+#ifdef EDESTADDRREQ
+ case EDESTADDRREQ: result = WSAEDESTADDRREQ; break;
+#endif
+#ifdef EHOSTDOWN
+ case EHOSTDOWN: result = WSAEHOSTDOWN; break;
+#endif
+#ifdef ENETDOWN
+ case ENETDOWN: result = WSAENETDOWN; break;
+#endif
+ case ENODEV: result = WSAENETDOWN; break;