src/hash.h

   1 /* hash.h - IRC network state database
   2  * Copyright 2000-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * x3 is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #ifndef HASH_H
  22 #define HASH_H
  23
  24 #include "common.h"
  25 #include "dict.h"
  26 #include "policer.h"
  27
  28 #define MODE_CHANOP             0x00000001 /* +o USER */
  29 #define MODE_VOICE              0x00000002 /* +v USER */
  30 #define MODE_PRIVATE            0x00000004 /* +p */
  31 #define MODE_SECRET             0x00000008 /* +s */
  32 #define MODE_MODERATED          0x00000010 /* +m */
  33 #define MODE_TOPICLIMIT         0x00000020 /* +t */
  34 #define MODE_INVITEONLY         0x00000040 /* +i */
  35 #define MODE_NOPRIVMSGS         0x00000080 /* +n */
  36 #define MODE_KEY                0x00000100 /* +k KEY */
  37 #define MODE_BAN                0x00000200 /* +b BAN */
  38 #define MODE_LIMIT              0x00000400 /* +l LIMIT */
  39 #define MODE_DELAYJOINS         0x00000800 /* +D */
  40 #define MODE_REGONLY            0x00001000 /* ircu +r */
  41 #define MODE_NOCOLORS           0x00002000 /* +c */
  42 #define MODE_NOCTCPS            0x00004000 /* +C */
  43 #define MODE_REGISTERED         0x00008000 /* Bahamut +r */
  44 #define MODE_STRIPCOLOR         0x00010000 /* +S Strip mirc color codes */
  45 #define MODE_MODUNREG           0x00020000 /* +M mod unregister */
  46 #define MODE_NONOTICE           0x00040000 /* +N no notices */
  47 #define MODE_OPERSONLY          0x00080000 /* +O Opers only */
  48 #define MODE_NOQUITMSGS         0x00100000 /* +Q suppress messages from quit notices */
  49 #define MODE_NOAMSG             0x00200000 /* +T no multi-target messages */
  50 #define MODE_SSLONLY            0x00400000 /* +Z ssl only */
  51 #define MODE_HALFOP             0x00800000 /* +h USER */
  52 #define MODE_EXEMPT             0x01000000 /* +e exempt */
  53 #define MODE_HIDEMODE           0x02000000 /* +L hide modes */
  54 #define MODE_APASS              0x04000000 /* +A adminpass */
  55 #define MODE_UPASS              0x08000000 /* +U userpass */
  56 #define MODE_ADMINSONLY         0x10000000 /* +a Admins only */
  57 #define MODE_REMOVE             0x80000000
  58
  59 #define FLAGS_OPER              0x00000001 /* Operator +o */
  60 #define FLAGS_LOCOP             0x00000002 /* Local operator +O */
  61 #define FLAGS_INVISIBLE         0x00000004 /* invisible +i */
  62 #define FLAGS_WALLOP            0x00000008 /* receives wallops +w */
  63 #define FLAGS_DUMMY             0x00000010 /* user is not announced to other servers */
  64 #define FLAGS_DEAF              0x00000020 /* deaf +d */
  65 #define FLAGS_SERVICE           0x00000040 /* cannot be kicked, killed or deoped +k */
  66 #define FLAGS_GLOBAL            0x00000080 /* receives global messages +g */
  67 #define FLAGS_SETHOST           0x00000100 /* sethost +h */
  68 #define FLAGS_PERSISTENT        0x00000200 /* for reserved nicks, this isn't just one-shot */
  69 #define FLAGS_GAGGED            0x00000400 /* for gagged users */
  70 #define FLAGS_AWAY              0x00000800 /* for away users */
  71 #define FLAGS_STAMPED           0x00001000 /* for users who have been stamped */
  72 #define FLAGS_HIDDEN_HOST       0x00002000 /* user's host is masked by their account +x */
  73 #define FLAGS_REGNICK           0x00004000 /* user owns their current nick */
  74 #define FLAGS_REGISTERING       0x00008000 /* user has issued account register command, is waiting for email cookie */
  75 #define FLAGS_BOT               0x00010000 /* Bot +B */
