traefik/vendor/github.com/miekg/dns/reverse.go
Ludovic Fernandez 9b2423aaba Update Lego
2019-01-08 14:32:04 +01:00

43 lines
1 KiB
Go

package dns
// StringToType is the reverse of TypeToString, needed for string parsing.
var StringToType = reverseInt16(TypeToString)
// StringToClass is the reverse of ClassToString, needed for string parsing.
var StringToClass = reverseInt16(ClassToString)
// StringToOpcode is a map of opcodes to strings.
var StringToOpcode = reverseInt(OpcodeToString)
// StringToRcode is a map of rcodes to strings.
var StringToRcode = reverseInt(RcodeToString)
func init() {
// Preserve previous NOTIMP typo, see github.com/miekg/dns/issues/733.
StringToRcode["NOTIMPL"] = RcodeNotImplemented
}
// Reverse a map
func reverseInt8(m map[uint8]string) map[string]uint8 {
n := make(map[string]uint8, len(m))
for u, s := range m {
n[s] = u
}
return n
}
func reverseInt16(m map[uint16]string) map[string]uint16 {
n := make(map[string]uint16, len(m))
for u, s := range m {
n[s] = u
}
return n
}
func reverseInt(m map[int]string) map[string]int {
n := make(map[string]int, len(m))
for u, s := range m {
n[s] = u
}
return n
}