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package spnego
import (
"net"
"net/http"
"strings"
)
// Provider is the interface that wraps OS agnostic functions for handling SPNEGO communication
type Provider interface {
SetSPNEGOHeader(*http.Request) error
}
func canonicalizeHostname(hostname string) (string, error) {
addrs, err := net.LookupHost(hostname)
if err != nil {
return "", err
}
if len(addrs) < 1 {
return hostname, nil
}
names, err := net.LookupAddr(addrs[0])
if err != nil {
return "", err
}
if len(names) < 1 {
return hostname, nil
}
return strings.TrimRight(names[0], "."), nil
}
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