File content as of revision 0:3717b703f76d:

#ifndef DNSREQUEST_H
#define DNSREQUEST_H

#include "if/net/net.h"
//Essentially it is a safe interface to NetDnsRequest

enum DnsRequestErr
{
  __DNS_MIN = -0xFFFF,
  DNS_SETUP, //NetDnsRequest not properly configured
  DNS_IF, //If has problems, does not exist or is not initialized
  DNS_MEM, //Not enough mem
  DNS_INUSE, //If/Port is in use
  DNS_PROCESSING, //Req has not completed
//...
  DNS_OK = 0
};

enum DnsReply
{
  DNS_PRTCL,
  DNS_NOTFOUND, //Hostname is unknown
  DNS_ERROR, //Problem with DNS Service
  //...
  DNS_FOUND,
};

class DnsRequest
{
public:
  DnsRequest();
  ~DnsRequest();
  
  DnsRequestErr resolve(const char* hostname);
  DnsRequestErr resolve(Host* pHost);
  
  class CDummy;
  void setOnReply( void (*pMethod)(DnsReply) );
  template<class T> 
  //Linker bug : Must be defined here :(
  void setOnReply( T* pItem, void (T::*pMethod)(DnsReply) )
  {
    m_pCbItem = (CDummy*) pItem;
    m_pCbMeth = (void (CDummy::*)(DnsReply)) pMethod;
  }
  
  DnsRequestErr getResult(IpAddr* pIp);
  
  DnsRequestErr close();
  
protected:
  void onNetDnsReply(NetDnsReply r);
  DnsRequestErr checkInst();

private:
  NetDnsRequest* m_pNetDnsRequest;
  
  CDummy* m_pCbItem;
  void (CDummy::*m_pCbMeth)(DnsReply);
  
  void (*m_pCb)(DnsReply);

};

#endif