add OpenSSL exception to PowerDNS, Netherlabs, van Dijk and Hubert copyrights

[thirdparty/pdns.git] / pdns / lwres.hh

/*
    PowerDNS Versatile Database Driven Nameserver
    Copyright (C) 2002 - 2007 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

    Additionally, the license of this program contains a special
    exception which allows to distribute the program in binary form when
    it is linked against OpenSSL.

    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
*/

#ifndef PDNS_LWRES_HH
#define PDNS_LWRES_HH
#include <string>
#include <vector>
#include <sys/types.h>
#include "misc.hh"
#include "iputils.hh"
#include <netdb.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#undef res_mkquery

#include "pdnsexception.hh"
#include "dns.hh"
#include "namespaces.hh"

int asendto(const char *data, int len, int flags, const ComboAddress& ip, uint16_t id, 
            const string& domain, uint16_t qtype,  int* fd);
int arecvfrom(char *data, int len, int flags, const ComboAddress& ip, int *d_len, uint16_t id, 
              const string& domain, uint16_t, int fd, struct timeval* now);

class LWResException : public PDNSException
{
public:
  LWResException(const string &reason) : PDNSException(reason){}
};

//! LWRes class 
class LWResult
{
public:
  typedef vector<DNSResourceRecord> res_t;

  vector<DNSResourceRecord> d_result;
  int d_rcode;
  bool d_aabit, d_tcbit;
  uint32_t d_usec;
  bool d_pingCorrect;
  bool d_haveEDNS;
};

int asyncresolve(const ComboAddress& ip, const string& domain, int type, bool doTCP, bool sendRDQuery, int EDNS0Level, struct timeval* now, LWResult* res);

#endif // PDNS_LWRES_HH