEPARAMSSERV 10
struct Client;
/* mode structure for channels */
struct Mode
{
unsigned int mode;
int limit;
char key[KEYLEN];
unsigned int join_num;
unsigned int join_time;
char forward[LOC_CHANNELLEN + 1];
};
/* channel structure */
struct Channel
{
rb_dlink_node node;
struct Mode mode;
char *mode_lock;
char *topic;
char *topic_info;
time_t topic_time;
time_t last_knock; /* don't allow knock to flood */
rb_dlink_list members; /* channel members */
rb_dlink_list locmembers; /* local channel members */
rb_dlink_list invites;
rb_dlink_list banlist;
rb_dlink_list exceptlist;
rb_dlink_list invexlist;
rb_dlink_list quietlist;
time_t first_received_message_time; /* channel flood control */
int received_number_of_privmsgs;
int flood_noticed;
unsigned int join_count; /* joins within delta */
unsigned int join_delta; /* last ts of join */
unsigned long bants;
time_t channelts;
char *chname;
struct Client *last_checked_client;
time_t last_checked_ts;
unsigned int last_checked_type;
int last_checked_result;
};
struct membership
{
rb_dlink_node channode;
rb_dlink_node locchannode;
rb_dlink_node usernode;
struct Channel *chptr;
struct Client *client_p;
unsigned int flags;
unsigned long bants;
};
#define BANLEN 195
struct Ban
{
char *banstr;
char *who;
time_t when;
char *forward;
rb_dlink_node node;
};
struct mode_letter
{
int mode;
char letter;
};
struct ChModeChange
{
char letter;
const char *arg;
const char *id;
int dir;
int mems;
};
typedef void (*ChannelModeFunc)(struct Client *source_p, struct Channel *chptr,
int alevel, int parc, int *parn,
const char **parv, int *errors, int dir, char c, long mode_type);
struct ChannelMode
{
ChannelModeFunc set_func;
long mode_type;
};
typedef int (*ExtbanFunc)(const char *data, struct Client *client_p,
struct Channel *chptr, long mode_type);
/* can_send results */
#define CAN_SEND_NO 0
#define CAN_SEND_NONOP 1
#define CAN_SEND_OPV 2
/* channel status flags */
#define CHFL_PEON 0x0000 /* normal member of channel */
#define CHFL_VOICE 0x0001 /* the power to speak */
#define CHFL_CHANOP 0x0002 /* Channel operator */
#define CHFL_BANNED 0x0008 /* cached as banned */
#define CHFL_QUIETED 0x0010 /* cached as being +q victim */
#define ONLY_SERVERS 0x0020
#define ONLY_OPERS 0x0040
#define ALL_MEMBERS CHFL_PEON
#define ONLY_CHANOPS CHFL_CHANOP
#define ONLY_CHANOPSVOICED (CHFL_CHANOP|CHFL_VOICE)
#define is_chanop(x) ((x) && (x)->flags & CHFL_CHANOP)
#define is_voiced(x) ((x) && (x)->flags & CHFL_VOICE)
#define is_chanop_voiced(x) ((x) && (x)->flags & (CHFL_CHANOP|CHFL_VOICE))
#define can_send_banned(x) ((x) && (x)->flags & (CHFL_BANNED|CHFL_QUIETED))
/* channel modes ONLY */
#define MODE_PRIVATE 0x0001
#define MODE_SECRET 0x0002
#define MODE_MODERATED 0x0004
#define MODE_TOPICLIMIT 0x0008
#define MODE_INVITEONLY 0x0010
#define MODE_NOPRIVMSGS 0x0020
#define MODE_REGONLY 0x0040
#define MODE_EXLIMIT 0x0100 /* exempt from list limits, +b/+e/+I/+q */
#define MODE_PERMANENT 0x0200 /* permanant channel, +P */
#define MODE_OPMODERATE 0x0400 /* send rejected messages to ops */
#define MODE_FREEINVITE 0x0800 /* allow free use of /invite */
#define MODE_FREETARGET 0x1000 /* can be forwarded to without authorization */
#define MODE_DISFORWARD 0x2000 /* disable channel forwarding */
#define CHFL_BAN 0x10000000 /* ban channel flag */
#define CHFL_EXCEPTION 0x20000000 /* exception to ban channel flag */
#define CHFL_INVEX 0x40000000
#define CHFL_QUIET 0x80000000
/* mode flags for direction indication */
#define MODE_QUERY 0
#define MODE_ADD 1
#define MODE_DEL -1
#define SecretChannel(x) ((x) && ((x)->mode.mode & MODE_SECRET))
#define HiddenChannel(x) ((x) && ((x)->mode.mode & MODE_PRIVATE))
#define PubChannel(x) ((!x) || ((x)->mode.mode &\
(MODE_PRIVATE | MODE_SECRET)) == 0)
/* channel visible */
#define ShowChannel(v,c) (PubChannel(c) || IsMember((v),(c)))
