+ if (sock == INVALID_SOCKET)
+ {
+ errno = EBADF;
+ return -1;
+ }
+ else
+ {
+ int r = connect (sock, sockaddr, len);
+ if (r < 0)
+ {
+ /* EINPROGRESS is not returned by WinSock 2.0; for backwards
+ compatibility, connect(2) uses EWOULDBLOCK. */
+ if (WSAGetLastError () == WSAEWOULDBLOCK)
+ WSASetLastError (WSAEINPROGRESS);
+
+ set_winsock_errno ();
+ }
+
+ return r;