Diff: Socket/DNSClient.hpp

Revision:

20:3e61863c1f67

Parent:

0:6f28332c466f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/DNSClient.hpp	Tue Jul 14 10:16:16 2015 +0000
@@ -0,0 +1,38 @@
+// DNSClient.h 2013/4/5
+#pragma once
+
+#include "UDPSocket.hpp"
+
+namespace wiznet_space {
+
+class DNSClient {
+public:
+    DNSClient(const char* hostname = NULL);
+    DNSClient(Endpoint* pHost);
+    virtual ~DNSClient();
+    bool lookup(const char* hostname = NULL);
+    uint32_t ip;
+protected:
+    void poll();
+    void callback();
+    int response(uint8_t buf[], int size);
+    int query(uint8_t buf[], int size, const char* hostname);
+    void resolve(const char* hostname);
+    uint8_t m_id[2];
+    Timer m_interval;
+    int m_retry;
+    const char* m_hostname;
+private:
+    enum MyNetDnsState
+    {
+        MYNETDNS_START,
+        MYNETDNS_PROCESSING, //Req has not completed
+        MYNETDNS_NOTFOUND,
+        MYNETDNS_ERROR,
+        MYNETDNS_OK
+    };
+    MyNetDnsState m_state;
+    UDPSocket *m_udp;
+};
+
+}