coredns/middleware/pkg/dnsutil/join.go
Miek Gieben 02955d7594 Dns.join (#944)
* Add dnsutil.Join

* Create dnsutil.Join

Create Join helper function and move bits in the code over.
2017-08-19 15:22:09 +01:00

19 lines
417 B
Go

package dnsutil
import (
"strings"
"github.com/miekg/dns"
)
// Join joins labels to form a fully qualified domain name. If the last label is
// the root label it is ignored. Not other syntax checks are performed.
func Join(labels []string) string {
ll := len(labels)
if labels[ll-1] == "." {
s := strings.Join(labels[:ll-1], ".")
return dns.Fqdn(s)
}
s := strings.Join(labels, ".")
return dns.Fqdn(s)
}