internal/ethapi: handle odd length hex in decodeHash (ethereum#25883)

This change adds zero-padding (prefix) of odd nibbles in the decodeHash function. Co-authored-by: ty <ty@oncoder.com>
blakehhuynh · Oct 3, 2022 · 1dd9e9a · 1dd9e9a
1 parent 5e30910
commit 1dd9e9a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
@@ -714,6 +714,9 @@ func decodeHash(s string) (common.Hash, error) {
 	if strings.HasPrefix(s, "0x") || strings.HasPrefix(s, "0X") {
 		s = s[2:]
 	}
+	if (len(s) & 1) > 0 {
+		s = "0" + s
+	}
 	b, err := hex.DecodeString(s)
 	if err != nil {
 		return common.Hash{}, fmt.Errorf("hex string invalid")