I've got a script which can be run on Windows and Linux/Unix platforms. One function involves identifying if a directory entry is a dir or a file.

I differentiate with my $attr = POSIX::S_ISDIR($stat[1]) ? FILE_ATTRIBUTE_DIRECTORY : FILE_ATTRIBUTE_NORMAL;

On Win32 this works okay, but when the stat is issued on a Linux platform, the POSIX::S_ISDIR($stat1) does not work correctly.

Numeric return values differ between these two platforms-
On Win32, alimited set of possible return values (2):
16895 for a dir and 33206 for a file.

On Linux, depending on permissions, modes are for example:
16877 for a dir, 33188 for a file

I've been so far unable to fully wrap my head around bit operators, but as far as I understand it, POSIX::S_ISDIR should be able to differentiate between a number of possible values, especially these coming from a Linux filesystem. And not only the limited set of Win32 modes... Right? What am I missing?

In reply to POSIX::S_ISDIR() with $stat->mode values from Windows vs. Linux by isync

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