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io: fix SectionReader Seek to seek backwards
Fixes #899. R=golang-dev, rminnich, adg CC=golang-dev https://golang.org/cl/1749041
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@ -336,7 +336,7 @@ func (s *SectionReader) Seek(offset int64, whence int) (ret int64, err os.Error)
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case 2:
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case 2:
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offset += s.limit
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offset += s.limit
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}
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}
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if offset < s.off || offset > s.limit {
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if offset < s.base || offset > s.limit {
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return 0, os.EINVAL
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return 0, os.EINVAL
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}
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}
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s.off = offset
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s.off = offset
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