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package kerberos
import (
"net"
"strings"
)
/*
* Find the A record associated with a hostname
* In general, hostnames supplied to the driver should be
* canonicalized because the KDC usually only has one
* principal and not one per potential alias of a host.
*/
func canonicalizeHostname(host string) (string, error) {
canon := host
name, err := net.LookupCNAME(host)
if err != nil {
return "", err
}
name = strings.TrimSuffix(name, ".")
if name != "" {
canon = name
}
return canon, nil
}
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