  76 #define FLAGS_HIDECHANS         0x00020000 /* Hidden channels +n */
  77 #define FLAGS_HIDEIDLE          0x00040000 /* Hidden idle time +I */
  78 #define FLAGS_XTRAOP            0x00080000 /* user is XtraOP +X */
  79 #define FLAGS_CLOAKHOST         0x00100000 /* user has cloaked host +C */
  80 #define FLAGS_CLOAKIP           0x00200000 /* user has cloaked ip +c */
  81 #define FLAGS_ADMIN             0x00400000 /* Admin +a */
  82 #define FLAGS_SSL               0x00800000 /* user is using a secure connection +z */
  83 #define FLAGS_PRIVDEAF          0x01000000 /* user is deaf to private messages +D */
  84 #define FLAGS_ACCOUNTONLY       0x02000000 /* user only receives PMs from authed users +R */
  85 #define FLAGS_WHOIS             0x04000000 /* user receives notices when /whois'ed +W */
  86 #define FLAGS_HIDEOPER          0x08000000 /* user is a hidden IRCop +H */
  87 #define FLAGS_NOLINK            0x10000000 /* user has opted out of channel redirection +L */
  88 #define FLAGS_COMMONCHANSONLY   0x20000000 /* user only receives PMs from users on same cahnnels +q */
  89
  90 #define IsOper(x)               ((x)->modes & FLAGS_OPER)
  91 #define IsService(x)            ((x)->modes & FLAGS_SERVICE)
  92 #define IsDeaf(x)               ((x)->modes & FLAGS_DEAF)
  93 #define IsInvisible(x)          ((x)->modes & FLAGS_INVISIBLE)
  94 #define IsGlobal(x)             ((x)->modes & FLAGS_GLOBAL)
  95 #define IsWallOp(x)             ((x)->modes & FLAGS_WALLOP)
  96 #define IsBotM(x)               ((x)->modes & FLAGS_BOT)
  97 #define IsHideChans(x)          ((x)->modes & FLAGS_HIDECHANS)
  98 #define IsHideIdle(x)           ((x)->modes & FLAGS_HIDEIDLE)
  99 #define IsXtraOp(x)             ((x)->modes & FLAGS_XTRAOP)
 100 #define IsSetHost(x)            ((x)->modes & FLAGS_SETHOST)
 101 #define IsGagged(x)             ((x)->modes & FLAGS_GAGGED)
 102 #define IsPersistent(x)         ((x)->modes & FLAGS_PERSISTENT)
 103 #define IsAway(x)               ((x)->modes & FLAGS_AWAY)
 104 #define IsStamped(x)            ((x)->modes & FLAGS_STAMPED)
 105 #define IsHiddenHost(x)         ((x)->modes & FLAGS_HIDDEN_HOST)
 106 #define IsReggedNick(x)         ((x)->modes & FLAGS_REGNICK)
 107 #define IsRegistering(x)        ((x)->modes & FLAGS_REGISTERING)
 108 #define IsDummy(x)              ((x)->modes & FLAGS_DUMMY)
 109 #define IsFakeHost(x)           ((x)->fakehost[0] != '\0')
 110 #define IsLocal(x)              ((x)->uplink == self)
 111 #define IsAdmin(x)              ((x)->modes & FLAGS_ADMIN)
 112 #define IsSSL(x)                ((x)->modes & FLAGS_SSL)
 113 #define IsPrivDeaf(x)           ((x)->modes & FLAGS_PRIVDEAF)
 114 #define IsAccountOnly(x)        ((x)->modes & FLAGS_ACCOUNTONLY)
 115 #define IsWhoisNotice(x)        ((x)->modes & FLAGS_WHOIS)
 116 #define IsHideOper(x)           ((x)->modes & FLAGS_HIDEOPER)
 117 #define IsNoRedirect(x)         ((x)->modes & FLAGS_NOLINK)
 118 #define IsCommonChansOnly(x)    ((x)->modes & FLAGS_COMMONCHANSONLY)
 119
 120 #define NICKLEN         30
 121 #define USERLEN         10
 122 #define HOSTLEN         75
 123 #define SOCKIPLEN       45
 124 #define ACCOUNTLEN      15
 125 #define REALLEN         50
 126 #define TOPICLEN        250
 127 #define CHANNELLEN      200
 128 #define MARKLEN         200
 129 #define MAXOPLEVEL      999
 130
 131 #define MAXMODEPARAMS   6
 132 #define MAXBANS         128
 133 #define MAXEXEMPTS      45
 134
 135 /* IDLEN is 6 because it takes 5.33 Base64 digits to store 32 bytes. */
 136 #define IDLEN           6
 137
 138 /** Operator privileges. */
 139 enum Priv {
 140   PRIV_CHAN_LIMIT,      /**< no channel limit on oper */
