Function checkBindError

lib/net.js:1230–1248

(err, port, handle)

function checkBindError(err, port, handle) {
  // EADDRINUSE may not be reported until we call listen() or connect().
  // To complicate matters, a failed bind() followed by listen() or connect()
  // will implicitly bind to a random port. Ergo, check that the socket is
  // bound to the expected port before calling listen() or connect().
  //
  // FIXME(bnoordhuis) Doesn't work for pipe handles, they don't have a
  // getsockname() method. Non-issue for now, the cluster module doesn't
  // really support pipes anyway.
  if (err === 0 && port > 0 && handle.getsockname) {
    const out = {};
    err = handle.getsockname(out);
    if (err === 0 && port !== out.port) {
      debug(`checkBindError, bound to ${out.port} instead of ${port}`);
      err = UV_EADDRINUSE;
    }
  }
  return err;
}


function internalConnect(