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[Fix] Compabilitycheck #64

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[Fix] Compabilitycheck #64

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5c32a09
fix compability
noel2004 Oct 3, 2025
4e9428c
fmt
noel2004 Oct 3, 2025
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11 changes: 10 additions & 1 deletion encoding/da.go
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Original file line number Diff line number Diff line change
Expand Up @@ -495,7 +495,16 @@ func checkCompressedDataCompatibilityV7(data []byte) error {
// scan each block until done
for len(data) > 3 && !isLast {
isLast = (data[0] & 1) == 1
blkSize := (uint(data[2])*65536 + uint(data[1])*256 + uint(data[0])) >> 3
blkType := (data[0] >> 1) & 3
var blkSize uint
if blkType == 1 { // RLE Block
blkSize = 1
} else {
if blkType == 3 {
return fmt.Errorf("encounter reserved block type at %v", data)
}
blkSize = (uint(data[2])*65536 + uint(data[1])*256 + uint(data[0])) >> 3
}
if len(data) < 3+int(blkSize) {
return fmt.Errorf("wrong data len {%d}, expect min {%d}", len(data), 3+blkSize)
}
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