 141   PRIV_MODE_LCHAN,      /**< oper can mode local chans */
 142   PRIV_WALK_LCHAN,      /**< oper can walk through local modes */
 143   PRIV_DEOP_LCHAN,      /**< no deop oper on local chans */
 144   PRIV_SHOW_INVIS,      /**< show local invisible users */
 145   PRIV_SHOW_ALL_INVIS,  /**< show all invisible users */
 146   PRIV_UNLIMIT_QUERY,   /**< unlimit who queries */
 147   PRIV_KILL,            /**< oper can KILL */
 148   PRIV_LOCAL_KILL,      /**< oper can local KILL */
 149   PRIV_REHASH,          /**< oper can REHASH */
 150   PRIV_REMOTEREHASH,    /**< oper can remote REHASH */
 151   PRIV_RESTART,         /**< oper can RESTART */
 152   PRIV_DIE,             /**< oper can DIE */
 153   PRIV_ZLINE,           /**< oper can ZLINE */
 154   PRIV_LOCAL_ZLINE,     /**< oper can local ZLINE */
 155   PRIV_GLINE,           /**< oper can GLINE */
 156   PRIV_LOCAL_GLINE,     /**< oper can local GLINE */
 157   PRIV_SHUN,            /**< oper can SHUN */
 158   PRIV_LOCAL_SHUN,      /**< oper can local SHUN */
 159   PRIV_JUPE,            /**< oper can JUPE */
 160   PRIV_LOCAL_JUPE,      /**< oper can local JUPE */
 161   PRIV_OPMODE,          /**< oper can OP/CLEARMODE */
 162   PRIV_LOCAL_OPMODE,    /**< oper can local OP/CLEARMODE */
 163   PRIV_SET,             /**< oper can SET */
 164   PRIV_WHOX,            /**< oper can use /who x */
 165   PRIV_BADCHAN,         /**< oper can BADCHAN */
 166   PRIV_LOCAL_BADCHAN,   /**< oper can local BADCHAN */
 167   PRIV_SEE_CHAN,        /**< oper can see in secret chans */
 168   PRIV_PROPAGATE,       /**< propagate oper status */
 169   PRIV_DISPLAY,         /**< "Is an oper" displayed */
 170   PRIV_DISPLAY_MODE,    /**< oper can set +H hide oper */
 171   PRIV_SEE_OPERS,       /**< display hidden opers */
 172   PRIV_WIDE_GLINE,      /**< oper can set wider G-lines */
 173   PRIV_WIDE_ZLINE,      /**< oper can set wider Z-Lines */
 174   PRIV_WIDE_SHUN,       /**< oper can set wider G-lines */
 175   PRIV_LIST_CHAN,       /**< oper can list secret channels */
 176   PRIV_FORCE_OPMODE,    /**< can hack modes on quarantined channels */
 177   PRIV_FORCE_LOCAL_OPMODE, /**< can hack modes on quarantined local channels */
 178   PRIV_CHECK,           /**< oper can use CHECK */
 179   PRIV_SEE_SECRET_CHAN, /**< oper can see +s channels in whois */
 180   PRIV_WHOIS_NOTICE,    /**< oper can set/unset user mode +W */
 181   PRIV_HIDE_IDLE,       /**< oper can set/unset user mode +I */
 182   PRIV_XTRAOP,          /**< oper can set/unset user mode +X */
 183   PRIV_HIDE_CHANNELS,   /**< oper can set/unset user mode +n */
 184   PRIV_FREEFORM,        /**< oper can set any host on themseves using set host
 185                               as long as its a valid host */
 186   PRIV_REMOVE,          /**< oper can force remove deactivated glines,
 187                              shuns and zlines. */
 188   PRIV_SPAMFILTER,      /**< oper can set spamfilters via SPAMFILTER */
 189   PRIV_LAST_PRIV        /**< number of privileges */
 190 };
 191
 192 /** Number of bits */
 193 #define _PRIV_NBITS             (8 * sizeof(unsigned long))
 194 /** Element number for priv \a priv. */
 195 #define _PRIV_IDX(priv)         ((priv) / _PRIV_NBITS)
 196 /** Element bit for priv \a priv. */
 197 #define _PRIV_BIT(priv)         (1UL << ((priv) % _PRIV_NBITS))
 198
 199 /** Operator privileges. */
 200 struct Privs {
 201   unsigned long priv_mask[(PRIV_LAST_PRIV + _PRIV_NBITS - 1) / _PRIV_NBITS];
 202 };
 203
 204 DECLARE_LIST(userList, struct userNode*);
 205 DECLARE_LIST(modeList, struct modeNode*);
