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1 | /* | |
2 | * This file is part of PowerDNS or dnsdist. | |
3 | * Copyright -- PowerDNS.COM B.V. and its contributors | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * In addition, for the avoidance of any doubt, permission is granted to | |
10 | * link this program with OpenSSL and to (re)distribute the binaries | |
11 | * produced as the result of such linking. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | */ | |
22 | #pragma once | |
23 | #include <string> | |
24 | #include <vector> | |
25 | #include <sys/types.h> | |
26 | #include <errno.h> | |
27 | #include <iostream> | |
28 | #include <sstream> | |
29 | #include "iputils.hh" | |
30 | #include <boost/utility.hpp> | |
31 | #include <unistd.h> | |
32 | #include <sys/un.h> | |
33 | #include <dlfcn.h> | |
34 | #include <sys/socket.h> | |
35 | #include <netinet/in.h> | |
36 | ||
37 | #include "namespaces.hh" | |
38 | ||
39 | class DynListener : public boost::noncopyable | |
40 | { | |
41 | public: | |
42 | explicit DynListener(const string &pname=""); | |
43 | explicit DynListener(const ComboAddress& addr); | |
44 | ~DynListener(); | |
45 | void go(); | |
46 | void theListener(); | |
47 | ||
48 | typedef string g_funk_t(const vector<string> &parts, Utility::pid_t ppid); // guido! | |
49 | typedef struct { g_funk_t *func; string args; string usage; } g_funkwithusage_t; | |
50 | typedef map<string,g_funkwithusage_t> g_funkdb_t; | |
51 | ||
52 | static void registerFunc(const string &name, g_funk_t *gf, const string &usage="", const string &args=""); | |
53 | static void registerRestFunc(g_funk_t *gf); | |
54 | static g_funk_t* getFunc(const string& fname) { return s_funcdb[fname].func; } | |
55 | private: | |
56 | void sendlines(const string &lines); | |
57 | string getHelp(); | |
58 | string getLine(); | |
59 | ||
60 | void listenOnUnixDomain(const std::string& fname); | |
61 | void listenOnTCP(const ComboAddress&); | |
62 | void createSocketAndBind(int family, struct sockaddr*local, size_t len); | |
63 | ||
64 | NetmaskGroup d_tcprange; | |
65 | int d_s{-1}; | |
66 | int d_client{-1}; | |
67 | bool d_nonlocal; | |
68 | bool d_tcp{false}; | |
69 | pid_t d_ppid{0}; | |
70 | ||
71 | string d_socketname; | |
72 | ComboAddress d_socketaddress; | |
73 | static g_funkdb_t s_funcdb; | |
74 | static g_funk_t* s_restfunc; | |
75 | bool testLive(const string& fname); | |
76 | }; |