-int nonblock_readline(read_buffer_t buffer, int fd, cmd_t** cmd_q, client_t* client_lst, int (*cb)(const char*, int, cmd_t**, client_t*))
+int nonblock_readline(read_buffer_t* buffer, int fd, cmd_t** cmd_q, client_t* client_lst, int (*cb)(const char*, int, cmd_t**, client_t*))