DnsProxyListener.h revision 0475ae98cd8f45de815d67d1966edaf5997be9a9 
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#ifndef _DNSPROXYLISTENER_H__
18#define _DNSPROXYLISTENER_H__
19
20#include <pthread.h>
21#include <sysutils/FrameworkListener.h>
22
23#include "NetdCommand.h"
24
25class DnsProxyListener : public FrameworkListener {
26public:
27    DnsProxyListener();
28    virtual ~DnsProxyListener() {}
29
30private:
31    class GetAddrInfoCmd : public NetdCommand {
32    public:
33        GetAddrInfoCmd();
34        virtual ~GetAddrInfoCmd() {}
35        int runCommand(SocketClient *c, int argc, char** argv);
36    };
37
38    class GetAddrInfoHandler {
39    public:
40        // Note: All of host, service, and hints may be NULL
41        GetAddrInfoHandler(SocketClient *c,
42                           char* host,
43                           char* service,
44                           struct addrinfo* hints)
45            : mClient(c),
46              mHost(host),
47              mService(service),
48              mHints(hints) {}
49        ~GetAddrInfoHandler();
50
51        static void* threadStart(void* handler);
52        void start();
53
54    private:
55        void run();
56        pthread_t mThread;
57        SocketClient* mClient;  // ref counted
58        char* mHost;    // owned
59        char* mService; // owned
60        struct addrinfo* mHints;  // owned
61    };
62
63    /* ------ gethostbyaddr ------*/
64    class GetHostByAddrCmd : public NetdCommand {
65    public:
66        GetHostByAddrCmd();
67        virtual ~GetHostByAddrCmd() {}
68        int runCommand(SocketClient *c, int argc, char** argv);
69    };
70
71    class GetHostByAddrHandler {
72    public:
73        GetHostByAddrHandler(SocketClient *c,
74                            void* address,
75                            int   addressLen,
76                            int   addressFamily)
77            : mClient(c),
78              mAddress(address),
79              mAddressLen(addressLen),
80              mAddressFamily(addressFamily) {}
81        ~GetHostByAddrHandler();
82
83        static void* threadStart(void* handler);
84        void start();
85
86    private:
87        void run();
88        pthread_t mThread;
89        SocketClient* mClient;  // ref counted
90        void* mAddress;    // address to lookup; owned
91        int   mAddressLen; // length of address to look up
92        int   mAddressFamily;  // address family
93    };
94};
95
96#endif
97