Spake Ronan Heffernan on Wednesday, June 23, 2004 at 04:53PM -0400:
> Dylan William Hardison wrote:
>
> >>done properly, konq shouldn't know the difference
> >>between ln -s and a real dir.
> >>
> >>
> >
> >Not quite true.
> >
> >Given the layout:
> >
> >% tree
> >.
> >|-- baz -> foo/bar
> >|-- foo
> >| `-- bar
> >`-- test
> >
> >
> >% ls baz/..
> >bar/
> >
> >baz/.. == foo/
> >
> >So, a symlink to a directory isn't quite the same as a directory.
> >
> >Shells and file managers have to jump through hoops to make .. appear to
> >point to the "right" place.
> >
> >
> >If you really want to link a dir, use this:
> >mount --bind olddir newdir
> >
> >
> Actually, no. If I write a C program that calls:
> fopen("baz/myfile.txt","r"); then the symlink is followed automatically
> (the file foo/bar/myfile.txt is opened). I do not have to resolve the
> link target or anything like that. The hierarchy may not be identical,
> but as a container for files, the dereferencing is automatic.
>
Truth, however the '..' entry in a directory doesn't change.
link/.. is target/..'s.
If you never use ..'s, then you have no problems.
for directories, mount --bind is better then a symbolic link.
--
"Everything that can be invented, has been invented."
-- Charles H. Duell, 1899
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