Fix symlink payload reading with io.ReadFull#43
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Signed-off-by: Kudryavcev Nikolay <kydry.nikolau@gmail.com>
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When reading symlink files, we might hit a case where we try to read an N-byte payload while the remaining buffer has fewer than N bytes left. This results in a corrupted string and causes subsequent os.Symlink() calls to fail during ignoringEINTR() checks.
This fix replaces the current reading approach with io.ReadFull to ensure we fully read exactly N bytes, as recommended in bufio package.
@mtharp Please take a look.