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  • Committer: Nicholas Skaggs
  • Date: 2016-10-24 20:56:05 UTC
  • Revision ID: nicholas.skaggs@canonical.com-20161024205605-z8lta0uvuhtxwzwl
Initi with beta15

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