 206 DECLARE_LIST(banList, struct banNode*);
 207 DECLARE_LIST(exemptList, struct exemptNode*);
 208 DECLARE_LIST(channelList, struct chanNode*);
 209 DECLARE_LIST(serverList, struct server*);
 210
 211 struct userNode {
 212     char *nick;                   /* Unique name of the client, nick or host */
 213     char ident[USERLEN + 1];      /* Per-host identification for user */
 214     char info[REALLEN + 1];       /* Free form additional client information */
 215     char hostname[HOSTLEN + 1];   /* DNS name or IP address */
 216     char fakehost[HOSTLEN + 1];   /* Assigned fake host */
 217     char crypthost[HOSTLEN + 30]; /* Crypted hostname */
 218     char cryptip[SOCKIPLEN + 30]; /* Crypted IP */
 219 #ifdef WITH_PROTOCOL_P10
 220     char numeric[COMBO_NUMERIC_LEN+1];
 221     unsigned int num_local : 18;
 222 #endif
 223     unsigned int loc;             /* Is user connecting via LOC? */
 224     unsigned int no_notice;       /* Does the users client not see notices? */
 225     unsigned int dead : 1;        /* Is user waiting to be recycled? */
 226     irc_in_addr_t ip;             /* User's IP address */
 227     long modes;                   /* user flags +isw etc... */
 228
 229     // sethost - reed/apples
 230     char sethost[USERLEN + HOSTLEN + 2]; /* 1 for '\0' and 1 for @ = 2 */
 231
 232     /* GeoIP Data */
 233     char *country_name;
 234
 235     /* GeoIP City Data */
 236     char *country_code;
 237     char *city;
 238     char *region;
 239     char *postal_code;
 240     float latitude;
 241     float longitude;
 242     int dma_code;
 243     int area_code;
 244
 245     char *mark;                   /* only filled if they are marked */
 246     char *version_reply;          /* only filled in if a version query was triggered */
 247     char *sslfp;                  /* only filled in if a mark SSLCLIFP is received */
 248
 249     time_t timestamp;             /* Time of last nick change */
 250     time_t idle_since;
 251     struct server *uplink;        /* Server that user is connected to */
 252     struct modeList channels;     /* Vector of channels user is in */
 253     struct Privs   privs;
 254
 255     /* from nickserv */
 256     struct handle_info *handle_info;
 257     struct userNode *next_authed;
 258     struct policer auth_policer;
 259 };
 260
 261 #define privs(cli)             ((cli)->privs)
 262 #define PrivSet(pset, priv)     ((pset)->priv_mask[_PRIV_IDX(priv)] |= \
 263                                  _PRIV_BIT(priv))
 264 #define PrivClr(pset, priv)     ((pset)->priv_mask[_PRIV_IDX(priv)] &= \
 265                                  ~(_PRIV_BIT(priv)))
 266 #define PrivHas(pset, priv)     ((pset)->priv_mask[_PRIV_IDX(priv)] & \
 267                                  _PRIV_BIT(priv))
 268
 269 #define PRIV_ADD 1
 270 #define PRIV_DEL 0
 271
 272 #define GrantPriv(cli, priv)    (PrivSet(&(privs(cli)), priv))
 273 #define RevokePriv(cli, priv)   (PrivClr(&(privs(cli)), priv))
 274 #define HasPriv(cli, priv)      (PrivHas(&(privs(cli)), priv))
 275
 276 struct chanNode {
 277     chan_mode_t modes;
 278     unsigned int limit, locks;
 279     char key[KEYLEN + 1];
 280     char upass[KEYLEN + 1];
 281     char apass[KEYLEN + 1];
 282     time_t timestamp; /* creation time */
 283
 284     char topic[TOPICLEN + 1];
 285     char topic_nick[NICKLEN + 1];
 286     time_t topic_time;
 287
 288     struct modeList members;
 289     struct banList banlist;
 290     struct exemptList exemptlist;
 291     struct policer join_policer;
 292     unsigned int join_flooded : 1;
 293     unsigned int bad_channel : 1;
 294
