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// Copyright (c) 1999-2004 Brian Wellington (bwelling@xbill.org)
package org.xbill.DNS;
/**
* Constants and functions relating to DNS rcodes (error values)
*
* @author Brian Wellington
*/
public final class Rcode {
private static Mnemonic rcodes = new Mnemonic("DNS Rcode",
Mnemonic.CASE_UPPER);
private static Mnemonic tsigrcodes = new Mnemonic("TSIG rcode",
Mnemonic.CASE_UPPER);
/** No error */
public static final int NOERROR = 0;
/** Format error */
public static final int FORMERR = 1;
/** Server failure */
public static final int SERVFAIL = 2;
/** The name does not exist */
public static final int NXDOMAIN = 3;
/** The operation requested is not implemented */
public static final int NOTIMP = 4;
/** Deprecated synonym for NOTIMP. */
public static final int NOTIMPL = 4;
/** The operation was refused by the server */
public static final int REFUSED = 5;
/** The name exists */
public static final int YXDOMAIN = 6;
/** The RRset (name, type) exists */
public static final int YXRRSET = 7;
/** The RRset (name, type) does not exist */
public static final int NXRRSET = 8;
/** The requestor is not authorized to perform this operation */
public static final int NOTAUTH = 9;
/** The zone specified is not a zone */
public static final int NOTZONE = 10;
/* EDNS extended rcodes */
/** Unsupported EDNS level */
public static final int BADVERS = 16;
/* TSIG/TKEY only rcodes */
/** The signature is invalid (TSIG/TKEY extended error) */
public static final int BADSIG = 16;
/** The key is invalid (TSIG/TKEY extended error) */
public static final int BADKEY = 17;
/** The time is out of range (TSIG/TKEY extended error) */
public static final int BADTIME = 18;
/** The mode is invalid (TKEY extended error) */
public static final int BADMODE = 19;
static {
rcodes.setMaximum(0xFFF);
rcodes.setPrefix("RESERVED");
rcodes.setNumericAllowed(true);
rcodes.add(NOERROR, "NOERROR");
rcodes.add(FORMERR, "FORMERR");
rcodes.add(SERVFAIL, "SERVFAIL");
rcodes.add(NXDOMAIN, "NXDOMAIN");
rcodes.add(NOTIMP, "NOTIMP");
rcodes.addAlias(NOTIMP, "NOTIMPL");
rcodes.add(REFUSED, "REFUSED");
rcodes.add(YXDOMAIN, "YXDOMAIN");
rcodes.add(YXRRSET, "YXRRSET");
rcodes.add(NXRRSET, "NXRRSET");
rcodes.add(NOTAUTH, "NOTAUTH");
rcodes.add(NOTZONE, "NOTZONE");
rcodes.add(BADVERS, "BADVERS");
tsigrcodes.setMaximum(0xFFFF);
tsigrcodes.setPrefix("RESERVED");
tsigrcodes.setNumericAllowed(true);
tsigrcodes.addAll(rcodes);
tsigrcodes.add(BADSIG, "BADSIG");
tsigrcodes.add(BADKEY, "BADKEY");
tsigrcodes.add(BADTIME, "BADTIME");
tsigrcodes.add(BADMODE, "BADMODE");
}
private
Rcode() {}
/** Converts a numeric Rcode into a String */
public static String
string(int i) {
return rcodes.getText(i);
}
/** Converts a numeric TSIG extended Rcode into a String */
public static String
TSIGstring(int i) {
return tsigrcodes.getText(i);
}
/** Converts a String representation of an Rcode into its numeric value */
public static int
value(String s) {
return rcodes.getValue(s);
}
}
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