Extended attributes problem with dangling symlinks

[ekalin]

On a normal filesystem, this is what happens when one tries to list attributes in a dangling symlink:

$ ln -s inexistent_file.txt bad_link

$ attr -l bad_link
[No output]

$ attr -l inexistent_file.txt
attr_list: No such file or directory
Could not list "(null)" for inexistent_file.txt

But on an encfs mount, there is an error:

$ ln -s inexistent_file.txt bad_link

$ attr -l bad_link
attr_list: No such file or directory
Could not list "(null)" for bad_link

$ attr -l inexistent_file.txt
attr_list: No such file or directory
Could not list "(null)" for inexistent_file.txt

It seems that instead of calling llistxattr() (which lists xattrs from the link itself), listxattr() (which lists xattrs from the pointed-to file) is called instead. This is an strace from the "attr -l bad_link" command in a normal filesystem:

llistxattr("bad_link", "", 65536) = 0

And here's the strace of the encfs process of the same command in an encfs mount:

listxattr("/tmp/e/cryptstore/tTj5KY7uJx3Uf-PDeR0bIV7b", 0x1f7df80, 65536) = -1 ENOENT (No such file or directory)

[dinoboy197]

I believe I'm seeing a manifestation of the same problem in #283 . @ekalin , can you reproduce my problem in #283?