 295     struct chanData *channel_info;
 296     struct channel_help *channel_help;
 297     char name[1];
 298 };
 299
 300 struct banNode {
 301     char ban[NICKLEN + USERLEN + HOSTLEN + 3]; /* 1 for '\0', 1 for ! and 1 for @ = 3 */
 302     char who[NICKLEN + 1]; /* who set ban */
 303     time_t set; /* time ban was set */
 304 };
 305
 306 struct exemptNode {
 307     char exempt[NICKLEN + USERLEN + HOSTLEN + 3]; /* 1 for '\0', 1 for ! and 1 for @ = 3 */
 308     char who[NICKLEN + 1]; /* who set exempt */
 309     time_t set; /* time exempt was set */
 310 };
 311
 312 struct modeNode {
 313     struct chanNode *channel;
 314     struct userNode *user;
 315     long modes;
 316     short oplevel;
 317     time_t idle_since;
 318 };
 319
 320 #define SERVERNAMEMAX 64
 321 #define SERVERDESCRIPTMAX 128
 322
 323 struct server {
 324     char name[SERVERNAMEMAX+1];
 325     time_t boot;
 326     time_t link_time;
 327     char description[SERVERDESCRIPTMAX+1];
 328 #ifdef WITH_PROTOCOL_P10
 329     char numeric[COMBO_NUMERIC_LEN+1];
 330     unsigned int num_mask;
 331 #endif
 332     unsigned int hops, clients, max_clients;
 333     unsigned int burst : 1, self_burst : 1;
 334     struct server *uplink;
 335 #ifdef WITH_PROTOCOL_P10
 336     struct userNode **users; /* flat indexed by numeric */
 337 #else
 338     dict_t users; /* indexed by nick */
 339 #endif
 340     struct serverList children;
 341 };
 342
 343 struct waitingConnection {
 344     char *server;
 345     char *target;
 346 };
 347
 348 struct routingPlan {
 349     dict_t servers;
 350 };
 351
 352 struct routingPlanServer {
 353     char *uplink;
 354     char *secondaryuplink;
 355     unsigned int port;
 356     int karma;
 357     int offline;
 358 };
 359
 360 /* Ported from X2 */
 361 struct routeList {
 362     char* server;              /* Name of the server */
 363     unsigned int   port;       /* connection port */
 364     char *uplink;              /* Server its linked to (towards us) */
 365     char *secondaryuplink;
 366     int outsideness;           /* 0 means leaf, 1 second layer, etc. my uplink is highest */
 367     struct routeList *next;
 368 };
 369
 370 /* Ported from X2 */
 371 struct route {
 372     int count;                 /* how many servers we have */
 373     int maxdepth;              /* biggest outsideness value */
 374     int centered;              /* set to TRUE when changerouteUplinks is run */
 375     struct routeList *servers;
 376 };
 377
 378
 379 extern struct server *self;
 380 extern dict_t channels;
 381 extern dict_t clients;
 382 extern dict_t servers;
 383 extern unsigned int max_clients, invis_clients;
 384 extern time_t max_clients_time;
 385 extern struct userList curr_opers, curr_helpers;
 386
 387 struct server* GetServerH(const char *name); /* using full name */
 388 struct userNode* GetUserH(const char *nick);   /* using nick */
 389 struct chanNode* GetChannel(const char *name);
 390 struct modeNode* GetUserMode(struct chanNode* channel, struct userNode* user);
 391 int userList_contains(struct userList *list, struct userNode *user);
 392 unsigned int IsUserP(struct userNode *user);
 393
 394 typedef int (*server_link_func_t) (struct server *server, void *extra);
 395 void reg_server_link_func(server_link_func_t handler, void *extra);
 396 void call_server_link_funcs(struct server *server);
 397
 398 typedef void (*sasl_input_func_t) (struct server* source ,const char *identifier, const char *subcmd, const char *data, const char *ext, void *extra);
 399 void reg_sasl_input_func(sasl_input_func_t handler, void *extra);
