1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "jni.h"
18 #include <sys/socket.h>
19 
20 // Convert from sockaddr_storage to Inet4Address (AF_INET) or Inet6Address (AF_INET6).
21 // If 'port' is non-NULL and the address family includes a notion
22 // of port number, *port will be set to the port number.
23 jobject sockaddrToInetAddress(JNIEnv* env, const sockaddr_storage& ss, int* port);
24 
25 // Convert from InetAddress to sockaddr_storage. An Inet6Address will be converted to an
26 // AF_INET6 sockaddr_in6. An Inet4Address will be converted to an IPv4-mapped AF_INET6
27 // sockaddr_in6. This is what you want if you're about to perform an operation on a socket,
28 // since all our sockets are AF_INET6.
29 bool inetAddressToSockaddr(JNIEnv* env, jobject inetAddress, int port,
30                            sockaddr_storage& ss, socklen_t& sa_len);
31 
32 // Convert from InetAddress to sockaddr_storage. An Inet6Address will be converted to an
33 // AF_INET6 sockaddr_in6. An Inet4Address will be converted to a sockaddr_in. This is probably
34 // only useful for getnameinfo(2), where we'll be presenting the result to the user and the
35 // user may actually care whether the original address was pure IPv4 or an IPv4-mapped IPv6
36 // address, and for the MCAST_JOIN_GROUP, MCAST_LEAVE_GROUP, and other multicast socket
37 // options.
38 bool inetAddressToSockaddrVerbatim(JNIEnv* env, jobject inetAddress, int port,
39                                    sockaddr_storage& ss, socklen_t& sa_len);
40 
41 
42 
43 // Changes 'fd' to be blocking/non-blocking. Returns false and sets errno on failure.
44 // @Deprecated - use IoUtils.setBlocking
45 bool setBlocking(int fd, bool blocking);
46