Re: OT: why no file copy() libc/syscall ??

[Ihar 'Philips' Filipau]

Florian Weimer wrote:
> Andreas Dilger wrote:
>
>
> > > This is fast turning into a creeping horror of aggregation.  I defy anybody
> > > to create an API to cover all the options mentioned so far and *not* have it
> > > look like the process_clone horror we so roundly derided a few weeks ago.
> >
> > 	int sys_copy(int fd_src, int fd_dst)
>
>
> Doesn't work.  You have to set the security attributes while you open
> fd_dst.

  int new_fd = sys_copy( int src_fd );  /* cloned copy, out of any fs */
  fchmod( new_fd, XXX_WHAT_EVER );      /* do the job. */
  ...
  flink(new_fd, "/some/path/some/file/name"); /* commit to fs */
  close(new_fd);  /* bye-bye */

  I beleive this can be more useful. Not only in naive tries to replace 
cp(1) with kernel ;-)

--
Ihar 'Philips' Filipau  / with best regards from Saarbruecken.
--                                                           _ _ _
 "... and for $64000 question, could you get yourself       |_|*|_|
   vaguely familiar with the notion of on-topic posting?"   |_|_|*|
                                -- Al Viro @ LKML           |*|*|*|

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