 400 void call_sasl_input_func(struct server* source ,const char *identifier, const char *subcmd, const char *data, const char *ext);
 401 void unreg_sasl_input_func(sasl_input_func_t handler, void *extra);
 402
 403 typedef int (*new_user_func_t) (struct userNode *user, void *extra);
 404 void reg_new_user_func(new_user_func_t handler, void *extra);
 405 void call_new_user_funcs(struct userNode *user);
 406 typedef void (*del_user_func_t) (struct userNode *user, struct userNode *killer, const char *why, void *extra);
 407 void reg_del_user_func(del_user_func_t handler, void *extra);
 408 void call_del_user_funcs(struct userNode *user, struct userNode *killer, const char *why);
 409 void unreg_del_user_func(del_user_func_t handler, void *extra);
 410 void ReintroduceUser(struct userNode* user);
 411 typedef void (*nick_change_func_t)(struct userNode *user, const char *old_nick, void *extra);
 412 void reg_nick_change_func(nick_change_func_t handler, void *extra);
 413 void NickChange(struct userNode* user, const char *new_nick, int no_announce);
 414 void SVSNickChange(struct userNode* user, const char *new_nick);
 415
 416 typedef void (*account_func_t) (struct userNode *user, const char *stamp);
 417 void reg_account_func(account_func_t handler);
 418 void call_account_func(struct userNode *user, const char *stamp);
 419 void StampUser(struct userNode *user, const char *stamp, time_t timestamp);
 420 void assign_fakehost(struct userNode *user, const char *host, int announce);
 421 void set_geoip_info(struct userNode *user);
 422
 423 typedef void (*new_channel_func_t) (struct chanNode *chan, void *extra);
 424 void reg_new_channel_func(new_channel_func_t handler, void *extra);
 425 typedef int (*join_func_t) (struct modeNode *mNode, void *extra);
 426 void reg_join_func(join_func_t handler, void *extra);
 427 typedef void (*del_channel_func_t) (struct chanNode *chan, void *extra);
 428 void reg_del_channel_func(del_channel_func_t handler, void *extra);
 429
 430 struct chanNode* AddChannel(const char *name, time_t time_, const char *modes, char *banlist, char *exemptlist);
 431 void LockChannel(struct chanNode *channel);
 432 void UnlockChannel(struct chanNode *channel);
 433
 434 struct modeNode* AddChannelUser(struct userNode* user, struct chanNode* channel);
 435
 436 typedef void (*part_func_t) (struct modeNode *mn, const char *reason, void *extra);
 437 void reg_part_func(part_func_t handler, void *extra);
 438 void unreg_part_func(part_func_t handler, void *extra);
 439 void DelChannelUser(struct userNode* user, struct chanNode* channel, const char *reason, int deleting);
 440 void KickChannelUser(struct userNode* target, struct chanNode* channel, struct userNode *kicker, const char *why);
 441
 442 typedef void (*kick_func_t) (struct userNode *kicker, struct userNode *user, struct chanNode *chan, void *extra);
 443 void reg_kick_func(kick_func_t handler, void *extra);
 444 void ChannelUserKicked(struct userNode* kicker, struct userNode* victim, struct chanNode* channel);
 445
 446 int ChannelBanExists(struct chanNode *channel, const char *ban);
 447 int ChannelExemptExists(struct chanNode *channel, const char *exempt);
 448
 449 typedef int (*topic_func_t)(struct userNode *who, struct chanNode *chan, const char *old_topic, void *extra);
 450 void reg_topic_func(topic_func_t handler, void *extra);
 451 void SetChannelTopic(struct chanNode *channel, struct userNode *service, struct userNode *user, const char *topic, int announce);
 452 struct userNode *IsInChannel(struct chanNode *channel, struct userNode *user);
 453
 454 void init_structs(void);
 455
 456 #endif