Shuyi Chen | d7955ce | 2013-05-22 14:51:55 -0700 | [diff] [blame] | 1 | // Copyright (c) 1999-2004 Brian Wellington (bwelling@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 | } |