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      1 // Copyright (c) 1999-2004 Brian Wellington (bwelling (at) xbill.org)
      2 
      3 package org.xbill.DNS;
      4 
      5 import java.io.*;
      6 
      7 /**
      8  * Host Information - describes the CPU and OS of a host
      9  *
     10  * @author Brian Wellington
     11  */
     12 
     13 public class HINFORecord extends Record {
     14 
     15 private static final long serialVersionUID = -4732870630947452112L;
     16 
     17 private byte [] cpu, os;
     18 
     19 HINFORecord() {}
     20 
     21 Record
     22 getObject() {
     23 	return new HINFORecord();
     24 }
     25 
     26 /**
     27  * Creates an HINFO Record from the given data
     28  * @param cpu A string describing the host's CPU
     29  * @param os A string describing the host's OS
     30  * @throws IllegalArgumentException One of the strings has invalid escapes
     31  */
     32 public
     33 HINFORecord(Name name, int dclass, long ttl, String cpu, String os) {
     34 	super(name, Type.HINFO, dclass, ttl);
     35 	try {
     36 		this.cpu = byteArrayFromString(cpu);
     37 		this.os = byteArrayFromString(os);
     38 	}
     39 	catch (TextParseException e) {
     40 		throw new IllegalArgumentException(e.getMessage());
     41 	}
     42 }
     43 
     44 void
     45 rrFromWire(DNSInput in) throws IOException {
     46 	cpu = in.readCountedString();
     47 	os = in.readCountedString();
     48 }
     49 
     50 void
     51 rdataFromString(Tokenizer st, Name origin) throws IOException {
     52 	try {
     53 		cpu = byteArrayFromString(st.getString());
     54 		os = byteArrayFromString(st.getString());
     55 	}
     56 	catch (TextParseException e) {
     57 		throw st.exception(e.getMessage());
     58 	}
     59 }
     60 
     61 /**
     62  * Returns the host's CPU
     63  */
     64 public String
     65 getCPU() {
     66 	return byteArrayToString(cpu, false);
     67 }
     68 
     69 /**
     70  * Returns the host's OS
     71  */
     72 public String
     73 getOS() {
     74 	return byteArrayToString(os, false);
     75 }
     76 
     77 void
     78 rrToWire(DNSOutput out, Compression c, boolean canonical) {
     79 	out.writeCountedString(cpu);
     80 	out.writeCountedString(os);
     81 }
     82 
     83 /**
     84  * Converts to a string
     85  */
     86 String
     87 rrToString() {
     88 	StringBuffer sb = new StringBuffer();
     89 	sb.append(byteArrayToString(cpu, true));
     90 	sb.append(" ");
     91 	sb.append(byteArrayToString(os, true));
     92 	return sb.toString();
     93 }
     94 
     95 }
     96