diff options
| author | Thibaut VIARD <thibaut.viard@atmel.com> | 2011-06-21 00:20:43 +0200 |
|---|---|---|
| committer | Thibaut VIARD <thibaut.viard@atmel.com> | 2011-06-21 00:20:43 +0200 |
| commit | 0887b98f627500271b5ad8b3c4f6c7b90bc227ee (patch) | |
| tree | ef8626954567ba22e392c68c8f3606416b07b5b5 /libraries/Ethernet/Dns.h | |
| parent | 90c487402cefadb6a2aab907ab07075cbb759e34 (diff) | |
Moving all AVR specific libraries to hardware/avr
Diffstat (limited to 'libraries/Ethernet/Dns.h')
| -rw-r--r-- | libraries/Ethernet/Dns.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/libraries/Ethernet/Dns.h b/libraries/Ethernet/Dns.h new file mode 100644 index 0000000..9582351 --- /dev/null +++ b/libraries/Ethernet/Dns.h @@ -0,0 +1,41 @@ +// 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 <Udp.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(int aTimeout, IPAddress& aAddress);
+
+ IPAddress iDNSServer;
+ uint16_t iRequestId;
+ UDP iUdp;
+};
+
+#endif
|