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Description of problem:
In perl 5.8.0, the IO::Socket implementation is broken such that you cannot set
an undefined timeout to create a blocking socket.  This was broken in an attempt
to allow a 0 second timeout.  Now, if you set an undefined timeout, it sets a 0
second timeout, which means calls to accept() return immediately (in essence, a
non-blocking socket).  The fix is easy.  At http://bugs.perl.org/, bug ID 22965
has the very simple patch to allow both 0-second timeouts and undefined timeouts
to coexist.

I consider this a major bug.  Not being able to turn sockets into blocking
sockets breaks a lot of perl code.

Version-Release number of selected component (if applicable):
perl-5.8.0-88

How reproducible:
Always

Steps to Reproduce:
1. $sock = IO::Socket->new(..., 'Timeout' => 5);
2. $sock->timeout(undef);
3. $sock->accept();
    

Actual Results:  accept() call returns immediately, even if there is nothing to
accept.

Expected Results:  accept() call returns when there is something to accept, and
not before.

Additional info:

bugs.perl.org, #22965