[MacPorts] #44110: coreutils @8.22_0 - ln fails to create symbolic links if source and target differ in character case only (and creates hidden hardlinks instead)

[MacPorts]

#44110: coreutils @8.22_0 - ln fails to create symbolic links if source and target
differ in character case only (and creates hidden hardlinks instead)
-------------------------+--------------------------------
 Reporter:  scubi@…      |      Owner:  macports-tickets@…
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.0
 Keywords:  ln, symlink  |       Port:  coreutils
-------------------------+--------------------------------
 `/opt/local/libexec/gnubin/ln` fails to create a symbolic link if the name
 of the target and the directory differ only in character case. In that
 case a symbolic link is created below the source directory and you end up
 with a **hidden** hardlink if the newly created symlink is deleted!

 The behavior can be reproduced by following these steps:

 * create a directory `Foo` and try to create a symbolic link to that
 directory called `foo`
 * delete the wrongly placed symlink `Foo/foo`
 * list the directory `Foo` was created in
 * list the content of `Foo` as well as `foo` !!!!!!!!
 * list the inodes of `Foo` and the **hidden** `foo`

 {{{
 indigo:gnu-ln-test scubi$ ls -al
 insgesamt 0
 drwxr-xr-x   2 scubi staff   68 22. Jun 15:07 .
 drwxr-xr-x+ 36 scubi staff 1224 22. Jun 14:51 ..

 indigo:gnu-ln-test scubi$ mkdir Foo

 indigo:gnu-ln-test scubi$ ls -al
 insgesamt 0
 drwxr-xr-x   3 scubi staff  102 22. Jun 15:12 .
 drwxr-xr-x+ 36 scubi staff 1224 22. Jun 14:51 ..
 drwxr-xr-x   2 scubi staff   68 22. Jun 15:12 Foo

 indigo:gnu-ln-test scubi$ ln -s Foo/ foo

 indigo:gnu-ln-test scubi$ ls -al
 insgesamt 0
 drwxr-xr-x   3 scubi staff  102 22. Jun 15:12 .
 drwxr-xr-x+ 36 scubi staff 1224 22. Jun 14:51 ..
 drwxr-xr-x   3 scubi staff  102 22. Jun 15:13 Foo

 indigo:gnu-ln-test scubi$ ls -al Foo/
 insgesamt 4
 drwxr-xr-x 3 scubi staff 102 22. Jun 15:13 .
 drwxr-xr-x 3 scubi staff 102 22. Jun 15:12 ..
 lrwxr-xr-x 1 scubi staff   4 22. Jun 15:13 Foo -> Foo/

 indigo:gnu-ln-test scubi$ rm Foo/Foo

 indigo:gnu-ln-test scubi$ ls -al Foo/
 insgesamt 0
 drwxr-xr-x 2 scubi staff  68 22. Jun 15:13 .
 drwxr-xr-x 3 scubi staff 102 22. Jun 15:12 ..

 indigo:gnu-ln-test scubi$ ls -al
 insgesamt 0
 drwxr-xr-x   3 scubi staff  102 22. Jun 15:12 .
 drwxr-xr-x+ 36 scubi staff 1224 22. Jun 14:51 ..
 drwxr-xr-x   2 scubi staff   68 22. Jun 15:13 Foo

 indigo:gnu-ln-test scubi$ ls -al Foo foo
 Foo:
 insgesamt 0
 drwxr-xr-x 2 scubi staff  68 22. Jun 15:13 .
 drwxr-xr-x 3 scubi staff 102 22. Jun 15:12 ..

 foo:
 insgesamt 0
 drwxr-xr-x 2 scubi staff  68 22. Jun 15:13 .
 drwxr-xr-x 3 scubi staff 102 22. Jun 15:12 ..

 indigo:gnu-ln-test scubi$ ls -ldi Foo/ foo
 2028539 drwxr-xr-x 2 scubi staff 68 22. Jun 15:13 Foo/
 2028539 drwxr-xr-x 2 scubi staff 68 22. Jun 15:13 foo

 indigo:gnu-ln-test scubi$
 }}}

 Due to the fact that this sounds unbelievable - I also attached a
 screenshot :)

 BTW: creating the symlink with a different name works as expected:
 {{{
 indigo:gnu-ln-test scubi$ ln -s Foo/ boo

 indigo:gnu-ln-test scubi$ ls -al
 insgesamt 4
 drwxr-xr-x   4 scubi staff  136 22. Jun 15:25 .
 drwxr-xr-x+ 36 scubi staff 1224 22. Jun 14:51 ..
 drwxr-xr-x   2 scubi staff   68 22. Jun 15:13 Foo
 lrwxr-xr-x   1 scubi staff    4 22. Jun 15:25 boo -> Foo/

 indigo:gnu-ln-test scubi$
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/44110>
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