51 lines
1.3 KiB
JavaScript
51 lines
1.3 KiB
JavaScript
|
'use strict'
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Traditional DNS header RCODEs (4-bits) defined by IANA in
|
||
|
|
* https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml
|
||
|
|
*/
|
||
|
|
|
||
|
|
exports.toString = function (rcode) {
|
||
|
|
switch (rcode) {
|
||
|
|
case 0: return 'NOERROR'
|
||
|
|
case 1: return 'FORMERR'
|
||
|
|
case 2: return 'SERVFAIL'
|
||
|
|
case 3: return 'NXDOMAIN'
|
||
|
|
case 4: return 'NOTIMP'
|
||
|
|
case 5: return 'REFUSED'
|
||
|
|
case 6: return 'YXDOMAIN'
|
||
|
|
case 7: return 'YXRRSET'
|
||
|
|
case 8: return 'NXRRSET'
|
||
|
|
case 9: return 'NOTAUTH'
|
||
|
|
case 10: return 'NOTZONE'
|
||
|
|
case 11: return 'RCODE_11'
|
||
|
|
case 12: return 'RCODE_12'
|
||
|
|
case 13: return 'RCODE_13'
|
||
|
|
case 14: return 'RCODE_14'
|
||
|
|
case 15: return 'RCODE_15'
|
||
|
|
}
|
||
|
|
return 'RCODE_' + rcode
|
||
|
|
}
|
||
|
|
|
||
|
|
exports.toRcode = function (code) {
|
||
|
|
switch (code.toUpperCase()) {
|
||
|
|
case 'NOERROR': return 0
|
||
|
|
case 'FORMERR': return 1
|
||
|
|
case 'SERVFAIL': return 2
|
||
|
|
case 'NXDOMAIN': return 3
|
||
|
|
case 'NOTIMP': return 4
|
||
|
|
case 'REFUSED': return 5
|
||
|
|
case 'YXDOMAIN': return 6
|
||
|
|
case 'YXRRSET': return 7
|
||
|
|
case 'NXRRSET': return 8
|
||
|
|
case 'NOTAUTH': return 9
|
||
|
|
case 'NOTZONE': return 10
|
||
|
|
case 'RCODE_11': return 11
|
||
|
|
case 'RCODE_12': return 12
|
||
|
|
case 'RCODE_13': return 13
|
||
|
|
case 'RCODE_14': return 14
|
||
|
|
case 'RCODE_15': return 15
|
||
|
|
}
|
||
|
|
return 0
|
||
|
|
}
|