com.dalsemi.tininet.dns
Class DNSClient

java.lang.Object
  |
  +--com.dalsemi.tininet.dns.DNSClient

public class DNSClient

extends java.lang.Object

The DNSClient class allows DNS (Domain Name System) lookups per RFC 1035. Can perform forward or reverse lookups.

Constructor Summary

DNSClient()
Create an instance of DNSClient.

Method Summary

java.lang.String[]	getByIP(byte[] ip) Performs a reverse DNS lookup.
java.lang.String[]	getByIP(java.lang.String ip) Performs a reverse DNS lookup.
java.lang.String[]	getByName(java.lang.String name) Performs a DNS lookup.
void	setDNSTimeout(int timeout) Sets the DNS timeout.
void	setPrimaryDNS(java.lang.String dns1) Sets the primary DNS server to use for resolution.
void	setSecondaryDNS(java.lang.String dns2) Sets the secondary DNS server to use for resolution.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DNSClient

public DNSClient()

Create an instance of DNSClient.

Method Detail

setDNSTimeout

public void setDNSTimeout(int timeout)

Sets the DNS timeout.

Parameters:

timeout - Set to 0 for exponential backoff timeout or non-zero value for single timeout in milliseconds.

setPrimaryDNS

public void setPrimaryDNS(java.lang.String dns1)

Sets the primary DNS server to use for resolution.
Note: Address must be in numerical IP format

Parameters:

dns1 - IP address of DNS Server

setSecondaryDNS

public void setSecondaryDNS(java.lang.String dns2)

Sets the secondary DNS server to use for resolution.
Note: Address must be in numerical IP format

Parameters:

dns2 - IP address of DNS Server

getByIP

public java.lang.String[] getByIP(java.lang.String ip)

Performs a reverse DNS lookup.

Parameters:

ip - Address to look up

Returns:

DNS response, or null for failed lookup

getByIP

public java.lang.String[] getByIP(byte[] ip)

Performs a reverse DNS lookup.

Parameters:

ip - Address to look up

Returns:

DNS response, or null for failed lookup

getByName

public java.lang.String[] getByName(java.lang.String name)

Performs a DNS lookup.

Parameters:

name - FQDN to look up

Returns:

DNS response, or null for failed lookup