+#elif defined(OPENSSL_SYS_VXWORKS)
+#define get_last_socket_error() errno
+#define clear_socket_error() errno=0
+#define ioctlsocket(a,b,c) ioctl((a),(b),(int)(c))
+#define closesocket(s) close(s)
+#define readsocket(s,b,n) read((s),(b),(n))
+#define writesocket(s,b,n) write((s),(char *)(b),(n))