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Consolidate redundant implementations of ParseHashStr

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This change:
* adds a length check to ParseHashStr, appropriate given its use to populate
  a 256-bit number from a hex str.
* allows the caller to handle the failure, which allows for the more
  appropriate JSONRPCError on failure in prioritisetransaction rpc
This commit is contained in:
Ben Woosley
2018-09-24 10:59:17 -04:00
parent 990fc0de1a
commit 9c5af58d51
6 changed files with 87 additions and 22 deletions
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11
src/core_io.h
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@@ -25,7 +25,16 @@ std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDeco
bool DecodeHexTx(CMutableTransaction& tx, const std::string& hex_tx, bool try_no_witness = false, bool try_witness = true);
bool DecodeHexBlk(CBlock&, const std::string& strHexBlk);
bool DecodeHexBlockHeader(CBlockHeader&, const std::string& hex_header);
uint256 ParseHashStr(const std::string&, const std::string& strName);
/**
* Parse a hex string into 256 bits
* @param[in] strHex a hex-formatted, 64-character string
* @param[out] result the result of the parasing
* @returns true if successful, false if not
*
* @see ParseHashV for an RPC-oriented version of this
*/
bool ParseHashStr(const std::string& strHex, uint256& result);
std::vector<unsigned char> ParseHexUV(const UniValue& v, const std::string& strName);
bool DecodePSBT(PartiallySignedTransaction& psbt, const std::string& base64_tx, std::string& error);
int ParseSighashString(const UniValue& sighash);