* reader = io_new_conn(NULL, fromchild[0], read_in, &from);
* io_set_finish(reader, finish, &from);
* io_new_conn(NULL, STDOUT_FILENO, write_out, &from);
* reader = io_new_conn(NULL, fromchild[0], read_in, &from);
* io_set_finish(reader, finish, &from);
* io_new_conn(NULL, STDOUT_FILENO, write_out, &from);