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https://github.com/Control-D-Inc/ctrld.git
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ccada70e31
While at it, ensure that config is validated, and fixing a bug related to reuse ctx between multiple upstreams resolving.
40 lines
1.5 KiB
Go
40 lines
1.5 KiB
Go
package dnsrcode
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import "strings"
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// https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-6
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var dnsRcode = map[string]int{
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"NOERROR": 0, // NoError - No Error
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"FORMERR": 1, // FormErr - Format Error
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"SERVFAIL": 2, // ServFail - Server Failure
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"NXDOMAIN": 3, // NXDomain - Non-Existent Domain
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"NOTIMP": 4, // NotImp - Not Implemented
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"REFUSED": 5, // Refused - Query Refused
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"YXDOMAIN": 6, // YXDomain - Name Exists when it should not
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"YXRRSET": 7, // YXRRSet - RR Set Exists when it should not
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"NXRRSET": 8, // NXRRSet - RR Set that should exist does not
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"NOTAUTH": 9, // NotAuth - Server Not Authoritative for zone
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"NOTZONE": 10, // NotZone - Name not contained in zone
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"BADSIG": 16, // BADSIG - TSIG Signature Failure
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"BADVERS": 16, // BADVERS - Bad OPT Version
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"BADKEY": 17, // BADKEY - Key not recognized
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"BADTIME": 18, // BADTIME - Signature out of time window
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"BADMODE": 19, // BADMODE - Bad TKEY Mode
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"BADNAME": 20, // BADNAME - Duplicate key name
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"BADALG": 21, // BADALG - Algorithm not supported
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"BADTRUNC": 22, // BADTRUNC - Bad Truncation
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"BADCOOKIE": 23, // BADCOOKIE - Bad/missing Server Cookie
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}
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// FromString returns the DNS Rcode number from given DNS Rcode string.
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// The string value is treated as case-insensitive. If the input string
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// is an invalid DNS Rcode, -1 is returned.
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func FromString(rcode string) int {
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rcode = strings.ToUpper(rcode)
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val, ok := dnsRcode[rcode]
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if !ok {
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return -1
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}
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return val
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}
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