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Last change
on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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File size:
1.2 KB
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| [6a3a178] | 1 | /*
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| 2 | * Traditional DNS header RCODEs (4-bits) defined by IANA in
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| 3 | * https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml
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| 4 | */
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| 5 |
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| 6 | exports.toString = function (rcode) {
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| 7 | switch (rcode) {
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| 8 | case 0: return 'NOERROR'
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| 9 | case 1: return 'FORMERR'
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| 10 | case 2: return 'SERVFAIL'
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| 11 | case 3: return 'NXDOMAIN'
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| 12 | case 4: return 'NOTIMP'
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| 13 | case 5: return 'REFUSED'
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| 14 | case 6: return 'YXDOMAIN'
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| 15 | case 7: return 'YXRRSET'
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| 16 | case 8: return 'NXRRSET'
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| 17 | case 9: return 'NOTAUTH'
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| 18 | case 10: return 'NOTZONE'
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| 19 | case 11: return 'RCODE_11'
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| 20 | case 12: return 'RCODE_12'
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| 21 | case 13: return 'RCODE_13'
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| 22 | case 14: return 'RCODE_14'
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| 23 | case 15: return 'RCODE_15'
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| 24 | }
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| 25 | return 'RCODE_' + rcode
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| 26 | }
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| 27 |
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| 28 | exports.toRcode = function (code) {
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| 29 | switch (code.toUpperCase()) {
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| 30 | case 'NOERROR': return 0
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| 31 | case 'FORMERR': return 1
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| 32 | case 'SERVFAIL': return 2
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| 33 | case 'NXDOMAIN': return 3
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| 34 | case 'NOTIMP': return 4
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| 35 | case 'REFUSED': return 5
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| 36 | case 'YXDOMAIN': return 6
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| 37 | case 'YXRRSET': return 7
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| 38 | case 'NXRRSET': return 8
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| 39 | case 'NOTAUTH': return 9
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| 40 | case 'NOTZONE': return 10
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| 41 | case 'RCODE_11': return 11
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| 42 | case 'RCODE_12': return 12
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| 43 | case 'RCODE_13': return 13
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| 44 | case 'RCODE_14': return 14
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| 45 | case 'RCODE_15': return 15
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| 46 | }
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| 47 | return 0
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| 48 | }
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