Sergei G / NetworkServices

NetworkServices with NUCLEO-L476RG and W5500 by SeeedStudio stack.

Dependents:   coap-example Borsch coap-example

Fork of NetworkServices by AMETEK Powervar

DNSClient/DNSClient.h@17:c976088bf39d, 2017-07-05 (annotated)

Committer:
sgnezdov
Date:
Wed Jul 05 18:34:39 2017 +0000
Revision:
17:c976088bf39d
Parent:
15:14382459c8b7 
Changed setup interface to take MAC address, because W5500 may use software defined MAC when obtaining IP.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dgriffin65 15:14382459c8b7 1 // DNSClient.h 2013/4/5
dgriffin65 15:14382459c8b7 2 #pragma once
dgriffin65 15:14382459c8b7 3
dgriffin65 15:14382459c8b7 4 #include "UDPSocket.h"
dgriffin65 15:14382459c8b7 5
dgriffin65 15:14382459c8b7 6 //#define DBG_DNS 1
dgriffin65 15:14382459c8b7 7
dgriffin65 15:14382459c8b7 8 class DNSClient {
dgriffin65 15:14382459c8b7 9 public:
dgriffin65 15:14382459c8b7 10 DNSClient();
dgriffin65 15:14382459c8b7 11 DNSClient(NetworkStack *ns, const char* hostname = NULL);
dgriffin65 15:14382459c8b7 12 DNSClient(NetworkStack *ns, SocketAddress* pHost);
dgriffin65 15:14382459c8b7 13
dgriffin65 15:14382459c8b7 14 int setup(NetworkStack *ns);
dgriffin65 15:14382459c8b7 15
dgriffin65 15:14382459c8b7 16 virtual ~DNSClient();
dgriffin65 15:14382459c8b7 17 bool lookup(const char* hostname);
dgriffin65 15:14382459c8b7 18 bool set_server(const char* serverip, int port=53);
dgriffin65 15:14382459c8b7 19 uint32_t get_ip() {return m_ip;}
dgriffin65 15:14382459c8b7 20 const char* get_ip_address() {return m_ipaddr;}
dgriffin65 15:14382459c8b7 21
dgriffin65 15:14382459c8b7 22 protected:
dgriffin65 15:14382459c8b7 23 void poll();
dgriffin65 15:14382459c8b7 24 void callback();
dgriffin65 15:14382459c8b7 25 int response(uint8_t buf[], int size);
dgriffin65 15:14382459c8b7 26 int query(uint8_t buf[], int size, const char* hostname);
dgriffin65 15:14382459c8b7 27 void resolve(const char* hostname);
dgriffin65 15:14382459c8b7 28 uint8_t m_id[2];
dgriffin65 15:14382459c8b7 29 Timer m_interval;
dgriffin65 15:14382459c8b7 30 int m_retry;
dgriffin65 15:14382459c8b7 31 const char* m_hostname;
dgriffin65 15:14382459c8b7 32
dgriffin65 15:14382459c8b7 33 private:
dgriffin65 15:14382459c8b7 34 enum MyNetDnsState
dgriffin65 15:14382459c8b7 35 {
dgriffin65 15:14382459c8b7 36 MYNETDNS_START,
dgriffin65 15:14382459c8b7 37 MYNETDNS_PROCESSING, //Req has not completed
dgriffin65 15:14382459c8b7 38 MYNETDNS_NOTFOUND,
dgriffin65 15:14382459c8b7 39 MYNETDNS_ERROR,
dgriffin65 15:14382459c8b7 40 MYNETDNS_OK
dgriffin65 15:14382459c8b7 41 };
dgriffin65 15:14382459c8b7 42 MyNetDnsState m_state;
dgriffin65 15:14382459c8b7 43 UDPSocket *m_udp;
dgriffin65 15:14382459c8b7 44 NetworkStack *m_ns;
dgriffin65 15:14382459c8b7 45
dgriffin65 15:14382459c8b7 46 uint32_t m_ip;
dgriffin65 15:14382459c8b7 47 char m_ipaddr[24];
dgriffin65 15:14382459c8b7 48 };