DragonX/lightwalletd
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GetDisplayPrevHash() should not change its argument

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This commit is contained in:
Larry Ruane
2019-10-07 14:00:10 -06:00
committed by Aditya Kulkarni
parent dae04a59d7
commit da85a1d80b
1 changed files with 6 additions and 5 deletions
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11
parser/block.go
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@@ -44,13 +44,14 @@ func (b *Block) GetEncodableHash() []byte {
} }
func (b *Block) GetDisplayPrevHash() []byte { func (b *Block) GetDisplayPrevHash() []byte {
h := b.hdr.HashPrevBlock rhash := make([]byte, len(b.hdr.HashPrevBlock))
copy(rhash, b.hdr.HashPrevBlock)
// Reverse byte order // Reverse byte order
for i := 0; i < len(h)/2; i++ { for i := 0; i < len(rhash)/2; i++ {
j := len(h) - 1 - i j := len(rhash) - 1 - i
h[i], h[j] = h[j], h[i] rhash[i], rhash[j] = rhash[j], rhash[i]
} }
return h return rhash
} }
func (b *Block) HasSaplingTransactions() bool { func (b *Block) HasSaplingTransactions() bool {