_file_set
extern int _file_set(FILE *, int, const char *);
} else if (_file_set(iop, fd, type) != 0) {
} else if (_file_set(iop, fd, type) != 0) {
extern int _file_set(FILE *, int, const char *);
} else if (_file_set(iop, fd, mode) != 0) {