sysresolv

Documentation

Overview

Package sysresolv provides cross-platform functionality to discover DNS resolvers currently used by the system.

Index

• type HostGenFunc
• type Resolvers
  • func NewSystemResolvers(f HostGenFunc) (r Resolvers, err error)

Types

type HostGenFunc

type HostGenFunc func() (host string)

HostGenFunc is a function used for generating hostnames to check the system DNS. Implementations must be safe for concurrent use.

type Resolvers

type Resolvers interface {
	// Addrs returns the local resolvers' addresses.  It must be safe for
	// concurrent use.
	Addrs() (addrs []string)

	// Refresh refreshes the local resolvers' addresses cache.  It must be safe
	// for concurrent use.
	Refresh() (err error)
}

Resolvers helps to work with local resolvers' addresses provided by OS.

func NewSystemResolvers

func NewSystemResolvers(f HostGenFunc) (r Resolvers, err error)

NewSystemResolvers returns a Resolvers instance that uses f to generate fake hosts for checking. If f is nil, a default generator is used.