int send_message_type(int msg_type, struct userNode *dest, struct userNode *src, const char *message, ...);
int send_target_message(int msg_type, const char *dest, struct userNode *src, const char *format, ...);
int send_help(struct userNode *dest, struct userNode *src, struct helpfile *hf, const char *topic);
int send_message_type(int msg_type, struct userNode *dest, struct userNode *src, const char *message, ...);
int send_target_message(int msg_type, const char *dest, struct userNode *src, const char *format, ...);
int send_help(struct userNode *dest, struct userNode *src, struct helpfile *hf, const char *topic);