[PATCH] server: Try to get file name for regular files and dirs in alloc_file_handle().

[Gabriel Ivăncescu]

Hi Paul,

I've sent a patch (multiple times since it hasn't been reviewed, 
unfortunately) for the same bug and, while it didn't add the (trivial) 
tests, I believe it handled some extra corner cases, which you might 
want to add.

See: https://source.winehq.org/patches/data/184165

In particular, I'm concerned what happens with your patch if the file 
itself is either moved, deleted, or refers to something special (like 
bash's pipe:[12345678] for example), since you don't test the resulted 
filename at all—and it might not be the same file.

Also it would be nice to add an implementation with #elif 
defined(F_GETPATH) for other Unix platforms or MacOS (you can look at my 
patch for trivial example, but I haven't tested it).

And lastly we have a bug on bugzilla about it already:

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46070

Thanks,
Gabriel