#define IsMember(who, chan) ((who && who->user && \
find_channel_membership(chan, who)) ? 1 : 0)
#define IsChannelName(name) ((name) && (*(name) == '#' || *(name) == '&'))
/* extban function results */
#define EXTBAN_INVALID -1 /* invalid mask, false even if negated */
#define EXTBAN_NOMATCH 0 /* valid mask, no match */
#define EXTBAN_MATCH 1 /* matches */
extern rb_dlink_list global_channel_list;
void init_channels(void);
struct Channel *allocate_channel(const char *chname);
void free_channel(struct Channel *chptr);
struct Ban *allocate_ban(const char *, const char *, const char *);
void free_ban(struct Ban *bptr);
extern void destroy_channel(struct Channel *);
extern int can_send(struct Channel *chptr, struct Client *who,
struct membership *);
extern int flood_attack_channel(int p_or_n, struct Client *source_p,
struct Channel *chptr, char *chname);
extern int is_banned(struct Channel *chptr, struct Client *who,
struct membership *msptr, const char *, const char *, const char **);
extern int is_quieted(struct Channel *chptr, struct Client *who,
struct membership *msptr, const char *, const char *);
extern int can_join(struct Client *source_p, struct Channel *chptr,
const char *key, const char **forward);
extern struct membership *find_channel_membership(struct Channel *, struct Client *);
extern const char *find_channel_status(struct membership *msptr, int combine);
extern void add_user_to_channel(struct Channel *, struct Client *, int flags);
extern void remove_user_from_channel(struct membership *);
extern void remove_user_from_channels(struct Client *);
extern void invalidate_bancache_user(struct Client *);
extern void free_channel_list(rb_dlink_list *);
extern int check_channel_name(const char *name);
extern void channel_member_names(struct Channel *chptr, struct Client *,
int show_eon);
extern void del_invite(struct Channel *chptr, struct Client *who);
const char *channel_modes(struct Channel *chptr, struct Client *who);
extern struct Channel *find_bannickchange_channel(struct Client *client_p);
extern void check_spambot_warning(struct Client *source_p, const char *name);
extern void check_splitmode(void *);
void set_channel_topic(struct Channel *chptr, const char *topic,
const char *topic_info, time_t topicts);
extern void init_chcap_usage_counts(void);
extern void set_chcap_usage_counts(struct Client *serv_p);
extern void unset_chcap_usage_counts(struct Client *serv_p);
extern void send_cap_mode_changes(struct Client *client_p, struct Client *source_p,
struct Channel *chptr, struct ChModeChange foo[], int);
void resv_chan_forcepart(const char *name, const char *reason, int temp_time);
extern void set_channel_mode(struct Client *client_p, struct Client *source_p,
struct Channel *chptr, struct membership *msptr, int parc, const char *parv[]);
extern void set_channel_mlock(struct Client *client_p, struct Client *source_p,
struct Channel *chptr, const char *newmlock, int propagate);
extern struct ChannelMode chmode_table[256];
extern int add_id(struct Client *source_p, struct Channel *chptr, const char *banid,
const char *forward, rb_dlink_list * list, long mode_type);
extern struct Ban * del_id(struct Channel *chptr, const char *banid, rb_dlink_list * list,
long mode_type);
extern ExtbanFunc extban_table[256];
extern int match_extban(const char *banstr, struct Client *client_p, struct Channel *chptr, long mode_type);
extern int valid_extban(const char *banstr, struct Client *client_p, struct Channel *chptr, long mode_type);
const char * get_extban_string(void);
extern int get_channel_access(struct Client *source_p, struct Channel *chptr, struct membership *msptr, int dir, const char *modestr);
extern void send_channel_join(struct Channel *chptr, struct Client *client_p);
#endif /* INCLUDED_channel_h */
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