anchor.diff:                                           (socket sock)))
                  (setf (state sock) :READ))))))))
   
  -
  -)
  +) ; progn
   
   (defun map-socket-error (sock-err)
     (map-errno-error (sb-bsd-sockets::socket-error-errno sock-err)))
  
positive.code: 
  #+ecl
  (progn
  
    #-:wsock
    (ffi:clines
     "#include <errno.h>"
  
negative.code:       (raise-usock-err (sockint::wsa-get-last-error) socket)))
  
    (defun os-socket-handle (usocket)
      (sockint::fd->handle (sb-bsd-sockets:socket-file-descriptor (socket usocket))))
  
    (defun bytes-available-for-read (socket)
      (sb-alien:with-alien ((int-ptr (* sb-alien:unsigned-long)))
  