int mix_send_message(string_list_t *, const char *);
int mix_check_message(HEADER * msg);
void mix_make_chain(string_list_t **, int *);
int mix_send_message(string_list_t *, const char *);
int mix_check_message(HEADER * msg);
void mix_make_chain(string_list_t **, int *);