RE: socket api question - is it possible for recv() to receive 0byte from server?

3) Even if Jon wrote the quote below I think he is wrong for 

recommending it. My view is the same as Scott's on this one.

Well I did write some of that section - not sure if that precise but was me
and I agree it is "wrong" but ...

At the time we had encountered a number of problems using errno when calling
C functions from within RPG IV code.  It appeared that sometimes the errno
value that resulted from a previous failed function was not being cleared
and was being misdiagnosed as a failure in the current function.  (e.g. When
doing a read operation, the value of errno might indicate that the open
failed!)  We consulted the C compiler team who were unable to determine the
cause of the errors.  Their recommendation at the time was to zero errno
prior to the call to the function.  

Whatever caused the original problem seems to have vanished over the years.
Code that exhibited the failure at the time we wrote the book worked just
fine on later releases.  The book just wasn't updated.

Jon Paris
Partner400

www.Partner400.com