int Chan_userJoin(channel_t *ch, client_t *client);
int Chan_userJoin_id(int channelid, client_t *client);
int Chan_userLeave(client_t *client);
int Chan_userJoin(channel_t *ch, client_t *client);
int Chan_userJoin_id(int channelid, client_t *client);
int Chan_userLeave(client_t *client);
channel_t *Chan_iterate(channel_t **channelpptr);
channel_t *Chan_iterate_siblings(channel_t *parent, channel_t **channelpptr);
channel_t *Chan_createChannel(const char *name, const char *desc);
channel_t *Chan_iterate(channel_t **channelpptr);
channel_t *Chan_iterate_siblings(channel_t *parent, channel_t **channelpptr);
channel_t *Chan_createChannel(const char *name, const char *desc);