--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/unix/native/libnet/net_util_md.h	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#ifndef NET_UTILS_MD_H
+#define NET_UTILS_MD_H
+
+#include <netdb.h>
+#include <poll.h>
+#include <sys/socket.h>
+
+/************************************************************************
+ * Macros and constants
+ */
+
+#define NET_NSEC_PER_MSEC 1000000
+#define NET_NSEC_PER_SEC  1000000000
+#define NET_NSEC_PER_USEC 1000
+
+/* Defines SO_REUSEPORT */
+#ifndef SO_REUSEPORT
+#ifdef __linux__
+#define SO_REUSEPORT 15
+#elif __solaris__
+#define SO_REUSEPORT 0x100e
+#elif defined(AIX) || defined(MACOSX)
+#define SO_REUSEPORT 0x0200
+#else
+#define SO_REUSEPORT 0
+#endif
+#endif
+
+/*
+ * On 64-bit JDKs we use a much larger stack and heap buffer.
+ */
+#ifdef _LP64
+#define MAX_BUFFER_LEN 65536
+#define MAX_HEAP_BUFFER_LEN 131072
+#else
+#define MAX_BUFFER_LEN 8192
+#define MAX_HEAP_BUFFER_LEN 65536
+#endif
+
+typedef union {
+    struct sockaddr     sa;
+    struct sockaddr_in  sa4;
+    struct sockaddr_in6 sa6;
+} SOCKETADDRESS;
+
+/************************************************************************
+ * Functions
+ */
+
+int NET_Timeout(JNIEnv *env, int s, long timeout, jlong  nanoTimeStamp);
+int NET_Read(int s, void* buf, size_t len);
+int NET_NonBlockingRead(int s, void* buf, size_t len);
+int NET_RecvFrom(int s, void *buf, int len, unsigned int flags,
+                 struct sockaddr *from, socklen_t *fromlen);
+int NET_ReadV(int s, const struct iovec * vector, int count);
+int NET_Send(int s, void *msg, int len, unsigned int flags);
+int NET_SendTo(int s, const void *msg, int len,  unsigned  int
+               flags, const struct sockaddr *to, int tolen);
+int NET_Writev(int s, const struct iovec * vector, int count);
+int NET_Connect(int s, struct sockaddr *addr, int addrlen);
+int NET_Accept(int s, struct sockaddr *addr, socklen_t *addrlen);
+int NET_SocketClose(int s);
+int NET_Dup2(int oldfd, int newfd);
+int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout);
+int NET_SocketAvailable(int s, jint *pbytes);
+
+void NET_ThrowUnknownHostExceptionWithGaiError(JNIEnv *env,
+                                               const char* hostname,
+                                               int gai_error);
+void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name,
+                                  const char *defaultDetail);
+void NET_SetTrafficClass(SOCKETADDRESS *sa, int trafficClass);
+
+#ifdef __linux__
+int kernelIsV24();
+int getDefaultIPv6Interface(struct in6_addr *target_addr);
+#endif
+
+#ifdef __solaris__
+int net_getParam(char *driver, char *param);
+#endif
+
+#endif /* NET_UTILS_MD_H */