35 lines
642 B
Go
35 lines
642 B
Go
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package commitment
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import (
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"io"
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"os"
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"path/filepath"
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)
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const treeDFile = "sc-02-data-tree-d.dat"
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// TreeDCommD reads CommD from tree-d
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func TreeDCommD(cache string) ([32]byte, error) {
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// Open the tree-d file for reading
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file, err := os.Open(filepath.Join(cache, treeDFile))
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if err != nil {
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return [32]byte{}, err
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}
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defer file.Close() // nolint:errcheck
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// Seek to 32 bytes from the end of the file
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_, err = file.Seek(-32, io.SeekEnd)
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if err != nil {
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return [32]byte{}, err
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}
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// Read the last 32 bytes
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var commD [32]byte
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_, err = file.Read(commD[:])
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if err != nil {
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return [32]byte{}, err
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}
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return commD, nil
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}
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