28 lines
809 B
Go
28 lines
809 B
Go
// +build linux
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package machineid
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const (
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// dbusPath is the default path for dbus machine id.
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dbusPath = "/var/lib/dbus/machine-id"
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// dbusPathEtc is the default path for dbus machine id located in /etc.
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// Some systems (like Fedora 20) only know this path.
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// Sometimes it's the other way round.
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dbusPathEtc = "/etc/machine-id"
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)
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// machineID returns the uuid specified at `/var/lib/dbus/machine-id` or `/etc/machine-id`.
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// If there is an error reading the files an empty string is returned.
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// See https://unix.stackexchange.com/questions/144812/generate-consistent-machine-unique-id
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func machineID() (string, error) {
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id, err := readFile(dbusPath)
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if err != nil {
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// try fallback path
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id, err = readFile(dbusPathEtc)
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}
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if err != nil {
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return "", err
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}
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return trim(string(id)), nil
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}
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