File: rec_control.cc

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pdns-recursor 3.2-4+deb6u1
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/*
    PowerDNS Versatile Database Driven Nameserver
    Copyright (C) 2006 PowerDNS.COM BV

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 2 as 
    published by the Free Software Foundation

    This program 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 for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
#include "rec_channel.hh"
#include <iostream>
#include "ahuexception.hh"
#include "arguments.hh"
#include "config.h"

using namespace std;

ArgvMap &arg()
{
  static ArgvMap arg;
  return arg;
}

static void initArguments(int argc, char** argv)
{
  arg().set("config-dir","Location of configuration directory (pdns.conf)")=SYSCONFDIR;

  arg().set("socket-dir","Where the controlsocket will live")=LOCALSTATEDIR;
  arg().set("socket-pid","When controlling multiple recursors, the target pid")="";
  arg().set("timeout", "Number of seconds to wait for the recursor to respond")="5";
  arg().setCmd("help","Provide this helpful message");

  arg().laxParse(argc,argv);  
  if(arg().getCommands().empty() || arg().mustDo("help")) {
    cerr<<"syntax: rec_control [options] command, options as below: "<<endl<<endl;
    cerr<<arg().helpstring(arg()["help"])<<endl;
    exit(99);
  }

}

int main(int argc, char** argv)
try
{
  initArguments(argc, argv);

  RecursorControlChannel rccS;
  string sockname="pdns_recursor.controlsocket";
  if(!arg()["socket-pid"].empty())
    sockname+="."+arg()["socket-pid"];

  rccS.connect(arg()["socket-dir"], sockname);

  const vector<string>&commands=arg().getCommands();
  string command;
  for(unsigned int i=0; i< commands.size(); ++i) {
    if(i>0)
      command+=" ";
    command+=commands[i];
  }
  rccS.send(command);
  string receive=rccS.recv(0, arg().asNum("timeout"));
  cout<<receive;
  return 0;
}
catch(AhuException& ae)
{
  cerr<<"Fatal: "<<ae.reason<<"\n";
  return 1;
}