file_new
static int file_new(BIO *h);
.create = file_new,
f->file = file_new(ops, f, ops->name, 1);
struct file *file_new(struct fileops *, void *, char *, unsigned int);
f->file = file_new(&listen_fileops, f, "unix", 1);
f->file = file_new(&listen_fileops, f, "tcp", 1);
p->mio.file = file_new(&port_mio_ops, p, "port", mio_nfds(p->mio.hdl));
d->sio.file = file_new(&dev_sio_ops, d, "dev", sio_nfds(d->sio.hdl));
d->sioctl.file = file_new(&dev_sioctl_ops, d, "mix",
f->file = file_new(&sock_fileops, f, "sock", 1);