blob: 481c5c40476bd1816b9a18f2521abac44a6ea8aa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
// Arduino DNS client for WizNet5100-based Ethernet shield
// (c) Copyright 2009-2010 MCQN Ltd.
// Released under Apache License, version 2.0
#ifndef DNSClient_h
#define DNSClient_h
#include <EthernetUdp3.h>
class DNSClient
{
public:
// ctor
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;
EthernetUDP iUdp;
};
#endif
|