win32(symlink): fix logic to determine the type of the symlink

On Windows, there are file symlinks and directory symlinks. When trying
to `opendir()` a symlink marked as `file`, it will fail. Even if the
target is a directory. Because it's the wrong symlink type.

To address this, our `symlink()` function calls `stat(target, ...)` to
see whether the target exists and is a directory.

The problem is that this `target` can be a relative path, and the link
path can _also_ be a relative path. Example: `symlink("dir", "uh/oh")`.
In this example, the target might say `dir`, but it is relative to
`uh/oh`, i.e. we need to `stat("uh/dir", ...)`.

This is necessary to pass the `cp` tests because they first create such
a directory symlink and then try to copy it while dereferencing
symlinks, i.e. calling `opendir()` on the symlink.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

0 files changed, 0 insertions, 0 deletions