err = __dir_mkfile (dir, O_WRITE, mode & ~S_IFMT & _hurd_umask, &node);
err = __dir_mkfile (dir, O_WRITE, (mode & ~S_IFMT) & ~_hurd_umask, &node);
__xmknod (int vers, const char *file_name, mode_t mode, dev_t *dev){  error_t err;  file_t dir, node;  char *name;  char buf[100], *bp;  const char *translator;  size_t len;  if (vers != _MKNOD_VER)    return __hurd_fail (EINVAL);  if (S_ISCHR (mode))    {      translator = _HURD_CHRDEV;      len = sizeof (_HURD_CHRDEV);    }  else if (S_ISBLK (mode))    {      translator = _HURD_BLKDEV;      len = sizeof (_HURD_BLKDEV);    }  else if (S_ISFIFO (mode))    {      translator = _HURD_FIFO;      len = sizeof (_HURD_FIFO);    }  else    {      errno = EINVAL;      return -1;    }  if (! S_ISFIFO (mode))    {      /* We set the translator to "ifmt\0major\0minor\0", where IFMT	 depends on the S_IFMT bits of our MODE argument, and MAJOR and	 MINOR are ASCII decimal (octal or hex would do as well)	 representations of our arguments.  Thus the convention is that	 CHRDEV and BLKDEV translators are invoked with two non-switch	 arguments, giving the major and minor device numbers in %i format. */      bp = buf + sizeof (buf);      *--bp = '\0';      bp = _itoa (minor (*dev), bp, 10, 0);      *--bp = '\0';      bp = _itoa (major (*dev), bp, 10, 0);      memcpy (bp - len, translator, len);      translator = bp - len;      len = buf + sizeof (buf) - translator;    }  dir = __file_name_split (file_name, &name);  if (dir == MACH_PORT_NULL)    return -1;  /* Create a new, unlinked node in the target directory.  */  err = __dir_mkfile (dir, O_WRITE, mode & ~S_IFMT & _hurd_umask, &node);  if (! err)    /* Set the node's translator to make it a device.  */    err = __file_set_translator (node,				 FS_TRANS_EXCL | FS_TRANS_SET,				 FS_TRANS_EXCL | FS_TRANS_SET, 0,				 translator, len,				 MACH_PORT_NULL, MACH_MSG_TYPE_COPY_SEND);  if (! err)    /* Link the node, now a valid device, into the target directory.  */    err = __dir_link (dir, node, name);  __mach_port_deallocate (__mach_task_self (), dir);  __mach_port_deallocate (__mach_task_self (), node);  if (err)    return __hurd_fail (err);  return 0;}