Your program (and your complete 'overkill' solution) led me to finding the solution -- as I took you overkill solution and stripped out the C and converted it to perl...and that finally hilighted what was wrong with my original program. the problem is nothing to do with a "problem with STDOUT" --- it's the **result** word ". Changing the line:
my $winsize=0;
to
my $winsize=' ' x 8;
Solves the problem. It works. ( " ' 'x 8 " =~= your " \0 x 8 " )

At this point, the problem is clear. ioctl doesnt' allocate space for the return value -- it expects the space to already be there. The 'Bad address' error message that comes back is a reference to my having given ioctl a bad-address for the result buffer.

Once I give it the needed space (for 4 'shorts') -- it's happy!

ARGGGG!!!! I've been programming in Perl for too long and forgotten my "C" basics...

So *thank you* 'tchrist', for writing your example with *correct code*, that allowed me to find the difference between working and not, and also, thank-you for answering the question I was asking rather than trying to get me to use 'something else'.

In reply to Re^2: Don't understand why can't get 'size' assoc w/STDOUT by perl-diddler
in thread Don't understand why can't get 'size' assoc w/STDOUT by perl-diddler

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