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28 lines
388 B
Go
28 lines
388 B
Go
package zipstream
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import (
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"archive/zip"
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"hash"
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"io"
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)
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type crcReader struct {
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io.Reader
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hash hash.Hash32
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crc *uint32
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}
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func (r *crcReader) Read(b []byte) (n int, err error) {
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n, err = r.Reader.Read(b)
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r.hash.Write(b[:n])
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if err == nil {
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return
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}
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if err == io.EOF {
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if r.crc != nil && *r.crc != 0 && r.hash.Sum32() != *r.crc {
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err = zip.ErrChecksum
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}
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}
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return
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}
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