dns

package
v1.16.1 Latest Latest
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Published: Aug 5, 2023 License: MPL-2.0 Imports: 3 Imported by: 0

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Index

Constants

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const MaxLabelLength = 63

MaxLabelLength is the maximum length for a name that can be used in DNS.

Variables

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var InvalidNameRe = regexp.MustCompile(`[^A-Za-z0-9\\-]+`)

InvalidNameRe is a regex that matches characters which can not be included in a DNS name.

Functions

func IsValidLabel added in v1.11.9

func IsValidLabel(name string) bool

IsValidLabel returns true if the string given is a valid DNS label (RFC 1123). Note: the only difference between RFC 1035 and RFC 1123 labels is that in RFC 1123 labels can begin with a number.

func ValidateLabel added in v1.11.9

func ValidateLabel(name string) error

ValidateLabel is similar to IsValidLabel except it returns an error instead of false when name is not a valid DNS label. The error will contain reference to what constitutes a valid DNS label.

Types

type RecursorStrategy added in v1.11.0

type RecursorStrategy string
const (
	RecursorStrategySequential RecursorStrategy = "sequential"
	RecursorStrategyRandom     RecursorStrategy = "random"
)

func (RecursorStrategy) Indexes added in v1.11.0

func (s RecursorStrategy) Indexes(max int) []int

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