pdns/dynmessenger.hh

   1 /*
   2     PowerDNS Versatile Database Driven Nameserver
   3     Copyright (C) 2002  PowerDNS.COM BV
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License version 2
   7     as published by the Free Software Foundation
   8
   9     Additionally, the license of this program contains a special
  10     exception which allows to distribute the program in binary form when
  11     it is linked against OpenSSL.
  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 St, Fifth Floor, Boston, MA  02110-1301  USA
  21 */
  22 #ifndef DYNMESSENGER_HH
  23 #define DYNMESSENGER_HH
  24
  25 #include <string>
  26 #include <sys/types.h>
  27 #include <sys/socket.h>
  28 #include <netinet/in.h>
  29 #include <sys/un.h>
  30 #include <unistd.h>
  31 #include <libgen.h>
  32 #include <errno.h>
  33 #include "iputils.hh"
  34 #include "pdnsexception.hh"
  35
  36 #include "namespaces.hh"
  37
  38 //! The DynMessenger can send messages to UNIX domain sockets and TCP sockets
  39 class DynMessenger
  40 {
  41   int d_s;
  42
  43   struct sockaddr_un d_local; // our local address
  44   struct sockaddr_un d_remote; // our remote address
  45
  46   DynMessenger(const DynMessenger &); // NOT IMPLEMENTED
  47
  48 public:
  49   // CREATORS
  50
  51   DynMessenger(const string &ldir, const string &filename);  //!< Create a DynMessenger sending to this file
  52   DynMessenger(const ComboAddress& remote, const string &password);  //!< Create a DynMessenger sending to this file
  53   ~DynMessenger();
  54
  55   // ACCESSORS
  56   int send(const string &message) const; //!< Send a message to a DynListener
  57   string receive() const; //!< receive an answer from a DynListener
  58 };
  59
  60 #endif