forked from juju/juju
/
addresses.go
39 lines (34 loc) · 1017 Bytes
/
addresses.go
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// Copyright 2014 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package manual
import (
"net"
"github.com/DavinZhang/juju/core/network"
)
// HostAddress returns an network.Address for the specified
// hostname, depending on whether it is an IP or a resolvable
// hostname. The address is given public scope.
func HostAddress(hostname string) (network.ProviderAddress, error) {
if ip := net.ParseIP(hostname); ip != nil {
addr := network.ProviderAddress{
MachineAddress: network.MachineAddress{
Value: ip.String(),
Type: network.DeriveAddressType(ip.String()),
Scope: network.ScopePublic,
},
}
return addr, nil
}
// Only a resolvable hostname may be used as a public address.
if _, err := netLookupHost(hostname); err != nil {
return network.ProviderAddress{}, err
}
addr := network.ProviderAddress{
MachineAddress: network.MachineAddress{
Value: hostname,
Type: network.HostName,
Scope: network.ScopePublic,
},
}
return addr, nil
}