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46 lines
929 B
Go
46 lines
929 B
Go
package main
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import (
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"bytes"
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"crypto/sha256"
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"crypto/sha512"
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"fmt"
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"hash"
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"io"
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"io/ioutil"
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"os"
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)
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func writeHash(fname, name string, h hash.Hash, data []byte) error {
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if _, err := io.Copy(h, bytes.NewReader(data)); err != nil {
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return err
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}
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f, err := os.Create(fname)
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if err != nil {
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return err
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}
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fmt.Fprintf(f, "%x %s\n", h.Sum(nil), name)
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return f.Close()
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}
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func writeHashedFile(fname, name string, data []byte, armored string) error {
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// Write the file itself.
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if err := ioutil.WriteFile(fname, data, 0644); err != nil {
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return err
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}
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// Write SHA256 sum.
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if err := writeHash(fname+".sha256", name, sha256.New(), data); err != nil {
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return err
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}
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// Write SHA512 sum.
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if err := writeHash(fname+".sha512", name, sha512.New(), data); err != nil {
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return err
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}
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// Write signature.
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if err := ioutil.WriteFile(fname+".asc", []byte(armored), 0644); err != nil {
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return err
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}
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return nil
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}
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