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/**
*
*/
package javax.jmdns.impl.constants;
/**
* DNS result code.
*
* @author Arthur van Hoff, Jeff Sonstein, Werner Randelshofer, Pierre Frisch, Rick Blair
*/
public enum DNSResultCode {
/**
* Token
*/
Unknown("Unknown", 65535),
/**
* No Error [RFC1035]
*/
NoError("No Error", 0),
/**
* Format Error [RFC1035]
*/
FormErr("Format Error", 1),
/**
* Server Failure [RFC1035]
*/
ServFail("Server Failure", 2),
/**
* Non-Existent Domain [RFC1035]
*/
NXDomain("Non-Existent Domain", 3),
/**
* Not Implemented [RFC1035]
*/
NotImp("Not Implemented", 4),
/**
* Query Refused [RFC1035]
*/
Refused("Query Refused", 5),
/**
* Name Exists when it should not [RFC2136]
*/
YXDomain("Name Exists when it should not", 6),
/**
* RR Set Exists when it should not [RFC2136]
*/
YXRRSet("RR Set Exists when it should not", 7),
/**
* RR Set that should exist does not [RFC2136]
*/
NXRRSet("RR Set that should exist does not", 8),
/**
* Server Not Authoritative for zone [RFC2136]]
*/
NotAuth("Server Not Authoritative for zone", 9),
/**
* Name not contained in zone [RFC2136]
*/
NotZone("NotZone Name not contained in zone", 10),
;
// 0 NoError No Error [RFC1035]
// 1 FormErr Format Error [RFC1035]
// 2 ServFail Server Failure [RFC1035]
// 3 NXDomain Non-Existent Domain [RFC1035]
// 4 NotImp Not Implemented [RFC1035]
// 5 Refused Query Refused [RFC1035]
// 6 YXDomain Name Exists when it should not [RFC2136]
// 7 YXRRSet RR Set Exists when it should not [RFC2136]
// 8 NXRRSet RR Set that should exist does not [RFC2136]
// 9 NotAuth Server Not Authoritative for zone [RFC2136]
// 10 NotZone Name not contained in zone [RFC2136]
// 11-15 Unassigned
// 16 BADVERS Bad OPT Version [RFC2671]
// 16 BADSIG TSIG Signature Failure [RFC2845]
// 17 BADKEY Key not recognized [RFC2845]
// 18 BADTIME Signature out of time window [RFC2845]
// 19 BADMODE Bad TKEY Mode [RFC2930]
// 20 BADNAME Duplicate key name [RFC2930]
// 21 BADALG Algorithm not supported [RFC2930]
// 22 BADTRUNC Bad Truncation [RFC4635]
// 23-3840 Unassigned
// 3841-4095 Reserved for Private Use [RFC5395]
// 4096-65534 Unassigned
// 65535 Reserved, can be allocated by Standards Action [RFC5395]
/**
* DNS Result Code types are encoded on the last 4 bits
*/
final static int RCode_MASK = 0x0F;
/**
* DNS Extended Result Code types are encoded on the first 8 bits
*/
final static int ExtendedRCode_MASK = 0xFF;
private final String _externalName;
private final int _index;
DNSResultCode(String name, int index) {
_externalName = name;
_index = index;
}
/**
* Return the string representation of this type
*
* @return String
*/
public String externalName() {
return _externalName;
}
/**
* Return the numeric value of this type
*
* @return String
*/
public int indexValue() {
return _index;
}
/**
* @param flags
* @return label
*/
public static DNSResultCode resultCodeForFlags(int flags) {
int maskedIndex = flags & RCode_MASK;
for (DNSResultCode aCode : DNSResultCode.values()) {
if (aCode._index == maskedIndex) return aCode;
}
return Unknown;
}
public static DNSResultCode resultCodeForFlags(int flags, int extendedRCode) {
int maskedIndex = ((extendedRCode >> 28) & ExtendedRCode_MASK) | (flags & RCode_MASK);
for (DNSResultCode aCode : DNSResultCode.values()) {
if (aCode._index == maskedIndex) return aCode;
}
return Unknown;
}
@Override
public String toString() {
return this.name() + " index " + this.indexValue();
}
}
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