int is_valid_chan(const char *name);
struct ChanNode* getChanByName(const char *name);
struct ChanNode* addChannel(const char *chan);
+int getChannelCount();
+int getChanUserCount();
void delChannel(struct ChanNode* chan, int freeChan);
void freeChanNode(struct ChanNode* chan);
void checkChannelVisibility(struct ChanNode* chan);