DNS

This module includes functions that control DNS communication. More...

Data Structures
struct	otDnsQuery

Macros
#define	OT_DNS_MAX_HOSTNAME_LENGTH   62
	Maximum allowed hostname length (maximum label size - 1 for compression).
#define	OT_DNS_DEFAULT_DNS_SERVER_IP   "2001:4860:4860::8888"
	Defines default DNS Server address - Google DNS.
#define	OT_DNS_DEFAULT_DNS_SERVER_PORT   53
	Defines default DNS Server port.

Typedefs
typedef struct otDnsQuery	otDnsQuery
typedef void(*	otDnsResponseHandler )(void *aContext, const char *aHostname, otIp6Address *aAddress, uint32_t aTtl, ThreadError aResult)

Detailed Description

This module includes functions that control DNS communication.

Typedef Documentation

typedef struct otDnsQuery otDnsQuery

This structure implements DNS Query parameters.

typedef void(* otDnsResponseHandler)(void *aContext, const char *aHostname, otIp6Address *aAddress, uint32_t aTtl, ThreadError aResult)

This function pointer is called when a DNS response is received.

Parameters

[in]	aContext	A pointer to application-specific context.
[in]	aHostname	Identifies hostname related with DNS response.
[in]	aAddress	A pointer to the IPv6 address received in DNS response. May be null.
[in]	aTtl	Specifies the maximum time in seconds that the resource record may be cached.
[in]	aResult	A result of the DNS transaction.

Return values

kThreadError_None	A response was received successfully and IPv6 address is provided in aAddress.
kThreadError_Abort	A DNS transaction was aborted by stack.
kThreadError_ResponseTimeout	No DNS response has been received within timeout.
kThreadError_NotFound	A response was received but no IPv6 address has been found.
kThreadError_Failed	A response was received but status code is different than success.