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32 lines
564 B
32 lines
564 B
// Code forked from Docker project
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package daemon
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import (
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"errors"
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"net"
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"os"
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)
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var SdNotifyNoSocket = errors.New("No socket")
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// SdNotify sends a message to the init daemon. It is common to ignore the error.
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func SdNotify(state string) error {
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socketAddr := &net.UnixAddr{
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Name: os.Getenv("NOTIFY_SOCKET"),
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Net: "unixgram",
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}
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if socketAddr.Name == "" {
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return SdNotifyNoSocket
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}
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conn, err := net.DialUnix(socketAddr.Net, nil, socketAddr)
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if err != nil {
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return err
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}
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defer conn.Close()
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_, err = conn.Write([]byte(state))
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return err
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}
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