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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "rec_channel.hh"
#include <iostream>
#include "pdnsexception.hh"
#include "arguments.hh"
#include "namespaces.hh"
ArgvMap &arg()
{
static ArgvMap arg;
return arg;
}
static void initArguments(int argc, char** argv)
{
arg().set("config-dir","Location of configuration directory (recursor.conf)")=SYSCONFDIR;
arg().set("socket-dir",string("Where the controlsocket will live, ")+LOCALSTATEDIR+" when unset and not chrooted" )="";
arg().set("chroot","switch to chroot jail")="";
arg().set("process","When controlling multiple recursors, the target process number")="";
arg().set("timeout", "Number of seconds to wait for the recursor to respond")="5";
arg().set("config-name","Name of this virtual configuration - will rename the binary image")="";
arg().setCmd("help","Provide this helpful message");
arg().setCmd("version","Show the version of this program");
arg().laxParse(argc,argv);
if(arg().mustDo("help") || arg().getCommands().empty()) {
cout<<"syntax: rec_control [options] command, options as below: "<<endl<<endl;
cout<<arg().helpstring(arg()["help"])<<endl;
cout<<"In addition, 'rec_control help' can be used to retrieve a list\nof available commands from PowerDNS"<<endl;
exit(arg().mustDo("help") ? 0 : 99);
}
if(arg().mustDo("version")) {
cout<<"rec_control version "<<VERSION<<endl;
exit(0);
}
string configname=::arg()["config-dir"]+"/recursor.conf";
if (::arg()["config-name"] != "")
configname=::arg()["config-dir"]+"/recursor-"+::arg()["config-name"]+".conf";
cleanSlashes(configname);
arg().laxFile(configname.c_str());
arg().laxParse(argc,argv); // make sure the commandline wins
if (::arg()["socket-dir"].empty()) {
if (::arg()["chroot"].empty())
::arg().set("socket-dir") = LOCALSTATEDIR;
else
::arg().set("socket-dir") = ::arg()["chroot"] + "/";
} else if (!::arg()["chroot"].empty()) {
::arg().set("socket-dir") = ::arg()["chroot"] + "/" + ::arg()["socket-dir"];
}
}
int main(int argc, char** argv)
try
{
initArguments(argc, argv);
RecursorControlChannel rccS;
string sockname="pdns_recursor";
if (arg()["config-name"] != "")
sockname+="-"+arg()["config-name"];
if(!arg()["process"].empty())
sockname+="."+arg()["process"];
sockname.append(".controlsocket");
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"));
if(receive.compare(0, 7, "Unknown") == 0) {
cerr<<receive<<endl;
return 1;
}
cout<<receive;
return 0;
}
catch(PDNSException& ae)
{
cerr<<"Fatal: "<<ae.reason<<"\n";
return 1;
}
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