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nameserver_local.go
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nameserver_local.go
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//go:build !confonly
// +build !confonly
package dns
import (
"context"
"github.com/bmclab-git/v2ray-core/v5/common/net"
"github.com/bmclab-git/v2ray-core/v5/features/dns"
"github.com/bmclab-git/v2ray-core/v5/features/dns/localdns"
)
// LocalNameServer is an wrapper over local DNS feature.
type LocalNameServer struct {
client *localdns.Client
}
// QueryIP implements Server.
func (s *LocalNameServer) QueryIP(_ context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) ([]net.IP, error) {
var ips []net.IP
var err error
switch {
case option.IPv4Enable && option.IPv6Enable:
ips, err = s.client.LookupIP(domain)
case option.IPv4Enable:
ips, err = s.client.LookupIPv4(domain)
case option.IPv6Enable:
ips, err = s.client.LookupIPv6(domain)
}
if len(ips) > 0 {
newError("Localhost got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
}
return ips, err
}
// Name implements Server.
func (s *LocalNameServer) Name() string {
return "localhost"
}
// NewLocalNameServer creates localdns server object for directly lookup in system DNS.
func NewLocalNameServer() *LocalNameServer {
newError("DNS: created localhost client").AtInfo().WriteToLog()
return &LocalNameServer{
client: localdns.New(),
}
}
// NewLocalDNSClient creates localdns client object for directly lookup in system DNS.
func NewLocalDNSClient() *Client {
return &Client{server: NewLocalNameServer()}
}