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Dns.h
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Dns.h
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// Arduino DNS client for Enc28J60-based Ethernet shield
// (c) Copyright 2009-2010 MCQN Ltd.
// Released under Apache License, version 2.0
#ifndef DNSClient_h
#define DNSClient_h
#include "RF24Ethernet.h"
#if UIP_CONF_UDP > 0
class DNSClient
{
public:
void begin(const IPAddress& aDNSServer);
/**
* Convert a numeric IP address string into a four-byte IP address.
* @param aIPAddrString IP address to convert
* @param aResult IPAddress structure to store the returned IP address
* @result 1 if aIPAddrString was successfully converted to an IP address,
* else error code
*/
int inet_aton(const char* aIPAddrString, IPAddress& aResult);
/**
* Resolve the given hostname to an IP address.
* @param aHostname Name to be resolved
* @param aResult IPAddress structure to store the returned IP address
* @result 1 if aIPAddrString was successfully converted to an IP address,
* else error code
*/
int getHostByName(const char* aHostname, IPAddress& aResult);
protected:
uint16_t BuildRequest(const char* aName);
uint16_t ProcessResponse(uint16_t aTimeout, IPAddress& aAddress);
IPAddress iDNSServer;
uint16_t iRequestId;
RF24UDP iUdp;
};
#endif
#endif